期刊
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS
卷 24, 期 -, 页码 16-42出版社
ELSEVIER
DOI: 10.1016/j.jphotochemrev.2015.06.001
关键词
Co-2 photoreduction; Photocatalysis; Photocatalytic reactor; Solar fuel production; Titanium dioxide; Artificial photosynthesis
资金
- School of Engineering and Physical Sciences
- Centre for Innovation in Carbon Capture and Storage (EPSRC) at Heriot-Watt University [EP/K021796/1]
- EPSRC [EP/K021796/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K021796/1] Funding Source: researchfish
The continuous combustion of non-renewable fossil fuels and depletion of existing resources is intensifying the research and development of alternative future energy options that can directly abate and process ever-increasing carbon dioxide (CO2) emissions. Since CO2 is a thermodynamically stable compound, its reduction must not consume additional energy or increase net CO2 emissions. Renewable sources like solar energy provide readily available and continuous light supply required for driving this conversion process. Therefore, the use of solar energy to drive CO2 photocatalytic reactions simultaneously addresses the aforementioned challenges, while producing sustainable fuels or chemicals suitable for use in existing energy infrastructure. Recent progress in this area has focused on the development and testing of promising TiO2 based photocatalysts in different reactor configurations due to their unique physicochemical properties for CO2 photoreduction. TiO2 nanostructured materials with different morphological and textural properties modified by using organic and inorganic compounds as photosensitizers (dye sensitization), coupling semiconductors of different energy levels or doping with metals or non-metals have been tested. This review presents contemporary views on state of the art in photocatalytic CO2 reduction over titanium oxide (TiO2) nanostructured materials, with emphasis on material design and reactor configurations. In this review, we discuss existing and recent TiO2 based supports, encompassing comparative analysis of existing systems, novel designs being employed to improve selectivity and photoconversion rates as well as emerging opportunities for future development, crucial to the field of CO2 photocatalytic reduction. The influence of different operating and morphological variables on the selectivity and efficiency of CO2 photoreduction is reviewed. Finally, perspectives on the progress of TiO2 induced photocatalysis for CO2 photoreduction will be presented. (C) 2015 Elsevier B.V. This is an open access article under the CC BY license.
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