KMS Shanghai Institute of Ceramics，Chinese Academy of Sciences
| High Selective Oxidation of Benzyl Alcohol to Benzylaldehyde and Benzoic Acid with Surface Oxygen Vacancies on W18O9/Holey Ultrathin g-C3N4 Nanosheets | |
| Xiao, Cailin; Zhang, Ling; Hao, Hongchang; Wang, Wenzhong | |
| 2019-04-01 | |
| Source Publication | ACS SUSTAINABLE CHEMISTRY & ENGINEERING
 |
| ISSN | 2168-0485 |
| Volume | 7Issue:7Pages:7268 |
| Subtype | Article |
| Abstract | Synthesis of intermediates and fine chemicals for the selective oxidation of alcohols to corresponding aldehydes and carboxylic acid is an extremely significant chemical reaction. Herein, a binary W18O9/holey ultrathin g-C3N4 nanosheets (HU-CNS) nanocomposite was prepared via a solvothermal method and it exhibited excellent photocatalytic activity for the selective oxidation of benzyl alcohol in an aqueous medium under room temperature and atmospheric pressure. The as-synthesized W18O49/HU-CNS composites showed higher selectivity and conversion efficiency compared to pure g-C3N4, which was mainly ascribed to the moderate adsorption capacity of benzaldehyde on the composite. The high conversion originates primarily from the following: (1) the W18O49/HU-CNS nanocomposite possessing a stronger ability to chemisorb alcohol than g-C3N4; (2) the oxygen vacancies on W18O49 nanowires not only supplied active centers for the activation of O-2 to O-2(center dot-) but also extended the range of light response from the visible to the near-infrared region; (3) the interfacial photogenerated electrons within W18O49/HU-CNS follow a type-II mechanism, which provides a fast transfer route for photogenerated electrons to achieve efficient charge separation. Furthermore, the direct conversion of benzyl alcohol to benzoic acid with high selectivity (>99%) and conversion (>90%) was obtained in the dilute alkaline condition (0.01 M KOH). |
| Keyword | g-C3N4 Tungsten oxide Selective oxidation Benzyl alcohol Photocatalyst |
| DOI | 10.1021/acssuschemeng.9b00299 |
| Language | 英语 |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Engineering |
| Publisher | AMER CHEMICAL SOC |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sic.ac.cn/handle/331005/27222 |
| Collection | 中国科学院上海硅酸盐研究所 |
| Recommended Citation GB/T 7714 | Xiao, Cailin,Zhang, Ling,Hao, Hongchang,et al. High Selective Oxidation of Benzyl Alcohol to Benzylaldehyde and Benzoic Acid with Surface Oxygen Vacancies on W18O9/Holey Ultrathin g-C3N4 Nanosheets[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(7):7268. |
| APA | Xiao, Cailin,Zhang, Ling,Hao, Hongchang,&Wang, Wenzhong.(2019).High Selective Oxidation of Benzyl Alcohol to Benzylaldehyde and Benzoic Acid with Surface Oxygen Vacancies on W18O9/Holey Ultrathin g-C3N4 Nanosheets.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(7),7268. |
| MLA | Xiao, Cailin,et al."High Selective Oxidation of Benzyl Alcohol to Benzylaldehyde and Benzoic Acid with Surface Oxygen Vacancies on W18O9/Holey Ultrathin g-C3N4 Nanosheets".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.7(2019):7268. |
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