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碳化聚合物点/Bi/β-Bi₂O₃用于通过Redox双通道有效光合作用H₂O₂

Yuan Guan¹, Qiankun Deng¹, Jie Wang²

¹Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, P. R. China.

Langmuir : the ACS journal of surfaces and colloids

|December 1, 2023

概括

一种新的碳化聚合物点 (CPDs) /Bi/β-Bi₂O₃异质连接光催化剂被合成. 这种Z型材料增强了电荷分离,大大提高了过氧化 (H₂O₂) 的产生.

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
绿色化学绿色化学

背景情况:

开发高效的光催化剂对于可持续的化学合成至关重要.
异质连接结构提供了增强的电荷分离,以改善光催化活性.
通过光催化产生过氧化 (H₂O₂) 是传统方法的环保替代方案.

研究的目的:

为了合成一种新的碳化聚合物点 (CPD) /Bi/β-Bi₂O₃异构连接光催化剂.
研究合成材料的形成机制和光催化性能.
探索这种材料对高效的过氧化 (H₂O₂) 生产的潜力.

主要方法:

采用单溶热合成方法,调整反应温度和时间.
乙烯基醇作为溶剂和碳来源,用于CPD的形成和Bi的减少.
进行了材料结构和性质的表征.

主要成果:

一种新的CPDs/Bi/β-Bi₂O₃异质连接光催化剂被成功合成.
由于四个内置电场,该材料呈现出Z型电荷分离机制.
实现了高的H₂O₂生产率1590μmol g^-1h^-1,太阳能到化学转化效率为0.11%.

结论:

合成的CPDs/Bi/β-Bi₂O₃异质连接是H₂O₂生产的有效光催化剂.
Z型电荷分离机制显著增强了光催化活性.
这种材料显示了高效和可持续的H2O合成的前景.

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