| Literature DB >> 27387001 |
Hui-Duo Yang1, Yun-Peng Zhao1, Shi-Feng Li2, Xing Fan1, Xian-Yong Wei1, Zhi-Min Zong1.
Abstract
In this study, Zn/Al-layered double hydroxides (Zn/Al-LDHs) were synthesized by a co-precipitation method and characterized with X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy. Then the hexavalent chromium Cr(VI) adsorption experiments on calcined Zn/Al-LDHs were carried out to analyze the effects of pH, temperature, adsorption time, initial Cr(VI) concentration and adsorbent dosage on the removal of Cr(VI) from aqueous solutions. The maximum adsorption capacity for Cr(VI) on calcined Zn/Al-LDHs under optimal conditions was found to be over 120 mg/g. The kinetic and isotherm of Cr(VI) adsorption on calcined Zn/Al-LDHs can be described with the pseudo-second-order kinetic model and Langmuir isotherm, respectively.Entities:
Mesh：
Substances：
Year: 2016 PMID： 27387001 DOI： 10.2166/wst.2016.204
Source DB: PubMed Journal: Water Sci Technol ISSN： 0273-1223 Impact factor: 1.915