Facile synthesis of metal ion-cross-linked alginate electrode for efficient organic dye removal

Tao, Xiaoming; Wu, Yunhai; Wu, Yunying; Fan, Yiting; Zhang, Bing; Sha, Hao; Cha, Ligen; Liu, Ningning

doi:10.1007/s11581-018-2672-6

Cited by 2 publications

(2 citation statements)

References 65 publications

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“…Its electro-fabrication has been achieved by electrochemically controlling Ca 2+ release by CaCO 3 speciation. [46,60] Given that Cu 2+ serves as a crosslinker Alg, [36,61] we can translate the principle of Ca 2+ speciation technique with Cu 2+ system, from a colloidal suspension of Cu(OH) 2 . Briefly, two sodium alginate (3% m/𝜐) solutions were prepared: 1) for the corrosion method, the solution contained 100 mM HOAc, and 2) for the speciation method, the solution contained a colloidal suspension of 25 mM Cu(OH) 2 .…”

Section: Speciation-driven Electro-fabricationmentioning

confidence: 99%

“…This has been of interest to the field of soft chemistry, as the physicochemical properties of chelated hydrogels can be tailored to suit applications in self healing, [2,[5][6][7][8][9] antibiotic, [6,[10][11][12] wound healing, [12][13][14][15] drug delivery, [16,17] mechanical actuation, [6,[18][19][20][21][22][23] stimuli responsive materials by redox [24] or homogeneous reactions, [7,[25][26][27][28] catalysis, [29][30][31] sensing, [32,33] bioinspired materials with fluorescent, [34] adhesive properties, [4] among others. Seeking to harness the capabilities of these materials, several publications have evaluated the interaction of metal ions and biomacromolecules, most notably, histidine-containing proteins, [3,7,35] alginate, [29,36] chitosan, [13,25,[37][38][39] and derivat...…”

Section: Introductionmentioning

confidence: 99%

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Mechanistic Analysis and Control of Electro‐Fabrication with Soft Matter: Polysaccharide Self‐Assembly with Electrochemically Produced Metal Ions

Jind,

Jiménez‐Moreno,

Chauhan

et al. 2023

Adv Materials Inter

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Electro‐fabrication is an emerging additive manufacturing approach that includes a variety of mechanisms and crosslinking chemistries to induce the self‐assembly‐ of soft matter. Within electro‐fabrication techniques, anodic electro‐fabrication is of great interest, because it can use the electrode as a sacrificial source of metal ions for the controlled formation of chelated hydrogels. However, it remains challenging to understand how the various solution conditions (e.g., buffer capacity, ligands) and imposed voltages must be controlled to achieve the chelation and sol‐gel transition. Herein, a comprehensive thermodynamics‐based framework is built to guide the selection of conditions for the self ‐assembly of polysaccharide hydrogels by crosslinking with transition metal ions generated via corrosion. This methodology is demonstrated through real‐time spectro‐electrochemical monitoring and employed for the electro‐fabrication of chitosan hydrogels chelated with Au3+, Ag+, Cu2+, and Pd2+, and alginate hydrogels chelated with Cu2+. The presented guidelines are intended to extend the capabilities of the controlled fabrication of assemblies crosslinked with metal ions, opening new horizons for unprecedented materials design with precisely tailored structures and functions.

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Section: Speciation-driven Electro-fabricationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mechanistic Analysis and Control of Electro‐Fabrication with Soft Matter: Polysaccharide Self‐Assembly with Electrochemically Produced Metal Ions

Jind,

Jiménez‐Moreno,

Chauhan

et al. 2023

Adv Materials Inter

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Infiltrated thin film structure with hydrogel-mediated precursor ink for durable SOFCs

Hwang

Choi

Lee

et al. 2021

Sci Rep

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The hydrogel of biomolecule-assisted metal/organic complex has the superior ability to form a uniform, continuous, and densely integrated structure, which is necessary for fine thin film fabrication. As a representative of nature-originated polymers with abundant reactive side chains, we select the gelatin molecule as an element for weaving the metal cations. Here, we demonstrate the interaction between the metal cation and gelatin molecules, and associate it with coating quality. We investigate the rheological property of gelatin solutions interacting with metal cation from the view of cross-linking and denaturing of gelatin molecules. Also, we quantitatively compare the corresponding interactions by monitoring the absorbance spectrum of the cation. The coated porous structure is systematically investigated from the infiltration of gelatin-mediated Gd0.2Ce0.8O2−δ (GDC) precursor into Sm0.5Sr0.5CoO3−δ (SSC) porous scaffold. By applying the actively interacting gelatin–GDC system, we achieve a thin film of GDC on SSC with excellent uniformity. Compare to the discrete coating from the typical infiltration process, the optimized thin film coated structure shows enhanced performance and stability.

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Facile synthesis of metal ion-cross-linked alginate electrode for efficient organic dye removal

Cited by 2 publications

References 65 publications

Mechanistic Analysis and Control of Electro‐Fabrication with Soft Matter: Polysaccharide Self‐Assembly with Electrochemically Produced Metal Ions

Mechanistic Analysis and Control of Electro‐Fabrication with Soft Matter: Polysaccharide Self‐Assembly with Electrochemically Produced Metal Ions

Infiltrated thin film structure with hydrogel-mediated precursor ink for durable SOFCs

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