Zinc Porphyrin-Functionalized Fullerenes for the Sensitization of Titania as a Visible-Light Active Photocatalyst: River Waters and Wastewaters Remediation
Zinc Porphyrin-Functionalized Fullerenes for the Sensitization of Titania as a Visible-Light Active Photocatalyst: River Waters and Wastewaters Remediation
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DOI：
10.3390/molecules24061118
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发表时间：
2019-03-02
期刊：
影响因子：
4.6
通讯作者：
Echegoyen, Luis
中科院分区：
文献类型：
--
作者：
Regulska, Elzbieta;Rivera-Nazario, Danisha Maria;Echegoyen, Luis
合成了锌卟啉功能化富勒烯[C60]衍生物，并用于制备二氧化钛基复合材料。通过电化学方法测定了光敏剂的电化学性质和HOMO、LUMO能级。使用拉曼和红外技术研究二氧化钛表面上存在的化学基团。采用漫反射紫外-可见光谱（DRS）测试了复合材料的吸收性能。使用动态光散射（DLS）和电泳光散射（ELS）技术测定zeta电位和聚集体尺寸。基于Brunauer-Emmett-Teller（BET）等温线估计表面积。以苯酚和亚甲基蓝为模型污染物，测试了光催化剂的光催化活性。具有最高光催化潜力的复合材料（1/TiO 2）用于河流和废水的修复。通过LC-UV/Vis-MS/MS技术鉴定了光降解中间体。
Zinc porphyrin-functionalized fullerene [C60] derivatives have been synthesized and used to prepare titania-based composites. The electrochemical properties and HOMO and LUMO levels of the photosensitizers were determined by electrochemical measurements. Raman and IR techniques were used to study chemical groups present on the titania surface. Absorption properties of the composites were measured in the solid state by diffuse reflectance UV-Vis spectra (DRS). The zeta potential and aggregate sizes were determined using dynamic light scattering (DLS) and electrophoretic light scattering (ELS) techniques. Surface areas were estimated based on Brunauer-Emmett-Teller (BET) isotherms. The photocatalytic activity of the photocatalysts was tested using two model pollutants, phenol and methylene blue. The composite with the highest photocatalytic potential (1/TiO2) was used for river and wastewater remediation. The photodegradation intermediates were identified by LC-UV/Vis-MS/MS techniques.