Au/BiOI花状微米球的制备及其对抗生素的降解特性  

Preparation of Au/BiOI Composite Flower-like Microspheres and Its Degradation Characteristics to Antibiotics

作　　者：严惠儒 林水源 钟祥康 黄学帅 杨玉如 冯梓盈 朱淼 谢伟 YAN Hui-ru;LIN Shui-yuan;ZHONG Xiang-kang;HUANG Xue-shuai;YANG Yu-ru;FENG Zi-ying;ZHU Miao;XIE Wei(School of Physics Science and Technology,Lingnan Normal University,Guangdong Zhanjiang 524048,China)

机构地区：[1]岭南师范学院物理科学与技术学院,广东湛江524048

出　　处：《广州化工》2023年第5期43-46,共4页GuangZhou Chemical Industry

基　　金：岭南师范学院广东省大学生创新创业训练计划(1037);广东省科技专项(“大专项+任务清单”)项目(2021A05228);广东省自然科学基金(2020A1515011488);清洁能源材料化学广东省普通高校重点实验室开放课题(CEMC2022010);广东省普通高校重点领域专项(2022ZDZX3011);广东省自然科学基金(2023A1515012923);广东省大学生攀登计划(pdjh2023a0319)。

摘　　要：采用水热法制备BiOI花状微米球,采用光还原法制备Au/BiOI复合材料。BiOI花球由许多的纳米片交错堆积而形成,Au纳米颗粒附着在BiIO花状球的表面。随着Au含量的增加,样品在可见光照射下对MB和TC的降解率逐渐增加,Au-4样品对MB和TC降解率达到95%以上。过量的Au颗粒复合,降低了样品的光吸收性能,从而降低了材料的降解特性。上述结果表明Au/BiOI复合纳米材料在环境保护领域,尤其是对抗生素的降解方面具有潜在的应用价值。BiOI flower-like microspheres were prepared by hydrothermal method,and then Au/BiOI composite nanomaterials were prepared by photodeposition method.The degradation characteristics of methylene blue and tetracycline by Au/BiOI were studied to investigate the kinetic behaviour of Au/BiOI photocatalysts for the oxidative degradation of antibiotics.The results showed that the degradation rate of Au/BiOI composites on MB was faster than that of pure BiOI materials,and the best degradation rate of Au-4 samples on MB was achieved after 30 min of light exposure,reaching more than 95%.One of the composite Au-4 samples also achieved 95%degradation of tetracycline after 1 h of light exposure.

关 键 词：BiOI 光催化 亚甲基蓝 四环素 

分 类 号：O482.3[理学—固体物理]