Citrate-modified Mg-Al layered double hydroxides for efficient removal of lead from water

被引：23

作者：

Chen, Weiqiang ^{[1
]}

Xing, Jinlu ^{[1
]}

Lu, Zhanhui ^{[1
]}

Wang, Jian ^{[3
]}

Yu, Shujun ^{[3
]}

Yao, Wen ^{[3
]}

Asiri, Abdullah M. ^{[2
]}

Alamry, Khalid A. ^{[2
]}

Wang, Xiangke ^{[2
,3
]}

Wang, Suhua ^{[2
,3
]}

机构：

[1] North China Elect Power Univ, Sch Math & Phys Sci, Beijing 102206, Peoples R China

[2] King Abdulaziz Univ, Fac Sci, Chem Dept, Jeddah 21589, Saudi Arabia

[3] North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China

来源：

ENVIRONMENTAL CHEMISTRY LETTERS | 2018年 / 16卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Lead ion removal; Citric modified; Layered double hydroxides; Adsorption kinetic equation; Wastewater; Layer insertion; THIN-FILM; ADSORPTION; ADSORBENT; PB2+; LDH; MANGANESE; CADMIUM; COPPER; SOILS; CU2+;

D O I：

10.1007/s10311-017-0692-5

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Lead contamination is a threat for the environment and human health due to lead non-degradability and non-detoxification. Therefore, methods for efficient removal of lead from contaminated waters are needed. Here, a novel material has been synthesised by surface functionalization of magnesium-aluminum layered double hydroxide with citrate (citric-LDH) and applied to the efficient removal of lead from aqueous solutions. Effects of ionic strength and temperature on the adsorption have been evaluated. Results show that lead adsorption by citric-LDH can be used for lead pollution cleanup. Adsorption kinetics were simulated using a revised model. Simulation results show that citric-LDH adsorb lead ions through a more efficient and time-dependent pathway, leading to the rapid and efficient removal of lead ions.

引用

页码：561 / 567

页数：7

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