Facile Prepared MOF-OH-PAN Nanofiber for Separation Co(II) from Waste Batteries

Cong Yin; Yang Luo; Ting Pan; Liting Ding; Chenghuang Wang; Guoyuan Yuan; Chongxiong Duan

doi:10.3390/polym16091239

Facile Prepared MOF-OH-PAN Nanofiber for Separation Co(II) from Waste Batteries

Polymers (Basel). 2024 Apr 29;16(9):1239. doi: 10.3390/polym16091239.

Authors

Cong Yin¹, Yang Luo², Ting Pan², Liting Ding², Chenghuang Wang², Guoyuan Yuan², Chongxiong Duan³

Affiliations

¹ Xi'an Research Institute of Hi-Tech, Xi'an 710025, China.
² College of Chemistry and Chemical Engineering, Chongqing University of Science and Technology, Chongqing 401331, China.
³ School of Materials Science and Energy Engineering, Foshan University, Foshan 528231, China.

Abstract

Recovering cobalt from waste batteries is crucial for resource recycling and environmental protection. Here, MOF-OH, a Zr-based MOF, was synthesized and merged into a polyacrylonitrile (PAN) matrix to create MOF-OH-PAN nanofibers (NFs). These NFs showed a high cobalt ion adsorption capacity of 33.1 mg/g, retaining over 90% of the capacity after six cycles. The adsorption mechanism involves Co(II) surface diffusion followed by strong bonding with functional groups. This technology enables efficient cobalt recovery from waste batteries, supporting reuse and reducing resource depletion and environmental pollution. The study provides insights into waste battery resource management, highlighting environmental and economic benefits and contributing to green resource recovery and circular economy initiatives.

Keywords: Co(II); MOFs; nanofiber; separation.

Grants and funding

This research received funding from the 2021QN-B003 Youth Fund of Xi’an Research Institute of Hi-Tech and the Guangdong Basic and Applied Basic Research Foundation (2023A1515011881).