利用 3,3′,4,4′-二苯甲酮四羧酸 (BTA) 通过紫外线接枝法制备用于稀土回收的新型吸附膜

IF 4.1 2区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Science Pub Date : 2024-11-09 DOI:10.1016/j.ces.2024.120889

Honghe Song , Haiyan Zhu , Rui Wang , Shumei Wen , Chenghu Yan , Wei Cong

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引用次数: 0

摘要

我们提出了一种简便的方法，利用 3,3′,4,4′-二苯甲酮四羧酸（BTA）作为接枝材料，通过紫外辐照技术制备对稀土离子具有优异选择性和稳定性的聚偏二氟乙烯（PVDF）膜。傅立叶变换红外光谱和 X 射线光电子能谱证实了 BTA 在膜表面的接枝。与 Na+、K+、Ca2+ 和 Mg2+ 相比，PVDF-g-BTA 膜对 Dy3+ 的选择因子分别为 140.57、114.16、74.23 和 86.25。PVDF-g-BTA 膜的吸附容量在经过五个吸附-解吸循环后仍保持在 80% 以上，接触角在 30 天的浸泡过程中保持稳定。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

A novel adsorptive membrane for rare earth recovery prepared by facile UV grafting using 3,3′, 4,4′-benzophenone tetracarboxylic acid (BTA)

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A novel adsorptive membrane for rare earth recovery prepared by facile UV grafting using 3,3′, 4,4′-benzophenone tetracarboxylic acid (BTA)

We propose a facile method for preparing polyvinylidene fluoride (PVDF) membranes with exceptional selectivity for rare earth ions and stability by UV irradiation technology using 3,3′, 4,4′-benzophenone tetracarboxylic acid (BTA) as the grafted materials. The grafting of BTA onto the membrane surface was confirmed through Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The selection factors of PVDF-g-BTA membranes for Dy³⁺ over Na⁺, K⁺, Ca²⁺, and Mg²⁺ were 140.57, 114.16, 74.23, and 86.25, respectively. The adsorption capacity of the PVDF-g-BTA membranes remained above 80 % following five adsorption–desorption cycles, and the contact angle remained stable throughout the 30 days of immersion.

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来源期刊

Chemical Engineering Science 工程技术-工程：化工

CiteScore

7.50

自引率

8.50%

发文量

1025

审稿时长

50 days

期刊介绍： Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline. Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.