异质结
材料科学
肖特基势垒
欧姆接触
化学工程
光催化
电荷(物理)
化学物理
氮化碳
色散(光学)
表面能
纳米技术
光电子学
化学
复合材料
催化作用
有机化学
光学
量子力学
工程类
物理
二极管
图层(电子)
作者
Yizhou Wu,Donglin Li,Dania Sajjad,Yixuan Chen,Yiying Sun,Shusong Liu,Jiafu Shi,Zhongyi Jiang
标识
DOI:10.1016/j.apcatb.2022.121261
摘要
Heterostructure materials are increasingly utilized in solar energy conversion to pursue high efficiency and long-term stability. The charge transfer across interfaces gives rise to major energy loss arising from non-ideal interfacial effects, i.e., high interfacial energy barrier and low interfacial contacting area. Herein, we demonstrate a facile interface engineering strategy to eliminate non-ideal interfacial effects. A heterojunction of [email protected] is constructed via polyphenol-assisted assembly of titania (P25) and carbon nitride (CN). The uniform dispersion of P25 on CN enlarges the interfacial contacting area of 3.2-fold compared with random dispersion, while the transformation of polyphenols into conjugated carbon facilitates the interfacial charge transfer by switching a 0.4 eV Schottky contact to a 0.1 eV Ohmic contact between CN and P25. A 2.5-fold enhancement of charge transfer flux is obtained with an initial reaction rate of 5185 μmol h−1 g−1 for photocatalytic nicotinamide regeneration.
科研通智能强力驱动
Strongly Powered by AbleSci AI