STUDY OF ADSORPTION ISOTHERMS AND KINETICS OF NAPHTHALENE FROM AQUEOUS SOLUTIONS BY MULTI -WALL CARBON NANOTUBES

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FAZLOLLAHI S.; HASSANI A.; BORGHEI M.; POURZAMANI H.

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Journal: Journal of Ilam University of Medical Sciences Year:2016 | Volume:24 | Issue:1 Page(s): 162-173

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Title

STUDY OF ADSORPTION ISOTHERMS AND KINETICS OF NAPHTHALENE FROM AQUEOUS SOLUTIONS BY MULTI -WALL CARBON NANOTUBES

Author(s)

FAZLOLLAHI S. | HASSANI A. | BORGHEI M. | POURZAMANI H. | Issue Writer Certificate

Keywords

MULTI-WALLED CARBON NANOTUBESQ1

POLYCYCLIC AROMATIC HYDROCARBONSQ1

ADSORBTIONQ2

NAPHTALENE FROM AQUEOUS SOLUTIONQ2

ISOTERMQ1

NAPHTALENEQ1

Abstract

Introduction: Most of the early aromatic hydrocarbon, naphthalene with two benzene rings causes anemia and damage to the retina. It is also toxic to plants and aquatic.The removal of this compound from water by MULTI-WALLED CARBON NANOTUBES with the aim of determining the removal efficiency and optimum variables examination are reviewed.Matherials & methods: This study was done in Batch reactor to investigate the effects of Variations such as contact time (5, 15, 30, 60, 90, 120, 180 min), naphthalene concentration (0.1, 0.5, 1, 3, 5, 7.5, 10, 15 mg/l and dose of nanotubes (0.01, 0.05, 0.1, 0.2, 0.3, 0.5, 1, 2) gr/l and pH (3, 5, 7, 10 inconcentration 3, 7.5, 10 mg/l of naphthalene in removal of naphthalene. Experimental data were evaluated with Freundlich and Langmuir isotherm models for adsorption equilibrium and different isotherm modelsfor kinetics of absorption were analyzed by comparing the total number coefficient of samples by the software.Findings: Maximum surface adsorption of naphthalene onto multi-walled carbonnanotubes was 33.3 mg/gr and maximum adsorption had occurred at acidic pH (pH=3), And appropriate time for receivingmaximum adsorption of naphthalene and equalizationstate is 90 min. with in creasingthe adsorbent dose fro 0.2 to 0.3 gr/ l, removal efficiency of naphthalenesolutionwith 10 mg/l initial concentration in creasedfrom 97 %to 99.99 %, and with increasingnaphthaleneinitial concentration from 3 to10 mg/l, removal efficiency increased from 73.33to 99.99 % at pH=3 after 90min. Adsorption mechanism consistent with freundlichIsoterm (R2=0.99) and followedpseudo first-order kinetics. (R2=0.96).Discussion & Conclusions: Due to small size, large surface area and consequently very high reactivity of MULTI-WALLED CARBON NANOTUBES, this adsorbent could be effective for removal of.

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APA: Copy

FAZLOLLAHI, S., HASSANI, A., BORGHEI, M., & POURZAMANI, H.. (2016). STUDY OF ADSORPTION ISOTHERMS AND KINETICS OF NAPHTHALENE FROM AQUEOUS SOLUTIONS BY MULTI -WALL CARBON NANOTUBES. JOURNAL OF ILAM UNIVERSITY OF MEDICAL SCIENCES, 24(1), 162-173. SID. https://sid.ir/paper/90129/en

Vancouver: Copy

FAZLOLLAHI S., HASSANI A., BORGHEI M., POURZAMANI H.. STUDY OF ADSORPTION ISOTHERMS AND KINETICS OF NAPHTHALENE FROM AQUEOUS SOLUTIONS BY MULTI -WALL CARBON NANOTUBES. JOURNAL OF ILAM UNIVERSITY OF MEDICAL SCIENCES[Internet]. 2016;24(1):162-173. Available from: https://sid.ir/paper/90129/en

IEEE: Copy

S. FAZLOLLAHI, A. HASSANI, M. BORGHEI, and H. POURZAMANI, “STUDY OF ADSORPTION ISOTHERMS AND KINETICS OF NAPHTHALENE FROM AQUEOUS SOLUTIONS BY MULTI -WALL CARBON NANOTUBES,” JOURNAL OF ILAM UNIVERSITY OF MEDICAL SCIENCES, vol. 24, no. 1, pp. 162–173, 2016, [Online]. Available: https://sid.ir/paper/90129/en

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