Visible light photocatalytic degradation of 4-chlorophenol using vanadium and nitrogen co-doped TiO{sub 2}

Journal Article · Mon Feb 04 23:00:00 EST 2013 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4791020· OSTI ID:22113510

Jaiswal, R.; Kothari, D. C. ^[1]; Patel, N.; Miotello, A. ^[2]

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1. Department of Physics, University of Mumbai, Vidyanagari, Santacruz (E), Mumbai 400 098 (India)
2. Dipartimento di Fisica, Universita degli Studi di Trento, I-38123 Povo ( Trento) (Italy)

Vanadium and Nitrogen were codoped in TiO{sub 2} photocatalyst by Sol-gel method to utilize visible light more efficiently for photocatalytic reactions. A noticeable shift of absorption edge to visible light region was obtained for the singly-doped namely V-TiO{sub 2}, N-TiO{sub 2} and codoped V-N-TiO{sub 2} samples in comparison with undoped TiO{sub 2}, with smallest band gap obtained with codoped-TiO{sub 2}. The photocatalytic activities for all TiO{sub 2} photocatalysts were tested by 4-chlorophenol (organic pollutant) degradation under visible light irradiation. It was found that codoped TiO{sub 2} exhibits the best photocatalytic activity, which could be attributed to the synergistic effect produced by V and N dopants.

• OSTI ID: 22113510
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1512; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
COMPARATIVE EVALUATIONS
DISSOCIATION
DOPED MATERIALS
ENERGY GAP
IRRADIATION
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
PHOTOCATALYSIS
PHOTOLYSIS
RADIATION EFFECTS
SEMICONDUCTOR MATERIALS
SOL-GEL PROCESS
TITANIUM OXIDES
ULTRAVIOLET SPECTRA
VANADIUM COMPOUNDS
VISIBLE RADIATION
VISIBLE SPECTRA