Effect of hard and soft structure of different biomasses on the porosity development of activated carbon prepared under N2/microwave radiations

Mechati, Fedia; Bouchelta, Chafia; Medjram, Mohamed Salah; Benrabaa, Rafik; Ammouchi, Nesrine

doi:10.1016/j.jece.2015.07.007

Cited by 23 publications

(6 citation statements)

References 62 publications

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“…To increase the surface area of the AC, it is suggested that the carbonizate obtained from the agricultural raw material processing waste, including the apricot kernels, be activated by microwave radiation. It was found out that the AC made of apricot kernels has the specific surface area, determined by the BET method, of 529 m 2 /g, and the total pore and micropore volumes were 0.26 and 0.19 cm 3 /g, respectively [ 52 ]. The application of microwave radiation as an activation method considerably reduces energy consumption and activation time in comparison with conventional methods.…”

Section: Resultsmentioning

confidence: 99%

Removing Pollutants from Sewage Waters with Ground Apricot Kernel Shell Material

et al. 2022

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For the first time, a comprehensive review of the literature data on the use of apricot (Prunus armeniaca) biomass components as a sorption material for the treatment of wastewater and environmental water from various pollutants is carried out in the present study. In addition to a comprehensive analysis of contemporary studies, the current work carried out its own microstructural and energy dispersive studies. It shows that apricot kernel shell is a promising raw material for obtaining sorption materials that can be used to extract various pollutants from aqueous media. The parameters of sorption interaction are presented, at which the highest rate of removal of pollutants was achieved. It is shown that the sorption capacity of apricot biomass components can be increased by modifying it with various chemical reagents, as well as other physical and physicochemical methods. We reveal that most publications consider the use of the latter as a raw material for the production of activated carbons. It is established that the surface area and total pore space of activated carbons from apricot kernel shells depend on the modes of carbonization and activation. It is shown that activated carbons are effective adsorbents for removing various pollutants (metal ions, dyes, oil and oil products) from aqueous media. It was found that the adsorption isotherms of pollutants in most cases are best described by the Langmuir and Freundlich models, and the process kinetics is most often described by the pseudo-second-order model. The possibility of improving the sorption characteristics of apricot biomass during chemical or physicochemical treatment is also shown.

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Section: Resultsmentioning

confidence: 99%

Removing Pollutants from Sewage Waters with Ground Apricot Kernel Shell Material

et al. 2022

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“…As a consequence, the use of low-cost and sustainable precursors, including agricultural wastes (as for example rice husk, corn straw and bagasse) and other solid wastes (as for example garden waste and sludge) to prepare AC [ 229 ] gained attention for the economic feasibility of large scale production. In this frame, F. Mechati et al obtained different AC able to efficiently remove methylene blue from aqueous solutions [ 230 ]. Vegetable wastes were activated with H2SO4 and further pyrolysed in inert nitrogen atmosphere under MW (400 to 650 W) for 3-6 min.…”

Section: Microwaves To Prepare Activated Carbonsmentioning

confidence: 99%

From waste biomass to chemicals and energy via microwave-assisted processes

et al. 2019

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“…Freundlich isotherm is settled on the assumption of a heterogeneous surface with a non-uniform heat distribution of the sorption on the surface [22,23].…”

Section: Freundlich Isotherm Modelmentioning

confidence: 99%

Removal of Methylene Blue by Adsorption onto Activated Carbons Produced from Agricultural Wastes by Microwave Induced KOH Activation

Kahoul¹,

Bougdah²,

Djazi³

et al. 2019

ChChT

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The present study aims to describe new low cost activated carbons which were prepared from bean peel (BP), acorn peel (AP) and Pistacia lentiscus (PL) under microwave induced KOH chemical activation for the removal of methylene blue dye from aqueous solutions. Activated carbons were characterized using, thermogravimetric analysis, and scanning electron microscopy. The adsorption properties were examined considering several parameters including the effect of pH, contact time, adsorbent dosage and initial concentration. Activated carbons powders prepared from BP, AP and PL can be used as an eco-efficient and low-cost adsorbent for removing methylene blue dye from aqueous solution by adsorption process.

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Effect of hard and soft structure of different biomasses on the porosity development of activated carbon prepared under N2/microwave radiations

Cited by 23 publications

References 62 publications

Removing Pollutants from Sewage Waters with Ground Apricot Kernel Shell Material

Removing Pollutants from Sewage Waters with Ground Apricot Kernel Shell Material

From waste biomass to chemicals and energy via microwave-assisted processes

Removal of Methylene Blue by Adsorption onto Activated Carbons Produced from Agricultural Wastes by Microwave Induced KOH Activation

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