New Mussel Inspired Polydopamine-Like Silica-Based Material for Dye Adsorption

Massaro, Marina; Campisciano, Vincenzo; Iborra, César Viseras; Liotta, Leonarda Francesca; Sánchez‐Polo, M.; Riela, Serena; Gruttadauria, Michelangelo

doi:10.3390/nano10071416

Cited by 6 publications

(6 citation statements)

References 34 publications

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“…[12] The lower amount of adsorbed water the higher hydrophobicity. Dimethoxymethyl-based silica materials (E2, E2d, E1d and EH6.5), as expected, showed higher hydrophobicity (entries [8][9][10]15). The residue values were corrected based on the amount of water present in the samples.…”

Section: Resultsmentioning

confidence: 99%

“…Due to the great interest in mussel‐inspired chemistry, we recently reported a simple and low‐cost approach by using the cheap catechol and 3‐aminopropyltrimethoxysilane (APTMS), as the amine counterpart, for the synthesis of a polydopamine‐like silica‐based material [8] …”

Section: Introductionmentioning

confidence: 99%

“…[7] Due to the great interest in mussel-inspired chemistry, we recently reported a simple and low-cost approach by using the cheap catechol and 3-aminopropyltrimethoxysilane (APTMS), as the amine counterpart, for the synthesis of a polydopamine-like silica-based material. [8] Then, we started a deeper investigation in the development of new hybrid organic-inorganic multifunctional materials in a very easy way. Indeed, oxidation-polymerisation of catechol followed by nucleophilic addition of amine moiety and hydrolytic polycondensation of trimethoxysilane group can give a final material displaying several functional groups such as amine, imine, phenolic hydroxyl as well as carbonyl groups.…”

Section: Introductionmentioning

confidence: 99%

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New Hybrid Organic‐inorganic Multifunctional Materials Based on Polydopamine‐like Chemistry

et al. 2021

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A simple one‐pot procedure under mild conditions has been developed with the aim of preparing a set of hybrid organic‐inorganic multifunctional materials. This procedure is based on the use of catechol and KIO4 as oxidizing agent in conjunction with 3‐aminopropyl‐, substituted 3‐aminopropyl‐ and 3‐methylimidazolium‐1‐trimethoxypropylsilane mimicking polydopamine‐like chemistry. Reactions were carried out in water at room temperature and 70 °C to give fifteen materials that were characterised by using several techniques (nitrogen physisorption, TGA, XPS, 13C and 29Si CP‐MAS NMR, IR, pHPZC). Knoevenagel reaction was chosen as a good probe to investigate the availability of functional groups on the surface of the materials. The most active catalytic materials were tested in recycling procedures. Such simple procedure is of broad interest for the scientific community and it open the doors to the development of new hybrid organic‐inorganic multifunctional materials for several purposes.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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New Hybrid Organic‐inorganic Multifunctional Materials Based on Polydopamine‐like Chemistry

et al. 2021

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“…Dyes in water can adversely affect ecosystems and human health. Adsorption has become one of the most effective wastewater treatment methods because of its low cost, simple operation, and high efficiency [ 1 , 2 , 3 ]. Graphene aerogels are porous (porosity can reach more than 99%), which can provide sufficient transport channels for the diffusion of pollutants when they are adsorbed to improve the adsorption efficiency of adsorbents [ 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Ultralight, Mechanically Enhanced, and Thermally Improved Graphene-Cellulose-Polyethyleneimine Aerogels for the Adsorption of Anionic and Cationic Dyes

Wang

Xie

et al. 2022

Nanomaterials

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Graphene-cellulose-polyethyleneimine aerogels (GA-MCC-PEI) were prepared using a simple, environmentally friendly method to remove anionic and cationic dyes in water. Graphene-cellulose hydrogels were prepared using a hydrothermal method and then immersed in a polyethyleneimine aqueous solution for 48 h to obtain graphene-cellulose-polyethyleneimine hydrogels, which were then freeze-dried. The light and porous composite aerogels had a good compression resistance, and the maximum allowable pressure of the graphene-cellulose-polyethyleneimine aerogel with a cellulose content of 43% was 21.76 kPa, which was 827 times its weight. Adsorption of the anionic dye amaranth and the cationic dye methylene blue by the graphene-cellulose-polyethyleneimine aerogel was satisfactorily modeled using the Langmuir isothermal equation, indicating monolayer adsorption. When the cellulose content was 39%, the equilibrium adsorption capacities of the composite aerogel for amaranth and methylene blue were 369.37 mg/g and 237.33 mg/g, respectively. This graphene-cellulose-polyethyleneimine aerogel can be used to remove dye pollutants in water to maintain ecological balance, thus broadening the application space of aerogel materials, that is, as adsorbents in different environments.

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“…Further development of the conception has shifted attention from commerciallyavailable dopamine to other catechol systems and dopamine derivatives, giving rise to polydopamine-like coatings. This approach relies on dopamine derivatives that are made from dopamine or other catecholic compounds by synthetic approaches with a subsequent application for surface modification [28][29][30][31]. This strategy makes it possible to change the sequence of functionalization: firstly, functional monomers can be synthesized by conventional organic synthesis, in which case the coating is applied on the substrate's surface.…”

Section: Introductionmentioning

confidence: 99%

Bio-Inspired Surface Modification of Magnetite Nanoparticles with Dopamine Conjugates

et al. 2022

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Organically-coated nanomaterials are intensively studied and find numerous applications in a wide range of areas from optics to biomedicine. One of the recent trends in material science is the application of bio-mimetic polydopamine coatings that can be produced on a variety of substrates in a cost-efficient way under mild conditions. Such coatings not only modify the biocompatibility of the material but also add functional amino groups to the surface that can be further modified by classic conjugation techniques. Here we show an alternative strategy for substrates modification using dopamine conjugates instead of native dopamine. Compared to the classic scheme, the proposed strategy allows separation of the “organic” and “colloidal” stages, and simplified identification and purification steps. Modification with pre-modified dopamine made it possible to achieve high loading capacities with active components up to 10.5% wt. A series of organo-inorganic hybrids were synthesized and their bioactivity was analyzed.

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New Mussel Inspired Polydopamine-Like Silica-Based Material for Dye Adsorption

Cited by 6 publications

References 34 publications

New Hybrid Organic‐inorganic Multifunctional Materials Based on Polydopamine‐like Chemistry

New Hybrid Organic‐inorganic Multifunctional Materials Based on Polydopamine‐like Chemistry

Ultralight, Mechanically Enhanced, and Thermally Improved Graphene-Cellulose-Polyethyleneimine Aerogels for the Adsorption of Anionic and Cationic Dyes

Bio-Inspired Surface Modification of Magnetite Nanoparticles with Dopamine Conjugates

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