Adsorption of Copper ions by Montmorillonite/Sodium Humate/N-Isopropyl Acrylamide composite

作者：Feng, Y. -l.^*; Yu, L. -j.; Cao, R. -w.

来源：Bulgarian Chemical Communications, 2017, 49(3): 685-689.

• montmorillonite modification
• humatic acid sodium
• Acrylamide
• copper ion
• waste water treatment

The montmorillonite-based composites can be used to adsorb copper ions to relieve contamination. The montmorillonite/sodium humate/copper ion complex, which can be obtained by mixing montmorillonite, sodium humate (surface modification of montmorillonite), and N-isopropyl acrylamide, is ideal candidate for adsorption of copper ions. First, the modified montmorillonite-based adsorbents were characterized by infrared spectroscopy and scanning electron microscopy. Then, effects of incubation time and initial concentration of copper ions on adsorption of copper ion by modified montmorillonite were investigated. The results revealed that modification by (3-acrylamidopropyl) trimethylammonium chloride, N-isopropyl acrylamide, or sodium humate can significantly improve the adsorption capability of montmorillonite. The adsorption rates at initial concentration of 1000 mg/L can be up to 96.98% and 95.02%. In summary, the montmorillonite/sodium humate/N-isopropyl acrylamide composite shows great adsorption capability towards copper ions.

• 出版日期2017
• 单位河南理工大学