Preparation of activated carbon from babassu endocarpunder microwave radiation by physical activation

Salgado, Maria de Fátima; Abioye, Adekunle Moshood; Junoh, Muhammad Mat; Santos, João Alberto Porto; Ani, Farid Nasri

doi:10.1088/1755-1315/105/1/012116

Cited by 34 publications

(21 citation statements)

References 25 publications

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“…Interestingly, both AC/AlgPU1 and AC/AlgPU2 give more negative DSC value at this peak, which can be ascribed to the AC addition. This is in a good agreement with other studies [ 42 , 43 ].…”

Section: Resultssupporting

confidence: 94%

Polyurethane film prepared from ball-milled algal polyol particle and activated carbon filler for NH3–N removal

Marlina

Iqhrammullah

Saleha

et al. 2020

Heliyon

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This research offers a novel approach of free chemical preparation to obtain algae-based biopolyol through a ball milling method. The algae-based polyurethane (AlgPU) film was obtained from a casting solution made of ball-milled algal polyol particle and methylene diphenyl diisocyanate (MDI). The characteristics of the material had been investigated using Fourier Transform Infrared, Scanning Electron Microscopy – Electron Dispersive Spectroscopy, Differential Scanning Calorimetry, and Tensile Strength Analysis. The surface area was determined by Brunauer–Emmett–Teller (BET) isotherm, meanwhile the total pore volume was by Barrett-Joyner-Halenda (BJH) isotherm, based on the adsorption-desorption of N 2 . The addition of activated carbon contributed in the increase of functional group and surface area, which were important for the NH 3 –N removal. As a result, the adsorption capacity increased greatly after the addition of activated carbon (from 187.84 to 393.43 μg/g). The results also suggested AlgPU as a good matrix for immobilizing activated carbon filler. The adsorption shows a better fit with Langmuir isotherm model, with R 2 = 0.97487 and root-mean-square error (RMSE) = 33.91952, compared to Freundlich isotherm model (R 2 = 0.96477 and RMSE = 44.05388). This means the NH 3 –N adsorption followed the assumption of homogenous and monolayer adsorption, in which the maximum adsorption was found to be 797.95 μg/g. This research suggests the potential of newly developed material for NH 3 –N removal.

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Section: Resultssupporting

confidence: 94%

Polyurethane film prepared from ball-milled algal polyol particle and activated carbon filler for NH3–N removal

Marlina

Iqhrammullah

Saleha

et al. 2020

Heliyon

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“…According to table 4, the carbon content of bioadsorbents prepared under one-stage physical activation is lower than two-stage continuous physical activation. The increased carbon content was due to the thermal degradation of volatile components [68]. The highest carbon content for CS and PKS bioadsorbent was 69.12 and 65.11% when both bioadsorbents were activated at 600°C under N 2 > Air activation.…”

Section: Resultsmentioning

confidence: 99%

“…N 2 activation suggests the presence of higher amount of oxides or inorganic impurities formed at the surface of bioadsorbent. It is known that the presence of ash can affect the chemical characteristics and the adsorptive behaviour of activated carbon [68]. Thus, bioadsorbent with the low level of ash obtained via N 2 .…”

Section: Chns/o and Ash Contentmentioning

confidence: 99%

Production of bioadsorbent from phosphoric acid pretreated palm kernel shell and coconut shell by two-stage continuous physical activation via N ₂ and air

et al. 2018

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In the present study, agricultural biomass—palm kernel shell (PKS) and coconut shell (CS)—was used to produce high porosity bioadsorbent using two-stage continuous physical activation method with different gas carrier (air and N2) in each stage. The activation temperature was set constant at 600, 700, 800 or 900°C for both activation stages with the heating rate of 3°C min−1. Two parameters, the gas carrier and activation temperature, were determined as the significant factors on the adsorption properties of bioadsorbent. BET, SEM, FTIR, TGA, CHNS/O and ash content were used to elucidate the developed bioadsorbent prepared from PKS and CS and its capacity towards the adsorption of methylene blue and iodine. The novel process of two-stage continuous physical activation method was able to expose mesopores and micropores that were previously covered/clogged in nature, and simultaneously create new pores. The synthesized bioadsorbents showed that the surface area (PKS: 456.47 m2 g−1, CS: 479.17 m2 g−1), pore size (PKS: 0.63 nm, CS: 0.62 nm) and pore volume (PKS: 0.13 cm3 g−1, CS: 0.15 cm3 g−1) were significantly higher than that of non-treated bioadsorbent. The surface morphology of the raw materials and synthesized bioadsorbent were accessed by SEM. Furthermore, the novel process meets the recent industrial adsorbent requirements such as low activation temperature, high fixed carbon content, high yield, high adsorption properties and high surface area, which are the key factors for large-scale production of bioadsorbent and its usage.

