Ai Shubo, Zhuo Shaoting, Wang Bingqing, Yang Da-Peng
College of Materials Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Key Laboratory of Chemical Materials and Green Nanotechnology, Key Laboratory of Fujian Provincial Higher Education, College of Chemical Engineering and Materials Science, Quanzhou Normal University, Quanzhou 362000, China.
ACS Omega. 2025 Jun 6;10(23):24382-24395. doi: 10.1021/acsomega.5c00541. eCollection 2025 Jun 17.
The widespread use of tetracycline hydrochloride (TCH) in treating bacterial diseases in humans and animals has resulted in significant environmental contamination, posing serious risks to water bodies and ecosystem functions. Herein, a novel CuFeO/C/SiO nanocomposite derived from agricultural waste rice husk was developed to address the urgent need for effective TCH degradation. Comprehensive characterization of the synthesized materials conclusively demonstrates the successful incorporation of CuFeO nanoparticles within the C/SiO matrix. The CuFeO/C/SiO nanocomposite exhibits significantly superior photocatalytic activity for TCH degradation compared to that of both C/SiO and CuFeO individually, revealing a synergistic effect in promoting TCH degradation. The optimal performance was observed with a 3.0 wt % CuFeO/C/SiO nanocomposite in the presence of 0.15 mM peroxymonosulfate (PMS), achieving 98.41% TCH removal within 15 min. The quenching experiments and electron paramagnetic resonance (EPR) analyses revealed that TCH degradation occurred through the action of sulfate radicals (SO ), hydroxyl radicals (•OH), superoxide (O ), and singlet oxygen (O). Our study demonstrates that the synergistic effect between CuFeO and C/SiO enhanced material stability and promoted catalyst-PMS bonding, thereby improving catalytic performance. These results suggest that CuFeO/C/SiO-activated PMS represents a promising technology for efficient TCH degradation in environmental remediation efforts.
盐酸四环素（TCH）在人类和动物细菌性疾病治疗中的广泛使用已导致严重的环境污染，对水体和生态系统功能构成严重风险。在此，开发了一种源自农业废弃物稻壳的新型CuFeO/C/SiO纳米复合材料，以满足有效降解TCH的迫切需求。对合成材料的全面表征最终证明了CuFeO纳米颗粒成功掺入C/SiO基质中。与单独的C/SiO和CuFeO相比，CuFeO/C/SiO纳米复合材料对TCH降解表现出显著优异的光催化活性，揭示了在促进TCH降解方面的协同效应。在0.15 mM过一硫酸盐（PMS）存在下，3.0 wt%的CuFeO/C/SiO纳米复合材料表现出最佳性能，在15分钟内实现了98.41%的TCH去除率。猝灭实验和电子顺磁共振（EPR）分析表明，TCH降解是通过硫酸根自由基（SO）、羟基自由基（•OH）、超氧阴离子（O）和单线态氧（O）的作用发生的。我们的研究表明，CuFeO与C/SiO之间的协同效应增强了材料稳定性并促进了催化剂与PMS的结合，从而提高了催化性能。这些结果表明，CuFeO/C/SiO活化PMS是环境修复中高效降解TCH的一种有前景的技术。
