Photocatalytic degradation of methylene blue dye under visible light over Cr doped strontium titanate (SrTiO 3) nanoparticles

Inamur Rahman Qazi; Woo Jin Lee; Hyun Cheol Lee; Mallick Shamshi Hassan; O. Bong Yang

doi:10.1166/jnn.2010.2326

Photocatalytic degradation of methylene blue dye under visible light over Cr doped strontium titanate (SrTiO ₃) nanoparticles

Inamur Rahman Qazi
, Woo Jin Lee
, Hyun Cheol Lee
, Mallick Shamshi Hassan
, O. Bong Yang^*

^*Corresponding author for this work

Division of Chemical Engineering

Jeonbuk National University

Research output: Contribution to journal › Journal article › peer-review

23 Scopus citations

Abstract

Strontium titanate (SrTiO ₃) and chromium doped SrTiO ₃ (Cr/SrTiO ₃) were prepared by modified sol-gel method with the citric acid as a chelating agent in the ethylene glycol solution for the effective photodegradation of methylene blue dye under visible light irradiation. The synthesized doped and un-doped SrTiO ₃ nanoparticles were structurally characterized and their photoresponse performances for the efficient degradation of methylene blue dye have been demonstrated. After introducing the Cr on SrTiO ₃, UV-Vis absorption was appeared the red-shift at 566 nm from 392 nm as compare with bare SrTiO ₃. The photocatalytic degradation activity of Cr/SrTiO ₃ was significantly improved to 60% degradation of methylene blue in 3 h under visible light, which is ∼5 times higher than that of the bare SrTiO ₃.

Original language	English
Pages (from-to)	3430-3434
Number of pages	5
Journal	Journal of nanoscience and nanotechnology
Volume	10
Issue number	5
DOIs	https://doi.org/10.1166/jnn.2010.2326
State	Published - 2010.05

Keywords

Methylene blue
Photodegradation
Sol-Gel method
SrTiO

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Engineering - Chemical
Chemistry
Physics & Astronomy
Biological Sciences

Access to Document

10.1166/jnn.2010.2326

Cite this

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title = "Photocatalytic degradation of methylene blue dye under visible light over Cr doped strontium titanate (SrTiO 3) nanoparticles",

abstract = "Strontium titanate (SrTiO 3) and chromium doped SrTiO 3 (Cr/SrTiO 3) were prepared by modified sol-gel method with the citric acid as a chelating agent in the ethylene glycol solution for the effective photodegradation of methylene blue dye under visible light irradiation. The synthesized doped and un-doped SrTiO 3 nanoparticles were structurally characterized and their photoresponse performances for the efficient degradation of methylene blue dye have been demonstrated. After introducing the Cr on SrTiO 3, UV-Vis absorption was appeared the red-shift at 566 nm from 392 nm as compare with bare SrTiO 3. The photocatalytic degradation activity of Cr/SrTiO 3 was significantly improved to 60\% degradation of methylene blue in 3 h under visible light, which is ∼5 times higher than that of the bare SrTiO 3.",

keywords = "Methylene blue, Photodegradation, Sol-Gel method, SrTiO",

author = "Qazi, \{Inamur Rahman\} and Lee, \{Woo Jin\} and Lee, \{Hyun Cheol\} and Hassan, \{Mallick Shamshi\} and Yang, \{O. Bong\}",

year = "2010",

month = may,

doi = "10.1166/jnn.2010.2326",

language = "English",

volume = "10",

pages = "3430--3434",

journal = "Journal of nanoscience and nanotechnology",

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TY - JOUR

T1 - Photocatalytic degradation of methylene blue dye under visible light over Cr doped strontium titanate (SrTiO 3) nanoparticles

AU - Qazi, Inamur Rahman

AU - Lee, Woo Jin

AU - Lee, Hyun Cheol

AU - Hassan, Mallick Shamshi

AU - Yang, O. Bong

PY - 2010/5

Y1 - 2010/5

N2 - Strontium titanate (SrTiO 3) and chromium doped SrTiO 3 (Cr/SrTiO 3) were prepared by modified sol-gel method with the citric acid as a chelating agent in the ethylene glycol solution for the effective photodegradation of methylene blue dye under visible light irradiation. The synthesized doped and un-doped SrTiO 3 nanoparticles were structurally characterized and their photoresponse performances for the efficient degradation of methylene blue dye have been demonstrated. After introducing the Cr on SrTiO 3, UV-Vis absorption was appeared the red-shift at 566 nm from 392 nm as compare with bare SrTiO 3. The photocatalytic degradation activity of Cr/SrTiO 3 was significantly improved to 60% degradation of methylene blue in 3 h under visible light, which is ∼5 times higher than that of the bare SrTiO 3.

AB - Strontium titanate (SrTiO 3) and chromium doped SrTiO 3 (Cr/SrTiO 3) were prepared by modified sol-gel method with the citric acid as a chelating agent in the ethylene glycol solution for the effective photodegradation of methylene blue dye under visible light irradiation. The synthesized doped and un-doped SrTiO 3 nanoparticles were structurally characterized and their photoresponse performances for the efficient degradation of methylene blue dye have been demonstrated. After introducing the Cr on SrTiO 3, UV-Vis absorption was appeared the red-shift at 566 nm from 392 nm as compare with bare SrTiO 3. The photocatalytic degradation activity of Cr/SrTiO 3 was significantly improved to 60% degradation of methylene blue in 3 h under visible light, which is ∼5 times higher than that of the bare SrTiO 3.

KW - Methylene blue

KW - Photodegradation

KW - Sol-Gel method

KW - SrTiO

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DO - 10.1166/jnn.2010.2326

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