Advanced removal of crystal violet dye from aqueous solutions by photocatalysis using commercial products containing titanium dioxide

被引：5

作者：

Cretescu, Igor ^{[1
]}

Lutic, Doina ^{[2
]}

机构：

[1] Gheorghe Asachi Tech Univ Iasi, Fac Chem Engn & Environm Protect, Dept Environm Engn & Management, 73 Prof D Mangeron St, Iasi 700050, Romania

[2] Alexandru Ioan Cuza Univ, Fac Chem, Bd Carol I 11, Iasi 700506, Romania

来源：

COMPTES RENDUS CHIMIE | 2022年 / 25卷

关键词：

Crystal violet; Photocatalytic removal; Hydrogen peroxide; Mineralization; Commerical titania; H2O2; DEGRADATION; O-2(CENTER-DOT-); PHOTODEGRADATION; SUSPENSIONS;

D O I：

10.5802/crchim.150

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two commercial products containing titanium dioxide, P-25 and Kronos 7000, were used for the detailed investigation of the advanced degradation of crystal violet (CV) dye by photocatal-ysis. The parametric study concerning the influence of the initial dye concentration, photocatalyst dose, pH of the medium and hydrogen peroxide addition in the reaction batch was performed. The net superiority of P-25 in the decolorization was further highlighted by measuring the mineralization degree by TOC. The potential application of the results is confirmed by reaching 86-87% mineraliza-tion degrees after 180 min in the presence of 1 g center dot L-1 P-25 or in 120 min using additionally 100 ppm H2O2.

引用

页码：39 / 50

页数：13

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