20.500.12556/DKUM-77427 Preučevanje adsorpcijskih lastnosti šungita diplomsko delo univerzitetnega študijskega programa I. stopnje Study of adsorption properties of shungite Cilj diplomske naloge je preučiti adsorpcijske lastnosti šungita za adsorpcijo NO3, baker in lipofilnih snovi. V ta namen smo preučili karakteristike samega šungita. Rezultati sestave vzorca šungita so pokazali, da je vzorec vseboval 98 % ogljika. Specifična površina je znašala 11 m2/g. Meritve zeta potenciala so pokazale, da je na površini šungita potencial 18 mV, kar je blizu 0 in pomeni, da je površina rahlo pozitivno nabita. Izmerili smo tudi porazdelitev delcev in ugotovili, da so najbolj zastopani agregati šungita velikosti 900 nm. S Fourerovo transformirano infrardečo (FTIR) spektroskopijo smo dokazali, da šungit vsebuje dva tipa furelenov: C_60 in C_70. V diplomski nalogi smo tako ugotovili, da je šungit zelo dober adsorbent. Pri nitratu in težkohlapnih lipofilnih snoveh se je pokazal kot zelo učinkovit z adsorpcijo nad 90 %. Pri bakru je prišlo do adsorpcije, vendar je bila ta zelo počasna in tudi manj učinkovita. S študijami adsorpcije v pitni vodi smo v primerjavi z modelnimi raztopinami dobili nekoliko slabše učinkovitosti adsorpcije. Rezultati adsorpcije lipofilne snovi iz odpadne vode so pokazali zelo dobro adsorpcijsko sposobnost šungita. The aim of the thesis is the study of adsorption properties of shungite for NO_3^-, copper and lipophilic substances. For this purpose, we studied the characteristics of shungite itself (composition, specific surface area, zeta potential and FTIR spectroscopy). We first did a characterization of our shungite pattern. The results showed that the sample contained 98 % carbon and that its specific surface area was 11 m2/g. Measurement of the zeta potential on the surface of shungite showed value 18 mV which is close to 0 and means that the shungite surface is slightly positive charged. We also measured the particle size distribution and found that shungite aggregated and the particles were measured at 900 nm in size. Fourier-transform infrared (FTIR) spectroscopy proved that shungite contains two types of furelenes C_60 in C_70. In the diploma thesis we found that shungite is a very good adsorbent. In adsorption study of nitrate and low-volatile lipophilic substances, it has been shown that shungit is very effective with adsorption above 90 %. Copper adsorption occurred, but it was very slow and also less efficient. With adsorption studies in drinking water, we obtained somewhat poorer adsorption efficiencies compared with the model solutions. The results showed that removal efficiency of lipophilic substances from wastewater onto shungite was high. šungit adsorpcija adsorpcijski modeli karakterizacija shungite adsorption adsorption models characterization true true false [A. Brumen] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2020-08-31 11:30:07 2020-10-08 13:24:48 2022-08-09 15:33:01 2020-10-28 03:12:45 2020 0 Maribor 0 Maribor IX, 30 str. 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66.081.2:548(043.2) 34053123 URN:SI:UM:DK:YAAVFXDS UN_Brumen_Adam_2020.pdf UN_Brumen_Adam_2020.pdf 1 867339B017D2B28277CAD60C61E1B038 792f372d663c99cc71036a9120662ce73dc80522b2c2e3972fb9d8a9eb1fbad1 df82680e-7c11-11eb-bb7a-00155d0001ca 20.500.12556/dkum/22e35cf9-d2a1-4afb-a36c-30cb7b38c636 https://dk.um.si/Dokument.php?lang=slv&id=146223 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0