RGO/WO3 hierarchical architectures for improved H2S sensing and highly efficient solar-driving photo-degradation of RhB dye

Abstract Surface area and surface active sites are two important key parameters in enhancing the gas sensing as well as photocatalytic properties of the parent material. With this motivation, herein, we report a facile synthesis of Reduced Graphene Oxide/Tungsten Oxide RGO/WO3 hierarchical nanostruc...

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Autores principales:	Swati S. Mehta, Digambar Y. Nadargi, Mohaseen S. Tamboli, Thamraa Alshahrani, Vasudeva Reddy Minnam Reddy, Eui Seon Kim, Imtiaz S. Mulla, Chinho Park, Sharad S. Suryavanshi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/aa99b7baf65f4c4d923213cebb056095
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spelling	oai:doaj.org-article:aa99b7baf65f4c4d923213cebb0560952021-12-02T15:53:59ZRGO/WO3 hierarchical architectures for improved H2S sensing and highly efficient solar-driving photo-degradation of RhB dye10.1038/s41598-021-84416-12045-2322https://doaj.org/article/aa99b7baf65f4c4d923213cebb0560952021-03-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-84416-1https://doaj.org/toc/2045-2322Abstract Surface area and surface active sites are two important key parameters in enhancing the gas sensing as well as photocatalytic properties of the parent material. With this motivation, herein, we report a facile synthesis of Reduced Graphene Oxide/Tungsten Oxide RGO/WO3 hierarchical nanostructures via simple hydrothermal route, and their validation in accomplishment of improved H2S sensing and highly efficient solar driven photo-degradation of RhB Dye. The self-made RGO using modified Hummer’s method, is utilized to develop the RGO/WO3 nanocomposites with 0.15, 0.3 and 0.5 wt% of RGO in WO3 matrix. As-developed nanocomposites were analyzed using various physicochemical techniques such as XRD, FE-SEM, TEM/HRTEM, and EDAX. The creation of hierarchic marigold frameworks culminated in a well affiliated mesoporous system, offering efficient gas delivery networks, leading to a significant increase in sensing response to H2S. The optimized sensor (RGO/WO3 with 0.3 wt% loading) exhibited selective response towards H2S, which is ~ 13 times higher (Ra/Rg = 22.9) than pristine WO3 (Ra/Rg = 1.78) sensor. Looking at bi-directional application, graphene platform boosted the photocatalytic activity (94% degradation of Rhodamine B dye in 210 min) under natural sunlight. The RGO’s role in increasing the active surface and surface area is clarified by the H2S gas response analysis and solar-driven photo-degradation of RhB dye solution. The outcome of this study provides the new insights to RGO/WO3 based nanocomposites’ research spreadsheet, in view of multidisciplinary applications.Swati S. MehtaDigambar Y. NadargiMohaseen S. TamboliThamraa AlshahraniVasudeva Reddy Minnam ReddyEui Seon KimImtiaz S. MullaChinho ParkSharad S. SuryavanshiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-17 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Swati S. Mehta Digambar Y. Nadargi Mohaseen S. Tamboli Thamraa Alshahrani Vasudeva Reddy Minnam Reddy Eui Seon Kim Imtiaz S. Mulla Chinho Park Sharad S. Suryavanshi RGO/WO3 hierarchical architectures for improved H2S sensing and highly efficient solar-driving photo-degradation of RhB dye
description	Abstract Surface area and surface active sites are two important key parameters in enhancing the gas sensing as well as photocatalytic properties of the parent material. With this motivation, herein, we report a facile synthesis of Reduced Graphene Oxide/Tungsten Oxide RGO/WO3 hierarchical nanostructures via simple hydrothermal route, and their validation in accomplishment of improved H2S sensing and highly efficient solar driven photo-degradation of RhB Dye. The self-made RGO using modified Hummer’s method, is utilized to develop the RGO/WO3 nanocomposites with 0.15, 0.3 and 0.5 wt% of RGO in WO3 matrix. As-developed nanocomposites were analyzed using various physicochemical techniques such as XRD, FE-SEM, TEM/HRTEM, and EDAX. The creation of hierarchic marigold frameworks culminated in a well affiliated mesoporous system, offering efficient gas delivery networks, leading to a significant increase in sensing response to H2S. The optimized sensor (RGO/WO3 with 0.3 wt% loading) exhibited selective response towards H2S, which is ~ 13 times higher (Ra/Rg = 22.9) than pristine WO3 (Ra/Rg = 1.78) sensor. Looking at bi-directional application, graphene platform boosted the photocatalytic activity (94% degradation of Rhodamine B dye in 210 min) under natural sunlight. The RGO’s role in increasing the active surface and surface area is clarified by the H2S gas response analysis and solar-driven photo-degradation of RhB dye solution. The outcome of this study provides the new insights to RGO/WO3 based nanocomposites’ research spreadsheet, in view of multidisciplinary applications.
format	article
author	Swati S. Mehta Digambar Y. Nadargi Mohaseen S. Tamboli Thamraa Alshahrani Vasudeva Reddy Minnam Reddy Eui Seon Kim Imtiaz S. Mulla Chinho Park Sharad S. Suryavanshi
author_facet	Swati S. Mehta Digambar Y. Nadargi Mohaseen S. Tamboli Thamraa Alshahrani Vasudeva Reddy Minnam Reddy Eui Seon Kim Imtiaz S. Mulla Chinho Park Sharad S. Suryavanshi
author_sort	Swati S. Mehta
title	RGO/WO3 hierarchical architectures for improved H2S sensing and highly efficient solar-driving photo-degradation of RhB dye
title_short	RGO/WO3 hierarchical architectures for improved H2S sensing and highly efficient solar-driving photo-degradation of RhB dye
title_full	RGO/WO3 hierarchical architectures for improved H2S sensing and highly efficient solar-driving photo-degradation of RhB dye
title_fullStr	RGO/WO3 hierarchical architectures for improved H2S sensing and highly efficient solar-driving photo-degradation of RhB dye
title_full_unstemmed	RGO/WO3 hierarchical architectures for improved H2S sensing and highly efficient solar-driving photo-degradation of RhB dye
title_sort	rgo/wo3 hierarchical architectures for improved h2s sensing and highly efficient solar-driving photo-degradation of rhb dye
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/aa99b7baf65f4c4d923213cebb056095
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RGO/WO3 hierarchical architectures for improved H2S sensing and highly efficient solar-driving photo-degradation of RhB dye

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