Facile synthesis, characterization and visible-light photocatalytic performance of Ag3PO4
作者：
Li, L.;Manhong, H.* ;Zliping, L.;Zhe, S.;Donghui, C.
期刊：
Asian Journal of Chemistry ,2014年26(20):7055-7060 ISSN：0970-7077
通讯作者：
Manhong, H.
作者机构：
[Zhe, S.; Manhong, H.] School of Environmental Science and Engineering, Donghua University, Shanghai, 201620, P.R., China;[Zliping, L.] School of Chemical and Environmental Engineering, Hunan City University, Yiyang, 413000, China;Shanghai Institute of Technology, Shanghai, 200235, P.R., China;[Donghui, C.] School of Environmental Science and Engineering, Donghua University, Shanghai, 201620, P.R., China, Shanghai Institute of Technology, Shanghai, 200235, P.R., China;[Li, L.] School of Environmental Science and Engineering, Donghua University, Shanghai, 201620, P.R., China, School of Chemical and Environmental Engineering, Hunan City University, Yiyang, 413000, China
通讯机构：
[Manhong, H.] S;School of Environmental Science and Engineering, Donghua University, Shanghai, China
关键词：
Ag3PO4;Photocatalyst;Tetracycline;Visiblel light
摘要：
Silver(I) phosphate (Ag3PO4) photocatalysts were synthesized via a facile solid phase ion-exchange method, X-ray diffraction, scanning electron microscopy and UV-visible diffuse reflectance spectroscopy (DRS) were used to characterize the as-prepared samples. The photocatalytic performance and mechanism of as-prepared samples were investigated by the degradation of tetracyclines in aqueous solution under visible light irradiation (λ > 420 nm). The results indicated that the as-prepared samples were irregular spherical morphology with paticle size of 0.5-1.5 μm and exibited strong light absorbance in the visible light region. The superior photocatalytic activity and removal efficiency of total organic carbon (TOC) were also observed. The mechanism expriment results demonstrated that the O_2~(·-), ~·OH and hole were all reactive oxygen species and the possible photocatalytic mechanism was proposed.
语种：
英文
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六堡茶对胰岛素抵抗3T3-L1脂肪细胞糖脂代谢的影响
作者：
滕翠琴;刘仲华;龚受基;彭雨轩;马蕊
期刊：
茶叶科学 ,2014年34(3):230-238 ISSN：1000-369X
作者机构：
[刘仲华; 滕翠琴] 国家植物功能成分利用工程技术研究中心;湖南农业大学茶学教育部重点实验室;桂林医学院药学院;湖南城市学院黑茶研究所;[马蕊] 广西职业技术学院
关键词：
六堡茶;糖脂代谢;胰岛素抵抗;3T3-L1脂肪细胞
摘要：
采用软脂酸诱导3T3-L1脂肪细胞胰岛素抵抗后,给予不同剂量的六堡茶水提物治疗,探讨六堡茶对胰岛素抵抗3T3-L1脂肪细胞的糖脂代谢的影响。结果表明,1 mmol·L-1的软脂酸对3T3-L1脂肪细胞作用24 h后,葡萄糖摄取量减少,建立胰岛素抵抗模型。六堡茶对模型细胞干预24 h后,与模型组比较,细胞培养基的残留液中葡萄糖和游离脂肪酸的含量降低;对糖脂代谢相关关键酶（己糖激酶、6-磷酸果糖激酶-1、丙酮酸激酶、甘油-3-磷酸酰基转移酶）和葡萄糖转运子基因表达都有上调作用,并下调乙酰辅酶A羧化酶、蛋白酪氨酸磷酸酯酶1B基因表达。低剂量的六堡茶下调肉碱脂酰转移酶-I基因的表达,但是高剂量能显著上调肉碱脂酰转移酶-I基因表达。实验证明了六堡茶能够提高胰岛素抵抗3T3-L1脂肪细胞对葡萄糖的摄取能力,同时促进细胞内糖脂代谢,六堡茶有改善3T3-L1脂肪细胞胰岛素抵抗的作用。
语种：
中文
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Synthesis and Crystal Structure of Aromatic Hydrazone Compounds Containing Pyrazole
作者：
Ren, Tiegang;Liu, Shuyun;Li, Yongzhe;Li, Guihui* ;Wang, Jie
期刊：
Journal of Chemical Crystallography ,2014年44(7):346-351 ISSN：1074-1542
通讯作者：
Li, Guihui
作者机构：
[Ren, Tiegang; Li, Yongzhe; Wang, Jie] Henan Univ, Fine Chem & Engn Res Inst, Coll Chem & Chem Engn, Kaifeng 475004, Peoples R China.;[Liu, Shuyun] Hunan City Univ, Yiyang 413000, Peoples R China.;[Li, Guihui] Henan Univ, Key Lab, Minist Educ Special Funct Mat, Kaifeng 475004, Peoples R China.
