DICP OpenIR
CuO/TiO2 heterojunction composites: an efficient photocatalyst for selective oxidation of methanol to methyl formate
Shi, Quanquan1,2; Ping, Guicheng1; Wang, Xiaojia1; Xu, Hui1; Li, Jingmei1; Cui, Jiaqi1; Abroshan, Hadi3,4,5; Ding, Hongjing1; Li, Gao2
Corresponding AuthorXu, Hui(yqfxxuhui@163.com) ; Abroshan, Hadi(hadi.abroshan@chemistry.gatech.edu) ; Li, Gao(gaoli@dicp.ac.cn)
Source PublicationJOURNAL OF MATERIALS CHEMISTRY A
2019-02-07
ISSN2050-7488
DOI10.1039/c8ta09439j
Volume7Issue:5Pages:2253-2260
Funding ProjectNational Natural Science Foundation of China[21665020] ; Natural Science Foundation of Inner Mongolia Autonomous Region[2018BS02004] ; Program of Higher-level Talents of Inner Mongolia Agricultural University[NDYB2016-03]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; Program of Higher-level Talents of Inner Mongolia Agricultural University
WOS SubjectChemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Energy & Fuels ; Materials Science
WOS KeywordANATASE TIO2 ; GAS-PHASE ; NANOPARTICLES ; CATALYSTS ; H-2 ; PERFORMANCE ; NANOFIBERS ; GENERATION ; REDUCTION ; TITANIA
AbstractThis study demonstrates the synthesis of an efficient photocatalyst, CuO/TiO2 heterojunction, for selective aerobic photo-oxidation of methanol to methyl formate. The CuO nanoparticles (size: 3.5 +/- 1.0 nm) are particularly deposited at the {101} facet of anatase TiO2 nanosheets to minimize recombination of photo-generated electrons/holes. The photocatalysts are characterized by different methods, including powder X-ray diffraction (XRD), transmission electron microscopy (TEM), UV-vis spectroscopy, X-ray photoelectron spectroscopy (XPS), photoluminescence spectroscopy, and hydrogen temperature-programmed reduction (H-2-TPR). The heterojunction catalysts exhibit an excellent photocatalytic performance under mild conditions (i.e., 25-45 degrees C and gas reactions under UV irradiation with a wavelength of 365 nm) for the selective photo-oxidation of methanol using 0.5 vol% oxygen (O-2) as an oxidizing agent. The 5 wt% CuO/TiO2 photocatalyst exhibits a decent 95% methanol conversion with over 85% selectivity towards the formation of methyl formate. The by-product of the reaction is found to be merely CO2, which can be readily eliminated from the product. The formation rate for the methyl formate is 10.8 mmol g(-1) h(-1) at 25 degrees C, which is considerably higher than that for the corresponding CuO and TiO2 nanosheets as well as for conventional catalysts. The superior catalytic activity of the CuO/TiO2 is associated with its unique electronic structure and the synergistic effects at the interface of the photocatalysts' components. The results of this study offer guidelines for design of a new synthetic strategy for preparation of efficient photocatalysts for selective oxidation of methanol to methyl formate and related reactions.
Language英语
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Natural Science Foundation of Inner Mongolia Autonomous Region ; Program of Higher-level Talents of Inner Mongolia Agricultural University ; Program of Higher-level Talents of Inner Mongolia Agricultural University
WOS IDWOS:000457546000032
PublisherROYAL SOC CHEMISTRY
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/166073
Collection中国科学院大连化学物理研究所
Corresponding AuthorXu, Hui; Abroshan, Hadi; Li, Gao
Affiliation1.Inner Mongolia Agr Univ, Coll Sci, Hohhot 010018, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Stanford Univ, Dept Chem Engn, SUNCAT Ctr Interface Sci & Catalysis, Stanford, CA 94305 USA
4.Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA
5.Georgia Inst Technol, Atlanta, GA 30332 USA
Recommended Citation
GB/T 7714
Shi, Quanquan,Ping, Guicheng,Wang, Xiaojia,et al. CuO/TiO2 heterojunction composites: an efficient photocatalyst for selective oxidation of methanol to methyl formate[J]. JOURNAL OF MATERIALS CHEMISTRY A,2019,7(5):2253-2260.
APA Shi, Quanquan.,Ping, Guicheng.,Wang, Xiaojia.,Xu, Hui.,Li, Jingmei.,...&Li, Gao.(2019).CuO/TiO2 heterojunction composites: an efficient photocatalyst for selective oxidation of methanol to methyl formate.JOURNAL OF MATERIALS CHEMISTRY A,7(5),2253-2260.
MLA Shi, Quanquan,et al."CuO/TiO2 heterojunction composites: an efficient photocatalyst for selective oxidation of methanol to methyl formate".JOURNAL OF MATERIALS CHEMISTRY A 7.5(2019):2253-2260.
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