Activated carbon from sugar cane bagasse by carbonization in the presence of inorganic acids

1994 ◽  
Vol 61 (1) ◽  
pp. 87-92 ◽  
Author(s):  
Badie S. Girgis ◽  
Laila B. Khalil ◽  
Tarek A. M. Tawfik
2017 ◽  
Vol 07 (04) ◽  
pp. 259-269 ◽  
Author(s):  
Katsuya Konno ◽  
Yusuke Oike ◽  
Yasutaka Ohba ◽  
Osamu Sasaki ◽  
Yasuyuki Takiguchi ◽  
...  

2012 ◽  
Vol 96 ◽  
pp. 24-32 ◽  
Author(s):  
Marion Carrier ◽  
Ailsa G. Hardie ◽  
Ümit Uras ◽  
Johann Görgens ◽  
Johannes (Hansie) Knoetze

2019 ◽  
Vol 285 ◽  
pp. 9-19 ◽  
Author(s):  
Ahmed O. Abo El Naga ◽  
Mohamed El Saied ◽  
Seham A. Shaban ◽  
Fathy Y. El Kady

Molecules ◽  
2019 ◽  
Vol 24 (24) ◽  
pp. 4534 ◽  
Author(s):  
Yixin Cai ◽  
Liming Liu ◽  
Huafeng Tian ◽  
Zhennai Yang ◽  
Xiaogang Luo

Adsorption and desorption behaviors of tetracycline hydrochloride by activated carbon-based adsorbents derived from sugar cane bagasse modified with ZnCl2 were investigated. The activated carbon was tested by SEM, EDX, BET, XRD, FTIR, and XPS. This activated carbon exhibited a high BET surface area of 831 m2 g−1 with the average pore diameter and pore volume reaching 2.52 nm and 0.45 m3 g−1, respectively. The batch experimental results can be described by Freundlich equation, pseudo-second-order kinetics, and the intraparticle diffusion model, while the maximum adsorption capacity reached 239.6 mg g−1 under 318 K. The effects of flow rate, bed height, initial concentration, and temperature were studied in fixed bed adsorption experiments, and adsorption data were fitted with six dynamic adsorption models. The results of characterizations and the batch experiments were analyzed to study the adsorption and desorption mechanisms. Tetracycline hydrochloride and activated carbon were bonded together by π–π interactions and cation–π bonds. Ethanol was used as an eluent which bonded with 10 hydrogen bond acceptors on tetracycline hydrochloride to form a complex by hydrogen bonding to achieve recycling.


2021 ◽  
Vol 11 (5) ◽  
pp. 2133
Author(s):  
Laura Landa-Ruiz ◽  
Miguel Angel Baltazar-Zamora ◽  
Juan Bosch ◽  
Jacob Ress ◽  
Griselda Santiago-Hurtado ◽  
...  

This research evaluates the behavior corrosion of galvanized steel (GS) and AISI 1018 carbon steel (CS) embedded in conventional concrete (CC) made with 100% CPC 30R and two binary sustainable concretes (BSC1 and BSC2) made with sugar cane bagasse ash (SCBA) and silica fume (SF), respectively, after 300 days of exposure to 3.5 wt.% MgSO4 solution as aggressive medium. Electrochemical techniques were applied to monitor corrosion potential (Ecorr) according to ASTM C-876-15 and linear polarization resistance (LPR) according to ASTM G59 for determining corrosion current density (icorr). Ecorr and icorr results indicate after more than 300 days of exposure to the sulfate environment (3.5 wt.% MgSO4 solution), that the CS specimens embedded in BSC1 and BSC2 presented greater protection against corrosion in 3.5 wt.% MgSO4 than the specimens embedded in CC. It was also shown that this protection against sulfates is significantly increased when using GS reinforcements. The results indicate a higher resistance to corrosion by exposure to 3.5 wt.% magnesium sulfate two times greater for BSC1 and BSC2 specimens reinforced with GS than the specimens embedding CS. In summary, the combination of binary sustainable concrete with galvanized steel improves durability and lifetime in service, in addition to reducing the environmental impact of the civil engineering structures.


2005 ◽  
Vol 36 (1) ◽  
pp. 31-39 ◽  
Author(s):  
Daniel Pasquini ◽  
Maria Teresa Borges Pimenta ◽  
Luiz Henrique Ferreira ◽  
Antonio Aprigio da Silva Curvelo

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