通讯机构：
[Li, Guihui] H;Henan Univ, Key Lab, Minist Educ Special Funct Mat, Kaifeng 475004, Peoples R China.
关键词：
Aromatic hydrazone;Pyrazole;Synthesis;Crystal structure;Characterization
摘要：
Two novel aromatic hydrazone compounds containing pyrazole group were synthesized with 1-phenylpyrazole-4-carbaldehyde and benzene hydrazine (or p-tolylhydrazine hydrochloride) as the starting materials. As-synthesized aromatic hydrazone compounds were characterized by means of 1H NMR, FT-IR, Ms and single-crystal X-ray diffraction. Results shown that two aromatic hydrazone compounds crystallizes in the monoclinic system of space group P21/n for A and Pc for B respectively. Graphical Abstract: [Figure not available: see fulltext.] © 2014 Springer Science+Business Media New York.
语种：
英文
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Flotation on recovery of electrode materials from spent lithium-ion batteries
作者：
文瑞明;刘长辉;游沛清;邱文辉;林毅辉
期刊：
中南大学学报(自然科学版) ,2014年45(1):40-44 ISSN：1672-7207
通讯作者：
Wen, R.(wenruiming@sohu.com)
作者机构：
[游沛清; Qiu, Wenfei; 刘长辉; 文瑞明; Lin, Yifei] College of Chemistry and Environment Engineering, Hunan City University, Yiyang 413000, China
通讯机构：
College of Chemistry and Environment Engineering, Hunan City University, China
关键词：
浮选法;锂离子电池;钴酸锂;甲基异丁基甲醇
摘要：
采用柴油作捕收剂、甲基异丁基甲醇(MIBC)作起泡剂对锂离子电池电极材料进行浮选实验研究,考察捕收剂用量、起泡剂用量、分散剂和抑制剂种类及用量对正极材料钴酸锂回收率的影响。研究结果表明:当矿浆质量浓度为0.05 g/mL,pH 为6.0时,以0.15 mg柴油为捕收剂,0.75 mg六偏磷酸钠为分散剂,0.75 mg聚丙烯酸钠作抑制剂,0.84 mg MIBC为起泡剂,正极材料钴酸锂的回收率达93%。
语种：
中文
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黑茶乙醇提取物以及其抗氧化性的研究
作者：
刘蓉;刘石泉;龙立平;赵运林;张蓉
期刊：
湖南城市学院学报(自然科学版) ,2014年23(1):52-55 ISSN：1672-7304
作者机构：
湖南城市学院化学与环境工学院,湖南益阳,413000;[张蓉; 龙立平; 刘蓉; 刘石泉; 赵运林] 湖南城市学院
关键词：
黑茶;乙醇提取物;抗氧化性;自由基;分光光度法
摘要：
目的：研究黑茶的抗氧化性作用.方法：采用溶液超声波提取法提取出黑茶的乙醇提取物,再用分光光度法测定不同浓度的黑茶乙醇提取物对羟基自由基、DPPH自由基的抑制率以及还原能力.结果：在一定范围内,随着黑茶提取物的含量增加其对自由基的抑制作用以及还原能力都逐渐增强.当提取液体积为0.20 mL时,提取液对羟基自由基的抑制达到最大为51.70％.在黑茶提取液体积达到0.16 mL时,其对DPPH自由基的抑制达到最高为87.44％.黑茶提取物的还原能力,在一定浓度范围内呈现正相关性A=0.040 3＋2.007 4V,相关系数为0.999 6.结论：黑茶乙醇提取物具有较好的抗氧化性.
