hap自组装球的简易合成及其光催化增效作用 - acta phys chim sin.pdf

物理化学学报(Wuli Huaxue Xuebao) December Acta Phys. -Chim. Sin. 2011, 27 (12), 2939-2945 2939 [Article] doi: 10.3866/PKU.WHX HAP 自组装球的简易合成及其光催化增效作用 杨小红2 刘 畅1 刘金库1,* 朱子春2 1 2 ( 华东理工大学化学系, 上海200237; 池州学院化学系, 安徽池州247000) 摘要: 选择生物协同模板, 通过简单的控制组装工艺, 制备出结构均一有序的羟基磷灰石(HAP)纳米组装球. 该纳米组装球整体尺寸约5-6 μm, 球体中心部分尺寸约为2.5-3 μm. 通过X 射线粉末衍射(XRD)、透射电子显 微镜(TEM)、扫描电子显微镜(SEM)、傅里叶变换红外(FT-IR)光谱、比表面积(BET)测试等手段对产物形貌、结 构和比表面积进行了表征. 产物作为催化剂载体, 对氧化锌催化降解罗丹明B (RhB)的催化效率提高了125%, 催化剂回收率提高了23.1%, 有效降低了催化剂的用量, 在有机物降解领域具有潜在的应用价值. 同时还对产 物的控制生成过程和催化增效机理做了初步探讨. 关键词: 羟基磷灰石; 氧化锌; 纳米组装球; 光催化; 增效作用 中图分类号: O643; O644 Facile Synthesis of Assembly HAP Nanoribbon Spheres and the Synergized Action of Its Photocatalytic Properties YANG Xiao-Hong2 LIU Chang1 LIU Jin-Ku1,* ZHU Zi-Chun2 1 ( Department of Chemistry, East China University of Science and Technology, Shanghai 200237, P. R. China; 2Department of Chemistry, Chizhou University, Chizhou 247000, Anhui Province, P. R. China) Abstract: Hydroxyapatite (HAP) nanoribbon spheres with well-defined nanoscale structures and regular morphology were successfully synthesized using a bioactive cooperate template. The spheres are about 5-6 μm in diameter and they form from nanoribbons of 2.5 to 3 μm in length. The morphologies, structures, and surface areas of the products were studied by X-ray diffraction (XRD), transmission electron microscopy (T