| 用粉煤灰水热合成P型沸石及其对重金属铅离子的吸附 |
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| 引用本文： | 宋凯,刘敬肖,史非,于玲,薛卫平,孙小龙,付瑞娟.用粉煤灰水热合成P型沸石及其对重金属铅离子的吸附[J].大连工业大学学报,2009,28(1). |
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| 作者姓名： | 宋凯 刘敬肖 史非 于玲 薛卫平 孙小龙 付瑞娟 |
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| 作者单位： | 大连工业大学,化工与材料学院,辽宁,大连,116034 |
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| 摘 要： | 以固体废弃物粉煤灰为原料,在水热条件下合成了P型沸石,利用XRD、FTIR和SEM对P型沸石的结构形貌进行了表征,研究了沸石对于铅离子的吸附能力。结果表明,在80℃水热1 d,没有沸石晶体生成;在80℃水热3 d,有沸石中间体和较大量的P型沸石晶体生成;在80℃水热6 d,有大量的P型沸石晶体生成。P型沸石对于废水中的铅离子具有快速而且较高的吸附能力,吸附温度对于去除率有较大的影响,在50℃时去除率最大,可以达到93.28%。
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| 关 键 词： | 粉煤灰 沸石 水热法 吸附 |
Hydrothermal synthesis of zeolite P from flyash and its adsorption to Pb2+ |
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| SONG Kai,LIU Jing-xiao,SHI Fei,YU Ling,XUE Wei-ping,SUN Xiao-long,FU Rui-juan.Hydrothermal synthesis of zeolite P from flyash and its adsorption to Pb2+[J].Journal of Dalian Dalian Polytechnic University,2009,28(1). |
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| Authors: | SONG Kai LIU Jing-xiao SHI Fei YU Ling XUE Wei-ping SUN Xiao-long FU Rui-juan |
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| Abstract: | The zeolite P was synthesized with solid waste of flyash by hydrothermal method.Its structure and morphology was characterized by XRD,FTIR and SEM.There was no zeolite P to be observed after hydrothermal reaction for 1 day at 80 ℃,and the aluminosilicate intermediate and a few zeolite P were observed after 3 days.After hydrothermal reaction for 6 days at 80 ℃ the maximal amount of zeolite P was formed.The obtained zeolite P showed high and fast adsorption to Pb2+ ions occurred in waste water.Temperature plays an important role in the removal efficiencies of Pb2+ ions and the removal rate can be up to 93.28% at 50 ℃. |
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| Keywords: | flyash zeolite hydrothermal method adsorption |
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