Development of an adsorbent via chitosan nano-organoclay assembly to remove hexavalent chromium from wastewater

Kahraman, Havva Tutar

doi:10.1016/j.ijbiomac.2016.09.111

Cited by 57 publications

(18 citation statements)

References 35 publications

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“…Based on these models, important parameters were calculated, as shown in Table Ι . As seen from the Table Ι, the experimental data obtained were correlated very well to the Langmuir model based on R 2 values indicating homogeneous distribution of adsorptive sites and monolayer adsorption [6]. The maximum adsorption capacity of 16.64 mg of Cr 6+ /g for A-SCEM was obtained according to the Langmuir adsorption isotherm.…”

Section: Effect Of Initial Cr 6+ Ion Concentrationsupporting

confidence: 68%

“…Havva Tutar Kahraman, Ahmet Avcı, and Erol Pehlivan hydroxyl groups of glucose units and functional groups (acetamido, primary amino and/or hydroxyl groups) in its structure [6]. According to the results, the aminated sandwiched composite electro-spun membranes (A-SCEM) were then investigated as an adsorbent in a series of batch adsorption experiments to remove Cr 6+ ions.…”

Section: Preparation and Adsorption Behavior Of Novel Sandwichedmentioning

confidence: 99%

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Preparation and Adsorption Behavior of Novel Sandwiched Composite Electro-Spun Aminated Membrane for Hexavalent Chromium Removal

Kahraman¹,

Pehlivan²,

Avcı³

2018

IJCEA

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Section: Effect Of Initial Cr 6+ Ion Concentrationsupporting

confidence: 68%

Section: Preparation and Adsorption Behavior Of Novel Sandwichedmentioning

confidence: 99%

Preparation and Adsorption Behavior of Novel Sandwiched Composite Electro-Spun Aminated Membrane for Hexavalent Chromium Removal

Kahraman¹,

Pehlivan²,

Avcı³

2018

IJCEA

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“…In previously reported studies on the adsorption of Cr(VI) ions by chitosan composites, the highest adsorption capacity of 153.85 mg/g was reported [75]. In a further study, chitosan/organoclay composites were developed and the removal efficiency was also found to be less than an above-reported study that is 128.43 mg/g [76]. The adsorption capacity of chitosan can be varied by degree of deacetylation [77].…”

Section: Chitosan Composites For the Removal Of Heavy Metal Ionsmentioning

confidence: 84%

A Review on Chitosan for the Removal of Heavy Metals Ions

Zia¹,

Tabassum²,

Gong³

et al. 2019

JFBI

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There has recently been an increasing interest in water treatment methods as a result of growing concerns over shortages of clean water. This paper aims to review the past and present researches on chitosan for the adsorption of heavy metals from the wastewater. Adsorption is considered to be the most efficient method for the removal of metal impurities from drinking water. Chitosan, a deacetylated derivative of chitin, has many commercial applications due to its biocompatibility, nontoxicity, and biodegradability. Moreover, amine groups are present on the backbone of chitosan. For this reason, chitosan has been used for the adsorption of heavy metals. To begin with, mechanism of adsorption of heavy metal ions on chitosan and disadvantages of heavy metal ions were reviewed. Further, a detailed review had been done on the adsorption capacities of crosslinked chitosan, chitosan nanofibers, chitosan nanoparticles, chitosan composites, modified/pure chitosan, and porous chitosan. Lastly, research gaps and future recommendations were given for further development and accurate results of adsorption.

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“…A N U S C R I P T charge of natural clays limit their industrial applications. Single modifications of clays through acid activation [16], calcination [17], magnetization [18], and surfactant [19] or polymer activation [20] have attracted considerable interest. These modifications can contribute to the removal of heavy metals, organic pollutants, and cytotoxins owing to their higher surface area, pore volume, and content of functional groups (e.g., -NH2, -COOH, -OH) [3,[21][22][23][24].…”

Section: A C C E P T E D Mmentioning

confidence: 99%

A critical review of clay-based composites with enhanced adsorption performance for metal and organic pollutants

Han

Rafiq

Zhou

et al. 2019

Journal of Hazardous Materials

368

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Adsorption techniques offer unique advantages owing to the use of synthetic (e.g., nanosized metal oxides and polymer-functionalized nanocomposites) and natural (e.g., clay and biochar) materials for pollutant removal. Although the most widely used adsorbent is activated carbon, extensive studies have highlighted the promising potential of modified clay minerals and biochar for removing heavy metal and organic pollutants from industrial, drinking, and eutrophic wastewater, due to their low cost and easy accessibility. However, clay modification using acids, calcination, polymers, or surfactants exhibits relatively low absorption/regeneration ability towards antibiotics, aromatics, and various dyes. The coexistence of numerous contaminants in industrial wastewater inhibited the performance of adsorbents, which accelerated the development of novel modified clay composites such as clay-biochar, organobentonite/sodium alginate beads, and enhanced biochar. This review summarizes recent studies and absorption mechanisms concerning clay composites based on various modification methods and component materials. The comparison of clay composites used for the removal of organic and inorganic contaminants provides valuable insight into real wastewater treatment. Knowledge gaps, uncertainties, and future challenges involved in the fabrication and regeneration of modified clay composites are also identified.

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Development of an adsorbent via chitosan nano-organoclay assembly to remove hexavalent chromium from wastewater

Cited by 57 publications

References 35 publications

Preparation and Adsorption Behavior of Novel Sandwiched Composite Electro-Spun Aminated Membrane for Hexavalent Chromium Removal

Preparation and Adsorption Behavior of Novel Sandwiched Composite Electro-Spun Aminated Membrane for Hexavalent Chromium Removal

A Review on Chitosan for the Removal of Heavy Metals Ions

A critical review of clay-based composites with enhanced adsorption performance for metal and organic pollutants

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