Your browser does not support JavaScript!

Home    Perovskite semiconducting nanomaterials for hydrogen evolution  

Results - Details

Add to Basket
[Add to Basket]
Identifier 000438428
Title Perovskite semiconducting nanomaterials for hydrogen evolution
Alternative Title Ημιαγώγιμα νανοϋλικά περοβγκιτών για παραγωγή υδρογόνου
Author Φάκα, Βασιλική
Thesis advisor Μπίνας,
Reviewer Αρματάς, Γεράσιμος
Ρεμεδιάκης, Ιωάννης
Στούμπος, Κωνσταντίνος
Abstract The aim of this master thesis is the synthesis and characterization of novel photocatalysts combined by metal titanate rods and carbon nitride nanosheets (CNNs), in order to be used for photocatalytic water splitting, under visible light for H2 production. The metal titanate rods are ilmenite type materials (MTiO3) with M = Co, Ni, Zn, Mg, which traditionally are not active photocatalysts for the H2 production. The enormous advantages of transition metal titanates consist of their superior physicochemical properties, their low production cost, their simple and scalable synthesis and their low toxicity. These properties render them interesting to study as functional materials and attempt to develop them towards applications. Moreover, their tunable bandgap, their photo stability and their corrosion resistance in aqueous solutions make them good candidates for photocatalytic water splitting reactions. Therefore, the combination of transition metal titanates, with other, photoactive materials, such as CNNs, in order to make them active photocatalysts under visible light is the preferred method to exploit them. The emphasis of this master thesis is given to the synthetic procedure of the novel material and to the morphological, structural and optical properties. Therefore, all the synthesized powders were analyzed by powder X-Ray Diffractometry (PXRD), Scanning Electron Microscopy (SEM), Energy Dispersive X-Ray Spectroscopy (EDS) and UV-Vis-NIR spectroscopy. Finally, the powders were tested in photocatalytic water splitting for solar H2 production, with the combination of metal titanates with CNNs to have increased the activity of the individual materials.
Language English
Subject Photocatalysis
Watter splitting
Διάσπαση νερού
Φωτοκατάλυση
Issue date 2021-03-26
Collection   School/Department--School of Sciences and Engineering--Department of Materials Science and Technology--Post-graduate theses
  Type of Work--Post-graduate theses
Views 391

Digital Documents
No preview available

Download document
View document
Views : 0