The development of environmentally friendly materials has taken a great perspective for photocatalytic applications.Scientists in this field are always concerned in nding a new photocatalyst with some noble properties to enhance the photocatalytic performance. Among various photocatalysts,7 TiO2 is widely used for CO2 photoreduction because of its comparatively
low cost, low toxicity and photocorrosion resistance.8 In order to enhance the photocatalytic activity several approaches, including doping with transition metals and noble metals,9–11
and mixing with another metal oxide with TiO2, have been considered.12 However, the reported methanol conversion rate for TiO2 in vapor phase CO2 photoreduction is only 0.02 mmol g cat1 h1,13 which is far below the actual requirement. While few selected TiO2-based catalysts like enzyme modied TiO2,14 Ti-SBA-15,15 Ag-loaded ALa4Ti4O15 (A ¼ Ca, Sr and Ba)16 and Pt-NP loaded TiO4 (ref. 17) were reported to have a high hydrocarbon formation rate in gas phase CO2 photocatalytic reduction.
The development of environmentally friendly materials has taken a great perspective for photocatalytic applications.Scientists in this field are always concerned in nding a new photocatalyst with some noble properties to enhance the photocatalytic performance. Among various photocatalysts,7 TiO2 is widely used for CO2 photoreduction because of its comparativelylow cost, low toxicity and photocorrosion resistance.8 In order to enhance the photocatalytic activity several approaches, including doping with transition metals and noble metals,9–11and mixing with another metal oxide with TiO2, have been considered.12 However, the reported methanol conversion rate for TiO2 in vapor phase CO2 photoreduction is only 0.02 mmol g cat1 h1,13 which is far below the actual requirement. While few selected TiO2-based catalysts like enzyme modied TiO2,14 Ti-SBA-15,15 Ag-loaded ALa4Ti4O15 (A ¼ Ca, Sr and Ba)16 and Pt-NP loaded TiO4 (ref. 17) were reported to have a high hydrocarbon formation rate in gas phase CO2 photocatalytic reduction.
การแปล กรุณารอสักครู่..