Issue 13, 2017

Integration of nanosized ZIF-8 particles onto mesoporous TiO2 nanobeads for enhanced photocatalytic activity

Abstract

Hexavalent chromium, or Cr(VI), is a highly toxic contaminant in industrial wastewater that needs to be treated before being released. A Zeolitic Imidazolate Framework ZIF-8 was assembled on the surface of mesoporous TiO2 beads to achieve a TiO2/ZIF-8 heterostructure for photocatalytic reduction of Cr(VI). The TiO2/ZIF-8 nanobeads exhibited remarkable photocatalytic activity of Cr(VI) reduction relative to that of pristine TiO2 nanobeads attributed to the strong Cr(VI) adsorbing properties of ZIF-8 and improved charge transfer efficiency of TiO2/ZIF-8. This work illustrates a strategy for enhanced photocatalysis by modifying the metal oxide catalyst with high surface area Zeolitic Imidazolate Framework to improve adsorption and charge transfer efficiency.

Graphical abstract: Integration of nanosized ZIF-8 particles onto mesoporous TiO2 nanobeads for enhanced photocatalytic activity

Supplementary files

Article information

Article type
Paper
Submitted
16 12 2016
Accepted
17 1 2017
First published
25 1 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 8004-8010

Integration of nanosized ZIF-8 particles onto mesoporous TiO2 nanobeads for enhanced photocatalytic activity

Q. Liu, B. Zhou, M. Xu and G. Mao, RSC Adv., 2017, 7, 8004 DOI: 10.1039/C6RA28277F

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