Zinc Porphyrin-Functionalized Fullerenes for the Sensitization of Titania as a Visible-Light Active Photocatalyst: River Waters and Wastewaters Remediation.
Elzbieta RegulskaDanisha Maria Rivera-NazarioJoanna KarpinskaMarta Eliza Plonska-BrzezinskaLuis EchegoyenPublished in: Molecules (Basel, Switzerland) (2019)
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.
Keyphrases
- visible light
- photodynamic therapy
- molecularly imprinted
- solid state
- ms ms
- oxide nanoparticles
- gold nanoparticles
- label free
- electron transfer
- quantum dots
- ionic liquid
- solid phase extraction
- metal organic framework
- human health
- heavy metals
- energy transfer
- risk assessment
- low grade
- density functional theory
- monte carlo
- structure activity relationship