作者： 孟秋冬;肖谷清;宋娟娟;李必才

期刊： 离子交换与吸附,2019年35(1):41-49 ISSN：1001-5493

作者机构： [孟秋冬] Library, Hunan City University, Yiyang, 413000, China;[肖谷清; 宋娟娟; 李必才] College of Material and Chemical Engineering, Hunan City University, Yiyang, 413000, China

关键词： 2-氨基吡啶修饰的聚苯乙烯树脂;吸附

摘要： 氯甲基聚苯乙烯和2-氨基吡啶发生亲核取代反应,合成2-氨基吡啶修饰的聚苯乙烯树脂(简记为Jx-08),以XAD-4树脂为参照,研究JX-08树脂对水溶液中2,4-D的吸附性能.实验结果表明,JX-08树脂在较宽的pH值范围(pH值在2～11)对2,4-D的吸附量大,XAD-4树脂在pH值小于2时对2,4-D的吸附量大;JX-08树脂对2,4-D的吸附符合Freundlich方程模型,XAD-4树脂对2,4-D的吸附符合Langrnuir方程模型;当2,4-D流出液浓度为上样浓度的1％时,JX-08树脂和XAD-4树脂对2,4-D的吸附量分别为148.2mg/mL和40.Smg/mL.JX-08树脂和XAD-4树脂吸附的2,4-D可分别用6.5BV 2mol/L NaOH和6.5BV C2H5OH解吸.吸附机理表明,XAD-4树脂吸附2,4-D以疏水作用为主要推动力,而JX-08树脂对2,4-D的吸附存在阴离子交换和疏水作用,且阴离子交换对JX-08树脂吸附2,4-D的贡献大于疏水作用对JX-08树脂吸附2,4-D的贡献.

语种： 中文

作者： 胡银;肖谷清;杨勇;黎健坤;宋娟娟

期刊： 离子交换与吸附,2018年34(6):490-499 ISSN：1001-5493

作者机构： [胡银; 肖谷清; 杨勇; 黎健坤; 宋娟娟] College of Material and Chemical Engineering, Hunan Provincial Key Laboratory of Dark Tea and Jin-hua, Hunan City University, Yiyang, 413000, China

关键词： 复合孔结构;多重吸附机理;4-D酸

摘要： 将氯球中-CH_2Cl转化为亚甲基交联桥,合成微孔丰富的超高交联树脂(命名为JX-06)。同时将氯球中50%的-CH_2Cl转化为亚甲基交联桥,50%的-CH_2Cl与邻氨基吡啶反应,合成既具有超高交联树脂孔结构和大孔树脂孔结构,又具有邻氨基吡啶功能基的复合孔结构树脂(命名为JX-11),对比研究JX-06树脂和JX-11树脂对2,4-D酸的吸附性能。实验结果表明,JX-06树脂吸附2,4-D酸的吸附量随pH值的变化规律与2,4-D酸分子比(2,4-D酸分子在2,4-D酸分子和2,4-D酸离子总和中所占的比)随pH值的变化规律相一致。JX-11树脂在pH值为3.23时对2,4-D酸的吸附量最大。疏水效应和阴离子交换的多重吸附导致JX-11树脂对2,4-D酸的吸附量大于JX-06树脂。复合孔结构使JX-11树脂比JX-06树脂对2,4-D酸有更高的吸附速率。经5次吸附解吸循环, JX-06树脂对2,4-D酸的吸附量略有减小,而JX-11树脂对2,4-D酸的吸附量则保持稳定。

语种： 中文

作者： 游沛清;冯小萍;李滔滔;文瑞明;肖谷清

期刊： 现代食品,2018年(17):174-176 ISSN：2096-5060

作者机构： 湖南城市学院材料与化学工程学院,湖南 益阳,413000;[冯小萍; 李滔滔; 游沛清; 文瑞明; 肖谷清] 湖南城市学院

关键词： 茶;茶多糖;提取方法

摘要： 评述了采用水浸法、酶辅助提取法、微波辅助提取法、超声波辅助提取法、树脂法和超临界萃取法提取茶多糖的方法,对茶多糖的研究前景作了展望,为今后此类化合物的研究、开发提供可借鉴的依据.

