Thermochemistry of interaction between cellulose modified with 2-aminomethylpyridine and divalent cations

Filho, Edson Cavalcanti da Silva; Júnior, Luiz S. Santos; Santos, M. R. M. C.; Fonseca, Maria G.; Sousa, Kaline S.; Santana, Sirlane Aparecida Abreu; Airoldi, Cláudio

doi:10.1007/s10973-012-2917-y

Cited by 7 publications

(3 citation statements)

References 30 publications

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“…On this topic, several surface modification reactions of cellulose are studied in which we can highlight the incorporation of alkaline centers on cellulose surface from of nitrogen-containing compounds. The incorporation of this alkaline center, in the cellulose structure, can occur through a variety of chemical reactions, using various nitrogen precursors, such as aminoethanethiol [ 8 ], ethylenediamine [ 10 ], 2-aminomethylpyridine [ 11 ] and 1,4-diaminobutane [ 12 ]. Studies showed, in aqueous medium, an interaction between the nitrogen incorporated to cellulose and contaminants (metals and dyes), in a heterogeneous system using the solid/liquid interface [ 13 ].…”

Section: Introductionmentioning

confidence: 99%

Direct Modification of Microcrystalline Cellulose with Ethylenediamine for Use as Adsorbent for Removal Amitriptyline Drug from Environment

Bezerra

Leal

Silva³

et al. 2017

Molecules

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Cellulose derivatives have been widely used as adsorbents for the removal of micropollutants such as drugs, dyes, and metals, due to their abundance, low cost and non-contaminating nature. In this context, several studies have been performed searching for new adsorbents (cellulose derivatives) efficient at contaminant removal from aqueous solutions. Thus, a new adsorbent was synthesized by chemical modification of cellulose with ethylenediamine in the absence of solvent and applied to the adsorption of amitriptyline (AMI) in aqueous solution. The modification reaction was confirmed by X-ray Diffraction (XRD), elemental analysis, Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetry/Differential Scanning Calorimeter (TG/DSC), solid state Nuclear Magnetic Resonance of 1H and 13C (1H-NMR and 13C-NMR). Moreover, the effectiveness of reaction was confirmed by computational calculations using Density Functional Theory (DFT) at level B3LYP/6-31G(d). This adsorption process was influenced by pH, time, concentration, temperature and did not show significant changes due to the ionic strength variation. Through these experiments, it was observed that the maximum adsorption capacity of AMI by CN polymer at 298 K, 300 min, and pH 7 was 87.66 ± 0.60 mg·g−1.

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Section: Introductionmentioning

confidence: 99%

Direct Modification of Microcrystalline Cellulose with Ethylenediamine for Use as Adsorbent for Removal Amitriptyline Drug from Environment

Bezerra

Leal

Silva³

et al. 2017

Molecules

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“…The amount of incorporated nitrogen in cellulose by this reaction is low, when compared to similar patterns. This fact can be explained by steric impediment which is caused by molecule hydrophobicity [30]. These cellulosic derivatives containing basic centers (in this case nitrogen) are extremely used in the contaminants removal of the aqueous medium.…”

Section: Aminationmentioning

confidence: 99%

Chemical Functionalization of Cellulosic Materials — Main Reactions and Applications in the Contaminants Removal of Aqueous Medium

Bezerra¹,

Teixeira²,

Teixeira³

et al. 2015

Cellulose - Fundamental Aspects and Current Trends

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The cellulose is the most abundant biopolymer in the world and presents a higher chemical variability for presence of several hydroxyl groups. These hydroxyl groups allow surface modification of biomaterials, with insertion of several chemical groups which change cellulose characteristics. This natural biopolymer and its derivatives have been used a lot as adsorbent, from several contaminants of aqueous medium due to biocompatibility, chemical degradability, and variability. Therefore, this chapter has the objective to review the literature about several cellulose surfaces or cellulosic material incorporation of carboxymethyl, phosphorus, carboxyl, amines, and sulfur , presenting the main characteristics of reactions and showing its adsorption in application of aqueous medium metals, dyes, and drugs , locating the main interactions between biomaterial/contaminant.

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“…Therefore, it is necessary to study the application of novel adsorbents to consolidate their industrial application [11][12][13]. In this direction, it has been reported that two-dimensional (2D) nanomaterials show potential as promising adsorbents for heavy metal removal [14][15][16]. For instance, 2D graphene oxide (GO) with large surface area includes reactive functional groups (carboxyl, hydroxyl, and carbonyl groups) and exhibits high affinity with metal ions [17].…”

Section: Introductionmentioning

confidence: 99%

Multilayer Graphene Oxide Supported ZIF-8 for Efficient Removal of Copper Ions

Zhang

Wang

et al. 2022

Nanomaterials

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To address the performance deterioration of ZIF-8 for the adsorption of copper ions caused by powder volume pressure and particle aggregation, we employed multilayer graphene oxide (MGO) as a support to prepare composite adsorbents (MGO@ZIF-8) by using the in situ growth of ZIF-8 on MGO. Due to a good interfacial compatibility and affinity between ZIF-8 and graphene nanosheets, the MGO@ZIF-8 was successfully prepared. The optimal Cu2+ adsorption conditions of MGO@ZIF-8 were obtained through single factor experiments and orthogonal experiments. Surprisingly, the Cu2+ adsorption capacity was significantly improved by the integration of MGO and ZIF-8, and the maximum Cu2+ adsorption capacity of MGO@ZIF-8 reached 431.63 mg/g under the optimal adsorption conditions. Furthermore, the kinetic fitting and isotherm curve fitting confirmed that the adsorption law of Cu2+ by MGO@ZIF-8 was the pseudo-second-order kinetic model and the Langmuir isotherm model, which indicated that the process of Cu2+ adsorption was monolayer chemisorption. This work provides a new approach for designing and constructing ZIF-8 composites, and also offers an efficient means for the removal of heavy metals.

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Thermochemistry of interaction between cellulose modified with 2-aminomethylpyridine and divalent cations

Cited by 7 publications

References 30 publications

Direct Modification of Microcrystalline Cellulose with Ethylenediamine for Use as Adsorbent for Removal Amitriptyline Drug from Environment

Direct Modification of Microcrystalline Cellulose with Ethylenediamine for Use as Adsorbent for Removal Amitriptyline Drug from Environment

Chemical Functionalization of Cellulosic Materials — Main Reactions and Applications in the Contaminants Removal of Aqueous Medium

Multilayer Graphene Oxide Supported ZIF-8 for Efficient Removal of Copper Ions

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