Wide band gap p-type nanocrystalline CuBO{sub 2} as a novel UV photocatalyst
- Thin Film and Nanoscience Laboratory, Department of Physics, Jadavpur University, Kolkata 700 032 (India)
Graphical abstract: - Highlights: • CuBO{sub 2} nanocrystals were synthesized by sol–gel route. • The products have been characterized to confirm the formation of CuBO{sub 2}. • Photocatalytic activity of this material is reported for the first time. - Abstract: Wide band gap copper based delafossite CuBO{sub 2} nanocrystalline powders of different particle sizes were synthesized via sol–gel route. Structural characterization was performed using X-ray diffraction (XRD) and transmission electron microscopy (TEM) which confirmed good crystallinity and proper phase formation of the samples. Compositional analysis was carried out by energy dispersive X-ray studies (EDX), whereas field emission scanning electron microscopy revealed morphological information of the samples. The photocatalytic performance of this delafossite material was studied for the first time with a standard photocatalytic set-up and the photocatalytic efficiency was found to increase with decreasing particle size. The Langmuir–Hinshelwood photocatalytic rate constants increased considerably for the samples synthesized at different pH from 2.75 to 0.5; which eventually varied particle size. The efficient photocatalytic performance, found for the first time here, will make this novel p-type wide band gap semiconductor a truly multifunctional material.
- OSTI ID:
- 22290479
- Journal Information:
- Materials Research Bulletin, Vol. 48, Issue 7; Other Information: Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synthesis and spectroscopic characterization of nanostructured anatase titania: A photocatalyst
Photocatalytic hydrogen production using visible-light-responsive Ta{sub 3}N{sub 5} photocatalyst supported on monodisperse spherical SiO{sub 2} particulates