Abstract In this article, a ternary carbon modified Bi2MoO6 @ attapulgite composite (BMO@C@ATP) was fabricated by in situ self-assembly methodology using glucose as the carbon source. The photocatalytic activity of BMO@C@ATP in nitrogen fixation reaction was then evaluated. The studies showed that BMO@C@ATP composite exhibited higher catalytic performance after carbon-doping, comparing with the BMO and BMO@ATP. The N2 fixation rate can reach up to 83.09 μmol L−1 h−1 in the presence of BMO@C@ATP, which is 2.67 times higher than that of Bi2MoO6 photocatalyst (31.11 μmol L−1 h−1). The enhanced catalytic rate of the ternary composite may be attributed to its excellent light trapping performance, large surface area, and efficient separation of carriers. Moreover, the lattice substitution of C atoms serves as the conductive electron bridge, which can accumulate electrons and promote the NH3 generation over Bi2MoO6 photocatalyst. In general, the present BMO@C@ATP photocatalytic system provides a simple and economical method for nitrogen fixation process, which shows great application prospects in the future.

中文翻译：

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Bi2MoO6@C@凹凸棒石光催化剂的原位合成增强模拟太阳照射下的光催化固氮能力

摘要 在本文中，以葡萄糖为碳源，通过原位自组装方法制备了三元碳改性 Bi2MoO6@凹凸棒石复合材料（BMO@C@ATP）。然后评估了 BMO@C@ATP 在固氮反应中的光催化活性。研究表明，与 BMO 和 BMO@ATP 相比，BMO@C@ATP 复合材料在碳掺杂后表现出更高的催化性能。在 BMO@C@ATP 存在下，N2 固定率可达 83.09 μmol L-1 h-1，是 Bi2MoO6 光催化剂（31.11 μmol L-1 h-1）的 2.67 倍。三元复合材料的催化速率提高可能归因于其优异的光捕获性能、大表面积和有效的载体分离。此外，C原子的晶格取代充当导电电子桥，它可以在 Bi2MoO6 光催化剂上积累电子并促进 NH3 的生成。总的来说，目前的BMO@C@ATP光催化体系为固氮过程提供了一种简单、经济的方法，在未来具有广阔的应用前景。