Premium
One‐Pot Preparation of a TiO2/Cu 2 ZnSnS 4 Heterojunction and its Photocatalytic Activity
Author(s) -
Kim SungDuk,
Park YongKwang,
Bu ChungHeon,
Jung Dongwoon
Publication year - 2016
Publication title -
bulletin of the korean chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.237
H-Index - 59
ISSN - 1229-5949
DOI - 10.1002/bkcs.10826
Subject(s) - czts , heterojunction , photocatalysis , materials science , thioglycolic acid , anatase , chemical engineering , chemistry , nanotechnology , optoelectronics , thin film , organic chemistry , catalysis , engineering
The semiconductor Cu 2 ZnSnS 4 (CZTS), was synthesized by reacting CuO, ZnO, and SnO with ethanolamine, 2‐methoxyethanol, and thioglycolic acid. Anatase TiO 2 particle was dispersed into the CZTS precursor solution, so that TiO 2 /CZTS heterojunction was created through the nucleation of CZTS onto the TiO 2 surface. The photocatalytic efficiencies of TiO 2 /CZTS heterojunction samples with different TiO 2 :CZTS ratios were then investigated. The photocatalytic efficiency of TiO 2 /CZTS heterojunction sample was found to be superior to those of CZTS and the efficiency decreased with an increase in the TiO 2 :CZTS ratio. The highest efficiency, obtained from the 1:1 sample, was about 1.7 times that of P‐25.