In this work expanded graphite (EG) and carbonized rice husk (CRH) were obtained by heat treatment at different temperatures and by using different activating conditions. The samples were tested as sorbent for oil in water. The oil removal efficiency of carbonized rice husks and expanded graphite, were studied as an adsorbent for the removal of emulsified oils from wastewater. Results showed that the oil removal efficiency increased to 10-15 % in the case of EG samples after base leaching. As concerns as the carbonized rice husk samples the adsorption capacities are similar and no particular variation with the activation temperature are detected. As a general result the carbonization process induced an increase of the adsorption capacities. Samples were purified and characterized by SEM-EDAX, FTIR, elemental analysis, Proximate analysis and ICP MS.
SORPTION ABILITY OF MODIFIED NANO-CARBON MATERIALS / Kudaibergenov, Kenes Kakimovich; Nysanbayeva, Gulnura Ryskulovna; Ongarbayev, Yerdos Kalimullaevich; Mansurov, Zulhair Aimukhamedovich; Di Capua, R.; Alfe, M.; Gargiulo, V.. - In: IZVESTIA NACIONALʹNOJ AKADEMII NAUK RESPUBLIKI KAZAHSTAN. SERIA HIMII I TEHNOLOGII. - ISSN 2224-5286. - 3:435(2019), pp. 63-70. [10.32014/2019.2518-1491.31]
SORPTION ABILITY OF MODIFIED NANO-CARBON MATERIALS
Di Capua, R.;
2019
Abstract
In this work expanded graphite (EG) and carbonized rice husk (CRH) were obtained by heat treatment at different temperatures and by using different activating conditions. The samples were tested as sorbent for oil in water. The oil removal efficiency of carbonized rice husks and expanded graphite, were studied as an adsorbent for the removal of emulsified oils from wastewater. Results showed that the oil removal efficiency increased to 10-15 % in the case of EG samples after base leaching. As concerns as the carbonized rice husk samples the adsorption capacities are similar and no particular variation with the activation temperature are detected. As a general result the carbonization process induced an increase of the adsorption capacities. Samples were purified and characterized by SEM-EDAX, FTIR, elemental analysis, Proximate analysis and ICP MS.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
