Diffusion dialysis membranes with semi-interpenetrating network for acid recovery

Cheng, Congliang; Yang, Zhengjin; He, Yubin; Mondal, Abhishek N.; Bakangura, Erigene

doi:10.1016/j.memsci.2015.07.032

Cited by 65 publications

(32 citation statements)

References 30 publications

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“…The substitution ratio should not be exceeded then 1:1 for optimum reaction condition. Although TS and Eb values of MDPA-AEMs decreased with the quantitative increase of MDPA and the same trend was observed in the previous published study [47], but still these values are higher than previous studies on ion exchange membranes [50,51]. Hence, the MDPA-AEMs possess excellent mechanical stability for commercial application.…”

Section: Mechanical Behaviorsupporting

confidence: 82%

Preparation and performance evaluation of novel alkaline stable anion exchange membranes

Irfan

Bakangura

Afsar

et al. 2017

Journal of Power Sources

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Section: Mechanical Behaviorsupporting

confidence: 82%

Preparation and performance evaluation of novel alkaline stable anion exchange membranes

Irfan

Bakangura

Afsar

et al. 2017

Journal of Power Sources

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“…The IEC and water uptake are two important intrinsic properties of anion exchange membrane. At a certain amount of water uptake, the high IEC is very crucial for the improvement of ions transport and membrane 29 The test results at 25°C of the semi-IPN membranes were shown in Figure 7. Similar trends were observed for IEC and membrane resistance as a function of PECH content.…”

Section: Resultsmentioning

confidence: 99%

“…The sIPN polymers usually show good compatibility, high mechanical strength as well as good electrochemical stability. 28 Cheng et al 29 prepared the AEM based on semi-IPN structure for acid recovery via diffusion dialysis. Wang et al 26 proposed a route to fabricate an AEM based on quaternized chitosan (QCS) and polystyrene (PS).…”

Section: Introductionmentioning

confidence: 99%

Novel Composite Anion Exchange Membranes Based on Quaternized Polyepichlorohydrin for Electromembrane Application

Han

Pan

Yang

et al. 2016

Ind. Eng. Chem. Res.

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A series of semi-interpenetrating polymer network (sIPN) composite anion exchange membranes were fabricated depending on immobilized linear PVDF and cross-linked polyepichlorohydrin (PECH), 1,4-diazabicyclo[2.2.2]octane, (DABCO) network through in situ synthetic pathway. A cyclic diamine (DABCO) was used as cross-linking agent and simultaneously improved the ion-exchange capacity by amination. Scanning electron microscopy (SEM) indicated that the composite membranes exhibited a dense and homogeneous structure. Successful formation of PECH-DABCO copolymer within the sIPN membranes was also confirmed by Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS). The PVDF percentage and inherent properties of membranes such as ion exchange capacity (IEC), water uptake (W R ), thermal stability, mechanical property, and area resistance were investigated to evaluate their applicability in electrodialysis (ED). The experimental results showed that the composite membrane maintained a good perspective for ED application.

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“…The dimensional stability was assessed by the linear expansion ratio (LER). The membrane was cut into a piece of 10 cm 10 cm, which is favorable for comparison with the relevant literature [22,23]. The procedure was the same as that for the water uptake determination and LER is calculated as:…”

Section: Membrane Characterizationmentioning

confidence: 99%

“…The absorption band at 963 cm -1 is assigned to the QA group, and the bands at 1053 and 1094 cm -1 are assigned to Si-O-C and Si-O-Si networks [22][23][24]. Si-O-Si(C) groups come from sol-gel reaction between PVA-g-PTMA and TEOS, and part of the -OH groups of PVA-g-PTMA can take part in the sol-gel reaction [25].…”

Section: Ftir Analysis Of Polyvinyl Alcohol and Membrane Amentioning

confidence: 99%

Branched Polyvinyl Alcohol Hybrid Membrane for Acid Recovery via Diffusion Dialysis

Cheng

et al. 2019

Chem Eng & Technol

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A branched polymer was prepared by grafting allyltrimethylammonium chloride onto polyvinyl alcohol (PVA) via free-radical polymerization. Afterwards, a series of hybrid membranes were prepared by sol-gel cross-linking between quaternary ammonium-PVA and tetraethoxysilane. The obtained membranes were characterized in terms of infrared spectroscopy, ion exchange capacity, water uptake, linear expansion ratio, and acid resistance. The thermal properties of the membranes were investigated as well. The diffusion dialysis performances of the membranes were tested by using a simulated feed solution containing HCl and FeCl 2 . The diffusion dialysis coefficients and the separation factors were much better than those of the commercial DF-120 membrane.

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Diffusion dialysis membranes with semi-interpenetrating network for acid recovery

Cited by 65 publications

References 30 publications

Preparation and performance evaluation of novel alkaline stable anion exchange membranes

Preparation and performance evaluation of novel alkaline stable anion exchange membranes

Novel Composite Anion Exchange Membranes Based on Quaternized Polyepichlorohydrin for Electromembrane Application

Branched Polyvinyl Alcohol Hybrid Membrane for Acid Recovery via Diffusion Dialysis

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