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Updated: May 25, 2026

CO2 Photoreduction to CH4 Performance Under Concentrating Solar Light
Published on: June 12, 2019
[Spectroscopic study of photocatalytic mechanism of methanol and CO2]
Feng Hai1, Qian-cheng Zhang, Feng-rong Bai
1Inner Mongolia Key Lab of Industrial Catalysis, Inner Mongolia University of Technology, Huhhot 010051, China. bhaifeng@126.com
Abstract:
Ni-Ti-O/SiO2 catalyst was prepared by impregnation method, and its photocatalytic performance for carbonylation of methanol with CO2 was investigated under UV light. The in-situ IR, XPS and MS were carried out to analyze the possible photocatalytic reaction mechanism. Results indicated that the Ni-Ti-O/SiO2 exhibited good photocatalytic performance for carbonylation of methanol with CO2, the methanol conversion reached up to 24.9%, and the selectivity for the carbonylated products was more than 60% within 180 min reaction time. The catalyst characterization results showed that the O==C .--O- and CH3OC(O)* might be important intermediate in the carbonylation of methanol with CO2.
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