scholarly journals Single adsorption of diclofenac and ronidazole from aqueous solution on commercial activated carbons: effect of chemical and textural properties

2022 ◽  
Author(s):  
Adriana I. Moral-Rodríguez ◽  
Roberto Leyva-Ramos ◽  
Esmeralda Mendoza-Mendoza ◽  
Paola E. Díaz-Flores ◽  
Damarys H. Carrales-Alvarado ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbons ◽  
Textural Properties

scholarly journals Adsorption of CCl4 from Aqueous Solution on Activated Carbons

2000 ◽  
Vol 18 (9) ◽  
pp. 823-837 ◽  
Author(s):  
Eugeniusz Milchert ◽  
Waldemar Goc ◽  
Robert Pelech
Keyword(s):  
Aqueous Solution ◽  
Activated Carbons

scholarly journals Removal of Ni (II) from Aqueous Solution by Adsorption onto Activated Carbon Prepared from Lapsi (Choerospondias axillaris) Seed Stone

2014 ◽  
Vol 9 (1) ◽  
pp. 166-174 ◽  
Author(s):  
Rajeshwar M. Shrestha ◽  
Margit Varga ◽  
Imre Varga ◽  
Amar P. Yadav ◽  
Bhadra P. Pokharel ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbon ◽  
Activated Carbons ◽  
Low Cost ◽  
Chemical Characterization ◽  
Maximum Adsorption Capacity ◽  
Adsorption Data ◽  
Optimum Ph ◽  
Nickel Adsorption

Activated carbons were prepared from Lapsi seed stone by the treatment with H2SO4 and HNO3 for the removal of Ni (II) ions from aqueous solution. Two activated carbon have been prepared from Lapsi seed stones by treating with conc.H2SO4 and a mixture of H2SO4 and HNO3 in the ratio of 1:1 by weight for removal of Ni(II) ions. Chemical characterization of the resultant activated carbons was studied by Fourier Transform Infrared Spectroscopy and Boehm titration which revealed the presence of oxygen containing surface functional groups like carboxyl, lactones and phenols in the carbons. The optimum pH for nickel adsorption is found to be 5. The adsorption data were better fitted with the Langmuir equations than Freundlich adsorption equation to describe the equilibrium isotherms. The maximum adsorption capacity of Ni (II) on the resultant activated carbons was 28.25.8 mg g-1 with H2SO4 and 69.49 mg g-1 with a mixture of H2SO4 and HNO3. The waste material used in the preparation of the activated carbons is inexpensive and readily available. Hence the carbons prepared from Lapsi seed stones can act as potential low cost adsorbents for the removal of Ni (II) from water. DOI: http://dx.doi.org/10.3126/jie.v9i1.10680Journal of the Institute of Engineering, Vol. 9, No. 1, pp. 166–174

Removal of reactive dye (BEZAKTIV Red S-MAX) from aqueous solution by adsorption onto activated carbons prepared from date palm rachis and jujube stones

2017 ◽  
Vol 243 ◽  
pp. 799-809 ◽  
Author(s):  
Mounir Daoud ◽  
Oumessaâd Benturki ◽  
Zoubida Kecira ◽  
Pierre Girods ◽  
André Donnot
Keyword(s):  
Aqueous Solution ◽  
Date Palm ◽  
Activated Carbons ◽  
Reactive Dye

Comparison of Coal Ash and Activated Carbon for Removal of Humic Acid from Aqueous Solution

2013 ◽  
Vol 864-867 ◽  
pp. 1509-1512
Author(s):  
Xue Mei Zhang ◽  
Yan Zhang ◽  
Di Fan
Keyword(s):  
Aqueous Solution ◽  
Humic Acid ◽  
Activated Carbons ◽  
Removal Rate ◽  
Coal Ash ◽  
Cost Effective ◽  
Solution Ph ◽  
Adsorption Behaviors ◽  
Calcium Loading ◽  
Working Solution