语种：
中文
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PREVENTATIVE EFFECTS OF FUZHUAN BRICK TEA EXTRACTS ON TETRAOXYPYRIMIDINE - INDUCED EXPERIMENTAL DIABETES
作者：
Liu, S. Q.;Zhao, Y. L.;Peng, Y. X.;Hu, Z. Y.;Long, L. P.;...
期刊：
BASIC & CLINICAL PHARMACOLOGY & TOXICOLOGY ,2014年115(SUPPL-4):7-7 ISSN：1742-7835
作者机构：
[Long, L. P.; Peng, Y. X.; Liu, S. Q.; Zhao, Y. L.; Hu, Z. Y.] Hunan City Univ, Coll Chem & Environm Engn, Yiyang, Hunan, Peoples R China.;[Yang, X. P.] Univ Colorado Denver, Sch Med, Dept Med, Div Med Oncol, Aurora, CO USA.;[Weir, T.] Colorado State Univ, Dept Food Sci & Nutr, Ft Collins, CO 80523 USA.
语种：
英文
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Highly enantioselective construction of spirocyclopentaneoxindoles containing four consecutive stereocenters through an organocatalytic iminium-enamine cascade reaction
作者：
Ding, Liang-Zhong* ;Zhong, Tong-Sheng;Wu, Hao;Wang, Yong-Mei
期刊：
European Journal of Organic Chemistry ,2014年2014(24):5139-5143 ISSN：1434-193X
通讯作者：
Ding, Liang-Zhong
作者机构：
[Zhong, Tong-Sheng; Ding, Liang-Zhong] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.;[Wu, Hao; Wang, Yong-Mei] Nankai Univ, Dept Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China.
通讯机构：
[Ding, Liang-Zhong] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.
关键词：
Organocatalysis;Asymmetric synthesis;Spiro compounds;Domino reactions;Michael addition
摘要：
Spirocyclopentaneoxindole derivatives containing four consecutive stereocenters, including a spiro quaternary center, were constructed by an organocatalytic iminium-enamine cascade sequence in good yields (up to 86 %) with excellent enantiomeric (up to >99 % ee) and diastereomeric purities (up to >99:1 dr). This highly efficient procedure will allow diversity-oriented syntheses of this intriguing class of compounds with potential biological activities. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
语种：
英文
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Purification and characterization of white laccase from the white-rot fungus panus conchatus
作者：
Zhou, Pandeng;Fu, Chaoying;Fu, Shiyu* ;Zhan, Huaiyu
期刊：
BIORESOURCES ,2014年9(2):1964-1976 ISSN：1930-2126
通讯作者：
Fu, Shiyu
作者机构：
[Fu, Shiyu; Fu, Chaoying; Zhou, Pandeng; Zhan, Huaiyu] S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China.;[Zhou, Pandeng] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.
通讯机构：
[Fu, Shiyu] S;S China Univ Technol, State Key Lab Pulp & Paper Engn, Guangzhou 510640, Guangdong, Peoples R China.
关键词：
Activity center;Copper;Iron;Panus conchatus;White laccase;White-rot fungus;Zinc
摘要：
Laccase is a kind of polyphenol oxidase having potential in applications for pulp bleaching, waste water treatment in mills, and removal of phenols in the food industry. The normal laccase from fungus or bacterial contains four copper atoms per protein molecular, imparting a blue color. Here it is reported that a white laccase is produced by a white rot fungus Panus conchatus from its solid-state fermentation. The activity center of this laccase is Cu2FeZn, which lacks the typical type-1 blue copper color. The polyacrylamide gel electrophoresis of purified laccase showed a main polypeptide with a molecular weight of about 60 kDa. Laccase substrate 2,6-dimethoxylphenol and others, such as syringaldazine, o-tolidine, and ABTS, were readily oxidized, among which the Km for syringaldazine was the highest. The isoelectric point of this enzyme was 3.6 and it was stable at temperatures below 45°C over a wide range of pH (4-12).
