SEPARATION OF CHROMIUM (VI) FROM AQUEOUS SOLUTIONS BY CELLULOSE MODIFIED WITH D-GLUCOSE AND QUATERNARY AMMONIUM GROUPS

被引：0
|
作者：
Zhou, Yanmei [1 ]
Jin, Qiang [1 ]
Zhu, Tianwei [1 ]
Zhang, Qingyou [1 ]
Ma, Tongsen [1 ]
机构：
[1] Henan Univ, Coll Chem & Chem Engn, Inst Environm & Analyt Sci, Kaifeng 475004, Henan, Peoples R China
来源：
CELLULOSE CHEMISTRY AND TECHNOLOGY | 2012年 / 46卷 / 5-6期
关键词：
chromium (VI); modified cellulose; D-glucose; trimethylammonium chloride; SOLID-PHASE EXTRACTION; ADSORPTION; REMOVAL; BEHAVIOR; SORBENT; CU(II); RESINS; BEADS;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; TS [轻工业、手工业、生活服务业];
学科分类号：
0805 ; 080502 ; 0822 ;
摘要：
A novel method for D-glucose (D-Glu) and trimethylammonium chloride immobilization onto the surface of cellulose powder was studied. Cellulose powder was grafted with vinyl monomer glycidyl methacrylate (GMA), using ceric ammonium nitrate as an initiator, and further derived with quaternary ammonium groups to build the D-GluN(+)-type cellulose absorbent (Cell-g-GMA-D-GluN(+)). Epoxy cellulose was found to contain 5.48 mmol/g epoxy groups. The adsorption process of modified cellulose was described by the Langmuir model of adsorption well, the maximum adsorption capacity of chromium (VI) reaching a value of 71.79 mg/g. Adsorption desorption tests of the D-GluN(+)-type cellulose derivatives showed a good reproducibility of the adsorbent, so that the adsorbent could be reused for at least six times.
引用
收藏
页码：319 / 329
页数：11
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