明胶辅助Cd_(1-x)Zn_xS纳米粒子的绿色合成  

Green Synthesis of Cd_(1-x)Zn_xS Nanoparticles with Gelatin as Capping Agent

作　　者：尹蝶儿[1] 李亮[1] 康诗钊[1] 李向清[1] 穆劲[1] 

机构地区：[1]上海应用技术学院化学与环境工程学院,上海201418

出　　处：《上海应用技术学院学报（自然科学版）》2012年第3期182-185,190,共5页Journal of Shanghai Institute of Technology: Natural Science

基　　金：上海应用技术学院引进人才科研启动项目(YJ2009-34)

摘　　要：采用对环境友好的明胶作为包覆剂及形貌控制剂,室温下在水凝胶中制备了CdS、ZnS以及Cd1-xZnxS(0≤x≤1)固溶体的纳米粒子。利用X射线衍射(XRD)、紫外-可见吸收光谱(UV-Vis)、荧光光谱(PL)对所得产物进行了表征。根据谢乐公式,当Zn的含量(x)为0、0.25、0.50、0.75和1.00时,Cd1-xZnxS粒径分别约为2.2、1.8、1.0、1.9、4.0nm。结果表明,通过改变投料比可以获得具有不同光学带隙和晶格常数的Cd1 xZnxS纳米粒子。此外,还考察了明胶用量对Cd1-xZnxS纳米粒子发光性质的影响。CdS, ZnS and Cd1-x Znx S （0≤x≤1） solid-solution nanoparticles were synthesized in hydrogel at room-temperature with environmentally friendly gelatin as capping agent and morphology control agent. The composition,structure and morphology of the products were characterized by XRD,UV- Vis and Photoluminescence （PL） spectra. According to the Scherrer equation, the nanoparticle sizes were approximately 2.2,1.8,1.0,1.9 and 4.0 nm respectively, when the ratio of Zn（x） was 0,0.25,0.50, 0.75 and 1.00. The result showed that Cd1-x Znx S with different optical band gaps and crystallographic lattice constants can be synthesized by the change of raw material ratio. The influences of gelatin amount on luminescence properties of Cd1-x Znx S nanoparticles were also investigated.

关 键 词：明胶 Cd1-xZnxS 纳米粒子 绿色合成 

分 类 号：TB383.1[一般工业技术—材料科学与工程]