欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
通过化学方法合成了疏水性金属有机复合物双（水杨醛）邻苯二胺席夫碱铁（Fe-bis-Schiff-base-salicy-laldehyde-o-phenylenediamine,Fe-SPA）.在水溶性介质体系中,以Fe-SPA疏水特性作为异相光催化剂降解有毒有机污染物,在pH=7.20介质及可见光（λ〉420 nm）照射下,通过Fe-SPA活化H2O2降解有毒有机污染物罗丹明B（RhB）、亚甲基蓝（MB）和2,4-二氯苯酚（2,4-DCP）,研究了Fe-SPA的光催化特性.在实验条件下,反应150 min,RhB褪色完全;反应300 min,MB褪色完全;反应10 h,2,4-DCP降解率达到65%.采用电子顺磁共振（ESR）跟踪测定活性氧化物种,检测到催化体系中产生的高氧化活性羟基自由基.通过RhB体系降解过程中的紫外-可见光谱和红外光谱分析表明,目标底物可有效降解且最终转化为胺类和羧酸类小分子.在水溶性介质体系中,Fe-SPA以疏水特性作为异相光催化剂具有良好的稳定性,循环使用5次后,光催化活性基本稳定.
英文摘要：
A hydrophobic iron（Ⅲ） Schiff base complex,Fe-bis-Schiff-base-salicylaldehyde-o-phenylenediamine（Fe-SPA）,was prepared by chemical synthetic method.In a water-soluble medium,the hydrophobic Fe-SPA could be used as a heterogeneous photocatalyst to degradate organic pollutants.The photo-catalytic degradation of rhodamine B（RhB）,methylene blue（MB） and 2,4-dichlorophenol（2,4-DCP） under the visible light irradiation and neutral condition（at pH=7.20） were used as probe reactions to evaluate the photo-catalytic activities of Fe-SPA.Under the optimal conditions,RhB and MB were decolored completely after 150 and 300 min,respectively,and DCP was removed more than 65% in 10 h.ESR results showed that the highly reactive oxygene species ／5OH was produced in the reaction.IR and UV-Vis spectra results indicated that RhB was degraded to small molecules,such as amine substances and carbonyl（carboxyl） compounds.In a water-soluble medium,the hydrophobic Fe-SPA which was used as a heterogeneous photocatalyst was stable after 5 recycles.
同期刊论文项目
同项目期刊论文
Aerobic Swimming Performance of Juvenile Largemouth Bronze Gudgeon (Coreius guichenoti) in the Yangt
Aerobic swimming performance of juvenile Schizothorax chongi (Pisces, Cyprinidae) in the Yalong Rive
Development and validation of a hydrophilic interaction liquid chromatographic method for determinat
Preparation of CdS nanoparticles with reverse micelle method and photo-degradation of malachite cree
位置：