语种： 中文

作者： 彭映林;卿微;肖谷清;宋娟娟;方芳

期刊： 湖南城市学院学报(自然科学版),2018年27(2):74-78 ISSN：1672-7304

作者机构： 湖南城市学院 材料与化学工程学院,湖南 益阳,413000;[卿微; 宋娟娟; 彭映林; 方芳; 肖谷清] 湖南城市学院

关键词： 砷;铁碳微电解;强化微电解

摘要： 采用铁碳微电解/H2O2耦合工艺预处理水溶液中砷,研究了溶液初始p H、铁碳球投加量、曝气流量、H2O2投加量、反应温度和初始总砷（TAs）浓度等因素对砷去除效果的影响﹒结果表明,在铁碳微电解体系中加入H2O2能明显提高水溶液中TAs和三价砷（As（Ⅲ））去除率﹒当溶液初始TAs和As（Ⅲ）浓度分别为539 mg/L和368 mg/L,溶液初始pH为2.5,铁碳球投加量为530 g/L,曝气流量为60 m L/min,H2O2投加量为2 m L,在15℃下曝气反应1 h时,溶液中TAs和As（Ⅲ）去除率分别达到61.94%和55.06%;然而,未加H2O2,在同样条件下处理,TAs和As（Ⅲ）去除率分别为47.07%和41.97%。

语种： 中文

作者： Xiao, Guqing*;Wen, Ruiming;Liu, Aijiao;He, Guowen;Wu, Dan

期刊： Journal of Hazardous Materials,2017年329:77-83 ISSN：0304-3894

通讯作者： Xiao, Guqing

作者机构： [Xiao, Guqing; Wen, Ruiming; Liu, Aijiao; He, Guowen; Wu, Dan] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

通讯机构： [Xiao, Guqing] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

关键词： Adsorption;Complexation;Hydrophobicity;Microporosity;Polystyrenes;Pore structure;Resins;Sodium hydroxide;Solutions;Adsorption capacities;Adsorption mechanism;Adsorption performance;Chloromethylated polystyrene;Dissociation curves;Hydrophobic interactions;Hypercrosslinked resins;Sodium hydroxide aqueous solution;Salicylic acid;2 aminopyridine derivative;carbene;polystyrene derivative;resin;salicylic acid;resin;salicylic acid;adsorption;chemical compound;chemical process;hydrophobicity;ion exchange;pore space;resin;salicylic acid;adsorption;anion exchange;Article;chemical structure;cross linking;hydrophobicity;pH;synthesis;adsorption;chemistry;comparative study;evaluation study;isolation and purification;kinetics;synthesis;thermodynamics;Adsorption;Hydrogen-Ion Concentration;Kinetics;Polystyrenes;Resins, Synthetic;Salicylic Acid;Thermodynamics

摘要： Two approaches were used to synthesize two resins with different pore structures. In one way, the [sbnd]CH2Cl groups in macroporous chloromethylated polystyrene resin were transformed to methylene bridges, and achieved a hypercrosslinked resin with plentiful micropores (denoted GQ-06). In the other way, 50% of the [sbnd]CH2Cl groups in chloromethylated polystyrene resin was used to produce micropores, while the residual 50% of the [sbnd]CH2Cl groups was reacted with 2-aminopyridine, and prepared another resin with double pore structure of hypercrosslinked resin and macroporous resin (denoted GQ-11). The adsorption of salicylic acid (SA) on GQ-11 was investigated using GQ-06 as the reference adsorbent. The effect of pH on the adsorption of SA on GQ-06 was consistent with the dissociation curve of SA. The maximum adsorption capacity of SA on GQ-11 was observed at the solution pH of 2.64. The greater adsorption rate of SA on GQ-11 than that of GQ-06 was attributed to its double pore structure. The multifunctional adsorption mechanism of anion exchange and hydrophobic interaction resulted in the larger equilibrium capacity of SA on GQ-11 than that of GQ-06. GQ-06 and GQ-11 could be regenerated by absolute alcohol and 80% of alcohol −0.5mol/L of sodium hydroxide aqueous solution, respectively. © 2017 Elsevier B.V.

