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Title: One pot synthesis of nanosized anion doped TiO{sub 2}: Effect of irradiation of sound waves on surface morphology and optical properties

Commercialization of AOP’s for remediation of pollutants from environmental matrix required the process to be operated by solar light. Semiconductor TiO{sub 2} has emerged as an effective and preferred photocatalyst in the field of environmental photocatalysis due to its; (i) biological and chemical inertness (ii) resistance to chemical and photo corrosion, (iii) can absorb natural UV light due to appropriate energetic separation between its valence and conduction band. However, unfortunately the optical band gap of TiO{sub 2} (3.0-3.23 eV) with absorption cut off ∼ 380 nm, enables it to harness only a small fraction (∼ 5%) of the entire solar spectrum. One of the current areas of research is modification of TiO{sub 2} photocatalyst. In present paper one pot greener synthesis from titanium isopropoxide and hydroxylamine hydrochloride has been used as titanium and nitrogen precursor under ultrasonic waves. The as synthesized TiO{sub 2} nanomaterials were dried at 100°C and further calcinated at different temperatures. The effect of reaction parameters such as ultrasonication time on the yield, surface morphology, spectroscopic data and optical properties was also investigated. The results confirm that the anatase phase is a main phase with a crystallite size of 35-77 nm and the calculated band gap ofmore » nanomaterials varies from 2.10-3.1 eV.« less
Authors:
;  [1]
  1. Department of Chemistry, Sant Longowal Institute of Engineering and Technology, (Deemed University), Longowal 148106, Sangrur, Punjab (India)
Publication Date:
OSTI Identifier:
22488871
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1675; Journal Issue: 1; Conference: AMRP-2015: 4. national conference on advanced materials and radiation physics, Longowal (India), 13-14 Mar 2015; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ABSORPTION; CORROSION; DOPED MATERIALS; HYDROXYLAMINE; IRRADIATION; NANOMATERIALS; NANOSTRUCTURES; NITROGEN; OPTICAL PROPERTIES; PHOTOCATALYSIS; POLLUTANTS; REMEDIAL ACTION; SEMICONDUCTOR MATERIALS; SURFACES; SYNTHESIS; TITANIUM; TITANIUM OXIDES; ULTRASONIC WAVES; ULTRAVIOLET RADIATION; VISIBLE RADIATION