Synthesis of Tert-Octylsalicylaldoxime and Its Application in Extraction of Cu(II)

Abstract

The alkyl salicylaldoxime has attracted more and more attention recently due to the complex branched alkyl groups. In this study, a novel alkyl salicylaldoxime, tert-octylsalicylaldoxime, was successfully synthesized by the one-pot method. The yield and purity by the elemental analysis were 96.17 and 94.13%, respectively. The structure was confirmed by elemental analysis, FT-IR, 1H NMR (Nuclear Magnetic Resonance), 13C NMR spectroscopy, and MS. Results showed that tert-octylsalicylaldoxime with a new structure exhibited excellent extraction ability and selectivity for Cu(II) and can be successfully used to recover Cu from copper-nickel alloy electroplating wastewater. Thus, this product has the potential to be used as a powerful copper extractant in the future.

PVDF Nanofiber Modified with ZnO Nanowires/Polydopamine for the Treatment of Sewage Containing Heavy Metals, Organic Dyes, and Bacteria

“…For heavy metal ion pollution, copper pollution is the most studied representative model pollutant. At present, the methods used to treat copper-containing sewage mainly include physical and chemical techniques such as reverse osmosis, extraction, adsorption, precipitation, displacement, electrolysis, and other chemical methods. − Among these methods, adsorption is considered one of the most cost-effective and environmentally friendly technologies. Some studies tend to use adsorbents in the powdered state to achieve better contact between the adsorbents and the effluent, thereby enhancing the adsorption efficiency.…”