TY - JOUR

T1 - Novel pervaporation mixed matrix membranes based on polyphenylene isophtalamide modified by metal–organic framework UiO-66(NH2)-EDTA for highly efficient methanol isolation

AU - Penkova, Anastasia V.

AU - Kuzminova, Anna I.

AU - Dmitrenko, Mariia E.

AU - Surkova, Victoria A.

AU - Liamin, Vladislav P.

AU - Markelov, Denis A.

AU - Komolkin, Andrei V.

AU - Poloneeva, Daria Y.

AU - Laptenkova, Anastasia V.

AU - Selyutin, Artem A.

AU - Mazur, Anton S.

AU - Emeline, Alexei V.

AU - Thomas, Sabu

AU - Ermakov, Sergey S.

N1 - Funding Information: This work was supported by Russian Science Foundation [grant number 17-73-20060]. The experimental work was facilitated by equipment from the Interdisciplinary Resource Centre for Nanotechnology, Magnetic Resonance Research Centre, Thermogravimetric and Calorimetric Research Centre, Centre for X-ray Diffraction Studies, Chemical Analysis and Materials Research Centre, Nanophotonics Centre, Cryogenic department, Centre for Diagnostics of Functional Materials for Medicine, Pharmacology and Nanoelectronics, and Centre for Geo-Environmental Research and Modelling at St. Petersburg State University. The simulations have been performed by using the Computer Resources Center of Saint Petersburg State University. The authors gratefully acknowledge A.V. Bildyukevich and T.V. Plisko for provided membrane samples from regenerated cellulose. Synthesis of MOF samples was performed in the laboratory ?Photoactive nanocomposite materials? supported by SPbU. Funding Information: This work was supported by Russian Science Foundation [grant number 17-73-20060 ]. The experimental work was facilitated by equipment from the Interdisciplinary Resource Centre for Nanotechnology, Magnetic Resonance Research Centre, Thermogravimetric and Calorimetric Research Centre, Centre for X-ray Diffraction Studies, Chemical Analysis and Materials Research Centre, Nanophotonics Centre, Cryogenic department, Centre for Diagnostics of Functional Materials for Medicine, Pharmacology and Nanoelectronics, and Centre for Geo-Environmental Research and Modelling at St. Petersburg State University. The simulations have been performed by using the Computer Resources Center of Saint Petersburg State University. The authors gratefully acknowledge A.V. Bildyukevich and T.V. Plisko for provided membrane samples from regenerated cellulose. Synthesis of MOF samples was performed in the laboratory “Photoactive nanocomposite materials” supported by SPbU.

PY - 2021/5/15

Y1 - 2021/5/15

N2 - As a rule, the polymeric membranes have low permeability in separation of low molecular weight components. In spite of this fact, the membrane processes have significant advantages compare with conventional technologies, in particular, low energy consumption and environmental friendliness. To improve transport properties of the polymer membrane their modification should be carried out. In the present work, the development of highly methanol-permeable pervaporation membranes based on poly-m-phenylene isophthalamide (PA) is achieved by two strategies: (i) modification of PA by novel synthesized and characterized highly stable metal–organic framework UiO-66(NH2)-EDTA particles and (ii) development of supported membranes with thin selective layer on the regenerated cellulose substrate. First time the composite structure has been simulated: atomistic molecular dynamics simulations demonstrate the partial penetration of polymer inside the modifier and confirms the nature of the interaction between polymer and modifier assessed by spectroscopic methods. The optimal characteristics in respect of industrial use are obtained for supported PA/UiO-66(NH2)-EDTA (15%) membrane: 1.55 kg/(m2h) permeation flux and 93.1 wt% methanol in the permeate for the separation of azeotropic methanol/toluene mixture.

AB - As a rule, the polymeric membranes have low permeability in separation of low molecular weight components. In spite of this fact, the membrane processes have significant advantages compare with conventional technologies, in particular, low energy consumption and environmental friendliness. To improve transport properties of the polymer membrane their modification should be carried out. In the present work, the development of highly methanol-permeable pervaporation membranes based on poly-m-phenylene isophthalamide (PA) is achieved by two strategies: (i) modification of PA by novel synthesized and characterized highly stable metal–organic framework UiO-66(NH2)-EDTA particles and (ii) development of supported membranes with thin selective layer on the regenerated cellulose substrate. First time the composite structure has been simulated: atomistic molecular dynamics simulations demonstrate the partial penetration of polymer inside the modifier and confirms the nature of the interaction between polymer and modifier assessed by spectroscopic methods. The optimal characteristics in respect of industrial use are obtained for supported PA/UiO-66(NH2)-EDTA (15%) membrane: 1.55 kg/(m2h) permeation flux and 93.1 wt% methanol in the permeate for the separation of azeotropic methanol/toluene mixture.

KW - Membranes

KW - Methanol

KW - Pervaporation

KW - Poly-m-phenylene isophthalamide

KW - UiO-66(NH2)-EDTA

UR - http://www.scopus.com/inward/record.url?scp=85100044597&partnerID=8YFLogxK

U2 - 10.1016/j.seppur.2021.118370

DO - 10.1016/j.seppur.2021.118370

M3 - Article

AN - SCOPUS:85100044597

VL - 263

JO - Separation and Purification Technology

JF - Separation and Purification Technology

SN - 1383-5866

M1 - 118370

ER -