作者机构：
[Xiao, Gu-qing] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413000, China;[Zhang, Xue-jun] College of Physics, Hunan City University, Yiyang 413000, China
作者机构：
[ Wu, Yu-Xiang ] No Middle School of Seventeen, Hunan City University, Yiyang 413000, China;[Xiao, Gu-Qing ] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413000, China
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.
期刊：
Journal of Applied Polymer Science,2013年127(5):3858-3863 ISSN：0021-8995
通讯作者：
Xiao, G.-Q.(xiaoguqing@yahoo.com.cn)
作者机构：
[ Li, Hua ; Xu, Man-Cai ] College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, China;[Xiao, Gu-Qing ] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang, Hunan 413000, China
通讯机构：
[Xiao, GQ] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.
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. (c) 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
作者机构：
[Liping Long; Guqing Xiao] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413000, China;[Guqing Xiao] State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China
通讯机构：
[Xiao, GQ] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.
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.;In view of the high toxicity of nitrobenzene, a novel water-compatible microporous and mesoporous hyper-cross-linked resin modified with phenolic hydroxyl group GQ-03 was synthesized with the solvent of 1,2-dichloroethane. GQ-03 displayed higher adsorption capacity than XAD-4 because of the size matching between the pore diameter of GQ-03 and the molecular size of aniline, and hydrogen bonding between GQ-03 and aniline. As an ideal adsorbent for the removal of aniline, GQ-03 shows an excellent adsorption behavior and acceptable adsorption time.;;► In view of the toxicity of nitrobenzene, 1,2-dichloroethane was used as solvent. ► The BET surface area of water-compatible GQ-03 is up to be 1154.45 m2/g. ► The microporous and mesoporous structure, and hydrogen bonding bring larger adsorption capacity. ► GQ-03 shows an excellent adsorption behavior as an ideal adsorbent.
期刊：
Polymers for Advanced Technologies,2009年20(12):1157-1162 ISSN：1042-7147
通讯作者：
Xu, MC
作者机构：
[Xie, Xianglin; Xu, Mancai; Xiao, Guqing; Gao, Shuqin] College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;[Xiao, Guqing] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413000, China
通讯机构：
[Xu, MC] Hunan Normal Univ, Coll Chem & Chem Engn, Changsha 410081, Hunan, Peoples R China.
作者：
Wang, Jiaoliang;Li, Hao;Long, Liping;Xiao, Guqing;Xie, Dan
期刊：
Journal of Luminescence,2012年132(9):2456-2461 ISSN：0022-2313
通讯作者：
Wang, J.(wangjiaoliang@126.com)
作者机构：
[ Xiao, Guqing ; Wang, Jiaoliang ; Li, Hao ; Xie, Dan ; Long, Liping ] College of Chemistry and Environment Engineering, Hunan City University, Yiyang 413000, China
通讯机构：
[Wang, JL] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.
关键词：
Aqueous media - Bio-imaging - Color changes - Fast responsive - Fluorescent sensors - Image - Kinetic assay - Live-cell imaging - Naked-eye - Real time tracking
期刊：
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2015年10(12):10093-10103 ISSN：1452-3981
通讯作者：
He, GW
作者机构：
[Wu, Dan; He, Guowen; Xiao, Guqing] Hunan City Univ, Coll Chem & Enviromental Engn, Yiyang 413000, Peoples R China.;[Wu, Dan; He, Guowen; Xiao, Guqing] Hunan City Univ, Inst Polymer Mat & Engn, Yiyang 413000, Peoples R China.
通讯机构：
[He, GW] Hunan City Univ, Coll Chem & Enviromental Engn, Yiyang 413000, Peoples R China.
关键词：
GS@ Mn3O4;Dopamine;Low working potential
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 vertical bar 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 x 10 (-6) to 1.3 x 10(-3) M (R = 0.9985) with a detection limit of 8.0 x 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.
期刊：
Chinese Chemical Letters,2012年23(01):123-126 ISSN：1001-8417
通讯作者：
Xiao, GQ
作者机构：
[Xiao Gu Qing; Long Li Ping; Wang Jiao Liang] College of Chemistry and Environmental Engineering, Hunan City University
通讯机构：
[Xiao, GQ] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Peoples R China.
关键词：
p-Acetaminophen resin;Vanillin;Adsorption
摘要：
A novel p-acetaminophen resin (named as GQ-1) was synthesized with chloromethylated polystyrene and p-acetaminophen. It can be used without any wetting process. The objective of this work was to study the adsorption performances for vanillin onto GQ-1 with two kinds of the hydrogen bond site of acetamino group and hydroxyl group. The results showed that the adsorption property of vanillin onto GQ-1 was superior to XAD-4, H103, NDA150, and NDA88. The adsorption capacity of vanillin onto GQ-1 is not greatly discrepant until the solution pH is higher than 5.31. The saturated adsorption quantity of vanillin was up to 141.32 mg/mL (wet resin) according to the dynamic adsorption and desorption experiments at 293 K. The resin could be regenerated by 7 BV ethanol.
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：
[ Wu, Dan ; Wei, Dongmei ; Wen, Ruimin ] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413000, PR China;[Xiao, Guqing ] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413000, PR China. Electronic address: xiaoguqing2005@163.com
通讯机构：
[Xiao, Guqing] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413000, PR China. Electronic address:
期刊：
Chemical Engineering Journal,2012年191(00):171-176 ISSN：1385-8947
通讯作者：
Li, AM
作者机构：
[Xiao, Guqing] College of Chemistry and Environmental Engineering, Hunan City University, Yiyang 413000, China;[Li, Aimin; Xiao, Guqing; Fu, Lichun] State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210093, China
通讯机构：
[Li, AM] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210093, Jiangsu, Peoples R China.
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.;In view of the toxicity of nitrobenzene, 1,2-dichloroethane was used as solvent. The adsorption capacity of BPA on the novel adsorbent GQ-02 is larger than that of the commercial resins. GQ-02 had higher rate than H103. GQ-02 can be looked on as a promising adsorbent for BPA due to the uploaded cross-linked bridge of acetylaniline.;;► In view of the toxicity of nitrobenzene, 1,2-dichloroethane was used as solvent. ► A novel adsorbent modified with acetylaniline as the cross-linked bridge was synthesized. ► The adsorption capacity of BPA on GQ-02 was larger than that of the commercial resins. ► GQ-02 had higher rate constant than H103.
