%0 Journal Article
%T Temperature-Program Assisted Synthesis of Novel Z-Scheme CuBi2O4/¦Â-Bi2O3 Composite with Enhanced Visible Light Photocatalytic Performance
%A Chunmo Yu
%A Ning Li
%A Runliang Zhu
%A Shuai Li
%A Song Xu
%A Wei Xia
%A Xiaojuan Chen
%A Xin Chen
%J Archive of "Nanomaterials".
%D 2018
%R 10.3390/nano8080579
%X Novel Z-Scheme CuBi2O4/¦Â-Bi2O3 composite photocatalysts with different mass ratios and calcination temperatures were firstly synthesized by the hydrothermal method following a temperature-programmed process. The morphology, crystal structure, and light absorption properties of the as-prepared samples were systematically characterized, and the composites exhibited enhanced photocatalytic activity toward diclofenac sodium (DS) degradation compared with CuBi2O4 and ¦Â-Bi2O3 under visible light irradiation. The optimal photocatalytic efficiency of the composite, achieved at the mass ratio of CuBi2O4 and ¦Â-Bi2O3 of 1:2.25 and the calcination temperature of 600 ¡ãC is 92.17%. After the seventh recycling of the composite, the degradation of DS can still reach 82.95%. The enhanced photocatalytic activity of CuBi2O4/¦Â-Bi2O3 is closely related to OH£¿, h+ and O2£¿£¿, and the photocatalytic mechanism of CuBi2O4/¦Â-Bi2O3 can be explained by the Z-Scheme theory
%K CuBi2O4/¦Â-Bi2O3
%K temperature programmed
%K semiconductors
%K Z-Scheme
%K visible light
%K organics
%U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6116239/