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化学工业与工程 2013, Vol. 30 Issue (3) :28-32    DOI:
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MPc/SBA-15的模拟酶催化研究
 陈伟, 庞美玲, 单秋杰, 李婷婷
齐齐哈尔大学化学与化学工程学院
Mimic Enzyme Catalytic Reaction of MPc/SBA-15
 CHEN  Wei, PANG  Mei-Ling, DAN  Qiu-Jie, LI  Ting-Ting
College of Chemistry and Chemical Engineering

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摘要 采用浸渍法将两种金属酞菁—α-八丁氧基酞菁钴(CoPc)和α-八丁氧基酞菁铜(CuPc)负载到介孔分子筛SBA-15上,制备CoPc/SBA-15和CuPc/SBA-15两种催化剂,通过紫外-可见光谱、红外光谱、N2吸附对其结构进行表征,研究pH值、催化剂类型、催化剂用量、底物浓度以及反应温度对催化效果的影响。实验结果表明:在相同的催化条件下,两种催化剂对巯基乙醇(ME)均表现出良好的催化性能,且CuPc/SBA-15的催化氧化性能优于CoPc/SBA-15,符合酶催化氧化反应的特征,遵循米氏方程动力学规律,其米氏常数和最大反应速率分别为27.23 mmol/L和1.72×10-4 L/min,该催化反应属于吸热反应,其活化能Ea为29.17 kJ/mol。
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陈伟
庞美玲
单秋杰
李婷婷
关键词金属酞菁   催化氧化   巯基乙醇   反应动力学     
Abstractα-Octo-Butoxy phthalocyanin cobalt (CoPc) and  α-octo-butoxy phthalocyanin copper (CuPc) were loaded on mesoporous molecular sieves SBA-15 by impregnation to obtain CoPc/SBA-15 and CuPc/SBA-15 catalysts. UV-Vis absorption spectra, infrared spectra (IR), N2 adsorption were used to characterize the target product. The experimental results indicated that both CoPc/SBA-15 and CuPc/SBA-15 exhibited good catalytic properties, the conversion rate of CuPc/SBA-15 to mercaptoethanol was greater than that of CoPc/SBA-15 to mercaptoethanol. The catalyst showed excellent activity in the reaction with kinetic characteristic of peroxidase. The reaction conformed with Michaelis kinetic equation. The Michaelis constant and maximum reaction rate were 27.23 mmol/L and 1.72×10-4 L/min, respectively, and the activation energy of the CuPc/SBA-15 calculated was 29.17 kJ/mol.
Keywordsmetallophthalocyanines   catalytic oxidation   mercaptoethanol   reaction kinetics     
Received 2012-09-11;
Fund:

齐齐哈尔大学研究生创新科研项目(YJSCX2011-027X)。

Corresponding Authors: 陈伟,电话:(0452)2738220,E-mail: chenwei150080@163.com。     Email: chenwei150080@163.com
About author: 陈伟(1967-),男,教授,从事配合物功能材料的合成及性能研究。
引用本文:   
陈伟, 庞美玲, 单秋杰, 李婷婷.MPc/SBA-15的模拟酶催化研究[J].  化学工业与工程, 2013,30(3): 28-32
CHEN Wei, PANG Mei-Ling, DAN Qiu-Jie, LI Ting-Ting.Mimic Enzyme Catalytic Reaction of MPc/SBA-15[J].  Chemcial Industry and Engineering, 2013,30(3): 28-32
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