In order to improve the utilisation of sunlight and expand the photoresponsive range of the photocatalyst, a visible light responsive 2D/0D binary heterojunction: Eu-Bi₁₂O₁₇Cl₂/Bi₁₄W₂O₂₇, was prepared in this paper by a controlled solvent-thermal method. The enhancement of photocatalytic activity originates from the following synergistic effects, including the unique 2D/0D contact interface, the enhancement of the photoresponsive range, and the introduction of the elemental Eu which makes the light-absorbing edge towards the visible light direction. The results of characterisation and photocatalysis experiments show that the 2D/0D catalyst has good spectral absorption range and redox capacity. In the experiments conducted with a xenon lamp as a simulated sunlight, the CO yield reached 44 μmol·g^-1·h^-1. The mechanism of electron transfer was analysed in conjunction with Density functional theory (DFT) calculations, laying the foundation for the subsequent development of photocatalysts in this field.

中文翻译：

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Eu-Bi12O17Cl2/Bi14W2O27 2D/0D 异质结，用于高效光催化将 CO2 还原为 CO


为了提高对太阳光的利用并扩大光催化剂的光响应范围，本文通过受控溶剂-热法制备了可见光响应 2D/0D 二元异质结：Eu-Bi₁₂O₁₇Cl₂/Bi₁₄W₂O₂₇。光催化活性的增强源于以下协同效应，包括独特的 2D/0D 接触界面、光响应范围的增强以及元素 Eu 的引入，使光吸收边缘朝向可见光方向。表征和光催化实验结果表明，2D/0D 催化剂具有良好的光谱吸收范围和氧化还原能力。在以氙灯为模拟太阳光的实验中，CO产率达到44 μmol·^g-1·^h-1。结合密度泛函理论 （DFT） 计算分析了电子转移的机理，为该领域光催化剂的后续发展奠定了基础。