%0 Journal Article
%T 溶胶凝胶自燃烧法合成ZnS纳米颗粒及粒径控制<br>Size Distribution Control of ZnS Nanoparticles Synthesized with the Sol-Gel Auto-combustion Method
%A 赵绪
%A 秦双莉
%A 蒋毓文&lt
%A br&gt
%A ZHAO Xu
%A QIN Shuang-li
%A JIANG Yu-wen
%J 西南大学学报(自然科学版)
%D 2018
%R 10.13718/j.cnki.xdzk.2018.11.013
%X 以硝酸锌、硫脲、乙二醇以及氨基乙酸等为原料，运用溶胶凝胶自燃烧法合成了尺寸和形貌均一性较好的ZnS多晶纳米颗粒.经X射线衍射仪、扫描电子显微镜、紫外-可见分光光度计等表征发现合成的ZnS纳米颗粒具有闪锌矿结构，其平均粒径为160 nm且每个纳米颗粒均由约10 nm的晶粒组成，且样品具有良好的光吸收性能，其能带带隙为3.46 eV.还详细研究了前驱物中组分比例对ZnS纳米颗粒粒径分布的具体影响.研究表明前驱物中<i>n</i>（乙二醇）/<i>n</i>（氨基乙酸）是影响ZnS纳米颗粒粒径分布的主要因素.这一研究结果提供了一种基于自燃烧法的可靠的ZnS纳米颗粒合成工艺，并且实现了利用<i>n</i>（乙二醇）/<i>n</i>（氨基乙酸）独立优化纳米颗粒粒径均一性，有利于基于此工艺的功能材料设计和光电性能优化.<br>Porous ZnS nanoparticles with narrow size distribution and regular shape were synthesized with the sol-gel auto-combustion method, using zinc nitrate, thiourea, ethylene glycol and glycine as the precursors. The structure, morphology and optical properties of the products were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and ultraviolet-visible spectroscopy (UV-Vis). The synthesized ZnS nanoparticles manifested a sphalerite structure and a band gap of 3.46 eV. The average diameter of the nanoparticles was 160 nm, and each nanoparticle consisted of crystallites about 10 nm in size. Further, we studied the influence of the component ratio in the precursors on particle size distribution of ZnS nanoparticles, and found that ethylene glycol/glycine ratio in the precursors was the main factor affecting the particle size distribution of ZnS nanoparticles. In this work, a reliable synthesis routine for ZnS nanoparticles was proposed, and narrow size distribution was achieved with adjustment of ethylene glycol/glycine ratio in the precursors, which is expected to be beneficial to the performance optimization of functional materials synthesized with the sol-gel autocombustion method
%K 溶胶凝胶自燃烧法
%K 硫化锌纳米颗粒
%K 半导体
%K 粒径分布&lt
%K br&gt
%K sol-gel autocombustion
%K zinc sulfide nanoparticle
%K semiconductor
%K size distribution
%U http://xbgjxt.swu.edu.cn/jsuns/html/jsuns/2018/11/20181113.htm