Construction of a double heterojunction between graphite carbon nitride and anatase TiO2 with co-exposed (101) and (001) faces for enhanced photocatalytic degradation

Jingjing Sun; Lang Deng; Jing Sun; Tingting Shen; Xikui Wang; Rusong Zhao; Yiyao Zhang; Baolin Wang

doi:10.1039/D2RA01620F

You do not have JavaScript enabled. Please enable JavaScript to access the full features of the site or access our non-JavaScript page.

Construction of a double heterojunction between graphite carbon nitride and anatase TiO₂ with co-exposed (101) and (001) faces for enhanced photocatalytic degradation†

Jingjing Sun,‡^a Lang Deng,‡^a Jing Sun,

*^a Tingting Shen,*^a Xikui Wang,^b Rusong Zhao,

^c Yiyao Zhang^a and Baolin Wang^a

Author affiliations

* Corresponding authors

^a School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, PR China
E-mail: sunjing77@qlu.edu.cn, shentingting@qlu.edu.cn

^b College of Environmental Science and Engineering, Shandong Agriculture and Engineering University, Jinan 251100, PR China

^c College of c Key Laboratory for Applied Technology of Sophisticated Analytical Instrument of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Science), Jinan 250014, PR China

Abstract

This study aimed to promote the separation of photogenerated carriers and improve the redox performance of graphite carbon nitride (g-C₃N₄) by synthesizing a double-heterojunction-structure photocatalyst, g-C₃N₄/(101)-(001)-TiO₂, through the solvothermal method. The photocatalyst comprised a Z-system formed from g-C₃N₄ and the (101) plane of TiO₂, as well as a surface heterojunction formed from the (101) and (001) planes of TiO₂. The results showed that g-C₃N₄/(101)-(001)-TiO₂ had strong photocatalytic activity and stable performance in the photodegradation of paracetamol. The active species ·O₂⁻ and ·OH were found to play important roles in the photocatalytic degradation of paracetamol through a radical-quenching experiment. The charge-transfer mechanism was also described in detail. Overall, this work provided a new strategy for the Z-system heterojunction and opened up the application of this structure in the degradation of organic pollutants.

Download options Please wait...

Supplementary files

Supplementary information PDF (227K)

Article information

DOI: https://doi.org/10.1039/D2RA01620F
Article type: Paper
Submitted: 12 Mar 2022
Accepted: 03 Jul 2022
First published: 13 Jul 2022
This article is Open Access

Download Citation

RSC Adv., 2022,12, 20206-20216

Permissions

Request permissions

Construction of a double heterojunction between graphite carbon nitride and anatase TiO₂ with co-exposed (101) and (001) faces for enhanced photocatalytic degradation

J. Sun, L. Deng, J. Sun, T. Shen, X. Wang, R. Zhao, Y. Zhang and B. Wang, RSC Adv., 2022, 12, 20206 DOI: 10.1039/D2RA01620F

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Social activity

Fetching data from CrossRef.
This may take some time to load.

RSC Advances