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Title

Carbon Nanofibers: A New Adsorbent for Copper Removal from Wastewater

AuthorsGarcía-Díaz, Irene; López Gómez, Félix Antonio; Alguacil, Francisco José
KeywordsCarbon nanofibers
Metal adsorption
Carbon nanomaterials
Copper adsorption
Wastewater
Issue Date7-Nov-2018
PublisherMultidisciplinary Digital Publishing Institute
CitationMetals 8(11): 914 (2018)
AbstractThis research describes the adsorption of Cu2+ 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 Cu2+ adsorption capacity have been evaluated. The pH has a great influence on Cu2+ 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 (qm = 8.80 mg·g−1) at T = 298 K and pH = 4. The Cu2+ adsorption could be explained by the particle diffusion model. Results showed that carbon nanofiber could be successfully used for the elimination of Cu2+ from wastewater.
Publisher version (URL)https://doi.org/10.3390/met8110914
URIhttp://hdl.handle.net/10261/172546
DOI10.3390/met8110914
ISSN2075-4701
Appears in Collections:(CENIM) Artículos
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