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“…It is defined as the change of mass in the sample measured as a function of temperature/time. It gives information on thermal stability, differences in sample composition, and kinetic chemical reactions of the material 33 . The weight loss of the activated carbon sample at different temperatures is indicated by different zones, viz., (a), (b), (c), and (d).…”

Section: Characterization Of Activated Carbonmentioning

confidence: 99%

“…It gives information on thermal stability, differences in sample composition, and kinetic chemical reactions of the material. 33 The weight loss of the activated carbon sample at different temperatures is indicated by different zones, viz., carbon sample is thermally stable up to a temperature of 740°C. At this temperature, it starts losing its weight and elucidates that the decomposition begins in the activated carbon sample.…”

Section: Tga and Dsc Analyses Tga Analysismentioning

confidence: 99%

Preparation, characterization, and performance of activated carbon for CO₂ adsorption from CI engine exhaust

2022

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Mitigation of carbon dioxide (CO 2 ) from various sources is a major challenge in the world today. Apart from attempts to control CO 2 emissions from large CO 2 emitting sources such as coal-fired power plants and significant fossil fuel-consuming industries, there have also been attempts made to control CO 2 in internal combustion (IC) engines. Compression ignition (CI) engines find their applications mainly in automotive vehicles, decentralized power generation units, standby power requirements in hospitals and educational institutions. In recent years, there has been a great interest in developing eco-friendly and low-cost adsorbents for CO 2 capture via the adsorption method. This investigation explores the possibility of using activated carbon obtained from coconut shell for capturing CO 2 in a CI engine exhaust. Surface texture characteristics and physicochemical properties of the coconut shell-based activated carbon are determined for their suitability as a potential adsorbent for CO 2 adsorption. Furthermore, an attempt is made to combine a postcombustion carbon capture device in a CI engine. For this purpose, an in-house fabricated adsorption chamber is packed with activated carbon and attached to a single-cylinder, four-stroke, naturally aspirated, direct injection (DI) diesel engine exhaust. The test engine is operated on two different fuels; (i) diesel (D100) and (ii) biodiesel-diesel blend comprising 20% of Jatropha methyl ester (JME) and 80% of diesel (JME20). The engine performance and CO 2 emission without and with the adsorption chamber are evaluated for D100 and JME20 operations. Further, the performance parameters of the adsorption chamber packed with activated carbon are also evaluated in both fuel operations. The results are analyzed, discussed, and presented in this paper.

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Preparation of activated carbon from babassu endocarpunder microwave radiation by physical activation

Cited by 34 publications

References 25 publications

Polyurethane film prepared from ball-milled algal polyol particle and activated carbon filler for NH3–N removal

Polyurethane film prepared from ball-milled algal polyol particle and activated carbon filler for NH3–N removal

Production of bioadsorbent from phosphoric acid pretreated palm kernel shell and coconut shell by two-stage continuous physical activation via N ₂ and air

Preparation, characterization, and performance of activated carbon for CO₂ adsorption from CI engine exhaust

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Preparation of activated carbon from babassu endocarpunder microwave radiation by physical activation

Cited by 34 publications

References 25 publications

Polyurethane film prepared from ball-milled algal polyol particle and activated carbon filler for NH3–N removal

Polyurethane film prepared from ball-milled algal polyol particle and activated carbon filler for NH3–N removal

Production of bioadsorbent from phosphoric acid pretreated palm kernel shell and coconut shell by two-stage continuous physical activation via N 2 and air

Preparation, characterization, and performance of activated carbon for CO2 adsorption from CI engine exhaust

Contact Info

Product

Resources

About

Production of bioadsorbent from phosphoric acid pretreated palm kernel shell and coconut shell by two-stage continuous physical activation via N ₂ and air

Preparation, characterization, and performance of activated carbon for CO₂ adsorption from CI engine exhaust