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Polymers
Volume 13
Issue 19
10.3390/polym13193285
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Article

Combined Treatment (Alkali + Thermal) of Calotropis procera Fiber for Removal of Petroleum Hydrocarbons in Cases of Oil Spill

by
Raoni Batista dos Anjos
*,
Larissa Sobral Hilário
,
Aécia Seleide Dantas dos Anjos
,
Emily Cintia Tossi de Araújo Costa
,
Tarcila Maria Pinheiro Frota
,
Amanda Duarte Gondim
and
Djalma Ribeiro da Silva
Nucleus of Primary Processing and Reuse of Produced Water and Waste, Federal University of Rio Grande do Norte, Natal 59078-970, RN, Brazil
*
Author to whom correspondence should be addressed.
Polymers 2021, 13(19), 3285; https://doi.org/10.3390/polym13193285
Submission received: 30 August 2021 / Revised: 21 September 2021 / Accepted: 22 September 2021 / Published: 26 September 2021
(This article belongs to the Special Issue Polymers and Fibers)
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Abstract

The objective of this study was to evaluate the Calotropis procera fiber treated with NaOH combined with heat treatment as sorbent material for removal of petroleum and derivatives in cases of oil spill. The effects of oil viscosity, fiber/oil contact time, and the type of sorption system (oil and oil/water) were evaluated by experimental planning. The fiber obtained was characterized by Fourier transform infrared spectroscopy (FTIR), field-emission scanning electron microscopy (SEM-FEG), thermogravimetric analysis (TG/DTG), contact angle, and wettability. The fiber treated by combining NaOH and heat treatment (CPNaOHT) exhibited a large structure with an internal diameter of 42.99 ± 3.98 μm, roughness, and hydrophobicity on the surface with a contact angle of 101 ± 2°. The sorption capacity of oil ranged from 190.32 g/g to 98.9 g/g. After five cycles of recycling, the fiber still maintains about 70% of its initial sorption capacity and presented low liquid desorption (0.25 g). In this way, it can be used as an efficient sorbent to clean up spills of oil and oil products.
Keywords: sorption; petroleum; paraffin; oil spill; experimental planning; Calotropis procera sorption; petroleum; paraffin; oil spill; experimental planning; Calotropis procera

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MDPI and ACS Style

dos Anjos, R.B.; Hilário, L.S.; dos Anjos, A.S.D.; de Araújo Costa, E.C.T.; Frota, T.M.P.; Gondim, A.D.; da Silva, D.R. Combined Treatment (Alkali + Thermal) of Calotropis procera Fiber for Removal of Petroleum Hydrocarbons in Cases of Oil Spill. Polymers 2021, 13, 3285. https://doi.org/10.3390/polym13193285

AMA Style

dos Anjos RB, Hilário LS, dos Anjos ASD, de Araújo Costa ECT, Frota TMP, Gondim AD, da Silva DR. Combined Treatment (Alkali + Thermal) of Calotropis procera Fiber for Removal of Petroleum Hydrocarbons in Cases of Oil Spill. Polymers. 2021; 13(19):3285. https://doi.org/10.3390/polym13193285

Chicago/Turabian Style

dos Anjos, Raoni Batista, Larissa Sobral Hilário, Aécia Seleide Dantas dos Anjos, Emily Cintia Tossi de Araújo Costa, Tarcila Maria Pinheiro Frota, Amanda Duarte Gondim, and Djalma Ribeiro da Silva. 2021. "Combined Treatment (Alkali + Thermal) of Calotropis procera Fiber for Removal of Petroleum Hydrocarbons in Cases of Oil Spill" Polymers 13, no. 19: 3285. https://doi.org/10.3390/polym13193285

APA Style

dos Anjos, R. B., Hilário, L. S., dos Anjos, A. S. D., de Araújo Costa, E. C. T., Frota, T. M. P., Gondim, A. D., & da Silva, D. R. (2021). Combined Treatment (Alkali + Thermal) of Calotropis procera Fiber for Removal of Petroleum Hydrocarbons in Cases of Oil Spill. Polymers, 13(19), 3285. https://doi.org/10.3390/polym13193285

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