Enhanced photocatalytic activity of electrospun TiO2/Ag@ SiO2 inorganic composite nanofibers toward colored organic dye
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Inorganic composite nanofibers consisting of TiO2, metallic Ag, and SiO2 nanoparticles were prepared using electrospinningto enhance photocatalysis of a colored organic dye. Inorganic composite nanofibers have a high surface-area-to-mass ratioand are suitable for various applications in catalysis, sensors, and environmental remediation. In this study, TiO2 and metallicAg nanoparticles were homogeneously embedded in a phenylsilsesquioxane matrix by mixing molecular precursors such astitanium diisopropoxide bis(acetylacetonate) and Ag-neodecanoante with phenyltrimethylsilane-based organically modifiedsilica particles dissolved in dimethylformamide. Electrospinning transformed these precursor mixtures to hybrid compositenanofibers. Subsequent application of heat at 1000 °C converted the hybrid composite nanofibers to inorganic compositenanofibers. Metallic Ag nanoparticles were used in the design of the composite photocatalyst to enhance its photocatalyticactivity by exploiting the band gap overlap between metallic Ag and semiconducting TiO2 particles. Inorganic compositenanofibers without having Ag nanoparticles were also prepared for comparison purposes using only Ti and Si precursors. Rhodamine B was selected to test the photocatalytic activities of both inorganic composite nanofibers, and ultraviolet (UV)-visible light spectroscopy was used to investigate the photocatalytic activities of the inorganic composite nanofibers. UnderUV light, TiO2/Ag@SiO2 inorganic composite nanofibers were more efficient than TiO2@SiO2 inorganic composite nanofibers. X-ray diffraction, transmission electron microscopy–energy-dispersive spectroscopy, and X-ray photoelectron spectroscopyconfirmed the uniform distribution of TiO2 and Ag nanoparticles in the corresponding composite nanofibers.
Abstract
Inorganic composite nanofibers consisting of TiO2, metallic Ag, and SiO2 nanoparticles were prepared using electrospinningto enhance photocatalysis of a colored organic dye. Inorganic composite nanofibers have a high surface-area-to-mass ratioand are suitable for various applications in catalysis, sensors, and environmental remediation. In this study, TiO2 and metallicAg nanoparticles were homogeneously embedded in a phenylsilsesquioxane matrix by mixing molecular precursors such astitanium diisopropoxide bis(acetylacetonate) and Ag-neodecanoante with phenyltrimethylsilane-based organically modifiedsilica particles dissolved in dimethylformamide. Electrospinning transformed these precursor mixtures to hybrid compositenanofibers. Subsequent application of heat at 1000 °C converted the hybrid composite nanofibers to inorganic compositenanofibers. Metallic Ag nanoparticles were used in the design of the composite photocatalyst to enhance its photocatalyticactivity by exploiting the band gap overlap between metallic Ag and semiconducting TiO2 particles. Inorganic compositenanofibers without having Ag nanoparticles were also prepared for comparison purposes using only Ti and Si precursors. Rhodamine B was selected to test the photocatalytic activities of both inorganic composite nanofibers, and ultraviolet (UV)-visible light spectroscopy was used to investigate the photocatalytic activities of the inorganic composite nanofibers. UnderUV light, TiO2/Ag@SiO2 inorganic composite nanofibers were more efficient than TiO2@SiO2 inorganic composite nanofibers. X-ray diffraction, transmission electron microscopy–energy-dispersive spectroscopy, and X-ray photoelectron spectroscopyconfirmed the uniform distribution of TiO2 and Ag nanoparticles in the corresponding composite nanofibers.
