Cellulose acetate butyrate graphene oxide nanocomposite membrane: Fabrication, characterization, and performance

IF 1 4区工程技术 Q4 CHEMISTRY, APPLIED

Chemical Industry & Chemical Engineering Quarterly Pub Date : 2021-01-01 DOI:10.2298/ciceq200128022a

Majed M. Alghamdi, A. El-Zahhar

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引用次数: 2

Abstract

In this study, the effects of graphene oxide (GO) nanosheets on the physicochemical properties and performances of cellulose acetate butyrate (CAB) membranes were investigated. Nanocomposite membranes were fabricated using CAB and a small amount of GO in the range of 0 to 0.07 wt.%, using a conventional phase-inversion method. Membranes were characterized by different methods and their performances were tested using a dead-end filtration system. Compared with pristine CAB membrane, experimental results demonstrated an improvement in features such as hydrophilicity, permeability, salt rejection, antifouling, and stability. The results proved an increase in the porosity and pore sizes of membranes with GO addition. Furthermore, the membrane containing 0.07 wt.% of GO exhibited a low contact angle of 37??and a dramatic improvement in water flux of about 450% (from 2 to 11 L/(m2 h)). Moreover, it demonstrated a salt rejection of 39% for NaCl and 87% for Na2SO4, corresponding to improvements of about 144 and 93%, respectively. Furthermore, the results revealed a higher antifouling property with an 86% improvement in flux recovery and higher stability in terms of performance and thermal properties compared to CAB.

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醋酸丁酸纤维素氧化石墨烯纳米复合膜:制备、表征和性能

在本研究中，研究了氧化石墨烯(GO)纳米片对醋酸丁酸纤维素(CAB)膜理化性质和性能的影响。采用常规的反相法，在0 ~ 0.07 wt.%的氧化石墨烯中加入CAB和少量氧化石墨烯，制备了纳米复合膜。采用不同的方法对膜进行了表征，并采用终端过滤系统对膜的性能进行了测试。实验结果表明，与原始CAB膜相比，该膜在亲水性、渗透性、防盐性、防污性和稳定性等方面均有改善。结果表明，氧化石墨烯的加入增加了膜的孔隙率和孔径。此外，含有0.07 wt.%氧化石墨烯的膜的接触角较低，为37?水通量显著提高约450%(从2升/(m2 h)到11升/(m2 h))。对NaCl和Na2SO4的阻盐率分别为39%和87%，分别提高了约144和93%。此外，结果显示，与CAB相比，其防污性能更高，通量回收率提高86%，性能和热性能方面的稳定性更高。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Industry & Chemical Engineering Quarterly CHEMISTRY, APPLIED-ENGINEERING, CHEMICAL

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

3.3 months

期刊介绍： The Journal invites contributions to the following two main areas: • Applied Chemistry dealing with the application of basic chemical sciences to industry • Chemical Engineering dealing with the chemical and biochemical conversion of raw materials into different products as well as the design and operation of plants and equipment. The Journal welcomes contributions focused on: Chemical and Biochemical Engineering [...] Process Systems Engineering[...] Environmental Chemical and Process Engineering[...] Materials Synthesis and Processing[...] Food and Bioproducts Processing[...] Process Technology[...]