摘要
以盐酸四环素为处理对象,稻壳基生物二氧化硅(BSi)为载体,制备了兼具经济性和高效性的BSi@TiO_(2)核壳催化剂,结合等离子体介质阻挡放电(DBDP)技术,形成DBDP协同催化反应体系。研究结果表明,在DBDP技术辅助下,BSi@TiO_(2)-72%对四环素的降解率达到78.42%,超过单独催化和单独放电的总降解率,证明BSi@TiO_(2)催化与DBDP放电之间存在良好的协同效应。TiO_(2)负载质量分数为36%时,催化剂在降解性能与成本间达成最佳平衡。此外,随着放电电压的增加,降解效率显著提升;四环素初始浓度的增加则导致降解率下降;碱性条件有助于提高降解效率。研究结果为探究抗生素污染物的高效无害化处理技术提供了有益借鉴和参考。
This study focuses on the treatment of hydrochloric tetracycline by utilizing a rice husk derived bio-silica(BSi)supported TiO_(2)shell-core catalyst(BSi@TiO_(2))that offers both cost-effectiveness and high efficiency.By integrating this catalyst with dielectric barrier discharge plasma(DBDP)technology,a DBDP-assisted catalytic reaction system was established.The results indicate that under the assistance of DBDP,BSi@TiO_(2)-72%achieved a tetracycline degradation rate of 78.42%,surpassing the combined degradation rates of standalone catalysis and discharge,thus demonstrating a significant synergistic effect between BSi@TiO_(2)catalysis and DBDP discharge.The catalyst achieved an optimal balance between degradation performance and cost-effectiveness when the TiO_(2)loading was 36%.Furthermore,the experiments revealed that an increase in discharge voltage significantly enhanced the degradation efficiency,while higher initial concentrations of tetracycline led to decreased degradation rates.Alkaline conditions further improved the degradation efficiency.This research provides valuable insights and references for the development of effective and non-toxic remediation techniques for antibiotic pollutants.
作者
张玲
胡素美
戚鑫
陈树荣
姚依鹏
刘晓薇
ZHANG Ling;HU Sumei;QI Xin;CHEN Shurong;YAO Yipeng;LIU Xiaowei(School of Biology,Food,and Environment,Hefei University,Hefei 230022,China;International(Sino-German)Joint Research Center for Biomass of Anhui Province,Hefei 230022,China)
出处
《聊城大学学报(自然科学版)》
2025年第4期579-586,595,共9页
Journal of Liaocheng University:Natural Science Edition
基金
国家自然科学基金项目(52070063,42007330)
安徽省高等学校自然科学研究项目(KJ2021A1011)
合肥学院人才科研基金项目(23RC28)资助。
