光催化
卟啉
可见光谱
光化学
化学
催化作用
溶剂
化学工程
纳米技术
材料科学
有机化学
光电子学
工程类
作者
Dingwa Zhang,Xiaoyang Huang,Jiangen Huang,Yuting Li,Jinhua Cai
标识
DOI:10.1142/s1088424621500280
摘要
Porphyrin nanostructures are widely used in the field of visible light catalysis due to their superior light absorption properties and good controllability in size, shape and function. In this paper, the development of various morphologies in three types of porphyrins with three different phenyl substituents (designated as H 2 TTP, H 2 TPP and H 2 TCPP, respectively) is demonstrated. The formation mechanism proposed was based on the evolution of morphology as functions of molecular structure and solvent mixture. These nano/micro assemblies are well characterized by SEM, IR, UV-vis, X-ray diffraction and photoelectric conversion. The photocatalytic oxidation reactions under visible light irradiation of 1,5-dihydroxynaphthalene (DHN) in water is utilized to evaluate the photoactivity of the as-prepared porphyrin assemblies. The photocatalytic results indicate that the obtained porphyrin assemblies exhibit enhanced visible-light photocatalytic activity. In addition, the photocatalyst is easy to separate and recover, and has good stability. The possible photocatalytic degradation mechanism of DHN by the porphyrins nanopolyhedron photocatalyst was also proposed.
科研通智能强力驱动
Strongly Powered by AbleSci AI