Adsorption characteristics of chitosan hydrogel beads toward removal of Congo red dye from aqueous solutions
Adsorpcione karakteristike hidrogelova hitozana za uklanjanje boje kongo crveno iz vodenih rastvora
Апстракт
The present study investigated potential application of biopolymer chitosan, in the form of gel beads, for the removal of Congo red (CR) dye from aqueous solution. Chitosan hydrogel beads (CHBs) were prepared by a coupled ionic and covalent co-cross-linking, employing citric acid (CA) and glutaraldehyde (Glu) as an ionic and a chemical crosslinker, respectively. Batch experiments were carried out to optimize the process conditions for efficient removal of CR dye and to determine the adsorption capacity of prepared CHBs. The results showed that the highest removal efficiency of CR was obtained in the pH range from 6 to 10, and that the equilibrium was attained after 180 min. The Langmuir isotherm model provided the best correlation for the adsorption of CR onto CA/Glu cocross-linked CHBs, with the maximum adsorption capacity (qm) of 544.2 mg g-1 .
Istraživanja u okviru ove studije okrenuta su ka ispitivanju mogućnosti primene hidrogelova hitozana, u obliku sfera, za uklanjanje boje kongo crveno (CR) iz vodenih rastvora. Sfere hidrogela hitozana (CHBs) pripremljene su spregnutim jonskim i kovalentnim umrežavanjem, pri čemu su limunska kiselina (CA) i glutaraldehid (Glu) korišćeni kao jonski i kovalentni umreživač, respektivno. Eksperimenti su rađeni u šaržnom sistemu kako bi se optimizovali uslovi za efikasno uklanjanje CR iz vode i odredili adsorpcioni kapaciteti sintetisanih CHBs. Eksperimentalni rezultati su pokazali da je efikasnost uklanjanja CR najveća u pH intervalu od 6 do 10, a da se ravnoteža uspostavlja nakon 180 minuta. Langmirova izoterma pokazala je najbolju korelaciju za adsorpciju CR boje na CA/Glu umreženim sferama hidrogelova hitozana, pri čemu maksimalni adsorpcioni kapacitet (qm) iznosi 544.2 mg g-1 .
Извор:
59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings, 2023, 164-167Издавач:
- Belgrade : Serbian Chemical Society
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200017 (Универзитет у Београду, Институт за нуклеарне науке Винча, Београд-Винча) (RS-MESTD-inst-2020-200017)
Напомена:
- 59th Meeting of the Serbian Chemical Society; June 1-2, 2023, Novi Sad, Serbia
Колекције
Институција/група
VinčaTY - CONF AU - Petrović, Đorđe Ž. AU - Stanković, Katarina AU - Kumrić, Ksenija PY - 2023 UR - https://vinar.vin.bg.ac.rs/handle/123456789/12079 AB - The present study investigated potential application of biopolymer chitosan, in the form of gel beads, for the removal of Congo red (CR) dye from aqueous solution. Chitosan hydrogel beads (CHBs) were prepared by a coupled ionic and covalent co-cross-linking, employing citric acid (CA) and glutaraldehyde (Glu) as an ionic and a chemical crosslinker, respectively. Batch experiments were carried out to optimize the process conditions for efficient removal of CR dye and to determine the adsorption capacity of prepared CHBs. The results showed that the highest removal efficiency of CR was obtained in the pH range from 6 to 10, and that the equilibrium was attained after 180 min. The Langmuir isotherm model provided the best correlation for the adsorption of CR onto CA/Glu cocross-linked CHBs, with the maximum adsorption capacity (qm) of 544.2 mg g-1 . AB - Istraživanja u okviru ove studije okrenuta su ka ispitivanju mogućnosti primene hidrogelova hitozana, u obliku sfera, za uklanjanje boje kongo crveno (CR) iz vodenih rastvora. Sfere hidrogela hitozana (CHBs) pripremljene su spregnutim jonskim i kovalentnim umrežavanjem, pri čemu su limunska kiselina (CA) i glutaraldehid (Glu) korišćeni kao jonski i kovalentni umreživač, respektivno. Eksperimenti su rađeni u šaržnom sistemu kako bi se optimizovali uslovi za efikasno uklanjanje CR iz vode i odredili adsorpcioni kapaciteti sintetisanih