Synthesis of activated carbon from salacca peel with hydrothermal carbonization for supercapacitor application

2020 ◽  
Author(s):  
Ashianti Stenny Winata ◽  
Hary Devianto ◽  
Ratna Frida Susanti
Keyword(s):  
Activated Carbon ◽  
Hydrothermal Carbonization ◽  
Supercapacitor Application

Temperature Dependent On Activated Carbon For Their Biological Activity And Photocatalytical Degradation of Methylene Blue: A Novel Approach To Green Synthesis

2021 ◽  
Author(s):  
Amalanathan.M ◽  
Aravind.M ◽  
Sony Michael Mary.M ◽  
Razan A. Alshgari ◽  
Asma A. Alothman ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Antibacterial Activity ◽  
Activated Carbon ◽  
Hydrothermal Carbonization ◽  
Microbial Pathogens ◽  
X Ray Diffraction ◽  
E Coli ◽  
Novel Approach ◽  
Transmission Electron ◽  
Ft Ir

Abstract In this work, jasmine flower derived activated carbon were successfully synthesized by hydrothermal carbonization process at the different annealing temperature. The Crystallinity, phase, structural, morphological and optical properties of activated carbon were investigated using X-ray diffraction (XRD), Fourier Transform Infrared spectroscopy (FT-IR), Scanning electron microscopy (SEM), Transmission electron microscope (TEM), and UV-visible spectroscopy analysis. The graphitic phase of carbon was obtained from the XRD pattern. Surface morphology reveals irregular-shaped nanoparticles. The photodegradation of methylene blue (MB) was carried out under the visible light irradiation technique to study its photocatalytic activity. The activated carbon obtained at 400oC, 500oC and 600oC shows a photocatalytic degradation efficiency of 86%, 90%, and 94%, respectively. Antibacterial activity of activated carbon was examined against S. Aureus (MTCC-737) and E-Coli (MTCC- 443) microbial pathogens, and their potent antibacterial activity was examined from the zone of inhibition layer.

scholarly journals Conversion of automotive paint sludge to activated carbon via microwave pyrolysis technique for supercapacitor application

2020 ◽  
Vol 3 (1) ◽  
pp. 35
Author(s):  
Siti Shawalliah Idris ◽  
Muhammad Nasrul Bojy ◽  
Zakiuddin Januri
Keyword(s):  
Activated Carbon ◽  
Surface Area ◽  
Power Supply ◽  
Pore Volume ◽  
Potassium Hydroxide ◽  
Microwave Pyrolysis ◽  
Supercapacitor Application ◽  
Paint Sludge ◽  
The Impact ◽  
Radiation Time

Conversion of waste to wealth has been one of the ways to reduce the volume of industrial waste to disposal site, hence reducing the impact to the environment. In this work, paint sludge from an automotive industry (APS) was converted into activated carbon through chemical activation (potassium hydroxide (KOH)) using microwave pyrolysis technique. The effect of power and radiation time on the produced activated carbon were investigated and characterised (carbon content, surface area, and pore volume) to identify the possibility of application as a supercapacitor. Potassium hydroxide activation of the APS char via microwave pyrolysis has shown that power level and radiation time has influenced the yield of the APS activated carbon. A longer radiation time and higher power supply has produced activated carbon having higher carbon contents, lower impurities, higher surface area and higher pore volume. Thus, the APS activated carbon obtained via microwave pyrolysis at power supply 1000 W and 45 minutes radiation time had produced the highest surface area and total pore volume of 434.3 m2/g and 0.2901 cm3/g, respectively. However, the produced activated carbon is not suitable for the supercapacitor application as the minimum surface area requirement must be more than 1000 m2/g. The pore size of the activated APS char produced in this study was in the range of mesopores size which was also considered very poor for supercapacitor application. The outcome of this research has shown that the produced activated carbon could otherwise be used for other application than a supercapacitor.

