Synthesis of Cu-BTC-modified polyvinylidene fluoride copolymers electrospun nanofibers for CO2 capture
Rana Ida Sugatri (a*), Muhamad Nasir (b), Aep Patah (a), Cynthia Linaya Radiman (a)

a) Chemistry, Faculty of Mathematics and Natural Sciences
Jl. Ganesa 10, Bandung 40132, Jawa Barat, Indonesia
*20520048[at]mahasiswa.itb.ac.id
b) National Research and Innovation Agency (BRIN)
Jl. Sangkuriang No. 10 Bandung 40135, Jawa Barat, Indonesia

Abstract

Copper benzene-1,3,5-tricarboxylate (Cu-BTC) is well known metal-organic framework (MOF) as CO2 capture material due to the open metal site which is attractive for gas binding. However, high sensitivity to water and moisture leads to a reduced capacity of CO2 adsorption. Therefore, incorporating Cu-BTC in hydrophobic fiber systems can improve their stability and CO2 adsorption capacity by providing pores of fibers that can be filled by gas. In this study, Cu-BTC was synthesized using microwave reflux and successfully dispersed in polyvinylidene fluoride copolymers (PVDF copolymers) solution and then spun using electrospinning. The composition of Cu-BTC (0.1, 1.0, and 5.0% (w/v)) in nanofiber composites influenced the morphology, hydrophobicity, porosity, mechanical properties, and CO2 adsorption ability. At higher concentration of Cu-BTC in the fibers system gave more beads on nanofiber. The beaded nanofiber gave impacts on decreasing of mechanical properties but increasing in CO2 gas adsorption.

Keywords: Cu-BTC, PVDF copolymers, nanofiber, electrospinning, CO2 adsorption

Topic: Environmental Chemistry and Engineering