我组贺提为在Chemical Engineering Journal上发表论文

题目：

A step-by-step design for dual channel metal-free photocatalysts towards high yield H₂O₂photo-production from air and water

作者：

Tiwei He,[a] Jie Wu,[a] Yi Li,[a] Kaiqiang Wei,[a]Yan Liu,[a] Hui Huang,[a] Yang Liu,[a]* , Zhenhui Kang,[a, b]*

单位：

[a] Institute of Functional Nano and Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices Soochow University Suzhou 215123, China

[b] Macao Institute of Materials Science and Engineering (MIMSE)

MUST-SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa, Macao 999078, China

摘要：

Two-channel hydrogen peroxide (H₂O₂) released over metal-free catalysts is considered an efficient photocatalytic H₂O₂production pathway. Step-by-step rational catalyst design remains a scientific bottleneck to obtain metal-free photocatalysts with practical prospects. Here, we demonstrate the step-by-step design of a dual channel metal-free photocatalyst for high-yield H₂O₂photoproduction. We constructed the heterojunction structure of CN-CRCDs while retaining the oxygen reduction capability of carbon nitride (CN) and the water oxidation capability of hexaketocyclohexane-derived carbon dots (CRCDs). The catalyst exhibits ultra-high photocatalytic performance, with high yield of 3023 μmol g^-1h^-1for the photoproduction of H₂O₂from air and water. Combined with photoelectrochemical experiments and transient photovoltage (TPV) analysis, the photocatalytic reaction sites and charge transport mechanism of the synthesized catalysts were elucidated. Continuous wavelet transform (CWT) and empirical mode decomposition (EMD) were applied to the in-depth analysis of charge behavior of heterostructures for the first time. This work provides clear insights into the stepwise rational design of metal-free heterostructure photocatalysts and their interfacial electron transport kinetics.

影响因子：

15.1

分区情况：

1区

链接：

https://www.sciencedirect.com/science/article/pii/S1385894722040323