利用 TiO2-AgBr-Ag-SBA-15 纳米填料制备具有优异渗透性和防污性能的新型聚醚砜(PES)光催化膜,用于去除头孢克肟

IF 2.2 4区 化学 Q3 CHEMISTRY, MULTIDISCIPLINARY Journal of the Iranian Chemical Society Pub Date : 2024-05-24 DOI:10.1007/s13738-024-03031-9
Shahnaz Nayeri, Jalal Basiri Parsa
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引用次数: 0

摘要

本研究旨在通过使用 TiO2-AgBr-Ag-SBA-15 改性聚醚砜(PES)聚合物膜,提高其渗透性和防污性能。采用水热法制造二氧化硅纳米颗粒(SBA-15),其中包括使用四乙基正硅酸盐作为前驱体和共聚物 Pluronic P123(作为模具和溶剂排出后的结构保持剂)。然后,在 TiO2-AgBr-Ag 的制备溶液中加入 SBA-15 纳米粒子,最后在浇铸溶液中加入掺杂纳米粒子(TiO2-AgBr-Ag-SBA-15),使最终膜的重量百分比分别达到 0.4、0.6、0.8 和 1。使用 FESEM、FT-IR、XRD、XPS 和 EDX 对纳米颗粒进行了表征。同时,利用 FESEM、FT-IR、CA、AFM 和膜性能测试研究了膜的特性。混合膜的表面疏水性较低,因此透水性较好。此外,膜的防污性能也得到了显著改善,从而在不影响膜去除有害物质能力的情况下大大提高了透水性。在 3.5 巴压力下,0.8 wt% PES/TiO2-AgBr-Ag-SBA-15 膜的纯水通量是原始膜的两倍。1 wt% PES/TiO2-AgBr-Ag-SBA-15 膜的通量回收率可达 90%,防污性能优异。
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Fabrication of novel polyethersulfone (PES) photocatalytic membranes with excellent permeability and antifouling properties using TiO2–AgBr–Ag–SBA-15 nanofillers for cefixime removal

This study aimed to enhance the permeability and antifouling properties of the polymer membrane of polyethersulfone (PES) through the modification with TiO2–AgBr–Ag–SBA-15. The hydrothermal process is used to create silica nanoparticles (SBA-15), which involved the use of tetraethylorthosilicate as a precursor and a copolymer Pluronic P123 (as a mold and the structure maintainer after solvent exiting). Then, SBA-15 nanoparticles are added to the preparation solution of TiO2–AgBr–Ag, resulting doping nanoparticles (TiO2–AgBr–Ag–SBA-15) were incorporated into the casting solution to achieve weight percentages of 0.4, 0.6, 0.8 and 1 in the final membranes. The nanoparticles were characterized using FESEM, FT-IR, XRD, XPS and EDX. Meanwhile, the membrane properties were studied using FESEM, FT-IR, CA, AFM and membrane performance tests. The hybrid membranes exhibited a less hydrophobic surface, which consequently resulted in water permeability. Moreover, the antifouling properties were notably improved, resulting in a considerable improvement in permeability without compromising the membrane's ability to remove unwanted substances. At 3.5 bar pressure, the pure water flux of the 0.8 wt% PES/TiO2–AgBr–Ag–SBA-15 membrane was two times higher than that of the pristine membrane. Flux recovery rate of 1 wt% PES/TiO2–AgBr–Ag–SBA-15 membrane can reach 90%, and the antifouling performance is excellent.

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来源期刊
CiteScore
4.40
自引率
8.30%
发文量
230
审稿时长
5.6 months
期刊介绍: JICS is an international journal covering general fields of chemistry. JICS welcomes high quality original papers in English dealing with experimental, theoretical and applied research related to all branches of chemistry. These include the fields of analytical, inorganic, organic and physical chemistry as well as the chemical biology area. Review articles discussing specific areas of chemistry of current chemical or biological importance are also published. JICS ensures visibility of your research results to a worldwide audience in science. You are kindly invited to submit your manuscript to the Editor-in-Chief or Regional Editor. All contributions in the form of original papers or short communications will be peer reviewed and published free of charge after acceptance.
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