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《响应面法优化赤泥负载Co催化剂制备及活性评价-论文.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、第34卷第11期环境科学Vo1.34,No.112013年11月Nov.。2013ENVIR0NMENTALSCIENCE响应面法优化赤泥负载CO催化剂制备及活性评价李华楠,徐冰冰,齐飞,孙德智(1.北京林业大学环境科学与工程学院,北京100083;2.北京林业大学北京市水体污染源控制技术重点实验室,北京100083;3.中国环境科学研究院环境基准与风险评估国家重点实验室,北京100012)摘要:以催化臭氧氧化去除水中苯扎贝特(bezaflbrate,BZF)的处理效果为评价指标,采用Plaekett—Burman和响应面(ResponseSurfaceMethodol
2、ogy,RSM)法对Co/RM催化剂的制备条件进行优化.结果表明,浸渍质量分数和焙烧温度为催化剂制备的主要影响因素,当浸渍质量分数为4.14%、煅烧温度为389%时BZF去除率预测值最高(71.29%).采用上述最佳制备条件制备的Co/RM催化臭氧氧化去除苯扎贝特的去除率为70.74%,与模型预测值十分接近,偏差为1%(<5%),说明响应面法实验设计和数学模型具有较好可靠性.通过比较RM和Co/RM两种催化剂对BZF的催化臭氧氧化去除效果,发现Co/RM催化臭氧氧化去除BZF的效果较为显著.采用BET、XRD和uV.Vis等表征手段对两种催化剂的表面结构和组成进行分析,
3、结果表明两种催化剂的比表面积、总孑L体积存在相同的变化规律(RM4、X703.1文献标识码:A文章编号:0250.3301(2013)11—4376.10PreparationofRedMudLoadedCoCatalysts:OptimizationUsingResponseSurfaceMethodology(RSM)andActivityEvaluationLIHua—nan,XUBing—bing,QIFei’,SUNDe—zhi’(1.CollegeofEnvironmentalScienceandEngineering,BeijingForestryUniversity,Beijing100083,China;2.Beiji5、ngKeyLaboratoryforSourceControlTechnologyofWaterPollution,BeijingForestryUniversity,Beijing100083,China;3.StateKeyLaboratoryofEnvironmentalCriteriaandRiskAssessment,ChineseResearchAcademyofEnvironmentalSciences,Beijing100012,China)Abstract:Theremovaleficiencyofcatalyticozonationofbezafib6、rate(BZF)byredmudloadedCocatalysts(Co/RM)wasusedastheindexvalueinstatisticalexperimentaldesigns.ThemostimportantfactorsinfluencingBZFdegradation(P<0.05)inwaterweredippingmassofcobahandcalcinationtemperature.Undertheconditionsof4.14%ofdippingmassofcobaltand389~Cofcalcinationtemperature.th7、eBZFremovalefficiencywas71.29%ascalculatedbypredictivevalueandamaximumremovalefficiencyof70.74%wasactuallyaehieved.Theexperimentdatawasveryclosetothepredictivevalueandthedeviationwas1%(<5%).Theresultsindicatedthattheresponsesurfacemethodologyandmathematicalmodelwasreliabl
4、X703.1文献标识码:A文章编号:0250.3301(2013)11—4376.10PreparationofRedMudLoadedCoCatalysts:OptimizationUsingResponseSurfaceMethodology(RSM)andActivityEvaluationLIHua—nan,XUBing—bing,QIFei’,SUNDe—zhi’(1.CollegeofEnvironmentalScienceandEngineering,BeijingForestryUniversity,Beijing100083,China;2.Beiji
5、ngKeyLaboratoryforSourceControlTechnologyofWaterPollution,BeijingForestryUniversity,Beijing100083,China;3.StateKeyLaboratoryofEnvironmentalCriteriaandRiskAssessment,ChineseResearchAcademyofEnvironmentalSciences,Beijing100012,China)Abstract:Theremovaleficiencyofcatalyticozonationofbezafib
6、rate(BZF)byredmudloadedCocatalysts(Co/RM)wasusedastheindexvalueinstatisticalexperimentaldesigns.ThemostimportantfactorsinfluencingBZFdegradation(P<0.05)inwaterweredippingmassofcobahandcalcinationtemperature.Undertheconditionsof4.14%ofdippingmassofcobaltand389~Cofcalcinationtemperature.th
7、eBZFremovalefficiencywas71.29%ascalculatedbypredictivevalueandamaximumremovalefficiencyof70.74%wasactuallyaehieved.Theexperimentdatawasveryclosetothepredictivevalueandthedeviationwas1%(<5%).Theresultsindicatedthattheresponsesurfacemethodologyandmathematicalmodelwasreliabl
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