참고문헌 (51)
- J. Zhang, , J. Phys. Chem. C, 122, pp.8946~8953 (2018)
- J. Pan, , Appl. Catal. B, 242, pp.92~99 (2019)
- X. Huang, , J. Mol. Liq, 322, pp.114965~ (2021)
- S. J. Bu, , J. Eur. Ceram. Soc, 25, pp.673~679 (2005)
- M. Wark, , Microporous Mesoporous Mater, 84, pp.247~253 (2005)
- Z. Ma, , Appl. Catal. A, 327, pp.226~237 (2007)
- J. Yang, , J. Hazard. Mater, 137, pp.952~958 (2006)
- R. Hatefi, , Adv. Powder Technol, 32, pp.2410~2422 (2021)
- Y. Kang, , J. Ceram. Process. Res, 14, pp.419~425 (2013)
- Q. Du, , ACS Catal, 4, pp.144~151 (2013)
- C. Song, , J. Ceram. Process. Res, 14, pp.653~657 (2013)
- K. -Y. A. Lin, , Chem. Eng. Sci, 168, pp.372~379 (2017)
- S. Akhavan-Mahdavi, , Adv. Colloid Interface Sci, 325, pp.103111~ (2024)
- Q. Zhang, , J. Aerosol Sci, 41, pp.230~236 (2010)
- X. Li, , Adv. Eng. Mater, 11, pp.2000845~ (2020)
- A. Z. Sadek, , Thin Solid Films, 518, pp.1294~1298 (2009)
- V. Ganapathy, , 195, pp.5138~5143 (2010)
- Y. Lara-López, , J. Ceram. Process. Res, 20, pp.24~29 (2019)
- A. R. Malagutti, , Appl. Catal. B, 90, pp.205~212 (2009)
- P. Qu, , J. Mol. Catal. A Chem, 129, pp.257~268 (1998)
- R. Libanori, , J. Sol-Gel Sci. Technol, 49, pp.95~100 (2009)
- D. Li, , Nano Lett, 3, pp.555~560 (2003)
- T. He, , Polymer, 50, pp.3031~3036 (2009)
- S. U. M. Khan, , Science, 297, pp.2243~2245 (2002)
- M. Pelaez, , Appl. Catal. B, 125, pp.331~349 (2012)
- J. -M. Herrmann, , Appl. Catal. B, 13, pp.219~228 (1997)
- B. Li, , J. Catal, 329, pp.368~378 (2015)
- S. Ryu, , Compos. Sci. Technol, 117, pp.9~17 (2015)
- J. Ma, , Microporous Mesoporous Mater, 144, pp.97~104 (2011)
- E. D. Jeong, , J. Ceram. Process. Res, 9, pp.250~253 (2008)
- Y. Song, , J. Ceram. Process. Res, 20, pp.182~186 (2019)
- Y. Song, , Appl. Surf. Sci, 542, pp.148584~ (2021)
- M. Tahir, , J. CO2 Util, 37, pp.134~146 (2020)
- J. Shen, , Appl. Catal. B, 205, pp.11~18 (2017)
- Y. Zhang, , Ceram. Int, 43, pp.3118~3126 (2017)
- L. Zhang, , Ceram. Int, 43, pp.5450~5456 (2017)
- C. Y. Jung, , J. Colloid Interface Sci, 367, pp.67~73 (2012)
- A. Jitianu, , J. Am. Ceram. Soc, 92, pp.36~40 (2009)
- J. S. Kim, , J. Nanopart. Res, 20, pp.73~ (2018)
- D. D. Evanoff Jr, , Chemphyschem, 6, pp.1221~1231 (2005)
- X. Li, , J. Environ. Chem. Eng, 9, pp.106133~ (2021)
- Z. Duan, , Sci. Rep, 9, pp.8008~ (2019)
- X. Long, , Opt. Express, 32, pp.21304~21326 (2024)
- D. Nagy, , J. Environ. Manage, 260, pp.110175~ (2020)
- P. Viswanathamurthi, , Inorg. Chem. Commun, 7, pp.679~682 (2004)
- S. F. Resende, , J. Colloid Interface Sci, 433, pp.211~217 (2014)
- Z. Wang, , Appl. Surf. Sci, 533, pp.147383~ (2020)
- A. Al Baroot, , J. Phys. Chem. Solids, 180, pp.111489~ (2023)
- H. -R. Xu, , J. Ceram. Process. Res, 22, pp.179~185 (2021)
- L. Aoudjit, , Polymers, 13, pp.3718~ (2021)
- E. M. Abdelsalam, , Environ. Sci. Pollut. Res, 27, pp.35828~35836 (2020)