兰州大学机构库
Ce4+/Ce3+ Redox Effect-Promoted CdS/CeO2 Heterojunction Photocatalyst for the Atom Economic Synthesis of Imines under Visible Light
Sun, Fangkun1; Song, Jie1; Wen, He2; Cao, Xiao1; Zhao, Feng1; Qin, Jiaheng1; Mao, Weiwen1; Tang, Xiaoqi1; Dong, Linkun1; Long, Yu1
2023-10-19
Source PublicationINORGANIC CHEMISTRY   Impact Factor & Quartile
ISSN0020-1669 ; 1520-510X
EISSN1520-510X
Volume62Issue:43Pages:17961-17971
page numbers11
AbstractThe employment of stoichiometric alcohols and amines for imine synthesis under mild and green reaction conditions is still a challenge in the field. In this work, based on our research foundation in the thermocatalytic synthesis of imines over ceria, a CdS/CeO2 heterojunction photocatalyst was constructed and successfully realized the atom-economic synthesis of imines under visible light without additives at room temperature. Mechanistic experiments and corresponding characterizations indicated that the CdS/CeO2 heterojunction can improve the separation efficiency of photogenerated carriers, which can be further enhanced by the Ce4+/Ce3+ redox pair by rapidly combining photogenerated e(-). The in situ-reduced Ce3+ can better activate O-2 to form Ce-O-O, which, together with h(+), efficiently accelerates alcohol oxidation, which is the rate-determined step for the synthesis of imines via oxidative coupling reaction of alcohol and amine. In addition, our photocatalyst exhibited fairly decent reusability and substrate universality. This work solves problems of using base additives and excess amine or alcohol in the reported photocatalytic systems and provides new insight for designing CeO2-based photocatalytic oxidation catalysts.
KeywordAdditives Amines Cadmium sulfide Heterojunctions II-VI semiconductors Photocatalytic activity Reusability Alcohol oxidation Atom economic Ce 3+ Mechanistics Oxidative coupling reactions Photogenerated carriers Reaction conditions Redox pairs Separation efficiency Visible light
PublisherAMER CHEMICAL SOC
DOI10.1021/acs.inorgchem.3c02907
Indexed BySCIE ; EI
Language英语
WOS Research AreaChemistry
WOS SubjectChemistry, Inorganic & Nuclear
WOS IDWOS:001092727700001
EI Accession Number20234715082849
EI KeywordsCerium oxide
EI Classification Number712.1 Semiconducting Materials ; 714.2 Semiconductor Devices and Integrated Circuits ; 801.4 Physical Chemistry ; 803 Chemical Agents and Basic Industrial Chemicals ; 804 Chemical Products Generally ; 804.1 Organic Compounds ; 804.2 Inorganic Compounds
Original Document TypeArticle
PMID 37857562
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/569429
Collection兰州大学
Corresponding AuthorLong, Yu
Affiliation
1.Lanzhou Univ, Coll Chem & Chem Engn, State Key Lab Appl Organ Chem SKLAOC, Gansu Prov Engn Lab Chem Catalysis, Lanzhou 730000, Peoples R China;
2.PetroChina, Petrochem Res Inst, Lanzhou Petrochem Res Ctr, Lanzhou 730060, Peoples R China
Recommended Citation
GB/T 7714
Sun, Fangkun,Song, Jie,Wen, He,et al. Ce4+/Ce3+ Redox Effect-Promoted CdS/CeO2 Heterojunction Photocatalyst for the Atom Economic Synthesis of Imines under Visible Light[J]. INORGANIC CHEMISTRY,2023,62(43):17961-17971.
APA Sun, Fangkun.,Song, Jie.,Wen, He.,Cao, Xiao.,Zhao, Feng.,...&Long, Yu.(2023).Ce4+/Ce3+ Redox Effect-Promoted CdS/CeO2 Heterojunction Photocatalyst for the Atom Economic Synthesis of Imines under Visible Light.INORGANIC CHEMISTRY,62(43),17961-17971.
MLA Sun, Fangkun,et al."Ce4+/Ce3+ Redox Effect-Promoted CdS/CeO2 Heterojunction Photocatalyst for the Atom Economic Synthesis of Imines under Visible Light".INORGANIC CHEMISTRY 62.43(2023):17961-17971.
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