磷钼酸和邻菲啰啉杂多化合物的固相合成及光催化性能  

Solid-phase synthesis and photocatalysis behavior of heteropoly compound based on phosphomolybdic acid and phenanthroline

作　　者：张志红[1] 赵秀峰[1] 张立忠[1] 史峰山[1] 孟宪锋[1] 

机构地区：[1]昌吉学院化学与应用化学系,新疆昌吉831100

出　　处：《化学试剂》2011年第12期1108-1112,共5页Chemical Reagents

基　　金：新疆维吾尔自治区教育厅科研计划重点项目(XJEDU2008I39)

摘　　要：通过磷钼酸(H3PMo12O40.xH2O)和邻菲啰啉(C12H8N2.H2O)的低热固相反应,合成了一种非水溶性的杂多化合物。用等离子体原子发射光谱(ICPAE)、元素分析(EA)和热重-差热分析(TG-DTA)确定该化合物组成为(C12H8N2)3.H3PMo12O40。用X-射线衍射(XRD)、傅里叶变换红外光谱(FT-IR)和紫外-可见漫反射光谱(UV-Vis DRS)对产物进行了表征。结果表明,该化合物保持磷钼酸根的Keggin结构,呈现可逆的光致变色效应。在高压汞灯照射下,该化合物对甲基橙水溶液的脱色反应表现出较好的光催化活性,催化剂易于回收,且重复使用效果好。A water-tolerant heteropoly compound was synthesized by low-heat solid-phase reaction between phosphomolybdic acid（H3PMO12O40·xH2O） and phenanthroline（C12H8N2·H2O）.The chemical composition of the compound was determined to be（C12H8N2）3·H3PMo12O40 via inductively coupled plasma atomic emission spectroscopy（ICP-AES）,elemental analysis（EA） and thermogravimetry-differential thermal analysis（TG-TDA）.The structure was characterized by powder X-ray diffraction（XRD）,fourier transform infrared spectroscopy（FTIR）,and UV-Vis diffuse reflectance spectroscopy（UV-vis DRS）,and original Keggin structure of phosphotungstic anion was confirmed.The product exhibited reversible photochromatic property and significant heterogeneous photocatalytic activity to decalorization of methyl orange（MO） solution.The catalyst powder could be easily recycled without notable decrease in photocatalytic activity.

关 键 词：固相合成 杂多化合物 磷钼酸 邻菲啰啉 光催化 

分 类 号：O643.3[理学—物理化学]