【作者】 潘海波； 沈水发； 钟超阳； 林仰乐；

【Author】 PAN Hai-bo SHEN Shui-fa ZHONG Chao-yang LIN Yang-le (Institute for Research on Functional Materials,Fuzhou University,Fuzhou 350002,China)

【机构】 福州大学功能材料研究所；

【摘要】 采用超临界处理方法,制备纳米四磺化酞菁铜（Copper（Ⅱ）Tetrasulfophthalocyanine,缩写 CuTSPc） /TiO₂杂化材料,采用 XRD、UV-vis、IR 对光催化剂进行了表征,以光稳定性较强的甲基橙水溶液为降解目标物,研究了 CuTSPc 敏化的 TiO₂光催化荆在太阳光光照射下的光催化活性．在合成的过程中,通过 Sol-gel 工艺使水溶性 CuTSPc 均匀分散在 TiO₂的基质中,经超临界处理后,在 TiO₂晶粒表面形成与 CuTSPc 键合,当可见光激发后,从 CuTSPc 光激发产生的光生电荷向 TiO₂ 转移,同时,通过能量转移,提高 TiO₂自身的光催化效率,以实现 CuTSPc 与 TiO₂协同可见光光催化,其中, 掺杂比例0．17％（摩尔分数）的 CuTSPc/TiO₂太阳光降解率最高(0．0653min^-1)。更多还原

【Abstract】 Nanoscale hybrid material （CuTSPc/TiO₂） was prepared by using supercritical method and was characterized by XRD,UV-vis diffuse reflection and IR.The photocatalytical activity of the TiO2 sensitized by CuTSPc irradiated under solar light was studied by using methyl orange as the photodegradation object.The chemical bond-linkage between TiO₂ and CuTSPc is obtained by supercritical process.The transfer of electron between them can be promoted so that the recombination probability of photo-induced electrons and holes diminish,and the quantum efficiency increases.At the same time,the high absorption property of CuTSPc at visible region （Q band） and cooperation between CuTSPc and TiO₂ can be used to improve the photocatalytical activity of TiO₂.For the more,the state of CuTSPc aggregates and its coverage can influence the photocatalytical performance of the photocatalysts.更多还原