Carbon Nanofibers: A New Adsorbent for Copper Removal from Wastewater
This research describes the adsorption of Cu<sup>2+</sup> onto a helical ribbon carbon nanofiber. The characterization of carbon nanofiber by zeta potential showed an isoelectronic pH of 1.9. The influence of different adsorption factors, such as stirring speed, temperature, pH, adsorben...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-11-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/8/11/914 |
| _version_ | 1811208943892955136 |
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| author | Irene García-Díaz Felix Antonio López Francisco José Alguacil |
| author_facet | Irene García-Díaz Felix Antonio López Francisco José Alguacil |
| author_sort | Irene García-Díaz |
| collection | DOAJ |
| description | This research describes the adsorption of Cu<sup>2+</sup> onto a helical ribbon carbon nanofiber. The characterization of carbon nanofiber by zeta potential showed an isoelectronic pH of 1.9. The influence of different adsorption factors, such as stirring speed, temperature, pH, adsorbent concentration, etc., on the Cu<sup>2+</sup> adsorption capacity have been evaluated. The pH has a great influence on Cu<sup>2+</sup> adsorption, with the maximum adsorption capacity reached at a pH of 10. The experimental data fit well to pseudo-second order kinetic and Langmuir isotherm models (<i>q</i><sub>m</sub> = 8.80 mg·g<sup>−1</sup>) at <i>T</i> = 298 K and pH = 4. The Cu<sup>2+</sup> adsorption could be explained by the particle diffusion model. Results showed that carbon nanofiber could be successfully used for the elimination of Cu<sup>2+</sup> from wastewater. |
| first_indexed | 2024-04-12T04:31:36Z |
| format | Article |
| id | doaj.art-b7c179bada4e4a43a92126aeafd7a599 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-04-12T04:31:36Z |
| publishDate | 2018-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-b7c179bada4e4a43a92126aeafd7a5992022-12-22T03:47:56ZengMDPI AGMetals2075-47012018-11-0181191410.3390/met8110914met8110914Carbon Nanofibers: A New Adsorbent for Copper Removal from WastewaterIrene García-Díaz0Felix Antonio López1Francisco José Alguacil2Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC), Avda. Gregorio del Amo, 8, 28040 Madrid, SpainCentro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC), Avda. Gregorio del Amo, 8, 28040 Madrid, SpainCentro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC), Avda. Gregorio del Amo, 8, 28040 Madrid, SpainThis research describes the adsorption of Cu<sup>2+</sup> onto a helical ribbon carbon nanofiber. The characterization of carbon nanofiber by zeta potential showed an isoelectronic pH of 1.9. The influence of different adsorption factors, such as stirring speed, temperature, pH, adsorbent concentration, etc., on the Cu<sup>2+</sup> adsorption capacity have been evaluated. The pH has a great influence on Cu<sup>2+</sup> adsorption, with the maximum adsorption capacity reached at a pH of 10. The experimental data fit well to pseudo-second order kinetic and Langmuir isotherm models (<i>q</i><sub>m</sub> = 8.80 mg·g<sup>−1</sup>) at <i>T</i> = 298 K and pH = 4. The Cu<sup>2+</sup> adsorption could be explained by the particle diffusion model. Results showed that carbon nanofiber could be successfully used for the elimination of Cu<sup>2+</sup> from wastewater.https://www.mdpi.com/2075-4701/8/11/914carbon nanofibersmetal adsorptioncarbon nanomaterialscopper adsorptionwastewater |
| spellingShingle | Irene García-Díaz Felix Antonio López Francisco José Alguacil Carbon Nanofibers: A New Adsorbent for Copper Removal from Wastewater Metals carbon nanofibers metal adsorption carbon nanomaterials copper adsorption wastewater |
| title | Carbon Nanofibers: A New Adsorbent for Copper Removal from Wastewater |
| title_full | Carbon Nanofibers: A New Adsorbent for Copper Removal from Wastewater |
| title_fullStr | Carbon Nanofibers: A New Adsorbent for Copper Removal from Wastewater |
| title_full_unstemmed | Carbon Nanofibers: A New Adsorbent for Copper Removal from Wastewater |
| title_short | Carbon Nanofibers: A New Adsorbent for Copper Removal from Wastewater |
| title_sort | carbon nanofibers a new adsorbent for copper removal from wastewater |
| topic | carbon nanofibers metal adsorption carbon nanomaterials copper adsorption wastewater |
| url | https://www.mdpi.com/2075-4701/8/11/914 |
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