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Title: g-C{sub 3}N{sub 4}/NaTaO{sub 3} organic–inorganic hybrid nanocomposite: High-performance and recyclable visible light driven photocatalyst

Abstract

Graphical abstract: High-performance and recyclable visible-light driven g-C{sub 3}N{sub 4}/NaTaO{sub 3} hybrid nanocomposite photocatalysts have been prepared by a facile ultrasonic dispersion method. The hybrid nanocomposite photocatalyst can be promising photocatalytic material for practical application in water splitting and environmental remediation. - Highlights: • Novel g-C{sub 3}N{sub 4}/NaTaO{sub 3} nanocomposites as a high performance and recyclable photocatalysts. • These catalysts exhibited significantly enhanced photocatalytic activity under UV–visible light irradiation. • More attractively, dramatic activity is generated under visible light irradiation due to the g-C{sub 3}N{sub 4} loaded. • Interestingly, the as-prepared hybrid nanocomposites possess high reusability. - Abstract: Novel g-C{sub 3}N{sub 4}/NaTaO{sub 3} hybrid nanocomposites have been prepared by a facile ultrasonic dispersion method. Our results clearly show the formation of interface between NaTaO{sub 3} and g-C{sub 3}N{sub 4} and further loading of g-C{sub 3}N{sub 4} did not affect the crystal structure and morphology of NaTaO{sub 3}. The g-C{sub 3}N{sub 4}/NaTaO{sub 3} nanocomposites exhibited enhanced photocatalytic performance for the degradation of Rhodamine B under UV–visible and visible light irradiation compared to pure NaTaO{sub 3} and Degussa P25. Interestingly, the visible light photocatalytic activity is generated due to the loading of g-C{sub 3}N{sub 4}. A mechanism is proposed to discuss themore » enhanced photocatalytic activity based on trapping experiments of photoinduced radicals and holes. Under visible light irradiation, electron excited from the valance band (VB) to conduction band (CB) of g-C{sub 3}N{sub 4} could directly inject into the CB of NaTaO{sub 3}, making g-C{sub 3}N{sub 4}/NaTaO{sub 3} visible light driven photocatalyst. Since the as-prepared hybrid nanocomposites possess high reusability therefore it can be promising photocatalyst for environmental applications.« less

Authors:
 [1];  [2];  [1];  [1]
  1. Department of Chemistry, National Institute of Technology Warangal, 506004 A.P. (India)
  2. Department of Chemistry, Indian Institute of Technology Delhi, New Delhi 110016 (India)
Publication Date:
OSTI Identifier:
22341840
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 49; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; CARBON NITRIDES; CATALYSTS; CRYSTAL STRUCTURE; DISPERSIONS; IRRADIATION; NANOCOMPOSITES; NANOSTRUCTURES; PHOTOCATALYSIS; SYNTHESIS; WATER

Citation Formats

Kumar, Santosh, Kumar, Bharat, Surendar, T., and Shanker, Vishnu. g-C{sub 3}N{sub 4}/NaTaO{sub 3} organic–inorganic hybrid nanocomposite: High-performance and recyclable visible light driven photocatalyst. United States: N. p., 2014. Web. doi:10.1016/J.MATERRESBULL.2013.09.013.
Kumar, Santosh, Kumar, Bharat, Surendar, T., & Shanker, Vishnu. g-C{sub 3}N{sub 4}/NaTaO{sub 3} organic–inorganic hybrid nanocomposite: High-performance and recyclable visible light driven photocatalyst. United States. doi:10.1016/J.MATERRESBULL.2013.09.013.
Kumar, Santosh, Kumar, Bharat, Surendar, T., and Shanker, Vishnu. Wed . "g-C{sub 3}N{sub 4}/NaTaO{sub 3} organic–inorganic hybrid nanocomposite: High-performance and recyclable visible light driven photocatalyst". United States. doi:10.1016/J.MATERRESBULL.2013.09.013.
@article{osti_22341840,
title = {g-C{sub 3}N{sub 4}/NaTaO{sub 3} organic–inorganic hybrid nanocomposite: High-performance and recyclable visible light driven photocatalyst},
author = {Kumar, Santosh and Kumar, Bharat and Surendar, T. and Shanker, Vishnu},
abstractNote = {Graphical abstract: High-performance and recyclable visible-light driven g-C{sub 3}N{sub 4}/NaTaO{sub 3} hybrid nanocomposite photocatalysts have been prepared by a facile ultrasonic dispersion method. The hybrid nanocomposite photocatalyst can be promising photocatalytic material for practical application in water splitting and environmental remediation. - Highlights: • Novel g-C{sub 3}N{sub 4}/NaTaO{sub 3} nanocomposites as a high performance and recyclable photocatalysts. • These catalysts exhibited significantly enhanced photocatalytic activity under UV–visible light irradiation. • More attractively, dramatic activity is generated under visible light irradiation due to the g-C{sub 3}N{sub 4} loaded. • Interestingly, the as-prepared hybrid nanocomposites possess high reusability. - Abstract: Novel g-C{sub 3}N{sub 4}/NaTaO{sub 3} hybrid nanocomposites have been prepared by a facile ultrasonic dispersion method. Our results clearly show the formation of interface between NaTaO{sub 3} and g-C{sub 3}N{sub 4} and further loading of g-C{sub 3}N{sub 4} did not affect the crystal structure and morphology of NaTaO{sub 3}. The g-C{sub 3}N{sub 4}/NaTaO{sub 3} nanocomposites exhibited enhanced photocatalytic performance for the degradation of Rhodamine B under UV–visible and visible light irradiation compared to pure NaTaO{sub 3} and Degussa P25. Interestingly, the visible light photocatalytic activity is generated due to the loading of g-C{sub 3}N{sub 4}. A mechanism is proposed to discuss the enhanced photocatalytic activity based on trapping experiments of photoinduced radicals and holes. Under visible light irradiation, electron excited from the valance band (VB) to conduction band (CB) of g-C{sub 3}N{sub 4} could directly inject into the CB of NaTaO{sub 3}, making g-C{sub 3}N{sub 4}/NaTaO{sub 3} visible light driven photocatalyst. Since the as-prepared hybrid nanocomposites possess high reusability therefore it can be promising photocatalyst for environmental applications.},
doi = {10.1016/J.MATERRESBULL.2013.09.013},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 49,
place = {United States},
year = {2014},
month = {1}
}