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时间:2020-03-27
《壳聚糖微球非均相光催化降解苯酚.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、第3l卷第6期山东建筑大学学报Vo1.31No.62016焦12月JOURNALOFSHANDONGJIANZHUUNIVERSITYDec.2016文章编号:1673—7644(2016)06—0536—07磁性沸石/壳聚糖微球非均相光催化降解苯酚武道吉,于振宇,任会学,李炳瑾,王杰,(1.山东建筑大学市政与环境工程学院,山东济南250101;2.山东省绿色建筑协同创新中心,山东济南250101)摘要:研究新型催化材料是降低苯酚废水对环境污染,减少沸石、壳聚糖等传统吸附材料在苯酚处理中的投加量,降低实验成本的首要任务。文章以沸石/壳聚糖复合微
2、球为载体,通过离子交换法和液相沉积法负载上FeO的方式制备新型复合光催化剂,并用于催化非均相UV/Fenton法去除废水中的苯酚,阐明了复合催化剂投加量、不同苯酚溶液浓度、pH值、反应时间、HO:投加量、温度、光照强度、不同材料催化uv/Fenton等因素对磁性复合材料催化性能的影响。结果表明:在模拟苯酚废水浓度为20mg/L,pH=6时投加0.5g复合催化剂和0.3mLH:O:,在24w紫外灯照射下反应70min,苯酚的去除率可达到91.46%;在同等条件下MZC催化非均相UV/Fenton反应处理苯酚的光催化能力最强;磁性沸石壳聚糖作为光催
3、化剂有较好的光催化效果,苯酚去除率高。关键词:磁性;Fe,O;沸石一壳聚糖;光催化;苯酚废水中图分类号:X131.2文献标识码:AStudyontheheterogeneousphotocatalyticdegradationofphenolwithmagneticzeolite/chitosanmicrospheresWuDaoji,YuZhenyu,RenHuixue,eta1.(1.SchoolofMunicipalandEnvironmentalEngineering,ShandongJianzhuUniversity,Jinan250
4、101,China;2ShandongProvincialCollaborativeInnovationCenterofGreenBuilding,Jinan250101,China)Abstract:Thestudyofnewcatalyticmaterialsisthemostimportanttasktoreducetheenvironmentalpollutionofphenolwastewater,reducethedosageoftraditionaladsorptionmaterialssuchaszeoliteandchitos
5、aninthetreatmentofphenol,andreducetheexperimentalcost.Thezeolite—chitosancompositebeadsasthecarrier,throughtheionexchangemethodandliquidphasedepositionmethodmakeFe3O4loadonit,whichisaphotocatalystforremovingwaterphenolbyUV/Fentontest.Theexperimentinvestigatestheeffectsofcomp
6、ositecatalyst’Sdosage,differentphenolconcentration,pHvalue,reactiontime,H2O2quantity,temperature,lightstrength,differentmaterialscatalyzeUV/Fentonetc.Theexperimentsshowthatinconcentrationphenolwastewateris20mg/L,pH=6investmentplus0.5gcompositecatalyst,0.3mlH202,reaction70min
7、during24WUVlightirradiation,thephenolre—movalratecanreach91.46%.Underthesameconditions.MZCcatalyzedtheheterogeneousUV/Fentonreactiontotreatphenolwiththestrongestphotocatalyticability.Magneticzeolitechitosanasphotocatalysthasbetterphotocatalyticeffectandhighphenolremovalrate.
8、.Keywords:magnetic;Fe3O4;zeolite-chitosan;photocatalysis;phenolwastewater收稿
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