Preparation and characterization of new succinic anhydride grafted Posidonia for the removal of organic and inorganic pollutants

Aguir, Chadlia; Khalfaoui, Mohamed; LARIBI, NAJAH; Farouk, M’henni Mohamed

doi:10.1016/j.jhazmat.2009.08.030

Cited by 39 publications

(12 citation statements)

References 53 publications

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“…These changes eventually indicate the successful incorporation of succinic anhydride into the AC solids [42]. Previous studies have shown that a new distinguished peak was observed at around 1730 cm −1 after the incorporation of succinic anhydride into posidonia and maize straw [35,43]. However, in this study, a new peak overlapped with the pre-existing peaks and caused an increase in the peak intensity.…”

Section: Characterization Of Materialscontrasting

confidence: 55%

“…Furthermore, the decrease in the intensities of the absorption band at 1042 cm −1 assigned for the C-O-C bond stretching suggests the succinylation of the AC [35,36]. observed at around 1730 cm −1 after the incorporation of succinic anhydride into posidonia and maize straw [35,43]. However, in this study, a new peak overlapped with the pre-existing peaks and caused an increase in the peak intensity.…”

Section: Characterization Of Materialscontrasting

confidence: 49%

“…At low pH, the percentage sorption of Hg(II) was relatively low, due to the competition between Hg 2+ and H + ions towards the same active sites on the functionalized-AC [38]. At higher pH values, the H + ions concentration is decreased, and observed at around 1730 cm −1 after the incorporation of succinic anhydride into posidonia and maize straw [35,43]. However, in this study, a new peak overlapped with the pre-existing peaks and caused an increase in the peak intensity.…”

Section: Batch Adsorption Experimentsmentioning

confidence: 99%

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Simultaneous Removal of Hg(II) and Phenol Using Functionalized Activated Carbon Derived from Areca Nut Waste

Lalhmunsiama

Lee

Choi

et al. 2017

Metals

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Areca nut waste was utilized to obtain high surface area activated carbon (AC), and it was further functionalized with succinic anhydride under microwave irradiation. The surface morphology and surface functional groups of the materials were discussed with the help of scanning electron microscope(SEM) images and fourier transform infra-red (FT-IR) analysis. The specific surface area of the AC and functionalized-AC was obtained by the Brunauer-Emmett-Teller (BET) method, and found to be 367.303 and 308.032 m 2 /g, respectively. Batch experiments showed that higher pH favoured the removal of Hg(II), whereas the phenol removal was slightly affected by the changes in the solution pH. The kinetic data followed pseudo-first order kinetic model, and intra-particle diffusion played a significant role in the removal of both pollutants. The maximum sorption capacity of Hg(II) and phenol were evaluated using Langmuir adsorption isotherms, and found to be 11.23 and 5.37 mg/g, respectively. The removal of Hg(II) was significantly suppressed in the presence of chloride ions due to the formation of a HgCl 2 species. The phenol was specifically adsorbed, forming the donor-acceptor complexes or π-π electron interactions at the surface of the solid. Further, a fixed-bed column study was conducted for both Hg(II) and phenol. The loading capacity of the column was estimated using the nonlinear Thomas equation, and found to be 2.49 and 2.70 mg/g, respectively. Therefore, the study showed that functionalized AC obtained from areca nut waste could be employed as a sustainable adsorbent for the simultaneous removal of Hg(II) and phenol from polluted water.

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Section: Characterization Of Materialscontrasting

confidence: 55%

Section: Characterization Of Materialscontrasting

confidence: 49%

Section: Batch Adsorption Experimentsmentioning

confidence: 99%

See 1 more Smart Citation

Simultaneous Removal of Hg(II) and Phenol Using Functionalized Activated Carbon Derived from Areca Nut Waste

Lalhmunsiama

Lee

Choi

et al. 2017

Metals

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“…However, a further increase of the DS values only provided a slight increase in the adsorption capacity, which may be caused by the equilibrium of the metal ions in solution and on the cellulose surface. [33,51]. The highest capacity for Cu 2+ adsorption (42.05 mg/g) was achieved by using the modified cellulose with a DS value of 1.002 when the pH value of the solution was 5.0.…”

Section: Resultsmentioning

confidence: 99%

Modification of Cellulose with Succinic Anhydride in TBAA/DMSO Mixed Solvent under Catalyst-Free Conditions

et al. 2017

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Homogeneous modification of cellulose with succinic anhydride was performed using tetrabutylammonium acetate (TBAA)/dimethyl sulfoxide (DMSO) mixed solvent. The molar ratio of succinic anhydride (SA) to free hydroxyl groups in the anhydroglucose units (AGU), TBAA dosage, reaction temperature, and reaction time were investigated. The highest degree of substitution (DS) value of 1.191 was obtained in a 10 wt% TBAA/DMSO mixed solvent at 60 °C for 60 min, and the molar ratio of SA/AGU was 6/1. The molar ratio of SA/AGU and the TBAA dosage showed a significant influence on the reaction. The succinoylated cellulose was characterized by ATR-FTIR, TGA, XRD, solid state CP/MAS 13C NMR spectroscopy (CP/MAS 13C NMR), and SEM. Moreover, the modified cellulose was applied for the adsorption of Cu2+ and Cd2+, and both the DS values of modified cellulose and pH of the heavy metal ion solutions affected the adsorption capacity of succinylated cellulose. The highest capacity for Cu2+ and Cd2+ adsorption was 42.05 mg/g and 49.0 mg/g, respectively.

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“…Among contaminants, heavy metals are the most harmful ones due to their hazardous effects on the environment [1]. For treatment of water and industrial wastewater containing heavy metals, dyes or other industrial organic compounds, different methods have been proposed, e.g., biological treatments, filtration by membrane, advanced oxidation processes, electrochemical methods and adsorption processes [2][3][4]. Among the adsorbent materials, hydrogels with porous structure attract a great deal of attention and count as a good candidate due to their three-dimensional crosslinked structure that can swell in water and trap the solute materials.…”

Section: Introductionmentioning

confidence: 99%

Hydrogel nanocomposite based on chitosan-g-acrylic acid and modified nanosilica with high adsorption capacity for heavy metal ion removal

et al. 2015

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Preparation and characterization of new succinic anhydride grafted Posidonia for the removal of organic and inorganic pollutants

Cited by 39 publications

References 53 publications

Simultaneous Removal of Hg(II) and Phenol Using Functionalized Activated Carbon Derived from Areca Nut Waste

Simultaneous Removal of Hg(II) and Phenol Using Functionalized Activated Carbon Derived from Areca Nut Waste

Modification of Cellulose with Succinic Anhydride in TBAA/DMSO Mixed Solvent under Catalyst-Free Conditions

Hydrogel nanocomposite based on chitosan-g-acrylic acid and modified nanosilica with high adsorption capacity for heavy metal ion removal

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