Open AccessInvestigation of photocatalytic activity of Ag‐rutile heterojunctions
Author(s) -
Zhu Xiaodong,
Liu Hui,
Wang Juan,
Dai Hualong,
Bai Yu,
Feng Wei,
Han Shihu
Publication year - 2020
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2020.0253
Subject(s) - rutile , photocatalysis , heterojunction , materials science , adsorption , chemical engineering , nanomaterials , absorption (acoustics) , nanotechnology , chemistry , catalysis , optoelectronics , composite material , organic chemistry , engineering
The pure rutile and Ag‐rutile nanomaterials were synthesised using sol–gel route and the effect of Ag concentration on the composite photocatalyst activity was investigated. The results show that the Ag 0 particles are deposited on the rutile surface, forming Ag‐rutile heterojunctions. The high concentration of Ag is beneficial to inhibit the recombination of electrons and holes, meanwhile, excessive Ag particles will hinder the absorption of light source and adsorption of RhB molecules. Therefore, 2% of Ag rutile exhibits the highest photocatalytic activity.