Characterization of activated carbon synthesized at low temperature from cocoa shell (Theobroma cacao) for adsorbing amoxicillin
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| Format: | Artículo científico |
| Language: | en |
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Universidad del Valle
2017
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| _version_ | 1876472114368741376 |
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| author | Candelaria N. Tejada |
| author_facet | Candelaria N. Tejada |
| contents | Characterization of activated carbon synthesized at low temperature from cocoa shell (Theobroma cacao) for adsorbing amoxicillin Candelaria N. Tejada Diego Almanza Angel Villabona Fredy Colpas Clemente Granados Ingeniería bio char adsorption low temperature Activated carbon The aim of this research was synthesize and characterize activated carbon obtained at low temperature from cocoa peel (Theobroma cacao), modified with zinc chloride (ZnCl2) for its subsequent use in the removal of amoxicillin. The biomass was characterized by elemental analysis and the activated carbon was characterized by Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), and Surface Area Analysis (BET) in order to determine the chemical composition, morphological and structural characteristics. For the assays of amoxicillin molecular adsorption, was used an aqueous solution of contaminant at 20 ppm, with pH 6 and 9, to which was added 5 g of adsorbent material impregnated with ZnCl2 at 1:3 and 1:4 ratios. These carbons reached surface areas of 287.5 m2/g and 205.4 m2/g, respectively, with average pore sizes from 3 to 4 nm. The percentage of amoxicillin removal was influenced by the pH of the solution to be treated, reaching the highest percentages of adsorption when the pH was acid; removal values achieved for activated carbon 1:3 were 75.4 % and 67.2 %, while for the activated carbon 1:4 were 65.2 % and 56.7 % for solutions at pH 6 and 9, correspondingly. It concludes that the activated carbon obtained at low temperature has potential to remove amoxicillin in aqueous solution and becomes a good alternative due to the availability of the residue. 2017 artículo científico 0123-3033 https://www.redalyc.org/articulo.oa?id=291354828005 https://www.redalyc.org/journal/2913/291354828005/ https://www.redalyc.org/journal/2913/291354828005/html/ https://www.redalyc.org/journal/2913/291354828005/291354828005.epub https://www.redalyc.org/journal/2913/291354828005/movil 10.25100/iyc.v19i2.5292 en http://www.redalyc.org/revista.oa?id=2913 Ingeniería y Competitividad application/pdf Universidad del Valle Ingeniería y Competitividad (Colombia) Num.2 Vol.19 |
| format | Artículo científico |
| id | redalyc_291354828005 |
| institution | Redalyc |
| language | en |
| publishDate | 2017 |
| publisher | Universidad del Valle |
| spellingShingle | Characterization of activated carbon synthesized at low temperature from cocoa shell (Theobroma cacao) for adsorbing amoxicillin Candelaria N. Tejada Ingeniería bio char adsorption low temperature Activated carbon Characterization of activated carbon synthesized at low temperature from cocoa shell (Theobroma cacao) for adsorbing amoxicillin Candelaria N. Tejada Diego Almanza Angel Villabona Fredy Colpas Clemente Granados Ingeniería bio char adsorption low temperature Activated carbon The aim of this research was synthesize and characterize activated carbon obtained at low temperature from cocoa peel (Theobroma cacao), modified with zinc chloride (ZnCl2) for its subsequent use in the removal of amoxicillin. The biomass was characterized by elemental analysis and the activated carbon was characterized by Scanning Electron Microscopy (SEM), X-ray diffraction (XRD), and Surface Area Analysis (BET) in order to determine the chemical composition, morphological and structural characteristics. For the assays of amoxicillin molecular adsorption, was used an aqueous solution of contaminant at 20 ppm, with pH 6 and 9, to which was added 5 g of adsorbent material impregnated with ZnCl2 at 1:3 and 1:4 ratios. These carbons reached surface areas of 287.5 m2/g and 205.4 m2/g, respectively, with average pore sizes from 3 to 4 nm. The percentage of amoxicillin removal was influenced by the pH of the solution to be treated, reaching the highest percentages of adsorption when the pH was acid; removal values achieved for activated carbon 1:3 were 75.4 % and 67.2 %, while for the activated carbon 1:4 were 65.2 % and 56.7 % for solutions at pH 6 and 9, correspondingly. It concludes that the activated carbon obtained at low temperature has potential to remove amoxicillin in aqueous solution and becomes a good alternative due to the availability of the residue. 2017 artículo científico 0123-3033 https://www.redalyc.org/articulo.oa?id=291354828005 https://www.redalyc.org/journal/2913/291354828005/ https://www.redalyc.org/journal/2913/291354828005/html/ https://www.redalyc.org/journal/2913/291354828005/291354828005.epub https://www.redalyc.org/journal/2913/291354828005/movil 10.25100/iyc.v19i2.5292 en http://www.redalyc.org/revista.oa?id=2913 Ingeniería y Competitividad application/pdf Universidad del Valle Ingeniería y Competitividad (Colombia) Num.2 Vol.19 |
| title | Characterization of activated carbon synthesized at low temperature from cocoa shell (Theobroma cacao) for adsorbing amoxicillin |
| topic | Ingeniería bio char adsorption low temperature Activated carbon |
| url | https://www.redalyc.org/articulo.oa?id=291354828005 https://www.redalyc.org/journal/2913/291354828005/ https://www.redalyc.org/journal/2913/291354828005/html/ https://www.redalyc.org/journal/2913/291354828005/291354828005.epub https://www.redalyc.org/journal/2913/291354828005/movil |