语种：
英文
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微生物燃料电池驱动的光电催化降解甲基橙
作者：
孙哲;林立;黄满红;陈东辉
期刊：
环境工程学报 ,2014年8(12):5383-5387 ISSN：1673-9108
通讯作者：
Chen, D.
作者机构：
[孙哲; 黄满红] State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China;School of Chemical and Environmental Engineering, Hunan City University, Yiyang, 413000, China;[陈东辉] School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, 200235, China;[林立] State Environmental Protection Engineering Center for Pollution Treatment and Control in Textile Industry, College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China, School of Chemical and Environmental Engineering, Hunan City University, Yiyang, 413000, China
通讯机构：
[Chen, D.] S;School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China
关键词：
微生物燃料电池;Cu_2O纳米线;光电催化;甲基橙;降解
摘要：
实验制备出了具有光催化性能的Cu_2O纳米线电极,对比研究了Cu_2O电极在光催化、微生物燃料电池驱动的电催化和微生物燃料电池驱动的光电催化反应过程中对甲基橙溶液的降解效果的影响。实验结果表明,微生物燃料电池驱动的光电催化反应对甲基橙的降解效果最好,当溶液pH为3、外加偏压为0.7 V、反应时间为40 min时,对甲基橙的降解率可以达到83%。实验首次利用微生物燃料电池作为外界驱动电压光电协同降解了甲基橙,证明在微生物燃料电池产生的较低电压也可以对光电极催化降解污染物的效率有提升。
语种：
中文
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紫苏粕中黄酮类化合物的提取研究
作者：
尹志芳;彭晓赟;梁赛;李兰崇;杨宇强;...
期刊：
湖南城市学院学报(自然科学版) ,2014年23(1):40-43 ISSN：1672-7304
作者机构：
湖南城市学院化学与环境工学院,湖南益阳,413000;[杨宇强; 梁赛; 尹志芳; 彭晓赟; 汤梓雄; 李兰崇] 湖南城市学院
关键词：
紫苏粕;黄酮类化合物;芦丁
摘要：
用乙醇浸提法从紫苏粕中提取黄酮类化合物,通过单因素及正交试验,分别考察了浸提时间、浸提温度、乙醇体积分数及料液比对提取率的影响.结果表明：对照样品的线性回归方程为A=0.004 9＋0.01 c,相关系数R=0.999 8;浸提时间2h、温度70℃、乙醇体积分数50％、固液比1∶12 g·mL＾-1时黄酮类化合物的得率最高为51.34 mg·g＾-1,加标回收率在94.40％-107.18％之间.原紫苏叶中的黄酮类化合物的平均得率为70.09mg·g＾-1,说明紫苏叶经超临界CO2提取挥发油后黄酮类物质的损失较少,该工作可以促进紫苏粕资源的综合利用.
语种：
中文
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Treatment for phenol-containing wastewater with modified waste tea leaves
作者：
Song, Juanjuan*
期刊：
Journal of Chemical and Pharmaceutical Research ,2014年6(7):1604-1612 ISSN：0975-7384
通讯作者：
Song, Juanjuan
作者机构：
[Song, Juanjuan] School of Chemical and Environmental Engineering, Hunan City University, Yiyang, Hunan, China
摘要：
The treatment of wastewater containing middle or low concentration of phenol solution is a troublesome environment problem. In this study, tea was modified by FeCl<inf>3</inf>,AlCl<inf>3</inf>,FeSO<inf>4</inf>,and we studied the adsorption performance of modified waste tea leaves on phenol-containing waste water. FeCl3 is the best modifier, the second one is FeSO4, and the last is AlCl3. And the effects of the initial concentration, pH value, adsorption time, particle size, and temperature on adsorption capacity were investigated. Langmuir isotherm model was better to describe the isothermal adsorption of phenol. ©2014, Journal of Chemical and Pharmaceutical Research. All rights reserved.
