微波法制备铁改性生物炭及除氟效果  

Preparation of Iron-modified Biochar by Microwave and Its Defluoridation Effect

作　　者：郭丰艳[1,2] 陈晶晶 姚理思 翟德广 陈文磊 吴景新 陈永强[3] GUO Feng-yan;CHEN Jing-jing;YAO Li-si;ZHAI De-guang;CHEN Wen-lei;WU Jing-xin;CHEN Yong-qiang(School of New Materials and Chemical Engineering,Tangshan University,Hebei Tangshan 063000;Key Laboratory of Chemical Environmental Protection and New Film Coating Materials in Tangshan City,Hebei Tangshan 063000;Tangshan Best High Temperature Material Co.,Ltd.,Hebei Tangshan 063000,China)

机构地区：[1]唐山学院新材料与化学工程学院,河北唐山063000 [2]唐山市化工环保与新型薄膜涂层材料重点实验室,河北唐山063000 [3]唐山贝斯特高温材料有限公司,河北唐山063000

出　　处：《广州化工》2022年第22期86-88,95,共4页GuangZhou Chemical Industry

基　　金：河北省2022年大中学生科技创新能力培育专项项目(22E50427D)。

摘　　要：采用微波法制备铁改性的梧桐叶生物炭(w-WBC-Fe),采用扫描电子显微镜(SEM)、X射线衍射(XRD)、傅里叶变换红外光谱(FTIR)和EDS能谱对其进行表征。实验结果表明w-WBC-Fe含有较丰富的含氧官能团,Fe元素被成功负载在生物炭表面。通过静态吸附实验,将该材料用于含氟模拟废水的实验研究。结果显示,当溶液pH值为6.5,F-初始浓度为9.8 mg/L、温度为30℃、投加量为3 g/L、吸附时间为4 h时,吸附达到平衡,w-WBC-Fe表面F-吸附量为2.21 mg/g,是未改性生物炭(w-WBC)的近14倍。Using phoenix tree leaf as raw material,iron-modified biochar named as w-WBC-Fe was prepared by microwave method.The material was characterized by scanning electron microscopy(SEM),X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR)and EDS energy spectrum analysis.The results showed that Fe was successfully loaded onto the surface of biochar which contains abundant oxygen containing functional groups.The material was used in the experimental study of simulated wastewater containing fluorine by static adsorption experiment.The results indicated that when pH was 6.5,the initial concentration of F-was 9.8 mg/L,the temperature was 30℃,the dosage was 3 g/L,and the adsorption time was 4 h,the adsorption reached equilibrium.The adsorption capacity was 2.21 mg/g,which was nearly 14 times of that of unmodified biochar(w-WBC).

关 键 词：生物炭 载铁 氟离子 吸附 微波 

分 类 号：O69[理学—化学]