Influence of different carbon monolith preparation parameters on pesticide adsorption
Uticaj parametara dobijanja karbon monolita na adsorpciju pesticida
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The capacity of carbon monolith for pesticide removal from water, and the mechanism of pesticide interaction with the carbon surface were examined. Different carbon monolith samples were obtained by varying the carbonization and activation parameters. In order to examine the role of surface oxygen groups on pesticide adsorption, the carbon monolith surface was functionalized by chemical treatment in HNO3, H2O2 and KOH. The surface properties of the obtained samples were investigated by determination of the Brunauer, Emmett and Teller (BET) surface area, pore size distribution and temperature-programmed desorption. Adsorption of pesticides from aqueous solution onto the activated carbon monolith samples was studied using five pesticides belonging to different chemical groups (acetamiprid, dimethoate, nicosulfuron, carbofuran and atrazine). The presented results show that higher temperature of carbonization and amount of activating agent enable microporous carbon monolith with higher num...bers of surface functional groups to be obtained. The adsorption properties of the activated carbon monolith were more readily affected by the number of surface functional groups than by the specific surface area. Results obtained after carbon monolith functionalization showed that π - π interactions were the driving main force for adsorption of pesticides with an aromatic structure, while acidic groups played an important role in adsorption of pesticides with no aromatic ring in their chemical structure.
U ovom radu je ispitivan kapacitet uzoraka karbon monolita za adsorpciju pesticida, kao i mehanizam interakcije pesticida sa površinom ugljeničnog materijala. Različiti uzorci karbon monolita dobijeni su variranjem parametara karbonizacije i aktivacije. U cilju ispitivanja uloge površinskih kiseoničnih grupa u adsorpciji pesticida izvršena je funkcionalizacija površine tretiranjem sa HNO3, H2O2 i KOH. Dobijeni uzorci okarakterisani su određivanjem specifične površine i raspodele pora, kao i metodom temperaturno-programirane desorpcije. Za ispitivanje adsorpcije pesticida iz vodenih rastvora korišćena je smeša pet pesticida koji pripadaju različitim hemijskim grupama (acetamiprid, dimetoat, nikosulfuron, karbo- furan i atrazin). Prikazani rezultati ukazuju na to da povećanje temperature karbonizacije, kao i udela aktivacionog agensa, omogućavaju dobijanje mikroporoznog karbon monolita sa većim sadržajem površinskih kiseoničnih grupa. Utvrđeno je da površinske kiseonične grupe imaju domi...nantan uticaj na adsorpcione karakteristike aktiviranih uzoraka. Dobijeni rezultati nakon funkcionalizacije površine karbon monolita pokazuju da π - π interakcije predstavljaju glavnu pokretačku silu za adsorpciju pesticida sa aromatičnom strukturom, dok kisele površinske grupe imaju vodeću ulogu u adsorpciji alifatičnih pesticida.
Кључне речи:
carbon monolith / activation / surface properties / adsorption / pesticidesИзвор:
Journal of the Serbian Chemical Society, 2013, 78, 10, 1617-1632Издавач:
- Serbian Chemical Society, Belgrade
Финансирање / пројекти:
- Развој и примена метода и материјала за мониторинг нових загађујућих и токсичних органских материја и тешких метала (RS-MESTD-Basic Research (BR or ON)-172007)
- Физика и хемија са јонским сноповима (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45006)
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Vukčević, Marija AU - Kalijadis, Ana AU - Babić, Biljana M. AU - Laušević, Zoran AU - Laušević, Mila PY - 2013 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2341 AB - The capacity of carbon monolith for pesticide removal from water, and the mechanism of pesticide interaction with the carbon surface were examined. Different carbon monolith samples were obtained by varying the carbonization and activation parameters. In order to examine the role of surface oxygen groups on pesticide adsorption, the carbon monolith surface was functionalized by chemical treatment in HNO3, H2O2 and KOH. The surface properties of the obtained samples were investigated by determination of the Brunauer, Emmett and Teller (BET) surface area, pore size distribution and temperature-programmed desorption. Adsorption of pesticides from aqueous solution onto the activated carbon monolith samples was studied using five pesticides belonging to different chemical groups (acetamiprid, dimethoate, nicosulfuron, carbofuran and atrazine). The presented results show that higher temperature of carbonization and amount of activating agent enable microporous carbon monolith with higher numbers of surface functional groups to be obtained. The adsorption properties of the activated carbon monolith were more readily affected by the number of surface functional groups than by the specific surface area. Results obtained after carbon monolith functionalization showed that π - π interactions were the driving main force for adsorption of pesticides with an aromatic structure, while acidic groups played an important role in adsorption of pesticides with no aromatic ring in their chemical structure. AB - U ovom radu je ispitivan kapacitet uzoraka karbon monolita za adsorpciju pesticida, kao i mehanizam interakcije pesticida sa površinom ugljeničnog materijala. Različiti uzorci karbon monolita dobijeni su variranjem parametara karbonizacije i aktivacije. U cilju ispitivanja uloge površinskih kiseoničnih grupa u adsorpciji