光电催化协同还原CO<sub>2</sub>和氧化有机污染物

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Abstract Rising atmospheric levels of carbon dioxide and the depletion of fossil fuel reserves raised serious concerns about the ensuing effects on the global climate and future energy supply. Utilized the abundant solar energy to convert CO₂ into fuels such as methane or formic acid, which could address both problems simultaneously as well as provide a convenient means of energy stroage. In this paper, good performance of UIO-66-NH₂-ZnO-Ni catalyst was obtained through vertical aligned ZnO nanosheets arrays grown on the Ni foam by constant voltage deposition method followed by UIO-66-NH₂ grafted into ZnO by solvent-thermal method. It turned out that the symmetrical ZnO growed from all directions on Ni foam and then modified by UIO-66-NH₂ at the surface properly from the SEM images. CO₂ could be absorbed into the pores easily because of the high affinity of UIO-66-NH₂ which reduced the hydrogen evolution ability successfully. The catalyst also had excellent photoelectron-catalytic reduction performance and the major product was formic acid. The highest yield of formic acid was 30.98mmol in three hours.

Key words： constant voltage deposition CO₂ UIO-66-NH₂ photoelectrocatalytic formic acid

Received: 02 November 2017

X701.7

Corresponding Authors: 李贵生,教授,lanhai90@163.com E-mail: lanhai90@163.com

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	Articles by authors
	CUI Ying-ying
	CUI Li
	CUI Mei-gui
	YANG Pei-qing
	YANG Tie-jiang
	LI Gui-sheng
	LI He-xing

Cite this article:

CUI Ying-ying,CUI Li,CUI Mei-gui等. Photo-electrochemical synergetic reduction of CO₂ and oxidation of organic pollutants[J]. CHINA ENVIRONMENTAL SCIENCECE, 2018, 38(6): 2075-2081.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2018/V38/I6/2075

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