Liang Qian, Zhao Shuang, Li Zhongyu, Wu Zhenyu, Shi Hong, Huang Hui, Kang Zhenhui
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China.
Institute of Functional Nano and Soft Materials Laboratory (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.
ACS Appl Mater Interfaces. 2021 Sep 1;13(34):40754-40765. doi: 10.1021/acsami.1c12800. Epub 2021 Aug 23.
The photocatalytic conversion of organic wastewater into value-added chemicals is a promising strategy to solve the environmental issue and energy crisis. Herein, Co/InO nanotubes with a double-shell structure, as a highly efficient photocatalyst, are synthesized by a one-step calcination method. The Co/InO heterostructure shows an outstanding photocatalytic CO reduction performance of 4902 μmol h g. Notably, these Co/InO photocatalysts also achieve CO self-generation and reduction conversion in acid organic wastewater (phenol solution), in which the high CO (47.5 μmol h g) and CO (0.9 μmol h g) evolution rates are demonstrated under solar irradiation. Transient photovoltage (TPV) tests demonstrate that Co nanoparticles on Co/InO double-shell heterostructure serve as the CO reduction sites for the effective capture and stabilization of the photogenerated electrons.
将有机废水光催化转化为高附加值化学品是解决环境问题和能源危机的一种很有前景的策略。在此，具有双壳结构的Co/InO纳米管作为一种高效光催化剂，通过一步煅烧法合成。Co/InO异质结构表现出4902 μmol h g的出色光催化CO还原性能。值得注意的是，这些Co/InO光催化剂还能在酸性有机废水（苯酚溶液）中实现CO的自生成和还原转化，在太阳辐射下展现出高的CO（47.5 μmol h g）和CO（0.9 μmol h g）析出速率。瞬态光电压（TPV）测试表明，Co/InO双壳异质结构上的Co纳米颗粒作为CO还原位点，用于有效捕获和稳定光生电子。
