Open AccessCapsule‐like CdS‐modified TiO 2 nanocomposites with enhanced photodegradation under visible light irradiation
Author(s) -
Song Xiaojie,
Yang Fan,
Fang Qunling,
Hu Hanmei,
Sun Liuqian
Publication year - 2015
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.2014.0491
Subject(s) - photodegradation , materials science , rhodamine b , photocatalysis , nanocomposite , cadmium sulfide , transmission electron microscopy , visible spectrum , titanium dioxide , fourier transform infrared spectroscopy , chemical engineering , scanning electron microscope , high resolution transmission electron microscopy , nanoparticle , nuclear chemistry , nanotechnology , chemistry , composite material , optoelectronics , organic chemistry , catalysis , engineering , metallurgy
Novel cadmium sulfide (CdS)/titanium dioxide (TiO 2 ) nanocomposites with uniform ‘capsule‐like’ distribution of CdS nanocrystals on TiO 2 nanoparticles (NPs) were successfully prepared by the hydrothermal method and the hot‐injection method. The CdS/TiO 2 nanocomposites were characterised by X‐ray powder diffraction, Fourier transform infrared spectroscopy, transmission electron microscopy, high‐resolution transmission electron microscopy and scanning electron microscopy. The CdS/TiO 2 nanocomposites (with Ti/Cd mass ratio of 1:1) exhibited excellent photocatalytic activity in the degradation of rhodamine B in water compared with pure TiO 2 NPs and CdS NPs under visible light. The product might have potential applications in the cleanup of the environment because of its excellent photocatalytic activity.