语种： 英文

作者： Xiao, Guqing*;Wen, Ruimin;You, Peiqing;Wu, Dan

期刊： Microporous and Mesoporous Materials,2017年239:40-44 ISSN：1387-1811

通讯作者： Xiao, Guqing

作者机构： [Wen, Ruimin; Xiao, Guqing; You, Peiqing; Wu, Dan] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

通讯机构： [Xiao, Guqing] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

关键词： Adsorbents;Adsorption;Chemical bonds;Hydrogen;Hydrogen bonds;Microporosity;Phenols;Polymers;Styrene;Adsorption capacities;Adsorption of phenol;BET surface area;Crosslinked;Effect of hydrogen;Hyper-cross-linked polymeric adsorbents;Micropores;Styrene-divinylbenzene copolymers;Density functional theory

摘要： Different functional group modified hyper-cross-linked polymeric adsorbents H103, GQ-1, GQ-2 and GQ-5 were synthesized from macroporous crosslinked chloromethylated styrene-divinylbenzene copolymers. Phenol was selected as a hydrogen bonding donator. The object of this work was to explore the effect of hydrogen bonding receptor in micropores of adsorbent on adsorption capacity. Results showed the BET surface area and pore volume followed the order H103>GQ-5>GQ-2>GQ-1 while the adsorption capacity of phenol onto the four hyper-cross-linked polymeric adsorbents followed the order GQ-1>GQ-2>GQ-5>H103. The density functional theory indicated that hydrogen bonding receptor in micropores of the adsorbents was a crucial factor for the adsorption capacity order. © 2016 Elsevier Inc.

语种： 英文

作者： 肖谷清;王芳;危冬梅;齐风配

期刊： 离子交换与吸附,2017年33(3):236-244 ISSN：1001-5493

作者机构： [肖谷清; 王芳; 齐风配] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang, 413000, China;Hunan Food and Drug Vocational College, Changsha, 410208, China;[危冬梅] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang, 413000, China<&wdkj&>Hunan Food and Drug Vocational College, Changsha, 410208, China

关键词： 超高交联树脂;超声;磺化;吸附

摘要： 制备BET比表面积为1019.08m~2/g、微孔面积为844.44m~2/g的超高交联树脂(简记为 H-06),研究H-06超高交联树脂的超声辅助磺化。以负载的磺酸基团为评价指标,H-06超高交联树脂超声辅助磺化的最优条件为:二甲亚砜为溶胀剂、反应温度为80℃、超声功率为180W、硫酸浓度为92.5%、树脂与硫酸用量比为1:5、超声时间为1.5h。最优条件下超声辅助磺化树脂(简记为GQ-07)磺酸基团负载量为1.75m mol/g、BET比表面积为553.69m~2/g、微孔面积为483.48m~2/g。非超声辅助磺化树脂(简记为H-07)磺酸基团负载量为0.75m mol/g、BET比表面积为589.91m~2/g、微孔面积为514.34m~2/g。4种超高交联树脂对2-氨基酚的吸附量顺序为GQ-07> H-07>H-06>H103。

语种： 中文

作者： 文瑞明;游沛清;刘爱姣;肖谷清

期刊： 中南大学学报(自然科学版),2016年47(3):724-729 ISSN：1672-7207

通讯作者： Wen, Ruiming(wenruiming@sohu.com)

作者机构： [文瑞明; 游沛清; 刘爱姣; 肖谷清] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang;413000, China;[文瑞明; 游沛清; 刘爱姣; 肖谷清] 413000, China

通讯机构： College of Chemistry and Environmental Engineering, Hunan City University, Yiyang, China

