Issue 45, 2019

Enhanced photocatalytic performance of ZnTi-LDHs with morphology control

Abstract

ZnTi-LDHs with different morphologies were successfully fabricated via a surfactant-assisted hydrothermal method. With the help of surfactants, we focus on exploring the morphology control of ZnTi-LDHs, and the promotion effects on their photocatalytic performances. Experimental results showed that the type of surfactant affected the morphology of ZnTi-LDHs. With the help of an anionic surfactant (sodium dodecyl sulfate), ZnTi-LDHs with flower-like structures were obtained by the self-assembly of sheets. Triblock copolymers (P-123) led to the formation of ZnTi-LDH particles assembled together. Both a cationic surfactant (CTAB) and non-ionic surfactant (PVP) have less guiding effect on the growth of ZnTi-LDHs. The self-assembled ZnTi-LDH particles exhibit excellent photocatalytic performances in methyl orange degradation when P-123 is added into the solution as a surfactant. The formation mechanism of ZnTi-LDHs with different surfactants has been proposed. This study proposes a common mechanism of surfactants in the formation of ZnTi-LDHs, which is instructive for the further design of LDHs with controlled morphology.

Graphical abstract: Enhanced photocatalytic performance of ZnTi-LDHs with morphology control

Supplementary files

Article information

Article type
Paper
Submitted
06 Sep 2019
Accepted
16 Oct 2019
First published
16 Oct 2019

CrystEngComm, 2019,21, 7025-7031

Enhanced photocatalytic performance of ZnTi-LDHs with morphology control

P. Fang, Z. Wang and W. Wang, CrystEngComm, 2019, 21, 7025 DOI: 10.1039/C9CE01406C

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