基于响应面法的BiFeO3纳米复合材料光催化降解水溶液中的环丙沙星抗生素

IF 3.1 Q2 ENVIRONMENTAL SCIENCES
Roqiyeh Mostafaloo, M. Asadi-Ghalhari, H. Izanloo, A. Zayadi
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引用次数: 16

摘要

用于治疗多种细菌感染的环丙沙星抗生素在水中具有很高的溶解能力。低浓度的环丙沙星流入水资源会影响植物的光合作用,改变藻类的形态结构,进而破坏水生生态系统。75%的这种化合物从体内排泄到废水中,废水应被清除。BiFeO3是一种对可见光有响应的铋基半导体光催化剂,最近被用于去除水中的有机污染物。研究了BiFeO3工艺去除水中环丙沙星的最佳工艺条件。采用响应面法研究了pH、反应时间、环丙沙星初始浓度、BiFeO3用量和温度对环丙沙星去除效果的影响。通过相应的统计数据(即F值为14.79和1.67,p值为2=0.9107,R2调整=0.492,R2预测=0.70,AP=16.761)证实了该模型的有效性和充分性。因此,在最佳条件下,环丙沙星的去除率达到100%(pH 6,初始浓度为1 mg/L,BiFeO3用量为2.5 g/L,反应温度为30°C,工艺时间为46 min)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Photocatalytic degradation of ciprofloxacin antibiotic from aqueous solution by BiFeO3 nanocomposites using response surface methodology
Ciprofloxacin antibiotic that is used to cure several kinds of bacterial infections have a high solubility capacity in water. The influent of ciprofloxacin to water resources in a low concentration affect the photosynthesis of plants, transforms the morphological structure of the algae, and then disrupts the aquatic ecosystem. 75% of this compound is excreted from the body down to the wastewater which should be removed. BiFeO3, a bismuth-based semiconductor photocatalyst that is responsive to visible light, has been recently used to remove organic pollutants from water. In this study, the optimal conditions for removing ciprofloxacin from aqueous solutions by the BiFeO3 process were investigated. Effective parameters namely pH, reaction time, ciprofloxacin initial concentration, BiFeO3 dose, and temperature on ciprofloxacin removal were studied by using response surface methodology. The validity and adequacy of the proposed model was confirmed by the corresponding statistics (i.e. F-values of 14.79 and 1.67 and p-values of 2 = 0.9107, R2adjusted = 0.8492, R2 predicted = 0.70, AP = 16.761). Hence the Ciprofloxacin removal efficiency reached 100% in the best condition (pH 6, initial concentration of 1 mg/L, BiFeO3 dosage of 2.5 g/L, reaction temperature of 30° C, and process time of 46 min).
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来源期刊
CiteScore
7.90
自引率
2.90%
发文量
11
审稿时长
8 weeks
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