Diffusion-Controlled Detection of Trinitrotoluene: Interior Nanoporous Structure and Low Highest Occupied Molecular Orbital Level of Building Blocks Enhance Selectivity and Sensitivity
作者:Yanke Che、Dustin E. Gross、Helin Huang、Dongjiang Yang、Xiaomei Yang、Emre Discekici、Zheng Xue、Huijun Zhao、Jeffrey S. Moore、Ling Zang
DOI:10.1021/ja300306e
日期:2012.3.14
trinitrotoluene (TNT) still remains a big challenge for fluorescence-based sensors. Here we report the selectivedetection of TNTvapor using the nanoporous fibers fabricated by self-assembly of carbazole-based macrocyclic molecules. The nanoporosity allows for time-dependent diffusion of TNT molecules inside the material, resulting in further fluorescence quenching of the material after removal from the TNT vapor