Photothermal–Excitonic Trade-Off in TiO2/BiCuSeO Heterojunctions for Optimal Solar-Driven Hydrogen Production

Seiya Motoki; Jinqiang Zhang; Jingkai Lin; Kunsheng Hu; Xiaoguang Duan; Shaobin Wang

doi:10.1039/d6ta00380j

January 1, 2026Journal of Materials Chemistry A

Photothermal–Excitonic Trade-Off in TiO2/BiCuSeO Heterojunctions for Optimal Solar-Driven Hydrogen Production

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Key Points

The goal is to investigate the trade-offs between photothermal and excitonic effects in TiO2/BiCuSeO heterojunctions to improve solar-driven hydrogen production.
Designed and synthesized TiO2/BiCuSeO heterojunctions.
Evaluated photocatalytic performance under solar illumination.
Analyzed the interplay of excitonic and thermal effects on hydrogen evolution.
Demonstrated significant enhancement in hydrogen production compared to pure TiO2.
Found optimal excitonic contributions at specific compositions of BiCuSeO.
Indicated successful utilization of wider solar spectrum for photocatalytic activity.

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Implication

This research demonstrates enhanced hydrogen production in TiO2/BiCuSeO heterojunctions, suggesting a method for efficient solar energy conversion.

Abstract

Photocatalytic hydrogen production driven by solar energy presents a promising route for sustainable energy conversion. However, the benchmark photocatalyst TiO2 is constrained by limited harvest of visible and infrared (IR)...

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Motoki et al. (2026) studied this question.

synapsesocial.com/papers/69e9bb9e85696592c86ed293 https://doi.org/10.1039/d6ta00380j

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Photothermal–Excitonic Trade-Off in TiO2/BiCuSeO Heterojunctions for Optimal Solar-Driven Hydrogen Production

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

Photothermal–Excitonic Trade-Off in TiO2/BiCuSeO Heterojunctions for Optimal Solar-Driven Hydrogen Production

Key Points

Ask about this paper

Implication

Abstract

Discussion

Cite This Study

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