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可见光采集 SrTiO₃ 固体解决方案用于从水中的光催化进化

Xueshang Xin^1,2, Hai Zou^1,2, Shiwen Du¹

¹State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, Dalian Institute of Chemical Physic, Chinese Academy of Sciences, Dalian, 116023, China.

|May 13, 2024

概括

研究人员合成了SrTiO3和SrTaO2N的新型固体溶液,用于增强光催化. 这些材料表现出可调节的光吸收和改善的进化反应活性,显示出可持续能源应用的巨大潜力.

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
固态化学固态化学

背景情况:

固体解决方案提供了一条调整材料性质的途径.
开发高效的光催化剂对于可持续能源至关重要.
含的化合物对先进的应用有前途.

研究的目的:

合成新型 (SrTiO3) 1-x-(SrTaO2N) x 固体溶液.
研究它们的结构,光学和光催化性能.
评估它们对进化反应的潜力.

主要方法:

粉辅助化方法用于合成.
固体溶液的表征 (组成,结构,光学特性).
在演化反应中的光催化活性评估.

主要成果:

成功合成了 (SrTiO3) 1-x-(SrTaO2N) x固体溶液 (0≤x≤1) 的成功合成.
可调节的吸收边缘从500nm到600nm.
与母化合物相比,增强光催化演化反应 (HER) 活性.
来自Ti 3d和Ta 5d轨道的导电带最小值 (CBM);来自O 2p和N 2p轨道的价值带最大值 (VBM).
微观结构具有小纳米粒子和高特异性表面积.
由于广泛的光吸收和高电荷分离效率,HER活性更高.

结论:

合成的 (SrTiO3) 1-x-(SrTaO2N) x固体溶液显示出作为光催化材料的巨大潜力.
粉辅助化方法对合成氧化物是有效的.
这种方法对合成含有或硫的其他化合物有影响.

关键词:

在SrTiO3O3中使用.光催化作用的光催化作用一个固体溶液固体溶液.可见光对可见光的反应水的分裂是水的分裂.

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