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Construction of Novel Coordination Polymers Based on Pyrazole Carboxylic Acid and Doping for Enhancing the Photocatalytic Property Under Visible Light
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2022-04-19 , DOI: 10.1021/acs.cgd.1c01369 Shufan Wang 1 , Jun Chen 1 , Weizhi Kou 1 , Lijun Qiu 1 , Shipeng Luo 1 , Xin Wang 1 , Lianshe Fu 2 , Tinghai Yang 1
Crystal Growth & Design ( IF 3.2 ) Pub Date : 2022-04-19 , DOI: 10.1021/acs.cgd.1c01369 Shufan Wang 1 , Jun Chen 1 , Weizhi Kou 1 , Lijun Qiu 1 , Shipeng Luo 1 , Xin Wang 1 , Lianshe Fu 2 , Tinghai Yang 1
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Visible-light-driven photocatalysis is a promising approach for the degradation of organic pollutants due to its effective utilization of sunlight resources. Therefore, the design and synthesis of novel coordination polymers (CPs) as photocatalysts and the regulation of photocatalytic performance have attracted considerable attention. Herein, we designed and synthesized a light absorption ligand 1-(carboxymethyl)-1H-pyrazole-4-carboxylic acid (H2cmpc) and prepared six novel CPs with different 3d transition metal ions, named [Mn3(cmpc)2(μ3-OH)2(H2O)4]·2H2O (1), [M(cmpc)(H2O)3] (M = Co (2), Ni (3), Co0.4Ni0.6 (4)), and [M(Hcmpc)2(H2O)4] (M = Co (5), Ni (6)). The H2cmpc organic linker has three kinds of coordination bridging modes in the six CPs. CP 1 presents a layered structure with a channel. CPs 2–4 are isostructural and show a one-dimensional chain structure. CPs 5 and 6 are isostructural and exhibit a mononuclear structure with six-coordinated metal ions, which are connected into a 3D supramolecular structure constructed through hydrogen bonds. Photocatalytic degradation experiments of CPs 2–4 were conducted, indicating that CPs 2–4 show excellent photocatalytic performance under visible light. Furthermore, Co/Ni codoping can enhance the photocatalytic performance compared with single metal CPs. The photocatalytic degradation mechanisms of CPs 2–4 have been investigated.
中文翻译：
基于吡唑羧酸的新型配位聚合物的构建和掺杂增强可见光下的光催化性能
可见光驱动的光催化是一种很有前途的有机污染物降解方法，因为它可以有效利用阳光资源。因此，作为光催化剂的新型配位聚合物（CPs）的设计和合成以及光催化性能的调控引起了人们的广泛关注。在此，我们设计并合成了一种光吸收配体1-(羧甲基)-1 H-吡唑-4-羧酸(H 2 cmpc)，并制备了六种具有不同3d过渡金属离子的新型CP，命名为[Mn 3 (cmpc) 2 (μ 3 -OH) 2 (H 2 O) 4 ]·2H 2 O ( 1 ), [M(cmpc)(H2 O) 3 ] (M = Co ( 2 ), Ni ( 3 ), Co 0.4 Ni 0.6 ( 4 )), 和 [M(Hcmpc) 2 (H 2 O) 4 ] (M = Co ( 5 ), Ni ( 6 ))。H 2 cmpc 有机接头在六个CP中具有三种配位桥接模式。CP 1呈现出带有通道的分层结构。CP 2 – 4是同构的并显示一维链结构。CP 5和6是同构的，具有六配位金属离子的单核结构，它们通过氢键连接成一个3D超分子结构。对CPs 2-4进行了光催化降解实验，表明CPs 2-4在可见光下表现出优异的光催化性能。此外，与单金属CPs相比，Co/Ni共掺杂可以提高光催化性能。CPs 2 – 4的光催化降解机制已被研究。
更新日期：2022-04-19
中文翻译：
基于吡唑羧酸的新型配位聚合物的构建和掺杂增强可见光下的光催化性能
可见光驱动的光催化是一种很有前途的有机污染物降解方法，因为它可以有效利用阳光资源。因此，作为光催化剂的新型配位聚合物（CPs）的设计和合成以及光催化性能的调控引起了人们的广泛关注。在此，我们设计并合成了一种光吸收配体1-(羧甲基)-1 H-吡唑-4-羧酸(H 2 cmpc)，并制备了六种具有不同3d过渡金属离子的新型CP，命名为[Mn 3 (cmpc) 2 (μ 3 -OH) 2 (H 2 O) 4 ]·2H 2 O ( 1 ), [M(cmpc)(H2 O) 3 ] (M = Co ( 2 ), Ni ( 3 ), Co 0.4 Ni 0.6 ( 4 )), 和 [M(Hcmpc) 2 (H 2 O) 4 ] (M = Co ( 5 ), Ni ( 6 ))。H 2 cmpc 有机接头在六个CP中具有三种配位桥接模式。CP 1呈现出带有通道的分层结构。CP 2 – 4是同构的并显示一维链结构。CP 5和6是同构的，具有六配位金属离子的单核结构，它们通过氢键连接成一个3D超分子结构。对CPs 2-4进行了光催化降解实验，表明CPs 2-4在可见光下表现出优异的光催化性能。此外，与单金属CPs相比，Co/Ni共掺杂可以提高光催化性能。CPs 2 – 4的光催化降解机制已被研究。
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