CAJ | 학술논문

利用萃取体系中形成的反胶团为微反应器制备了CeF_3纳米粒子.并对粒子尺寸进行了有效调控.结果表明,通过改变有机相浓度、料液以及反萃液的组成等,可以控制粒子的成核、生长和团聚,有效地对所制备的CeF_3纳米粒子尺寸进行调控.Triton X-100对CeF_3纳米粒子的分散存在一个转折浓度,即随着Triton X-100浓度增大,粉体团聚行为增强,当达到转折浓度时,粉体开始解聚,分散性变好.
이용췌취체계중형성적반효단위미반응기제비료CeF_3납미입자.병대입자척촌진행료유효조공.결과표명,통과개변유궤상농도、료액이급반췌액적조성등,가이공제입자적성핵、생장화단취,유효지대소제비적CeF_3납미입자척촌진행조공.Triton X-100대CeF_3납미입자적분산존재일개전절농도,즉수착Triton X-100농도증대,분체단취행위증강,당체도전절농도시,분체개시해취,분산성변호.
Size-controlled CeF_3 nanoparticles were synthesized via the reversed micelles formed in solvent extraction system. By adjusting the concentration of organic phase, the components of feed and stripping solution, the nucleation, the growth and coagulation of the particles could be controlled. And also the size of CeF_3 nanoparticles could be controlled effectively. A turning point in the concentration of Triton X-100 was found in particle dispersion. The coagulation of parti-cles was accelerated with the increase of the concen-tration of Triton X-100 ([Surf.]). When [Surf.] equaled a critical value, the coagulation was prevented and the dispersion became better.