Highly effective removal of Cu(II) in aqueous solution by using mesoporous TiO2-Reference-Cited by-同舟云学术

Highly effective removal of Cu(II) in aqueous solution by using mesoporous TiO2

Published:2019-09-01 Issue:5 Volume:80 Page:884-891
ISSN:0273-1223
Container-title:Water Science and Technology
language:en
Short-container-title:

Author:

Chen Daying¹,Tu Nasi¹,Si Changkun²,Yin Meilin³,Wang Xiaohui¹

Affiliation:

1. Beijing Engineering Research Center of Environmental Material for Water Purification, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China

2. State Key Laboratory of Heavy Oil Processing and Department of Materials Science and Engineering, China University of Petroleum, Beijing 102249, China

3. School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China

Abstract

Abstract Mesoporous TiO2 has been prepared by a brief and simple sol–gel processing and applied for the removal of Cu(II) from aqueous solution. The adsorption behavior of mesoporous TiO2 for Cu(II) was investigated using batch experiments. Results showed that the pseudo-second-order model and Langmuir isotherm were more accurate to describe the kinetics process and adsorption isotherm. Mesoporous TiO2 adsorbent displayed excellent Cu(II) adsorption efficiency (195.52mg g−1). The thermodynamic parameters showed that the adsorption was spontaneous and endothermic. It was also found that mesoporous TiO2 could be used at least seven times without obvious loss of its original adsorption efficiency. Therefore, the obtained mesoporous TiO2 could be employed as an effective and low-cost adsorbent for removal of Cu(II) from contaminated effluents.

Publisher

IWA Publishing

Subject

Water Science and Technology,Environmental Engineering

Link

http://iwaponline.com/wst/article-pdf/80/5/884/626296/wst080050884.pdf

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