Preparation of N, P self-doped activated carbon hollow fibers derived from liquefied wood

Activated carbon fiber was prepared from liquefied wood by chemical activation with ZnCl2 (Z-LWACF) at different impregnation ratios, with a particular focus on its adsorption property, kinetic and isotherm. The characterization and properties of Z-LWACFs were investigated by nitrogen adsorption/desorption, X-ray photoelectron spectroscopy (XPS), methylene blue (MB) and iodine adsorption. Two activation process methods were employed to prepare Z-LWACF and contrasted with others fibers. The results showed that the Z-LWACF obtained by one-step ZnCl2 activation present higher yields and specific surface area than others fibers. Besides, the change of MB adsorption value at different impregnation ratios was consistent with pore structure distribution above 1.5 nm pore size, indicating that larger micropores (1.5 to 2 nm) and mesopores played a major role in the MB adsorption by Z-LWACF. The kinetics of MB adsorption process was found to follow the pseudo-second-order kinetic model and the adsorption rate was controlled by chemisorption. It was also found that MB adsroption by Z-LWACF belonged to monolayer adsorption and Z-LWACF was easy to adsorb MB.

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Activated carbon fiber from liquefied wood and polyvinyl butyral as an additive for production of flexible all-carbon yarn supercapacitors

Holzforschung ◽

10.1515/hf-2017-0143 ◽

2018 ◽

Vol 72 (5) ◽

pp. 367-374 ◽

Cited By ~ 1

Author(s):

Yuxiang Huang ◽

Wenji Yu ◽

Guangjie Zhao

Keyword(s):

Activated Carbon ◽

Surface Area ◽

Carbon Fibers ◽

High Surface ◽

High Surface Area ◽

Polyvinyl Butyral ◽

Activated Carbon Fiber ◽

Bet Surface Area ◽

Liquefied Wood ◽

New Material

AbstractA novel way to prepare mesoporous activated carbon fibers (ACFs-P) has been developed, while the ACFs-P with high surface area were obtained from liquefied wood by combining polyvinyl butyral (PVB) blending and steam activation. The porosity properties of the new material was investigated by N2adsorption and the Brunauer–Emmett–Teller (BET) surface area was found to be 2710 m2g−1and a pore volume of 1.540 cm3g−1, of which 58.2% was mesoporous with diameters between 3 and 6 nm. ACFs-P had a higher methylene blue (MB) adsorption capacity (962 mg/g) than the PVB-added carbon fibers (CFs-P) and ACFs-P without PVB (ACFs-C). Flexible all-carbon yarn supercapacitors can be produced from ACFs-P as powder or fiber. The fiber approach led to yarn supercapacitors with a less favorable electrochemical performance than the powder based production owing to the poor strength of the fibers. A 10 cm long yarn supercapacitor from the powdered ACFs exhibited a high specific length capacitance of 43 mF cm−1at 2 mV s−1. Yarn supercapacitors showed an excellent mechanical flexibility and its capacitor properties were not diminished after bending or crumpling.

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Influence of activation time on the microstructure and antibacterial activity of Nanosilver-containing activated carbon fibers prepared from liquefied wood

Fibers and Polymers ◽

10.1007/s12221-015-0522-y ◽

2015 ◽

Vol 16 (3) ◽

pp. 522-528 ◽

Cited By ~ 3

Author(s):

Wenjing Liu ◽

Qiuhui Zhang ◽

Guangjie Zhao

Keyword(s):

Antibacterial Activity ◽

Activated Carbon ◽

Carbon Fibers ◽

Activated Carbon Fibers ◽

Activation Time ◽

Liquefied Wood

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Preparation of liquefied wood-based activated carbon fibers by different activation methods for methylene blue adsorption

RSC Advances ◽

10.1039/c5ra11945f ◽

2015 ◽

Vol 5 (86) ◽

pp. 70287-70296 ◽

Cited By ~ 14

Author(s):

Yuxiang Huang ◽

Erni Ma ◽

Guangjie Zhao

Keyword(s):

Methylene Blue ◽

Activated Carbon ◽

Carbon Fibers ◽

Activated Carbon Fibers ◽

Methylene Blue Adsorption ◽

Liquefied Wood

In order to study the adsorption for methylene blue (MB), five types of activated carbon fibers (ACFs) were prepared from liquefied wood by different activation methods.

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Adsorption characteristics of activated carbon hollow fibers

Chemical Industry and Chemical Engineering Quarterly ◽

10.2298/ciceq0901029k ◽

2009 ◽

Vol 15 (1) ◽

pp. 29-31 ◽

Cited By ~ 2

Author(s):

Branka Kaludjerovic ◽

Ljiljana Kljajevic ◽

Danijela Sekulic ◽

Jelena Stasic ◽

Zarko Bogdanov

Keyword(s):

Activated Carbon ◽

Active Carbon ◽

Carbon Material ◽

Sodium Phosphate ◽

Chemical Activation ◽

Adsorption Properties ◽

Hollow Fibers ◽

Regenerated Cellulose ◽

Activation Process ◽

Sodium Phosphate Dibasic

Carbon hollow fibers were prepared with regenerated cellulose or polysulfone hollow fibers by chemical activation using sodium phosphate dibasic followed by the carbonization process. The activation process increases the adsorption properties of fibers which is more prominent for active carbone fibers obtained from the cellulose precursor. Chemical activation with sodium phosphate dibasic produces an active carbon material with both mesopores and micropores.

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