对氨基、巯基及四氧化三铁改性纳米二氧化硅进行了详细介绍,阐明了改性机理,并叙述了带有吸附基团的氨基或巯基改性纳米二氧化硅粒子在重金属离子吸附方面应用的最新进展。
The methods of nano-silica modified by amino,thiol and iron oxide were described,the modification mechanism was illustrated.The adsorption application of amino or thiol modified nano-silica in the terms of heavy metal ions were expounded.