预辐射接枝包埋法制备NWF-g-DMC@Al_(2)O_(3)吸附剂及其对亚氯酸盐的去除  

Preparation of NWF-g-DMC@Al_(2)O_(3)adsorbent by preradiation grafting-embedding and its application for removal of chlorite

作　　者：饶璐 刘东亮 付娌丽 王智俊 陈黄琴[2] 李月生 RAO Lu;LIU Dongliang;FU Lili;WANG Zhijun;CHEN Huangqin;LI Yuesheng(School of Pharmacy,Hubei University of Science and Technology,Xianning 437100,China;School of Stomatology and Optometry,Hubei University of Science and Technology,Xianning 437100,China;College of Nuclear Technology and Chemical Biology,Hubei University of Science and Technology,Xianning 437100,China;Hubei Industrial Technology Research Institute of Intelligent Health,Hubei University of Science and Technology,Xianning 437100,China)

机构地区：[1]湖北科技学院药学院,咸宁437100 [2]湖北科技学院口腔与眼视光医学院,咸宁437100 [3]辐射化学与功能材料湖北省重点实验室,咸宁437100 [4]湖北省智慧康养产业技术研究院湖北科技学院,咸宁437100

出　　处：《辐射研究与辐射工艺学报》2023年第3期17-26,共10页Journal of Radiation Research and Radiation Processing

基　　金：湖北省高等学校优秀中青年科技创新团队项目(T2020022);咸宁市科技研究与开发(高新类研发重点专项)项目(2021GXYF021);湖北省科技厅科技重点研发计划(2022BCE026);湖北科技学院科学发展基金(2022TD01,2022FH09)资助。

摘　　要：亚氯酸盐等消毒副产物,已经被国际癌症研究中心列为致癌物,对其进行有效的处理,成为饮用水净化过程中的当务之急。本文以水为溶剂,通过预辐射接枝包埋反应,成功合成了系列无纺布-甲基丙烯酸乙酯基三甲基氯化铵-纳米三氧化二铝(NWF-g-DMC@Al_(2)O_(3))吸附材料,并系统探讨了吸收剂量、单体浓度等多种因素对增重率的影响,进而探讨不同增重率、包埋率、溶液pH对吸附率的影响,获得了完整的静态吸附平衡曲线。利用红外光谱仪(IR)、扫描电镜(SEM)、热重分析仪(TG)、X射线衍射仪(XRD)、水质分析仪等表征手段对该制得的样品的结构与吸附性能等进行表征与测试。结果表明:单体浓度为40%时,增重率最大。吸收剂量为100 kGy、包埋量为4%、pH为2、初始浓度为10 mg/L时的吸附率最高,NWF-g-DMC@Al_(2)O_(3)吸附剂对消毒剂副产物亚氯酸盐的脱除率高达89%。该吸附剂有望在饮用水、工业用水领域得到广泛的应用。Chlorite and other disinfection byproducts have been listed as carcinogens by the International Center for Research on Cancer.The effective treatment of chlorite is imperative for the drinking water purification process.A series of Non-woven fabric-ethyl methacrylate trimethyl ammonium chloride-nano aluminum oxide(NWF-g-DMC@Al_(2)O_(3))adsorbent materials were synthesized using the pre-radiation grafting–embedding reaction.In this study,water was used as the solvent to systematically discuss the effects of adsorption dose,monomer concentration,and other factors on the weight gain rate and subsequently evaluate the effects of different weight gain rates,embedding rates,and solution pH on the adsorption rate to obtain a complete static adsorption equilibrium curve.Infrared spectroscopy,scanning electron microscopy,thermogravimetric analysis,and X-ray diffraction analysis were used to characterize the structure and adsorption properties of the synthesized samples.The results showed that the weight gain rate was the highest at a monomer concentration of 40%.The adsorption rate was the highest at an adsorption dose of 100 kGy,embedding embedding amount 4%,pH of 2,and initial concentration of 10 mg/L.The chlorite removal rate of the NWF-g-DMC@Al_(2)O_(3)adsorbent was 89%.The new adsorbent is expected to be extensively used in the purification of drinking and industrial water.

关 键 词：无纺布 纳米Al_(2)O_(3) 预辐照接枝包埋 吸附 亚氯酸盐 

分 类 号：TL13[核科学技术—核能科学]