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Odhiambo VO, Mustafa CRM, Thong LB, Kónya Z, Cserháti C, Erdélyi Z, Lukác IE, Szilágyi IM. Preparation of TiO 2/WO 3/C/N Composite Nanofibers by Electrospinning Using Precursors Soluble in Water and Their Photocatalytic Activity in Visible Light. NANOMATERIALS 2021; 11:nano11020351. [PMID: 33535415 PMCID: PMC7912636 DOI: 10.3390/nano11020351] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 01/23/2021] [Accepted: 01/25/2021] [Indexed: 01/08/2023]
Abstract
Extending the absorption range of TiO2 nanofibers to visible light is a great improvement of the photocatalytic property of TiO2. In this study, TiO2/WO3/C/N nanofibers were prepared by electrospinning using precursors soluble in water then annealing in argon. Titanium(IV) bis(ammonium lactato)dihydroxide (TiBALDH) and ammonium metatungstate (AMT) were used as the precursor for TiO2 and WO3 respectively. Different volume ratios of the precursors were added to a solution of PVP before electrospinning. The fibers were studied by XPS, SEM-EDX, TEM, FTIR, XRD, Raman spectroscopy and UV–VIS diffuse reflectance spectroscopy (DRS). The photocatalytic degradation of methylene blue by the fibers in visible light was investigated. The fibers had anatase TiO2 and monoclinic WO3. Based on UV–VIS DRS and Kubelka-Munk function the fibers could absorb visible light. Moreover, 100% TiBALDH had an indirect band gap of 2.9 eV, and the band gap decreased with increase in AMT, i.e., for 0% TiBALDH, band gap was 2.4 eV. The fibers degraded methylene blue dye in visible light, and 90% TiBALDH had the highest photocatalytic activity, i.e., it degraded 40% of the dye after 240 min.
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Affiliation(s)
- Vincent Otieno Odhiambo
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary; (C.R.M.M.); (L.B.T.)
- Correspondence: (V.O.O.); (I.M.S.)
| | - Chra Rasool M. Mustafa
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary; (C.R.M.M.); (L.B.T.)
| | - Le Ba Thong
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary; (C.R.M.M.); (L.B.T.)
| | - Zoltán Kónya
- Department of Applied and Environmental Chemistry, University of Szeged, Rerrich Béla tér 1., H-6720 Szeged, Hungary;
| | - Csaba Cserháti
- Department of Solid-State Physics, Faculty of Sciences and Technology, University of Debrecen, Bem ter 18/b, H-4026 Debrecen, Hungary; (C.C.); (Z.E.)
| | - Zoltán Erdélyi
- Department of Solid-State Physics, Faculty of Sciences and Technology, University of Debrecen, Bem ter 18/b, H-4026 Debrecen, Hungary; (C.C.); (Z.E.)
| | - István Endre Lukác
- Research Institute for Technical Physics and Materials Science, Hungarian Academy of Sciences, Konkoly Thege M. út 29-33., H-1121 Budapest, Hungary;
| | - Imre Miklós Szilágyi
- Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, Szent Gellért tér 4., H-1111 Budapest, Hungary; (C.R.M.M.); (L.B.T.)
- Correspondence: (V.O.O.); (I.M.S.)
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Wu ZG, Ren ZM, Li L, Lv L, Chen Z. Hydrothermal synthesis of TiO2 quantum dots with mixed titanium precursors. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117328] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Taylor M, Pullar RC, Parkin IP, Piccirillo C. Nanostructured titanium dioxide coatings prepared by Aerosol Assisted Chemical Vapour Deposition (AACVD). J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112727] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Ionic liquid-assisted synthesis of Pt nano thin films at toluene–water interface: Enhanced CO tolerance in methanol fuel cells and adsorptive removal of p-nitrophenol from water. Polyhedron 2018. [DOI: 10.1016/j.poly.2018.06.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Truong QD, Dien LX, Vo DVN, Le TS. Controlled synthesis of titania using water-soluble titanium complexes: A review. J SOLID STATE CHEM 2017. [DOI: 10.1016/j.jssc.2017.04.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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