Removal of Ag(I) and Zn(II) ions from single and binary solution using sulfonated form of gum arabic-powdered mushroom composite hollow semispheres: Equilibrium, kinetic, thermodynamic and ex-situ studies

Das, Devlina; Raghavan, Vimala; Das, Nilanjana

doi:10.1016/j.ecoleng.2014.11.037

Cited by 14 publications

(2 citation statements)

References 26 publications

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“…Indeed, the presences of hydroxyl and amine groups bring high reactivity to these materials for chemical grafting. Functionalized Arabic gum (frequently associated to other biopolymer) has also been investigated for metal sorption [25,[35][36][37][38][39][40]. Arabic gum was also used as support for designing active materials with antimicrobial properties by deposition of metal oxide nanoparticles [41].…”

Section: Characterization Of Sorbentmentioning

confidence: 99%

Functionalized biobased composite for metal decontamination – Insight on uranium and application to water samples collected from wells in mining areas (Sinai, Egypt)

Hamza

Fouda

Wei

et al. 2022

Chemical Engineering Journal

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Section: Characterization Of Sorbentmentioning

confidence: 99%

Functionalized biobased composite for metal decontamination – Insight on uranium and application to water samples collected from wells in mining areas (Sinai, Egypt)

Hamza

Fouda

Wei

et al. 2022

Chemical Engineering Journal

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“…where K L = Langmuir equilibrium constant (L/mg) related to the free energy of analyte uptake, q m = Langmuir maximum adsorption capacities (mg/g), and C e is the instantaneous concentration (mg/L) [49]. The Freundlich isotherm model and its linearized forms are presented in Equations ( (5)- (6)) [55]:…”

Section: Adsorption Isothermmentioning

confidence: 99%

Retention Profile of Zn<sup>2+</sup> and Ni<sup>2+</sup> Ions from Wastewater onto Coffee Husk: Kinetics and Thermodynamic Study

Alhogbi¹,

Al-Enazi²

2018

JEAS

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In this work, Coffee husk (CH) was used as a solid phase extractor (SPE) for removal and/or minimization of Zn 2+ and Ni 2+ ions in aqueous media. XRD, FESEM and FTIR analysis of the SPE were performed for surface morphology and function groups characterisation. Batch mode adsorption studies were performed by varying the operational parameters such as adsorbent dose, solution pH, initial analyte concentration and contact time. The equilibrium data of both analytes was found a better fit with the Langmuir and Freundlich isotherm models. The q m of Langmuir for Zn 2+ and Ni 2+ ions were 12.987 and 11.11 mg/g, respectively. The adsorption capacities of the CH adsorbent towards Zn 2+ and Ni 2+ resulted of 12.53 and 10.33 mg/g, respectively. In addition, the kinetic data of Zn 2+ and Ni 2+ ions uptake revealed that the present system fitted well with pseudo-second-order kinetic model (R 2 > 0.99). Thermodynamic studies showed that the retention step was exothermic, and spontaneous in nature. The results indicated that the coffee husk provides an effective and economical approach in highly reducing or almost eradication of both metals Zn 2+ and Ni 2+ from the aqueous solution.

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Agro‐Industrial Wastes Composites as Novel Adsorbents

Bhatti

Kamal

Iqbal

2017

Advanced Materials for Wastewater Treatment

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Defective green coffee (DGC), coffee silverskin (CS) and spent coffee grounds (SCG), three major byproducts of the coffee industry, were magnetically modified by treatment with an aqueous ferrofluid containing magnetite nanoparticles and characterized by SEM, XRD and FTIR. In order to assess their suitability as adsorbents for the removal of pollutants from wastewaters, adsorption and regeneration studies were carried out using methylene blue as a model contaminant. All the materials exhibited high adsorption capacity and the adsorption rate varied in the order: CS > SCG > DGC. In addition, their adsorption capacity remained almost unchanged for at least six adsorption/desorption cycles. These results strongly support their use as new low-cost adsorbents for environmental applications.

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Removal of Ag(I) and Zn(II) ions from single and binary solution using sulfonated form of gum arabic-powdered mushroom composite hollow semispheres: Equilibrium, kinetic, thermodynamic and ex-situ studies

Cited by 14 publications

References 26 publications

Functionalized biobased composite for metal decontamination – Insight on uranium and application to water samples collected from wells in mining areas (Sinai, Egypt)

Functionalized biobased composite for metal decontamination – Insight on uranium and application to water samples collected from wells in mining areas (Sinai, Egypt)

Retention Profile of Zn<sup>2+</sup> and Ni<sup>2+</sup> Ions from Wastewater onto Coffee Husk: Kinetics and Thermodynamic Study

Agro‐Industrial Wastes Composites as Novel Adsorbents

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Removal of Ag(I) and Zn(II) ions from single and binary solution using sulfonated form of gum arabic-powdered mushroom composite hollow semispheres: Equilibrium, kinetic, thermodynamic and ex-situ studies

Cited by 14 publications

References 26 publications

Functionalized biobased composite for metal decontamination – Insight on uranium and application to water samples collected from wells in mining areas (Sinai, Egypt)

Functionalized biobased composite for metal decontamination – Insight on uranium and application to water samples collected from wells in mining areas (Sinai, Egypt)

Retention Profile of Zn&lt;sup&gt;2+&lt;/sup&gt; and Ni&lt;sup&gt;2+&lt;/sup&gt; Ions from Wastewater onto Coffee Husk: Kinetics and Thermodynamic Study

Agro‐Industrial Wastes Composites as Novel Adsorbents

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Retention Profile of Zn<sup>2+</sup> and Ni<sup>2+</sup> Ions from Wastewater onto Coffee Husk: Kinetics and Thermodynamic Study