Open AccessPreparation and NIR light-driven photocatalytic properties of β-NaYF4:Yb3+, Tm3+/ZnO core-shell composites
Author(s) -
Zhigang Yi,
Tao Jiang,
Xiao Ma,
Ying Zhang,
Qiong Tang
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/688/3/033061
Subject(s) - photocatalysis , materials science , photon upconversion , hydrothermal circulation , irradiation , visible spectrum , nanocomposite , composite material , chemical engineering , optoelectronics , doping , catalysis , chemistry , biochemistry , physics , nuclear physics , engineering
A novel UV/NIR light-driven β-NaYF 4 :Yb 3+ , Tm 3+ /ZnO core-shell composites were prepared via microwave assisted hydrothermal technology. The results of characterize indicated that the β-NaYF 4 :Yb 3+ , Tm 3+ /ZnO was obtained by loading ZnO on the surface of β-NaYF 4 :Yb 3+ , Tm 3+ , which could efficiently absorb the UV emission light via upconversion process of β-NaYF 4 :Yb 3+ , Tm 3+ . The degradation of MB using β-NaYF 4 :Yb 3+ , Tm 3+ /ZnO particles as photocatalyst under irradiation of simulated sunlight without UV light showed photocatalytic activity of β-NaYF 4 :Yb 3+ , Tm 3+ /ZnO could be driven under irradiation of NIR light.