Efficacious visible-light photocatalytic degradation of toxics by using Sr2TiMnO6-rGO composite for the wastewater treatment

Sr2TiMnO6 (STMO) double perovskite was synthesized by a solid-state technique, and STMO-rGO (reduced graphene oxide) composite was prepared by a hydrothermal method. BET, XRD, XPS, TEM, SEM, and FT-IR techniques were used to investigate the properties and structures of the composite material. The ch...

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Main Authors: Aditi Sharma, Upasana Bhardwaj, H.S. Kushwaha
Format: Article
Language:English
Published: Elsevier 2021-06-01
Series:Cleaner Engineering and Technology
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666790821000471
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author Aditi Sharma
Upasana Bhardwaj
H.S. Kushwaha
author_facet Aditi Sharma
Upasana Bhardwaj
H.S. Kushwaha
author_sort Aditi Sharma
collection DOAJ
description Sr2TiMnO6 (STMO) double perovskite was synthesized by a solid-state technique, and STMO-rGO (reduced graphene oxide) composite was prepared by a hydrothermal method. BET, XRD, XPS, TEM, SEM, and FT-IR techniques were used to investigate the properties and structures of the composite material. The characterization results depict that this material is an extremely efficient catalyst, which shows an excellent photocatalytic activity. The material has a direct bandgap of 1.30 ​eV, which makes it suitable for the photocatalytic wastewater treatment. The photocatalytic efficiency of STMO-rGO powder was tested in Rhodamine B dye. The complete degradation of dye has occurred only in 5 ​min. The first-order kinetic reaction was observed in Visible light, whereas the second-order kinetic response observed in UV light.
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spelling doaj.art-70ada448951640268d55655611201eb72022-12-21T21:32:03ZengElsevierCleaner Engineering and Technology2666-79082021-06-012100087Efficacious visible-light photocatalytic degradation of toxics by using Sr2TiMnO6-rGO composite for the wastewater treatmentAditi Sharma0Upasana Bhardwaj1H.S. Kushwaha2Materials Research Centre, Malaviya National Institute of Technology (MNIT) Jaipur, IndiaMaterials Research Centre, Malaviya National Institute of Technology (MNIT) Jaipur, IndiaCorresponding author.; Materials Research Centre, Malaviya National Institute of Technology (MNIT) Jaipur, IndiaSr2TiMnO6 (STMO) double perovskite was synthesized by a solid-state technique, and STMO-rGO (reduced graphene oxide) composite was prepared by a hydrothermal method. BET, XRD, XPS, TEM, SEM, and FT-IR techniques were used to investigate the properties and structures of the composite material. The characterization results depict that this material is an extremely efficient catalyst, which shows an excellent photocatalytic activity. The material has a direct bandgap of 1.30 ​eV, which makes it suitable for the photocatalytic wastewater treatment. The photocatalytic efficiency of STMO-rGO powder was tested in Rhodamine B dye. The complete degradation of dye has occurred only in 5 ​min. The first-order kinetic reaction was observed in Visible light, whereas the second-order kinetic response observed in UV light.http://www.sciencedirect.com/science/article/pii/S2666790821000471Sr2TiMnO6Double perovskiteGraphene oxidePhotodegradationPhotocatalytic activity
spellingShingle Aditi Sharma
Upasana Bhardwaj
H.S. Kushwaha
Efficacious visible-light photocatalytic degradation of toxics by using Sr2TiMnO6-rGO composite for the wastewater treatment
Cleaner Engineering and Technology
Sr2TiMnO6
Double perovskite
Graphene oxide
Photodegradation
Photocatalytic activity
title Efficacious visible-light photocatalytic degradation of toxics by using Sr2TiMnO6-rGO composite for the wastewater treatment
title_full Efficacious visible-light photocatalytic degradation of toxics by using Sr2TiMnO6-rGO composite for the wastewater treatment
title_fullStr Efficacious visible-light photocatalytic degradation of toxics by using Sr2TiMnO6-rGO composite for the wastewater treatment
title_full_unstemmed Efficacious visible-light photocatalytic degradation of toxics by using Sr2TiMnO6-rGO composite for the wastewater treatment
title_short Efficacious visible-light photocatalytic degradation of toxics by using Sr2TiMnO6-rGO composite for the wastewater treatment
title_sort efficacious visible light photocatalytic degradation of toxics by using sr2timno6 rgo composite for the wastewater treatment
topic Sr2TiMnO6
Double perovskite
Graphene oxide
Photodegradation
Photocatalytic activity
url http://www.sciencedirect.com/science/article/pii/S2666790821000471
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AT hskushwaha efficaciousvisiblelightphotocatalyticdegradationoftoxicsbyusingsr2timno6rgocompositeforthewastewatertreatment