陶瓷学报
陶瓷學報
도자학보
Journal of Ceramics
2015年
5期
521-525
,共5页
流变相法%矿物%包裹型纳米零价铁%三氯甲烷%去除率
流變相法%礦物%包裹型納米零價鐵%三氯甲烷%去除率
류변상법%광물%포과형납미령개철%삼록갑완%거제솔
rheological phase reaction method%mineral%coated nanoscale zero-valent iron%chloroform%removal rate
本实验以高岭土(Kaolin)、膨润土(Bentonite)、沸石(Zeolite)作为包裹剂,制备了矿物包裹型纳米零价铁(K-Fe0、B-Fe0、Z-Fe0),用XRD和TEM对样品进行了表征.研究了样品投加量、溶液pH值及初始CHCl3浓度对水中CHCl3去除率的影响,探讨了矿物包裹型纳米零价铁去除水中CHCl3的反应机理.试验结果表明,矿物包裹型纳米零价铁投加量为1.5 g/L,pH值为5,初始CHCl3浓度为10 mg/L时,CHCl3的去除效果较好.K-Fe0、 B-Fe0、Z-Fe0对水中三氯甲烷的去除率分别为73.1%、70.9%、74.4%.
本實驗以高嶺土(Kaolin)、膨潤土(Bentonite)、沸石(Zeolite)作為包裹劑,製備瞭礦物包裹型納米零價鐵(K-Fe0、B-Fe0、Z-Fe0),用XRD和TEM對樣品進行瞭錶徵.研究瞭樣品投加量、溶液pH值及初始CHCl3濃度對水中CHCl3去除率的影響,探討瞭礦物包裹型納米零價鐵去除水中CHCl3的反應機理.試驗結果錶明,礦物包裹型納米零價鐵投加量為1.5 g/L,pH值為5,初始CHCl3濃度為10 mg/L時,CHCl3的去除效果較好.K-Fe0、 B-Fe0、Z-Fe0對水中三氯甲烷的去除率分彆為73.1%、70.9%、74.4%.
본실험이고령토(Kaolin)、팽윤토(Bentonite)、비석(Zeolite)작위포과제,제비료광물포과형납미령개철(K-Fe0、B-Fe0、Z-Fe0),용XRD화TEM대양품진행료표정.연구료양품투가량、용액pH치급초시CHCl3농도대수중CHCl3거제솔적영향,탐토료광물포과형납미령개철거제수중CHCl3적반응궤리.시험결과표명,광물포과형납미령개철투가량위1.5 g/L,pH치위5,초시CHCl3농도위10 mg/L시,CHCl3적거제효과교호.K-Fe0、 B-Fe0、Z-Fe0대수중삼록갑완적거제솔분별위73.1%、70.9%、74.4%.
The coated nanoscale zero-valent iron particles (K-Fe0,B-Fe0 and Z-Fe0) were synthesized by rheological phase reaction method,using kaolin,bentonite,and zeolite as coating agents. The samples were characterized by means of XRD and TEM. The effect of sample dosage,pH value and initial CHCl3 concentration on the removal rate of CHCl3,and the reaction mechanism of the coated nanoparticles were researched. Results show when the sample dosage was 1.5 g/L ,the pH value was 5,and the initial CHCl3 concentration was 10 mg/L,the removal rates of chloroform in water by kaolin-Fe0,bentonite-Fe0,and zeolite-Fe0were 73.1%,70.9%,74.4%,respectively.
