Enhanced removal of Eriochrome Black T in wastewater by zirconium-based MOF/graphene oxide-Reference-Cited by-同舟云学术

Enhanced removal of Eriochrome Black T in wastewater by zirconium-based MOF/graphene oxide

Published:2020-02 Issue:2 Volume:98 Page:90-97
ISSN:0008-4042
Container-title:Canadian Journal of Chemistry
language:en
Short-container-title:Can. J. Chem.

Author:

Bu Jiaqi¹,Yuan Lu¹²³⁴⁵,Ren Yanling¹,Lv Yuexin¹,Meng Yong¹²³⁴⁵,Peng Xin¹²³⁴⁵

Affiliation:

1. College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, P.R. China.

2. National & Local Joint Engineering Laboratory for New Petrochemical Materials and Fine Utilization of Resources, Changsha 410081, P.R. China.

3. Key Laboratory of Sustainable Resources Processing and Advanced Materials, Hunan Province College, Changsha 410081, P.R. China.

4. Research Center of Resource Recycling Complex Technology, Hunan Normal University, Changsha 410081, P.R. China.

5. Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Hunan Normal University, Ministry of Education, Changsha 410081, P.R. China.

Abstract

The zirconium-based MOF/graphene oxide (UiO-66-NH2/GO) composites were prepared by ultrasonic dispersing different amounts of graphene oxide (GO) in a well-dissolved zirconium tetrachloride/H2BDC-NH2 mixture, obtaining 2 wt% (UiO-66-NH2/GO-1), 5 wt% (UiO-66-NH2/GO-2), and 10 wt% (UiO-66-NH2/GO-3) GO composites. The products were characterized by XRD, FTIR, SEM, BET, Raman, UV, XPS, and Zeta potential. Adsorption experiments on simulated Eriochrome Black T (EBT) printing and dyeing wastewater were carried out using UiO-66-NH2/GO, and the optimal conditions for adsorption were obtained by exploring the effects of initial EBT concentration, time, pH, and salt ionic strength. Adsorption isotherms, kinetics, mechanism, and regeneration were also researched. The adsorption behavior was consistent with the Langmuir isotherm and fully compliant with pseudo secondary dynamics model. The adsorption capacity of UiO-66-NH2/GO-2 was found to be the highest of the three products, which was 263.158 mg/g. Therefore, the UiO-66-NH2/GO-2 composite was considered to be an excellent adsorbent for the adsorption of EBT from organic dye wastewater.

Publisher

Canadian Science Publishing

Subject

Organic Chemistry,General Chemistry,Catalysis

Link

http://www.nrcresearchpress.com/doi/pdf/10.1139/cjc-2019-0368

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