CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Efficient Photocatalytic Reduction of CO2 Using Carbon-Doped Amorphous Titanium Oxide
Wang, P; Yin, GH; Bi, QY; Huang, XY; Du, XL; Zhao, W; Huang, FQ
2018
Source PublicationCHEMCATCHEM
ISSN1867-3880
Volume10Issue:17Pages:3854-3861
Subtype期刊论文
AbstractCO2-related solar to chemical conversions have gained extensive interest due to the great concerns on renewable energy utilization. Here, we have demonstrated a new synthetic route to C-doped amorphous titanium oxide using a facile citric acid assisted sol-gel method for efficient photocatalytic reduction of CO2. The synthesized amorphous material exhibits a mesoporous structure with high specific surface area and a significantly narrowed band gap of 2.1eV, which are crucial for solar light harvesting and adsorption/chemical activation of CO2 for energy transformation. The amorphization, mesoporous structure, and the band structure of the C-doped samples were also successfully tuned by controlling the annealing temperatures. The optimized catalyst annealed at 300 degrees C shows the highest specific surface area, favorable visible-light response as well as the considerable performance for CO2 photoreduction. Moreover, the further treatment of Al reduction can induce numerous surface oxygen vacancies on the amorphous sample and thus efficiently restrain the recombination of photogenerated carriers. Of significant importance is that the Al-reduced catalyst achieves excellent performance with the space-time yield of CH4 and CO of 4.1 and 2.5molg(-1)h(-1) for solar light, and 0.53 and 0.63molg(-1)h(-1) for visible light, respectively. This sample is also stable for photocatalytic CO2 transformation.
KeywordVISIBLE-LIGHT IRRADIATION HIGH SOLAR ABSORPTION HYDROGEN GENERATION TIO2 NANOMATERIALS CHARGE SEPARATION OXYGEN VACANCIES BLACK TITANIA ANATASE TIO2 RHODAMINE-B DIOXIDE
DOI10.1002/cctc.201800476
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/30924
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China
2.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 200031, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Appl Phys, Key Lab Interfacial Phys & Technol, Shanghai 201800, Peoples R China
4.Peking Univ, Coll Chem & Mol Engn, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China
5.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
Recommended Citation
GB/T 7714
Wang, P,Yin, GH,Bi, QY,et al. Efficient Photocatalytic Reduction of CO2 Using Carbon-Doped Amorphous Titanium Oxide[J]. CHEMCATCHEM,2018,10(17):3854-3861.
APA Wang, P.,Yin, GH.,Bi, QY.,Huang, XY.,Du, XL.,...&Huang, FQ.(2018).Efficient Photocatalytic Reduction of CO2 Using Carbon-Doped Amorphous Titanium Oxide.CHEMCATCHEM,10(17),3854-3861.
MLA Wang, P,et al."Efficient Photocatalytic Reduction of CO2 Using Carbon-Doped Amorphous Titanium Oxide".CHEMCATCHEM 10.17(2018):3854-3861.
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