语种：
英文
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基于DGGE技术的茯砖茶发花过程细菌群变化分析
作者：
刘石泉;胡治远;赵运林
期刊：
生态学报 ,2014年34(11):3007-3015 ISSN：1000-0933
通讯作者：
Zhao, Y.
作者机构：
[刘石泉] 湖南农业大学生物科学与技术学院;[胡治远; 赵运林] 湖南城市学院化学与环境工程学院
通讯机构：
College of Chemistry and Environmental Engineering, Hunan City University, China
关键词：
茯砖茶;发花发酵;变性梯度凝胶电泳(DGGE);细菌群
摘要：
变性梯度胶电泳是当前微生物生态学研究重要技术之一。为研究茯砖茶发花过程中细菌群落结构和种类,对发花过程中不同时段细菌16S rDNA的V3可变区扩增,经变性梯度胶电泳(DGGE)后、对细菌DGGE条带进行克隆、测序和比对。结果表明,在发花过程的第0—4天、6—8天、10—14天茯砖茶发花存在3个差异较大的细菌优势种群结构的演变;从16SrDNA的V3可变区比对结果证明黑毛茶发花过程中有短波单胞菌属、诺卡氏菌属、新鞘脂菌属、突那梭菌属、韦龙氏假单胞菌属、乳杆菌属、克雷伯氏菌属以及不可培养ε-变形菌、腐败螺旋菌属、粘球菌属、根瘤菌属和6种未知分类地位的不可培养细菌,说明采用DGGE指纹图谱能更系统、更真实地反映茯砖茶发花发酵过程中细菌群落结构和多样性变化。
语种：
中文
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Electrochemical Performance of alpha-LiVOPO4/Carbon Composite Material Synthesized by Sol Gel Method
作者：
Tang, Anping* ;Shen, Jie;Hu, Yongjun;Xu, Guorong;He, Donghua;...
期刊：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY ,2014年161(1):A10-A13 ISSN：0013-4651
通讯作者：
Tang, Anping
作者机构：
[Shen, Jie; Peng, Ronghua; Yi, Qingfeng; Tang, Anping; He, Donghua; Xu, Guorong] Hunan Univ Sci & Technol, Sch Chem & Chem Engn, Xiangtan 411201, Peoples R China.;[Peng, Ronghua; Yi, Qingfeng; Tang, Anping; Xu, Guorong] Hunan Univ Sci & Technol, Minist Educ, Key Lab Theoret Chem & Mol Simulat, Xiangtan 411201, Peoples R China.;[Hu, Yongjun] Hunan City Univ, Dept Chem, Yiyang 413000, Peoples R China.
通讯机构：
[Tang, Anping] H;Hunan Univ Sci & Technol, Sch Chem & Chem Engn, Xiangtan 411201, Peoples R China.
摘要：
LiVOPO<inf>4</inf>/carbon composite materials were prepared at amoderate temperature of 400°C by oxalic acid assisted sol-gel technique and acetylene black acting as a carbon source. The as synthesized composite materials were characterized by XRD, SEM, galvanostatic charge-discharge and CV measurements. When tested at 0.1 C rate for Li ion insertion properties, α-LiVOPO <inf>4</inf>/ carbon composite material exhibits good cycle capability with an average capacity degradation of just 0.05 mAh/g per cycle. Additionally, when the various discharge rates were applied progressively for each of ten cycles, it shows excellent rate capability with initial discharge capacities of 138 mAh/g (0.1 C), 134 mAh/g (0.2 C), 108 mAh/g (0.5 C) and 83 mAh/g (1 C), respectively, indicating that carbon modification could enhance the electronic conductivity of LiVOPO<inf>4</inf>. ©2013 The Electrochemical Society.
