One-step bacterial assisted synthesis of CdS/rGO nanocomposite as Hydrogen production catalyst

K. Hareesh, Sanjay D. Dhole, Deodatta M. Phase, Jim F. Williams

Research output: Contribution to journalArticle

Abstract

One-step E-Coli bacterial assisted method was employed to synthesize Cadmium Sulfide/reduced graphene oxide (CdS/rGO) nanocomposite and its photocatalytic Hydrogen production activity was studied under visible light irradiation. The loading of rGO in nanocomposite was varied to study its effect on photocatalytic Hydrogen production. Among all, CdS/rGO (2 wt%) showed highest photocatalytic activity i.e. it produced 500 mu molg(-1) of Hydrogen. The enhanced photocatalytic activity of CdS/rGO (2 wt%) was due to decrease in its work function to 3.98 eV and good efficiency in the separation of photogenerated charge colliers, which in turn indicate the increased lifetime of charge carriers. Furthermore, the CdS/rGO (2 wt%) nanocomposite showed excellent photocatalytic stability for Hydrogen production due to the presence of rGO, which protects the CdS nanoparticles from photo-corrosion. It is anticipated that this work could enhance the information on photo catalytic mechanism of CdS/rGO nanocomposite towards Hydrogen production under visible light irradiation.

Original languageEnglish
Pages (from-to)82-89
Number of pages8
JournalMaterials Research Bulletin
Volume110
DOIs
Publication statusPublished - Feb 2019

Cite this

@article{44d231da654a4a969ce677a9195f495c,
title = "One-step bacterial assisted synthesis of CdS/rGO nanocomposite as Hydrogen production catalyst",
abstract = "One-step E-Coli bacterial assisted method was employed to synthesize Cadmium Sulfide/reduced graphene oxide (CdS/rGO) nanocomposite and its photocatalytic Hydrogen production activity was studied under visible light irradiation. The loading of rGO in nanocomposite was varied to study its effect on photocatalytic Hydrogen production. Among all, CdS/rGO (2 wt{\%}) showed highest photocatalytic activity i.e. it produced 500 mu molg(-1) of Hydrogen. The enhanced photocatalytic activity of CdS/rGO (2 wt{\%}) was due to decrease in its work function to 3.98 eV and good efficiency in the separation of photogenerated charge colliers, which in turn indicate the increased lifetime of charge carriers. Furthermore, the CdS/rGO (2 wt{\%}) nanocomposite showed excellent photocatalytic stability for Hydrogen production due to the presence of rGO, which protects the CdS nanoparticles from photo-corrosion. It is anticipated that this work could enhance the information on photo catalytic mechanism of CdS/rGO nanocomposite towards Hydrogen production under visible light irradiation.",
keywords = "CdS/rGO nanocomposite, E-Coli bacteria, Photocatalytic activity, Hydrogen production, Work function, VISIBLE-LIGHT-DRIVEN, GRAPHENE OXIDE NANOCOMPOSITES, CADMIUM-SULFIDE, PHOTOCATALYTIC DEGRADATION, ESCHERICHIA-COLI, QUANTUM DOTS, WATER, GENERATION, REDUCTION, TIO2",
author = "K. Hareesh and Dhole, {Sanjay D.} and Phase, {Deodatta M.} and Williams, {Jim F.}",
year = "2019",
month = "2",
doi = "10.1016/j.materresbull.2018.10.012",
language = "English",
volume = "110",
pages = "82--89",
journal = "Materials Research Bulletin",
issn = "0025-5408",
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One-step bacterial assisted synthesis of CdS/rGO nanocomposite as Hydrogen production catalyst. / Hareesh, K.; Dhole, Sanjay D.; Phase, Deodatta M.; Williams, Jim F.

In: Materials Research Bulletin, Vol. 110, 02.2019, p. 82-89.

Research output: Contribution to journalArticle

TY - JOUR

T1 - One-step bacterial assisted synthesis of CdS/rGO nanocomposite as Hydrogen production catalyst

AU - Hareesh, K.

AU - Dhole, Sanjay D.

AU - Phase, Deodatta M.

AU - Williams, Jim F.

PY - 2019/2

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N2 - One-step E-Coli bacterial assisted method was employed to synthesize Cadmium Sulfide/reduced graphene oxide (CdS/rGO) nanocomposite and its photocatalytic Hydrogen production activity was studied under visible light irradiation. The loading of rGO in nanocomposite was varied to study its effect on photocatalytic Hydrogen production. Among all, CdS/rGO (2 wt%) showed highest photocatalytic activity i.e. it produced 500 mu molg(-1) of Hydrogen. The enhanced photocatalytic activity of CdS/rGO (2 wt%) was due to decrease in its work function to 3.98 eV and good efficiency in the separation of photogenerated charge colliers, which in turn indicate the increased lifetime of charge carriers. Furthermore, the CdS/rGO (2 wt%) nanocomposite showed excellent photocatalytic stability for Hydrogen production due to the presence of rGO, which protects the CdS nanoparticles from photo-corrosion. It is anticipated that this work could enhance the information on photo catalytic mechanism of CdS/rGO nanocomposite towards Hydrogen production under visible light irradiation.

AB - One-step E-Coli bacterial assisted method was employed to synthesize Cadmium Sulfide/reduced graphene oxide (CdS/rGO) nanocomposite and its photocatalytic Hydrogen production activity was studied under visible light irradiation. The loading of rGO in nanocomposite was varied to study its effect on photocatalytic Hydrogen production. Among all, CdS/rGO (2 wt%) showed highest photocatalytic activity i.e. it produced 500 mu molg(-1) of Hydrogen. The enhanced photocatalytic activity of CdS/rGO (2 wt%) was due to decrease in its work function to 3.98 eV and good efficiency in the separation of photogenerated charge colliers, which in turn indicate the increased lifetime of charge carriers. Furthermore, the CdS/rGO (2 wt%) nanocomposite showed excellent photocatalytic stability for Hydrogen production due to the presence of rGO, which protects the CdS nanoparticles from photo-corrosion. It is anticipated that this work could enhance the information on photo catalytic mechanism of CdS/rGO nanocomposite towards Hydrogen production under visible light irradiation.

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KW - Hydrogen production

KW - Work function

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KW - GRAPHENE OXIDE NANOCOMPOSITES

KW - CADMIUM-SULFIDE

KW - PHOTOCATALYTIC DEGRADATION

KW - ESCHERICHIA-COLI

KW - QUANTUM DOTS

KW - WATER

KW - GENERATION

KW - REDUCTION

KW - TIO2

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M3 - Article

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EP - 89

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JF - Materials Research Bulletin

SN - 0025-5408

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