Fabrication of Z-Type TiN@(A,R)TiO<sub>2</sub> Plasmonic Photocatalyst with Enhanced Photocatalytic Activity

Wanting Wang; Yuanting Wu; Long Chen; Chenggang Xu; Changqing Liu; Chengxin Li

doi:10.3390/nano13131984

Nanomaterials (Jun 2023)

Fabrication of Z-Type TiN@(A,R)TiO<sub>2</sub> Plasmonic Photocatalyst with Enhanced Photocatalytic Activity

Wanting Wang,
Yuanting Wu,
Long Chen,
Chenggang Xu,
Changqing Liu,
Chengxin Li

Affiliations

Wanting Wang: Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China
Yuanting Wu: Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China
Long Chen: Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China
Chenggang Xu: Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China
Changqing Liu: Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, School of Material Science and Engineering, Shaanxi University of Science & Technology, Xi’an 710021, China
Chengxin Li: State Key Laboratory for Mechanical Behavior of Materials, School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an 710049, China

DOI: https://doi.org/10.3390/nano13131984
Journal volume & issue: Vol. 13, no. 13
p. 1984

Abstract

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Plasmonic effect-enhanced Z-type heterojunction photocatalysts comprise a promising solution to the two fundamental problems of current TiO2-based photocatalysis concerning low-charge carrier separation efficiency and low utilization of solar illumination. A plasmonic effect-enhanced TiN@anatase-TiO2/rutile-TiO2 Z-type heterojunction photocatalyst with the strong interface of the N–O chemical bond was synthesized by hydrothermal oxidation of TiN. The prepared photocatalyst shows desirable visible light absorption and good visible-light-photocatalytic activity. The enhancement in photocatalytic activities contribute to the plasma resonance effect of TiN, the N–O bond-connected charge transfer channel at the TiO2/TiN heterointerface, and the synergistically Z-type charge transfer pathway between the anatase TiO2 (A-TiO2) and rutile TiO2 (R-TiO2). The optimization study shows that the catalyst with a weight ratio of A-TiO2/R-TiO2/TiN of approximately 15:1:1 achieved the best visible light photodegradation activity. This work demonstrates the effectiveness of fabricating plasmonic effect-enhanced Z-type heterostructure semiconductor photocatalysts with enhanced visible-light-photocatalytic activities.

Published in Nanomaterials

ISSN: 2079-4991 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry
Website: https://www.mdpi.com/journal/nanomaterials

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