scholarly journals Synthesis of porous carbon materials from water hyacinth via hydrothermal carbonization assisted chemical activation for carbon-based electrode applications

2020 ◽  
Author(s):  
Tanatorn Liamprawat ◽  
Panupong Verasarut ◽  
Napat Kaewtrakulchai ◽  
Gasidit Panomsuwan ◽  
Sutee Chutipaijit ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Water Hyacinth ◽  
Carbon Materials ◽  
Chemical Activation ◽  
Hydrothermal Carbonization ◽  
Porous Carbon Materials ◽  
Carbon Based

scholarly journals Highly porous carbon materials for adsorbent from water hyacinth via hydrothermal carbonization

2020 ◽  
Author(s):  
Sirayu Chanpee ◽  
Nattaya Suksai ◽  
Napat Kaewtrakulchai ◽  
Sutee Chutipaijit ◽  
Masayoshi Fuji ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Water Hyacinth ◽  
Carbon Materials ◽  
Hydrothermal Carbonization ◽  
Porous Carbon Materials ◽  
Highly Porous

scholarly journals Porous Carbon Materials Obtained by the Hydrothermal Carbonization of Orange Juice

Nanomaterials ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 655 ◽  
Author(s):  
Francesco Veltri ◽  
Francesca Alessandro ◽  
Andrea Scarcello ◽  
Amerigo Beneduci ◽  
Melvin Arias Polanco ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Photoelectron Spectroscopy ◽  
Orange Juice ◽  
Carbon Materials ◽  
Sorption Isotherms ◽  
Hydrothermal Carbonization ◽  
Carbon Quantum Dots ◽  
Energy Storage Devices ◽  
X Ray ◽  
Porous Carbon Materials

Porous carbon materials are currently subjected to strong research efforts mainly due to their excellent performances in energy storage devices. A sustainable process to obtain them is hydrothermal carbonization (HTC), in which the decomposition of biomass precursors generates solid products called hydrochars, together with liquid and gaseous products. Hydrochars have a high C content and are rich with oxygen-containing functional groups, which is important for subsequent activation. Orange pomace and orange peels are considered wastes and then have been investigated as possible feedstocks for hydrochars production. On the contrary, orange juice was treated by HTC only to obtain carbon quantum dots. In the present study, pure orange juice was hydrothermally carbonized and the resulting hydrochar was filtered and washed, and graphitized/activated by KOH in nitrogen atmosphere at 800 °C. The resulting material was studied by transmission and scanning electron microscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, X-ray diffraction, and nitrogen sorption isotherms. We found porous microspheres with some degree of graphitization and high nitrogen content, a specific surface of 1725 m2/g, and a pore size distribution that make them good candidates for supercapacitor electrodes.

scholarly journals A hierarchical porous P-doped carbon electrode through hydrothermal carbonization of pomelo valves for high-performance supercapacitors

2020 ◽  
Vol 2 (8) ◽  
pp. 3284-3291
Author(s):  
Jing Huang ◽  
Jie Chen ◽  
Zhenyao Yin ◽  
Jinggao Wu
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Hydrothermal Carbonization ◽  
Carbon Electrode ◽  
Porous Carbon Materials ◽  
Hierarchical Porous

Porous carbon materials are synthesized from pomelo valves by the hydrothermal activation of H3PO4 followed by simple carbonization.

scholarly journals Porous carbon materials for microwave absorption

2020 ◽  
Vol 1 (8) ◽  
pp. 2631-2645 ◽  
Author(s):  
Jin-Bo Cheng ◽  
Hai-Gang Shi ◽  
Min Cao ◽  
Ting Wang ◽  
Hai-Bo Zhao ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
Porous Carbon ◽  
Recent Progress ◽  
Carbon Materials ◽  
Structure Characterization ◽  
Microstructure Design ◽  
Porous Carbon Materials ◽  
Properties Of Materials ◽  
Carbon Based

We summarize the recent progress in porous carbon-based MA materials encompassing composition and microstructure design. Representative fabrication methods, structure characterization, and properties of materials are highlighted in detail.

scholarly journals Porous carbon materials produced by the chemical activation of birch wood

2016 ◽  
Vol 50 (1) ◽  
pp. 23-30 ◽  
Author(s):  
B. N. Kuznetsov ◽  
N. V. Chesnokov ◽  
S. I. Tsyganova ◽  
N. M. Mikova ◽  
I. P. Ivanov ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Carbon Materials ◽  
Chemical Activation ◽  
Birch Wood ◽  
Porous Carbon Materials

scholarly journals Porous Carrageenan-Derived Carbons for Efficient Ciprofloxacin Removal from Water

Nanomaterials ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1004 ◽  
Author(s):  
João Nogueira ◽  
Maria António ◽  
Sergey Mikhalev ◽  
Sara Fateixa ◽  
Tito Trindade ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Activated Carbons ◽  
Chemical Activation ◽  
High Specific Surface Area ◽  
High Porosity ◽  
Porous Carbon Materials

Porous carbon materials derived from biopolymers are attractive sorbents for the removal of emerging pollutants from water, due to their high specific surface area, high porosity, tunable surface chemistry, and reasonable cost. However, carrageenan biopolymers were scarcely investigated as a carbon source to prepare porous carbon materials. Herein, hydrochars (HCs) and porous activated carbons (ACs) derived from natural occurring polysaccharides with variable sulfate content (κ-, ι- and λ-carrageenan) were prepared and investigated in the uptake of ciprofloxacin, which is an antibiotic detected in water sources and that poses serious hazards to public health. The materials were prepared using hydrothermal carbonization and subsequent chemical activation with KOH to increase the available surface area. The activated carbons were markedly microporous, presenting high specific surface area, up to 2800 m2/g. Activated carbons derived from κ- and λ-carrageenan showed high adsorption capacity (422 and 459 mg/g, respectively) for ciprofloxacin and fast adsorption kinetics, reaching the sorption equilibrium in approximately 5 min. These features place the ACs investigated here among the best systems reported in the literature for the removal of ciprofloxacin from water.

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