Academic Journal
Pilot-scale foam and cast-coated nanocellulose filters for water treatment
| العنوان: | Pilot-scale foam and cast-coated nanocellulose filters for water treatment |
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| المؤلفون: | Byambatsogt, Khatanbaatar, Jiang, Qixiang, Jaiswal, Aayush Kumar, Kunnari, Vesa, Bismarck, Alexander, Mautner, Andreas |
| المصدر: | Byambatsogt , K , Jiang , Q , Jaiswal , A K , Kunnari , V , Bismarck , A & Mautner , A 2025 , ' Pilot-scale foam and cast-coated nanocellulose filters for water treatment ' , Monatshefte für Chemie , vol. 156 , 107759 , pp. 91-101 . https://doi.org/10.1007/s00706-024-03211-6 |
| سنة النشر: | 2025 |
| مصطلحات موضوعية: | Carbohydrates, Coating, Foaming, Membranes, Nanocellulose, Surfactants, /dk/atira/pure/sustainabledevelopmentgoals/clean_water_and_sanitation, name=SDG 6 - Clean Water and Sanitation |
| الوصف: | A large variety of substances, for instance heavy metal ions from different sources including mining, industry, and agricultural activities, pollute fresh water sources. Bio-based adsorbents, such as cellulose nanofibers (CNF), have recently been introduced in the process of treating water to remove hazardous pollutants primarily owing to their natural abundance, non-toxicity, and renewability. Surface modification of CNF, e.g. by catalytically oxidising the primary C6-OH groups of CNF selectively into carboxylic (COO − ) groups with TEMPO, yields materials that are effective in adsorbing positively charged heavy metal ions, e.g. Cu ions. However, to utilise CNF in continuous processes beyond static, batch-wise adsorption, in particular on (pre-)industrial scale, they need to be immobilised on filter substrates in thin layers and an efficient manner. In this work, we report bio-adsorbent-based filters prepared by coating TEMPO-CNF on viscose filters using two different pilot-scale coating approaches, foam and cast coating. The performance of TEMPO-CNF filters was evaluated in terms of their water permeance as well as adsorption of metal ions including Cu(II) and Ca(II). By foam coating thin layers could be fabricated in a time efficient way facilitating high adsorption capacities (52 mg g −1 ), whilst by cast coating higher amounts of TEMPO-CNF could be deposited allowing for adsorbing higher absolute amounts (280 mg m −2 ) of heavy metal ions. Graphical abstract: (Figure presented.) |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | info:eu-repo/grantAgreement/EC/H2020/760601 |
| DOI: | 10.1007/s00706-024-03211-6 |
| الاتاحة: | https://cris.vtt.fi/en/publications/51176bb4-61df-4b0e-b8fd-40c1ce662d69 https://doi.org/10.1007/s00706-024-03211-6 http://www.scopus.com/inward/record.url?scp=85193239325&partnerID=8YFLogxK |
| Rights: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.CB65AD7C |
| قاعدة البيانات: | BASE |
| DOI: | 10.1007/s00706-024-03211-6 |
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