关键词： 2-氨基吡啶;超高交联树脂;水杨酸;吸附

摘要： 以二氯乙烷为溶剂,FeCl_3为催化剂,氯球发生Friedel-Crafts反应制备氯质量分数为6.32%的超高交联树脂(简记为GQ-09),将GQ-09树脂进一步用2-氨基吡啶修饰,制备超高交联树脂(简记为GQ-10),研究GQ-10树脂对水杨酸的吸附性能。实验结果表明:GQ-10树脂在pH为2.16时对水杨酸的吸附性能最好;GQ-10树脂对水杨酸的吸附等温线同时服从Langmuir方程和Freundlich方程;与树脂的孔结构对应,GQ-10树脂对水杨酸的吸附在2个时间段均适用准一级速率方程;GQ-10树脂对水杨酸的吸附既有阴离子交换,又存在酸碱作用和疏水作用。 GQ-10树脂吸附的水杨酸可用80%乙醇-0.5 mol/L NaOH解吸,解吸率为99.41%。

语种： 中文

作者： Xiao, Guqing*;Wen, Ruimin

期刊： Fluid Phase Equilibria,2016年411:1-6 ISSN：0378-3812

通讯作者： Xiao, Guqing

作者机构： [Wen, Ruimin; Xiao, Guqing] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

通讯机构： [Xiao, Guqing] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

关键词： 2- Aminopyridine modified polystyrene resin;Adsorption;Glyphosate;Salinity resistance

摘要： Comparative adsorption of glyphosate from aqueous solution by 2-aminopyridine modified polystyrene resin (denoted GQ-08 resin), D301 resin and 330 resin was investigated with respect to influencing factors, salinity resistance and mechanism. Results showed the maximum adsorption capacity of glyphosate onto the three resins was observed at pH of 2.51, and glyphosate was adsorbed in the form of HOPO2-CH<inf>2</inf>NH2+CH<inf>2</inf>COOH and HOPO2-CH<inf>2</inf>NH2+CH<inf>2</inf>COO^-. The adsorption capacity of glyphosate onto the three resins followed the order 330 resin &gt;D301 resin &gt;GQ-08 resin, consistent with their total exchange capability order. GQ-08 resin exhibited excellent salinity resistance. Salinity resistance of GQ-08 resin resulted from the hydrogen bonding for the adsorption of glyphosate, while 330 resin and D301 resin exhibited the single adsorption mechanism of anion exchange. &copy;2015 Elsevier B.V.

语种： 英文

作者： Xiao, Guqing*;Wen, Ruiming;Wei, Dongmei

期刊： Fluid Phase Equilibria,2016年421:33-38 ISSN：0378-3812

通讯作者： Xiao, Guqing

作者机构： [Xiao, Guqing; Wen, Ruiming; Wei, Dongmei] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

通讯机构： [Xiao, Guqing] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

关键词： 5-Sulfosalicylic acid;Adsorption;Hydrophobic-hydrophilic;PDVB/PMAEM IPN;Salicylic acid

摘要： Hydrophobic-hydrophilic macroporous polydivinylbenzene/polymethylacrylethylenediamine IPN (PDVB/PMAEM IPN) was synthesized indirectly through the strong forced compatibility. The effects of the hydrophobicity of adsorbate on the adsorption of salicylic acid and 5-sulfosalicylic acid onto the hydrophobic-hydrophilic PDVB/PMAEM IPN were investigated. PDVB/PMAEM IPN exhibited greater adsorption capacity of salicylic acid than that of 5-sulfosalicylic acid. The absolute values of Delta H, Delta G and Delta S of the adsorption of salicylic acid onto PDVB/PMAEM IPN were greater than those of 5-sulfosalicylic acid, indicating the adsorption of salicylic acid onto PDVB/PMAEM IPN was more welcome. Adsorption mechanism proved that greater adsorption capacity of salicylic acid onto PDVB/PMAEM IPN than that of 5-sulfosalicylic acid was attributed to the stronger hydrophobicity of salicylic acid. (C) 2016 Elsevier B.V. All rights reserved.

