Synthesis of cobalt (II) phthalocyanine complex with axial isonicotinic acid ligand: Molecular engineering of a photocatalyst for the degradation of benzene as a representative volatile organic compound
Date of Publication
2014
Document Type
Master's Thesis
Degree Name
Master of Science in Chemistry
College
College of Science
Department/Unit
Chemistry
Thesis Adviser
Derrick Ethelbert Yu
Defense Panel Chair
Janairo C. Gerardo
Defense Panel Member
Michael Angelo S. Promentilla
Nancy Lazaro-Llanos
Abstract/Summary
Axial modification for cobalt (II) phthalocyanine (CoPc) was done to enhance the catalytic activity of TiO2 by photodegrading benzene using indoor fluorescent lighting. The isonicotinic acid (IsA) ligand attached to the axial position of CoPc produced covalent anchor to TiO2 basing from the nanostructures synthesized using horizontal vapour phase crystal growth technique. Electrospray ionization mass spectrometry, differential thermal analysis, and geometry optimization calculations proves the existence of IsA occupying two axial positions in CoPc. Photodegradation analysis showed improvement of CoPc(IsA)-TiO2 on degradation of benzene by increasing the rate constant, as compared to plain TiO2 and CoPc-TiO2. GC-MS analysis showed oxidation products of benzene adsorbed on TiO2 surface which are hydrocarbon clusters synthesized from series of free radical reactions. The study provides usage of axial modification for facile synthesis of sensitizers for TiO2 for use in photocatalytic degradation of indoor air pollutants, specifically volatile organic compounds.
Abstract Format
html
Language
English
Format
Electronic
Accession Number
CDTG005559
Shelf Location
Archives, The Learning Commons, 12F Henry Sy Sr. Hall
Physical Description
leaves ; 4 3/4 in.
Recommended Citation
Valinton, J. A. (2014). Synthesis of cobalt (II) phthalocyanine complex with axial isonicotinic acid ligand: Molecular engineering of a photocatalyst for the degradation of benzene as a representative volatile organic compound. Retrieved from https://animorepository.dlsu.edu.ph/etd_masteral/4616