Structural, optical, photocurrent and solar driven photocatalytic properties of vertically aligned samarium doped ZnO nanorod arrays

D. Ranjith Kumar; K. S. Ranjith; R. T. Rajendra Kumar

doi:10.1016/j.ijleo.2017.10.004

Structural, optical, photocurrent and solar driven photocatalytic properties of vertically aligned samarium doped ZnO nanorod arrays

D. Ranjith Kumar, K. S. Ranjith, R. T. Rajendra Kumar

Department of Energy and Materials Engineering

Bharathiar University

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

63 Scopus citations

Abstract

Vertically aligned, Samarium (Sm) doped zinc oxide (ZnO) nanorod (NR) arrays have been synthesized by simple vapour transport process. The samples were characterized by FESEM, XRD, PL, Raman spectroscopy and XPS. FESEM results showed that incorporation of Sm caused decrease in length of NRs from 25 μm to 9 μm and influence the alignment of NRs. The photocatalytic activities of methylene blue (MB) under natural sunlight irradiation results showed that the enhancement of photocatalytic efficiency from 83.02 to 97.3% for Sm doped (0–6%) ZnO NRs arrays and decreased 95.72% for higher concentration 8% of Sm. The photocurrent measurement shows photosensitivity increased from 1.085, 1.093, 1.268, 3.270 and 1.486 for ZnO NR arrays and Sm doped (2–6%) ZnO NR arrays and decreased for 8% Sm doped ZnO NR arrays. This result revealed that doping of Sm could enhance the visible-light-driven PC properties of ZnO.

Original language	English
Pages (from-to)	115-125
Number of pages	11
Journal	Optik
Volume	154
DOIs	https://doi.org/10.1016/j.ijleo.2017.10.004
State	Published - Feb 2018

Keywords

Photocatalytic
Samarium
Visible light
ZnO

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10.1016/j.ijleo.2017.10.004

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title = "Structural, optical, photocurrent and solar driven photocatalytic properties of vertically aligned samarium doped ZnO nanorod arrays",

abstract = "Vertically aligned, Samarium (Sm) doped zinc oxide (ZnO) nanorod (NR) arrays have been synthesized by simple vapour transport process. The samples were characterized by FESEM, XRD, PL, Raman spectroscopy and XPS. FESEM results showed that incorporation of Sm caused decrease in length of NRs from 25 μm to 9 μm and influence the alignment of NRs. The photocatalytic activities of methylene blue (MB) under natural sunlight irradiation results showed that the enhancement of photocatalytic efficiency from 83.02 to 97.3% for Sm doped (0–6%) ZnO NRs arrays and decreased 95.72% for higher concentration 8% of Sm. The photocurrent measurement shows photosensitivity increased from 1.085, 1.093, 1.268, 3.270 and 1.486 for ZnO NR arrays and Sm doped (2–6%) ZnO NR arrays and decreased for 8% Sm doped ZnO NR arrays. This result revealed that doping of Sm could enhance the visible-light-driven PC properties of ZnO.",

keywords = "Photocatalytic, Samarium, Visible light, ZnO",

author = "{Ranjith Kumar}, D. and Ranjith, {K. S.} and {Rajendra Kumar}, {R. T.}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier GmbH",

year = "2018",

month = feb,

doi = "10.1016/j.ijleo.2017.10.004",

language = "English",

volume = "154",

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journal = "Optik",

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T1 - Structural, optical, photocurrent and solar driven photocatalytic properties of vertically aligned samarium doped ZnO nanorod arrays

AU - Ranjith Kumar, D.

AU - Ranjith, K. S.

AU - Rajendra Kumar, R. T.

PY - 2018/2

Y1 - 2018/2

N2 - Vertically aligned, Samarium (Sm) doped zinc oxide (ZnO) nanorod (NR) arrays have been synthesized by simple vapour transport process. The samples were characterized by FESEM, XRD, PL, Raman spectroscopy and XPS. FESEM results showed that incorporation of Sm caused decrease in length of NRs from 25 μm to 9 μm and influence the alignment of NRs. The photocatalytic activities of methylene blue (MB) under natural sunlight irradiation results showed that the enhancement of photocatalytic efficiency from 83.02 to 97.3% for Sm doped (0–6%) ZnO NRs arrays and decreased 95.72% for higher concentration 8% of Sm. The photocurrent measurement shows photosensitivity increased from 1.085, 1.093, 1.268, 3.270 and 1.486 for ZnO NR arrays and Sm doped (2–6%) ZnO NR arrays and decreased for 8% Sm doped ZnO NR arrays. This result revealed that doping of Sm could enhance the visible-light-driven PC properties of ZnO.

AB - Vertically aligned, Samarium (Sm) doped zinc oxide (ZnO) nanorod (NR) arrays have been synthesized by simple vapour transport process. The samples were characterized by FESEM, XRD, PL, Raman spectroscopy and XPS. FESEM results showed that incorporation of Sm caused decrease in length of NRs from 25 μm to 9 μm and influence the alignment of NRs. The photocatalytic activities of methylene blue (MB) under natural sunlight irradiation results showed that the enhancement of photocatalytic efficiency from 83.02 to 97.3% for Sm doped (0–6%) ZnO NRs arrays and decreased 95.72% for higher concentration 8% of Sm. The photocurrent measurement shows photosensitivity increased from 1.085, 1.093, 1.268, 3.270 and 1.486 for ZnO NR arrays and Sm doped (2–6%) ZnO NR arrays and decreased for 8% Sm doped ZnO NR arrays. This result revealed that doping of Sm could enhance the visible-light-driven PC properties of ZnO.

KW - Photocatalytic

KW - Samarium

KW - Visible light

KW - ZnO

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DO - 10.1016/j.ijleo.2017.10.004

M3 - Article

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VL - 154

SP - 115

EP - 125

JO - Optik

JF - Optik

ER -

Structural, optical, photocurrent and solar driven photocatalytic properties of vertically aligned samarium doped ZnO nanorod arrays

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Keywords

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