高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    

室外弱光驱动下海藻酸钙/Bi19Br3S27凝胶球的四环素降解性能

陈巧,朱柠,李政伟,吴佳维,史林兴,张原原   

  1. 江苏海洋大学理学院, 江苏省先进材料功能调控技术重点实验室
  • 收稿日期:2026-05-22 修回日期:2026-06-11 网络首发:2026-06-17 发布日期:2026-06-17
  • 通讯作者: 张原原 E-mail:zhangyuanyuan@jou.edu.cn
  • 基金资助:
    国家自然科学基金青年科学基金项目（批准号：62504095），江苏省自然科学基金青年基金项目（批准号：BK20241055）资助

Tetracycline degradation performance of calcium alginate/Bi19Br3S27 gel spheres under outdoor low-light conditions

CHEN Qiao, ZHU Ning, LI Zhengwei, WU Jiawei, SHI Linxing, ZHANG Yuanyuan   

  1. Jiangsu Key Laboratory of Function Control Technology for Advanced Materials, School of Science, Jiangsu Ocean University
  • Received:2026-05-22 Revised:2026-06-11 Online First:2026-06-17 Published:2026-06-17
  • Contact: Yuan-Yuan ZHANG E-mail:zhangyuanyuan@jou.edu.cn
  • Supported by:
    National Natural Science Foundation of China (62504095), Natural Science Foundation of Jiangsu Province (BK20241055)

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摘要： 本文制备了具有宽光谱响应的Bi19Br3S27（BBS）催化剂粉末，并通过物理包埋法将其负载于海藻酸钙凝胶球（Alg）中，成功构建了Alg/BBS凝胶微球.采用SEM、TEM、XRD、XPS等手段对催化剂的形貌、晶体结构和化学组分进行了表征.在室外自然太阳光条件下，分别于多云和阴天等弱光天气下测试了Alg/BBS对四环素的光催化降解性能.结果表明：在多云天气下，反应120 min后四环素去除效率为80.21%；在阴天天气下，去除效率仍可达76.63%，证明该复合微球在弱光条件下具有良好的催化活性.除了良好的弱光响应性能，Alg/BBS复合微球可通过简单过滤从反应液中分离，表现出良好的可回收潜力.

关键词: Bi19Br3S27, 海藻酸钙微球, 四环素, 光催化降解, 室外弱光

Abstract: In this paper, Bi19Br3S27 (BBS) catalyst powder with broad spectral response was prepared, and Alg/BBS gel microspheres were successfully fabricated by immobilizing the powder into calcium alginate gel beads (Alg) via physical embedding method. The morphology, crystal structure, and chemical composition of the catalyst were characterized by SEM, TEM, XRD, and XPS. Under outdoor natural sunlight, the photocatalytic degradation performance of Alg/BBS toward tetracycline was tested under weak light conditions, including cloudy and overcast days. The results showed that after 120 min of reaction, the tetracycline removal efficiency reached 80.21% on cloudy days and 76.63% on overcast days, demonstrating that the composite beads possess good catalytic activity under weak light conditions. In addition to favorable low-light responsiveness, Alg/BBS composite microspheres can be separated from the reaction solution via simple filtration, demonstrating promising recyclability potential.

Key words: Bi19Br3S27; Calcium alginate microspheres, Tetracycline, Photocatalytic degradation; Outdoor weak light

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