scholarly journals Lignocellulosic biomass-derived, graphene sheet-like porous activated carbon for electrochemical supercapacitor and catechin sensing

RSC Advances ◽  
2017 ◽  
Vol 7 (72) ◽  
pp. 45668-45675 ◽  
Author(s):  
Vediyappan Veeramani ◽  
Mani Sivakumar ◽  
Shen-Ming Chen ◽  
Rajesh Madhu ◽  
Hatem R. Alamri ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Specific Surface ◽  
Surface Area ◽  
Lignocellulosic Biomass ◽  
Graphene Sheet ◽  
Chemical Activation ◽  
High Specific Surface Area ◽  
Electrochemical Supercapacitor ◽  
Bougainvillea Spectabilis ◽  
Porous Activated Carbon

We synthesize graphene sheet-like porous activated carbon (GPAC) with a high specific surface area by using Bougainvillea spectabilis as a precursor with the assistance of a facile and reliable chemical activation method.

Production and characterization of lignocellulosic biomass-derived activated carbon

2010 ◽  
Vol 62 (11) ◽  
pp. 2637-2646 ◽  
Author(s):  
A. B. Namazi ◽  
C. Q. Jia ◽  
D. G. Allen
Keyword(s):  
Activated Carbon ◽  
Specific Surface ◽  
Surface Area ◽  
Lignocellulosic Biomass ◽  
Specific Surface Area ◽  
Chemical Activation ◽  
Pulp Mill ◽  
Activation Process ◽  
Activation Temperature ◽  
Biomass Ratio

The goal of this work is to establish the technical feasibility of producing activated carbon from pulp mill sludges. KOH chemical activation of four lignocellulosic biomass materials, two sludges from pulp mills, one sludge for a linerboard mill, and cow manure, were investigated experimentally, with a focus on the effects of KOH/biomass ratio (1/1, 1.5/1 and 2/1), activation temperature (400–600°C) and activation time (1 to 2 h) on the development of porosity. The activation products were characterized for their physical and chemical properties using a surface area analyzer, scanning electron microscopy and Fourier transform infrared spectroscopy. Experiments were carried out to establish the effectiveness of the lignocellulosic biomass-derived activated carbon in removing methylene blue (MB), a surrogate of large organic molecules. The results show that the activated carbon are highly porous with specific surface area greater than 500 m2/g. The yield of activated carbon was greater than the percent of fixed carbon in the dry sludge, suggesting that the activation process was able to capture a substantial amount of carbon from the organic matter in the sludge. While 400°C was too low, 600°C was high enough to sustain a substantial rate of activation for linerboard sludge. The KOH/biomass ratio, activation temperature and time all play important roles in pore development and yield control, allowing optimization of the activation process. MB adsorption followed a Langmuir isotherm for all four activated carbon, although the adsorption capacity of NK-primary sludge-derived activated carbon was considerably lower than the rest, consistent with its lower specific surface area.

scholarly journals Preparation of Activated Carbon with High Specific Surface Area from Beer Lees by Chemical Activation with KOH.

2000 ◽  
Vol 26 (2) ◽  
pp. 293-297 ◽  
Author(s):  
JUN'ICHI HAYASHI ◽  
AYAKO KUBO ◽  
AKIRA FURUKAWA ◽  
KATSUHIKO MUROYAMA
Keyword(s):  
Activated Carbon ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Chemical Activation ◽  
High Specific Surface Area

scholarly journals Production of Activated Carbon with High Specific Surface Area from Bean-curd Refuse by Chemical Activation

TANSO ◽  
1996 ◽  
Vol 1996 (172) ◽  
pp. 95-99 ◽  
Author(s):  
Katsuhiko Muroyama ◽  
Jun'ichi Hayashi ◽  
Atsushi Sato ◽  
Susumu Takemoto
Keyword(s):  
Activated Carbon ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Chemical Activation ◽  
High Specific Surface Area

Production of activated carbon with high specific surface area from bean-curd refuse by chemical activation

Carbon ◽  
1996 ◽  
Vol 34 (9) ◽  
pp. 1164
Author(s):  
Katsuhiko Muroyama ◽  
Jun'ichi Hayashi ◽  
Atsushi Sato ◽  
Susumu Takemoto
Keyword(s):  
Activated Carbon ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Chemical Activation ◽  
High Specific Surface Area

Analysis of the Factors Affecting the Instrumentation of the Technological Process of the Activated Carbon Material Production

2022 ◽  
pp. 20-30
Author(s):  
A.A. Popova ◽  
I.N. Shubin
Keyword(s):  
Activated Carbon ◽  
Specific Surface ◽  
Carbon Material ◽  
Mutual Influence ◽  
Chemical Activation ◽  
High Specific Surface Area ◽  
Laboratory Research ◽  
High Porosity ◽  
Gas Purification ◽  
Factors Affecting

The article discusses significance of the development of activated carbon materials with a high specific surface area and high porosity. The features of the course of chemical activation and the factors influencing the characteristics of the obtained material have been established. The main stages of the activation of the carbon material, including the preliminary raw carbon material carbonization, its alkaline activation, and the post-processing of the created material, have been determined. The mutual influence of temperature and flow rate of an inert gas on the characteristics of a carbon material obtained with a BET specific surface in the range of 2550–2700 m2/g is experimentally investigated. The analysis of the obtained results has been carried out. Recommendations are given for reducing ambiguity and uncertainty during the transition from laboratory research to pilot production. The resulting activated carbon material can be used as a sorbent in gas purification systems, gas accumulators and for solving various environmental problems.

Fabrication of hydrophobic regenerated activated carbon with high specific surface area

2021 ◽  
Author(s):  
Wenli Li ◽  
Qiongyuan Zhang ◽  
Jie Zhang ◽  
Yuhua Zheng ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Specific Surface Area

Preparation of high specific surface area and high adsorptive activated carbon by KOH activation

2019 ◽  
Vol 199 (1) ◽  
pp. 22-29 ◽  
Author(s):  
Wang-Quan Zhang ◽  
Xin Sui ◽  
Bing Yu ◽  
You-Qing Shen ◽  
Hai-Lin Cong
Keyword(s):  
Activated Carbon ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
High Specific Surface Area ◽  
Koh Activation

Frontiers of carbon materials as capacitive deionization electrodes

2020 ◽  
Vol 49 (16) ◽  
pp. 5006-5014 ◽  
Author(s):  
Yuanyuan Li ◽  
Nan Chen ◽  
Zengling Li ◽  
Huibo Shao ◽  
Liangti Qu
Keyword(s):  
Carbon Nanotubes ◽  
Activated Carbon ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Carbon Materials ◽  
High Specific Surface Area ◽  
Carbon Aerogels ◽  
Capacitive Deionization

Carbon materials are widely used as capacitive deionization (CDI) electrodes due to their high specific surface area (SSA), superior conductivity, and better stability, including activated carbon, carbon aerogels, carbon nanotubes and graphene.

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