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https://www.ias.ac.in/article/fulltext/boms/041/02/0047

Flavone; thin film; cellulose acetate/manganese oxide; uptake capacity; adsorption isotherm models; kinetic study.

The present study depicts the efficiency of cellulose acetate/manganese oxide thin films as adsorbents for selective extraction and detection of flavone in environmental waters. The selectivity of thin films (CA/Mn-1 and CA/Mn-2)was evaluated towards several organic compounds. Based on selectivity study results, CA/Mn-2 thin film was the most selective towards flavone among other compounds. In addition, the effect of other parameters such as contact time andinitial concentration of flavone was investigated to optimize adsorption conditions. The adsorption capacity of flavone was experimentally obtained as 57.96 mg g$^{−1}$ and theoretically calculated from Langmuir equation as 58.48 mg g$^{−1}$, which indicates the high agreement of the results. Moreover, data obtained from kinetic study suggested that the adsorption of flavone onto CA/Mn-1 phase followed a pseudo-second-order kinetic model. Finally, validation of this method has attained reasonable results for determination of flavone in real water samples.

EKRAM Y DANISH¹ HADI M MARWANI^{1 2} MARYA A ALHAZMI¹ SHER BAHADAR KHAN^{1 2} ESRAA M BAKHSH¹ ABDULLAH M ASIRI^{1 2}

1. Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
2. Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia

Published

10 April 2018

Manuscript received

26 January 2017

Accepted

16 August 2017