CAJ | 학술논문

采用原位聚合法合成了硝酸掺杂的纳米零价铁/聚苯胺/凹凸棒黏土（ nZVI/PANI/ATP）纳米纤维复合材料，用于去除废水中的Cr（ VI）。考察了投料质量、吸附时间和pH 值对其吸附性能的影响，对吸附过程进行了动力学和热力学分析。结果表明，PANI/ATP表面负载纳米零价铁（ nZVI），解决了nZVI颗粒的团聚及在处理Cr（Ⅵ）时容易被腐蚀和钝化的问题。复合材料制备过程中Fe、An和ATP的质量比为0.74：1：4时，所制备的材料吸附容量达到87.95 mg/g，nZVI/PANI/ATP复合材料对Cr（Ⅵ）的吸附符合准二级动力学模型，吸附为化学吸附。
채용원위취합법합성료초산참잡적납미령개철/취분알/요철봉점토（ nZVI/PANI/ATP）납미섬유복합재료，용우거제폐수중적Cr（ VI）。고찰료투료질량、흡부시간화pH 치대기흡부성능적영향，대흡부과정진행료동역학화열역학분석。결과표명，PANI/ATP표면부재납미령개철（ nZVI），해결료nZVI과립적단취급재처리Cr（Ⅵ）시용역피부식화둔화적문제。복합재료제비과정중Fe、An화ATP적질량비위0.74：1：4시，소제비적재료흡부용량체도87.95 mg/g，nZVI/PANI/ATP복합재료대Cr（Ⅵ）적흡부부합준이급동역학모형，흡부위화학흡부。
Nanometer zero valent iron/polyaniline/attapulgite( nZVI/PANI/ATP)doped with hydrochlo-ric acid were prepared by in situ polymerization method and used for removal of Cr( VI ). The effects of the mass ratio of the nanocomposite to the aqueous solution,the quality of the nZVI/PANI/ATP nanofiber composite ,adsorptive time as well as pH value in the solution on the adsorptive performance of nZVI/PA-NI/ATP nanofiber composite were investigated. The results indicated that the effect of the anticorrosive properties and electrical conductivity of PANI on the surface of the nZVI particles for the removal of Cr ( VI)was studied,settling the problem of aggregation and easy-corroding of nZVI particles. The mass ratio of Fe,An and ATP in this material was 0. 74:1:4,the adsorption capacity achieved 87. 95 mg/g. The ad-sorption kinetics follows pseudo-second-order model and it is a chemical adsorption process.