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柠檬酸钠改性的活性炭对铜离子的吸附性能

仲凯凯 黄张根 韩小金 张昌鸣

新型炭材料2013,Vol.28Issue(2):156-160,5.
新型炭材料2013,Vol.28Issue(2):156-160,5.

柠檬酸钠改性的活性炭对铜离子的吸附性能

Modification of activated carbon using sodium citrate and its effect on the adsorption of copper ions

仲凯凯 1黄张根 1韩小金 1张昌鸣1

作者信息

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摘要

Abstract

Activated carbon (AC) was modified with sodium citrate at a concentration of 5-15% by impregnation to develop a new type of adsorbent, named (Nχ-AC where x is the concentration. Their pore structures and surface chemical properties were characterized by N2 adsorption, Boehm titration and FT-IR. The adsorption of copper ions by the (Nχ-AC and the regenerated ones were investigated through a static adsorption method. Results showed that the carboxyl content had a great influence in the adsorption properties of (Nχ-AC for copper with the adsorption capacity of N15-AC being 1. 76 times higher than the parent AC, which was higher than those of the N5-AC. and the (N10-AC. The adsorption capacity of the regenerated N15-AC s for copper can reach 98.2 and 95. 9% of the original N15-AC for the first and second regenerations respectively.

关键词

活性炭/吸附//柠檬酸钠/改性

Key words

Activated carbon/ Adsorption/ Copper/ Sodium citrate/ Modification

分类

化学化工

引用本文复制引用

仲凯凯,黄张根,韩小金,张昌鸣..柠檬酸钠改性的活性炭对铜离子的吸附性能[J].新型炭材料,2013,28(2):156-160,5.

基金项目

国家科技部自主研究课题(Y1BWLF1391). (Y1BWLF1391)

新型炭材料

OA北大核心CSCDCSTPCDSCI

1007-8827

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