Influence of the Hydrothermal Pre-treatments on the Adsorption Characteristics of Activated Carbons from Woods

Ishibashi, Noboru; Yamamoto, Kazuyoshi; Wakisaka, Hiroyuki; Kawahara, Yutaka

doi:10.1007/s10924-013-0623-x

Cited by 7 publications

(4 citation statements)

References 8 publications

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“…In contrast, partial liquefaction most likely occurred, leading to the destruction of the hollow fibrous structure of feathers and lowering the reaction surface necessary for the activation process. When we focus on the mean pore diameter determining the application field of AC, it is seen that the value of the F1Ph1-based AC is comparable to that of woody biomass-based AC [1,3], implying that F1Ph1-based AC can be used to eliminate pollutants from drinking water and wastewater.…”

Section: Production Of Ac From Phenolic Resin-modified Feathersmentioning

confidence: 99%

“…Hence, non-graphitizing carbons are highly attractive for AC production to ensure an effective reaction with activation gases, leading to porous structures with large adsorption capacity. AC materials with BET surface areas exceeding 1000 m 2 /g could be easily produced from woody biomass [1,3]. However, if the P1 of the starting material is too small, its liquefaction will occur before carbonization, and therefore the original structure, e.g., the cell structure of woody biomass or the hollow fibrous structure of feathers, will be destroyed.…”

Section: Production Of Ac From Phenolic Resin-modified Feathersmentioning

confidence: 99%

“…However, such carbon resources are not sustainable because of their limited reserves and the rising price of oil. Instead of fossil fuels, we have proposed alternative starting materials, such as coffee lees [1], triacetylcellulose waste [2], and oak woods [3], to produce AC. As for the cost of the resources, bottom ash [4] and waste rubber tires [5] are attractive, and adsorbents applicable to the wastewater treatments have been developed.…”

Section: Introductionmentioning

confidence: 99%

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Activated carbon production by co-carbonization of feathers using water-soluble phenolic resin under controlled graphitization

Kawahara

Ishibashi

Yamamoto

et al. 2015

Sustainable Materials and Technologies

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a b s t r a c tWe attempted to use feathers for the production of activated carbon (AC). A water-soluble resol-type phenolic resin was hybridized to prevent the liquefaction of the feathers and to control the graphitization degree of charcoal. The hybridization could effectively increase the yield of charcoal over 30% and maintained the graphitization degree at approximately 0.1, suitable for the production of AC. The Brunauer-Emmett-Teller (BET) surface area and the iodine-adsorption capacity of hybrid charcoal-based AC were 706 m 2 /g and 550 mg/g, respectively, which were 1.7-1.8 times greater than those of the feather-based AC at a similar activation level.

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Section: Production Of Ac From Phenolic Resin-modified Feathersmentioning

confidence: 99%

Section: Production Of Ac From Phenolic Resin-modified Feathersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Activated carbon production by co-carbonization of feathers using water-soluble phenolic resin under controlled graphitization

Kawahara

Ishibashi

Yamamoto

et al. 2015

Sustainable Materials and Technologies

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, such carbon resources are not sustainable because of their limited reserves and the rising price of oil. Instead of fossil fuels, several alternative starting materials have been proposed, such as coffee lees [1], triacetylcellulose waste [2], and oak woods [3], to produce AC.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Bamboo-Based Carbonaceous Adsorbents for the Removal of Musty/Earthy Off-Odors and Vocs

Kawahara¹

2016

Int J Water Wastewater Treat

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The investigations were made on the carbonization and the activation behaviors for bamboo, and the applicability of bamboo to the production of high functional activated carbons was discussed. Carbon dioxide was used as an activating agent. In the activation process, it was found that the potassium fractions mainly settled in the intercellular regions work as a catalyst and will accelerate the thermal decomposition of carbon. Therefore, when the activation reaction propagated into the intercellular regions, the activation reaction was suddenly accelerated; this makes the pore size distribution of obtained activated carbon featureless. In order to obtain the activated carbon with sharp pore size distribution suitable to remove musty and earthy off-odors from drinking water or harmful volatile organic compounds (VOCs) from ambient air, it is important to control the amount of potassium fractions in the charcoals.

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Activated Carbon for Cosmetics Applications

Budiman,

Amirta,

Yuliansyah

et al. 2024

Biomass-Based Cosmetics

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Influence of the Hydrothermal Pre-treatments on the Adsorption Characteristics of Activated Carbons from Woods

Cited by 7 publications

References 8 publications

Activated carbon production by co-carbonization of feathers using water-soluble phenolic resin under controlled graphitization

Activated carbon production by co-carbonization of feathers using water-soluble phenolic resin under controlled graphitization

Preparation of Bamboo-Based Carbonaceous Adsorbents for the Removal of Musty/Earthy Off-Odors and Vocs

Activated Carbon for Cosmetics Applications

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