科研之友
微信
新浪微博
Facebook
分享链接
摘要
Nanoscale SBA-15 molecular sieve was synthesized by hydrothermal method and modified with ethylenediamine tetraacetic acid. The prepared materials were characterized by powder X-ray diffraction and scanning electron microscopy. The modified SBA-15 was used as sorbents to adsorb the heavy metal ions Cd(2+) and Cr(6+) in water body. The effects of pH, temperature and adsorption time on the efficiency of adsorption were studied and the optimum adsorptive conditions were confirmed. The results showed that the adsorptive effect of the material is the best and adsorptive ratio reaches 99.0% when the pH is 4, temperature is 35 degrees C and adsorption time is 0.5 h.
