@article{Liu2026, 
author = {Zixuan Liu and Lu Lu and Lijun Xu and Qing Huang and Wenyi Yuan},
title = {Preparation and photocatalytic application of glass fiber ball-loaded GO/ZIF-8/TiO2 photocatalytic material from e-waste},
year = {2026},
journal = {Circular Economy},
volume = {5},
number = {3},
pages = {100209},
keywords = {E-waste, Waste printed circuit boards, Photocatalysis, Metal-organic framework, Graphene oxide, Circular economy},
url = {https://www.sciopen.com/article/10.1016/j.cec.2026.100209},
doi = {10.1016/j.cec.2026.100209},
abstract = {With the increasing accumulation of waste printed circuit boards (WPCBs), the inadequate treatment of their non-metallic components has become a critical environmental concern. In this study, novel photocatalytic materials were synthesized by incorporating ZIF-8 with titanium dioxide (TiO2) and graphene oxide (GO) to form ternary GO/ZIF-8/TiO2 photocatalysts, which were subsequently immobilized onto glass fiber bundles (GfB) recovered from WPCBs. The structural and physicochemical properties of the composites were systematically characterized, and the results demonstrated that GfB/GO/ZIF-8/TiO2 exhibited superior photocatalytic performance for methylene blue (MB) degradation. More than 97% of MB was removed within 2 h of UV irradiation, with reaction rates 6.1 and 1.9 times higher than those of pristine TiO2 and ZIF-8, respectively. The enhanced activity can be ascribed to the synergistic effects of ZIF-8, GO, and TiO2. The waste-derived glass fiber bundles serve as a macroscopic support to immobilize the catalyst and facilitate practical handing and recovery. This study provides an effective “waste-treating-waste” strategy by valorizing non-metallic WPCB fractions into efficient photocatalysts, thereby advancing dye wastewater treatment and contributing to sustainable waste management and circular economy practices.}
}