Modification of CaCO3 and CaCO3 pin-coated cellulose paper under supercritical carbon dioxide-ethanol mixture for enhanced NO2 capture
Samo za registrovane korisnike
2022
Autori
Barać, NemanjaBarcelo, Ernest
Stojanović, Dušica
Milovanović, Stoja
Uskoković, Petar
Gane, Patrick
Dimic-Misic, Katarina
Imani, Monireh
Janaćković, Đorđe
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
In this work, we examine two modifications of fine-ground calcium carbonate material (GCC) in order to enhanced sorption of NO2 and subsequent reaction properties toward NO2-/NO3- formation by firstly exposing the GCC to supercritical (sc) CO2 in order to increase particle surface area, a choice specifically made to avoid altering the surface chemistry, and secondly considering the potential advantage of using a surface coupling agent toward NO2. The modification by the coupling agent amino silane (AMEO silane) was applied in a supercritical CO2-ethanol mixture. The samples were characterised before and after modification by field emission scanning electron microscopy (FESEM), specific surface area determination (BET nitrogen adsorption), ATR-FTIR spectroscopy and ion chromatography to reveal the effects of the surface modification(s) on the morphology, surface textural properties and sorption versus reaction properties with NO2. The performance of the treated sorbents for NO2 capture ...was evaluated at room temperature. Results show that reactivity of NO2 with GCC was observed to increase as a function of increased surface area resulting from scCO(2) exposure, but that the presence of AMEO silane on the surface, while enhancing initial adsorption of NO2 was seen subsequently to act to block reactivity. Thus, judicious use of coupling agent can provide desired rapid initial adsorption of the gas, but the goal of long-term CaCO3-consuming reactivity, so as to prolong the uptake of NO2 beyond surface saturation alone, is achieved by increasing surface area while retaining chemical-free exposed CaCO3 surface.
Ključne reči:
NO2 mitigation / Surface modification / AMEO silane / Calcium carbonate / Supercritical CO2Izvor:
Environmental Science and Pollution Research, 2022, 29, 8, 11707-11717
DOI: 10.1007/s11356-021-16503-9
ISSN: 0944-1344
PubMed: 34545521
WoS: 000698152600006
Scopus: 2-s2.0-85115149686
Kolekcije
Institucija/grupa
Inovacioni centarTY - JOUR AU - Barać, Nemanja AU - Barcelo, Ernest AU - Stojanović, Dušica AU - Milovanović, Stoja AU - Uskoković, Petar AU - Gane, Patrick AU - Dimic-Misic, Katarina AU - Imani, Monireh AU - Janaćković, Đorđe PY - 2022 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5007 AB - In this work, we examine two modifications of fine-ground calcium carbonate material (GCC) in order to enhanced sorption of NO2 and subsequent reaction properties toward NO2-/NO3- formation by firstly exposing the GCC to supercritical (sc) CO2 in order to increase particle surface area, a choice specifically made to avoid altering the surface chemistry, and secondly considering the potential advantage of using a surface coupling agent toward NO2. The modification by the coupling agent amino silane (AMEO silane) was applied in a supercritical CO2-ethanol mixture. The samples were characterised before and after modification by field emission scanning electron microscopy (FESEM), specific surface area determination (BET nitrogen adsorption), ATR-FTIR spectroscopy and ion chromatography to reveal the effects of the surface modification(s) on the morphology, surface textural properties and sorption versus reaction properties with NO2. The performance of the treated sorbents for NO2 capture was evaluated at room temperature. Results show that reactivity of NO2 with GCC was observed to increase as a function of increased surface area resulting from scCO(2) exposure, but that the presence of AMEO silane on the surface, while enhancing initial adsorption of NO2 was seen