Valorization of Date Pits as an Effective Biosorbent for Remazol Brilliant Blue Adsorption from Aqueous Solution

• Type: Article in International Scientific Journal
• Date: 2020

Authors

Thiam, A (Author) Other; Tanji, K (Author) Other; Assila, O (Author) Other; Zouheir, M (Author) Other; Haounati, R (Author) Other; Arrahli, A (Author) Other; Abeid, A (Author) Other; Lairini, S (Author) Other; Bouslamti, R (Author) Other; Zerouq, F (Author) Other; Kherbeche, A (Author) Other

Journal

Title: Journal of Chemistry

Vol. 2020

Pages: 1-14

ISSN: 2090-9063

Publisher: Hindawi

Other information

Authenticus ID: P-018-WFE

DOI: 10.1155/2020/4173152

Abstract (EN): <jats:p>In this work, the adsorption of Remazol Brilliant Blue (RBB) over raw date pits (RDPs) as an inexpensive adsorbent has been examined. In addition, all parameters such as the adsorbent mass, solution pH, RDP particle size, RBB initial concentration, and temperature on the adsorption of RBB influencing the adsorption procedure were studied to provide fundamental information of the adsorption equilibrium. The characterization of RDP material is investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FTIR). Based on the calculation, the kinetic rate of the adsorption was well modeled by pseudo-second-order and Langmuir isotherm. Surface functional groups of RDP have substantially been influenced by the adsorption characteristics of RBB. The capacity of the adsorption has achieved 105¿mg/g and a removal efficiency of 90.4% at 1.5¿g/L RDP mass, 40¿mg/L initial dye concentration, pH 2, temperature of 328¿K, 40¿<jats:italic>µ</jats:italic>m particle size, and contact time of 50¿min. The capacity of the adsorption could reach 198¿mg/g by increasing the ionic strength of RBB solution. Desorption tests showed that RDP adsorbent has the disadvantage of losing efficiency while reusing for many cycles. However, it still abundant and inexpensive. Therefore, RDP can be used as a potential low-cost bioabsorbent for the elimination of RBB from wastewater.</jats:p>

Language: English

Type (Professor's evaluation): Scientific