Photocatalytic degradation of organic pollutants over visible light active plasmonic Ag nanoparticle loaded Ag 2 SO 3 photocatalysts

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Abstract

In this work, the efficiency of organic pollutants degradation over Ag nanoparticles (NPs) loaded Ag 2 SO 3 (AgSS) photocatalyst and the impact of reaction parameters on the degradation process are studied. Visible light active, AgSS plasmonic photocatalyst, was prepared by precipitation and chemical reduction method. The formation and well dispersion of cubic Ag NPs on the Ag 2 SO 3 surface with enhanced visible light absorption was investigated by X-ray diffraction (XRD), Field-emission scanning electron microscopy (FESEM), Energy Dispersive X-ray analysis (EDX) and UV–vis-NIR spectrophotometer. The photocatalytic activity of the prepared photocatalysts was evaluated by organic dye and phenol degradation reaction. The effects of different factors such as catalyst composition, light source, initial pollutant concentration and pH of the solutions were studied using organic dye Rhodamine B (RhB). It was found that the localized surface plasmon resonance (LSPR) absorption of Ag NPs is strongly dependent on the size, shape and amount of the NPs loaded. 1-AgSS showed the best photodegradation performance with 99% RhB removal in 2 h. The photoactivity of the 1-AgSS was better at both high and low pH environment. The 1-AgSS composition showed reusability for five successive experimental cycles and good structural stability. Moreover, the formation of intermediates in phenol degradation reaction was confirmed over the 1-AgSS sample by UV-spectra and HPLC analysis. We believe that the synthesized AgSS photocatalysts have promising potential for the photocatalytic elimination of organic pollutants from industrial effluents.

Original languageEnglish
Pages (from-to)191-200
Number of pages10
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume375
DOIs
Publication statusPublished - 15 Apr 2019

Fingerprint

rhodamine B
Organic pollutants
Photocatalysts
contaminants
degradation
Nanoparticles
Degradation
nanoparticles
rhodamine
Phenol
phenols
Phenols
Coloring Agents
Dyes
dyes
Energy dispersive X ray analysis
effluents
Spectrophotometers
Photodegradation
Reusability

Keywords

  • Ag NP loaded Ag SO
  • Phenol degradation
  • Photocatalysis
  • Rhodamine B degradation
  • Visible light

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

Cite this

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title = "Photocatalytic degradation of organic pollutants over visible light active plasmonic Ag nanoparticle loaded Ag 2 SO 3 photocatalysts",
abstract = "In this work, the efficiency of organic pollutants degradation over Ag nanoparticles (NPs) loaded Ag 2 SO 3 (AgSS) photocatalyst and the impact of reaction parameters on the degradation process are studied. Visible light active, AgSS plasmonic photocatalyst, was prepared by precipitation and chemical reduction method. The formation and well dispersion of cubic Ag NPs on the Ag 2 SO 3 surface with enhanced visible light absorption was investigated by X-ray diffraction (XRD), Field-emission scanning electron microscopy (FESEM), Energy Dispersive X-ray analysis (EDX) and UV–vis-NIR spectrophotometer. The photocatalytic activity of the prepared photocatalysts was evaluated by organic dye and phenol degradation reaction. The effects of different factors such as catalyst composition, light source, initial pollutant concentration and pH of the solutions were studied using organic dye Rhodamine B (RhB). It was found that the localized surface plasmon resonance (LSPR) absorption of Ag NPs is strongly dependent on the size, shape and amount of the NPs loaded. 1-AgSS showed the best photodegradation performance with 99{\%} RhB removal in 2 h. The photoactivity of the 1-AgSS was better at both high and low pH environment. The 1-AgSS composition showed reusability for five successive experimental cycles and good structural stability. Moreover, the formation of intermediates in phenol degradation reaction was confirmed over the 1-AgSS sample by UV-spectra and HPLC analysis. We believe that the synthesized AgSS photocatalysts have promising potential for the photocatalytic elimination of organic pollutants from industrial effluents.",
keywords = "Ag NP loaded Ag SO, Phenol degradation, Photocatalysis, Rhodamine B degradation, Visible light",
author = "Samsun Nahar and Hasan, {Md Riad} and Kadhum, {Abdul Amir H.} and {Abu Hasan}, Hassimi and {Mohd. Zain}, {Muhammad Fauzi}",
year = "2019",
month = "4",
day = "15",
doi = "10.1016/j.jphotochem.2019.02.025",
language = "English",
volume = "375",
pages = "191--200",
journal = "Journal of Photochemistry and Photobiology A: Chemistry",
issn = "1010-6030",
publisher = "Elsevier",

