Fotokatalizatori na bazi ugljikovog nitrida grafitne strukture

undergraduate thesis

• Title (english): Photocatalysts based on graphitic carbon nitride
• Author: Marko Mikulić
• Mentor: Lidija Ćurković (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2025-02-24, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering; General Mechanical Engineering (Construction)

Abstract

Ugljikov nitrid grafitne strukture (g-C₃N₄) polimerni je materijal koji se smatra atraktivnim i učinkovitim fotokatalizatorom. Aktivira se vidljivim izvorom zračenja zbog njegove vrijednosti energije energetskog procjepa, ne sadrži metale, kemijski je inertan i ima visoku fizikalno-kemijsku i fotokemijsku stabilnost.
Međutim, fotokatalitička aktivnost čistog g-C3N4 ograničena je zbog brze rekombinacije i nedovoljne separacije fotoinduciranih parova elektrona i šupljina i relativno male specifične površine. U ovom radu je istražena mogućnost uklanjanja navedenih nedostataka.
Također, istražit će se mogućnost primjene navedenog fotokatalizatora za primjenu u proizvodnji vodika (H₂), koristi se za redukciju CO₂ u ugljikovodike i degradaciju organskih mikroonečišćavala.

Abstract (english)

Graphitic carbon nitride (g-C₃N₄) is a polymeric material considered as an attractive and efficient photocatalyst. It is activated by the visible part of the light spectrum and possesses unique properties, such as an appropriate band gap, metal-free composition, chemical inertness, and high physicochemical stability.
However, the photocatalytic activity of pure g-C₃N₄ is limited due to rapid recombination and insufficient separation of photoinduced electron-hole pairs, a restricted visible light absorption range, and a relatively small specific surface area. Therefore, this study will analyze the possibilities and effectiveness of its modifications.
g-C₃N₄ is primarily used as a photocatalyst in energy and environmental applications. It is effective for hydrogen (H₂) production, CO₂ reduction, and pollutant degradation.

• Keywords: fotokataliza; ugljikov nitrid grafitne strukture; fotokatalitička proizvodnja vodika; fotoredukcija CO₂
• Keywords (english): photocatalysts; graphitic carbon nitride; photoreduction of CO₂
• Language: croatian
• URN:NBN: urn:nbn:hr:235:922228
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2025-02-20 18:54:39