Synthesis of supported silver nano-spheres on zinc oxide nanorods for visible light photocatalytic applications

Khaled Saoud, Rola Alsoubaihi, Nasr Bensalah, Tanujjal Bora, Massimo Bertino, Joydeep Dutta

Research output: Contribution to journalArticle

53 Citations (Scopus)

Abstract

We report the synthesis of silver (Ag) nano-spheres (NS) supported on zinc oxide (ZnO) nanorods through two step mechanism, using open vessel microwave reactor. Direct reduction of ZnO from zinc nitrates was followed by deposition precipitation of the silver on the ZnO nanorods. The supported Ag/ZnO nanoparticles were then characterized by electron microscopy, X-ray diffraction, FTIR, photoluminescence and UV-vis spectroscopy. The visible light photocatalytic activity of Ag/ZnO system was investigated using a test contaminant, methylene blue (MB). Almost complete removal of MB in about 60 min for doses higher than 0.5 g/L of the Ag/ZnO photocatalyst was achieved. This significant improvement in the photocatalytic efficiency of Ag/ZnO photocatalyst under visible light irradiation can be attributed to the presence of Ag nanoparticles on the ZnO nanoparticles which greatly enhances absorption in the visible range of solar spectrum enabled by surface plasmon resonance effect from Ag nanoparticles.

Original languageEnglish
Pages (from-to)134-140
Number of pages7
JournalMaterials Research Bulletin
Volume63
DOIs
Publication statusPublished - 2015

Fingerprint

Zinc Oxide
Zinc oxide
Nanorods
Silver
zinc oxides
nanorods
silver
synthesis
Nanoparticles
nanoparticles
Methylene Blue
methylene blue
Photocatalysts
solar spectra
Surface plasmon resonance
Ultraviolet spectroscopy
surface plasmon resonance
Electron microscopy
contaminants
vessels

Keywords

  • Metal-semiconductor composite
  • Photocatalysis
  • Silver nanoparticles
  • Supported catalyst
  • ZnO nanorods

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Synthesis of supported silver nano-spheres on zinc oxide nanorods for visible light photocatalytic applications. / Saoud, Khaled; Alsoubaihi, Rola; Bensalah, Nasr; Bora, Tanujjal; Bertino, Massimo; Dutta, Joydeep.

In: Materials Research Bulletin, Vol. 63, 2015, p. 134-140.

Research output: Contribution to journalArticle

Saoud, Khaled ; Alsoubaihi, Rola ; Bensalah, Nasr ; Bora, Tanujjal ; Bertino, Massimo ; Dutta, Joydeep. / Synthesis of supported silver nano-spheres on zinc oxide nanorods for visible light photocatalytic applications. In: Materials Research Bulletin. 2015 ; Vol. 63. pp. 134-140.
@article{cc189f5d7dbd40078c4a0e62e7baf7f6,
title = "Synthesis of supported silver nano-spheres on zinc oxide nanorods for visible light photocatalytic applications",
abstract = "We report the synthesis of silver (Ag) nano-spheres (NS) supported on zinc oxide (ZnO) nanorods through two step mechanism, using open vessel microwave reactor. Direct reduction of ZnO from zinc nitrates was followed by deposition precipitation of the silver on the ZnO nanorods. The supported Ag/ZnO nanoparticles were then characterized by electron microscopy, X-ray diffraction, FTIR, photoluminescence and UV-vis spectroscopy. The visible light photocatalytic activity of Ag/ZnO system was investigated using a test contaminant, methylene blue (MB). Almost complete removal of MB in about 60 min for doses higher than 0.5 g/L of the Ag/ZnO photocatalyst was achieved. This significant improvement in the photocatalytic efficiency of Ag/ZnO photocatalyst under visible light irradiation can be attributed to the presence of Ag nanoparticles on the ZnO nanoparticles which greatly enhances absorption in the visible range of solar spectrum enabled by surface plasmon resonance effect from Ag nanoparticles.",
keywords = "Metal-semiconductor composite, Photocatalysis, Silver nanoparticles, Supported catalyst, ZnO nanorods",
author = "Khaled Saoud and Rola Alsoubaihi and Nasr Bensalah and Tanujjal Bora and Massimo Bertino and Joydeep Dutta",
year = "2015",
doi = "10.1016/j.materresbull.2014.12.001",
language = "English",
volume = "63",
pages = "134--140",
journal = "Materials Research Bulletin",
issn = "0025-5408",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Synthesis of supported silver nano-spheres on zinc oxide nanorods for visible light photocatalytic applications

AU - Saoud, Khaled

AU - Alsoubaihi, Rola

AU - Bensalah, Nasr

AU - Bora, Tanujjal

AU - Bertino, Massimo

AU - Dutta, Joydeep

PY - 2015

Y1 - 2015

N2 - We report the synthesis of silver (Ag) nano-spheres (NS) supported on zinc oxide (ZnO) nanorods through two step mechanism, using open vessel microwave reactor. Direct reduction of ZnO from zinc nitrates was followed by deposition precipitation of the silver on the ZnO nanorods. The supported Ag/ZnO nanoparticles were then characterized by electron microscopy, X-ray diffraction, FTIR, photoluminescence and UV-vis spectroscopy. The visible light photocatalytic activity of Ag/ZnO system was investigated using a test contaminant, methylene blue (MB). Almost complete removal of MB in about 60 min for doses higher than 0.5 g/L of the Ag/ZnO photocatalyst was achieved. This significant improvement in the photocatalytic efficiency of Ag/ZnO photocatalyst under visible light irradiation can be attributed to the presence of Ag nanoparticles on the ZnO nanoparticles which greatly enhances absorption in the visible range of solar spectrum enabled by surface plasmon resonance effect from Ag nanoparticles.

AB - We report the synthesis of silver (Ag) nano-spheres (NS) supported on zinc oxide (ZnO) nanorods through two step mechanism, using open vessel microwave reactor. Direct reduction of ZnO from zinc nitrates was followed by deposition precipitation of the silver on the ZnO nanorods. The supported Ag/ZnO nanoparticles were then characterized by electron microscopy, X-ray diffraction, FTIR, photoluminescence and UV-vis spectroscopy. The visible light photocatalytic activity of Ag/ZnO system was investigated using a test contaminant, methylene blue (MB). Almost complete removal of MB in about 60 min for doses higher than 0.5 g/L of the Ag/ZnO photocatalyst was achieved. This significant improvement in the photocatalytic efficiency of Ag/ZnO photocatalyst under visible light irradiation can be attributed to the presence of Ag nanoparticles on the ZnO nanoparticles which greatly enhances absorption in the visible range of solar spectrum enabled by surface plasmon resonance effect from Ag nanoparticles.

KW - Metal-semiconductor composite

KW - Photocatalysis

KW - Silver nanoparticles

KW - Supported catalyst

KW - ZnO nanorods

UR - http://www.scopus.com/inward/record.url?scp=84918553605&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84918553605&partnerID=8YFLogxK

U2 - 10.1016/j.materresbull.2014.12.001

DO - 10.1016/j.materresbull.2014.12.001

M3 - Article

AN - SCOPUS:84918553605

VL - 63

SP - 134

EP - 140

JO - Materials Research Bulletin

JF - Materials Research Bulletin

SN - 0025-5408

ER -