Fe_(3)O_(4)/GO/ZnO材料的制备及其对盐酸土霉素吸附研究  

Preparation of Fe_(3)O_(4)/GO/ZnO materials and their adsorption to oxytetracycline hydrochloride

作　　者：龙星宇 王志敏 张江群 韦万丽[1] 肖明春 李胜霞 强玲芳 LONG Xingyu;WANG Zhimin;ZHANG Jiangqun;WEI Wanli;XIAO Mingchun;LI Shengxia;QIANG Lingfang(School of Chemistry and Materials Science,Guizhou Normal University,Guiyang,Guizhou 550025,China)

机构地区：[1]贵州师范大学化学与材料科学学院,贵州贵阳550025

出　　处：《贵州师范大学学报（自然科学版）》2023年第1期80-86,共7页Journal of Guizhou Normal University：Natural Sciences

基　　金：贵州省基础研究计划(科学技术基金)(黔科合基础-ZK[2021]一般073号);贵州师范大学“国家级、省级大学生创新创业训练计划”项目([2022]第14号)。

摘　　要：首先采用工艺较为简单的溶剂热法制备Fe_(3)O_(4)材料,对其进一步修饰后可得到Fe_(3)O_(4)/GO复合材料,最后通过化学共沉淀法制备得到具有磁性的纳米材料Fe_(3)O_(4)/GO/ZnO,并将该材料用于盐酸土霉素的吸附研究中。考察了盐酸土霉素的起始浓度、pH以及吸附剂的用量等因素对盐酸土霉素吸附效果的影响,还考察了纳米材料的再生循环次数及最大吸附量。结果表明:盐酸土霉素起始浓度为18 mg/L,pH值为3,材料用量为0.0032 g等最佳条件下,该材料的最大吸附量达到191.93 mg/g,前再生3次吸附量保持在150 mg/g左右,故制备的Fe_(3)O_(4)/GO/ZnO磁性纳米材料对盐酸土霉素具有较好的吸附能力和稳定性。First,the preparation of Fe_(3)O_(4)material is prepared by a thermal solvent method with a relatively simple process,and the Fe_(3)O_(4)/GO composite material can be obtained after further modification;and finally,Magnetic Fe_(3)O_(4)/GO/ZnO was prepared by chemical coprecipitation method.The material was used for the adsorption study of oxytetracycline hydrochloride and the relationship between the initial concentration and pH of oxytetracycline hydrochloride,the dosage of adsorbent and the number of regeneration cycles and the maximum adsorption amount of oxytetracycline hydrochloride was investigated.The experimental results showed that under the optimal conditions of initial oxytetracycline hydrochloride concentration of 18 mg/mL,pH value of 3,and material dosage of 0.0032 g,the maximum adsorption capacity of the material reached 191.93 mg/g,while the adsorption capacity for three times of regeneration was maintained at 150 mg/g.Therefore,the prepared Fe_(3)O_(4)/GO/ZnO magnetic nanomaterial had good adsorption capacity and stability for oxytetracycline hydrochloride.

关 键 词：磁性纳米材料 Fe_(3)O_(4)/GO/ZnO 盐酸土霉素 吸附性 

分 类 号：O656.9[理学—分析化学]