Recent trends in TiO2 focused S-scheme heterojunctions for photocatalytic innovations: A comprehensive analysis

Sneha, N. K. and Ragesh Nath, R. and Alkanad, K. and Akhila, A. and Ke, S. C. and Lokanath, N. K. (2025) Recent trends in TiO2 focused S-scheme heterojunctions for photocatalytic innovations: A comprehensive analysis. Journal of Alloys and Compounds, 1016. ISSN 0925-8388

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Abstract

The transformation of natural solar power into stable chemical energy represents a pivotal strategy for reducing fossil fuel dependence. Among the various environmental remediation techniques, photocatalysis has emerged as an effective method for harnessing natural light energy to produce sustainable chemical energy. Titanium di- oxide (TiO2) is a widely studied photocatalyst, but its narrow light absorption and weak redox ability limit its efficiency. To addresses these challenges, developing heterojunction systems has emerged as an effective method to enhance the photocatalytic performance of TiO2. Specifically, the development of TiO2-based heterojunctions involving two or more semiconductor materials can integrate multiple advantages, thus enhancing the overall efficiency of the photocatalytic process. Significant advancements have been achieved in the design and fabri- cation of TiO2-based S-scheme heterojunction photocatalysts, leading to diverse applications in environmental and energy-related domains. This review offers an in-depth examination of the properties, photocatalytic mechanisms, design principles, and synthesis techniques of TiO2-based S-scheme heterojunction photocatalysts. Additionally, we explore recent progress in utilizing these photocatalysts for the breakdown of organic pollut- ants, hydrogen production, and the conversion of carbon dioxide into renewable fuels through photoreduction. Furthermore, we identify existing gaps in the current construction strategies and applications of TiO2-based S- scheme heterojunctions, highlighting areas where further research is required to unlock their full potential and advance this promising and innovative field.

Item Type:	Article
Uncontrolled Keywords:	TiO 2 photocatalyst, S -scheme heterojunction, DFT studies, Hydrogen production, CO 2 reduction, Organic pollutant degradation. ,
Subjects:	D Physical Science > Physics
Divisions:	Department of > Physics
Depositing User:	Ms Varalakshmi
Date Deposited:	27 Oct 2025 05:47
Last Modified:	27 Oct 2025 05:47
URI:	http://eprints.uni-mysore.ac.in/id/eprint/17866

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