@article{Gao2025, 
author = {Jingwa Gao and Chengying Bai and Ting Zheng and Guoxing Sun and Haize Jin and Xiaohuan Sun and Zerong Li and Paolo Colombo and Bin Wang},
title = {In-situ growth of MOFs on porous geopolymer spheres for continuous-flow PMS degradation of antibiotics},
year = {2025},
journal = {Journal of Advanced Ceramics},
volume = {14},
number = {8},
pages = {9221114},
keywords = {peroxymonosulfate (PMS), porous geopolymer, tetracycline antibiotics, fixed-bed reactor, copper metal–organic frameworks},
url = {https://www.sciopen.com/article/10.26599/JAC.2025.9221114},
doi = {10.26599/JAC.2025.9221114},
abstract = {A metakaolin/slag-based porous geopolymer (non-sintered ceramic) was prepared using a simple direct molding method, and the copper metal–organic frameworks (Cu-MOFs) were grown in situ via a solvothermal process. The Cu-MOFs/geopolymer composites achieve a ~98% degradation rate for tetracycline hydrochloride (TCH) within 10 min via peroxymonosulfate (PMS) activation at pH = 11. Radicals (·OH, SO4•−, and O2•−) and non-radicals (1O2) were identified as the dominant reactive oxygen species (ROS) participating in the catalytic process. Cu-MOFs/geopolymer acts as an electron transfer medium between TCH molecules and PMS molecules, enabling the efficient degradation of TCH. Furthermore, the catalytic system exhibited excellent cyclic stability, pH adaptability, and resistance to ionic interference, demonstrating superior performance in a flow-through fixed-bed reactor simulating real wastewater. The practical application of this system in wastewater treatment can be beneficial for reducing energy consumption, enhancing environmental sustainability, and lowering catalyst costs.}
}