Synthesis of novel aminated cellulose microsphere adsorbent for   efficient Cr(VI) removal

doi:10.1016/j.radphyschem.2016.03.019

CORC > 北京大学 > 化学与分子工程学院

	Synthesis of novel aminated cellulose microsphere adsorbent for efficient Cr(VI) removal
	Yu, Tianlin ; Liu, Siqi ; Xu, Min ; Peng, Jing ; Li, Jiuqiang ; Zhai, Maolin
刊名	RADIATION PHYSICS AND CHEMISTRY
	2016
关键词	Cellulose Vinylbenzyl chloride Radiation-induced graft polymerization Cr(VI) adsorption HEXAVALENT CHROMIUM REMOVAL AQUEOUS-SOLUTION VINYLBENZYL CHLORIDE ACTIVATED CARBON LOW-COST ADSORPTION WATER REDUCTION WASTE IRON
DOI	10.1016/j.radphyschem.2016.03.019
英文摘要	A novel aminated cellulose microsphere adsorbent (CVN) was successfully prepared by radiation-induced graft polymerization of vinylbenzyl chloride (VBC) onto cellulose microsphere (CMS), followed by amination. Micro-FTIR, XPS and SEM confirmed the structure of CVN. The adsorption behavior of Cr(VI) onto CVN from solution was well fitted by the pseudo-second order kinetic model. The isothermal adsorption of Cr(VI) was observed at pH 4.68 with adsorption capacity of 129 mg/g in accordance with Langmuir thermal model, and the removal of Cr(VI) from solution could be 91% at a low amount (20 mg) of adsorbent. The best pH for adsorption of Cr(VI) was nearly 3.08, and with the increasing of temperature, the adsorption capacity of Cr(VI) increased. XPS analysis confirmed the adsorption mechanism of Cr(VI) was ion-exchange mechanism, while common co-ions such as Na+, Mg2+, Cu2+, Ca2+, Zn2+, Ni2+, Cl-, NO3- has no significant effect on the adsorption capacity of Cr(VI), and the Cr(VI) removal of 80% still could be obtained compared with that of fresh CVN adsorbent. Finally, spent CVN could be regenerated under 2 mol/L NaCl. The work indicated that aminated cellulose adsorbent could be prepared successfully by radiation-induced grafting and amination and CVN is a promising bio-adsorbent in the removing Cr(VI) from waste water. (C) 2016 Elsevier Ltd. All rights reserved.; National Natural Science Foundation of China (NNSFC) [U1430324]; SCI(E); ARTICLE; jpeng@pku.edu.cn; mlzhai@pku.edu.cn; 94-101; 125
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/491814]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Yu, Tianlin,Liu, Siqi,Xu, Min,et al. Synthesis of novel aminated cellulose microsphere adsorbent for efficient Cr(VI) removal[J]. RADIATION PHYSICS AND CHEMISTRY,2016.
APA	Yu, Tianlin,Liu, Siqi,Xu, Min,Peng, Jing,Li, Jiuqiang,&Zhai, Maolin.(2016).Synthesis of novel aminated cellulose microsphere adsorbent for efficient Cr(VI) removal.RADIATION PHYSICS AND CHEMISTRY.
MLA	Yu, Tianlin,et al."Synthesis of novel aminated cellulose microsphere adsorbent for efficient Cr(VI) removal".RADIATION PHYSICS AND CHEMISTRY (2016).