Facile synthesis of a Ag(I)-doped coordination polymer with enhanced catalytic performance in the photodegradation of azo dyes in water
Facile synthesis of a Ag(I)-doped coordination polymer with enhanced catalytic performance in the photodegradation of azo dyes in water
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轻松合成Ag(I)掺杂配位聚合物，在水中偶氮染料的光降解中具有增强的催化性能
DOI：
10.1039/c5ta00302d
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Jian-Ping Lang
中科院分区：
文献类型：
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作者：
Fan Wang;Fu-Ling Li;Miao-Miao Xu;Hong Yu;Jian-Guo Zhang;Hai-Tao Xia;Jian-Ping Lang
在室温下，预先形成的化合物{[Pb（Tab）2]2（PF 6）4}n（1）（TabH = 4-（三甲基铵基）苯乙撑）与两当量的三氟乙酸在室温下进行固相反应。1，2-二（4-吡啶基）乙烯（bpe）的合成定量地产生了独特的二维配位聚合物{[Pb（Tab）2（bpe）]2（PF 6）4}n（2）。通过将配合物2浸入AgNO 3水溶液中，可以很容易地制备出Ag（I）掺杂的配位聚合物{[Pb（Tab）2（bpe）]2（PF 6）4·1.64AgNO3}n（2a）。与前体1和前体2相比，2a在紫外光照射下对12种偶氮染料的光催化降解活性有很大提高，对水中偶氮染料的降解具有很好的适应性。可以预见，在这项工作中报告的“银（I）掺杂”的合成策略可能适用于其他配位聚合物系统含有硫醇配体的各种金属离子掺杂的多维配位聚合物的制备具有新的拓扑结构和更好的催化性能的光分解偶氮染料在工业废水中。
Ambient temperature solid state reaction of a preformed compound {[Pb(Tab)2]2(PF6)4}n (1) (TabH = 4-(trimethylammonio)benzenethiol) with two equiv. of 1,2-bis(4-pyridyl)ethylene (bpe) quantitatively produces a unique two-dimensional coordination polymer {[Pb(Tab)2(bpe)]2(PF6)4}n (2). The Ag(I)-doped coordination polymer {[Pb(Tab)2(bpe)]2(PF6)4·1.64AgNO3}n (2a) is readily prepared by immersing 2 into AgNO3 aqueous solution. Compared with its two precursors 1 and 2, 2a exhibits greatly enhanced catalytic activity towards the photodegradation of a family of 12 azo dyes within a short period of time under UV light irradiation and excellent adaptability on the elimination of azo dyes in water. It is anticipated that the ‘Ag(I)-doping’ synthetic strategy reported in this work may be applicable to other coordination polymer systems containing thiolate ligands for the preparation of various metal ion-doped multidimensional coordination polymers with new topological structures and better catalytic performances in the photodecomposition of azo dyes in industrial wastewater.