张赛本科毕业论文

《张赛本科毕业论文》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、论文题目：导向剂对煤砰石合成超微分子筛的影响的研究专业：化学与化工本科生：张赛指导老师：杨建利（签名）（签名）摘要工业废水处理是口前废水处理的难点之一。废水屮含有大量的重金属离子，对人体的危害巨大。超微分子筛是目前分子筛领域的主要发展趋势之一。由于晶粒尺寸极小，外表而积和表而原子数增大、表而能增高、表而酸量增大、外露孔口增多、孔道缩短、孔容及孔隙率增大，其对金屈离了的吸附能力也将增强。探讨超微分了筛吸附能力和最优化吸附条件，将是目前分子筛应用于工业废水处理领域的一个重要研究课题。木研究采用水热合成法制备超微分子筛，使用XRD、红外光谱扫描和扫描电镜进行分析，通过吸附试验表明超微

2、分子筛具有更强的吸附性能。并且确定超微5A分子筛的最优化吸附条件为：常温25°C、pH=lk最佳吸附时间大于lh。对锯离子的吸附试验表明,超微5A分了筛对馅离了的最大吸附量为0.037mg/mg；拟合结果显示，超微5A分了筛对馅离子的吸附满足Langmuir吸附等温式，其吸附速率满足二级吸附速率方程。关键词：超微5A分子筛；重金属离子；珞离子；吸附研究类型：应用基础Subject:TheStudyofAdsorptionofHeavymetalionsonUltramicro5AmolecularsievingSpecialty:ChemicalEngineeringandTe

3、chnologyName:ZhangSai(Signature)Instructor:YangJianli(Signature)ABSTRACTIndustrialwastewatertreatmentisoneofthedifficultiesofwastewatertreatment.Wastewatercontainsalotofheavymetalions，whichisharmfulforhuman.Ultra-molecularsievingisamaintrendinthedevelopmentofmolecularsievingfieldatpresent.Be

4、causethecrystallinegrainsizeisverytiny,itsoutersurfaceareaandtheatomnumberofsurfaceincreasedsharply,surfaceenergyaccreted,surfaceacidamountaugmented,exposedostioleaugmented,apertureshortened,porevolumeandporerateimproved,theadsorptioncapacityformetalionswillalsochange・Itisanimportantresearch

5、topicinthefieldofwastewatertreatmentindustrytoinvestigatetheadsorptionstrengthandtheoptimalconditionsofultramicromolecularsieving.Thisstudyadoptssugarandmicrowavemethodtoprepareultramicro5Amolecularsieving.UsingXRD,IRspectraandSEManalysis,theresultsshowthatbothmethodscanbepreparedbyultramicr

6、o5Amolecularsieving・Throughadsorptionexperimentsshowthatultramicro5Amolecularsievinghasastrongeradsorption.Theoptimumadsorptionconditionswere:temperature25°CandpH=11,morethanlh.AdsorptiontestforCrshowedthatthemaximumadsorptionofchromiumiononutramicro5Amolecularsieveis0.373mg/mg.Thefittingres

7、ultsshowedthatadsorptionofchromiumiononutramicro5AmolecularsievemeetstheLangmuirisotherm,andtheadsorptionratemeetsthe2Gradeadsorptionrateequation.Keywords:Ultramicro5Amolecularsieving,Heavymetalions,03,AdsorptionThesis:AppliedBasis1绪论1l.i巧丨言11.2分了筛