Table 3 Adsorption capacity of chitosan-silica composite compared to a partly crosslinked chitosan
From: Synthesis and adsorption properties of chitosan-silica nanocomposite prepared by sol-gel method
Metal | pH | Ionic form | Chitosan-silica composite | Partially crosslinked chitosan beads | ||
|---|---|---|---|---|---|---|
mmol/g | mg/g | mmol/g | mg/g | |||
Vanadium | 2.5 | [V10О28]6−, [НV10О28]5−, [Н2V10О28]4− | 0.05 | 2.5 | 3.59 | 183.1 |
Molybdenum | 2.5 | MoO4 2−, [Mo6O21]6−, [Mo7O24]6− | 1.26 | 121.0 | 4.04 | 387.9 |
Distilled water | МоО4 2− | 0.39 | 37.4 | 1.0 | 96.5 | |
Chromium | Distilled water | НCrO4 − | 0.68 | 35.2 | 0.95 | 49.4 |