PVC-FE掺杂ZNO-纳米复合薄片与亚甲基蓝染料在水中的同时光降解

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-05-25 DOI:10.3846/jeelm.2022.16743

A. Roy, S. Chakrabarti, S. Maitra

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引用次数: 2

摘要

本工作尝试同时对亚甲基蓝（MB）染料进行太阳能光催化脱色，并在水中降解聚合物纳米复合膜。将掺铁氧化锌纳米粒子（NP）薄膜固定在聚氯乙烯（PVC）基体中。这降低了从处理过的水中分离纳米颗粒的成本。使用乙酰丙酮锌（0.95mmol）和乙酰丙酮铁（0.05mmol）前体在含水乙醇介质中超声化学制备掺杂的NP。XRD、UV-vis光谱、FESEM和EDX用于表征纳米颗粒，而SEM则对薄膜进行了表征。在这一过程中，薄膜的重量也有所减轻。染料和聚合物的降解都遵循伪一级动力学。在3小时45分钟的运行时间后，染料的初始浓度的约28%和PVC膜的初始重量的约5.04%在该过程中降低。

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SIMULTANEOUS SOLAR PHOTO-DEGRADATION OF PVC-FE-DOPED ZNO-NANOCOMPOSITE FLAKES AND METHYLENE BLUE DYE IN WATER

Simultaneous solar photocatalytic decolorization of Methlene Blue (MB) dye and degradation of polymer nanocomposite film in water has been attempted in the present work. The film immobilized iron (Fe)-doped zinc oxide (ZnO) nanoparticles (NPs) in polyvinyl chloride (PVC) matrix. This reduced the cost of separation of nanoparticles from treated water. Doped NPs were prepared sonochemically using zinc acetylacetonate (0.95 mmol) and ferric acetylacetonate (0.05 mmol) precursors in aqueous ethanol medium. XRD, UV-vis spectroscopy, FESEM and EDX were used for characterizing nanoparticles whereas the film was characterized by SEM. During the process, the film also reduced in weight. Degradation of both the dye and the polymer followed pseudo-first order kinetics. About 28% of the initial concentration of dye and about 5.04% of the initial weight of the PVC-film were decreased in the process after a run time of 3 h 45 minutes.

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.