Insights into catalytic activity and mechanism of BiVO4 modified by different cerium forms in collaboration with C3N4

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2025-02-18 DOI:10.1016/j.jphotochem.2025.116327

Yanjun Zhao , Qian Luo , Minyue Zhou , Shirui Lv , Yuning Ma , Xintong Liu

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引用次数: 0

Abstract

Environmental photocatalysis is an effective technology to deal with environmental pollution. In this study, bismuth vanadate (BiVO₄), one of the most common photocatalysts, was used as the substrate material. Different states cerium (Ce) with multiple electron layers were firstly introduced, afterwards C₃N₄ was hybridized. The existence forms of Ce in semiconductor matrix lattice under different conditions were investigated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM) and other characterization methods. Furthermore, quenching experiments and electron paramagnetic resonance (EPR) techniques were used to discuss the changes in the production of reactive oxygen species (ROS) by different forms of Ce electron layers. This study systematically summarized the relationship and rule of Ce and ROS formation. It provides the research basis and theoretical basis for exploring the mechanism of photocatalytic reaction and dealing with environmental problems in practice.

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环境光催化是解决环境污染问题的有效技术。本研究采用最常见的光催化剂之一钒酸铋（BiVO4）作为基底材料。首先引入了具有多个电子层的不同状态的铈（Ce），然后杂化了 C3N4。通过 X 射线衍射 (XRD)、X 射线光电子能谱 (XPS)、扫描电子显微镜 (SEM) 等表征方法研究了不同条件下 Ce 在半导体基体晶格中的存在形式。此外，还利用淬火实验和电子顺磁共振（EPR）技术探讨了不同形式的 Ce 电子层在产生活性氧（ROS）方面的变化。该研究系统地总结了 Ce 与 ROS 形成的关系和规律。为探索光催化反应机理和解决实际环境问题提供了研究基础和理论依据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Photochemistry and Photobiology A-chemistry 化学-物理化学

CiteScore

7.90

自引率

7.00%

发文量

580

审稿时长

48 days

期刊介绍： JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds. All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor). The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.