Researchers at Islamic Azad University (IA), Shahreza branch, Iran, have managed to increase the efficiency for the removal of Nickel (Ni) (II) toxic ion from aqueous solutions by modifying a clinoptilolite nano-zeolite
As well as managing to remove Ni from waste water the researchers also succeeded in simultaneous synthesis of a material with catalytic properties.
Firstly, the researchers converted clinoptilolite zeolite particles into micrometric particles (MCP) via mechanical methods and after doing so converted the particles into nanoparticles (NP). To ensure the elimination of probable impurities, which are caused during the milling process and also the impurities dissolved in water, the researchers refluxed the resultant powder as well as suspending stirring with a magnet employing a magnetic stirrer. Subsequently they made contact between the NPs and DMG alcoholic solution and they prepared a NP exchange modified with a DMG ligand (NP-DMG).
In the research, above, the DMG is a selective ligand for Ni ion, which was used to modify zeolite NPs. During such a process, an adsorbent with desirable selectivity for Ni was obtained and it was shown to increase the adsorption capacity of Ni by a zeolite.
Also, in the research, sorption efficiency and selectivity of the adsorbent towards Ni ion was increased by modifying the nano-zeolite particles with a dimethylglyoxime ligand (CH3C(NOH)C(NOH)CH3, dmgH2) and in doing so a catalyst was obtained as a by-product. The application of natural zeolite as the bed is the unique characteristics of the research because it is available, cost-effective and accessible.
The adsorbent produced in the method described. above, can be applied in the removal of Ni ion from waste waters in industries, such as cell fabrication and plating. Furthermore the absorbent can be used as a catalyst in partial oxidation of some alcohols after adsorption of Ni. Original article available here
As with other Iranian research council studies, the future potential of NP fabrications has been handsomely sold. However, as also stated previously, DCN Corp strongly believes it can compete by providing a high quality, cost-effective and even fabrication of NPs. Going forward, if you and/or your colleagues are interested in making DCN Corp's alternative process reality - please ensure to contact the company as soon as practicably possible.