PVDF/TiO2/GO油水分离膜的制备与表征

IF 1.9 4区材料科学 Q4 GREEN & SUSTAINABLE SCIENCE & TECHNOLOGY

Green Materials Pub Date : 2025-01-09 DOI:10.1680/jgrma.24.00071

Xinnan Zhou, Binjie Xin, Md All Amin Newton

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引用次数: 1

摘要

油水分离技术在工业生产、环境保护和能源生产中都有应用，对促进经济发展和保护水资源具有积极作用。聚偏氟乙烯（PVDF）纳米纤维膜以其优异的机械强度和耐腐蚀性在含油废水净化领域受到高度重视。本研究以聚偏氟乙烯（PVDF）、二氧化钛（TiO 2）、氧化石墨烯（GO）为原料，在电压15.5 kV、距离11 cm、纺丝液浓度约12.8%的条件下，采用静电纺丝法制备了纤维膜。实验证明，PVDF/ tio2 /1%氧化石墨烯纤维膜具有良好的疏水性和超亲油性。对制备的纤维膜进行多次循环利用，分别采用重力沉降法和直接法测定分离效率和渗透通量，实验结果表明，分离效率大于98%，渗透通量可达1700 L/ m2 /h。因此，该材料具有良好的油水分离效果。

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Preparation and characterizing of PVDF/TiO₂/GO membranes for oil–water separation

Oil–water separation has applications in industrial production, environmental protection, and energy production and plays a positive role in promoting economic development and protecting water resources. Polyvinylidene fluoride (PVDF) nanofiber membranes are highly regarded in the field of oily wastewater purification due to their excellent mechanical strength and corrosion resistance. In this study, fiber membranes were prepared by electrostatic spinning method using poly(vinylidene fluoride) (PVDF), titanium dioxide (TiO 2 ), and graphene oxide (GO) as raw materials (voltage: 15.5 kV, distance: 11 cm, and spinning solution concentration of about 12.8%). It was proved that the PVDF/TiO 2 /1% GO fiber membrane had good hydrophobicity and superoleophilicity. The prepared fiber membrane was recycled several times, and the separation efficiency and permeation flux were measured by gravity sedimentation and direct measurement, respectively, and the experimental results showed that the separation efficiency was more than 98%, and the permeation flux was up to 1700 L/m 2 /h. Therefore, the material has good oil–water separation effect.

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来源期刊

Green Materials Environmental Science-Pollution

CiteScore

3.50

自引率

15.80%

发文量

期刊介绍： The focus of Green Materials relates to polymers and materials, with an emphasis on reducing the use of hazardous substances in the design, manufacture and application of products.