语种： 英文

作者： Xiao, Guqing*;Wen, Ruiming;Wei, Dongmei;Wu, Dan

期刊： Microporous and Mesoporous Materials,2016年228:168-173 ISSN：1387-1811

通讯作者： Xiao, Guqing

作者机构： [Xiao, Guqing; Wen, Ruiming; Wei, Dongmei; Wu, Dan] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

通讯机构： [Xiao, Guqing] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

关键词： Adsorbents;Adsorption;Hydrophobicity;Ionic strength;Microporosity;Pore size;Size distribution;Solutions;Bimodal pore size distribution;Breakthrough capacity;Dissociation curves;Equilibrium adsorption capacity;Freundlich equations;Hyper-cross-linked polymeric adsorbents;Micro-porous surfaces;Theophylline;Polymers

摘要： According to the planar structure and the small molecular size of theophylline (TP), a novel hyper-cross-linked polymeric adsorbent with high microporous surface area (denoted GQ-06) was synthesized and its adsorption to TP was explored from aqueous solution. The results showed that GQ-06 possessed a high microporous surface area of 1223 m2/g and bimodal pore size distributions. The equilibrium adsorption capacity of TP on the five polymeric adsorbents followed an order as: XAD-4 &lt; NDA-88 &lt; H103 &lt;NDA-150 &lt;GQ-06, which was in agreement with the order of the microporous surface area. The adsorption as a function of the solution pH was accordant with the dissociation curve of TP from aqueous solution. The equilibrium adsorption capacity of TP on GQ-06 increased with increasing of the ionic strength due to the predominant contribution of the hydrophobic effect. The pseudo-first-order rate equation described the adsorption in two stages according to the bimodal pore size distributions. The adsorption isotherms were correlated to the Freundlich equation. The breakthrough capacity and the total capacity of TP on GQ-06 were up to 45.9 and 105.8 mg/mL respectively, and it could be regenerated by 4 BV of anhydrous ethanol. © 2016 Elsevier Inc. All rights reserved.

语种： 英文

作者： He, Guowen*;Wu, Dan;Xiao, Guqing

期刊： International Journal of Electrochemical Science,2015年10(12):10093-10103 ISSN：1452-3981

通讯作者： He, Guowen

作者机构： [Xiao, Guqing; He, Guowen; Wu, Dan] Hunan City Univ, Coll Chem & Enviromental Engn, Yiyang 413000, Peoples R China.;[Xiao, Guqing; He, Guowen; Wu, Dan] Hunan City Univ, Inst Polymer Mat & Engn, Yiyang 413000, Peoples R China.

通讯机构： [He, Guowen] H;Hunan City Univ, Coll Chem & Enviromental Engn, Yiyang 413000, Peoples R China.

关键词： Dopamine;Low working potential;[email protected] Mn 3 O 4

摘要： Graphene sheets (GS)@manganic manganous oxide (Mn3O4) nanocomposites were prepared via a simple solvothermal process. GS@Mn3O4/nafion (Nf) film modified glassy carbon electrode (GCE) was fabricated and applied for the detection of dopamine (DA) without the interference of ascorbic acid (AA) at the low working potential. The prepared nanocomposites (GS@Mn3O4) were characterized by X-ray diffraction (XRD) and fourier transform infrared spectroscopy (FT-IR), and the morphology of different electrodes was characterized by scanning electron microscopy (SEM). The electrochemical properties of the modified electrode (GCE|GS@Mn3O4/Nf) were investigated by electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV) and current-time method (i-t curve). Under the optimized experimental conditions, the i-t curve showed a linear dependence on DA concentrations ranging from 1.0×10-6 to 1.3×10-3 M (R=0.9985) with a detection limit of 8.0×10-8 M (S/N=3). The proposed method was used to detect DA in real pharmaceutical samples using the standard addition method without additional sample pre-treatment with satisfactory results, which showed great promise for screen-determination of DA in real samples. © 2015 The Authors.

