Towards visible-light photocatalysis for environmental applications: band-gap engineering versus photons absorption-a review.

Publisher: Springer Country of Publication: Germany NLM ID: 9441769 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1614-7499 (Electronic) Linking ISSN: 09441344 NLM ISO Abbreviation: Environ Sci Pollut Res Int Subsets: MEDLINE

Publication: <2013->: Berlin : Springer
Original Publication: Landsberg, Germany : Ecomed

Light* ; Photons*; Engineering/*methods ; Environmental Pollution/*prevention & control; Carbon/chemistry ; Catalysis ; Semiconductors ; Titanium/chemistry

A range of different studies has been performed in order to design and develop photocatalysts that work efficiently under visible (and near-infrared) irradiation as well as to improve photons absorption with improved reactor design. While there is consensus on the importance of photocatalysis for environmental applications and the necessity to utilized solar irradiation (or visible-light) as driving force for these processes, it is not yet clear how to get there. Discussion on the future steps towards visible-light photocatalysis for environmental application is of great interest to scientific and industrial communities and the present paper reviews and discusses the two main approaches, band-gap engineering for efficient solar-activated catalysts and reactor designs for improved photons absorption. Common misconceptions and drawbacks of each technology are also examined together with insights for future progress.

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Keywords: Air treatment; Band-gap engineering; Photoreactor design; Solar irradiation; Visible-light photocatalysis; Water treatment

15FIX9V2JP (titanium dioxide)
7440-44-0 (Carbon)
D1JT611TNE (Titanium)

Date Created: 20180922 Date Completed: 20190329 Latest Revision: 20210723

20231215

10.1007/s11356-018-3117-5

30238261