Study on the Preparation of CdS Nanoparticles Mo Xiaoping, Wang Shichang (Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072) Abstract CdS nanoparticles were prepared by sol-gel method. The growth process of CdS nanoparticles and the factors which determining the size and stability of the particles were studied. The particle size distribution is getting broad as the reaction temperature increases. The size of the nanoparticles was only slightly affected by the concentration of HSCH2COOH in certain range. As the pH increases, the CdS nanoparticles become larger and more stable. Key words Cadmium sulfide, Nanoparticle, Preparation CdS纳米粒子制备的研究 莫笑萍 王世昌* (天津大学化工学院化学工程研究所 天津 300072) 摘要 采用溶胶-凝胶法制备了CdS纳米粒子，研究了其生长过程及反应条件对CdS纳米粒子粒径及稳定性的影响。结果表明，反应温度升高会导致粒度均一性下降；在一定范围内，HSCH2COOH用量对粒径几乎没有影响；溶液的pH升高，粒子长大，稳定性提高。 关键词 CdS 纳米粒子 制备 莫笑萍 女，27岁，博士生，现从事半导体纳米材料的制备及性能。 *联系人 2002-02-03收稿，2002-05-09修回 (PDF全文下载c02088)