Enhanced photocatalytic performance of ZnTi-LDHs with morphology control. Issue 45 (1st November 2019)

• Record Type: Journal Article
• Authors: Fang, Pengfei; Wang, Zhongchuan; Wang, Weiwei
• Is Part Of: CrystEngComm. Volume 21:Issue 45(2019)
• Page Start: 7025
• Page End: 7031
• Publication Date: 2019-11-01
• Subjects: Crystals -- Periodicals; Crystal growth -- Periodicals; Crystallography -- Periodicals; Cristaux -- Périodiques; Cristaux -- Croissance -- Périodiques; Cristallographie -- Périodiques; 548
• DOI: 10.1039/c9ce01406c
• Languages: English
• ISSNs: 1466-8033

Abstract

Abstract : Morphology control of ZnTi-LDHs with the help of surfactants. 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.