Abstract
An efficient and new magnetic nanoadsorbent photocatalyst was fabricated by co-precipitation technique. This research focuses on understanding metal removal process and developing a cost-effective technology for treatment of heavy metal-contaminated industrial wastewater. In this investigation, magnetic nanoadsorbent has been employed for the removal of Zn(II) ions from aqueous solutions by a batch adsorption technique. The adsorption equilibrium data fitted very well to Langmuir and Freundlich adsorption isotherm models. The thermodynamics of Zn(II) ions adsorption onto the magnetic nanoadsorbents indicated that the adsorption was spontaneous, endothermic and physical in nature. Surface morphology of magnetic nanoadsorbent by scanning electron microscopy (SEM) and elemental analysis by EDX technique. The structural and photocatalytic properties of magnetic nanoadsorbent were characterized using X-ray diffraction (XRD) and FTIR techniques. Also, the magnetic properties of synthesized magnetic nanoadsorbent were determined by vibrating spinning magnetometer (VSM).
Highlights
Nanotechnology has been considered as one of the most important advancements in science and technology
This research focuses on understanding metal removal process and developing a cost-effective technology for treatment of heavy metal-contaminated industrial wastewater
Magnetic nanoadsorbent has been employed for the removal of Zn(II) ions from aqueous solutions by a batch adsorption technique
Summary
Nanotechnology has been considered as one of the most important advancements in science and technology. Nanoparticles are one of the important building blocks in fabrication of nanomaterials Their basic properties, extremely small size and high surface area to volume ratio, provide better kinetics for the adsorption of metal ions from aqueous solutions. For such an application, it is necessary to use a method of purification that does not generate secondary waste and involves materials that can be recycled and used on an industrial scale (Ngomsik et al 2005). Activated carbon requires complexing agents to improve its removal performance for inorganic matters This situation makes it no longer attractive to be widely used in small-scale industries because of cost inefficiency. This new technique developed is beneficial to water treatment and water purification processes
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