CHBs. Eksperimentalni rezultati su pokazali da je efikasnost uklanjanja CR najveća u pH intervalu od 6 do 10, a da se ravnoteža uspostavlja nakon 180 minuta. Langmirova izoterma pokazala je najbolju korelaciju za adsorpciju CR boje na CA/Glu umreženim sferama hidrogelova hitozana, pri čemu maksimalni adsorpcioni kapacitet (qm) iznosi 544.2 mg g-1 . PB - Belgrade : Serbian Chemical Society C3 - 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings T1 - Adsorption characteristics of chitosan hydrogel beads toward removal of Congo red dye from aqueous solutions T1 - Adsorpcione karakteristike hidrogelova hitozana za uklanjanje boje kongo crveno iz vodenih rastvora SP - 164 EP - 167 UR - https://hdl.handle.net/21.15107/rcub_vinar_12079 ER -
@conference{ author = "Petrović, Đorđe Ž. and Stanković, Katarina and Kumrić, Ksenija", year = "2023", abstract = "The present study investigated potential application of biopolymer chitosan, in the form of gel beads, for the removal of Congo red (CR) dye from aqueous solution. Chitosan hydrogel beads (CHBs) were prepared by a coupled ionic and covalent co-cross-linking, employing citric acid (CA) and glutaraldehyde (Glu) as an ionic and a chemical crosslinker, respectively. Batch experiments were carried out to optimize the process conditions for efficient removal of CR dye and to determine the adsorption capacity of prepared CHBs. The results showed that the highest removal efficiency of CR was obtained in the pH range from 6 to 10, and that the equilibrium was attained after 180 min. The Langmuir isotherm model provided the best correlation for the adsorption of CR onto CA/Glu cocross-linked CHBs, with the maximum adsorption capacity (qm) of 544.2 mg g-1 ., Istraživanja u okviru ove studije okrenuta su ka ispitivanju mogućnosti primene hidrogelova hitozana, u obliku sfera, za uklanjanje boje kongo crveno (CR) iz vodenih rastvora. Sfere hidrogela hitozana (CHBs) pripremljene su spregnutim jonskim i kovalentnim umrežavanjem, pri čemu su limunska kiselina (CA) i glutaraldehid (Glu) korišćeni kao jonski i kovalentni umreživač, respektivno. Eksperimenti su rađeni u šaržnom sistemu kako bi se optimizovali uslovi za efikasno uklanjanje CR iz vode i odredili adsorpcioni kapaciteti sintetisanih CHBs. Eksperimentalni rezultati su pokazali da je efikasnost uklanjanja CR najveća u pH intervalu od 6 do 10, a da se ravnoteža uspostavlja nakon 180 minuta. Langmirova izoterma pokazala je najbolju korelaciju za adsorpciju CR boje na CA/Glu umreženim sferama hidrogelova hitozana, pri čemu maksimalni adsorpcioni kapacitet (qm) iznosi 544.2 mg g-1 .", publisher = "Belgrade : Serbian Chemical Society", journal = "59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings", title = "Adsorption characteristics of chitosan hydrogel beads toward removal of Congo red dye from aqueous solutions, Adsorpcione karakteristike hidrogelova hitozana za uklanjanje boje kongo crveno iz vodenih rastvora", pages = "164-167", url = "https://hdl.handle.net/21.15107/rcub_vinar_12079" }
Petrović, Đ. Ž., Stanković, K.,& Kumrić, K.. (2023). Adsorption characteristics of chitosan hydrogel beads toward removal of Congo red dye from aqueous solutions. in 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings Belgrade : Serbian Chemical Society., 164-167. https://hdl.handle.net/21.15107/rcub_vinar_12079
Petrović ĐŽ, Stanković K, Kumrić K. Adsorption characteristics of chitosan hydrogel beads toward removal of Congo red dye from aqueous solutions. in 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings. 2023;:164-167. https://hdl.handle.net/21.15107/rcub_vinar_12079 .
Petrović, Đorđe Ž., Stanković, Katarina, Kumrić, Ksenija, "Adsorption characteristics of chitosan hydrogel beads toward removal of Congo red dye from aqueous solutions" in 59th Meeting of the Serbian Chemical Society : Book of Abstracts, Proceedings (2023):164-167, https://hdl.handle.net/21.15107/rcub_vinar_12079 .