An investigation of LiNbO3 photocatalyst coating on concrete surface for improving indoor air quality

Ranjit K. Nath, Muhammad Fauzi Mohd. Zain, Abdul Amir H. Kadhum, A. B M A Kaish

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The photocatalytic degradation of volatile organic compounds (VOCs) from the indoor air is an established method for improving the indoor environment. This paper investigates the photocatalytic degradation of ethyl benzene and toluene by using a new photocatalyst LiNbO3. LiNbO3 is applied as a coating material on the concrete surface and investigate its effectiveness under various operational parameters like the depth of coating, and initial concentration of VOCs. The efficiency of VOCs degradation is measured by gas chromatography-flame ionization detector (GC-FID) and scanning electron microscope (SEM) observations. Test results show that the performance of LiNbO3 is better than that of widely used photocatalyst TiO 2 in removing VOCs from indoor environment. Degradation rate of VOC increases with the increase of depth of coating. Therefore, LiNbO3 can be used as a promising photocatalyst to remove VOCs from the indoor air.

Original languageEnglish
Pages (from-to)348-353
Number of pages6
JournalConstruction and Building Materials
Volume54
DOIs
Publication statusPublished - 15 Mar 2014

Fingerprint

Volatile Organic Compounds
Photocatalysts
Volatile organic compounds
Air quality
Concretes
Coatings
Degradation
Ethylbenzene
Toluene
Air
Gas chromatography
Ionization
lithium niobate
Electron microscopes
Detectors
Scanning

Keywords

  • Indoor air improvement
  • LiNbO
  • Photocatalysis
  • VOC degradation

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Materials Science(all)

Cite this

An investigation of LiNbO3 photocatalyst coating on concrete surface for improving indoor air quality. / Nath, Ranjit K.; Mohd. Zain, Muhammad Fauzi; Kadhum, Abdul Amir H.; Kaish, A. B M A.

In: Construction and Building Materials, Vol. 54, 15.03.2014, p. 348-353.

Research output: Contribution to journalArticle

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