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OALib Journal期刊
ISSN: 2333-9721
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纳米纤维铁氧化物柱撑蒙脱土可见光助芬顿降解罗丹明B
DOI: 10.3724/SP.J.1088.2012.20756, PP. 1736-1741
Keywords: 蒙脱土,纳米纤维,芬顿试剂,降解,可见光,铁氧化物,罗丹明B
Abstract:
？利用简单的阳离子交换法制备了系列三核铁簇合物插层蒙脱土固相光助芬顿催化剂.利用X射线粉末衍射、扫描电镜、透射电镜、紫外-可见漫反射光谱、X射线精细结构能谱及等离子体发射光谱对催化剂进行了表征.结果表明,经三核铁簇合物柱撑后,蒙脱土的比表面积显著增加,其表面附着少量纳米纤维织构状的无定形铁氧化物.在过氧化氢及可见光激发下,所制催化剂能够快速降解并矿化染料罗丹明B,表现出良好的多相可见光助芬顿性能.结合反应过程中活性物种的表征结果,初步探讨了该催化剂的可见光助芬顿降解机理.
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