subsequently to act to block reactivity. Thus, judicious use of coupling agent can provide desired rapid initial adsorption of the gas, but the goal of long-term CaCO3-consuming reactivity, so as to prolong the uptake of NO2 beyond surface saturation alone, is achieved by increasing surface area while retaining chemical-free exposed CaCO3 surface. T2 - Environmental Science and Pollution Research T1 - Modification of CaCO3 and CaCO3 pin-coated cellulose paper under supercritical carbon dioxide-ethanol mixture for enhanced NO2 capture EP - 11717 IS - 8 SP - 11707 VL - 29 DO - 10.1007/s11356-021-16503-9 ER -
@article{ author = "Barać, Nemanja and Barcelo, Ernest and Stojanović, Dušica and Milovanović, Stoja and Uskoković, Petar and Gane, Patrick and Dimic-Misic, Katarina and Imani, Monireh and Janaćković, Đorđe", year = "2022", abstract = "In this work, we examine two modifications of fine-ground calcium carbonate material (GCC) in order to enhanced sorption of NO2 and subsequent reaction properties toward NO2-/NO3- formation by firstly exposing the GCC to supercritical (sc) CO2 in order to increase particle surface area, a choice specifically made to avoid altering the surface chemistry, and secondly considering the potential advantage of using a surface coupling agent toward NO2. The modification by the coupling agent amino silane (AMEO silane) was applied in a supercritical CO2-ethanol mixture. The samples were characterised before and after modification by field emission scanning electron microscopy (FESEM), specific surface area determination (BET nitrogen adsorption), ATR-FTIR spectroscopy and ion chromatography to reveal the effects of the surface modification(s) on the morphology, surface textural properties and sorption versus reaction properties with NO2. The performance of the treated sorbents for NO2 capture was evaluated at room temperature. Results show that reactivity of NO2 with GCC was observed to increase as a function of increased surface area resulting from scCO(2) exposure, but that the presence of AMEO silane on the surface, while enhancing initial adsorption of NO2 was seen subsequently to act to block reactivity. Thus, judicious use of coupling agent can provide desired rapid initial adsorption of the gas, but the goal of long-term CaCO3-consuming reactivity, so as to prolong the uptake of NO2 beyond surface saturation alone, is achieved by increasing surface area while retaining chemical-free exposed CaCO3 surface.", journal = "Environmental Science and Pollution Research", title = "Modification of CaCO3 and CaCO3 pin-coated cellulose paper under supercritical carbon dioxide-ethanol mixture for enhanced NO2 capture", pages = "11717-11707", number = "8", volume = "29", doi = "10.1007/s11356-021-16503-9" }
Barać, N., Barcelo, E., Stojanović, D., Milovanović, S., Uskoković, P., Gane, P., Dimic-Misic, K., Imani, M.,& Janaćković, Đ.. (2022). Modification of CaCO3 and CaCO3 pin-coated cellulose paper under supercritical carbon dioxide-ethanol mixture for enhanced NO2 capture. in Environmental Science and Pollution Research, 29(8), 11707-11717. https://doi.org/10.1007/s11356-021-16503-9
Barać N, Barcelo E, Stojanović D, Milovanović S, Uskoković P, Gane P, Dimic-Misic K, Imani M, Janaćković Đ. Modification of CaCO3 and CaCO3 pin-coated cellulose paper under supercritical carbon dioxide-ethanol mixture for enhanced NO2 capture. in Environmental Science and Pollution Research. 2022;29(8):11707-11717. doi:10.1007/s11356-021-16503-9 .
Barać, Nemanja, Barcelo, Ernest, Stojanović, Dušica, Milovanović, Stoja, Uskoković, Petar, Gane, Patrick, Dimic-Misic, Katarina, Imani, Monireh, Janaćković, Đorđe, "Modification of CaCO3 and CaCO3 pin-coated cellulose paper under supercritical carbon dioxide-ethanol mixture for enhanced NO2 capture" in Environmental Science and Pollution Research, 29, no. 8 (2022):11707-11717, https://doi.org/10.1007/s11356-021-16503-9 . .