层状La2NiO4钙钛矿负载TiO2形成异质结，增强可见光驱动光催化制氢

IF 1.5 4区工程技术 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Photonics for Energy Pub Date : 2021-07-01 DOI:10.1117/1.JPE.11.034001

Xinyu Ma, Chaoqian Ai, Jiamei Cao, Jinghua Li, Yizhou Zhu, D. Jing

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引用次数: 1

摘要

摘要在我们的工作中，在片状La2NiO4钙钛矿上负载具有小可见光吸收的TiO2纳米颗粒的UV响应，以构建用于在可见光下高效制氢的I型异质结。研究发现，随着La2NiO4含量的增加，制氢速率逐渐增加，当La2NiO4-的质量分数为8wt.%时达到最高值，是没有助催化剂Pt的初始La2NiO4.纳米片的39.5倍。当负载1wt.%Pt时，复合光催化剂的光催化活性是初始La2NiO4的369.0倍。我们的工作对制备具有高活性、中等稳定性和低毒性的可见光响应异质结光催化剂具有一定的价值。

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Heterojunction formed by TiO2 supported on lamellar La2NiO4 perovskite for enhanced visible-light-driven photocatalytic hydrogen production

Abstract. In our work, UV-response with a small visible light absorption TiO2 nanoparticles were supported on lamellar La2NiO4 perovskite to build a type I heterojunction for efficient hydrogen production under visible light. It was found that, with the increase of La2NiO4 contents, the hydrogen production rates gradually increased and amounted to the highest value when the mass fraction of La2NiO4 was 8 wt. %, which is 39.5 times that of the initial La2NiO4 nanosheets without the cocatalyst Pt. When 1 wt. % Pt was loaded, the photocatalytic activity for the composite photocatalyst increased by 369.0 times that of the initial La2NiO4. Our work should be of value for the preparation of visible responsive heterojunction photocatalysts with high activity, fair stability, and low toxicity.

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来源期刊

Journal of Photonics for Energy MATERIALS SCIENCE, MULTIDISCIPLINARY-OPTICS

CiteScore

3.20

自引率

5.90%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal of Photonics for Energy publishes peer-reviewed papers covering fundamental and applied research areas focused on the applications of photonics for renewable energy harvesting, conversion, storage, distribution, monitoring, consumption, and efficient usage.