Activated carbon from Diplotaxis Harra biomass: Optimization of preparation conditions and heavy metal removal

Tounsadi, Hanane; Khalidi, A.; Abdennouri, Mohamed; Barka, Noureddine

doi:10.1016/j.jtice.2015.08.014

Cited by 57 publications

(19 citation statements)

References 41 publications

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“…The well-developed pore structure similar to honeycomb were distributed on the original AC surface which was smooth, pore edge was clearly visible, the hole wall was smooth, on which there were varying amounts of pores distributed, as well as part of the site of fracture or collapse, forming larger pore size. NF were corroded in the acidic environment provided by the phosphoric acid activator, the pore wall became thin after high temperature activation29.…”

Section: Resultsmentioning

confidence: 99%

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The application of homemade Neosinocalamus affinis AC in electrokinetic removal technology on heavy metal removal from the MSWI fly ash

Liu

Huang

et al. 2016

Sci Rep

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This present paper was focused on the manufacture of activated carbon (AC) and its application in the electrokinetic remediation (EKR) technology on removal of the heavy metals (HMs) from the municipal solid waste incineration fly ash. AC was produced from Neosinocalamus affinis (NF) by chemical activation with H3PO4 in N2 atmosphere, the effects of activation temperatures, soaking time and impregnation ratios on the adsorption capacity of AC on HMs were examined through equilibrium adsorption experiments. The AC produced under the condition of 450 °C of activation temperature, 10 h of soaking time and 1.5 of impregnation ration was applied in the EKR experiment. The addition of AC in the S3-region of the electrolyzer could effectively improve the removal efficiencies of HMs. The technical parameters of voltage gradient, processing time and proportion were further optimized in the coupled experiments, the maximum removal of Cu, Zn, Cd, and Pb was 84.93%, 69.61%, 79.57%, and 78.55% respectively obtained under the optimal operating conditions of 2 V/cm of voltage gradient, 8 d of processing time and 20% of proportion.

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Section: Resultsmentioning

confidence: 99%

“…The fixation of HMs can be enhanced by changing the molding conditions to modify its surface properties. In most reported cases, chemical activation is preferred to getting better porous AC2930.…”

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confidence: 99%

The application of homemade Neosinocalamus affinis AC in electrokinetic removal technology on heavy metal removal from the MSWI fly ash

Liu

Huang

et al. 2016

Sci Rep

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“…In addition, using biomass as a feedstock also affords a facile route to tailor the pore structures of the activated carbon bers. [17][18][19] Coconut ber is a natural lamentous material extracted from coconut shell, which can be used as ropes, brushes, cushions, mattress and ber lter due to its abundance, non-toxic nature and good mechanical properties. [20][21][22] In spite of numerous scientic, technological and economic benets, coconut bers are unfortunately scarcely utilized in developing countries.…”

Section: Introductionmentioning

confidence: 99%

Coconut-based activated carbon fibers for efficient adsorption of various organic dyes

et al. 2018

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“…This can be ascribed to the enhancement of the ions migration to the absorbent surface by the increased concentration [14] [22 -24]. But it is lower than the result of Tounsadi [25] (31.6 mg/g of AC from Diplotaxis Harra biomass). The Cd 2+ adsorption capacity = -2.20486 + 7.8235*x + 4.3428*y -0.834083*x*x + 0.125167*x*y -0.186587*y*y…”

Section: Resultsmentioning

confidence: 99%

SURFACE MODIFICATION OF ACTIVATED CARBON FROM RICE HUSK FOR ENHANCING THE NICKEL(Ni2+) AND CADMIUM (Cd2+) ADSORPTION CAPACITY

Thai¹

2018

JST

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Activated carbon (AC) has been proven to be an effective adsorbent for the removal of a variety of pollutants. AC is extensively used for adsorption because its high surface area is welldeveloped internal micro porosity. The objective of this study is to determine the optimal condition of the surface modification process of activated carbon from rice husk (ACRH) using HNO 3 . That increase the functional group, and improve affinity towards certain contaminants of ACRH for increasing the adsorption capacity of Ni 2+ and Cd 2+. Two factors were taken into account as: the concentration of HNO 3 (1, 3, and 5 M), reaction time (1, 2, 3, 4 and 5 hours). The results showed that the optimal condition of the surface modification process was derived at the equilibrium concentration of HNO 3 = 3 M and the equilibrium reaction time = 4 hour. Interestingly, in comparison with the control sample (ACRH not modified), the adsorption capacity of Ni 2+ and Cd 2+ increased from 10.0 to 17.2 mg/g and 10.4 to 29.6 mg/g, respectively.This adsorption capacity of modified ACRH shows the increase significantly.

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Activated carbon from Diplotaxis Harra biomass: Optimization of preparation conditions and heavy metal removal

Cited by 57 publications

References 41 publications

The application of homemade Neosinocalamus affinis AC in electrokinetic removal technology on heavy metal removal from the MSWI fly ash

The application of homemade Neosinocalamus affinis AC in electrokinetic removal technology on heavy metal removal from the MSWI fly ash

Coconut-based activated carbon fibers for efficient adsorption of various organic dyes

SURFACE MODIFICATION OF ACTIVATED CARBON FROM RICE HUSK FOR ENHANCING THE NICKEL(Ni2+) AND CADMIUM (Cd2+) ADSORPTION CAPACITY

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