添加纳米光催化剂 WO3 对 PVDF 膜特性和性能的影响

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-07-10 DOI:10.3311/ppch.24008

T. Kusworo, Monica Yulfarida, A. C. Kumoro, D. P. Utomo, N. Aryanti

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引用次数: 0

摘要

在膜中添加光催化剂材料在提高膜性能和特性方面具有巨大潜力。本研究将纳米光催化剂 WO3 添加到聚偏氟乙烯（PVDF）膜中，用于橡胶工业的工艺水处理。扫描电镜和 XRD 的结果显示了纳米光催化剂 WO3 的存在，表明纳米光催化剂已成功嵌入 PVDF 膜中。纳米光催化剂材料的加入增加了膜的亲水性，提高了膜的吸水能力，降低了膜的接触角。PVDF-WO3-2%wt 膜的通量值最高，为 64.29 L m-2 h-1，化学需氧量（COD）、总溶解固体（TDS）和氨氮的去除率分别为 96.40%、85.61% 和 93.88%。在可见光照射下，PVDF-WO3 的过滤结果差异显著，证明了其光催化降解效果。膜在光过滤（可见光）条件下的性能优于黑暗条件下。在光过滤过程中使用 8 小时后，PVDF-WO3-2%wt 膜还显示出极佳的重复使用性。这项研究有望增加光催化膜在将橡胶废水处理成清洁水方面的应用。

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Effect of Nanophotocatalyst WO3 Addition on PVDF Membrane Characteristics and Performance

The addition of photocatalyst materials in the membrane has great potential to increase membrane performance and characteristics. In this study, nano photocatalysts WO3 were added to the polyvinylidene fluoride (PVDF) membrane for process water treatment from rubber industry. The results of SEM and XRD showed the presence of nano photocatalyst WO3, indicating the successfully embedded nano photocatalyst in PVDF membranes. The addition of nano photocatalyst materials has increased hydrophilicity by increasing the membrane's water uptake ability and decreasing the membrane's contact angle. The PVDF-WO3-2%wt membrane showed the highest flux value at 64.29 L m−2 h−1 with 96.40%, 85.61%, and 93.88% of chemical oxygen demand (COD), total dissolved solid (TDS), and ammonia rejection, respectively. The photocatalytic degradation effect of PVDF-WO3 is proven by a significant difference in the filtration results under vis-light irradiation. Membrane resulted in a better performance in photo-filtration (visible light) than in the dark condition. The PVDF-WO3-2%wt membrane also showed an excellent reusability after being used for 8 hours of the photo-filtration process. This research is promising to increase the use of photocatalytic membranes in rubber wastewater treatment into clean water.

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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.