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Journals / Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi / 2020 / Cilt: 10 - Sayı: 3

An Application of Polydopamine-dip Coating as a Gentle Surface Modification Process for Cryogel Disks

Gözde ÖZBEK
Orhan GEZİCİ
Mevlüt BAYRAKCI
Pages
1747–1758
Publication Date
2020-09-01
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The proposed approach was found to be a promising post-surface modification process for tailoring the surface of monolithic cryogels without any difficult synthesis steps and harsh chemicals.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:The process called “polydopamine-dip coating” was successfully applied to modify the surface of poly(2-hydroxyethyl methacrylate), PHEMA, cryogel disks for the first time.
📊
Key Findings & Data:Polydopamine (PDA) nanocoating process was observed to be homogeneously performed through the pores and there was a net color change from white to brown after 24 h.
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Conclusion & Impact:The proposed approach was found to be a promising post-surface modification process for tailoring the surface of monolithic cryogels without any difficult synthesis steps and harsh chemicals.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Adsorption · cryogel · heavy metal

Abstract

The process called “polydopamine-dip coating” was successfully applied to modify the surface of poly(2-hydroxyethyl methacrylate), PHEMA, cryogel disks for the first time. This facile surface modification process fitted very well to the chemistry of cryogels since the integrity of the cryogel disks was maintained during the whole process. Polydopamine (PDA) nanocoating process was observed to be homogeneously performed through the pores and there was a net color change from white to brown after 24 h. The obtained (brownish) material (PHEMA-PDA) was characterized with respect to FTIR spectroscopy, pHpzc, and water-holding capacity analyses. The potential of this new material was studied by utilizing it as an adsorbent for the adsorption of Ni(II) from synthetic aqueous solutions. The equilibrium adsorption data were analyzed on the basis of the Langmuir, the Freundlich, and the Temkin isotherm models. In general, Ni(II) adsorption on PHEMA-PDA was evaluated as a favorable process as depicted from the studied models. The proposed approach was found to be a promising post-surface modification process for tailoring the surface of monolithic cryogels without any difficult synthesis steps and harsh chemicals.

Özet

The process called “polydopamine-dip coating” was successfully applied to modify the surface of poly(2-hydroxyethyl methacrylate), PHEMA, cryogel disks for the first time. This facile surface modification process fitted very well to the chemistry of cryogels since the integrity of the cryogel disks was maintained during the whole process. Polydopamine (PDA) nanocoating process was observed to be homogeneously performed through the pores and there was a net color change from white to brown after 24 h. The obtained (brownish) material (PHEMA-PDA) was characterized with respect to FTIR spectroscopy, pHpzc, and water-holding capacity analyses. The potential of this new material was studied by utilizing it as an adsorbent for the adsorption of Ni(II) from synthetic aqueous solutions. The equilibrium adsorption data were analyzed on the basis of the Langmuir, the Freundlich, and the Temkin isotherm models. In general, Ni(II) adsorption on PHEMA-PDA was evaluated as a favorable process as depicted from the studied models. The proposed approach was found to be a promising post-surface modification process for tailoring the surface of monolithic cryogels without any difficult synthesis steps and harsh chemicals.

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Cite This Article

ÖZBEK, G., GEZİCİ, O., BAYRAKCI, M. (2020). An Application of Polydopamine-dip Coating as a Gentle Surface Modification Process for Cryogel Disks. Iğdır Üniversitesi Fen Bilimleri Enstitüsü Dergisi, Cilt: 10 - Sayı: 3, 1747–1758. https://ajindex.com/articles/256895

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