Photocatalytic properties of Mn-doped NiO spherical nanoparticles synthesized from sol-gel method

S. Sankar; Sanjeev K. Sharma; Namhyun An; Hwauk Lee; Deuk Young Kim; Young Bin Im; Yung Duk Cho; R. Sankar Ganesh; S. Ponnusamy; P. Raji; L. P. Purohit

doi:10.1016/j.ijleo.2016.08.126

Photocatalytic properties of Mn-doped NiO spherical nanoparticles synthesized from sol-gel method

S. Sankar
, Sanjeev K. Sharma
, Namhyun An
, Hwauk Lee
, Deuk Young Kim
, Young Bin Im
, Yung Duk Cho
, R. Sankar Ganesh
, S. Ponnusamy
, P. Raji
, L. P. Purohit

College of Advanced Convergence Engineering

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

127 Scopus citations

Abstract

Mn-doped NiO (NiO:Mn) nanopowders were synthesized from an inexpensive sol-gel method. The XRD peak profile analysis of NiO:Mn nanopowders confirmed the cubic structure. The spherical nanoparticles of NiO:Mn were evaluated from the SEM and TEM analysis and the grain size decreased as the Mn concentration increased. The average crystallite size decreased from 35.44 nm to 30.5 nm and the bandgap increased from 3.79 eV to 3.95 eV as the Mn concentration increased from 0 wt.% to 4 wt.%. The photocatalytic properties of NiO:Mn nanopowders were measured for the lowest and highest Mn dopant concentrations (Mn: 0 & 4 wt.%) by using the methylene blue dye under UV illumination. The NiO:Mn (Mn: 4 wt.%) nanoparticles showed the highest photocatalytic activity due to the highest activation sites. Therefore, it is revealed that the Mn: 4 wt.% nanoparticles are observed to be more suitable for the photocatalytic activity of methylene blue dye degradation.

Original language	English
Pages (from-to)	10727-10734
Number of pages	8
Journal	Optik
Volume	127
Issue number	22
DOIs	https://doi.org/10.1016/j.ijleo.2016.08.126
State	Published - 1 Nov 2016

Keywords

Catalytic properties
Methylene blue dye degradation
Mn-doped NiO nanoparticles
Optical properties
Sol-gel method

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10.1016/j.ijleo.2016.08.126

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@article{424174cddd1d42b4a6342b210a608348,

title = "Photocatalytic properties of Mn-doped NiO spherical nanoparticles synthesized from sol-gel method",

abstract = "Mn-doped NiO (NiO:Mn) nanopowders were synthesized from an inexpensive sol-gel method. The XRD peak profile analysis of NiO:Mn nanopowders confirmed the cubic structure. The spherical nanoparticles of NiO:Mn were evaluated from the SEM and TEM analysis and the grain size decreased as the Mn concentration increased. The average crystallite size decreased from 35.44 nm to 30.5 nm and the bandgap increased from 3.79 eV to 3.95 eV as the Mn concentration increased from 0 wt.\% to 4 wt.\%. The photocatalytic properties of NiO:Mn nanopowders were measured for the lowest and highest Mn dopant concentrations (Mn: 0 \& 4 wt.\%) by using the methylene blue dye under UV illumination. The NiO:Mn (Mn: 4 wt.\%) nanoparticles showed the highest photocatalytic activity due to the highest activation sites. Therefore, it is revealed that the Mn: 4 wt.\% nanoparticles are observed to be more suitable for the photocatalytic activity of methylene blue dye degradation.",

keywords = "Catalytic properties, Methylene blue dye degradation, Mn-doped NiO nanoparticles, Optical properties, Sol-gel method",

author = "S. Sankar and Sharma, \{Sanjeev K.\} and Namhyun An and Hwauk Lee and Kim, \{Deuk Young\} and Im, \{Young Bin\} and Cho, \{Yung Duk\} and Ganesh, \{R. Sankar\} and S. Ponnusamy and P. Raji and Purohit, \{L. P.\}",

note = "Publisher Copyright: {\textcopyright} 2016",

year = "2016",

month = nov,

day = "1",

doi = "10.1016/j.ijleo.2016.08.126",

language = "English",

volume = "127",

pages = "10727--10734",

journal = "Optik",

issn = "0030-4026",

publisher = "Elsevier GmbH",

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TY - JOUR

T1 - Photocatalytic properties of Mn-doped NiO spherical nanoparticles synthesized from sol-gel method

AU - Sankar, S.

AU - Sharma, Sanjeev K.

AU - An, Namhyun

AU - Lee, Hwauk

AU - Kim, Deuk Young

AU - Im, Young Bin

AU - Cho, Yung Duk

AU - Ganesh, R. Sankar

AU - Ponnusamy, S.

AU - Raji, P.

AU - Purohit, L. P.

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Mn-doped NiO (NiO:Mn) nanopowders were synthesized from an inexpensive sol-gel method. The XRD peak profile analysis of NiO:Mn nanopowders confirmed the cubic structure. The spherical nanoparticles of NiO:Mn were evaluated from the SEM and TEM analysis and the grain size decreased as the Mn concentration increased. The average crystallite size decreased from 35.44 nm to 30.5 nm and the bandgap increased from 3.79 eV to 3.95 eV as the Mn concentration increased from 0 wt.% to 4 wt.%. The photocatalytic properties of NiO:Mn nanopowders were measured for the lowest and highest Mn dopant concentrations (Mn: 0 & 4 wt.%) by using the methylene blue dye under UV illumination. The NiO:Mn (Mn: 4 wt.%) nanoparticles showed the highest photocatalytic activity due to the highest activation sites. Therefore, it is revealed that the Mn: 4 wt.% nanoparticles are observed to be more suitable for the photocatalytic activity of methylene blue dye degradation.

AB - Mn-doped NiO (NiO:Mn) nanopowders were synthesized from an inexpensive sol-gel method. The XRD peak profile analysis of NiO:Mn nanopowders confirmed the cubic structure. The spherical nanoparticles of NiO:Mn were evaluated from the SEM and TEM analysis and the grain size decreased as the Mn concentration increased. The average crystallite size decreased from 35.44 nm to 30.5 nm and the bandgap increased from 3.79 eV to 3.95 eV as the Mn concentration increased from 0 wt.% to 4 wt.%. The photocatalytic properties of NiO:Mn nanopowders were measured for the lowest and highest Mn dopant concentrations (Mn: 0 & 4 wt.%) by using the methylene blue dye under UV illumination. The NiO:Mn (Mn: 4 wt.%) nanoparticles showed the highest photocatalytic activity due to the highest activation sites. Therefore, it is revealed that the Mn: 4 wt.% nanoparticles are observed to be more suitable for the photocatalytic activity of methylene blue dye degradation.

KW - Catalytic properties

KW - Methylene blue dye degradation

KW - Mn-doped NiO nanoparticles

KW - Optical properties

KW - Sol-gel method

UR - https://www.scopus.com/pages/publications/84985021188

U2 - 10.1016/j.ijleo.2016.08.126

DO - 10.1016/j.ijleo.2016.08.126

M3 - Article

AN - SCOPUS:84985021188

SN - 0030-4026

VL - 127

SP - 10727

EP - 10734

JO - Optik

JF - Optik

IS - 22

ER -

Photocatalytic properties of Mn-doped NiO spherical nanoparticles synthesized from sol-gel method

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