摘要
利用水热法合成介孔材料MCM-41及Fe负载的MCM-41(Fe/MCM-41),并通过催化臭氧氧化水中对氯苯甲酸(p-CBA),考察其催化性能.经过X射线粉末衍射(XRD)、紫外可见漫反射光谱(DR UV-Vis)、傅立叶红外光谱(FT-IR)及比表面(BET)表征,表明所合成的MCM-41及Fe/MCM-41具有较规则的六方孔道结构及较大的比表面积.MCM-41与Fe/MCM-41的加入有利于p-CBA和TOC的去除,其中Fe/MCM-41与O3具有协同效应,表现出较好的催化活性.
The catalytic activity of MCM -41 and Fe loaded MCM -41 （Fe/MCM -41 ） for ozonation of p -chlorobenzoic acid （p- CBA） in aqueous solution was investigated. MCM -41 and Fe/MCM-41 were synthesized by a direct hydrothermal method and characterized by XRD, DR UV -Vis and FT -IR. The results showed that MCM -41 and Fe/MCM -41 presented mesoporous hexagonal structure with large surface area. The presence of MCM - 41 and Fe/MCM -41 improved the p - CBA and TOC removal in the ozonation process, while Fe/MCM -41 showed better catalytic activity because of its synergistic effect with O3. The TOC （p - CBA） removal efficiency in Fe/MCM -41/O3 process was 51.4% （86. 6% ） at 60 （30） min, 39.4 % （79.4%） using MCM -41 as catalyst, only 35.4% （72. 1% ） with ozone alone.
出处
《华南师范大学学报（自然科学版）》
CAS
北大核心
2013年第2期74-78,共5页
Journal of South China Normal University(Natural Science Edition)
基金
广东省科技计划项目(2011B030800010)
