功能材料
功能材料
공능재료
JOURNAL OF FUNCTIONAL MATERIALS
2014年
z1期
107-110,116
,共5页
李增和%王振翠%李歌%王伟
李增和%王振翠%李歌%王偉
리증화%왕진취%리가%왕위
发光材料%稀土配合物%Eu%MCM-41%改性
髮光材料%稀土配閤物%Eu%MCM-41%改性
발광재료%희토배합물%Eu%MCM-41%개성
luminescent materials%lanthanide complexes%Eu%MCM-41%modified
采用水热法合成改性 MCM-41介孔分子筛;采用液相沉淀法合成了以磺基水杨酸及邻菲罗啉作为双配体的铕的配合物,找到其发光效果最好的配比,即n(Eu)∶n(SSA)∶n(phen)=1∶2∶1,并将发光效果最好的稀土配合物组装到改性后的 MCM-41中,合成了稀土配合物(Eu)/改性 MCM-41杂化发光材料,采用紫外光谱分析、元素分析、小角 XRD、红外光谱、荧光光谱和 TGA 对其结构和荧光性质进行了研究。结果表明,组装体具有 MCM-41典型结构并且在组装之后仍保留了 MCM-41的孔道结构;其荧光光谱具有Eu3+的特征荧光发射,发光强度大于纯配合物。改性 MCM-41后组装稀土配合物的发光效果更佳,热稳定性更好,更有利于实际应用。
採用水熱法閤成改性 MCM-41介孔分子篩;採用液相沉澱法閤成瞭以磺基水楊痠及鄰菲囉啉作為雙配體的銪的配閤物,找到其髮光效果最好的配比,即n(Eu)∶n(SSA)∶n(phen)=1∶2∶1,併將髮光效果最好的稀土配閤物組裝到改性後的 MCM-41中,閤成瞭稀土配閤物(Eu)/改性 MCM-41雜化髮光材料,採用紫外光譜分析、元素分析、小角 XRD、紅外光譜、熒光光譜和 TGA 對其結構和熒光性質進行瞭研究。結果錶明,組裝體具有 MCM-41典型結構併且在組裝之後仍保留瞭 MCM-41的孔道結構;其熒光光譜具有Eu3+的特徵熒光髮射,髮光彊度大于純配閤物。改性 MCM-41後組裝稀土配閤物的髮光效果更佳,熱穩定性更好,更有利于實際應用。
채용수열법합성개성 MCM-41개공분자사;채용액상침정법합성료이광기수양산급린비라람작위쌍배체적유적배합물,조도기발광효과최호적배비,즉n(Eu)∶n(SSA)∶n(phen)=1∶2∶1,병장발광효과최호적희토배합물조장도개성후적 MCM-41중,합성료희토배합물(Eu)/개성 MCM-41잡화발광재료,채용자외광보분석、원소분석、소각 XRD、홍외광보、형광광보화 TGA 대기결구화형광성질진행료연구。결과표명,조장체구유 MCM-41전형결구병차재조장지후잉보류료 MCM-41적공도결구;기형광광보구유Eu3+적특정형광발사,발광강도대우순배합물。개성 MCM-41후조장희토배합물적발광효과경가,열은정성경호,경유리우실제응용。
Modified MCM-41 mesoporous molecular sieves were synthesized by hydrothermal method.Lanthanide complexes Eu-SSA-phen was synthesized by liquid precipitation method,the best ratio of sulfosalicylic acid and o-phenanthroline these two ligands was found,n(Eu)∶n(SSA)∶n(phen)=1∶2∶1 .Finally,lanthanide lumi-nescent complexes with the best glowing effect was assembled into modified MCM-41,and then synthesized lan-thanide complexes (Eu)/modified MCM-41 hybrid materials which were then characterized by SAXRD,IR spectra,fluorescent spectroscopy,thermal gravimetric analysis,for study the structure and fluorescence prop-erties.It showed that the hybrid materials had typical structure of MCM-41 and retained the same pore structure as MCM-41 after the assembly processing.The fluorescence spectra presented characteristic fluorescence-emis-sion of Eu3+.Compared with lanthanide complexes,the higher emission intensity and better thermal stability was observed,which was good for practical application.