Chemically activated carbon from lignocellulosic wastes for heavy metal wastewater remediation: Effect of activation conditions

Nayak, Arunima; Bhushan, Brij; Gupta, Vartika; Sharma, Pradeep Kumar

doi:10.1016/j.jcis.2017.01.031

Cited by 191 publications

(78 citation statements)

References 42 publications

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“…This development of porosity increased until it reached its maximum at 900 °C. However, when the temperature increased to 1000 °C, a loss in surface properties was observed due to the shrinkage of the pores and the re-alignment of the carbonaceous structure [44]. The effect of the pyrolysis time was analysed by maintaining this calcination temperature (Figure 2b).…”

Section: Resultsmentioning

confidence: 99%

Almond Shell as a Microporous Carbon Source for Sustainable Cathodes in Lithium–Sulfur Batteries

et al. 2018

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A microporous carbon derived from biomass (almond shells) and activated with phosphoric acid was analysed as a cathodic matrix in Li–S batteries. By studying the parameters of the carbonization process of this biomass residue, certain conditions were determined to obtain a high surface area of carbon (967 m2 g−1) and high porosity (0.49 cm3 g−1). This carbon was capable of accommodating up to 60% by weight of sulfur, infiltrated by the disulphide method. The C–S composite released an initial specific capacity of 915 mAh g−1 in the Li–S cell at a current density of 100 mA g−1 with a high retention capacity of 760 mAh g−1 after 100 cycles and a coulombic efficiency close to 100%. The good performance of the composite was also observed under higher current rates (up to 1000 mA g−1). The overall electrochemical behaviour of this microporous carbon acting as a sulfur host reinforces the possibility of using biomass residues as sustainable sources of materials for energy storage.

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Section: Resultsmentioning

confidence: 99%

Almond Shell as a Microporous Carbon Source for Sustainable Cathodes in Lithium–Sulfur Batteries

et al. 2018

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“…Activated carbon (AC) is an efficient material known for its significant adsorption performance, surface area, and cost efficiency. The aforementioned features make AC a promising material for the adsorption of several grafting agents, such as phenolic compounds (Kumar & Jena, ; Yangui & Abderrabba, ), heavy metals in waste water treatment (Kołodyńska, Krukowska, & Thomas, ; Nayak, Bhushan, Gupta, & Sharma, ), dyes (Tseng, Wu, & Juang, ), and other compounds. Accordingly, the adsorption capacity of AC for aromatic compounds depends on some factors including the physical nature of the adsorbent, functional groups, pore size and ash level, the structure of the adsorbate, p k a , functional groups of the adsorbate, size and molecular weight, and finally the solution circumstances like pH, ionic strength plus the amount of the adsorbate.…”

Section: Introductionmentioning

confidence: 99%

Development of ternary nanoadsorbent composites of graphene oxide, activated carbon, and zero‐valent iron nanoparticles for food applications

Bagheri

Jafari

Eikani

2019

Food Science & Nutrition

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In this study, a ternary nanocomposite comprising graphene oxide and carbon loaded with zero‐valent iron nanoparticles was developed as a promising nanoadsorbent, especially for polyphenols available in food industry by‐products. The fabricated nanoadsorbents were characterized in terms of structural, morphological, and chemical attributes. Zero‐valent iron nanoparticles (nZVI) were produced by a modified method leading to the formation of nanoparticles below 50 nm. Also, active carbon was transformed to a needle‐like shape instead of its native shape so that the active surface area was drastically increased which favors the higher adsorption process. Moreover, the space between graphene oxide sheets was enhanced by ultrasonication so that more active carbon and nZVIs could be oriented between these sheets. Finally, the FTIR and Raman data demonstrated the formation of O‐H stretching groups and a D/G value of 0.85 corresponding to the maintenance of a desired structure of the graphene oxide sheets, respectively. To summarize, the developed nanocomposites can be employed as a promising tool for the adsorbance of food and beverage industry by‐products, especially polyphenols.

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“…Islam et al [16] prepared a kind of mesoporous activated carbon to adsorb Methylene Blue (MB) dye. Nayak et al [23] prepared an activated carbon containing zinc chloride impregnated carbon (CASD-ZnCl 2 ) and potassium hydroxide impregnated carbon (CASD-KOH), used for the adsorption of cadium(II) and nickel (II). However, the inherent deficiencies of activated carbon, for instance, its weak removal ability for the majority of polar organics [17], long adsorption time [18], low cycle utilisation (due to the harsh regeneration processing conditions and huge costs) [19,20], and higher operating costs [21,22] , significantly limit their development and application.…”

Section: Introductionmentioning

confidence: 99%

Efficient adsorption of dyes from aqueous solution by poly(vinyl alcohol‐co‐ethylene) nanofibre membranes modified with β‐cyclodextrin

Wen

Fan

Zhu

et al. 2019

Coloration Technology

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In this paper, highly absorbent poly(vinyl alcohol-co-ethylene) nanofibre membranes modified by b-cyclodextrin were prepared to adsorb dyestuff from water, and 1,2,3,4-butanetetra carboxylic acid was used as a crosslinking agent, which greatly enhanced the adsorption capacity of the modified membranes. Field emission scanning electron microscopy and Fourier Transform-infrared spectroscopy were used to characterise the surface morphology and chemical structures of the membranes. Methylene Blue (MB) was used as the main adsorbed dye. The effect of pH value and concentration of the MB solution were also investigated, and equilibrium adsorption reached 139.2 mg/g when the pH value was 10.0. The adsorption process fitted well with the Langmuir adsorption isotherm model and was in accord with the pseudo-secondorder kinetic model. Moreover, the modified membranes proved to have selective adsorption, especially for some cationic dyes other than MB, and had the potential to be recycled multiple times.

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Chemically activated carbon from lignocellulosic wastes for heavy metal wastewater remediation: Effect of activation conditions

Cited by 191 publications

References 42 publications

Almond Shell as a Microporous Carbon Source for Sustainable Cathodes in Lithium–Sulfur Batteries

Almond Shell as a Microporous Carbon Source for Sustainable Cathodes in Lithium–Sulfur Batteries

Development of ternary nanoadsorbent composites of graphene oxide, activated carbon, and zero‐valent iron nanoparticles for food applications

Efficient adsorption of dyes from aqueous solution by poly(vinyl alcohol‐co‐ethylene) nanofibre membranes modified with β‐cyclodextrin

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