超声协同非均相类Fenton反应氧化去除苯酚

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Abstract CuO-Ce/Al₂O₃ catalyst was prepared to degrade phenol by the ultrasound-assisted heterogeneous Fenton-like catalytic oxidation. The influencing factors, such as H₂O₂ concentration, catalyst loading, pH value and ultrasound intensity, were investigated while the leaching of copper was studied. The surface of catalysts was characterized by X photoelectron spectroscopy (XPS), scanning electron microscope (SEM) and Brunauer-Emmett-Teller (BET). The results showed that the degradation of phenol reached 99.65% at pH value of 6.0, H₂O₂ concentration of 1650mg/L, catalyst loading of 3.5g/L and ultrasound unit power of 500W. Phenol degradation ability ordered by US/H₂O₂/CuO-Ce/Al₂O₃ > H₂O₂/CuO-Ce/Al₂O₃ > US/CuO-Ce/Al₂O₃ > US/H₂O₂ > US. Catalyst specific surface area, active component content, pore volume as well as size play an important role in affecting the performance of catalyst activity. Active component dissolution was accelerated because of ultrasound process while the deterioration processes, such as the decreasing specific surface area and pore volume as well as the increasing carbon deposition were attenuated.

Key words： water treatment catalytic oxidation ultrasound phenol CuO-Ce/Al₂O₃

Received: 10 May 2016

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X506

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	Articles by authors
	ZHANG Ya-ping
	ZHANG Jin-li
	WU Jing-jing
	CHI Ming-di
	SU Sha-sha

Cite this article:

ZHANG Ya-ping,ZHANG Jin-li,WU Jing-jing等. Degradation of phenol by ultrasound-assisted heterogeneous fenton-like catalytic oxidation[J]. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(12): 3665-3671.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2016/V36/I12/3665

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