Pulsed laser-induced photocatalytic reduction of greenhouse gas CO2 into methanol: A value-added hydrocarbon product over SiC.
CO(2) was converted into value-added hydrocarbons (methanol) by laser-induced photocatalytic reduction of CO(2) over commercially available silicon-carbide (SiC) granules as catalyst. The conversion of CO(2) was carried out in a glass reactor having quartz window and equipped with stirring system and was provided with continuous CO(2) flow at ambient conditions. Laser radiations of 355 nm, which were generated by third harmonics of Nd:YAG laser (1060 nm) were applied as an excitation source. The methanol yield as a function of irradiation time and catalysts dosage were monitored by the gas chromatographic analysis (GD-FID) of water samples collected at prescribed intervals. A specific GC column was used which separated hydrocarbons efficiently without any interference from water present in the sample. The study indicated that the commercially available SiC granular material is an excellent catalyst in laser-induced photocatalytic conversion of CO(2) into high value hydrocarbons.
Laser Research Group, Physics Department and Center of Excellence in Nanotechnology, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia. magondal@kfupm.edu.sa
Mohammed A
MA
Gondal
Mohammad A
MA
Ali
Xiao F
XF
Chang
Kai
K
Shen
Qing Y
QY
Xu
Zain H
ZH
Yamani
D000393:Air Pollutants / Q000737:chemistry*; D017554:Carbon Compounds, Inorganic / Q000737:chemistry; D002245:Carbon Dioxide / Q000737:chemistry*; D002384:Catalysis; D007834:Lasers; D000432:Methanol / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D017655:Silicon Compounds / Q000737:chemistry
D000393:Air Pollutants; D017554:Carbon Compounds, Inorganic; D017655:Silicon Compounds; D002245:Carbon Dioxide; C022088:silicon carbide; D000432:Methanol