微波辐射制备Bi<sub>2</sub>O<sub>3</sub>/NiF光阳极及模拟日光下光电催化氧化降解罗丹明B

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Abstract In order to solve the problems of low light utilization efficiency and difficult recovery and reuse of powder Bi₂O₃ photocatalyst, Bi₂O₃/NiF electrode was prepared with impregnation-microwave radiation hybrid technology, and its characterizations such as SEM, XRD, XPS and electrochemical properties were used to analyze the morphology, chemical structure and photoelectrocatalytic performance. Experimental results displayed that the flower-shaped Bi₂O₃ was successfully loaded on the surface of three-dimensional framework NiF, and it exhibited excellent photoelectric conversion efficiency. Photoelectrocatalytic degradation efficiency was about 95.35% when the photocurrent density was 15μA/cm², initial voltage was 2V, RhB concentration was 8mg/L and pH value was 3. Bi₂O₃/NiF photoelectrocatalytic degradation of RhB fitted well with the first-order reaction kinetics. Furthermore, the free radical trapping test confirmed that h⁺ played a major role in the process of Bi₂O₃/NiF photoelectrocatalytic degradation of RhB.

Key words： RhB photocatalysis nickel foam Bi₂O₃ advanced oxidation

Received: 04 May 2023

PACS:

X703

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	Articles by authors
	XU Hao
	GAO Bo
	ZHANG Liu-ke
	SHI Huan-xin
	XING Yu-lu
	ZHAO Xuan
	MA Bing-rui
	ZHAO Bao-xiu

Cite this article:

XU Hao,GAO Bo,ZHANG Liu-ke等. Preparation of Bi₂O₃/NiF photoelectrode with microwave irradiation and efficient photoelectrocatalytic degradation of RhB under simulated sunlight[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(1): 150-157.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I1/150

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