Intenzifikacija fotorazgradnje imidakloprida primjenom permanentnog magneta

master's thesis

• Title (english): Intensification of the photodegradation process of imidacloprid with the aid of a permanent magnet
• Author: Marko Jajčević
• Mentor: Vanja Kosar (mentor)
• Committee member: Vanja Kosar (predsjednik povjerenstva)
• Committee member: Vesna Tomašić (član povjerenstva)
• Committee member: Mirela Leskovac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2023-09-28, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

S obzirom da živimo u svijetu koji se iznimno brzo razvija s aspekata tehnologije i industrije, važno je da grane zaštite okoliša s inovativnim rješenjima mogu pratiti taj tempo, a sve u svrhu očuvanja Zemlje i svih prirodnih resursa. Sve više smo žrtve svojih vlastitih postupaka, a kada je riječ o onečišćenju, jedan od značajnijih onečišćivala u okolišu su upravo pesticidi koji se koriste kako bi se suzbile štetočine i očuvala hrana. Napredni oksidacijski procesi nova su rješenja koja omogućavaju suzbijanje štetnih učinaka prisutnosti pesticida u okolišu, a posebno se može istaknuti fotokatalitička razgradnja. Primjenjuje li se u procesu TiO2 i koristi li se izobilje UV zračenja prisutnog u atmosferi, uz dodatne optimizacije, moguće je reakcije razgradnje onečišćenja provesti s minimalnim nastankom štetnih nusprodukata. U teorijskom pregledu ovog rada biti će nešto više rečeno o pesticidima, točnije imidaklopridu te o zakonskoj regulativi vezano za pesticide na razini EU. Nadalje, biti će detaljno prikazan proces fotokatalize s TiO2 kao fotokatalizatorom te će biti dan pregled fotokatalitičkih reaktorskih sustava. Kao važan dio fotokatalitičkog procesa navodi se i izvor zračenja, što će biti detaljno opisano te će biti riječi o utjecaju magnetskog polja kao potencijalnom pomagalu u fotokatalitičkom procesu. Kroz eksperimentalni dio provodit će se intenzifikacija fotorazgradnje imidakloprida primjenom permanentnog magneta, pri čemu će u ovom radu biti dani svi dobiveni rezultati, ali i predstavljena rasprava na temelju dobivenih podataka.
Na kraju, svi aspekti rada biti će sažeti u kratkom i jasnom zaključku.

Abstract (english)

Given the fact that we live in a world that is developing extremely fast technologically and industrially, it is important that the environmental protection industry can keep up with this pace with innovative solutions to preserve the earth and all natural resources. We are becoming more and more victims of our own actions, and when it comes to pollution, it is precisely the pesticides used for pest control and food preservation that are one of the most important pollutants in the environment. Advanced oxidation processes are new solutions that allow to combat the harmful effects of the presence of pesticides in the environment, and photocatalytic decomposition can be particularly highlighted. When TiO2 is used in the process and the abundant UV radiation in the atmosphere is utilized, with additional optimizations it is possible to perform pollutant decomposition reactions with minimal formation of harmful byproducts. In the theoretical overview of this article, a little more is said about pesticides, especially imidacloprid, and about the legal regulations related to pesticides at the EU level. In addition, the process of photocatalysis with TiO2 as photocatalyst is presented in detail and an overview of photocatalytic reactor systems is given. UV radiation is mentioned and described in detail as an important component of the photocatalytic process, and the magnetic field is discussed as a possible tool in the photocatalytic process. In the experimental part, the intensification of the photocatalytic degradation of imidacloprid is carried out using a permanent magnet, and in this paper all the obtained results are listed, and a discussion based on the obtained data is presented.
At the end, all aspects of the work are summarized in a brief and clear conclusion.

• Keywords: pesticidi; fotokataliza; titanijev dioksid; ultraljubičasto zračenje; magnet
• Keywords (english): pesticides; photocatalysis; titanium dioxide; ultraviolet radiation; magnet
• Language: croatian
• URN:NBN: urn:nbn:hr:149:323802
• Study programme: Title: Environmental Engineering - Graduate study; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka ekoinženjerstva (sveučilišni/a magistar/magistra inženjer/inženjerka ekoinženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-11-24 11:28:31