Electrochemical and structural characteristics of activated carbon-based electrodes modified via phosphoric acid

Activated carbon was prepared from molasses, which are natural precursors of vegetable origin resulting from the sugar industry. A simple elaboration process, based on chemical activation with phosphoric acid, was proposed. The final product, prepared by activation of molasses/phosphoric acid mixture in air at 500°C, presented high surface area (more than 1400 m2/g) and important maximum adsorption capacity for methylene blue (625 mg/g) and iodine (1660 mg/g). The activated carbon (MP2(500)) showed a good potential for the adsorption of Cr(VI), Cu(II) and Pb(II) from aqueous solutions. The affinity for the three ions was observed in the following order Cu2+ Cr6+ Pb2+. The process is governed by monolayer adsorption following the Langmuir model, with a correlation coefficient close to unity.

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Structural changes and electrochemical properties of lacquer wood activated carbon prepared by phosphoric acid-chemical activation for supercapacitor applications

Renewable Energy ◽

10.1016/j.renene.2021.05.113 ◽

2021 ◽

Author(s):

Sheng-Chun Hu ◽

Jie Cheng ◽

Wu-Ping Wang ◽

Guo-Tao Sun ◽

Li-Le Hu ◽

...

Keyword(s):

Activated Carbon ◽

Phosphoric Acid ◽

Electrochemical Properties ◽

Structural Changes ◽

Chemical Activation ◽

Supercapacitor Applications

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Preparation and Characterization of Activated Carbon Fibers from Jute Fibers by Phosphoric Acid Activation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.184-185.1110 ◽

2012 ◽

Vol 184-185 ◽

pp. 1110-1113 ◽

Cited By ~ 1

Author(s):

Li Fen He ◽

Qi Xia Liu ◽

Tao Ji ◽

Qiang Gao

Keyword(s):

Activated Carbon ◽

Carbon Fiber ◽

Phosphoric Acid ◽

Carbon Fibers ◽

Activated Carbon Fibers ◽

Optimum Conditions ◽

Activation Time ◽

Activation Temperature ◽

Jute Fibers ◽

Activating Agent

Various jute-based activated carbon fibers were prepared by using jute fibers as raw materials and phosphoric acid as activating agent. The effects of three main factors such as concentration of activating agent, activation temperature and activation time on the yield and adsorptive properties of active carbon fibers were investigated via orthogonal experiments. The surface physical morphology of jute-based activated carbon fiber was also observed by using Scanning Electron Microscope. Results showed that the optimum conditions were phosphoric acid concentration of 4 mol/L, activation temperature of 600 °C and activation time of 1h. The yield, iodine number and amount of methylene blue adsorption of the active carbon fiber prepared under optimum conditions were 37.99 %, 1208.87 mg/g and 374.65 mg/g, respectively.

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A method for the preparation of activated carbon based carbon/carbonaceous composites with controllable surface functionality

Journal of Porous Materials ◽

10.1007/s10934-010-9436-7 ◽

2010 ◽

Vol 18 (6) ◽

pp. 743-750 ◽

Cited By ~ 2

Author(s):

Baohua Zhang ◽

Jiawen Ren ◽

Xin Gu ◽

Xiaohui Liu ◽

Changlin Li ◽

...

Keyword(s):

Activated Carbon ◽

Surface Functionality ◽

Carbon Based

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Dihydroxybenzene isomers electrochemical sensor based on activated carbon sensitive material activated by mechanochemistry and low-dosage phosphoric acid

Analytical Methods ◽

10.1039/d1ay01768c ◽

2021 ◽

Author(s):

Xuan Yang ◽

Chenlu He ◽

Yu Lin ◽

Yijuan Qiu ◽

Pengfei Li ◽

...

Keyword(s):

Activated Carbon ◽

Phosphoric Acid ◽

Electrochemical Sensor ◽

Sensitive Material ◽

Dihydroxybenzene Isomers ◽

Low Dosage

Dihydroxybenzene isomers electrochemical sensor based on bamboo activated carbon (MCPBAC) sensitive material activated by mechanochemistry and low-dosage phosphoric acid was fabricated in this work. The sensor modified by MCPBAC with...

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