Kompozitni fotokatalizatori za fotoredukciju CO2 do korisnih produkata

undergraduate thesis

• Title (english): Composite photocatalysts for photoreduction of CO2 to useful products
• Author: Vana Mateša
• Mentor: Vanja Kosar (mentor)
• Committee member: Vanja Kosar (predsjednik povjerenstva)
• Committee member: Vesna Tomašić (član povjerenstva)
• Committee member: Zvonimir Katančić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2023-09-13, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

Emisija CO₂ u atmosferu danas je svjetski problem jer je CO₂ jedan od plinova koji pridonose globalnom zatopljenju. Kao rješenje navedenog problema nudi se fotokatalitička redukcija CO₂ do korisnih produkata kao što su metan i metanol, a dan je niz primjera istraživanja različitih fotokatalizatora i metoda u svrhu jednog cilja- dobivanje alternativnog goriva koji će pridonjeti smanjenju količine CO₂. Iako je fotokatalitička redukcija CO₂ obećavajuća tehnika za redukciju do nefosilnih goriva i ostalih vrijednih spojeva, proces je termodinamički nepovoljan i nema tendenciju odvijati se spontano jer je ΔG>0 , a uz to i složenost samog reakcijskog mehanizma pridonosi nemogućnosti primjene ove metode za komercijalne svrhe. Kao najbolji način za redukciju CO₂ nudi se korištenje sunčeve energije jer pruža učinkovit način pohranjivanja energije. U ovome radu opisan je razvoj solarnih fotoreaktora za povećanje prinosa pri proizvodnji goriva. Posebna pozornost dana je općim metodama fotokatalitičke pretvorbe CO₂ koje pokreće sunčeva energija kako bi se onda odabrala prikladna metodologija solarne fotoredukcije CO₂ u metanol.

Abstract (english)

Emission of CO₂ into the atmosphere is a worldwide problem today because CO₂ is one of the gases that contribute to global warming. Photocatalytic reduction of CO₂ to useful products such as methane and methanol is offered as a solution to the mentioned problem, and a series of research examples of different photocatalysts and methods are given for the purpose of one goal - obtaining an alternative fuel that will contribute to the reduction of the amount of CO₂. Although the photocatalytic reduction of CO₂ is a promising technique for reduction to non-fossil fuels and other valuable compounds, it is a process with unfavorable thermodynamics and does not tend to take place spontaneously because ΔG>0 and the complexity of the reaction mechanism itself contributes to the impossibility of applying this method for commercial purposes. The best way to reduce CO₂ is to use solar energy because it provides an efficient mode for storing energy. This paper describes the development of solar photoreactors for increasing the yield of fuel production. Special attention is given to the general methods of photocatalytic conversion of CO₂ driven by solar energy in order to determine the suitable methodology for solar photoreduction of CO₂ to methanol.

• Keywords: fotokataliza; redukcija CO₂; fotokatalizator; solarni fotoreaktor; proizvodnja metanola
• Keywords (english): photocatalysis; carbon dioxide reduction; photocatalyst; solar photoreactors; methanol production
• Language: croatian
• URN:NBN: urn:nbn:hr:149:641944
• Study programme: Title: Chemical Engineering - Undergraduate study; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2025-12-31
• Created on: 2023-09-14 12:20:10