摘要
以硫酸亚铁为铁的前驱体,活性炭为载体,利用液相共沉淀法制备0价纳米铁粒子并负载到活性炭上,在微波辐照条件下对水体抗生素进行吸附降解,研究了微波功率、辐照时间等因素对抗生素去除率的影响。结果表明,负载体对四环素的吸附过程为吸热反应,满足Langmuir等温吸附方程和准2级动力学模型,微波辐照能很好的分解负载体上的抗生素,在辐照功率500 W、辐照时间100 min时,负载体上的抗生素降解率高达98.29%。
Taking FeSO4 as the precursor for ferric iron and activated carbon as a carder, Liquid-phase Coprecipitation method was used for preparation of zero-valent iron nanoparticles which loaded upon activated carbon. Ttien antibiotics were absorbed and degraded with this complex on the condition of microwave irradiation. The microwave power and irradiation time was studied to find influencing factors of the removal. Experiment result showed that the adsorbing of tetracycline was endothermic reaction which could be fitted with the Langmuir isotherm adsorption equation and pseudo-second-order equation model. Microwave irradiation could efficiently decompose antibiotics on the carder and the highest removal ratio could be 98.29% after 100 min irradiation when the microwave power was 500 W.
出处
《水处理技术》
CAS
CSCD
北大核心
2013年第12期91-94,共4页
Technology of Water Treatment
关键词
活性炭
纳米铁
抗生素
微波
activated carbon
zero-valent iron nanoparticles
antibiotics
microwave
