纳米X-型沸石制备及其对含铅废水处理试验

摘要用水热合成法合成了纳米级X 型沸石分子筛,并采用透射电镜(TEM)和X 射线衍射(XRD)进行了表征。研究了纳米X 型沸石分子筛对Pb(Ⅱ)的吸附。考察了纳米X 沸石分子筛用量、pH值、吸附时间和温度对Pb(Ⅱ)的吸附去除的影响。结果表明,在50mL质量浓度为25mg L的含铅水样中,投加0 03g纳米X 型沸石分子筛用量在pH约为4 0,温度为20℃,吸附时间为5min,去除率达到99 52%。最大吸附量可达150mg g以上。采用1mol L的HCl能较完全洗脱纳米级X 型沸石分子筛所吸附的Pb(Ⅱ)。表明纳米级X 型沸石分子筛能循环使用,可应用于含铅废水的处理。

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	施平平
	刘金泉
	王银叶
	毕飞

关键词：水热合成法纳米X-型沸石分子筛

Abstract： Nano-meter X-zeolite has been prepared by hydrothermal synthesis, and it has been characterized by TEM and XRD.The adsorption of lead ion(Ⅱ) by nano-meter X-zeolite has been studied.The effects of the dosage of nano-meter X-zeolite,pH value, time of contaction and the temperature of wastewater on the absorption of Pb(Ⅱ)by nano-meter X-zeolite are analyzed.The results show that the removal ratio was 99.52% in 50 mL wastewater with the lead ion(Ⅱ) concentration of 25 mg/L when the pH value was keeping at 4,stirring for five minutes at 20℃ by adding 0.03 g the nano-meter X-zeolite.The max absorption was over 150 mg/g.Pb(Ⅱ) was absolutely eluted by 1 mol/L HCl solution.The absorption percentage of the recovered nano-meter X-zeolite remained high.The method can be used to treat Pb(Ⅱ) in water.

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Received 2005-05-15; published 2005-05-15

引用本文:

施平平,刘金泉,王银叶,毕飞.纳米X-型沸石制备及其对含铅废水处理试验[J]. 化学工业与工程, 2005,22(3): 182-186

SHI Ping-ping~1,LIU Jin-quan~2,WANG Yin-ye~1,BI Fei~3 .Preparation of Nano-Meter X-Zeolite and Its Application in Lead Ion(Ⅱ)Treatment[J]. Chemcial Industry and Engineering, 2005,22(3): 182-186

[1]	周文敏,傅德黔,孙宗光.水中优先控制污染物黑名单[J].中国环境监测,1990,6(4):1-3.
[2]	徐如人,庞文琴,屠昆岗,等.沸石分子筛的结构与合成[M].吉林:吉林大学出版社,1988.
[3]	孙家寿,刘　扇,鲍世聪,等.天然沸石吸附剂除铅性能[J].武汉化工学院学报,1998,20(3):32-36.
[4]	宋和付,夏畅斌,何湘柱,等.天然沸石对Pb(Ⅱ)和Ni(Ⅱ)离子的吸附作用研究[J].矿产与地质,2000,78(4):276-278.
[5]	李虎杰,田　煦,易发成.活化沸石对Pb2+的吸附性能研究[J].非金属矿,2001,24(2):49-51.
[6]	李方文,魏先勋,李彩亭,等.煅烧碱溶法制粉煤灰类沸石吸附及其在处理合铅废水中的应用[J].环境污染治理技术与设备,2002,3(10):61-64.
[7]	商泽岩明,山中宏,新井信正,等.化学处理天然沸石对铅的吸附特性[J].日本化学会志,1991,(12):1605-1611.
[8]	YUANG,SEYAMAH,SOMAM.Adsorptionofsomeheavymetalsbynaturezeolites:XPSandbatchstudies[J].　　　JournalofEnvironmentalScienceandHealth,PartⅠ,1999,34(3):625-648.
[9]	BRIGATTIMARIAFRANCA,FRANCHINIGIANCARLO,FRIGIERIPAOLA,etal.Treatmentofindustrialwastewaterusingzeolititeandsepiolite,naturalmicroporousmaterials[J].CanadianJournalofChemicalEngineering,1999,77(1):163-168.
[10]	OUKIKS,KAVANNAGHM.Performanceofnaturalzeolitesforthetreatmentofmixedmetal contaminatedeffluents[J].WasteManagement＆Research,1997,15(4):383-394.
[11]	OUKIKS,KAVANNAGHM.Treatmentofmetalscontaminatedwastewatersbyuseofnaturalzeolites[J].WaterScienceandTechnology,1999,39(10):115-122.
[12]	BAILEYSUSANE,OLINTRUDYJ,BRICKAR.Reviewofpotentiallylow costsorbentsforheavymetals[J].WaterResearch,1999,33(11):2469-2479.
[13]	InternationalCentreforDiffractionData.PowderDiffractionFile(set38)[M].PrintedinPhiladelphia,PA:InternationalCentreforDiffractionData,1988.