Nanoarchitectonics earth-abundant chalcogenide Cu2SnS3 thin film using ultrasonic spray pyrolysis for visible light-driven photocatalysis

Rahaman, S and Singha, MK (2022) Nanoarchitectonics earth-abundant chalcogenide Cu2SnS3 thin film using ultrasonic spray pyrolysis for visible light-driven photocatalysis. In: Applied Physics A: Materials Science and Processing, 128 (1).

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Abstract

Photocatalysis is the process which used to remove the dye from the effluent. Here, we have used earth-abundant chalcogenide Cu2SnS3 (CTS) thin film as a photocatalyst to remove the dye (methylene blue) under visible light irradiation. A low cost ultrasonic spray pyrolysis was used to deposit the film on soda-lime glass substrate in a single step at optimized temperature 500 °C. The structural, morphological and optical properties of the CTS film have been studied using XRD, SEM and UV�Vis spectroscopy. Structural analysis confirms the formation of Cu2SnS3 tetragonal structure without any secondary impurities. SEM image indicates the surface of this film is smooth and uniform. Bandgap of film is found to be 1.35 eV. Photocatalysis activity of CTS thin film is studied by degrading methylene blue (MB) dye (1 � 10�5 M) in water solution under visible light irradiation. It degrades 90 MB in 3 h. To evaluate the industrial effluent, we have studied the photocatalytic activity in different pH (4, 7, 9) medium. It shows that the MB degradation is faster in the base medium compare to acidic or neutral medium. It takes 1 h to degrade 90 dye in base medium. Films are showing good repeatable performance of the photocatalytic activity. Graphical abstract: Figure not available: see fulltext.. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH, DE part of Springer Nature.

Item Type:	Journal Article
Publication:	Applied Physics A: Materials Science and Processing
Publisher:	Springer Science and Business Media Deutschland GmbH
Additional Information:	The copyright for this article belongs to Springer Science and Business Media Deutschland GmbH.
Keywords:	Aromatic compounds; Effluents; Irradiation; Light; Lime; Optical properties; Photocatalytic activity; Photodegradation; Sewage; Substrates; Thin films; Tin compounds, Cu2SnS3 (CTS) thin film; Different ph medium; Dye methylene blue; Photocatalytic activities; Repeatability; Thin-films; Ultrasonic spray pyrolysis; Visible-light irradiation; Visible-light photocatalysts; Visible-light-driven, Copper compounds
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	07 Jan 2022 06:07
Last Modified:	07 Jan 2022 06:07
URI:	http://eprints.iisc.ac.in/id/eprint/70803

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