Synthesis, properties and applications of silica-immobilized 8-quinolinol: Part 1. Characterization of silica-immobilized 8-quinolinol synthesized via a Mannich reaction

✍ Scribed by Chi-Ren Lan; Mo-Hsiung Yang

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 772 KB
• Volume: 287
• Category: Article
• ISSN: 0003-2670
• DOI: 10.1016/0003-2670(94)85107-7

✦ Synopsis

A one-step Mannich reaction has been developed for the immobilization of lquinolinol on aminopropylsilica gel that results in a product exhibiting a capacity of 466 f 20 pmol g -' for copper(B) ions. Capacity measurements were made by copper(B) uptake and elemental analysis. Characterization of the silica bound ligands in this synthetic context including IR spectrometry, "C NMR spectrometty, acid-base properties and stabilities were presented. The effect of pH on the extraction of coppe.rfIIl, nickel(B) and cadmium(B) for silica-immobilized 8quinolinol was also evaluated.