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首页> 外文期刊>Research on Chemical Intermediates >Modeling and optimization of simultaneous photocatalysis of three dyes on ceramic-coated TiO_2 nanoparticles using chemometrics methods: phytotoxicological assessment during degradation process
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Modeling and optimization of simultaneous photocatalysis of three dyes on ceramic-coated TiO_2 nanoparticles using chemometrics methods: phytotoxicological assessment during degradation process

机译：使用化学计量学建模和优化三种染料在陶瓷包覆的TiO_2纳米粒子上同时光催化的方法：降解过程中的植物毒理学评估

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摘要

In this paper, ceramic plates were used as a support of TiO_2 nanoparticles for photocatalytic decolorization of a mixture of three dyes. The three textile dyes (C.I. Basic Red 46, C.I. Basic Blue 3 and Malachite Green) were quantified simultaneously during the photocatalytic degradation process. The partial least squares modeling was successfully applied for the multivariate calibration of the spectrophotometric data. Also, the central composite design has been applied to the optimization of photocatalytic decolorization of the dye solution containing three dyes using an immobilized UV/TiO_2 process. The optimum initial concentration of three dyes, reaction time, and UV light intensity were found to be 5 mg/L, 240 min, and 47.2 W/m~2, respectively. The chronic phytotoxicity of mixture of dyes was evaluated using aquatic species Spirodela polyrhiza (S. polyrhiza) prior to and after photocatalysis. The phytotoxicity results revealed that the photocatalysis process could effectively reduce the phytotoxicity of the dyes from their aqueous solutions.
机译：在本文中，陶瓷板用作TiO_2纳米粒子的载体，用于三种染料的混合物的光催化脱色。在光催化降解过程中，同时定量了三种纺织品染料（C.I.碱性红46，C.I。碱性蓝3和孔雀石绿）。偏最小二乘模型已成功应用于分光光度数据的多元校准。而且，中心复合设计已应用于通过固定化UV / TiO_2工艺优化包含三种染料的染料溶液的光催化脱色效果。三种染料的最佳初始浓度，反应时间和紫外光强度分别为5 mg / L，240 min和47.2 W / m〜2。在光催化之前和之后，使用水生物种Spirodela polyrhiza（S. polyrhiza）评估染料混合物的慢性植物毒性。植物毒性结果表明，光催化过程可以有效降低染料从其水溶液中的植物毒性。

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