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首页> 外文期刊>Journal of Applied Polymer Science >Textile with a hydrogel and iron oxide nanoparticles for wastewater treatment after reactive dyeing
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Textile with a hydrogel and iron oxide nanoparticles for wastewater treatment after reactive dyeing

机译：具有水凝胶和氧化铁纳米粒子的纺织品，用于反应性染色后的废水处理

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摘要

In this work, we describe for the first time the synthesis of a hydrogel with iron oxide nanoparticles, uniformly distributed in its structure on a polyamide fabric by surface initiated photopolymerization. The type of outgoing iron ions Fe(II), Fe(III), and the combination between them influences the properties of the iron oxide particles and the obtained composite materials (PAF2, PAF3, and PAF32). All composite materials have been investigated as catalysts in heterogeneous Fenton process for treating real industrial wastewater after dyeing of cotton fabric with reactive dye Drimarene K-7B. Different conditions on the degradation of this dye have been investigated. The best result for discoloration has been obtained with PAF2 at concentration 9.4 g L(-1)and pH = 2.2 in the presence of H2O2(93.3 mmol L-1, where 78% of dye was degraded for 24 h and 90.5%-for 48 h. The high salinity of wastewaters, typical for dyeing with reactive dyes favors discoloration, while surface-active agents hinder the process. The obtained material is reusable and is more effective in less polluted water solutions. It has been found that the composite material can be used repeatedly.
机译：在这项工作中，我们首次描述了通过表面引发光聚合，在聚酰胺织物上均匀分布氧化铁纳米颗粒的水凝胶的合成。流出铁离子Fe（II）、Fe（III）的类型以及它们之间的组合影响氧化铁颗粒和所获得的复合材料（PAF2、PAF3和PAF32）的性能。在非均相Fenton法中，研究了所有复合材料作为催化剂处理棉织物活性染料Drimarene K-7B染色后的实际工业废水。研究了不同条件对该染料降解的影响。在H2O2存在的情况下，PAF2在浓度为9.4 g L（-1）且pH=2.2时的变色效果最佳（93.3 mmol L-1，其中78%的染料在24小时内降解，90.5%在48小时内降解。废水的高盐度（通常用于活性染料染色）有利于变色，而表面活性剂阻碍了这一过程。所得材料可重复使用，在污染较少的水溶液中更有效。人们发现，复合材料可以重复使用。

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