Steam activation of waste biomass : highly microporous carbon, optimization of bisphenol A, and diuron adsorption by response surface methodology

Zbair, Mohamed; Ainassaari, Kaisu; El Assal, Zouhair; Ojala, Satu; El Ouahedy, Nadia; Keiski, Riitta L.; Bensitel, Mohammed; Brahmi, Rachid (2018-10-24)
 
Avaa tiedosto
Lataukset: 

URL:
https://doi.org/10.1007/s11356-018-3455-3

Zbair, Mohamed
Ainassaari, Kaisu
El Assal, Zouhair
Ojala, Satu
El Ouahedy, Nadia
Keiski, Riitta L.
Bensitel, Mohammed
Brahmi, Rachid
Springer Nature
24.10.2018

Zbair, M., Ainassaari, K., El Assal, Z. et al. Environ Sci Pollut Res (2018) 25: 35657. https://doi.org/10.1007/s11356-018-3455-3

https://creativecommons.org/licenses/by/4.0/
© The Author(s) 2018. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.
https://creativecommons.org/licenses/by/4.0/
doi:https://doi.org/10.1007/s11356-018-3455-3
Näytä kaikki kuvailutiedot
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe201902286566
Tiivistelmä

Abstract

Highly microporous carbons were prepared from argan nut shell (ANS) using steam activation method. The carbons prepared (ANS@H2O-30, ANS@H2O-90, and ANS@H2O-120) were characterized using X-ray diffraction, scanning electron microscopy, Fourier-transform infrared, nitrogen adsorption, total X-ray fluorescence, and temperature-programmed desorption (TPD). The ANS@H2O-120 was found to have a high surface area of 2853 m²/g. The adsorption of bisphenol A and diuron on ANS@H2O-120 was investigated. The isotherm data were fitted using Langmuir and Freundlich models. Langmuir isotherm model presented the best fit to the experimental data suggesting micropore filling of ANS@H2O-120. The ANS@H2O-120 adsorbent demonstrated high monolayer adsorption capacity of 1408 and 1087 mg/g for bisphenol A and diuron, respectively. The efficiency of the adsorption was linked to the porous structure and to the availability of the surface adsorption sites on ANS@H2O-120. Response surface method was used to optimize the removal efficiency of bisphenol A and diuron on ANS@H2O-120 from aqueous solution.

Kokoelmat
https://creativecommons.org/licenses/by/4.0/
Ellei muuten mainita, aineiston lisenssi on https://creativecommons.org/licenses/by/4.0/