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ID:14578813
大小:310.00 KB
页数:27页
时间:2018-07-29
《固体超强酸so-tiofeo的光催化降解含酚废水 毕业论文》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、摘要固体超强酸SO42-/TiO2/Fe2O3的光催化降解含酚废水摘要本文通过制备固体超强酸SO42-/TiO2/Fe2O3为基础,以废水中的苯酚作为研究对象,采用4-氨基安替比林紫外分光光度法作为分析方法,研究SO42-/TiO2/Fe2O3光催化降解苯酚的特性,探讨了影响SO42-/TiO2/Fe2O3光催化降解水中苯酚的因素。并且测出了在不同温度下制备的固体超强酸对水中苯酚的影响。主要结论如下:影响影响SO42-/TiO2/Fe2O3光催化降解苯酚行为的因素主要有苯酚溶液初始浓度、光照因素、溶液
2、pH值、反应时间、催化剂投加量等。苯酚初始浓度越高,降解率越低;紫外光源效果最好,相同条件下光距越小苯酚降解率越高,有效水深越小苯酚降解率越高;苯酚降解率受溶液pH值的影响较大,整体酸性条件下降解率比碱性体条件要高;苯酚降解率随反应时间的延长越来越高,刚开始降解率升高较快,最后趋于平缓;苯酚降解率随着催化剂SO42-/TiO2/Fe2O3投加量的增加而增高,开始阶段降解率增加较快,最后保持稳定。关键词:SO42-/TiO2/Fe2O3,光催化降解,含酚废水VAbstractSolidsuperacid
3、SO42-/TiO2/Fe2O3lightcatalyticdegradationofhydroxybenzenewastewaterAbstractThisarticlethroughthepreparationofsolidsuperacidSO42-/TiO2/Fe2O3tostudythewastewaterofphenol,Themethodofspectrophotometryin4-Aminor-AntiPyrinewasusedtoanalysissephenolinthisstudy
4、.theSO42-/TiO2/Fe2O3photocatalyticdegradationofcharacteristics,discussestheinfluenceSO42-/TiO2/Fe2O3photocatalyticdegradationofthewaterofthefactors.Themainconclusionsareasfollows:affectedSO42-/TiO2/Fe2O3photocatalyticdegradationofphenolbehaviorarethemaj
5、orfactorsoftheinitialconcentrationofthesolution,illuminationfactors,pHvalue,solutionreactiontime,catalystdosingquantity,etc.TheUVlightsource,thebesteffectunderthesameconditionsfromthesmallerlightofthedegradationrateishigh,thelesseffectivewaterdepthofthe
6、higherthedegradationrate;theoveralldeclinethanthealkalinesolutionratehigherbodycondition;Thedegradationrateofreactiontimewiththeextensionofmoreandmorehigh,juststartdegradationrateincreasesquickly,finallytendtogently;PhenolascatalystdegradationateSO42-/T
7、iO2/Fe2O3dosingquantityincreasedwiththeincreaseofthestarttage,degradationrateincreasequickly,finallyremainstable.Keywords:SO42-/TiO2/Fe2O3,photocatalyticdegradation,phenol-containingwastewaterV目录目录第1章绪论...................................................
8、......1 1.1课题背景....................................................11.1.1固体超强酸的种类.......................................1 1.1.2含酚废水来源及危害....................................11.1.3酚类化合物的性质及排放现状............................21.2含酚废水处理
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