Zeolitic Imidazole Framework/Graphene Oxide Hybrid Functionalized Poly(lactic acid) Electrospun Membranes: A Promising Environmentally Friendly Water Treatment Material

Xiu Dai; Xu Li; Mi Zhang; Jiong Xie; Xinlong Wang

doi:10.1021/acsomega.8b00792

Zeolitic Imidazole Framework/Graphene Oxide Hybrid Functionalized Poly(lactic acid) Electrospun Membranes: A Promising Environmentally Friendly Water Treatment Material

ACS Omega. 2018 Jun 25;3(6):6860-6866. doi: 10.1021/acsomega.8b00792. eCollection 2018 Jun 30.

Authors

Xiu Dai¹, Xu Li¹, Mi Zhang¹, Jiong Xie¹, Xinlong Wang¹

Affiliation

¹ School of Chemical Engineering, Nanjing University of Science & Technology, Nanjing 210094, China.

Abstract

Poly(lactic acid) (PLA) electrospun membranes immobilized with Zeolitic imidazole framework/graphene oxide hybrid (ZIF-8@GO) are fabricated via electrospinning. At first, ZIF-8@GO is synthesized by the in situ growth method. The UV-visible light (UV-vis) result demonstrates that ZIF-8@GO has a narrower band gap than ZIF-8. The performance of the obtained composite membrane is investigated by scanning electron microscope, Fourier transform IR spectroscopy, tensile test, water contact angle, and methylene blue (MB) removal test. The results demonstrate that the degradable PLA/ZIF-8@GO electrospun membrane shows enhanced tensile strength than neat PLA. The composite membrane also shows great MB removal ability by adsorption and photocatalytic degradation. The MB removal efficiency could reach over 90% at very low ZIF-8@GO concentration (0.06 mg/mL).