Graphene-grafted bimetallic MOF membranes for hazardous & toxic contaminants treatment

被引：3

作者：

Rehman A. ^{[1
]}

Jahan Z. ^{[1
]}

Khan Niazi M.B. ^{[1
]}

Noor T. ^{[1
]}

Javed F. ^{[2
]}

Othman S.I. ^{[3
]}

Abukhadra M.R. ^{[4
]}

Nawaz A. ^{[5
]}

机构：

[1] Department of Chemical Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad

[2] Department of Materials Engineering, School of Chemical and Materials Engineering, National University of Sciences and Technology, Islamabad

[3] Department of Biology, College of Science, Princess Nourah Bint Abdulrahman University, P.O. BOX 84428, Riyadh

[4] Materials Technologies and Their Applications Lab, Geology Department, Faculty of Science, Beni-Suef University, Beni-Suef City

[5] School of Chemical Engineering, Yeungnam University, Gyeongsan

来源：

Chemosphere | 2023年 / 340卷

关键词：

Graphene-grafted bimetallic MOFs; Hydrophilicity; Mechanical strength; Membrane; Toxic contaminants;

D O I：

10.1016/j.chemosphere.2023.139721

中图分类号：

学科分类号：

摘要：

Development of membrane with improved carbon dioxide (CO2) gas separation capability is a significant challenge. However, the fabrication of membrane that efficiently separate and purification CO2-containing gases has been the focus of global attention. Cellulose Acetate (CA) has robust reinforcing characteristics when incorporated within a suitable polymer matrix. This work focus on the synthesis of novel mixed matrix membranes (MMMs) by introducing Graphene-grafted bimetallic MOFs in Cellulose Acetate polymer. The graphene-grafted bimetallic MOF (GG-BM MOFs) was prepared by a hydrothermal technique. Whereas, the solution casting approach used to fabricate membranes. The 1–5 wt% of GG-BM MOFs incorporated into the CA matrix. The mechanical, hydrophilicity and adsorption characteristics of fabricated MMMs were investigated. The crystallinity of MMM enhanced after the addition of GG-BM MOFs. In addition, the mechanical characteristics of MMMs were improved with the incorporation of GG-BM MOFs inside the polymer matrix. Maximum stress and strain was obtained for 2 wt% MMM (36.4 N/mm2 and 11% respectively). The CO2 adsorption performance was evaluated at 10 bar and 45 °C. The FTIR results represent insignificant bond shifting with the addition GG-BM MOFs at these conditions. The overall results showed that MMMs containing 2 wt% GG-BM MOFs have good adsorption properties for CO2 i.e 3.15 wt% of CO2. The MMMs have shown a decrease in the mechanical properties and CO2 adsorption at the higher GG-BM MOFs loading due to the presence of agglomeration which was confirmed through SEM. Thus, the addition of GG-BM MOFs in the CA matrix positively altered the physicochemical characteristics of the resulting MMMs, which could assist them in achieving remarkable CO2 adsorption at 2 wt%. © 2023 Elsevier Ltd

引用

共 42 条

[1]

Akbarzadeh E., Shockravi A., Vatanpour V., High performance compatible thiazole-based polymeric blend cellulose acetate membrane as selective CO2 absorbent and molecular sieve, Carbohydr. Polym., 252, (2021)

[2]

Azhar O., Jahan Z., Sher F., Niazi M.B.K., Kakar S.J., Shahid M., Cellulose acetate-polyvinyl alcohol blend hemodialysis membranes integrated with dialysis performance and high biocompatibility, Mater. Sci. Eng. C, 126, (2021)

[3]

Azizi A., Feijani E.A., Ghorbani Z., Tavasoli A., Fabrication and characterization of highly efficient three component CuBTC/graphene oxide/PSF membrane for gas separation application, Int. J. Hydrogen Energy, 46, pp. 2244-2254, (2021)

[4]

Cadiau A., Adil K., Bhatt P.M., Belmabkhout Y., Eddaoudi M., A metal-organic framework–based splitter for separating propylene from propane, Science, 353, pp. 137-140, (2016)

[5]

Cao X., Wang Z., Qiao Z., Zhao S., Wang J., Penetrated COF channels: amino environment and suitable size for CO2 preferential adsorption and transport in mixed matrix membranes, ACS Appl. Mater. Interfaces, 11, pp. 5306-5315, (2019)

[6]

Chaudhary M., Maiti A., Fe–Al–Mn@ chitosan based metal oxides blended cellulose acetate mixed matrix membrane for fluoride decontamination from water: removal mechanisms and antibacterial behavior, J. Membr. Sci., 611, (2020)

[7]

Chen W., Zhang Z., Hou L., Yang C., Shen H., Yang K., Wang Z., Metal-organic framework MOF-801/PIM-1 mixed-matrix membranes for enhanced CO2/N2 separation performance, Sep. Purif. Technol., 250, (2020)

[8]

Dechnik J., Sumby C.J., Janiak C., Enhancing mixed-matrix membrane performance with metal–organic framework additives, Cryst. Growth Des., 17, pp. 4467-4488, (2017)

[9]

Fan L., Kang Z., Shen Y., Wang S., Zhao H., Sun H., Hu X., Sun H., Wang R., Sun D., Mixed matrix membranes based on metal–organic frameworks with tunable pore size for CO2 separation, Cryst. Growth Des., 18, pp. 4365-4371, (2018)

[10]

Gotthardt M.A., Schoch R., Wolf S., Bauer M., Kleist W., Synthesis and characterization of bimetallic metal–organic framework Cu–Ru-BTC with HKUST-1 structure, Dalton Trans., 44, pp. 2052-2056, (2015)

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