“…Among all of these techniques, adsorption method is easily employed, prompt, and highly efficient [18,19,20]. Numerous different adsorbents have been synthesized such as activated carbons [21,22], porous ceramics [23,24], metal oxides [25], and polymeric hydrogels [26][27][28][29][30] for remediation of contaminated water. Indeed, from both environmental and industrial point of view, an ideal adsorbent should have large surface area, porous structure, available active functional sites, mechanical stability and strength, high strength as well as low cost and eco-friendly [31,32,33].…”