highly luminescent, which makes them excellent chemical sensors for detecting Cu2+ and 4-NP (4-nitrophenol) with high selectivity and sensitivity in aqueous media such as deionized water, tap water, and river water based on distinct quenching effects. To the best of our knowledge, their detection limits are lower than those documented so far. In addition, the quenching efficiency of 4-NP was retained
考虑到人类健康和环境安全,开发用于检测重
金属离子和硝基
芳烃的高度稳定的稀土发光传感器具有挑战性。为此,开发了两种
化学结构为[Ln(HL)]·3
DMF·3H 2 O} n (Ln = Eu, LZG-Eu和 Ln = Tb, LZG-Tb )的
水稳定性Ln-MOFs使用中心苯基主链在对位被 2,6-
吡啶二
甲酸双取代的多齿
配体 ( H 4 L ) 进行溶剂热法, H 4 L = 1,4-bis(2',2'',6' ,6''-四羧基-1,4':4,4''-
吡啶基)苯。单晶分析表明,两种新型 Ln-MOF 具有 4,4,4 连接的网络,具有前所未有的拓扑符号 4 2 ·6·8 3 } 2 4 2 ·6 2 ·8 2 }4 2 ·8 4 } 并且包含两种一维通道。粉末 X 射线衍射以及发光测定结果表明,它们在 pH 值范围为 4-11 的严酷酸性和碱性条件下仍能保持结晶度和结构完整性。 此外