An Environmentally Friendly Technology for Biomass Production Hydorchar from Renewable Resources

2013 ◽  
Vol 726-731 ◽  
pp. 634-637 ◽  
Author(s):  
Yan Qiu Lei ◽  
Hai Quan Su
Keyword(s):  
Activated Carbon ◽  
Reaction Time ◽  
Adsorption Capacity ◽  
Functional Groups ◽  
Biomass Production ◽  
Renewable Resources ◽  
Environmentally Friendly ◽  
Hydrothermal Carbonization ◽  
Removal Rates

A green and sustainable route for preparation of hydrochars from cornstalk by hydrothermal carbonization (200°C) was described. The morphology of the hydrochars changed with reaction time increased, the surface of the materials contained a large number of functional groups, showed higher adsorption capacity for Cr (VI) than activated carbon and the removal rates of Cr (VI) were 67% and 29% respectively (pH=1, 20°C).

Porous activated carbon monolith with nanosheet/nanofiber structure derived from the green stem of cassava for supercapacitor application

2020 ◽  
Vol 44 (13) ◽  
pp. 10192-10205
Author(s):  
Erman Taer ◽  
Novi Yanti ◽  
Widya Sinta Mustika ◽  
Apriwandi Apriwandi ◽  
Rika Taslim ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Supercapacitor Application ◽  
Carbon Monolith ◽  
Activated Carbon Monolith ◽  
Porous Activated Carbon ◽  
Green Stem

scholarly journals Activated Carbon from Winemaking Waste: Thermoeconomic Analysis for Large-Scale Production

Energies ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 6462
Author(s):  
Isaac Lorero ◽  
Arturo J. Vizcaíno ◽  
Francisco J. Alguacil ◽  
Félix A. López
Keyword(s):  
Activated Carbon ◽  
Heat Exchangers ◽  
Large Scale ◽  
Activated Carbons ◽  
Hydrothermal Carbonization ◽  
Thermodynamic Efficiency ◽  
Physical Activation ◽  
Scale Production ◽  
Production Scale ◽  
Costs Analysis

An activated carbon manufacturing process from winemaking waste is analyzed. In that way, vine shoots conversion is studied as a basis for plant designing, and mass and energy balances of hydrothermal carbonization and physical activation are fulfilled. To develop an energy-integrated plant, a network of heat exchangers is allocated to recover heat waste, and a cogeneration cycle is designed to provide electricity and remaining heat process demands. Furthermore, thermoeconomic analysis is applied to determine the thermodynamic efficiency and the economic viability of the plant. Energy balance indicates that heat exchangers energy integration covers 48.9% of the overall demands by crossing hot and cold streams and recovering heat from residual flue gas. On the other hand, the exergy costs analysis identifies combustion of pruning wood as the main source of exergy destruction, confirming the suitability of the integration to improve the thermodynamic performance. Attending to economic costs analysis, production scale and vineyard pruning wood price are identified as a critical parameter on process profitability. With a scale of 2.5 ton/h of pruning wood carbonization, a break-event point to compete with activated carbons from biomass origin is reached. Nevertheless, cost of pruning wood is identified as another important economic parameter, pointing out the suitability of wet methods such as hydrothermal carbonization (HTC) to treat them as received form the harvest and to contribute to cutting down its prices.

Catalytic activation and application of micro-spherical carbon derived from hydrothermal carbonization of lignocellulosic biomass: statistical analysis using Box–Behnken design

RSC Advances ◽  
2016 ◽  
Vol 6 (104) ◽  
pp. 102680-102694 ◽  
Author(s):  
Z. Z. Chowdhury ◽  
S. B. Abd Hamid ◽  
Md. M. Rahman ◽  
R. F. Rafique
Keyword(s):  
Activated Carbon ◽  
Statistical Analysis ◽  
Potassium Hydroxide ◽  
Chemical Activation ◽  
Hydrothermal Carbonization ◽  
Corchorus Olitorius ◽  
Box Behnken Design ◽  
Catalytic Activation ◽  
Spherical Carbon ◽  
Physico Chemical

Activated carbon was produced by physico-chemical activation of hydrothermally carbonized dried stem derived from Corchorus olitorius, commonly known as Jute (JS), using potassium hydroxide (KOH) as an activation agent.

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