Abstract
A novel polymethyl methacrylate/boehmite nanocomposite with remarkably enhanced adsorption performance of Cu(II) was synthesized from {text{Al}}({text{NO}}_{3} )_{3} cdot 9{text{H}}_{2} {text{O}} using a facile sol–gel method. The effects of boehmite content, contact time and morphology of hybrid (pH of synthesis) as the main parameters on removal efficiency and removal capability of hybrid on copper ions have been explored. Composites contained between 0.7 and 5wt% boehmite content and those with dissimilar morphology prepared with different pH values showed different adsorption behavior. Batch adsorption experiments show that the adsorption performance of the hybrids was enhanced with increased boehmite and contact time. The highest removal efficiency and adsorption capability were achieved when the hybrid was prepared at pH 8 with associated increased catalytic activity.Graphic abstract
Highlights
The pollution of water via toxic heavy metals through the evacuation of industrial wastewater is a global environmental issue [1]
Because the absorption of copper ions occurs in certain sites of the hybrid, such as hydroxyl groups, it can be seen that the proper dispersion of boehmite particles in the polymer is of great importance and performing chemical reactions from the precursors can increase the possibility of achieving homogeneous structures
It is well known that boehmite as oxyhydroxide of aluminum can be used in water applications [28, 29]
Summary
The pollution of water via toxic heavy metals through the evacuation of industrial wastewater is a global environmental issue [1]. Growing industrialization has resulted in the discharge of toxic heavy metals, such as copper, lead, arsenic, cadmium, and chromium [2,3,4] into water. Copper has been identified as a contaminant due to its prevalent existence and toxic effect upon the environment. It catalyzes the development of highly reactive oxygen species, which leads to lipid peroxidation and the lack of the compact form of glutathione which rises the methemoglobin content [5]. To reduce or avoid major toxic effects on ecosystems, it is desirable to develop and improve highly selective and efficient tools to remove/recover metal ions from natural and waste water which has become an imperative problem [7]
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