Priprava i karakterizacija ugljikovoga nitrida grafitne strukture

master's thesis

• Title (english): Preparation and characterization of graphitic carbon nitride
• Author: Ivan Petrinšak
• Mentor: Lidija Ćurković (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2024-01-25, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

U ovom radu pripravljeni su uzorci ugljikovog nitrida grafitne strukture (g-C3N4) toplinskom polimerizacijom dva prekursora. Za sintezu šest uzoraka g-C3N4 korišteni su prekursori urea i melamin. Tri uzorka g-C3N4 sintetizirana su u električnoj peći iz uree toplinskom obradom pri 450, 500 i 550 °C te još tri uzorka g-C3N4 sintetizirana su iz melamina na isti način.
Za karakterizaciju sintetiziranih uzoraka korištena je rendgenska difrakcijska analiza (XRD), spektroskopija difuzne refleksije (DRS), infracrvena spektroskopija s Fourierovom transformacijom (FTIR) te Brunauer, Emmett i Teller (BET) analiza specifične površine.
Cilj rada bio je ispitati može li se iz navedenih prekursora, pri navedenim temperaturama, toplinskom polimerizacijom sintetizirati g-C3N4 te koji režim toplinske polimerizacije je najpogodniji.

Abstract (english)

In this paper, samples of graphitic carbon nitride (g-C3N4) were prepared by thermal polymerization of two percursors. Precursors melamine and urea were used for the synthesis of six samples of g-C3N4. Three samples of g-C3N4 were synthesized in electric furnace by thermal treatment of urea at 450, 500 and 550 °C, likewise three more samples of g-C3N4 were synthesized from melamine.
For the characterization of synthesized samples the following techniques were used: x-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), Fourier-transform infrared spectroscopy (FTIR) and Brunauer-Emmett-Teller (BET) surface area analysis.
The aim of this study was to examine whether it is possible to synthesize g-C3N4 from mentioned precursors at mentioned temperatures by thermal polymerization, and which regime of thermal polymerization is the most suitable.

• Keywords: ugljikov nitrid grafitne strukture; toplinska polimerizacija; karakterizacija
• Keywords (english): graphitic carbon nitride; thermal polymerization; characterization
• Language: croatian
• URN:NBN: urn:nbn:hr:235:505969
• Project: Number: IP-2022-10-4400; Title: Razvoj polimera s otiskom molekula za primjenu u analizi farmaceutika i tijekom naprednih postupaka obrade voda; Acronym: MIPdePharma; Leader: Dragana Mutavdžić Pavlović; Jurisdiction: Croatia; Funder: HRZZ; Funding stream: IP
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka strojarstva (magistar/magistra inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2024-01-23 19:23:34