The potential of activated carbon derived from bio-char waste of bio-oil pyrolysis as adsorbent

Zulkania, Ariany; Hanum, Ghina F.; Rezki, Amelia Sri

doi:10.1051/matecconf/201815401029

Cited by 21 publications

(16 citation statements)

References 11 publications

(12 reference statements)

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“…A limit of 15 % has been specified for activated carbon by the Indonesian Industrial Standard (SII No. 0258-88) (Zulkania et al, 2018). This corroborates why AC-T is the most active adsorbent.…”

Section: Fig 3 -The Ftir Bands Of Ac-t (A) Prior To Pb(ii) Adsorption; (B) After Pb(ii) Adsorptionsupporting

confidence: 74%

Adsorption of Aqueous Using Granular Adsorbents from Accanthospermum hispendum DC

Zubair

Gaya

2021

JST

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Granular activated carbons have been important adsorbents for the decontamination of aqueous environmental contaminants. Acanthospermum hispidum weed represents a ready available source of low-cost adsorbents in sub-Saharan Africa that has barely been paid attention. The effects of pH, contact time, concentration, adsorbent dosage, particle size and temperature on the adsorptive removal of Pb (II) from aqueous solutions over activated carbon granules from the thorns of Accanthospermum hispindum (AC-T) were for the first time investigated and compared with those of the leaves (L), the sodium hydroxide modified thorns (NaOH-T) and regular thorns (T) of this plant. These adsorbents were characterised by the surface charge analysis, scanning electron microscopy (SEM) and the Attenuated Total Reflectance Fourier Transform infrared (ATR FTIR) spectroscopy. The SEM revealed a wafer-like appearance for the AC-T with a large distribution of open pores. The adsorption data of lead uptake onto the adsorbents were examined using two pseudo-order kinetic schemes and three isotherm models. To fully understand the adsorption capacities of the adsorbents, batch desorption recoveries were studied. The FTIR depicted the various functionalities responsible for the adsorption. Adsorption over AC-T was found to agree with pseudo second-order kinetic scheme, the Langmuir and Freundlich isotherm. This material exhibited the highest adsorption capacity. The order of reusability of the adsorbents is T < AC-T < NaOH-T.

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Section: Fig 3 -The Ftir Bands Of Ac-t (A) Prior To Pb(ii) Adsorption; (B) After Pb(ii) Adsorptionsupporting

confidence: 74%

Adsorption of Aqueous Using Granular Adsorbents from Accanthospermum hispendum DC

Zubair

Gaya

2021

JST

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“…e moisture and ash content of the samples were determined by using the ASTM D2867-91 technique [29] and the ASTM D2866-94 method [30], respectively. e volatile matter was determined following the method employed by Zulkania et al [31]. e fixed carbon of samples was calculated by subtracting the total of moisture content, ash content (percent), and volatile matter (percent) from 100 [31].…”

Section: Physicochemical Characteristicsmentioning

confidence: 99%

“…e volatile matter was determined following the method employed by Zulkania et al [31]. e fixed carbon of samples was calculated by subtracting the total of moisture content, ash content (percent), and volatile matter (percent) from 100 [31].…”

Section: Physicochemical Characteristicsmentioning

confidence: 99%

Removal of Cr(VI) from Aqueous Solutions Using Biowastes: Tella Residue and Pea (Pisum sativum) Seed Shell

Kebede

Kedir

Melak

et al. 2022

The Scientific World Journal

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The wide use of chromium (Cr) in different industries led to the release of a considerable amount of Cr(VI) into water bodies. Exposure to Cr(VI) can cause diseases in humans and animals. Therefore, low-cost technology for Cr(VI) removal is required. In this study, the biowastes, “Tella” residue (TR) and Pea (Pisum sativum) seed shell (PSS), were evaluated for their Cr(VI) removal efficiency from aqueous solutions. The physicochemical properties of adsorbents were studied, and the adsorbents were further characterized using FTIR and XRD. Batch adsorption experiments have shown that the Cr(VI) uptake was pH-dependent and found to be effective in a wide range of pH values (pH 1 to 10) for PSS. The kinetics of Cr(VI) removal by the adsorbents was well expressed by the pseudo-second-order model. The experimental equilibrium adsorption data fitted well with Freundlich isotherm indicating multilayers adsorption. The estimated Cr(VI) adsorption capacities of TR and PSS were 15.6 mg/g and 8.5 mg/g, respectively. On top of this, the possibility of reusing adsorbents indicates the potential applicability of TR and PSS for the treatment of Cr(VI) contaminated water. Further study on the evaluation of the efficiency of the adsorbents using real chromium-contaminated wastewater is recommended.

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“…Activated carbon with neutral pH is favoured for accumulation of methylene blue dye (Baseri et al 2012). As stated by Zulkania et al (2018), the pH value of commercial activated carbon is neutral to slightly alkaline which is around 7.5 to 9. The iodine number indicates adsorption capacity, reflecting the amount of micropores with diameters larger than 1 nm.…”

Section: Effect Of Deashing Treatments On the Adsorption Properties Of The Activated Carbonmentioning

confidence: 95%

Refining micropore capacity of activated carbon derived from coconut shell via deashing post-treatment

Chin¹,

Lee²,

H’ng³

et al. 2020

BioRes

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The discovery of new methods to control porosity and microarchitecture may lead to the refinement of carbon materials from lignocellulose as advanced functional materials. However, the high ash content on the surface of lignocellulosic biomass reduces the surface area and adsorption properties of the activated carbon. This study presents a novel approach, using a deashing post-treatment as the pore generator, to increase the quality of the activated carbon. The micropore capacity was improved by deashing post-treatment with distilled water, where 80% of the total pore ratio of the activated carbon was occupied with micropores. Ultrasonic treatment was able to penetrate deeper into the structure of coconut shell activated carbon, creating cavities and pores, thus increasing the surface area. Understanding the effects of these new controlling methods on pore refinement can elucidate the microporous fabrication of other activated carbons from high ash-content lignocellulosic biomass.

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The potential of activated carbon derived from bio-char waste of bio-oil pyrolysis as adsorbent

Cited by 21 publications

References 11 publications

Adsorption of Aqueous Using Granular Adsorbents from Accanthospermum hispendum DC

Adsorption of Aqueous Using Granular Adsorbents from Accanthospermum hispendum DC

Removal of Cr(VI) from Aqueous Solutions Using Biowastes: Tella Residue and Pea (Pisum sativum) Seed Shell

Refining micropore capacity of activated carbon derived from coconut shell via deashing post-treatment

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