TY  - JOUR
AU  - Zhang, Ming
AU  - Tian, Tian
AU  - Zhao, Chenyu
AU  - Qiao, Weichuan
AU  - Pang, Huan
PY  - 2026
TI  - Ingeniously combines phase transfer process and triazole MOF expansive action to prepare porous carbon beads for ozone oxidation: Preparation process and synergistic mechanism
JO  - Nano Research
SN  - 1998-0124
SP  - 94908213
VL  - 19
IS  - 3
AB  - The removal of persistent organic pollutants through catalytic ozonation remains a significant challenge, particularly in developing catalysts that combine high efficiency with robust stability. To address this, we present an innovative strategy for synthesizing a series of energetic metal-organic framework (EMOF)-derived porous carbon spheres doped with various transition metals (denoted as EMS, EMFeS, EMCuS, EMNiS, and EMMnS). This approach combines a phase transfer pathway with controlled expansion of energy-containing MOFs during high-temperature pyrolysis, resulting in hierarchically porous structures. When applied to tetracycline (TTCH) degradation, EMFeS exhibited remarkable catalytic activity with ozone and the reaction rate constant is 0.131 min−1, which is superior to individual ozone system (0.088 min−1). The superior catalytic performance is attributed to two aspects: (i) The three-dimensional hierarchical porous architecture facilitates efficient mass transfer and improves reaction kinetics, while (ii) the well-dispersed metal active sites (including Mn, Fe, Cu, and Ni) significantly enhance ozonolysis efficiency. Comprehensive mechanistic studies through quenching experiments and LC-MS analysis elucidated the degradation pathways, while continuous flow catalytic tests and biotoxicity assessments confirmed the practical applicability of these catalysts. This work not only advances the development of high-performance ozonation catalysts but also provides new insights into the design of water treatment materials.
UR  - https://doi.org/10.26599/NR.2025.94908213
DO  - 10.26599/NR.2025.94908213