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المؤلفLe Minh Tri, Nguyen
المؤلفTrung, Do Quang
المؤلفVan Thuan, Doan
المؤلفDieu Cam, Nguyen Thi
المؤلفAl Tahtamouni, Talal
المؤلفPham, Thanh Dong
المؤلفDuc, Dao Sy
المؤلفThanh Tung, Mai Hung
المؤلفVan Ha, Hoang
المؤلفAnh Thu, Ngo Hong
المؤلفTrang, Hoang Thu
تاريخ الإتاحة2023-08-24T11:12:56Z
تاريخ النشر2020-07-17
اسم المنشورInternational Journal of Hydrogen Energy
المعرّفhttp://dx.doi.org/10.1016/j.ijhydene.2019.06.132
الاقتباسTri, N. L. M., Van Thuan, D., Cam, N. T. D., Al Tahtamouni, T., Pham, T. D., Duc, D. S., ... & Trang, H. T. (2020). The advanced photocatalytic performance of V doped CuWO4 for water splitting to produce hydrogen. International Journal of Hydrogen Energy, 45(36), 18186-18194.‏
الرقم المعياري الدولي للكتاب03603199
معرّف المصادر الموحدhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85068888665&origin=inward
معرّف المصادر الموحدhttp://hdl.handle.net/10576/46752
الملخصIn the study, we successfully conducted vanadium doping to improve photocatalytic performance of the CuWO4 for water splitting to produce hydrogen. The doping mechanism, optimal doping ratio and material stability were investigated by various characterization methods and water splitting experiments. We found that the V substituted several W elements of the CuWO4 crystal. In the V–CuWO4, V dopant existed in form of the V5+, which created new energy level between the conduction band (CB) and the valence band (VB) of the CuWO4 to improve charge transfer as well as to prevent the e− and h+ recombination of the material. The substitution of W by V dopant also led the formation of Cu+ and W5+ in the CuWO4 crystal. The formation of Cu+ and W5+ in the CuWO4 crystal not only narrowed the energy band gap but also increased the CB potential of the material. Therefore, the V–CuWO4 generated significant amount of e− under visible light and the generated e− was strong enough to react with H+ to produce H2. The optimal V/W ratio for maximum improving photocatalytic performance of the CuWO4 was 6 wt%. Finally, we investigated that our prepared V–CuWO4 showed high stability during long-term water splitting process.
راعي المشروعThis research is funded by Vietnam National Foundation for Science and Technology Development (NAFOSTED) under grant number 104.05-2018.27 .
اللغةen
الناشرElsevier Ltd
الموضوعCuWO 4
Doping mechanism
Hydrogen
Stability
Vanadium doping
العنوانThe advanced photocatalytic performance of V doped CuWO4 for water splitting to produce hydrogen
النوعArticle
الصفحات18186-18194
رقم العدد36
رقم المجلد45
dc.accessType Abstract Only


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