The formation of hybrid carbon nanomaterial by chemical vapor deposition: an efficient adsorbent for enhanced removal of methylene blue from aqueous solution.

Autor: Alayan HM; University of Malaya Centre for Ionic Liquids, University of Malaya, Kuala Lumpur 50603, Malaysia E-mail: mdsd68j@gmail.com; Department of Chemical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia., Alsaadi MA; University of Malaya Centre for Ionic Liquids, University of Malaya, Kuala Lumpur 50603, Malaysia E-mail: mdsd68j@gmail.com; Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur 50603, Malaysia., Das R; Nanotechnology and Catalysis Research Centre (NANOCAT), University of Malaya, Kuala Lumpur 50603, Malaysia., Abo-Hamad A; University of Malaya Centre for Ionic Liquids, University of Malaya, Kuala Lumpur 50603, Malaysia E-mail: mdsd68j@gmail.com; Department of Chemical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia., Ibrahim RK; University of Malaya Centre for Ionic Liquids, University of Malaya, Kuala Lumpur 50603, Malaysia E-mail: mdsd68j@gmail.com; Department of Civil Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia., AlOmar MK; University of Malaya Centre for Ionic Liquids, University of Malaya, Kuala Lumpur 50603, Malaysia E-mail: mdsd68j@gmail.com; Department of Civil Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia., Hashim MA; University of Malaya Centre for Ionic Liquids, University of Malaya, Kuala Lumpur 50603, Malaysia E-mail: mdsd68j@gmail.com; Department of Chemical Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia.
Jazyk: angličtina
Zdroj: Water science and technology : a journal of the International Association on Water Pollution Research [Water Sci Technol] 2018 Mar; Vol. 77 (5-6), pp. 1714-1723.
DOI: 10.2166/wst.2018.057
Abstrakt: In this study, carbon species were grown on the surface of Ni-impregnated powder activated carbon to form a novel hybrid carbon nanomaterial by chemical vapor deposition. The carbon nanomaterial was obtained by the precipitation of the methane elemental carbon atoms on the surface of the Ni catalyst. The physiochemical properties of the hybrid material were characterized to illustrate the successful growth of carbon species on the carbon substrate. The response surface methodology was used for the evaluation of adsorption parameters effect such as pH, adsorbent dose and contact time on the percentage removal of MB dye from aqueous solution. The optimum conditions were found to be pH = 11, adsorbent dose = 15 mg and contact time of 120 min. The material we prepared showed excellent removal efficiency of 96% for initial MB concentration of 50 mg/L. The adsorption of MB was described accurately by the pseudo-second-order model with R 2 of 0.998 and q e of 163.93 (mg/g). The adsorption system showed the best agreement with Langmuir model with R 2 of 0.989 and maximum adsorption capacity (Q m ) of 250 mg/g.
Databáze: MEDLINE
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