PVDF/CuO–VS4 Dual-Layer Hollow Fiber Photocatalytic Membrane for Bisphenol A Removal with Energy Storage Capability

IF 2.9 4区工程技术 Q2 CHEMISTRY, MULTIDISCIPLINARY

Korean Journal of Chemical Engineering Pub Date : 2025-03-17 DOI:10.1007/s11814-025-00430-3

Hazirah Syahirah Zakria, Mohd Hafiz Dzarfan Othman, Suhaila Borhamdin, Nurul Jannah Ismail, Mukhlis A. Rahman, Juhana Jaafar, Mohd Hafiz Puteh, Norbaya Hashim, Nirmala Devi AP Kerisnan, Nasehir Khan E. M. Yahaya, Alias Idris, Tonni Agustiono Kurniawan

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引用次数: 0

Abstract

Bisphenol A (BPA) is toxic and its outflow into the water bodies raised concern, and suitable water treatment is needed. Photocatalysis is a promising method nowadays to move towards green technology. The novel photocatalytic dual-layer hollow-fiber membrane (DLHF) combines copper (II) oxide–vanadium tetrasulfide (CuO–VS₄) with a polyvinylidene fluoride (PVDF) membrane for efficient BPA removal both day and night. CuO and CuO–VS₄ were synthesized using sol–gel and hydrothermal methods, respectively, with varying hydrothermal times. PVDF/CuO–VS₄ DLHF photocatalytic membrane was fabricated using co-extrusion method by varying the ratio of CuO–VS₄. Powdered catalyst and membranes were characterized using FESEM-EDX, XRD and AFM. CuO was synthesized at room temperature, while CuO–VS₄ synthesized at 12 h hydrothermal time was chosen to be deposited into PVDF membrane matrix. The 0.25 PVDF/CuO–VS₄ DLHF shows a uniform CuO–VS₄ distribution, achieving 70.24% photodegradation and 73.19% BPA rejection, with 74.05% regeneration efficiency after three cycles. Energy storage capability shows 60.0% of BPA successfully rejected after 120 min of analysis, and thus, PVDF/CuO–VS₄ DLHF is a preferential 3-in-1 function photocatalytic membrane for BPA degradation and rejection as well as a potential energy storage material for wastewater treatment with or without light.

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具有储能功能的用于去除双酚 A 的 PVDF/CuO-VS4 双层中空纤维光催化膜

双酚A （BPA）是有毒物质，其流入水体引起了人们的关注，需要适当的水处理。光催化是一种很有前途的绿色技术。新型光催化双层中空纤维膜（DLHF）将氧化铜(II) -四硫化钒（CuO-VS4）与聚偏氟乙烯（PVDF）膜结合在一起，可在白天和夜间高效去除BPA。采用溶胶-凝胶法和水热法分别合成了CuO和CuO - vs4，水热时间不同。通过改变CuO-VS4的比例，采用共挤出法制备了PVDF/ CuO-VS4 DLHF光催化膜。采用FESEM-EDX、XRD和AFM对粉末催化剂和膜进行了表征。在室温下合成CuO，在水热时间12 h合成CuO - vs4，将其沉积在PVDF膜基质中。0.25 PVDF/ CuO-VS4 DLHF的CuO-VS4分布均匀，3次循环后的光降解率为70.24%，BPA去除率为73.19%，再生效率为74.05%。实验结果表明，PVDF/ CuO-VS4 DLHF是一种具有良好的3合1功能的光催化膜，是一种有光或无光处理废水的潜在储能材料。

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来源期刊

Korean Journal of Chemical Engineering 工程技术-工程：化工

CiteScore

4.60

自引率

11.10%

发文量

310

审稿时长

4.7 months

期刊介绍： The Korean Journal of Chemical Engineering provides a global forum for the dissemination of research in chemical engineering. The Journal publishes significant research results obtained in the Asia-Pacific region, and simultaneously introduces recent technical progress made in other areas of the world to this region. Submitted research papers must be of potential industrial significance and specifically concerned with chemical engineering. The editors will give preference to papers having a clearly stated practical scope and applicability in the areas of chemical engineering, and to those where new theoretical concepts are supported by new experimental details. The Journal also regularly publishes featured reviews on emerging and industrially important subjects of chemical engineering as well as selected papers presented at international conferences on the subjects.