海藻活性炭及其铁改性Fenton体系去除水中抗生素研究

发布时间：2018-01-01 01:38

本文关键词：海藻活性炭及其铁改性Fenton体系去除水中抗生素研究　出处：《功能材料》2017年03期 　论文类型：期刊论文

【摘要】：以大型海藻为原料,采用磷酸活化法制备海藻活性炭(SAC),并以海藻活性炭SAC为吸附剂,抗生素阿莫西林溶液为吸附质,考察了海藻活性炭SAC吸附阿莫西林的初始溶液浓度、pH值的影响。采用准一级、准二级动力学吸附模型对吸附动力学进行了分析。结果表明,海藻活性炭SAC对阿莫西林的吸附符合准二级动力学过程。采用水热法进一步对所制备的海藻活性炭SAC进行铁改性,组成了铁改性海藻活性炭Fenton体系,探讨了以不同比例铁改性海藻活性炭组成的可见光Fenton体系对水中阿莫西林溶液的COD去除率,Fe/SAC-3样品COD去除率为72.5%,具有最佳反应活性。
[Abstract]:The activated algal activated carbon (SAC) was prepared by phosphoric acid activation method from macroalgae. The SAC was used as adsorbent and the antibiotic amoxicillin solution was used as adsorbent. The effect of initial solution concentration and pH value on the adsorption of amoxicillin by seaweed activated carbon (SAC) was investigated. The adsorption kinetics was analyzed by quasi first order and quasi second order kinetic adsorption model. The adsorption of amoxicillin by seaweed activated carbon (SAC) was in accordance with the quasi-second-order kinetic process. The modified seaweed activated carbon SAC was further modified by hydrothermal method. The iron modified seaweed activated carbon (Fenton) system was formed. The COD removal rate of amoxicillin solution in water by visible light Fenton system with different proportion of iron modified algal activated carbon was discussed. The COD removal rate of Fe/SAC-3 sample is 72.5%, and it has the best reaction activity.
【作者单位】：浙江大学宁波理工学院;
【基金】：国家星火科技计划资助项目(2014GA701006,2015GA701047) 宁波市社会发展科技攻关资助项目(2014C50007) 宁波市自然科学基金资助项目(2014A610093)
【分类号】：X703.1
【正文快照】： 0引言抗生素在预防和治疗感染性疾病方面被广泛使用,但其不可避免的造成了水环境中抗生素的残留,并可能引发多种危害。抗生素通常含有的环结构及氮元素,排放到自然界后,容易通过一系列的化学过程形成亚硝基化合物,从而产生毒性、致突变性与致癌性。同时,废水中的抗生素容易诱

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