Bi4Ti3O12/SnO2/聚偕胺肟/聚偏氟乙烯多孔膜高效压电催化萃取海水中铀

IF 13.3 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2025-05-30 DOI:10.1016/j.cej.2025.164333

Jiahui Zhu, Zhengpeng Xia, Qi Liu, Jing Yu, Rongrong Chen, Hongsen Zhang, Jingyuan Liu, Jun Wang

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引用次数: 0

摘要

压电催化因其经济、高效和环境可持续性等优点，在环境修复和重金属离子提取领域得到了广泛的研究。本文采用冷冻相转化技术制备了聚偏乙烯基（PVDF）复合多孔膜，用于海水中U（Ⅵ）的压电催化还原。加入聚偕胺肟（PAO）以提高铀酰离子的吸附选择性，加入Bi4Ti3O12/SnO2以提高压电催化活性。Bi4Ti3O12/SnO2/PAO/PVDF （BSPP）多孔膜表现出较高的压电催化活性，超声条件下铀去除率达到99.32%。采用PFM和KPFM对BSPP膜进行表征。有限元仿真进一步证明了BSPP良好的压电响应。此外，BSPP具有良好的抗菌性能，对三种常见细菌的抑制率超过80%。最后，开发了一种装置，可以更真实地模拟在自然环境下利用机械能从溶液中提取铀。本文系统地研究了BSPP膜的压电催化行为，为压电催化材料在海水提铀领域的应用提供了新的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Bi4Ti3O12/SnO2/Polyamidoxime/Polyvinylidene fluoride porous membrane for high efficiency piezo-catalytic extraction of uranium from seawater

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Bi4Ti3O12/SnO2/Polyamidoxime/Polyvinylidene fluoride porous membrane for high efficiency piezo-catalytic extraction of uranium from seawater

Piezo-catalytic has been extensively studied for environmental remediation and heavy metal ion extraction due to its cost-effectiveness and environmental sustainability. Herein, a Polyvinylidene (PVDF)-based composite porous membrane is fabricated using freezing phase inversion for the piezo-catalytic reduction of U(Ⅵ) in seawater. Polyamidoxime (PAO) is added to improve uranyl ion adsorption selectivity, and Bi₄Ti₃O₁₂/SnO₂ is incorporated to enhance piezo-catalytic activity. The Bi₄Ti₃O₁₂/SnO₂/PAO/PVDF (BSPP) porous membrane shows high piezo-catalytic activity, achieving 99.32% uranium removal ratio under ultrasonic conditions. PFM and KPFM are used to characterize BSPP membrane. Finite element simulation further shows the excellent piezoelectric response of BSPP. Additionally, BSPP exhibits great antibacterial properties with over 80% inhibition rates against three common bacteria. Finally, a device has been developed to more realistically simulate the extraction of uranium from solution using mechanical energy in a natural environment. This paper systematically studies the piezo-catalytic behavior of BSPP membranes, providing a novel approach for the application of piezo-catalytic materials in the field of uranium extraction from seawater.

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.