气候变化领域集成服务门户(CCPortal): Nature-based catalyst for visible-light-driven photocatalytic CO2 reduction

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DOI	10.1039/c8ee01781f
	Nature-based catalyst for visible-light-driven photocatalytic CO2 reduction
	Jiang Z.; Sun H.; Wang T.; Wang B.; Wei W.; Li H.; Yuan S.; An T.; Zhao H.; Yu J.; Wong P.K.
发表日期	2018
ISSN	17545692
起始页码	2382
结束页码	2389
卷号	11 期号:9
英文摘要	We demonstrate a rational fabrication of hierarchical treated rape pollen (TRP), a biological material used as a metal-free catalyst for visible-light-driven photocatalytic CO2 reduction. The TRP catalyst exhibits excellent visible-light-driven carbon monoxide (CO) formation of 488.4 μmol h-1 g-1 with 98.3% selectivity, using no co-catalyst or sacrifice reagent, accompanied by a high quantum efficiency of over 6.7% at 420 nm. The CO evolution rate obtained on the TRP catalyst is roughly 29.4 and 25.6 times higher than those of the most commonly reported photocatalysts, such as g-C3N4 (16.6 μmol h-1 g-1) and P25 TiO2 (19.1 μmol h-1 g-1), and is the highest among the reported carbon-based photocatalysts. In situ Fourier transform infrared spectrometry analysis disclosed that formic acid is a major intermediate. The considerable photocatalytic CO2 reduction activity observed on the TRP catalyst can be ascribed to the following factors: (i) the unique hollow porous structure of the TRP favours visible light harvesting and CO2 adsorption capacity; and (ii) the interior cavity of the TRP can decrease the diffusion length of the photogenerated reactive charge carrier from bulk to surface, thus promoting charge carrier separation. We anticipate that such a nature-based sustainable photocatalyst can provide new insights to facilitate the design of metal-free catalysts with outstanding visible-light-driven CO2 reduction performance. © 2018 The Royal Society of Chemistry.
英文关键词	Biological materials; Biology; Carbon dioxide; Carbon monoxide; Charge carriers; Fourier transform infrared spectroscopy; Light; Photocatalysts; Titanium dioxide; Carrier separation; Diffusion length; Fourier transform infrared spectrometry; High quantum efficiency; Metal-free catalysts; Photo-catalytic; Porous structures; Visible-light-driven; Catalyst selectivity; adsorption; carbon dioxide; carbon monoxide; catalysis; catalyst; detection method; formic acid; light intensity; performance assessment; reduction; separation; visible spectrum
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190150
作者单位	Institute for Energy Research, Jiangsu University, Zhenjiang, 212013, China; School of Life Sciences, Chinese University of Hong Kong, Shatin NT, Hong Kong; Institute of Environmental Health and Pollution Control, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou, 510006, China; Centre for Clean Environment and Energy, Gold Coast Campus, Griffith UniversityQLD 4222, Australia; State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
推荐引用方式 GB/T 7714	Jiang Z.,Sun H.,Wang T.,et al. Nature-based catalyst for visible-light-driven photocatalytic CO2 reduction[J],2018,11(9).
APA	Jiang Z..,Sun H..,Wang T..,Wang B..,Wei W..,...&Wong P.K..(2018).Nature-based catalyst for visible-light-driven photocatalytic CO2 reduction.Energy & Environmental Science,11(9).
MLA	Jiang Z.,et al."Nature-based catalyst for visible-light-driven photocatalytic CO2 reduction".Energy & Environmental Science 11.9(2018).