摘要
分别以Ti-SBA-15和Al-SBA-15分子筛作主体，对应地以Al和Ti作客体，采用浸没-熔融法制备Al-Ti-SBA-15和Ti-Al-SBA-15二类6种新型纳米复合材料，以FT-IR、粉末XRD、低温N2吸附-脱附仪分别对材料进行表征，材料具有六方圆柱形介孔结构。以20 mL、Pb2＋浓度100×10-6的废水为探针，考察材料对重金属离子的吸附能力。实验结果表明0.0500 g左右的Al-Ti-SBA-15和Ti-Al-SBA-15二类材料呈现了99.53～99.82%的金属离子吸附率，远高于载体 SBA-15的吸附率78.28%，改性材料吸附性能明显提高；0.0504 g Al-Ti-SBA-15（4∶1）和0.0503 g Ti-Al-SBA-15（1∶2）分别呈现了最高离子吸附率99.78%和99.82。
Al-Ti-SBA-15 and Ti-Al-SBA-15 were prepared by impregration-fusion method, using Ti-SBA-15 and Al-SBA-15 molecular sieve as main body, Al and Ti as the object, respectively. These materials were characterized by FT-IR, powder XRD, N2 adsorption-desorption instrument, and it was confirmed that these materials have characteristics of the mesoporous material with hexagonal cylindrical structure. 20 mL waste water （ Pb2＋concentration：100×10-6）was used to study the adsorption capacity of new materials for heavy metal in waste water. The results showed that these materials of Al-Ti-SBA-15 and Ti-Al-SBA-15 in 0.050 0 g showed good absorption rate from 99.253%to 99.82%, which were better than 78.28%of SBA-15. Specially, Al-Ti-SBA-15 （4∶1） in 0.050 4 g and Ti-Al-SBA-15 （1∶2） in 0.050 3 g, showed the best ion adsorption capacity of 99.78%and 99.82%, respectively.
出处
《当代化工》
CAS
2013年第10期1359-1363,共5页
Contemporary Chemical Industry
基金
湖南农业大学引进人才科学基金(11YJ07)
湖南农业大学青年科学基金(09QN02)
