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以3-(环己氧基)-邻苯二腈和氯化铜为原料,通过钼酸铵固相法合成了一种烷氧基取代的铜酞菁配合物α-四(环己氧基)铜酞菁(CuPc),采用浸渍法将其负载在MCM-41和SBA-15介孔分子筛中,制备了CuPc/MCM-41和CuPc/SBA-15催化剂,并且负载后的酞菁还能回收利用,仍然具有催化效果。采用紫外-可见吸收光谱(UV-vis)、红外光谱(IR)对目标产物进行表征,并用TG对酞菁进行热稳定性分析,结果表明酞菁在200℃时开始失重,350℃时失重率最大为58%;通过氮气吸附对催化剂进行表征,证明酞菁已经进入到分子筛孔道,孔容积分别从0.132 cm3/g减至0.055 cm3/g和0.420 cm3/g减至0.202 cm3/g。研究了2种催化剂在不同pH、催化剂浓度下对巯基乙醇(ME)催化氧化性能的影响,结果表明,CuPc/SBA-15对巯基乙醇(ME)具有较高的催化活性,且2种催化剂的活性在pH=12时都达到最大。
An alkoxy-substituted copper phthalocyanine complex, α-tetrakis (cyclohexyloxy) -phthalocyanine, was synthesized by solid state reaction of ammonium molybdate with 3- (cyclohexyloxy) ) Copper phthalocyanine (CuPc) was prepared and supported on MCM-41 and SBA-15 mesoporous molecular sieves by impregnation method to prepare CuPc / MCM-41 and CuPc / SBA-15 catalysts, Recycling still has a catalytic effect. The target product was characterized by UV-vis and IR, and the thermal stability of phthalocyanine was analyzed by TG. The results showed that the weight loss of phthalocyanine began at 200 ℃ and the weight loss at 350 ℃ The maximum of 58%. The catalyst was characterized by nitrogen adsorption. It was proved that phthalocyanine has entered the molecular sieve pores and the pore volume decreased from 0.132 cm3 / g to 0.055 cm3 / g and 0.420 cm3 / g to 0.202 cm3 / g, respectively. The effects of two catalysts on the catalytic oxidation of mercaptoethanol (ME) at different pHs and catalyst concentrations were studied. The results showed that CuPc / SBA-15 had high catalytic activity for mercaptoethanol (ME) Activity reaches its maximum at pH = 12.