Nano-ferrites for water splitting: Unprecedented high photocatalytic hydrogen production under visible light

Priti A. Mangrulkar; Vivek Polshettiwar; Nitin K. Labhsetwar; Rajender S. Varma; Sadhana Suresh Rayalu

doi:10.1039/c2nr30819c

Nano-ferrites for water splitting: Unprecedented high photocatalytic hydrogen production under visible light

Priti A. Mangrulkar, Vivek Polshettiwar, Nitin K. Labhsetwar, Rajender S. Varma, Sadhana Suresh Rayalu

Biological, Environmental Sciences and Engineering

Research output: Contribution to journal › Article › peer-review

85 Scopus citations

Abstract

In the present investigation, hydrogen production via water splitting by nano-ferrites was studied using ethanol as the sacrificial donor and Pt as co-catalyst. Nano-ferrite is emerging as a promising photocatalyst with a hydrogen evolution rate of 8.275 μmol h -1 and a hydrogen yield of 8275 μmol h -1 g -1 under visible light compared to 0.0046 μmol h -1 for commercial iron oxide (tested under similar experimental conditions). Nano-ferrites were tested in three different photoreactor configurations. The rate of hydrogen evolution by nano-ferrite was significantly influenced by the photoreactor configuration. Altering the reactor configuration led to sevenfold (59.55 μmol h -1) increase in the hydrogen evolution rate. Nano-ferrites have shown remarkable stability in hydrogen production up to 30 h and the cumulative hydrogen evolution rate was observed to be 98.79 μmol h -1. The hydrogen yield was seen to be influenced by several factors like photocatalyst dose, illumination intensity, irradiation time, sacrificial donor and presence of co-catalyst. These were then investigated in detail. It was evident from the experimental data that nano-ferrites under optimized reaction conditions and photoreactor configuration could lead to remarkable hydrogen evolution activity under visible light. Temperature had a significant role in enhancing the hydrogen yield. © 2012 The Royal Society of Chemistry.

Original language	English (US)
Pages (from-to)	5202
Journal	Nanoscale
Volume	4
Issue number	16
DOIs	https://doi.org/10.1039/c2nr30819c
State	Published - 2012

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Financial support from the CSIR-Network projects NWP0022 and NWP-56 is greatly acknowledged. One of the authors, Priti A. Mangrulkar, would also take the opportunity to sincerely acknowledge the Council of Scientific and Industrial Research (CSIR) India for granting the Senior Research Fellowship. The authors would also like to thank Director, CSIR-NEERI for providing research facilities.

ASJC Scopus subject areas

General Materials Science

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1039/c2nr30819c

Cite this

@article{ed11157847594a61b80bc495b54cd98d,

title = "Nano-ferrites for water splitting: Unprecedented high photocatalytic hydrogen production under visible light",

abstract = "In the present investigation, hydrogen production via water splitting by nano-ferrites was studied using ethanol as the sacrificial donor and Pt as co-catalyst. Nano-ferrite is emerging as a promising photocatalyst with a hydrogen evolution rate of 8.275 μmol h -1 and a hydrogen yield of 8275 μmol h -1 g -1 under visible light compared to 0.0046 μmol h -1 for commercial iron oxide (tested under similar experimental conditions). Nano-ferrites were tested in three different photoreactor configurations. The rate of hydrogen evolution by nano-ferrite was significantly influenced by the photoreactor configuration. Altering the reactor configuration led to sevenfold (59.55 μmol h -1) increase in the hydrogen evolution rate. Nano-ferrites have shown remarkable stability in hydrogen production up to 30 h and the cumulative hydrogen evolution rate was observed to be 98.79 μmol h -1. The hydrogen yield was seen to be influenced by several factors like photocatalyst dose, illumination intensity, irradiation time, sacrificial donor and presence of co-catalyst. These were then investigated in detail. It was evident from the experimental data that nano-ferrites under optimized reaction conditions and photoreactor configuration could lead to remarkable hydrogen evolution activity under visible light. Temperature had a significant role in enhancing the hydrogen yield. {\textcopyright} 2012 The Royal Society of Chemistry.",

author = "Mangrulkar, {Priti A.} and Vivek Polshettiwar and Labhsetwar, {Nitin K.} and Varma, {Rajender S.} and Rayalu, {Sadhana Suresh}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: Financial support from the CSIR-Network projects NWP0022 and NWP-56 is greatly acknowledged. One of the authors, Priti A. Mangrulkar, would also take the opportunity to sincerely acknowledge the Council of Scientific and Industrial Research (CSIR) India for granting the Senior Research Fellowship. The authors would also like to thank Director, CSIR-NEERI for providing research facilities.",

year = "2012",

doi = "10.1039/c2nr30819c",

language = "English (US)",

volume = "4",

pages = "5202",

journal = "Nanoscale",

issn = "2040-3364",

publisher = "Royal Society of Chemistry",

number = "16",

}

TY - JOUR

T1 - Nano-ferrites for water splitting: Unprecedented high photocatalytic hydrogen production under visible light

AU - Mangrulkar, Priti A.

