Adsorption of aniline on aminated chitosan/graphene oxide composite material

Zhang, Yi; Li, Huajie; Li, Mingchun; Xin, Meihua

doi:10.1016/j.molstruc.2020.127973

Cited by 29 publications

(8 citation statements)

References 15 publications

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“…Therefore, many researchers attempted to overcome such defect by combining GO with other materials. (Zhang et al 2020;Chen et al 2020). Many studies have been done by researchers and found that coating the surface with other materials (such as MOF) is considered to be a good way to avoid its defects, and GO-MOF composite material is hence considered to be a good composite adsorption material (Zhou et al 2014; Amini et al 2020;Eltaweil et al 2020; Bu et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Preparation of GO/MIL-101(Fe,Cu) composite and its adsorption mechanisms for phosphate in aqueous solution

Liu

Bakhtari

et al. 2021

Environ Sci Pollut Res

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In this study, , Cu), and Graphene Oxide (GO) /MIL-101(Fe,Cu) were synthesized to compose a novel sorbent. The adsorption properties of these three MOFs-based composites were compared toward the removal of phosphate. Furthermore, the influencing factors including reaction time, pH, temperature and initial concentration on the adsorption capacity of phosphate on these materials as well as the reusability of the material were discussed. The structure of fabricated materials and the removal mechanism of phosphate on the composite material were analyzed by Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), nitrogen adsorption-desorption analysis and zeta potential. The results show that the maximum adsorption capacity of phosphate by the composite GO/MIL-101(Fe,Cu)-2% was 204.60 mg•g -1 , which is higher than that of MIL-101(Fe,Cu) and MIL-101(Fe). likewise the specific surface area of GO/MIL-101(Fe,Cu)-2% is 778.11 m 2 /g is higher than that of Cu) and ,which are 747.75 and 510.66m 2 /g respectively. The adsorption mechanism of phosphate is electrostatic attraction, form coordination bonds and hydrogen bonds. The fabricated material is a promising adsorbent for the removal of phosphate with good reusability.

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Section: Introductionmentioning

confidence: 99%

Preparation of GO/MIL-101(Fe,Cu) composite and its adsorption mechanisms for phosphate in aqueous solution

Liu

Bakhtari

et al. 2021

Environ Sci Pollut Res

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“…The comparative high intensity bands noted at 3300-3600 cm −1 and it was destabilized after functionalization of amine groups attribute to the N-H stretching vibration in amine groups [41]. For Alg FTIR spectra, the -OH and -COOH groups stretching vibration bands were noted at 1629 and 3396 cm -1 respectively [42] (c.f. Figure 2b).…”

Section: Functional Groups Investigationmentioning

confidence: 95%

Fabrication of Multi-functionalized Graphene Oxide Doped Alginate Hybrid Spheres for Enhanced Fluoride Adsorption

Jeyaseelan

Viswanathan

Naushad

et al. 2021

J Inorg Organomet Polym

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In this present investigation, amine functionalized graphene oxide (AGO) doped on alginate (Alg) polymeric matrix gives AGO@Alg hybrid spheres was developed to explore its potential towards fluoride retention. The vital characterization techniques namely FTIR, TGA, SEM and XPS analysis of AGO@Alg hybrid spheres were acquired to identify its physicochemical properties. The liable parameters for fluoride adsorption onto AGO@Alg hybrid spheres were optimized in a batch mode to attain enhance defluoridation capacity (DC).The prepared AGO@Alg hybrid spheres follow the electrostatic interaction mechanism on defluoridation. The adsorption isotherms (Fruendlich, Langmuir, Temkin and Dubinin-Radushkevich (D-R) models), kinetics (reaction and diffusion based models) and thermodynamic parameters (ΔS°, ΔG° and ΔH°) were surveyed at 303, 313 and 323 K. To lessen the costeffectiveness of AGO@Alg hybrid spheres the recyclability test was conducted. The aptness of AGO@Alg hybrid spheres was also scrutinized for the fluoride contaminated field sample collected from fluoride endemic village.

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“…It has great biological and chemical properties as nontoxicity, low-cost, intelligent, biocompatible, biodegradable, and hydroxyl and amine functional groups on its structure. All these important features make chitosan a very interesting ingredient that can be preferred in removing dyes from the aqueous wastewater system (6,7). A lot of dye-imprinted chitosan have shown great promise for preparing materials and recognition of target dyes in the past regarding the economic feasibility and environmental importance of it.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of molecularly imprinted composite as a novel adsorbent and competition with non-imprinting composite for removal of dye

Yıldırım

Acay

Baran

2021

Journal of the Turkish Chemical Society Section A: Chemistry

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Due to its high visibility, high resistance, and toxic effects, colored substances in the textile and other dyeing industries waste-water cause great damage to biological organisms and ecology. Therefore, current research efforts to develop high selectivity, specificity, and efficient water treatment technologies are very intense, and molecularly imprinting methods (MIM) constitute a category of functional materials to meet these criteria. Polymethylmethacrylate-chitosan molecularly imprinted composite (PMMAC-MIC) and non-imprinted composite (PMMAC-NIC) were successfully prepared by MIM. Dye adsorption performance of MIC and NIC composites was investigated by comparison. The obtained adsorbents were characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and zeta potential techniques. The kinetics of adsorption followed a pseudo-first-order model while the Langmuir adsorption isotherm provided the best fit. The maximum adsorption capacity of dye was found as 93.78 mg/g for PMMAC-MIC and 17.70 mg/g for PMMAC-NIC at 298 K temperature, the initial dye concentration was 100 mg/L. Thermodynamic parameters indicated that the removal of dye from PMMAC-MIC was endothermic and spontaneous. Besides, the regeneration of composite was recycled four times.

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Adsorption of aniline on aminated chitosan/graphene oxide composite material

Cited by 29 publications

References 15 publications

Preparation of GO/MIL-101(Fe,Cu) composite and its adsorption mechanisms for phosphate in aqueous solution

Preparation of GO/MIL-101(Fe,Cu) composite and its adsorption mechanisms for phosphate in aqueous solution

Fabrication of Multi-functionalized Graphene Oxide Doped Alginate Hybrid Spheres for Enhanced Fluoride Adsorption

Synthesis and characterization of molecularly imprinted composite as a novel adsorbent and competition with non-imprinting composite for removal of dye

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