Immobilization and characterization of copper chlorophthalocyanine on alumina-pillared montmorillonite
Immobilization and characterization of copper chlorophthalocyanine on alumina-pillared montmorillonite
复制标题
氧化铝柱撑蒙脱石上氯酞菁铜的固定化及表征
DOI：
10.1016/s1381-1169(01)00348-x
复制
发表时间：
2002
影响因子：
--
通讯作者：
A. V. Ramaswamy
中科院分区：
文献类型：
--
作者：
V. Ramaswamy;M. Krishnan;A. V. Ramaswamy
氧化铝柱撑蒙脱土 (Al-PILC) 已被用作利用超声波技术固定铜-十四氯酞菁 (Cu-Cl14Pc) 络合物的主体材料。热重 (TG)/DTG 分析、BET 表面积、XRD、FT-IR 和 UV-VIS 光谱技术已用于表征 Al-PILC 中含有不同浓度铜 (0.104–0.152wt.%) 的样品。研究表明，Cu-Cl14Pc存在于Al-PILC的多孔结构中，并且与普通搅拌方法制备的样品相比，超声处理制备的固定化样品含有更好分散的Cu-Cl14Pc。报道了使用固定化 Cu-Cl14Pc 和 H2O2 将苯酚羟基化为邻苯二酚和对苯二酚的催化活性。固定的铜是羟基化的活性中心。 Cu-Cl14Pc的制备和分散方法影响其催化活性。
Alumina-pillared montmorillonite (Al-PILC) has been used as the host material for the immobilization of copper-tetradecachlorophthalocyanine (Cu-Cl14Pc) complex using ultrasonic technique. Thermogravimetric (TG)/DTG analysis, BET surface area, XRD, FT-IR and UV–VIS spectroscopic techniques have been used to characterize samples containing different concentrations of copper (0.104–0.152wt.%) in Al-PILC. The studies reveal that Cu-Cl14Pc is present in the porous structure of Al-PILC and that the immobilized samples prepared by ultrasonication contain better-dispersed Cu-Cl14Pc compared to the sample prepared by normal agitation method. The catalytic activity for the hydroxylation of phenol to catechol and hydroquinone using the immobilized Cu-Cl14Pc and H2O2is reported. The immobilized copper is the active center in the hydroxylation. The method of preparation and dispersion of Cu-Cl14Pc influence the catalytic activity.