Scholarlink

<p>The<?tk 4?> pursuit of photocatalysts is a crucial endeavor in the field of green chemistry with the growing environmental hazards caused by pollutants and organic dyes. Photocatalytic process serves as a cornerstone in addressing urgent environmental challenges, encompassing tasks such as hydrogen generation through water splitting, the reduction of pollutants, and the decomposition of organic dyes. Since d<sup>10</sup> electronic configuration semiconductors allow higher mobility of photoexcited electrons, among them Zinc gallate has become a research hotspot because it is a typical spinel compound with two d<sup>10</sup> configuration cations. This study specifically investigates the photocatalytic activity of ZnGa<sub>2</sub>O<sub>4</sub> in the decomposition of Rhodamine B and the photolysis of water, which are critical for environmental remediation. Despite the promising potential of ZnGa<sub>2</sub>O<sub>4</sub> in photocatalysis, its wide bandgap presents limitations to light absorption efficiency. In order to solve the above problems, doping Nickel ion with a + 2 charge into ZnGa<sub>2</sub>O<sub>4</sub> to modify it becomes a key strategy, as it can bring additional energy levels to enhance the separation of photogenerated electron-hole pairs, which achieves the result of improving the photocatalytic efficiency, and may also lead to a wider spectral response range and improve the photocatalytic performance of the material in the visible region. Although the relevant research reports on ZnGa<sub>2</sub>O<sub>4</sub> are beginning to take shape, further exploration is still needed, especially regarding the shortening of the ZnGa<sub>2</sub>O<sub>4</sub> bandgap width, with detailed mechanistic insights presented. This study addresses this issue by providing a comprehensive analysis. Ni<sup>2+</sup>-doped ZnGa<sub>2</sub>O<sub>4</sub> photocatalytic materials were prepared hydrothermally. The characterization technique to confirm the enhanced inherent photocatalytic properties of ZnGa<sub>2</sub>O<sub>4</sub> is then further explained. Finally, an overview of the main challenges facing the field is given and potential directions for future research are highlighted.</p> Graphical Abstract <p></p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Study on the Influence of Ni2+ Doping on the Photocatalytic Performance of ZnGa2O4

  • 期刊论文

  • 发表日期：

    2025年9月5日

查看全文
  • Yue Zu,
  • Jiahao Ye,
  • Zixuan Shi,
  • Hongna Cheng,
  • Zihan Wang,
  • Ziyue Zhang,
  • Diao Zhang,
  • Zuotao Liu,
  • Yi Shen,
  • Fengfeng Li

摘要

The pursuit of photocatalysts is a crucial endeavor in the field of green chemistry with the growing environmental hazards caused by pollutants and organic dyes. Photocatalytic process serves as a cornerstone in addressing urgent environmental challenges, encompassing tasks such as hydrogen generation through water splitting, the reduction of pollutants, and the decomposition of organic dyes. Since d10 electronic configuration semiconductors allow higher mobility of photoexcited electrons, among them Zinc gallate has become a research hotspot because it is a typical spinel compound with two d10 configuration cations. This study specifically investigates the photocatalytic activity of ZnGa2O4 in the decomposition of Rhodamine B and the photolysis of water, which are critical for environmental remediation. Despite the promising potential of ZnGa2O4 in photocatalysis, its wide bandgap presents limitations to light absorption efficiency. In order to solve the above problems, doping Nickel ion with a + 2 charge into ZnGa2O4 to modify it becomes a key strategy, as it can bring additional energy levels to enhance the separation of photogenerated electron-hole pairs, which achieves the result of improving the photocatalytic efficiency, and may also lead to a wider spectral response range and improve the photocatalytic performance of the material in the visible region. Although the relevant research reports on ZnGa2O4 are beginning to take shape, further exploration is still needed, especially regarding the shortening of the ZnGa2O4 bandgap width, with detailed mechanistic insights presented. This study addresses this issue by providing a comprehensive analysis. Ni2+-doped ZnGa2O4 photocatalytic materials were prepared hydrothermally. The characterization technique to confirm the enhanced inherent photocatalytic properties of ZnGa2O4 is then further explained. Finally, an overview of the main challenges facing the field is given and potential directions for future research are highlighted.

Graphical Abstract