语种：
英文
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Hydrogen storage behavior of 2LiBH4/MgH2 composites improved by the catalysis of CoNiB nanoparticles
作者：
Zhao, Yanping;Ding, Liangzhong* ;Zhong, Tongsheng;Yuan, Huatang;Jiao, Lifang
期刊：
International Journal of Hydrogen Energy ,2014年39(21):11055-11060 ISSN：0360-3199
通讯作者：
Ding, Liangzhong
作者机构：
[Jiao, Lifang; Yuan, Huatang; Zhao, Yanping] Nankai Univ, Inst New Energy Mat Chem, Collaborat Innovat Ctr Chem Sci & Engn Tianjin, Key Lab Adv Energy Mat Chem MOE,Tianjin Key Lab M, Tianjin 300071, Peoples R China.;[Zhong, Tongsheng; Ding, Liangzhong] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.
通讯机构：
[Ding, Liangzhong] H;Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.
关键词：
LiBH4;Hydrogen storage;Catalysis;CoNiB
摘要：
2LiBH(4)/MgH2 system is a representative and promising reactive hydride composite for hydrogen storage. However, the high desorption temperature and sluggish desorption kinetics hamper its practical application. In our present report, we successfully introduce CoNiB nanoparticles as catalysts to improve the dehydrogenation performances of the 2LiBH(4)/MgH2 composite. The sample with CoNiB additives shows a significant desorption property. Temperature programmed desorption (TPD) measurement demonstrates that the peak decomposition temperatures of MgH2 and LiBH4 are lowered to be 315 degrees C and 417 degrees C for the CoNiB-doped 2LiBH(4)/MgH2. Isothermal dehydrogenation analysis demonstrates that approximately 10.2 wt% hydrogen can be released within 360 min at 400 degrees C. In addition, this study gives a preliminary evidence for understanding the CoNiB catalytic mechanism of 2LiBH(4)/MgH2 Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
语种：
英文
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黑茶的电化学指纹图谱研究
作者：
谢丹;龙立平;王姣亮;梁明
期刊：
湖南城市学院学报(自然科学版) ,2014年23(1):36-39 ISSN：1672-7304
作者机构：
湖南城市学院化学与环境工学院,湖南益阳,413000;[谢丹; 龙立平; 梁明; 王姣亮] 湖南城市学院
关键词：
振荡反应;黑茶;碘酸钾
摘要：
采用振荡技术,研究了黑茶-丙酮-溴酸钾-硫酸锰-硫酸的振荡反应新体系的振荡图谱.测定了不同浓度,不同温度下黑茶的振荡反应图谱,考察了添加物碘酸钾对振荡行为的影响,并探索了黑茶的最佳饮用条件.实验结果表明:黑茶振荡体系诱导期表观活化能为Ein=96.919 kJ/mol,振荡周期平均活化能为Ep=64.275 kJ/mol,其最佳饮用条件为浸泡温度100℃、浸泡时间8 min、采用蒸煮茶叶或泡黑茶粉末的方式.这为黑茶制备黑茶饮料以及将黑茶入药的研究提供了一定的指导意义.
语种：
中文
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Water extract of the fungi from Fuzhuan brick tea improves the beneficial function on inhibiting fat deposition
作者：
Peng, Yuxuan;Xiong, Zhe;Li, Juan;Huang, Jian-an;Teng, Cuiqin;...
期刊：
International Journal of Food Sciences and Nutrition ,2014年65(5):610-614 ISSN：0963-7486
通讯作者：
Gong, Yushun
作者机构：
[Peng, Yuxuan; Huang, Jian-an; Gong, Yushun; Li, Juan] Hunan Agr Univ, Minist Educ, Key Lab Tea Sci, Changsha 410128, Hunan, Peoples R China.;[Peng, Yuxuan] Hunan City Univ, Sch Chem & Environm Engn, Yiyang, Peoples R China.;[Xiong, Zhe; Teng, Cuiqin; Liu, Zhonghua] Hunan Agr Univ, Natl Res Ctr Engn Technol Utilizat Bot Funct Ingr, Changsha 410128, Hunan, Peoples R China.;[Liu, Zhonghua] Hunan Agr Univ, Collaborat Innovat Ctr Utilizat Funct Ingredients, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Gong, Yushun] H;Hunan Agr Univ, Minist Educ, Key Lab Tea Sci, Changsha 410128, Hunan, Peoples R China.
