Environmental Chemistry Letters

, Volume 16, Issue 2, pp 561–567 | Cite as

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

  • Weiqiang Chen
  • Jinlu Xing
  • Zhanhui Lu
  • Jian Wang
  • Shujun Yu
  • Wen Yao
  • Abdullah M. Asiri
  • Khalid A. Alamry
  • Xiangke Wang
  • Suhua Wang
Original Paper


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.


Lead ion removal Citric modified Layered double hydroxides Adsorption kinetic equation Wastewater Layer insertion 



This work was supported by the National Natural Science Foundation of China (91326202, 21577032), the Fundamental Research Funds for the Central Universities (2016ZZD06, JB2016166).


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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Mathematics and Physical ScienceNorth China Electric Power UniversityBeijingPeople’s Republic of China
  2. 2.Chemistry Department, Faculty of ScienceKing Abdulaziz UniversityJeddahSaudi Arabia
  3. 3.College of Environmental Science and EngineeringNorth China Electric Power UniversityBeijingPeople’s Republic of China

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