摘要
采用浸渍法制备了Fe-Al2O3和Ce-Fe-Al2O3复合材料,利用XRD和BET分析了该材料的结构和织构参数,并研究了其常压低温下催化降解高浓度难生物降解的焦化废水的性能。结果表明,适量Ce助剂的添加可明显提高该催化剂的降解性能。以20～40目的γ-Al2O3为载体,掺杂制备载10%Fe-3%Ce/γ-Al2O3的复合材料。在m(H2O2)/m(Ce-Fe-Al2O3)=0.66/1,反应温度75℃,反应体系pH值为3,搅拌速度(500±50)r/min的最佳工艺条件下,焦化废水的CODCr值的降解率高达96.3%。
The heterogeneous Fe-Al2O3and Ce-Fe-Al2O3 materials were prepared by impregnation method.The structure and texture parameter was investigated by X-ray diffraction（XRD）,N2 adsorption/desorption（BET）. The high concentration coking wastewater was catalitically degradated using H2O2 as oxidant,Fe-Al2O3 and CeFe-Al2O3 as catalyst.The results showed that the catalytic degradation performance of Fe-Al2O3 catalyst modified by Ce promoter could be enhanced.A series of reaction process parameters of 3%Ce-10%Fe-Al2O3（20-40mesh）was optimized as follow：the reaction temperature was 75℃,the mass quantity ratio of H2O2/Ce-Fe-Al2O3 was m（H2O2）/m（Ce-Fe-Al2O3）=0.66/1,the pH value was 3,stirring speed was（500±50）r/min.In this condition,the removal rate of CODCrvalue in coking water reached 96.3%.
出处
《功能材料》
EI
CAS
CSCD
北大核心
2010年第10期1765-1767,1771,共4页
Journal of Functional Materials
基金
重庆市科委自然科学基金资助项目(CSTS2008BB7334)
重庆市教委自然科学基金资助项目(KJ090616)
重庆市教改资助项目(0826073)
重庆工学院基金资助项目(2007ZD14)
