Oxidized jute as a valuable adsorbent for Congo Red from an aqueous solution
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The raw jute fabric was oxidized with 0.2% or 0.4% NaIO4 for 60 or 120 min to obtain valuable adsorbents for the textile dye Congo Red (CR). Batch adsorption experiments were carried out as a function of solution pH, contact time, initial CR concentration, and temperature. At an initial CR concentration of 25 mg/L, the raw jute possessed the lowest adsorption due to the lowest availability and content of carboxyl and aldehyde groups capable of binding dye. The fabrics oxidized for 60 min with 0.2% NaIO4 and 120 min with 0.4% NaIO4 reached equilibrium adsorption after 240 and 330 min, respectively. The adsorption of CR onto studied fabrics followed the pseudo-second-order model indicating that the chemisorption process is primarily represented. Within the studied range of CR concentrations (25–100 mg/L), its adsorption onto fabric oxidized for 120 min with 0.4% NaIO4 obeys the Langmuir isotherm model (i.e. adsorption occurs at specific, energetically equivalent adsorbent sites with mono...layer coverage of CR over a homogeneous surface), wherein the calculated maximal adsorption capacity is 12.863 mg/g. A thermodynamic study revealed the spontaneous and endothermic character of CR adsorption onto jute fabric. Based on the recorded ATR-FTIR spectra before and after CR adsorption, it is suggested that repulsion, hydrogen bonds, and π-π stacking interactions are involved in the binding of CR onto jute fabrics.
Кључне речи:
adsorbent / adsorption mechanism / Congo Red / Jute / oxidationИзвор:
Journal of Engineered Fibers and Fabrics, 2022, 17Издавач:
- SAGE Publications Ltd.
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200287 (Иновациони центар Технолошко-металуршког факултета у Београду доо) (RS-MESTD-inst-2020-200287)
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200135 (Универзитет у Београду, Технолошко-металуршки факултет) (RS-MESTD-inst-2020-200135)
- RECAP - Integrated Strategy for Rehabilitation of Disturbed Land Surfaces and Control of Air Pollution (RS-ScienceFundRS-Ideje-7726976)
DOI: 10.1177/15589250221101380
ISSN: 1558-9250
WoS: 00080019810000
Scopus: 2-s2.0-85130749698
Колекције
Институција/група
Inovacioni centarTY - JOUR AU - Ivanovska, Aleksandra AU - Branković, Ivana AU - Lađarević, Jelena AU - Pavun, Leposava AU - Kostić, Mirjana PY - 2022 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5347 AB - The raw jute fabric was oxidized with 0.2% or 0.4% NaIO4 for 60 or 120 min to obtain valuable adsorbents for the textile dye Congo Red (CR). Batch adsorption experiments were carried out as a function of solution pH, contact time, initial CR concentration, and temperature. At an initial CR concentration of 25 mg/L, the raw jute possessed the lowest adsorption due to the lowest availability and content of carboxyl and aldehyde groups capable of binding dye. The fabrics oxidized for 60 min with 0.2% NaIO4 and 120 min with 0.4% NaIO4 reached equilibrium adsorption after 240 and 330 min, respectively. The adsorption of CR onto studied fabrics followed the pseudo-second-order model indicating that the chemisorption process is primarily represented. Within the studied range of CR concentrations (25–100 mg/L), its adsorption onto fabric oxidized for 120 min with 0.4% NaIO4 obeys the Langmuir isotherm model (i.e. adsorption occurs at specific, energetically equivalent adsorbent sites with monolayer coverage of CR over a homogeneous surface), wherein the calculated maximal adsorption capacity is 12.863 mg/g. A thermodynamic study revealed the spontaneous and endothermic character of CR adsorption onto jute fabric. Based on the recorded ATR-FTIR spectra before and after CR adsorption, it is suggested that repulsion, hydrogen bonds, and π-π stacking interactions are involved in the binding of CR onto jute fabrics. PB - SAGE Publications Ltd. T2 - Journal of Engineered Fibers and Fabrics T1 - Oxidized jute as a valuable adsorbent for Congo Red from an aqueous solution VL - 17 DO - 10.1177/15589250221101380 ER -
@article{ author = "Ivanovska, Aleksandra and Branković, Ivana and Lađarević, Jelena and Pavun, Leposava and Kostić, Mirjana", year = "2022", abstract = "The raw jute fabric was oxidized with 0.2% or 0.4% NaIO4 for 60 or 120 min to obtain valuable adsorbents for the textile dye Congo Red (CR). Batch adsorption experiments were carried out as a function of solution pH, contact time, initial CR concentration, and temperature. At an initial CR concentration of 25 mg/L, the raw jute possessed the lowest adsorption due to the lowest availability and content of carboxyl and aldehyde groups capable of binding dye. The fabrics oxidized for 60 min with 0.2% NaIO4 and 120 min with 0.4% NaIO4 reached equilibrium adsorption after 240 and 330 min, respectively. The adsorption of CR onto studied fabrics followed the pseudo-second-order model indicating that the chemisorption process is primarily represented. Within the studied range of CR concentrations (25–100 mg/L), its adsorption onto fabric oxidized for 120 min with 0.4% NaIO4 obeys the Langmuir isotherm model (i.e. adsorption occurs at specific, energetically equivalent adsorbent sites with monolayer coverage of CR over a homogeneous surface), wherein the calculated maximal adsorption capacity is 12.863 mg/g. A thermodynamic study revealed the spontaneous and endothermic character of CR adsorption onto jute fabric. Based on the recorded ATR-FTIR spectra before and after CR adsorption, it is suggested that repulsion, hydrogen bonds, and π-π stacking interactions are involved in the binding of CR onto jute fabrics.", publisher = "SAGE Publications Ltd.", journal = "Journal of Engineered Fibers and Fabrics", title = "Oxidized jute as a valuable adsorbent for Congo Red from an aqueous solution", volume = "17", doi = "10.1177/15589250221101380" }
Ivanovska, A., Branković, I., Lađarević, J., Pavun, L.,& Kostić, M.. (2022). Oxidized jute as a valuable adsorbent for Congo Red from an aqueous solution. in Journal of Engineered Fibers and Fabrics SAGE Publications Ltd.., 17. https://doi.org/10.1177/15589250221101380
Ivanovska A, Branković I, Lađarević J, Pavun L, Kostić M. Oxidized jute as a valuable adsorbent for Congo Red from an aqueous solution. in Journal of Engineered Fibers and Fabrics. 2022;17. doi:10.1177/15589250221101380 .
Ivanovska, Aleksandra, Branković, Ivana, Lađarević, Jelena, Pavun, Leposava, Kostić, Mirjana, "Oxidized jute as a valuable adsorbent for Congo Red from an aqueous solution" in Journal of Engineered Fibers and Fabrics, 17 (2022), https://doi.org/10.1177/15589250221101380 . .