语种： 英文

作者： 肖谷清;周贤勇;文瑞明;尹志芳

期刊： 环境工程学报,2015年9(1):230-234 ISSN：1673-9108

作者机构： [肖谷清; 文瑞明; 周贤勇; 尹志芳] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang, 413000, China

关键词： LVJ纳滤膜;磺胺二甲基嘧啶;截留率

摘要： 用LVJ-NF102聚酰胺纳滤膜在LJ-2540ST卷式膜中试设备中进行纳滤截留水体中磺胺二甲基嘧啶实验,考察操作时间、操作压力、磺胺二甲基嘧啶浓度和离子强度等因素对纳滤膜截留磺胺二甲基嘧啶的影响。结果表明,LVJ纳滤膜对磺胺二甲基嘧啶的截留率100 min后基本稳定;随操作压力的增加,LVJ纳滤膜通量和对磺胺二甲基嘧啶的截留率都增大;随着溶液中磺胺二甲基嘧啶浓度的增加,LVJ纳滤膜通量下降,对磺胺二甲基嘧啶的截留率先增大后维持不变;随溶液中离子强度的增加,LVJ纳滤膜通量和对磺胺二甲基嘧啶的截留率都减小。在磺胺二甲基嘧啶浓度为28.2 mg/L、操作压力为0.4 MPa条件下,LVJ纳滤膜5 min可使溶液中磺胺二甲基嘧啶截留82.7%。

语种： 中文

作者： Xiao, Guqing*;Wen, Ruimin;Wei, Dongmei;Wu, Dan

期刊： Journal of Hazardous Materials,2014年280:97-103 ISSN：0304-3894

通讯作者： Xiao, Guqing

作者机构： [Wen, Ruimin; Xiao, Guqing; Wei, Dongmei; Wu, Dan] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

通讯机构： [Xiao, Guqing] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

关键词： Adsorption;Aniline;Chemical reactions;Microporosity;Nitrogen compounds;Solutions;Thermoanalysis;Adsorption capacities;Adsorption kinetics;Adsorption process;Hyper-cross-linked polymeric adsorbents;Micropores;P-nitroaniline;Steric hindrances;Thermo dynamic analysis;Polymers;Adsorption;4 nitroaniline;adsorbent;4-nitroaniline;aniline derivative;polymer;water pollutant;nitrobenzene;adsorption;aqueous solution;phenol;polymer;reaction kinetics;thermodynamics;organic compound;adsorption kinetics;aqueous solution;article;correlation coefficient;cross linking;enthalpy;Friedel Crafts reaction;isotherm;pH;polymerization;stereospecificity;thermodynamics;adsorption;chemistry;isolation and purification;kinetics;water pollutant;adsorption kinetics;Article;chemical structure;cross linking;polymerization;Adsorption;Aniline Compounds;Kinetics;Polymers;Thermodynamics;Water Pollutants, Chemical

摘要： A hyper-cross-linked polymeric adsorbent with "CH<inf>2</inf>phenolCH<inf>2</inf>" as the cross-linked bridge (denoted GQ-05), and another hyper-cross-linked polymeric adsorbent with "CH<inf>2</inf>p-cresolCH<inf>2</inf>" as the cross-linked bridge (denoted GQ-03) were synthesized to reveal the effect of the steric hindrance of micropores in the hyper-cross-linked polymeric adsorbent on adsorption capacity and adsorption rate of p-nitroaniline (PNA) from aqueous solution. The results of adsorption kinetics indicated the order of the adsorption rate GQ-05&gt;GQ-03. The pseudo-first-order rate equation could describe the entire adsorption process of PNA onto GQ-05 while the equation characterized the adsorption process of GQ-03 in two stages. The order of the adsorption capacity GQ-05&gt;GQ-03 was demonstrated by thermodynamic analysis and dynamic adsorption. The steric hindrance of micropores in the hyper-cross-linked polymeric adsorbent was a crucial factor for the order of the adsorption capacity and adsorption rate. &copy;2014 Elsevier B.V.

语种： 英文

作者： Xiao, Gu-Qing*;Li, Hua;Xu, Man-Cai

期刊： Journal of Applied Polymer Science,2013年127(5):3858-3863 ISSN：0021-8995

通讯作者： Xiao, Gu-Qing

作者机构： [Xiao, Gu-Qing] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.;[Li, Hua; Xu, Man-Cai] Hunan Normal Univ, Coll Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China.

通讯机构： [Xiao, Gu-Qing] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.

