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Preparation and properties of magnetic core-shell TiO_2/CoFe_2O_4 photocatalyst
Author(s): 
Pages: 691-695
Year: Issue:  5
Journal: Materials Science and Technology

Keyword:  GetLinkList(KeywordFilter('光催化剂核壳结构TiO2/CoFe2O4磁载光催化剂')'kw''CJFD');
Abstract: 纳米TiO2是一种高效的光催化剂,为了解决TiO2纳米颗粒从悬浮体系中分离回收难的问题,可将其包覆于磁性微球之外,借助于磁场的作用实现快速有效地分离.以尖晶石型CoFe2O4为磁核,制备了核壳型纳米磁性TiO2/CoFe2O4光催化剂,通过水浴恒温条件、热处理温度的改变,以及工艺的调整优化了催化剂的制备工艺.采用XRD和TEM分析了催化剂的结构与形貌.研究发现,水浴90℃恒温2h、600℃热处理后的TiO2/CoFe2O4在降解TNT时表现出了较高的催化活性.表明合适的反应时间和热处理温度是影响催化剂活性的关键因素.
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