Adsorption study of phosphate ions pollution in aqueous solutions using microwave synthesized magnesium oxide nanoparticles

Abstract

Phosphorus (as phosphate ions) is an essential ingredient that is commonly used in agriculture as both a fertilizer as well as in industry as a detergent which causes significant water pollution. The nanomaterials are mainly involved in removing these ions due to their high surface area. In this study, magnesium oxide nanoparticles (MgO NPs) has been synthesized by microwave method. XRD, AFM and SEM were used to investigate the synthesized MgO nanoparticles. The average particles size of MgO NPs calculated to be range (25-39 nm), and has a cubic structure. The synthesized nanoparticles were tested to remove phosphate ions from aqueous solutions. From the resulted, which found that at a pH 12, temperature 298°C the highest adsorption efficiency of phosphate (72%) as a contact time was 150 minutes. It was found that the adsorption mechanism was spontaneous and endothermic by thermodynamic measurements. Generally, the data indicated a good effectiveness of MgO in the removal of phosphate.

The Use of Combination of Clarithromycin -Nano Oxide Nanoparticles to Doping PVC to Protect it from Photodegradation

“…Films of PVC were prepared by casting method by Using (1 gm) from PVC, (25 gm) clarithromycin, and 0.5 mg of metal oxide nanoparticles (MgO, TiO2, ZnO, and NiO) [5,6] with 100 ml from tetrahydrofuran were stirred for 60 min. sonicated the mixture for 60 min to take out the bubbles and cast it by glass templates and left the THF to vaporize at room temperature for one day.…”

Optimum phosphate ion removal from aqueous solutions using roller kiln industrial solid waste

“…Due to the hydrophilic and three-dimensional polymeric network of polymer hydrogel, it is observed that polymer hydrogel is effective to be used as an adsorbent for phosphate ion removal from wastewater 9 , 14 – 16 . Because, nanomaterials/nanoparticles, snail shell dust and, carbon-based materials (activated carbon and biochar) have exceptionally high surface areas and phosphate adsorption properties, they are widely used for phosphate removal from wastewater 11 , 17 – 23 . In this research an industrial solid waste called roller kiln (RK) is used for phosphate ion removal from aqueous solutions.…”

A Comparative Study of the Photostabilization of Polyvinyl Chloride with Nano and Micro Nickel Oxide

“…In addition to proper disposal, which is essential to safeguard the environment 8 , polymeric materials that decay when exposed to sunlight are favorable because they generate less polymer waste and, therefore, less hazardous products. Photocatalytic degradation of PVC with TiO2 suspensions in an aqueous solution 9,10 has been the subject of the majority of prior research on photocatalytic degradation of polymers 11 .As polymer waste is constantly exposed to sunshine, the photocatalytic decomposition of polymer composites should be investigated further in ambient air 12,13 , Extensive research is now being conducted on oxide at the nanoscale, including 1 to 100 nanometer-sized nanoscale particles 14,15 such as NiO, CuO, ZnO, Co3O4, SiO2, FeO, Cr2O3. Since its size is tiny enough to restrict its electrons, its surface-to-volume ratio is high, making it sensitive to quantum processes [16][17][18] , In this study, nano and microscale NiO were chosen to improve the characteristics of polyvinyl chloride (PVC),numerous applications for the thin films that were produced.…”