Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/122493
Title: ENHANCED PHOTOCATALYTIC HYDROGEN PRODUCTION THROUGH BROADBAND SOLAR SPECTRUM ABSORPTION
Authors: PEH KANGNUO CONNOR
Keywords: photocatalysis, hydrogen, nanomaterial, seawater, broadband, prototype
Issue Date: 30-Sep-2015
Citation: PEH KANGNUO CONNOR (2015-09-30). ENHANCED PHOTOCATALYTIC HYDROGEN PRODUCTION THROUGH BROADBAND SOLAR SPECTRUM ABSORPTION. ScholarBank@NUS Repository.
Abstract: VARIOUS TIO<SUB>2</SUB> NANOSTRUCTURES ARE SYNTHESIZED IN THIS WORK AND THE EFFICIENCIES IN THE FORM OF PHOTOCATALYTIC H<SUB>2</SUB> GENERATION WERE EXAMINED. STRATEGIES WERE EMPLOYED TO REDUCE THE RECOMBINATION OF ELECTRON AND HOLE PAIRS, FIRSTLY BY CO-CATALYST LOADING. CUO NANOPARTICLES WERE LOADED ONTO TIO<SUB>2</SUB> NANOSTRUCTURES AND A MARKED IMPROVEMENT IN H<SUB>2</SUB> PRODUCTION WAS OBSERVED. A NEW STRATEGY TO IMPROVE THE EFFICIENCY OF H<SUB>2</SUB> GENERATION BY EMPLOYING HEAT TO INCREASE THE HOLE SCAVENGING ACTIVITY OF SACRIFICIAL REAGENTS, AND THUS PREVENT RECOMBINATION. HEAT WAS GENERATED FROM BROADBAND ABSORPTION OF UNUTILIZED WAVELENGTHS FROM THE SOLAR SPECTRUM, AND A WORKING PROTOTYPE WAS SHOWN UNDER REAL SUN TO DEMONSTRATE THE FEASIBILITY OF THIS WORK. IN ORDER FOR PRACTICAL H<SUB>2</SUB> GENERATION TO OCCUR, SEAWATER WAS USED AS FEEDSTOCK. THE FINAL WORKING PROTOTYPE WAS TESTED UNDER THE SUN AND WAS SHOWN TO BE ABLE TO INCREASE THE H<SUB>2</SUB> PRODUCTION EFFIC
URI: http://scholarbank.nus.edu.sg/handle/10635/122493
Appears in Collections:Ph.D Theses (Open)

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