四苯基卟啉锰纳米材料的制备及其性能研究  

Study on preparation and properties of 5,10,15,20-tetraphenylporphyrin manganese nanoparticles

作　　者：侯长军[1] 刘琛[1] 张良[2] 沈才洪[2] 张宿义[1,2] 董家乐[1] 霍丹群[1] 

机构地区：[1]重庆大学生物力学与生物流变学教育部重点实验室生物工程学院,重庆400044 [2]泸州老窖股份有限公司,四川泸州646000

出　　处：《应用化工》2011年第1期23-26,33,共5页Applied Chemical Industry

基　　金：国家自然基金资助项目(30770568);重庆市科委攻关资助项目(2008AB2024;2008AC7037);重庆大学与泸州老窖合作科技项目(0221002605033);重庆大学研究生创新团队(200909B1008);"211工程"研究生开放实验室资助项目(S-09104)

摘　　要：利用自组装方法在水/二甲基亚砜(DMSO)混合溶液体系中使5,10,15,20-四苯基卟啉锰(MnTPP)分子聚集成纳米材料,其最适宜温度为50℃。通过场发射扫描电子显微镜(FE-SEM)对MnTPP纳米材料的表面形貌进行了研究,可获得平均宽度在200 nm左右的均匀分布的锰卟啉纳米环或半环。通过使用紫外可见光谱分析了锰卟啉单体与纳米材料的光学性质的差别,在紫外-可见光谱中,锰卟啉纳米分散体系468 nm处的Soret带吸收峰明显变宽并且红移到477 nm处,其吸光值也明显减小。利用紫外可见光谱对锰卟啉的光学检测性能进行了研究,对比锰卟啉单体和纳米溶液体系对低浓度甲基膦酸二甲酯(DMMP)的检测效果,结果显示锰卟啉纳米溶液体系的检测效果优于单体。The 5,10,15,20-tetraphenylporphyrin manganese（MnTPP） molecule was assembled to be nanoparticles in the water/dimethylsulfoxide（DMSO） mixed solution by self assembly approach.The optimum temperature was 50 ℃.The surface morphology and structure of the nano-MnTPP were characterized by field emission scanning electron microscopy（FE-SEM）.The optical properties of nano-MnTPP were characterized by UV-visible spectrometer.The FE-SEM results indicated that the morphology of well-distributed nano-MnTPP was cricoid or half-cricoid and the average width of the rings was approximately 200 nm.Comparing UV-visible spectras of the monomer with that of the nano-MnTPP,the Soret band of monomer at 468 nm was obviously widened and the absorption spectra of nano-MnTPP had a red-shifted absorption peak at 477 nm.The absorbance of Soret band was significantly reduced.Optical properties of MnTPP for determining a sarin surrogate had been studied by UV-Vis spectra.And the results showed determination results of nano-MnTPP for dimethylmethylphosphonate（DMMP） were much better than that of the monomer.

关 键 词：锰卟啉 甲基膦酸二甲酯 纳米微粒 检测 光学性能 

分 类 号：TB34[一般工业技术—材料科学与工程]