AU - Polshettiwar, Vivek

AU - Labhsetwar, Nitin K.

AU - Varma, Rajender S.

AU - Rayalu, Sadhana Suresh

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: Financial support from the CSIR-Network projects NWP0022 and NWP-56 is greatly acknowledged. One of the authors, Priti A. Mangrulkar, would also take the opportunity to sincerely acknowledge the Council of Scientific and Industrial Research (CSIR) India for granting the Senior Research Fellowship. The authors would also like to thank Director, CSIR-NEERI for providing research facilities.

PY - 2012

Y1 - 2012

N2 - In the present investigation, hydrogen production via water splitting by nano-ferrites was studied using ethanol as the sacrificial donor and Pt as co-catalyst. Nano-ferrite is emerging as a promising photocatalyst with a hydrogen evolution rate of 8.275 μmol h -1 and a hydrogen yield of 8275 μmol h -1 g -1 under visible light compared to 0.0046 μmol h -1 for commercial iron oxide (tested under similar experimental conditions). Nano-ferrites were tested in three different photoreactor configurations. The rate of hydrogen evolution by nano-ferrite was significantly influenced by the photoreactor configuration. Altering the reactor configuration led to sevenfold (59.55 μmol h -1) increase in the hydrogen evolution rate. Nano-ferrites have shown remarkable stability in hydrogen production up to 30 h and the cumulative hydrogen evolution rate was observed to be 98.79 μmol h -1. The hydrogen yield was seen to be influenced by several factors like photocatalyst dose, illumination intensity, irradiation time, sacrificial donor and presence of co-catalyst. These were then investigated in detail. It was evident from the experimental data that nano-ferrites under optimized reaction conditions and photoreactor configuration could lead to remarkable hydrogen evolution activity under visible light. Temperature had a significant role in enhancing the hydrogen yield. © 2012 The Royal Society of Chemistry.

AB - In the present investigation, hydrogen production via water splitting by nano-ferrites was studied using ethanol as the sacrificial donor and Pt as co-catalyst. Nano-ferrite is emerging as a promising photocatalyst with a hydrogen evolution rate of 8.275 μmol h -1 and a hydrogen yield of 8275 μmol h -1 g -1 under visible light compared to 0.0046 μmol h -1 for commercial iron oxide (tested under similar experimental conditions). Nano-ferrites were tested in three different photoreactor configurations. The rate of hydrogen evolution by nano-ferrite was significantly influenced by the photoreactor configuration. Altering the reactor configuration led to sevenfold (59.55 μmol h -1) increase in the hydrogen evolution rate. Nano-ferrites have shown remarkable stability in hydrogen production up to 30 h and the cumulative hydrogen evolution rate was observed to be 98.79 μmol h -1. The hydrogen yield was seen to be influenced by several factors like photocatalyst dose, illumination intensity, irradiation time, sacrificial donor and presence of co-catalyst. These were then investigated in detail. It was evident from the experimental data that nano-ferrites under optimized reaction conditions and photoreactor configuration could lead to remarkable hydrogen evolution activity under visible light. Temperature had a significant role in enhancing the hydrogen yield. © 2012 The Royal Society of Chemistry.

UR - http://hdl.handle.net/10754/562012

UR - http://xlink.rsc.org/?DOI=c2nr30819c

UR - http://www.scopus.com/inward/record.url?scp=84864487866&partnerID=8YFLogxK

U2 - 10.1039/c2nr30819c

DO - 10.1039/c2nr30819c

M3 - Article

C2 - 22751782

SN - 2040-3364

VL - 4

SP - 5202

JO - Nanoscale

JF - Nanoscale

IS - 16

ER -

Nano-ferrites for water splitting: Unprecedented high photocatalytic hydrogen production under visible light

Abstract

Bibliographical note

ASJC Scopus subject areas

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this