Novel multilayer TiO2 heterojunction decorated by low g-C3N4 content and its enhanced photocatalytic activity under UV, visible and solar light irradiation

Wang, Yizheng; Yu, Jiang; Peng, Weidong; Tian, Jing; Yang, Chun

doi:10.1038/s41598-019-42438-w

Title: Novel multilayer TiO₂ heterojunction decorated by low g-C₃N₄ content and its enhanced photocatalytic activity under UV, visible and solar light irradiation

Journal Article · Thu Apr 11 00:00:00 EDT 2019 · Scientific Reports

DOI:https://doi.org/10.1038/s41598-019-42438-w· OSTI ID:1613278

Wang, Yizheng ^[1]; Yu, Jiang ^[1]; Peng, Weidong ^[1]; Tian, Jing ^[1]; Yang, Chun ^[2]

Sichuan Univ., Chengdu (China)
Sichuan Univ., Chengdu (China); Computational Visualization and Virtual Reality Key Lab. of Sichuan Province, Chengdu (China)

In this paper, we used a facile ball milling, microwave radiation and heating treatment method to achieve the surface modification of TiO₂ with low g-C₃N₄ concentration, and a multilayer heterojunction composite with TiO₂ as the main part and g-C₃N₄ as the modification agent was obtained. The obtained materials were analyzed by several characterizations to get information on their chemical composition, crystalline structure, vibrational features and optical properties. The photocatalytic performance was evaluated by degradation of rhodamine B (RhB) and methylene blue (MB) under UV, visible and direct solar light irradiation. Its photocatalytic activity was enhanced depended on the novel structure of g-C₃N₄/TiO₂ hybrid and the special Z-scheme electron-hole transfer model of multilayer heterointerfaces. The material preparation and structural features could be useful for the design and development of other photocatalysts with high photocatalytic activity.

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Research Organization:: Univ. of California, San Diego, CA (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE)

Grant/Contract Number:: EE0003373

OSTI ID:: 1613278

Journal Information:: Scientific Reports, Vol. 9, Issue 1; ISSN 2045-2322

Publisher:: Nature Publishing GroupCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 20 works

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Title: Novel multilayer TiO₂ heterojunction decorated by low g-C₃N₄ content and its enhanced photocatalytic activity under UV, visible and solar light irradiation