Arabian Journal of Chemistry

Arabian Journal of Chemistry

Volume 7, Issue 5, November 2014, Pages 752-757
Arabian Journal of Chemistry

ORIGINAL ARTICLE
Full factorial experimental design applied to oxalic acid photocatalytic degradation in TiO2 aqueous suspension

https://doi.org/10.1016/j.arabjc.2010.12.015Get rights and content
Under a Creative Commons license
open access

Abstract

Full factorial experimental design technique was used to study the main effects and the interaction effects between operational parameters in the photocatalytic degradation of oxalic acid in a batch photo-reactor using TiO2 aqueous suspension. The important parameters which affect the removal efficiency of oxalic acid such as agitation, initial concentration, volume of the solution and TiO2 dosage were investigated. The parameters were coded as X1, X2, X3 and X4, consecutively, and were investigated at two levels (−1 and +1). The effects of individual variables and their interaction effects for dependent variables, namely, photocatalytic degradation efficiency (%) were determined. From the statistical analysis, the most effective parameters in the photocatalytic degradation efficiency were initial concentration and volume of solution. The interaction between initial concentration, volume of solution and TiO2 dosage was the most influencing interaction. However, the interaction between agitation, initial concentration and volume of solution was the least influencing parameter.

Keywords

Photocatalysis
Oxalic acid
Factorial experimental design
Intercalation

Cited by (0)

Available online 17 December 2010

  1. Download : Download full-size image

Peer review under responsibility of King Saud University.