ZnO及其掺杂纳米粒子的反相微乳液法合成及表征

Microemulsion-mediated synthesis and charactrization of zinc oxide and doted nanoparticles

分别以OP/正庚烷/正己醇/水溶液和吐温60/溴代十六烷基吡啶/二甲苯/正戊醇/水溶液反相微乳液体系,合成了ZnO及ZnO-Cr2O3,ZnO-Cr2O3-NiO,ZnO-Cr2O3-NiO-MnO掺杂纳米粒子.研究了前驱物、反应物浓度和后处理对粒子制备和粒径的影响.结果表明:所给微乳液体系适合ZnO及其掺杂纳米粒子的制备;通过选择反应途径及控制反应物浓度可实现对粒径的控制;ZnO纳米粒子的粒径为10～200nm,二元、三元、四元掺杂型纳米粒子的粒径均约为20nm.

ZnO nanoparticle and ZnO-Cr2O3,ZnO-Cr2O3-NiO,ZnO-Cr2O3-NiO-MnO doted nanoparticles were synthesised.In the systems of OP/heptane/1-hexanol/H2O reversed microemulsion,the effects of precursor,reactant concentrations and subsequent treatments on preparation and size of nanoparticles were studied.The results show that OP/heptane/1-hexanol/H2O reversed microemulsion systems is suit for preparation of ZnO and its doted nanoparticles,and size of nanoparticles can be controlled by choose of precursor and different reactant concentrations.These ultrafine ZnO nanoparticals have size ranging from 10-200?nm and the doted ones have size of 20nm.