Characterization of Colombian Clay and Its Potential Use as Adsorbent
This paper presents a mineralogical and physicochemical characterization of a Colombian clay found in an area with the greatest exploitation potential of smectites and possible use as an adsorbent for the removal of chromium. The clay was characterized by using X-ray diffraction (XRD), cation exchan...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2018/5969178 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832558760012283904 |
|---|---|
| author | Iván Fernando Macías-Quiroga Gloria Inés Giraldo-Gómez Nancy Rocío Sanabria-González |
| author_facet | Iván Fernando Macías-Quiroga Gloria Inés Giraldo-Gómez Nancy Rocío Sanabria-González |
| author_sort | Iván Fernando Macías-Quiroga |
| collection | DOAJ |
| description | This paper presents a mineralogical and physicochemical characterization of a Colombian clay found in an area with the greatest exploitation potential of smectites and possible use as an adsorbent for the removal of chromium. The clay was characterized by using X-ray diffraction (XRD), cation exchange capacity (CEC), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FT-IR), thermal analysis (TGA/DSC), and nitrogen adsorption at 77 K. The homoionized clay was used as an adsorbent for the removal of Cr(III) in an aqueous solution. The homoionized clay was modified with hexadecyltrimethylammonium bromide (HDTMA-Br), and the organoclay obtained was evaluated for the adsorption of Cr(VI) in aqueous solution. The XRD analysis showed that the clay from Armero-Guayabal is primarily constituted by smectite (48 wt%) followed by quartz mineral (21 wt%). The chemical analysis of bulk clay showed that the predominant oxides are SiO2 (55.81 wt%), Al2O3 (16.25 wt%), and Fe2O3 (7.51 wt%), and the nitrogen adsorption indicated that the bulk clay has a specific surface area of 45.1 m2/g. Homoionized clay and organoclay achieved Cr(III) and Cr(VI) removals greater than 85.05 ± 2.04% (pH between 3 and 4) and 82.93 ± 1.03% (pH between 3 and 5), respectively, proving the potential of these materials for the removal of heavy metals in an aqueous solution. |
| format | Article |
| id | doaj-art-e70135e99f674bb1b717479289653c5c |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-e70135e99f674bb1b717479289653c5c2025-02-03T01:31:37ZengWileyThe Scientific World Journal2356-61401537-744X2018-01-01201810.1155/2018/59691785969178Characterization of Colombian Clay and Its Potential Use as AdsorbentIván Fernando Macías-Quiroga0Gloria Inés Giraldo-Gómez1Nancy Rocío Sanabria-González2Departamento de Ingeniería Química, Facultad de Ingeniería y Arquitectura, Universidad Nacional de Colombia Sede Manizales, Campus La Nubia, Km 7 Vía al Aeropuerto, AA 127, Manizales, ColombiaDepartamento de Física y Química, Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Colombia Sede Manizales, Campus La Nubia, Km 7 Vía al Aeropuerto, AA 127, Manizales, ColombiaDepartamento de Ingeniería Química, Facultad de Ingeniería y Arquitectura, Universidad Nacional de Colombia Sede Manizales, Campus La Nubia, Km 7 Vía al Aeropuerto, AA 127, Manizales, ColombiaThis paper presents a mineralogical and physicochemical characterization of a Colombian clay found in an area with the greatest exploitation potential of smectites and possible use as an adsorbent for the removal of chromium. The clay was characterized by using X-ray diffraction (XRD), cation exchange capacity (CEC), X-ray fluorescence (XRF), Fourier transform infrared spectroscopy (FT-IR), thermal analysis (TGA/DSC), and nitrogen adsorption at 77 K. The homoionized clay was used as an adsorbent for the removal of Cr(III) in an aqueous solution. The homoionized clay was modified with hexadecyltrimethylammonium bromide (HDTMA-Br), and the organoclay obtained was evaluated for the adsorption of Cr(VI) in aqueous solution. The XRD analysis showed that the clay from Armero-Guayabal is primarily constituted by smectite (48 wt%) followed by quartz mineral (21 wt%). The chemical analysis of bulk clay showed that the predominant oxides are SiO2 (55.81 wt%), Al2O3 (16.25 wt%), and Fe2O3 (7.51 wt%), and the nitrogen adsorption indicated that the bulk clay has a specific surface area of 45.1 m2/g. Homoionized clay and organoclay achieved Cr(III) and Cr(VI) removals greater than 85.05 ± 2.04% (pH between 3 and 4) and 82.93 ± 1.03% (pH between 3 and 5), respectively, proving the potential of these materials for the removal of heavy metals in an aqueous solution.http://dx.doi.org/10.1155/2018/5969178 |
| spellingShingle | Iván Fernando Macías-Quiroga Gloria Inés Giraldo-Gómez Nancy Rocío Sanabria-González Characterization of Colombian Clay and Its Potential Use as Adsorbent The Scientific World Journal |
| title | Characterization of Colombian Clay and Its Potential Use as Adsorbent |
| title_full | Characterization of Colombian Clay and Its Potential Use as Adsorbent |
| title_fullStr | Characterization of Colombian Clay and Its Potential Use as Adsorbent |
| title_full_unstemmed | Characterization of Colombian Clay and Its Potential Use as Adsorbent |
| title_short | Characterization of Colombian Clay and Its Potential Use as Adsorbent |
| title_sort | characterization of colombian clay and its potential use as adsorbent |
| url | http://dx.doi.org/10.1155/2018/5969178 |
| work_keys_str_mv | AT ivanfernandomaciasquiroga characterizationofcolombianclayanditspotentialuseasadsorbent AT gloriainesgiraldogomez characterizationofcolombianclayanditspotentialuseasadsorbent AT nancyrociosanabriagonzalez characterizationofcolombianclayanditspotentialuseasadsorbent |