关键词： synthesis;functionalization of polymers;salicylic ACID;adsorption

摘要： On account of the high toxicity of nitrobenzene, 1,2-dichloroethane was used as solvent. A novel water-compatible hyper-cross-linked resin functionalized with amino-group (denoted as GQ-04) was synthesized to remove salicylic acid (SA) in aqueous solution. The maximum adsorption capacity of SA onto GQ-04 was observed at pH of 1.88. The adsorption capacity increased with the increasing salt concentration. The adsorption kinetic data obeyed the pseudo-second-order rate equation and the adsorption isotherms can be characterized by Freundlich model. The intraparticle diffusion was the main rate-controlling step. The saturated adsorption quantity of SA was up to 119.9 mg·mL-1 according to the dynamic adsorption at 293 K. The resin could be regenerated by the 6 BV mixed solution of 80% ethanol and 0.5 mol/L NaOH. The size matching and hydrogen bonding between GQ-04 and SA and the micropore structure resulted in the larger adsorption capacity in comparison with XAD-4 and H103 resin. Copyright © 2012 Wiley Periodicals, Inc.

语种： 英文

作者： Guqing Xiao;Peng Tang

期刊： Applied Mechanics and Materials,2013年252:228-231 ISSN：1660-9336

通讯作者： Xiao, G.(xiaoguqing@yahoo.com.cn)

作者机构： [Guqing Xiao; Peng Tang] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413000, China

通讯机构： [Xiao, G.] C;College of Chemistry and Environmental Engineering, , Yiyang 413000, China

会议名称： International Conference on Applied Mechanics and Manufacturing System (AMMS 2012)

会议时间： NOV 24-25, 2012

会议地点： Guangzhou, PEOPLES R CHINA

会议论文集名称： Applied Mechanics and Materials

关键词： Adsorption;Hyper-cross-linked resin;Phenol

摘要： A hyper-cross-linked polymeric adsorbent GQ-1 functionalized with acetamino groups and hydroxyl groups was synthesized to remove phenol. Results showed that the maximum adsorption capacity of GQ-1 emerged at the molecular state of phenol. More favorable adsorption of phenol onto GQ-1 than XAD-4 was further demonstrated by thermodynamic analysis. The breakthrough capacity of GQ-1 was 2.53 times that of XAD-4 when the effluent concentration reached 5mg/L.

语种： 英文

作者： 谢丹;李浔;龙立平;肖谷清;林立

期刊： 广州化工,2012年40(12):93-95,126 ISSN：1001-9677

作者机构： 湖南城市学院化学与环境学院,湖南益阳,413000;长沙理工大学化学与生物工程学院,湖南长沙,410076;[李浔] 长沙理工大学;[谢丹; 龙立平; 林立; 肖谷清] 湖南城市学院

关键词： 生物质甘油;Cu-Cr-Zn催化剂;羟基丙酮

摘要： 用共沉淀法制备了Cu-Cr-Zn催化剂,考察了Cu/Cr/Zn比、沉淀温度、沉淀时pH值、煅烧温度等制备条件对甘油制备羟基丙酮的影响,并对催化剂进行了表征。结果表明：共沉淀法制备Cu-Cr-Zn催化剂具有较高的催化活性,而且其稳定性和再生能力较好,适宜催化剂制备条件为：Cu/Cr/Zn比为1∶1∶0.5,沉淀温度为70℃,沉淀时pH值为8.0,煅烧温度为400℃,羟基丙酮的选择性可达到90.2%。

语种： 中文

作者： Xiao, Gu-qing*;Wu, Yu-xiang

期刊： Advanced Materials Research,2012年418-420:402-405 ISSN：1022-6680

通讯作者： Xiao, Gu-qing

作者机构： [Xiao, Gu-qing] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.;[Wu, Yu-xiang] Hunan City Univ, No Middle Sch 17, Yiyang 413000, Peoples R China.

通讯机构： [Xiao, Gu-qing] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

会议名称： 2nd International Conference on Advances in Materials and Manufacturing Processes (ICAMMP 2011)

会议时间： DEC 16-18, 2011

会议地点： Guilin, PEOPLES R CHINA

会议主办单位： [Xiao, Gu-qing] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.^[Wu, Yu-xiang] Hunan City Univ, No Middle Sch 17, Yiyang 413000, Peoples R China.

