Critical Photonic Time (CPT): A New Primary Process Theory about Decolorization of Textile Dyes by a UV–H2O2FS–TiO2 System

Nditange Shigwedha; Jian Chen; Zhaozhe Hua

doi:10.1252/jcej.40.365

Environment

Critical Photonic Time (CPT): A New Primary Process Theory about Decolorization of Textile Dyes by a UV–H₂O_2FS–TiO₂ System

Nditange Shigwedha, Jian Chen, Zhaozhe Hua

著者情報

キーワード: Photocatalysis, Critical Photonic Time (CPT), Dye Resistivity, Photon Efficiency (PE^hν), Photon Deficiency (PD^hν)

ジャーナル認証あり

2007 年 40 巻 4 号 p. 365-370

DOI https://doi.org/10.1252/jcej.40.365

詳細

抄録

A kinetic-measure was developed to explain time-resolved observations during the overall decolorization of organic dyes. Critical photonic times (CPTs) were calculated for the photocatalytic degradation of four organic textile dyes. Three different frequencies of UV were applied to the dyes. Use of CPT principles improved decolorization by 100%. Moreover, CPT calculations predicted dye resistivity and allowed the assessment of photon efficiencies and deficiencies in dyes and UV lamps combination. The derivatization and evaluation of CPTs from the slopes of the linear plots are presented.

責任著者(Corresponding author)

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