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首页> 外文期刊>RSC Advances >Selective sorption and subsequent photocatalytic degradation of cationic dyes by sonochemically synthesized nano CuWO4 and Cu3Mo2O9
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Selective sorption and subsequent photocatalytic degradation of cationic dyes by sonochemically synthesized nano CuWO4 and Cu3Mo2O9

机译：声化学合成纳米CuWO4和Cu3Mo2O9对阳离子染料的选择性吸附和随后的光催化降解

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摘要

Sorption of harmful organic pollutants from industrial effluents and their concomitant photodegradation by the sorbent under visible light can be an effective method for wastewater remediation. In this work, we report the facile synthesis of CuWO4 and Cu3Mo2O9 nanoparticles via a simple sonochemical approach. The materials exhibit superior selective sorption of cationic dyes. The uptake of cationic dyes like rhodamine B (RhB), methylene blue (MB) and malachite green (MG) have been studied along with their adsorption kinetics. The sorption plots have been fitted to various isotherms and the results have been discussed in detail. Removal of the dye from the sorbent has been carried out via mechanical agitation as well as via photocatalysis. The dye sorbed nanosorbents have been subjected to photocatalytic degradation under visible light and they show promising results. The sorbents can be completely removed from the system by simple centrifuging. The reusability of the sorbents has also been tested and they have been found to retain their efficiency after several consecutive runs. Thus, these materials show promise as effective remediators for industrial dye effluents.
机译：在可见光下，工业废水中有害有机污染物的吸附及其伴随的光降解可能是一种有效的废水修复方法。在这项工作中，我们报告了通过简单的声化学方法轻松合成CuWO4和Cu3Mo2O9纳米颗粒。该材料表现出优异的阳离子染料选择性吸附能力。已经研究了若丹明B（RhB），亚甲基蓝（MB）和孔雀石绿（MG）等阳离子染料的吸收及其吸附动力学。吸附曲线已经适合各种等温线，并且已经详细讨论了结果。通过机械搅拌以及光催化已经从吸附剂中去除染料。染料吸附的纳米吸附剂已经在可见光下经历了光催化降解，并且显示出令人鼓舞的结果。只需简单离心即可将吸附剂从系统中完全去除。还测试了吸附剂的可重复使用性，并发现在连续运行几次后，它们仍保持其效率。因此，这些材料有望成为工业染料废水的有效修复剂。

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