关键词：
3T3-L1 preadipocyte;Caenorhabditis elegans;Eurotium cristatum;Fuzhuan brick tea;fat deposition
摘要：
Fuzhuan brick tea (FBT) is traditionally consumed by the ethnic group in the border region of northwest China. The unique yellow fungal (Eurotium cristatum) growth phase is considered to be the key process point in the manufacture of the brick tea. The fungi from FBT are not only strongly correlated to the quality of brick tea, but also have the potential function of preventing obesity. The water extract of fungi (100 μg/mL) can significantly inhibit fat deposition in 3T3-L1 adipocyte and Caenorhabditis elegans. Furthermore, the inhibition of 3T3-L1 adipocyte formation was not due to the suppression on cell viability. © 2014 Informa UK Ltd. All rights reserved.
语种：
英文
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Fabrication of a three-dimensional BiOBr/BiOI photocatalyst with enhanced visible light photocatalytic performance
作者：
Lin, Li;Huang, Manhong;Long, Liping;Sun, Zhe;Zheng, Wei;...
期刊：
Ceramics International ,2014年40(8):11493-11501 ISSN：0272-8842
通讯作者：
Chen, Donghui
作者机构：
[Chen, Donghui; Zheng, Wei; Huang, Manhong; Lin, Li; Sun, Zhe] Donghua Univ, Sch Environm Sci & Engn, Shanghai 201620, Peoples R China.;[Long, Liping; Lin, Li] Hunan City Univ, Sch Chem & Environm Engn, Yiyang 413000, Peoples R China.
通讯机构：
[Chen, Donghui] D;Donghua Univ, Sch Environm Sci & Engn, Shanghai 201620, Peoples R China.
关键词：
BiOBr/BiOI;Photocatalyst;Rhodamine B;Tetracycline;Visible light
摘要：
Three-dimensional (3D) BiOBr/BiOI hierarchical microsphere photocatalysts were successfully synthesized via a facile one-pot solvothermal method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), UV-vis diffuse reflectance spectroscopy (UV-vis DRS) and N2 adsorption-desorption isotherms. The photocatalytic activity was evaluated by the photocatalytic degradation of Rhodamine B (RhB) and tetracycline (TC) under visible light irradiation (λ>420 nm). The 50% BiOBr/BiOI composite showed a higher photocatalytic removal efficiency of RhB and TC than 10% and 90% BiOBr/BiOI composites. RhB (C0=15 mg/L) was degraded completely within 40 min and over 83% of TC (C0= 40 mg/L) was degraded within 50 min using a catalyst quantity of 0.4 g/L of 50% BiOBr/BiOI. The enhanced photocatalytic activity of the 50:50 composite was attributed to effective separation of photogenerated carriers and the balance between enhanced visible light absorption and decreased valence band (VB) edge potential. © 2014 Elsevier Ltd and Techna Group S.r.l.
语种：
英文
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Novel photocatalysts of fly ash cenospheres supported BiOBr hierarchical microspheres with high photocatalytic performance
作者：
Lin, Li;Huang, Manhong* ;Long, Liping;Chen, Donghui
期刊：
Journal of Alloys and Compounds ,2014年615:929-932 ISSN：0925-8388
通讯作者：
Huang, Manhong
作者机构：
[Chen, Donghui; Huang, Manhong; Lin, Li] Donghua Univ, Sch Environm Sci & Engn, Shanghai 201620, Peoples R China.;[Long, Liping; Lin, Li] Hunan City Univ, Sch Chem & Environm Engn, Yiyang 413000, Peoples R China.;[Chen, Donghui] Shanghai Inst Technol, Shanghai 200235, Peoples R China.
通讯机构：
[Huang, Manhong] D;Donghua Univ, Sch Environm Sci & Engn, Shanghai 201620, Peoples R China.
