Development and Characterization of Activated Carbons Derived from Lignocellulosic Material

Negara, Dewa Ngakan Ketut Putra; Nindhia, Tjokorda Gde Tirta; Lusiana,; Astika, I Made Jiwa; Kencanawati, C I P K

doi:10.4028/www.scientific.net/msf.988.80

Cited by 5 publications

(4 citation statements)

References 28 publications

(29 reference statements)

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“…In order to reduce the cost of producing activated carbon, the manufacturing process' efficiency must be improved by using less expensive raw materials and activating processes at lower temperatures. Biomass is a plentiful and reasonably priced source of raw materials [15], which includes bamboo [16,17], sawdust [18][19][20], agricultural waste [21], rice husk [22], and others. Coffee is one of the most prevalent biomasses and is the second largest commodity in world trade [23].…”

Section: Introductionmentioning

confidence: 99%

Development of mesoporous activated carbons derived from brewed coffee waste for CO2 adsorption

et al. 2023

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The primary cause of rising CO2 concentrations in the atmosphere is the use of fossil fuels in motor vehicles and factory activities in industry. CO2 levels in the atmosphere can be controlled and reduced by using low-carbon energy and capturing and storing CO2. One widely used way for CO2 capture and storage is adsorption method. This method necessitates the use of an adsorbent, one of which is activated carbon. In this study, brewed coffee waste was converted into activated carbons, characterized, and tested for carbon dioxide adsorption. Brewed coffee waste was dehydrated at 105 ºC for an hour before being carbonized at 550 °C and activated at 670, 700, and 730 °C, with a 200-ml/min nitrogen injection during activation. Activated carbons with activation temperatures of 670, 700, and 730 °C were denoted as AC-670, AC-700, and AC-730, respectively. A series of TGA, SEM, and adsorption isotherm tests were used to determine the proximate components, surface morphology, and surface structure of the activated carbons produced. To assess the adsorption capacities of activated carbon on CO2, the gravimetric CO2 adsorption isotherm method was used. According to the findings of the study, increasing activation temperatures cause variable properties in activated carbon. When using an activation temperature of 700 °C, the most appropriate properties of activated carbon can be obtained. It has 425.843 m2/g specific surface area, 0.345 cm3/g pore volume, 3.423 nm pore diameter, 235.628 cm3/g nitrogen adsorption capacity, and 4.183 mmol/g CO2 adsorption performance. This study provided a simple way converting brewed coffee waste into activated carbon with excellent performance for CO2 adsorption

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Section: Introductionmentioning

confidence: 99%

Development of mesoporous activated carbons derived from brewed coffee waste for CO2 adsorption

et al. 2023

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“…Except for wood, none of these raw materials are renewable or cheap. Various alternative raw materials, particularly those derived from biomass, have been investigated, including coconut shell [21,22], barley straw [1], sugarcane bagasse [23], bamboo [24][25][26], rice husk [27,28], coffee ground [29,30], palm empty fruit bunches [31], wild algae [32] and others.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Pelleted and Powdered Activated Carbons Derived from Used Brewed Coffee

Negara,

Widiyarta,

Gatot Karohika

et al. 2023

Trends Sci

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The experimental study is the best way to find out the characteristics of activated carbon (AC) due to its very difficult definition based on its structural formulation or chemical analysis as an effect of its high degree of imperfection in the crystal structure. This experimental study’s objectives are to investigate the characteristics and the adsorption capacities of activated carbon generated from used brewed coffee. The carbonization procedure took place at a temperature of 600 °C. After being made into pellets and powder, the charcoal was heated to 600 °C and activated with the help of 150 mL of nitrogen flowing per minute. Thermogravimetric analyzer (TGA), scanning electron microscopy (SEM), and the adsorption isotherm test were all utilized in the characterization process. The results showed that for pelleted activated carbon (AC-Plt) and powdered activated carbon (AC-Pw), respectively, both activated carbons had average pore diameters in the mesopore category of 4.39 and 4.93 nm. In comparison to AC-Pw, AC-Plt has a larger specific pore surface area (105.857 cm3/g) and pore volume (0.164 cm3/g). The adsorption capabilities of AC-Plt, which has a bimodal pore size distribution, are greater than those of AC-Pw for nitrogen, CO2, and methylene blue. In this investigation, it was discovered that pelleted activated carbon was more suited for the adsorption of nitrogen, CO2, and methylene blue. HIGHLIGHTS The used brewed coffee was successfully converted into powdered and pelleted activated carbons using nitrogen as an activator agent through physical activation The use of natural binder to produce pelleted activated carbon undergoes pyrolysis during the activation process, producing gas that acts as an activating agent (e.g., CO2) so that nitrogen and CO2 work simultaneously and more effectively to develop more activated carbon pore structures Pelleted activated carbon has a higher specific pore surface area of 105.857 cm3/g, pore volume of 0.164 cm3/g, and better adsorption capabilities for nitrogen (75.252 cm3/g), CO2 (1.554 mmol/g) and methylene blue (1.215 mg/g) adsorptions than powdered activated carbon GRAPHICAL ABSTRACT

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“…Many important products that are used in modern society are come from natural material. One may not realize that activated carbon that is very useful as for medicine, also use as adsorbent for various effort of purification is made from natural material [1][2][3][4][5][6][7][8][9][10][11]. Other natural product such as seaweed [12] are commonly use as medicine, coral reef [13][14][15] is used for fabrication of advance composite.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Vacuum Pressure during Autoclave Curing on Tensile Strength of Epoxy Composite Reinforced Natural Fiber of <i>Cordyline australis</i> with Sea Water Surface Treatment

Purwadnyana

Nindhia

Surata

et al. 2022

MSF

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In this work the composite made from epoxy resin as a matrix and natural fiber of Cordylineaustralis was used as reinforcement. The fiber was prepared from the process of water retting in fresh water for 1 weeks followed by drying. The final process was soaked in sea water to understand the effect of soaked in sea water to the adhesion of the fiber and matrix. The fiber was immersed in 5 hour and also 7 hours in sea water to be compared with the fiber that is was not immersed in sea water. The curing process also consist of 2 variation processes namely hand layup and vacuum pressure. The tensile test is conducted to investigate the final product of composite. It is found that the vacuum process resulting better tensile strength (34.610 MPa) in the sample of epoxy without fiber reinforcement (19.818 MPa for hand layup). In general for composite that are made with fiber without immersion in sea water, the tensile strength for the hand layup increase with addition of fiber fraction. In the other hand the tensile strength is decrease with addition of fiber fraction for vacuum process. For the fiber reinforcement, the hand layup resulting in better reinforcement comparing the vacuum process. .

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Development and Characterization of Activated Carbons Derived from Lignocellulosic Material

Cited by 5 publications

References 28 publications

Development of mesoporous activated carbons derived from brewed coffee waste for CO2 adsorption

Development of mesoporous activated carbons derived from brewed coffee waste for CO2 adsorption

Preparation and Characterization of Pelleted and Powdered Activated Carbons Derived from Used Brewed Coffee

The Effect of Vacuum Pressure during Autoclave Curing on Tensile Strength of Epoxy Composite Reinforced Natural Fiber of <i>Cordyline australis</i> with Sea Water Surface Treatment

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