| Title: | HETEROGENEOUS PHOTOCATALYTIC OXIDATION FOR THE REMOVAL OF BISPHENOL A FROM AQUEOUS SOLUTION OVER TiO2/GRAPHENE OXIDE (GO) BASED NANOCOMPOSITES |
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| Authors: | ID Pintar, Albin (Mentor) More about this mentor... 
ID Bortoluzzi, Marco (Mentor) More about this mentor...
ID Veternik, Ana (Author) |
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| Files: |  Ana_Veternik.pdf (2,96 MB)
MD5: 1D8360BDDB24DF8D567D1A4B57CC88BE
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| Language: | English |
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| Work type: | Master's thesis/paper |
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| Typology: | 2.09 - Master's Thesis |
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| Organization: | FZO - Faculty of Environmental Sciences
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| Abstract: | Since water is an essential substance for all life on earth, it is therefore vital to prevent its pollution and to improve wastewater purification processes. There is a vast number of pollutants which can contaminate water, of which bisphenol A (known as an endocrine disruptor) is the pollutant studied herein. In this study, several TiO2/GO based nanocomposites with various GO loadings (2, 4, 10, 20 and 40%) and differently shaped nanocrystalline TiO2 phases (titanate nanotubes (TNTs) and calcined titanate nanotubes (TNTs_500)) were synthesised. All of the nanocomposites were characterised through SEM, UV-vis-DR, TGA, BET, FT-IR and CHNS analyses and were used in the heterogeneous photocatalytic degradation of bisphenol A and compared to the activity of pure TNTs and TNT_500 photocatalysts. All TiO2/GO nanocomposites exhibit much better activity than pure TNTs and TNTs_500 catalysts. The conversion of the BPA was analysed using HPLC and the mineralisation was analysed using a TOC analysis. The best experiment was performed with TNTs_500 + 10% GO composite, which can be attributed to the TiO2 crystalline structure obtained. According to the results obtained, TiO2 + 10% GO was found to exhibit the best degradation ratio, which can be ascribed to the fact that excessive GO can act as a charge carrier recombination centre and promotes the recombination of electron-hole pairs in reduced GO. |
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| Keywords: | heterogeneous photocatalysis, titanium dioxide, graphene oxide, bisphenol A |
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| Place of publishing: | Nova Gorica |
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| Year of publishing: | 2017 |
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| PID: | 20.500.12556/RUNG-2947-a37f1918-3bb3-db67-73b7-2af90c6a5f00 |
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| COBISS.SI-ID: | 4691963 |
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| NUK URN: | URN:SI:UNG:REP:TRYCHOWP |
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| Publication date in RUNG: | 23.02.2017 |
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| Views: | 7446 |
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| Downloads: | 297 |
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