关键词：
BiOBr;Fly-ash cenospheres;Photocatalytic;Visible light irradiation
摘要：
A novel fly-ash cenospheres (FACs) supported BiOBr hierarchical microspheres were successfully prepared via a facile one-pot solvothermal method. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), UV-visible diffuse reflectance spectroscopy (DRS) and N<inf>2</inf> adsorption-desorption isotherms. The results indicated that polyvinylpyrrolidone (PVP) facilitated the loading of BiOBr hierarchical microspheres. Based on the photodegradation tests under visible light irradiation (λ>420 nm), the photocatalytic property of PVP/BiOBr/FACs photocatalysts was superior to that of BiOBr/FACs. ©2014 Elsevier B.V. All rights reserved.
语种：
英文
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聚氨酯弹性体的改性及阻尼性能
作者：
朱耀东;贺国文;李衡峰;陈俊
期刊：
功能材料 ,2014年45(21):21006-21010 ISSN：1001-9731
通讯作者：
Li, Heng-Feng
作者机构：
[李衡峰; 贺国文; 朱耀东; 陈俊] School of Materials Science and Engineering, Central South University, Changsha , China;[朱耀东; 贺国文] College of Chemical and Environmental Engineering, Hunan City University, Yiyang , China
通讯机构：
[Li, H.-F.] S;School of Materials Science and Engineering, Central South University, Changsha, China
关键词：
聚氨酯弹性体;改性;阻尼性能;扩链剂;悬挂链
摘要：
将两种含悬挂链的二元醇扩链剂(受阻酚二醇(TMP-derived diol)和2,2-2,2-二羟甲基丙酸卞基酯(BHP))和选用的单甘酯(GMS)分别与4,4-二苯醚二胺(ODA)以不同摩尔比混合扩链合成新型聚氨酯弹性体。用红外(FT-IR)、热分析(DSC)、动态力学性能(DMA)来表征二醇扩链剂对聚氨酯弹性体的微相分离及阻尼性能的影响。研究结果表明,悬挂链中基团的体积越大,阻碍作用越强;受阻酚二醇的引入使聚氨酯体系的玻璃化温度升高,两相相容性增加,而GMS、BHP扩链反而使聚氨酯体系玻璃化温度降低,相分离增加;悬挂的多碳支链及受阻酚基团有利于抬升在高于玻璃化温度一定区域的阻尼值。
语种：
中文
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Nitrite reductase genes as functional markers to investigate diversity of denitrifying bacteria during agricultural waste composting
作者：
Chen, Yaoning* ;Zhou, Wei;Li, Yuanping;Zhang, Jiachao;Zeng, Guangming;...
期刊：
Applied Microbiology and Biotechnology ,2014年98(9):4233-4243 ISSN：0175-7598
通讯作者：
Chen, Yaoning
作者机构：
[Chen, Yaoning; Huang, Aizhi; Zeng, Guangming; Huang, Jingxia; Zhou, Wei; Li, Yuanping] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.;[Chen, Yaoning; Huang, Aizhi; Zeng, Guangming; Huang, Jingxia; Zhou, Wei; Li, Yuanping] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.;[Li, Yuanping] Hunan City Univ, Coll Chem & Environm Engn, Yiyang 413000, Hunan, Peoples R China.;[Zhang, Jiachao] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.
通讯机构：
[Chen, Yaoning] H;Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
关键词：
Composting;PCR-DGGE;Denitrifying bacteria;RDA;Phylogenetic analysis
摘要：
The purpose of this study was to investigate the diversity of denitrifier community during agricultural waste composting. The diversity and dynamics of the denitrifying genes (nirK and nirS) were determined using polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE). Relationships between physico-chemical parameters and denitrifying genes structures were simultaneously evaluated by redundancy analysis (RDA). Phylogenetic analysis indicated that nirK clones grouped into six clusters and nirS clones into two major clusters, respectively. The results showed a very high diversity of nir gene sequences within composting samples. RDA showed that the nirK and nirS gene structures were significantly related to pH and pile temperature (P < 0.05). Significant amounts of the variation (49.2 and 38.3 % for nirK and nirS genes, respectively) were explained by pH and pile temperature, suggesting that those two parameters were the most likely ones to influence, or be influenced by the denitrifiers harboring nirK and nirS genes. © 2014 Springer-Verlag.
语种：
英文
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