Publication:
Preparation and photocatalytic activity of iron oxide-loaded potassium titanate layered compounds

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Issued Date

2012

Resource Type

Article

File Type

application/pdf

ISSN

15334880

DOI

10.1166/jnn.2012.4915

Other identifier(s)

2-s2.0-84863972588

Rights Holder(s)

มหาวิทยาลัยศรีนครินทรวิโรฒ

Bibliographic Citation

Journal of Nanoscience and Nanotechnology. Vol 12, No.6 (2012), p.4969-4974

Suggested Citation

Tawkaew S., Supothina S. Preparation and photocatalytic activity of iron oxide-loaded potassium titanate layered compounds. Journal of Nanoscience and Nanotechnology. Vol 12, No.6 (2012), p.4969-4974. doi:10.1166/jnn.2012.4915 Retrieved from: https://hdl.handle.net/20.500.14740/7001

Title

Preparation and photocatalytic activity of iron oxide-loaded potassium titanate layered compounds

Author(s)

Tawkaew S.
 Supothina S.

Abstract

Iron oxide-loaded hydrous potassium tetratitanate (K 0.3Ti 4O 7.3(OH) 1.7) compounds consisting of 1.48 wt% (sample 'B'), 1.87 wt% (sample 'C') and 5.60 wt% (sample 'D') of iron oxide were synthesized by suspending the K 0.3Ti4O 7.3(OH) 1.7 (sample 'A') in Fe 2(SO 4.3 solution for 24 h, followed by washing several times with deionized water and then dried at 120 °C for 24 h. The K 0.3Ti4O 7.3(OH) 1.7 was synthesized by refluxing the K 2Ti 4O 9 2H 2O in 1 M HNO 3 solution. Band-gap energies of the K 0.3Ti4O 7.3(OH) 1.7 and the iron oxide-loaded samples are 3.12 ± 0.6 eV and 2.23 ± 0.09 eV, respectively. Photooxidation activity towards methylene blue decomposition under fluorescence irradiation was found to decrease as follow: sample 'B' > sample 'C' > Sample 'A' > sample 'D' > commercial Fe 2O 3 ∼ Blank. The photoactivity under sunlight irradiation was found to decrease as follow: sample 'B' > sample 'A' > Sample 'C' > sample 'D' > commercial Fe 2O 3 ∼ Blank. Keywords: Potassium Tetratitanate, Methylene Blue, Photooxidation, Fluorescence, Sunlight. Copyright © 2012 American Scientific Publishers All rights reserved.

Subject(s)

Band gap energy
 Layered compound
 Methylene Blue
 Photoactivity
 Photocatalytic activities
 Potassium tetratitanate
 Potassium titanates
 Refluxing
 Sunlight
 Sunlight irradiation
 Aromatic compounds
 Deionized water
 Fluorescence
 Iron oxides
 Irradiation
 Photocatalysis
 Photooxidation
 Potassium
 Titanium compounds
 Potassium compounds
 Ferric ion
 Ferric oxide
 Nanomaterial
 Titanate potassium
 Titanium
 Article
 Catalysis
 Chemistry
 Light
 Materials testing
 Particle size
 Radiation exposure
 Ultrastructure
 Catalysis
 Ferric Compounds
 Light
 Materials Testing
 Nanostructures
 Particle Size
 Titanium

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URI

https://hdl.handle.net/20.500.14740/7001

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Scopus: Year 1983-2021

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