1. Citrate-modified Mg-Al layered double hydroxides for efficient removal of lead from water.
- Author
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Chen, Weiqiang, Xing, Jinlu, Lu, Zhanhui, Wang, Jian, Yu, Shujun, Yao, Wen, Asiri, Abdullah M., Alamry, Khalid A., Wang, Xiangke, and Wang, Suhua
- Subjects
LAYERED double hydroxides ,LEAD contamination in copper ,ADSORPTION kinetics ,TEMPERATURE effect ,ALUMINUM ,ADSORBATES - Abstract
Abstract: 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. [ABSTRACT FROM AUTHOR]
- Published
- 2018
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