Premium
Integration of metallic TaS 2 Co‐catalyst on carbon nitride photoharvester for enhanced photocatalytic performance
Author(s) -
Chen Hanxiang,
Zhang Xiaoni,
Ji Haiyan,
Xia Kaixiang,
Yi Jianjian,
Ke Fusheng,
Xu Hui,
Chen Mindong,
Li Huaming
Publication year - 2019
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.23438
Subject(s) - photocatalysis , catalysis , materials science , noble metal , graphitic carbon nitride , rhodamine b , carbon nitride , metal , nitride , chemical engineering , degradation (telecommunications) , carbon fibers , precious metal , nanotechnology , inorganic chemistry , chemistry , composite material , metallurgy , computer science , organic chemistry , telecommunications , engineering , layer (electronics) , composite number
The efficient separation of photogenerated electron‐hole (e − ‐h + ) pairs is the key point for photocatalytic reactions. The integration of co‐catalysts, especially noble‐metals, can improve the e − ‐h + separation efficiency dramatically. However, the high‐cost would limit their large‐scale application. Therefore, the exploration of noble‐metal‐free co‐catalysts is still important for the development of photocatalysis. In this work, we report a series of metallic TaS 2 based catalysts that can effectively boost the photocatalytic performance of a metal‐free semiconductor (2D‐C 3 N 4 ). The advantages of the as‐prepared catalysts were demonstrated as follows: (i) noble‐metal‐free; (ii) outstanding electrical conductivity; and (iii) superior stability. As demonstrated in a photocatalytic degradation reaction, the optimal removal rate of pollutant Rhodamine B (RhB) reached 92 % after 100 min of irradiation, which is enhanced by almost 25 % more than pure two‐dimensional graphitic carbon nitride nanosheets (2D‐C 3 N 4 ). This work may provide insight into finding new low‐cost metallic materials as co‐catalysts to promote phototcatalytic performance.