ZOUJian-yong,LINChen,MENGYu,et al.Construction of Sono?photocatalytic Membrane Reactor and Its Removal Efficiency for Ciprofloxacin[J].China Water & Wastewater,2025,41(3):1-6.
声光催化膜反应器构建及其对环丙沙星的去除效能
- Title:
- Construction of Sono?photocatalytic Membrane Reactor and Its Removal Efficiency for Ciprofloxacin
- Keywords:
- sono-photocatalytic process; ultrafiltration; ciprofloxacin; hydraulic retention time; hydroxyl radical
- 摘要:
- 随着水环境中抗生素污染的日益严重，开发高效、稳定的抗生素去除技术至关重要。以Bi2MoO6/FeVO4核壳纳米材料为催化剂，超滤膜为分离手段，将超滤膜与声光催化技术相耦合而构建了声光催化膜反应器（SPMR），并探究其对水中环丙沙星（CIP）的去除效果。结果表明，SPMR对CIP的降解率随水力停留时间（HRT）增加而提高，当HRT为60 min时，降解率可达94.56%。中空纤维膜能有效截留催化剂，保证反应器中催化剂浓度稳定。在SPMR降解CIP过程中，羟基自由基（·OH）和空穴（h+）起主导作用。SPMR对实际水体和模拟水中的CIP均有良好的去除效果，降解率均在80%以上，证实了声光催化技术可用于去除不同水体中的CIP。
- Abstract:
- As antibiotic contamination in aquatic environments intensifies, it becomes crucial to develop efficient and stable technologies for antibiotic removal. The sono-photocatalytic membrane reactor (SPMR) was investigated to use Bi2MoO6/FeVO4 core-shell nanomaterials as catalysts and ultrafiltration membranes for separation, focusing on its effectiveness in removing ciprofloxacin (CIP) from water. The degradation rate of CIP in the SPMR increased with hydraulic retention time (HRT) and reached 94.56% when HRT was 60 min. The hollow fiber membrane effectively retained the catalyst, ensuring stable catalyst concentration within the reactor. Hydroxyl radicals (·OH) and holes (h+) played a key role in the degradation process. The SPMR exhibited excellent removal efficiency for CIP across various real and synthetic water sources, with degradation rates consistently above 80%. This research confirms the feasibility of sono-photocatalytic technology for CIP removal in different water bodies.
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