دورية أكاديمية
Oxidized jute as a valuable adsorbent for Congo Red from an aqueous solution
| العنوان: | Oxidized jute as a valuable adsorbent for Congo Red from an aqueous solution |
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| المؤلفون: | Aleksandra Ivanovska, Ivana Branković, Jelena Lađarević, Leposava Pavun, Mirjana Kostic |
| المصدر: | Journal of Engineered Fibers and Fabrics, Vol 17 (2022) |
| بيانات النشر: | SAGE Publishing, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Materials of engineering and construction. Mechanics of materials LCC:Chemical technology LCC:Textile bleaching, dyeing, printing, etc. |
| مصطلحات موضوعية: | Materials of engineering and construction. Mechanics of materials, TA401-492, Chemical technology, TP1-1185, Textile bleaching, dyeing, printing, etc., TP890-933 |
| الوصف: | The raw jute fabric was oxidized with 0.2% or 0.4% NaIO 4 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% NaIO 4 and 120 min with 0.4% NaIO 4 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% NaIO 4 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. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1558-9250 15589250 |
| Relation: | https://doaj.org/toc/1558-9250 |
| DOI: | 10.1177/15589250221101380 |
| URL الوصول: | https://doaj.org/article/7d6b776bba484237b8193de2fbab4d71 |
| رقم الأكسشن: | edsdoj.7d6b776bba484237b8193de2fbab4d71 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 15589250 |
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| DOI: | 10.1177/15589250221101380 |