会议论文集名称： Advanced Materials Research

关键词： H103 resin;XAD-4 resin;Phenol;Adsorption

摘要： The objective of this work was to study the comparison of the adsorption performances of phenol in aqueous solution onto H103 resin and XAD-4 resin. Experimental results showed that the molecular form of phenol is favorable for the adsorption. The adsorption capacity of phenol onto H103 was much larger than that of XAD-4 due to its average pore diameter. The pseudo-first-order rate equation can characterize the adsorption of phenol onto H103 and XAD-4. The rate constant k<inf>1</inf> for XAD-4 is greater than the one of H103 at the same condition, consistent with the shorter required time for XAD-4. &copy;(2012) Trans Tech Publications, Switzerland.

语种： 英文

作者： Xiao, Guqing;Fu, Lichun;Li, Aimin*

期刊： Chemical Engineering Journal,2012年191:171-176 ISSN：1385-8947

通讯作者： Li, Aimin

作者机构： [Fu, Lichun; Xiao, Guqing; Li, Aimin] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210093, Jiangsu, Peoples R China.;[Xiao, Guqing] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

通讯机构： [Li, Aimin] N;Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210093, Jiangsu, Peoples R China.

关键词： Acetylaniline;Adsorption;Bisphenol A;Hyper-cross-linked polymeric adsorbent

摘要： A novel hyper-cross-linked polymeric adsorbent modified with acetylaniline as the cross-linked bridge (denoted GQ-02) was synthesized for the enhanced removal of bisphenol A (BPA) from aqueous solution. Its chemical structure and pore structure were characterized by infrared spectroscopy and surface area analysis. Results showed that the adsorption capacity of BPA onto GQ-02 was larger than that of the commercial resins NDA-150, H103, NDA-88, NDA-99, and XAD-4 due to the cross-linked bridge of acetylaniline uploaded on GQ-02 resin. The solution pH had no significant effect on the adsorption capacity until it was higher than 6.39. The adsorption rate of GQ-02 was greater than that of H103 because of the longer cross-linked bridge between two benzene rings. The adsorption isotherms could be correlated to the Langmuir equation. More favorable adsorption of BPA onto GQ-02 than H103 was further demonstrated by thermodynamic analysis. Nearly 100% regeneration efficiency for GQ-02 was achieved by 80% ethanol and 0.5. mol/L NaOH. © 2012.

语种： 英文

作者： Xiao, Guqing*;Long, Liping

期刊： Applied Surface Science,2012年258(17):6465-6471 ISSN：0169-4332

通讯作者： Xiao, Guqing

作者机构： [Xiao, Guqing; Long, Liping] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.;[Xiao, Guqing] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210093, Jiangsu, Peoples R China.

通讯机构： [Xiao, Guqing] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.

关键词： Adsorption;Aniline;Hyper-cross-linked resin;XAD-4

摘要： A novel water-compatible microporous and mesoporous hyper-cross-linked resin modified with phenolic hydroxyl group (named as GQ-03) was synthesized to remove aniline in aqueous solution as compared with XAD-4. The maximum adsorption capacity of GQ-03 emerged at the molecular state for both aniline and p-cresol while the pH dependency trend of aniline adsorbed onto XAD-4 was accordant with the dissociation curve of aniline. The ionic strength influenced the adsorption obviously. The pseudo-first-order rate equation could describe the adsorption process of aniline onto GQ-03 in two stages while this equation could characterize the entire adsorption process of XAD-4. The adsorption isotherms could be correlated to the Freundlich model, higher KF and n values for GQ-03 than XAD-4. The breakthrough capacity and the total adsorption capacity of GQ-03 and XAD-4 was up to 47.2 mg mL−1 and 28.3 mg mL−1, 271.7 mg mL−1 and 115.6 mg mL−1, respectively. The size matching between the pore diameter of GQ-03 and the molecular size of aniline, and hydrogen bonding between GQ-03 and aniline resulted in the larger adsorption capacity.

语种： 英文