Strong selectivity and high capacity in the adsorption of As (V) from wastewater by glycine-modified Fe/Cu-layered double hydroxides

Xiaofeng Shi, Le Kang, Junmao Hong, Chao Wang, Renbo Wei, Nithesh Naik, Zhanhu Guo

Research output: Contribution to journalArticlepeer-review

Abstract

A series of glycine-modified Fe/Cu-LDH (GFC) adsorbents were prepared. With a Fe/Cu mole ratio of 1:1, the adsorption of GFC1 for As (V) was characterized by its strong selectivity and high adsorption capacity. The adsorption of GFC1 for As (V) followed the Langmuir isotherms model and pseudo-second-order kinetics model, achieving a saturated adsorption capacity of 808.71 mg g−1 and reaching equilibrium after 60 min. The regeneration of GFC1 was achieved under the assistance of an electrochemical device. Compared with cycle 1, the adsorption capacity in cycle 5 was decreased by about 13.53%. Based on these advantages, GFC1 can be regarded as a possible candidate for arsenic adsorption from wastewater with a high commercial value.

Original languageEnglish
Article number158956
JournalJournal of Alloys and Compounds
Volume865
DOIs
Publication statusPublished - 05-06-2021

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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