A novel Zn(II) dithiocarbamate/ZnS nanocomposite for highly efficient Cr6+ removal from aqueous solutions

Li-Ning Liu; Jian-Guo Dai; Tie-Jun Zhao; Si-Yao Guo; Dong-Shuai Hou; Peng Zhang; Jun Shang; Shen Wang; Song Han

doi:10.1039/C7RA04259K

A novel Zn(ii) dithiocarbamate/ZnS nanocomposite for highly efficient Cr⁶⁺ removal from aqueous solutions

Li-Ning Liu,^a Jian-Guo Dai,^c Tie-Jun Zhao,^b Si-Yao Guo,

*^b Dong-Shuai Hou,^b Peng Zhang,^b Jun Shang,^b Shen Wang^a and Song Han*^a

Author affiliations

* Corresponding authors

^a College of Forestry, Northeast Forestry University, Harbin 150040, China

^b Cooperative Innovation Center of Engineering Construction and Safety in Shandong Blue Economic Zone, Qingdao Technological University, Qingdao, China
E-mail: siyaoguo@126.com

^c Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, China

Abstract

A simple one-step method was designed for the first time to produce a novel Zn(II) dithiocarbamate/ZnS nanocomposite. The developed Zn(II) dithiocarbamate/ZnS nanocomposite was found to exhibit outstanding performance on Cr⁶⁺ removal from aqueous solutions and the removal rate could reach more than 98% in just a few seconds. Various influencing factors such as the addition quantity, pH value and reaction temperature were investigated in order to determine the optimal removal conditions. It was shown that the Cr⁶⁺ removal ability of the Zn(II) dithiocarbamate/ZnS nanocomposite remained high at almost all the pH values and the degradation rate increased gradually with the reaction temperature up to 323 K. Compared to the traditional catalysts, which usually involve a complex production process with a high cost and a low degradation rate, the novel Zn(II) dithiocarbamate/ZnS nanocomposite has great potential in applications for wastewater treatment.

Article information

https://doi.org/10.1039/C7RA04259K

Article type

Paper

Submitted

15 Apr 2017

Accepted

15 Jun 2017

First published

12 Jul 2017

This article is Open Access

Download Citation

RSC Adv., 2017,7, 35075-35085

Permissions

Request permissions

A novel Zn(II) dithiocarbamate/ZnS nanocomposite for highly efficient Cr⁶⁺ removal from aqueous solutions

L. Liu, J. Dai, T. Zhao, S. Guo, D. Hou, P. Zhang, J. Shang, S. Wang and S. Han, RSC Adv., 2017, 7, 35075 DOI: 10.1039/C7RA04259K

This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. You can use material from this article in other publications without requesting further permissions from the RSC, provided that the correct acknowledgement is given.

RSC Advances