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An inexpensive CuO nanoparticles as cocatalyst significantly enhanced the photo-oxidation performance of Bi2Ga2.8Al1.2O9 photocatalyst under visible-light by Yang, Jia; Fu, Mingyan; Liu, Hongfu; Yin, Guihua; Tan, Mingdan; Sun, Xiaorui; Huang, Huisheng is a Materials Science article available to read on EtoBox.

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Herein, we present a systematic investigation of CuO nanoparticles decorated on Bi 2 Ga 2.8 Al 1.2 O 9 semiconducting photocatalyst for the photo-oxidation rhodamine B (RhB) under visible-light. Under the same condition, all cocatalysts (CuO, Ag, Au, Pt and Co) enhanced the photocatalytic activity than the intrinsic Bi 2 Ga 2.8 Al 1.2 O 9 photocatalyst, where the BGAO-2.5%Cu photocatalyst show the highest photo-oxidation activity. The kinetic constant (k) of the obtained optimal photocatalyst is 3.9 and 5.7 times than those of Bi 2 Ga 2.8 Al 1.2 O 9 and Bi 2 Ga 4 O 9 semiconductors, respectively. The photo-oxidation efficiency of RhB is 99.14% over the optimal photocatalyst in 2 h. The possible photocatalytic mechanism of the function of CuO on the semiconductor is proposed. This work highlight the CuO which was decorated on semiconductor by a simple photodeposition method play an essential role for the environmental cleaning.

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Author

Yang, Jia; Fu, Mingyan; Liu, Hongfu; Yin, Guihua; Tan, Mingdan; Sun, Xiaorui; Huang, Huisheng

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0167-577X)

Published

2021

Language

EN

Field

Materials Science (Physical Sciences)