Efficient solid amino acid–clinoptilolite nanoparticles adsorbent for Mn(II) removal: A comprehensive study on designing the experiments, thermodynamic and kinetic aspects

Mehrali-Afjani, Meymanat; Nezamzadeh‐Ejhieh, Alireza

doi:10.1016/j.solidstatesciences.2020.106124

Cited by 57 publications

(10 citation statements)

References 60 publications

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“…In particular, natural CLP is being used in a Site Ion-EXchange effluent Plant SIEXP, City, UK [40]. Several studies were dedicated to assess the potential use of natural and synthetic zeolites as potential materials for radio-contaminants and metal ion removals [67][68][69][70][71][72][73][74][75][76][77][78][79][80][81][82][83][84]. The tested zeolites included natural zeolites, modified natural zeolites, nano-zeolites, and nano-zeolite-composites in the form of magnetic or polymeric materials.…”

Section: Application In Removing Radioactive Contaminantsmentioning

confidence: 99%

“…These results cover the removal of radio-contaminants and carbon dioxide, modification of zolites for its application as catalyst, and ion-exchange/sorption applications, including application of zeolites-nano-composites. Table 5a, b lists the investigations that addressed the use of nano-zeolite in metal removal [68][69][70][71][73][74][75][76][78][79][80][81][82][83][84]. The following remarks could be drawn from the table:…”

Section: Metal Removal Studiesmentioning

confidence: 99%

“…They are exothermic with a respective high change in enthalpy that falls in the range of a chemical reaction (∆H > 60 kJ/mol). Only two research works utilized the OFAT and MVT to study and optimize the removal process [82,84]. In research that compared the nano-zeolite with their polymeric composites, the analysis of the mechanism of metal ion removal in nano-zeolite-polymeric composites refers to the role of the polymeric composites in enhancing the removal by providing more active sites for the reactions.…”

mentioning

confidence: 99%

“…In research that compared the nano-zeolite with their polymeric composites, the analysis of the mechanism of metal ion removal in nano-zeolite-polymeric composites refers to the role of the polymeric composites in enhancing the removal by providing more active sites for the reactions. In case of Mn removal by CLP/Glutamic acid, the complexation with the organic active groups and zeolite sites were reported to be responsible for the sorption [82]. As the availability of the negative charges on the surface of the ion-exchanger/sorbent is essential for the successful application of the material in the cation removal, it should be noted that the presence of the magnetite/polymer affects the behavior of the sorbent at different pH [38,76,90].…”

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confidence: 99%

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Applications of Nano-Zeolite in Wastewater Treatment: An Overview

Rahman

El-Kamash

Hung

2022

Water

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Nano-zeolite is an innovative class of materials that received recognition for its potential use in water and tertiary wastewater treatment. These applications include ion-exchange/sorption, photo-degradation, and membrane separation. The aim of this work is to summarize and analyze the current knowledge about the utilization of nano-zeolite in these applications, identify the gaps in this field, and highlight the challenges that face the wide scale applications of these materials. Within this context, an introduction to water quality, water and wastewater treatment, utilization of zeolite in contaminant removal from water was addressed and linked to its structure and the advances in zeolite preparation techniques were overviewed. To have insights into the trends of the scientific interest in this field, an in-depth analysis of the variation in annual research distribution over the last decade was performed for each application. This analysis covered the research that addressed the potential use of both zeolites and nano-zeolites. For each application, the characterization, experimental testing schemes, and theoretical analysis methodologies were overviewed. The results of the most advanced research were collected, summarized, and analyzed to allow an easy visualization and comparison of these research results. Finally, the gaps and challenges that face these applications are concluded.

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Section: Application In Removing Radioactive Contaminantsmentioning

confidence: 99%

Section: Metal Removal Studiesmentioning

confidence: 99%

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confidence: 99%

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Applications of Nano-Zeolite in Wastewater Treatment: An Overview

Rahman

El-Kamash

Hung

2022

Water

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“…8) and from the intercept and slope the ΔHº and ΔSº values were calculated, then ΔGº values were estimated. The thermodynamic constants were tabulated in Table (4). The ΔGº values were found to be in the ranges of (-14.…”

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confidence: 99%

Adsorptive Removal of Manganese Ions From Polluted Aqueous Media by Glauconite Clay- Functionalized Chitosan Nanocomposites: Adsorption, Kinetic, Isotherm, and Thermodynamic Investigations

Nassar

El‐Shahat

et al. 2021

Preprint

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The presence of Mn(II) in water exceeding the permitted concentration declared by the World Health Organization (WHO) influences individuals, animals, and the ecosystem negatively. Therefore, there is a necessity for an efﬁcient material to eliminate this potentially toxic element from wastewater. We herein focused on an adsorptive removal of Mn(II) ions from polluted aqueous media using natural Egyptian glauconite clay (G) and its nanocomposites with a modified chitosan (CS). The applied chitosan was modified with glutaraldehyde (GL), ethylenediaminetetraacetic acid (EDTA), sodium dodecyl sulfate (SDS) and cetyltrimethyl ammonium bromide (CTAB). The utilized nanocomposites were referred to as GL-CS/G, EDTA-GL-CS/G, SDS-CS/G, and CTAB-CS/G, respectively. The points of zero charge values of the as-prepared materials were estimated. The adsorption properties of the G clay and its nanocomposites toward the removal of Mn(II) ions from polluted aqueous media as well as the adsorption mechanism were explored using a batch technique. The glauconite (G) and its nanocomposites: GL-CS/G, CTAB-CS/G, EDTA-GL-CS/G, and SDS-CS/G, exhibited maximum adsorption capacity values of 3.750, 24.11, 26.25, 27.15, and 27.74mgg-1, respectively. The adsorption results fitted well the Langmuir isotherm and pseudo-second-order kinetic models. The determined thermodynamic parameters revealed that the Mn(II) ion adsorption process was endothermic, spontaneous, and physisorption controlled. Furthermore, the obtained adsorption results are encouraging and revealing a great potentiality for using the modified adsorbents as accessible adsorbents for Mn(II) ions removal from polluted aqueous solutions, depending on their reusability, high stability and good adsorption capacities.

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