This paper presents the adsorption behaviors of humic acid (HA) on coal ashes and powdered activated carbons (PACs). A bituminous coal, with or without calcium-loading, was used as a feedstock for coal ash preparation. The working solution of HA with a concentration of 20 mg/L was used in all adsorption tests. The results showed that calcium-enriched coal ash (CECA) gave rise to the removal rate of HA as high as 84.05%, much higher than those of raw coal ash (RCA) and PACs. The impacts of solution pH and adsorbent dosage on HA adsorption capacity were also investigated. It was found that lower pH facilitated to the removal of HA from aqueous solution by means of CECA, and the optimal CECA dosage was about 1.0g/L at pH 7.00. The data obtained in this study suggested that calcium-enriched coal ash could be useful and cost-effective in the treatment of wastewaters containing HA-like organic macro-molecules.

scholarly journals Adsorption of lisinopril and chlorpheniramine from aqueous solution on dehydrated and activated carbons

2016 ◽  
Vol 19 ◽  
pp. 12-22 ◽  
Author(s):  
El-Said I. El-Shafey ◽  
Haider A. J. Al-Lawati ◽  
Wafa S. H. Al-Saidi
Keyword(s):  
Aqueous Solution ◽  
Activated Carbons

scholarly journals Biomass Valorization to Produce Porous Carbons: Applications in CO2 Capture and Biogas Upgrading to Biomethane—A Mini-Review

2021 ◽  
Vol 9 ◽  
Author(s):  
Maria Bernardo ◽  
Nuno Lapa ◽  
Isabel Fonseca ◽  
Isabel A. A. C. Esteves
Keyword(s):  
Circular Economy ◽  
Gas Adsorption ◽  
Activated Carbons ◽  
Textural Properties ◽  
Cost Effective ◽  
Attractive Alternative ◽  
Porous Carbons ◽  
Environmentally Sustainable ◽  
Gas Phases ◽  
Metal Organic

Porous carbon materials, derived from biomass wastes and/or as by-products, are considered versatile, economical and environmentally sustainable. Recently, their high adsorption capacity has led to an increased interest in several environmental applications related to separation/purification both in liquid- and gas-phases. Specifically, their use in carbon dioxide (CO2) capture/sequestration has been a hot topic in the framework of gas adsorption applications. Cost effective biomass porous carbons with enhanced textural properties and high CO2 uptakes present themselves as attractive alternative adsorbents with potential to be used in CO2 capture/separation, apart from zeolites, commercial activated carbons and metal-organic frameworks (MOFs). The renewable and sustainable character of the precursor of these bioadsorbents must be highlighted in the context of a circular-economy and emergent renewable energy market to reach the EU climate and energy goals. This mini-review summarizes the current understandings and discussions about the development of porous carbons derived from bio-wastes, focusing their application to capture CO2 and upgrade biogas to biomethane by adsorption-based processes. Biogas is composed by 55–65 v/v% of methane (CH4) mainly in 35–45 v/v% of CO2. The biogas upgraded to bio-CH4 (97%v/v) through an adsorption process yields after proper conditioning to high quality biomethane and replaces natural gas of fossil source. The circular-economy impact of bio-CH4 production is further enhanced by the use of biomass-derived porous carbons employed in the production process.

Sustainable development of tyre char-based activated carbons with different textural properties for value-added applications

2016 ◽  
Vol 170 ◽  
pp. 1-7 ◽  
Author(s):  
Pejman Hadi ◽  
Kit Ying Yeung ◽  
Jiaxin Guo ◽  
Huaimin Wang ◽  
Gordon McKay
Keyword(s):  
Sustainable Development ◽  
Activated Carbons ◽  
Value Added ◽  
Textural Properties

Preparation, characterization and application of microwave-assisted activated carbons from wood chips for removal of phenol from aqueous solution

2016 ◽  
Vol 223 ◽  
pp. 1067-1080 ◽  
Author(s):  
Pascal S. Thue ◽  
Matthew A. Adebayo ◽  
Eder C. Lima ◽  
Joseph M. Sieliechi ◽  
Fernando M. Machado ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Activated Carbons ◽  
Wood Chips ◽  
Microwave Assisted

Adsorption of Nicotine from Aqueous Solution by Activated Carbons Prepared from Chinese Fir Sawdust

2013 ◽  
Vol 29 (02) ◽  
pp. 377-384 ◽  
Author(s):  
YANG Ji-Liang ◽  
◽  
◽  
ZHOU Jian-Bin
Keyword(s):  
Aqueous Solution ◽  
Activated Carbons ◽  
Chinese Fir
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