BUT-201 can rapidly adsorb cationic dyes with a smaller size such as Methylene Blue (MB) and Acriflavine Hydrochloride (AH) by substitution of guest (CH3)2NH2+, but has no adsorption towards the cationic dyes with a lager size such as Methylene Violet (MV), the anionic dyes like C. I. Acid Yellow 1 (AY1) and neutral dyes like C. I. Solvent Yellow 7 (SY7), respectively. The results show that the adsorption
一种新型的多孔阴离子
金属-有机骨架,(Me 2 NH 2)2 [Zn 2 L 1.5 bpy]·2
DMF(BUT-201 ; H 4 L = 4,8- diulfonaphthalene -2,6-dicarboxy acid; bpy = 4磺化
羧酸配体与Zn(NO 3)2 ·6H 2 O与4,4-联
吡啶反应合成了具有柱状双层结构的(4-联
吡啶;
DMF = N,N-二甲基甲酰胺)。共
配体。发现BUT-201可以通过取代客体(CH 3)快速吸附较小尺寸的
阳离子染料,例如
亚甲基蓝(MB)和
盐酸阿克黄素(AH)。2 NH 2 +,但对较大尺寸的
阳离子染料(例如亚
甲基紫(MV)),阴离子
染料(例如CI Acid Yellow 1(AY1))和
中性染料(例如CI Solvent Yellow 7(SY7))没有吸附。结果表明,BUT-201的吸附行为不仅与电荷有关,而且与
染料的大小/形状有关。此外,吸附的
染料可以在LiNO