Journal
CHEMICAL PHYSICS LETTERS
Volume 700, Issue -, Pages 57-63Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2018.03.049
Keywords
CO2; Cu2O/TiO2; Photoelectroreduction
Funding
- National Natural Science Foundation of China [21767015]
- National Key R&D Program of China, Collaborative Innovation Center of Western Typical Industry Environmental Pollution Control [2017YFC0210504]
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Cu2O/TiO2 nanopowders were prepared and used as thin film electrode raw materials for CO2 photoelectroreduction. Characterization results from XRD, TEM, UV-Vis and BET show that Cu2O/TiO2 composites have regular morphology, narrow band gap, excellent textural properties, and exhibits marked response of visible light. The photoelectrocatalytic results show that CO2 can be reduced to formaldehyde (i.e., intermediate) and finally methanol (i.e., end product). In addition, the CO2 photoelectroreduction pathway and the mechanism of photoelectrocatalysis are discussed. In summary, the work reports a potential method of CO2 reduction by visible-light photocatalysis without an external bias. (C) 2018 Elsevier B.V. All rights reserved.
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