Enhanced performance of polyimide hybrid membranes for benzene separation by incorporating three-dimensional silver–graphene oxide

Dai, Shiqi; Jiang, Ye; Wang, Ting; Wu, Li–guang; Yu, Xinyi; Lin, Jun-ze; Shi, Shen-xuan-xiang

doi:10.1016/j.jcis.2016.06.009

Cited by 24 publications

(9 citation statements)

References 39 publications

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“…However, the high production of secondary products in both of these processes avoids them from being applied on an industrial scale, considering the need to carry out a subsequent treatment of the toxic sludge, which would make the process expensive [7,8]. Another technique that is been widely used in water treatment are the membrane separation processes (MSP) [5,[9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Surface modification of a polyethersulfone microfiltration membrane with graphene oxide for reactive dyes removal

Homem

Beluci

Amorim

et al. 2019

Applied Surface Science

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Polyethersulfone microfiltration membranes (mPES) were modified with polyethilenimine (PEI) and graphene oxide (GO) by layer-by-layer self-assembly method via electrostatic interaction using a pressurized filtration system. The high positively charge of PEI allowed it to be easily assembled on the polyethersulfone substrate, and also to receive the negative layer of GO. Several techniques were applied to characterize the modified membranes (i.e. ATR-FTIR, SEM, water angle contact and zeta potential), and proved that the modification was successfully achieved. The effect of PEI and GO concentrations in the modification was investigated, and the best performance of all membranes was achieved with a Blue Corazol (BC) dye rejection of 97.8% and a pure water permeability of 99.4 L m −2 h −1 bar −1 . The membrane also presented a flux recovery ratio of > 80% after being hydraulically cleaned for 30 min. Moreover, the membrane performance was evaluated in terms of rejection of BC dye in a real dye bath wastewater, and an excellent performance with a maximum rejection rate of 96% was observed. Therefore, the proposed study may provide an efficient alternative to feasible the use of microfiltration membranes, by modifying them, in order to improve its surface characteristics and its filtration capacity, aiming to apply it in the removal of dyes of textile industries wastewater.

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Section: Introductionmentioning

confidence: 99%

Surface modification of a polyethersulfone microfiltration membrane with graphene oxide for reactive dyes removal

Homem

Beluci

Amorim

et al. 2019

Applied Surface Science

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“…In this paper, the benzene-cyclohexane system is selected for in-depth study by the improved distillation-membrane separation integrated process comprehensive solution strategy. The waterborne polyurethane membrane and the GO-AgNPs/PI hybrid membrane (GO-AgNPs/PI membrane) [22,23] are used to study the system. Among the two membranes, the former belongs to the category of organic membranes and the latter to the category of hybrid membranes.…”

Section: Calculation and Analysis Of Industrial Casesmentioning

confidence: 99%

Optimization of a New Integrated Separation Process for Azeotropes Based on Genetic Programming

Wang

Ding

et al. 2021

Chem Eng & Technol

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A solution strategy of a distillation‐membrane separation process based on genetic programming algorithm (GP) is proposed. It can automatically match diverse membrane materials according to different azeotropic systems and generate various integrated processes. For the membrane, which is still in the experimental research stage, a theoretical prediction method of membrane cost is recommended. Taking the benzene‐cyclohexane system as an example, a GO‐AgNPs/PI membrane and polyurethane membrane were matched, respectively, and the optimal integrated processes can be obtained. The GP strategy provides a strong guidance for the comprehensive design and optimization of distillation‐membrane separation by using various new membranes.

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“…The pore-filling structure efficiently reduced the membrane swelling and the increased affinity of the membrane to aromatic compounds due to the molecular-level dispersion of GO in PVA led to improved performance in the PV separation of toluene-n-heptane mixtures. For separation of benzene from its cyclohexane mixtures a NCM has been fabricated by incorporating three-dimensional silver-GO into polyimide hybrid membranes [ 271 ]. The hybrid polyimide membrane showed highest SF reached to 35 at 15 mass% of Ag-GO loadings.…”

Section: Membranes For Pv Applicationsmentioning

confidence: 99%

Polymeric Nanocomposite Membranes for Next Generation Pervaporation Process: Strategies, Challenges and Future Prospects

Roy

Singha²

2017

Membranes

101

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Pervaporation (PV) has been considered as one of the most active and promising areas in membrane technologies in separating close boiling or azeotropic liquid mixtures, heat sensitive biomaterials, water or organics from its mixtures that are indispensable constituents for various important chemical and bio-separations. In the PV process, the membrane plays the most pivotal role and is of paramount importance in governing the overall efficiency. This article evaluates and collaborates the current research towards the development of next generation nanomaterials (NMs) and embedded polymeric membranes with regard to its synthesis, fabrication and application strategies, challenges and future prospects.

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Enhanced performance of polyimide hybrid membranes for benzene separation by incorporating three-dimensional silver–graphene oxide

Cited by 24 publications

References 39 publications

Surface modification of a polyethersulfone microfiltration membrane with graphene oxide for reactive dyes removal

Surface modification of a polyethersulfone microfiltration membrane with graphene oxide for reactive dyes removal

Optimization of a New Integrated Separation Process for Azeotropes Based on Genetic Programming

Polymeric Nanocomposite Membranes for Next Generation Pervaporation Process: Strategies, Challenges and Future Prospects

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