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Statistical modelingand optimization of heterogeneousFenton‑like removal of organicpollutant using fibrous catalysts: a full factorial design
University of Borås, Faculty of Textiles, Engineering and Business.ORCID iD: 0000-0003-2820-1333
University of Borås, Faculty of Textiles, Engineering and Business.
University of Borås, Professional Services.
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2020 (English)In: Scientific Reports, E-ISSN 2045-2322, article id 16133Article in journal (Refereed) Published
Sustainable development
According to the author(s), the content of this publication falls within the area of sustainable development.
Abstract [en]

This work focuses on the optimization of heterogeneous Fenton-like removal of organic pollutant (dye) from water using newly developed fibrous catalysts based on a full factorial experimental design. This study aims to approximate the feasibility of heterogeneous Fenton-like removal process and optionally make predictions from this approximation in a form of statistical modeling. The fibrous catalysts were prepared by dispersing zerovalent iron nanoparticles on polyester fabrics (PET) before and after incorporation of either polyamidoamine (PAMAM, –NH2) dendrimer, 3-(aminopropyl) triethoxysilane (APTES, –Si–NH2) or thioglycerol (SH). The individual effect of two main factors [pH (X1) and concentration of hydrogen peroxide-[H2O2]μl (X2)] and their interactional effects on the removal process was determined at 95% confidence level by an L27 design. The results indicated that increasing the pH over 5 decreases the dye removal efficiency whereas the rise in [H2O2]μl until equilibrium point increases it. The principal effect of the type of catalysts (PET–NH2–Fe, PET–Si–NH2–Fe, and PET–SH–Fe) did not show any statistical significance. The factorial experiments demonstrated the existence of a significant synergistic interaction effect between the pH and [H2O2]μl as expressed by the values of the coefficient of interactions and analysis of variance (ANOVA). Finally, the functionalization of the resultant fibrous catalysts was validated by electrokinetic and X-ray photoelectron spectroscopy analysis. The optimization made from this study are of great importance for rational design and scaling up of fibrous catalyst for green chemistry and environmental applications.

Place, publisher, year, edition, pages
2020. article id 16133
Keywords [en]
Fibrous catalyst; Fenton process optimization; Heterogeneous catalysis; Wastewater treatment; Full factorial design; Statistical modeling.
National Category
Chemical Sciences
Research subject
Textiles and Fashion (General)
Identifiers
URN: urn:nbn:se:hb:diva-23900DOI: 10.1038/s41598-020-72401-zISI: 000577212800045Scopus ID: 2-s2.0-85091721409OAI: oai:DiVA.org:hb-23900DiVA, id: diva2:1474868
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SMDTexAvailable from: 2020-10-10 Created: 2020-10-10 Last updated: 2022-09-15Bibliographically approved

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Morshed, Mohammad NeazNierstrasz, Vincent

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