通过可控制的阴离子交换合成面向J型ZnIn2S4@CdIn2S4异构连接,以增强光催化进化
Yuexiang Li1, Shuqi Li1, Luhui Meng1
1College of Chemistry and Chemical Engineering, Key Laboratory of Jiangxi Province for Environment and Energy Catalysis, Nanchang University, Nanchang 330031, PR China.
Journal of colloid and interface science
|July 5, 2023
概括
研究人员使用ZnIn2S4和CdIn2S4开发了一种新的J型异质连接,用于增强光催化生产. 与传统方法相比,这种新材料显著提高了的演化效率.
科学领域:
- 材料科学 材料科学 材料科学
- 光催化作用的光催化
- 纳米技术 纳米技术
背景情况:
- 半导体异质连接通过增强电荷分离和传输来提高光催化效率.
- 层状ZnIn2S4 (ZIS) 呈现异构导电性,这表明沿其层平面的J型异构连接是最佳的.
- 导向ZIS异质连接的可控合成仍然是一个重大挑战.
研究的目的:
- 为面向的J型异质连接开发一种简单可控的合成策略.
- 构建具有增强光催化活性的J型ZnIn2S4@CdIn2S4 (J-ZIS@CIS) 异质连接.
- 为了研究合成的异质连接的光催化机制.
主要方法:
- 开发了一种具有成本效益,空间选择性的阴离子交换合成方法.
- 用花形六角形ZIS作为母材料.
- 在合成过程中控制CdIn2S4元件的晶体结构.
主要成果:
- 已经成功合成了J型ZnIn2S4@CdIn2S4 (J-ZIS@CIS) 异构连接.
- 在J-ZIS@CIS异构连接中,光催化演化速率为183μmolh-1,是原始ZIS的2.77倍.
- 展示了一种简单可控的方法,用于构建不可访问的定向异型异质连接.
结论:
- 开发的离子交换方法为J型异质连接提供了一个简单可控的途径.
- J-ZIS@CIS异构连接显示显著增强光催化演化活动.
- 这项工作为设计用于能源应用的先进光催化剂提供了一个有希望的策略.
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