Title:	Investigation of nonlinear optical and photocatalytic properties of sol–gel derived KBiFe2O5
Authors:	Rai, Ranjan George, Agnes Philip, Reji +3 Co-Authors
Issue Date:	Jun-2019
Publisher:	Springer Verlag
Citation:	Journal of Materials Science : Materials in Electronics, 2019, Vol.30, p11451–11457
Abstract:	KBiFe2O5 polycrystalline powder was synthesized via citrate assisted sol–gel route. Its structural, microstructural, linear, nonlinear optical and photocatalytic properties were investigated. X-ray diffraction analysis revealed its structure to be monoclinic phase at room temperature. Nonlinear optical absorption of this material was investigated using open aperture z-scan technique. A three-photon type absorption mechanism fitted well with the experimental data, and the corresponding nonlinear absorption coefficient was calculated to be 4 × 10−23 m3/W2. The band gap of this material as determined by diffuse reflectance spectroscopy was found to be 1.75 eV. This makes it suitable for visible light driven photocatalytic applications. The photocatalytic property of KBiFe2O5 was investigated by degradation of methylene blue under visible light irradiation at different pH. The degradation rate constant was found to be 0.031 min−1 at a pH of 11.
Description:	Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)
URI:	http://hdl.handle.net/2289/7246
ISSN:	0957-4522 1573-482X (online)
Alternative Location:	https://doi.org/10.1007/s10854-019-01494-8
Copyright:	2019 Springer Verlag
Appears in Collections:	Research Papers (LAMP)

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