Physical and Electrochemical Characterization of Palm Kernel Shell Biochar (PKSB) as Supercapacitor

Ghani, Wan Azlina Wan Ab Karim; Fernandez, Praveen Shawn; Halele, Mohamad Qayyum; Sobri, Shafreeza; Jasni, Jasronita

doi:10.1051/matecconf/20166204003

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…Based on the D/G peak area ratio, the D-band peaks are significantly stronger than the G-band which indicates that most of the graphitic carbon is disordered [28]. Measuring the I D /I G may reveal the changes in biochar properties especially about the sp 2 bonding, typically of those concerning to the use of chemical reagents to modify the material [31].…”

Section: Raman Analysis For Pks Biocharmentioning

confidence: 99%

Evaluation of palm kernel shell biochar for the adsorption of Bacillus cereus

Ajeng¹,

Abdullah²,

Junia³

et al. 2021

Phys. Scr.

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Excessive use of agrochemicals caused by the increasing demand for food is a worrying issue in the developing nations. Thus, sustainable approach of using biochar as an inoculant carrier for the plant growth promoting rhizobacteria (PGPR) is receiving a considerable amount of attention. In the present study, suitability of palm kernel shell (PKS) biochar was assessed as an inoculant carrier for Bacillus cereus. A batch experiment was conducted to determine the time taken to reach the adsorption equilibrium, the ratio of bacteria to biochar required to reach maximum adsorption, and the adsorption capacity of PKS biochar. Taken together, our findings indicate that PKS biochar is a suitable inoculant carrier for B. cereus with 90% of maximum adsorption was achieved within 60 min, where the concentration of bacteria remained at 6.5×10 7 CFU/mL. The highest concentration of bacteria adsorbed (9.54´10 7 CFU ml −1 ) was observed when the ratio of bacteria to biochar was 100:7 (v w −1 ). The Langmuir and Freundlich isotherm model showed that PKS biochar is a suitable inoculant carrier for B. cereus (Q o =5´10 9 CFU g −1 of biochar; K F =2.80 ´10 5 ) with high correlation coefficient (R 2 ) value of 0.9765 and 0.9948 respectively. Our data fitted Freundlich isotherm, indicating that the adsorption of B. cereus on PKS biochar may occur on the heterogenous surface of biochar and not limited to monolayer formation. However, kinetic study shows data conforming to Elovich model suggesting that attachment of B. cereus onto PKS biochar may be in a monolayer fashion. Finally, some considerations on the application of biochar loaded with PGPR are also highlighted.

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Section: Raman Analysis For Pks Biocharmentioning

confidence: 99%

Evaluation of palm kernel shell biochar for the adsorption of Bacillus cereus

Ajeng¹,

Abdullah²,

Junia³

et al. 2021

Phys. Scr.

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“…Several studies on PKS characterization, carbonization, pyrolysis and gasification have been reported. In most of these studies; obtaining activated carbon between temperature of 500 to 900 °C was the focus of studies conducted by Ghani et al (2016); Yashim et al (2016) and Nicholas et al (2018). While others investigated the effects of carbonization at temperature of 500 to 700 or 900 °C on the char without activation (Daud et al, 2001;Yang et al, 2006;Okoroigwe and Saffron, 2012;Lee et al, 2017;Wang et al,2018).…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbonization Temperature on Properties of Char from Palm Kernel Shell

Sallau,

Jauro,

Kolo

et al. 2021

JSML

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The study investigates the effect of carbonization temperature of palm kernel shell (PKS) biomass, with a view to obtaining char suitable for electrode material. Char were obtained from palm kernel shell by carbonization at temperatures of 600, 800, 1000 and 1150 °C under inert condition for 60 mins each. The effect of carbonization temperature on proximate and ultimate, electrical conductivity, structural and morphological properties was investigated using the ASTM standard method for examination of coal and coke, elemental analyzer, four-point probe, x-ray diffractometer (XRD), Fourier transform infrared (FTIR) spectrometer and scanning electron microscope (SEM). The proximate analysis results showed the char yield to decrease from 29.68 % to 25.27 % as the temperature increases from 600 °C to 1150 °C. While the fixed carbon content in the raw sample was found as 22.22 %, it increases to 73.02 % in char obtained at 600 °C with highest value of 87.45 % obtained at 1150 °C. The volatile matter and moisture content values reduces with increase in temperature. An increase in carbonization temperature, also led to increase in elemental carbon content as well as improved electrical conductivity from 5.56 x 10-8 S/cm to 7.67 x 10-2 S/cm. Evidence of aromaticity and crystallinity towards graphitization was found from the FTIR and XRD analysis results. The results of electrical conductivity and XRD suggest possible use of the char obtained at 1150 °C for electrode material.

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Hybrid Hydrothermal Carbonization and Ultrasound Technology on Oil Palm Biomass for Hydrochar Production

et al. 2022

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The hybrid hydrothermal carbonization and ultrasound technology (HHTC‐Us) efficiently utilizes the function of both ultrasounds‐assisted and hydrothermal carbonization for hydrochar production. The HHTC‐Us of oil palm residues plays an essential role in hydrochar production. Hydrochar is a carbon‐rich material potentially produced from oil palm biomass, which has gained great interest due to its unique properties. Four main topics were highlighted: the production of crude palm oil and impacted biomass residue generation, properties and potential values of oil palm biomass conversion as hydrochar, hybrid hydrothermal carbonization reaction routes, and processing parameters that affect the HHTC‐Us technology. The review elucidates the promising production process or modification of hydrochar from oil palm biomass residues through hybrid technology. The technology potentially enhanced sustainability, creating challenges and new opportunities.

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Physical and Electrochemical Characterization of Palm Kernel Shell Biochar (PKSB) as Supercapacitor

Cited by 4 publications

References 13 publications

Evaluation of palm kernel shell biochar for the adsorption of Bacillus cereus

Evaluation of palm kernel shell biochar for the adsorption of Bacillus cereus

Effect of Carbonization Temperature on Properties of Char from Palm Kernel Shell

Hybrid Hydrothermal Carbonization and Ultrasound Technology on Oil Palm Biomass for Hydrochar Production

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