pesticida izvršena je funkcionalizacija površine tretiranjem sa HNO3, H2O2 i KOH. Dobijeni uzorci okarakterisani su određivanjem specifične površine i raspodele pora, kao i metodom temperaturno-programirane desorpcije. Za ispitivanje adsorpcije pesticida iz vodenih rastvora korišćena je smeša pet pesticida koji pripadaju različitim hemijskim grupama (acetamiprid, dimetoat, nikosulfuron, karbo- furan i atrazin). Prikazani rezultati ukazuju na to da povećanje temperature karbonizacije, kao i udela aktivacionog agensa, omogućavaju dobijanje mikroporoznog karbon monolita sa većim sadržajem površinskih kiseoničnih grupa. Utvrđeno je da površinske kiseonične grupe imaju dominantan uticaj na adsorpcione karakteristike aktiviranih uzoraka. Dobijeni rezultati nakon funkcionalizacije površine karbon monolita pokazuju da π - π interakcije predstavljaju glavnu pokretačku silu za adsorpciju pesticida sa aromatičnom strukturom, dok kisele površinske grupe imaju vodeću ulogu u adsorpciji alifatičnih pesticida. PB - Serbian Chemical Society, Belgrade T2 - Journal of the Serbian Chemical Society T1 - Influence of different carbon monolith preparation parameters on pesticide adsorption T1 - Uticaj parametara dobijanja karbon monolita na adsorpciju pesticida EP - 1632 IS - 10 SP - 1617 VL - 78 UR - https://hdl.handle.net/21.15107/rcub_technorep_2341 ER -
@article{ author = "Vukčević, Marija and Kalijadis, Ana and Babić, Biljana M. and Laušević, Zoran and Laušević, Mila", year = "2013", abstract = "The capacity of carbon monolith for pesticide removal from water, and the mechanism of pesticide interaction with the carbon surface were examined. Different carbon monolith samples were obtained by varying the carbonization and activation parameters. In order to examine the role of surface oxygen groups on pesticide adsorption, the carbon monolith surface was functionalized by chemical treatment in HNO3, H2O2 and KOH. The surface properties of the obtained samples were investigated by determination of the Brunauer, Emmett and Teller (BET) surface area, pore size distribution and temperature-programmed desorption. Adsorption of pesticides from aqueous solution onto the activated carbon monolith samples was studied using five pesticides belonging to different chemical groups (acetamiprid, dimethoate, nicosulfuron, carbofuran and atrazine). The presented results show that higher temperature of carbonization and amount of activating agent enable microporous carbon monolith with higher numbers of surface functional groups to be obtained. The adsorption properties of the activated carbon monolith were more readily affected by the number of surface functional groups than by the specific surface area. Results obtained after carbon monolith functionalization showed that π - π interactions were the driving main force for adsorption of pesticides with an aromatic structure, while acidic groups played an important role in adsorption of pesticides with no aromatic ring in their chemical structure., U ovom radu je ispitivan kapacitet uzoraka karbon monolita za adsorpciju pesticida, kao i mehanizam interakcije pesticida sa površinom ugljeničnog materijala. Različiti uzorci karbon monolita dobijeni su variranjem parametara karbonizacije i aktivacije. U cilju ispitivanja uloge površinskih kiseoničnih grupa u adsorpciji pesticida izvršena je funkcionalizacija površine tretiranjem sa HNO3, H2O2 i KOH. Dobijeni uzorci okarakterisani su određivanjem specifične površine i raspodele pora, kao i metodom temperaturno-programirane desorpcije. Za ispitivanje adsorpcije pesticida iz vodenih rastvora korišćena je smeša pet pesticida koji pripadaju različitim hemijskim grupama (acetamiprid, dimetoat, nikosulfuron, karbo- furan i atrazin). Prikazani rezultati ukazuju na to da povećanje temperature karbonizacije, kao i udela aktivacionog agensa, omogućavaju dobijanje mikroporoznog karbon monolita sa većim sadržajem površinskih kiseoničnih grupa. Utvrđeno je da površinske kiseonične grupe imaju dominantan uticaj na adsorpcione karakteristike aktiviranih uzoraka. Dobijeni rezultati nakon funkcionalizacije površine karbon monolita pokazuju da π - π interakcije predstavljaju glavnu pokretačku silu za adsorpciju pesticida sa aromatičnom strukturom, dok kisele površinske grupe imaju vodeću ulogu u adsorpciji alifatičnih pesticida.", publisher = "Serbian Chemical Society, Belgrade", journal = "Journal of the Serbian Chemical Society", title = "Influence of different carbon monolith preparation parameters on pesticide adsorption, Uticaj parametara dobijanja karbon monolita na adsorpciju pesticida", pages = "1632-1617", number = "10", volume = "78", url = "https://hdl.handle.net/21.15107/rcub_technorep_2341" }
Vukčević, M., Kalijadis, A., Babić, B. M., Laušević, Z.,& Laušević, M.. (2013). Influence of different carbon monolith preparation parameters on pesticide adsorption. in Journal of the Serbian Chemical Society Serbian Chemical Society, Belgrade., 78(10), 1617-1632. https://hdl.handle.net/21.15107/rcub_technorep_2341
Vukčević M, Kalijadis A, Babić BM, Laušević Z, Laušević M. Influence of different carbon monolith preparation parameters on pesticide adsorption. in Journal of the Serbian Chemical Society. 2013;78(10):1617-1632. https://hdl.handle.net/21.15107/rcub_technorep_2341 .
Vukčević, Marija, Kalijadis, Ana, Babić, Biljana M., Laušević, Zoran, Laušević, Mila, "Influence of different carbon monolith preparation parameters on pesticide adsorption" in Journal of the Serbian Chemical Society, 78, no. 10 (2013):1617-1632, https://hdl.handle.net/21.15107/rcub_technorep_2341 .