Eco-engineered electrospun La/Rb-MOF/chitosan–PCL nanofibrous membrane for high-performance, recyclable, and sustainable Cr( <scp>vi</scp> ) removal from water
Naoufel Ben Hamadi, Ahlem Guesmi, Wesam Abd El‐Fattah, Mohamed A. El‐Bindary, Mohamed G. El‐Desouky, A.A. El-Bindary
Abstract
at pH 4. Thermodynamic assessments revealed that the adsorption process is spontaneous and endothermic, with the capacity for adsorption enhancing at elevated temperatures. The Box-Behnken design and response surface methodology (RSM) were utilized for optimization, identifying key parameters that influence adsorption effectiveness. Notably, the membrane exhibited excellent recyclability, sustaining a high efficiency for Cr(vi) removal even after five consecutive adsorption-desorption cycles. These results underscore the potential of the La-Rb-MOF/CS-PCL nanofibrous membrane as a durable, reusable, and eco-friendly solution for advanced water purification technologies.