基于镉的MOF/染料复合材料的制备及荧光性能研究  

Preparation and Luminescence Properties of Cd-based MOF/Dye Composites

作　　者：刘明珠 牛传文 张欢欢[3] 邢彦军[1,2] LIU Mingzhu;NIU Chuanwen;ZHANG Huanhuan;XING Yanjun(Key Laboratory of Science and Technology of Eco-Textiles,Ministry of Education,Donghua University,Shanghai 201620,China;College of Chemistry,Chemical Engineering and Biotechnology,Donghua University,Shanghai 201620,China;Shanghai Institute of Quality Inspection and Technical Research,Shanghai 200030,China)

机构地区：[1]东华大学生态纺织教育部重点实验室,上海201620 [2]东华大学化学化工与生物工程学院,上海201620 [3]上海市质量监督检验技术研究院,上海200030

出　　处：《无机材料学报》2020年第10期1123-1129,共7页Journal of Inorganic Materials

基　　金：国家科技支撑计划项目(ID2012BAK30B03);中央高校基本科研业务费专项资金(2232013A3-05)。

摘　　要：采用常温原位一步法,以Cd为金属离子,间苯二甲酸和苯并咪唑为配体制备Cd基发光金属有机骨架(MOF)材料,然后分别与钙黄绿素(CA)、罗丹明B(RhB)、结晶紫(CV)组装得到一系列荧光可调的MOF/CA、MOF/CA+RhB、MOF/CA+CV和MOF/CA+RhB+CV四种复合材料。探讨了染料初始添加量、比例对MOF/染料复合材料荧光性能的影响。结果表明,随CA添加量的增加,四种复合材料中CA特征荧光强度先增后减,且呈现红移。添加量不变的RhB或CV荧光峰位置虽保持不变,但荧光强度随CA量的增加而增强,表明MOF和染料间存在能量转移。以Cd-MOF为平台,通过调控三种染料摩尔配比制备得到具有白荧光的MOF/CA3+RhB+CV复合材料,其色度坐标为(0.335,0.321),与理论白光坐标(0.333,0.333)接近。A series of tunable-luminescence MOF/CA,MOF/CA+RhB,MOF/CA+CV and MOF/CA+RhB+CV composite light-emitting materials were prepared by combining calcein(CA),rhodamine B(RhB),crystal violet(CV)with MOF using Cd as metal ion,isophthalic acid and benzimidazole as ligand by the one-step method at room temperature.The influence of the initial addition amount and ratio of dyes on the fluorescence properties of MOF/Dye composites was discussed.With the increase of CA amount,the characteristic fluorescence emission intensity of CA increased firstly and then decreased accompanied with red-shift.Although the position of the characteristic fluorescence emission wavelength of RhB or CV remained unchanged due to the unchanged addition amount,the characteristic fluorescence emission intensity of CA changed like CA.MOF/CA3+RhB+CV composite with white light emission was further prepared by adjusting the molar ratio of dyes using MOF as a platform.Its chromaticity coordinate(0.335,0.321)was close to the ideal white light coordinate(0.333,0.333).

关 键 词：MOF 染料 复合材料 荧光 白光 

分 类 号：TQ174[化学工程—陶瓷工业]