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T1 - Photocatalytic degradation of organic pollutants over visible light active plasmonic Ag nanoparticle loaded Ag 2 SO 3 photocatalysts

AU - Nahar, Samsun

AU - Hasan, Md Riad

AU - Kadhum, Abdul Amir H.

AU - Abu Hasan, Hassimi

AU - Mohd. Zain, Muhammad Fauzi

PY - 2019/4/15

Y1 - 2019/4/15

N2 - In this work, the efficiency of organic pollutants degradation over Ag nanoparticles (NPs) loaded Ag 2 SO 3 (AgSS) photocatalyst and the impact of reaction parameters on the degradation process are studied. Visible light active, AgSS plasmonic photocatalyst, was prepared by precipitation and chemical reduction method. The formation and well dispersion of cubic Ag NPs on the Ag 2 SO 3 surface with enhanced visible light absorption was investigated by X-ray diffraction (XRD), Field-emission scanning electron microscopy (FESEM), Energy Dispersive X-ray analysis (EDX) and UV–vis-NIR spectrophotometer. The photocatalytic activity of the prepared photocatalysts was evaluated by organic dye and phenol degradation reaction. The effects of different factors such as catalyst composition, light source, initial pollutant concentration and pH of the solutions were studied using organic dye Rhodamine B (RhB). It was found that the localized surface plasmon resonance (LSPR) absorption of Ag NPs is strongly dependent on the size, shape and amount of the NPs loaded. 1-AgSS showed the best photodegradation performance with 99% RhB removal in 2 h. The photoactivity of the 1-AgSS was better at both high and low pH environment. The 1-AgSS composition showed reusability for five successive experimental cycles and good structural stability. Moreover, the formation of intermediates in phenol degradation reaction was confirmed over the 1-AgSS sample by UV-spectra and HPLC analysis. We believe that the synthesized AgSS photocatalysts have promising potential for the photocatalytic elimination of organic pollutants from industrial effluents.

AB - In this work, the efficiency of organic pollutants degradation over Ag nanoparticles (NPs) loaded Ag 2 SO 3 (AgSS) photocatalyst and the impact of reaction parameters on the degradation process are studied. Visible light active, AgSS plasmonic photocatalyst, was prepared by precipitation and chemical reduction method. The formation and well dispersion of cubic Ag NPs on the Ag 2 SO 3 surface with enhanced visible light absorption was investigated by X-ray diffraction (XRD), Field-emission scanning electron microscopy (FESEM), Energy Dispersive X-ray analysis (EDX) and UV–vis-NIR spectrophotometer. The photocatalytic activity of the prepared photocatalysts was evaluated by organic dye and phenol degradation reaction. The effects of different factors such as catalyst composition, light source, initial pollutant concentration and pH of the solutions were studied using organic dye Rhodamine B (RhB). It was found that the localized surface plasmon resonance (LSPR) absorption of Ag NPs is strongly dependent on the size, shape and amount of the NPs loaded. 1-AgSS showed the best photodegradation performance with 99% RhB removal in 2 h. The photoactivity of the 1-AgSS was better at both high and low pH environment. The 1-AgSS composition showed reusability for five successive experimental cycles and good structural stability. Moreover, the formation of intermediates in phenol degradation reaction was confirmed over the 1-AgSS sample by UV-spectra and HPLC analysis. We believe that the synthesized AgSS photocatalysts have promising potential for the photocatalytic elimination of organic pollutants from industrial effluents.

KW - Ag NP loaded Ag SO

KW - Phenol degradation

KW - Photocatalysis

KW - Rhodamine B degradation

KW - Visible light

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U2 - 10.1016/j.jphotochem.2019.02.025

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VL - 375

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EP - 200

JO - Journal of Photochemistry and Photobiology A: Chemistry

JF - Journal of Photochemistry and Photobiology A: Chemistry

SN - 1010-6030

ER -