Elektrokemijska karakterizacija kompozita TiO2/SnS2 i njegova primjena u fotoelektrokatalizi

master's thesis

• Title (english): Electrochemical characterisation of TiO2/SnS2 composite and its application in photoelectrocatalysis
• Author: Mia Tominac
• Mentor: Marijana Kraljić Roković (mentor)
• Committee member: Marijana Kraljić Roković (predsjednik povjerenstva)
• Committee member: Zoran Mandić (član povjerenstva)
• Committee member: Stjepan Milardović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2021-09-15, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

Cilj eksperimenata provedenih u sklopu ovoga rada bio je prikupiti podatke na temelju kojih će se usporediti fotoelektrokatalitička svojstva triju različitih materijala, TiO2, SnS2 i TiO2/SnS2 kompozita. Mjerenja su provedena u vodenim otopinama NaCl koncentracije
0,1 mol dm^-3 bez dodatka i s dodatkom diklofenaka, salicilne kiseline ili memantin hidroklorida u rasponu koncentracija 0,083-0,222 mmol dm^-3. Za fotoaktivaciju elektrodnog materijala upotrijebljeno je UV odnosno LED zračenje. U tu svrhu korištene su različite metode karakterizacije: linearna polarizacija, elektrokemijska impedancijska spektroskopija, Mott- Schottky analiza i mjerenje potencijala otvorenog kruga. Na osnovu dobivenih rezultata izveli su se zaključci o fotokatalitičkoj učinkovitosti pojedinog materijala u prisutnosti farmaceutika. Provedena istraživanja su značajna za primjenu TiO2, SnS2 i TiO2/SnS2 u obradi otpadnih voda koje sadrže farmaceutske spojeve.

Abstract (english)

The aim of the experiments conducted as part of this research was to collect and compare data related to the photoelectrocatalytic properties of three different photocatalytic materials, TiO2, SnS2 and TiO2/SnS2 composite. Measurements were performed in aqueous NaCl solutions with concentration of 0.1 mol dm^-3 without and with addition of diclofenac, salicylic acid or memantine hydrochloride in the concentration range 0.083-0.222 mmol dm^-3. UV or LED radiation was used for photoactivation of the electrode material. Different characterization methods were used: linear polarization, electrochemical impedance spectroscopy, Mott- Schottky analysis, and open-circuit potential measurement. Based on the results, conclusions were made about the photocatalytic efficiency of these materials in the presence of pharmaceuticals. The conducted measurements are important for the application of TiO2, SnS2 and TiO2/SnS2 in the treatment of wastewater containing pharmaceutical compounds.

• Keywords: diklofenak; fotoelektrokataliza; fotokatalizator; memantin hidroklorid; salicilna kiselina
• Keywords (english): diclofenac; photoelectrocatalysis; photocatalyst; memantine hydrochloride; salicylic acid
• Language: croatian
• URN:NBN: urn:nbn:hr:149:698499
• Project: Number: IP-2018-01-1982; Title: Nano-katalizatori aktivirani Sunčevim zračenjem u tehnologijama zaštite okoliša; Title: Nano-sized solar-active catalysts for environmental technologies; Acronym: NaSCEnT; Leader: Hrvoje Kušić; Jurisdiction: Croatia; Funder: HRZZ; Funding stream: IP
• Project: Number: KK.01.1.1.04.0001; Title: Pročišćavanje vode i dobivanje energije korištenjem novih kompozitnih materijala uz Sunčevo zračenje; Leader: Hrvoje Kušić; Jurisdiction: eu; Funder: EC; Funding stream: KF
• Study programme: Title: Applied Chemistry - Graduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry; Course: Advanced materials and technologies; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra primijenjene kemije (magistar/magistra primijenjene kemije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2023-04-13 12:02:12