咔唑多孔有机材料的合成、气体吸附、及对I~-和Hg~(2+)的识别研究
详细信息 查看官网全文
- 英文论文题名：Carbazolic Porous Polymers with tetrahedral core for gas uptake and Optical Detection of Iodide and Mercury
- 论文作者：万宏静 ; 党琴琴 ; 张献明
- 英文论文作者：Hong-Jing Wan ; Qin-Qin Dang ; Xian-Ming Zhang ; School of Chemistry & Materials Science ; Shanxi Normal University
- 年：2016
- 作者机构：山西师范大学;
- 论文关键词：咔唑 ; 多孔聚合物 ; 气体吸附 ; 化学传感器 ; 选择性识别
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第三十二分会： 多孔功能材料
- 语种：中文
- 分类号：O626;O657.3
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第三十二分会 ; 多孔功能材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：288k
- 原文格式：D
- 会议级别：全国
摘要
我们以四(4-(9-H咔唑)苯基)甲烷为单体通过三氯化铁氧化偶联合成了咔唑多孔有机材料TPM-Cz。TPM-Cz的BET表面积为713m~2g~(-1),在273K时,CO_2吸附达96mg/g,并且对CO_2与N2有良好的吸附选择性(达到27.1)。此外TPM-Cz材料可对I-和Hg~(2+)进行可视化和荧光识别,加入I-使聚合物溶液的外观颜色由无色变为黄色,加入Hg~(2+)使TPM-Cz-I-溶液的颜色由黄色恢复到无色。荧光检测表明TPM-Cz对I-具有专一选择性,成功实现了对I-的turn-off光学识别响应。由于Hg~(2+)和I-强烈的相互结合作用,在随后的体系中加入Hg~(2+),实现了对Hg~(2+)专一灵敏的turn-on模式光学响应。因此TPM-Cz不仅在气体吸附分离方面有着很好的应用前景,同样有望作为Hg~(2+)和I-的荧光探针。
We report a facile synthesis of carbazole-based conjugated microporous polymer TPM-Cz via FeCl_3-promoted one-step oxidative coupling polymerization.It possesses a large BET surface area of 713 m~2g~(-1) and displays a high carbon dioxide uptake capacity(up to 96mg/g) at 273 K and 1 bar,with good selectivity towards CO_2 over N_2(up to 27.1).Furthermore,the ion recognition performance of TPM-Cz in THF was systematically studied by visual and fluorometric spectroscopy.TPM-Cz displays fluorescence "turn-off/turn-on" characteristics and colorimetric responses to I~-and Hg~(2+).A colorless TPM-Cz solution turns to yellow in the presence of iodide salts,which subsequently becomes colorless again on addition of Hg~(2+) salts that could be easily detected visually by the naked eye.Therefore,the polymer can be applied for gas storage and separation as well as optical probe of I~-and Hg~(2+)ions.
We report a facile synthesis of carbazole-based conjugated microporous polymer TPM-Cz via FeCl_3-promoted one-step oxidative coupling polymerization.It possesses a large BET surface area of 713 m~2g~(-1) and displays a high carbon dioxide uptake capacity(up to 96mg/g) at 273 K and 1 bar,with good selectivity towards CO_2 over N_2(up to 27.1).Furthermore,the ion recognition performance of TPM-Cz in THF was systematically studied by visual and fluorometric spectroscopy.TPM-Cz displays fluorescence "turn-off/turn-on" characteristics and colorimetric responses to I~-and Hg~(2+).A colorless TPM-Cz solution turns to yellow in the presence of iodide salts,which subsequently becomes colorless again on addition of Hg~(2+) salts that could be easily detected visually by the naked eye.Therefore,the polymer can be applied for gas storage and separation as well as optical probe of I~-and Hg~(2+)ions.
引文
[1]Hussain,S.;De,S.;Iyer,P.K.ACS Appl Mater Interfaces 2013,5(6):2234-40.
[2]Zhang,X.;Lu,J.;Zhang,J.Chemistry of Materials 2014,26(13):4023-4029.
[2]Zhang,X.;Lu,J.;Zhang,J.Chemistry of Materials 2014,26(13):4023-4029.