| 两个紫精-多酸杂化材料的合成、结构及其光致变色和光催化性质 |
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| 引用本文： | 刘慧荣,徐昊,朱敦如,张俊勇,宫春华,谢景力. 两个紫精-多酸杂化材料的合成、结构及其光致变色和光催化性质[J]. 无机化学学报, 2024, 40(7): 1368-1376 |
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| 作者姓名： | 刘慧荣 徐昊 朱敦如 张俊勇 宫春华 谢景力 |
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| 作者单位： | 南京工业大学化工学院, 南京 211816;嘉兴大学生物与化学工程学院, 嘉兴 314001;嘉兴南湖学院新材料工程学院, 嘉兴 314001 |
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| 基金项目： | 国家自然科学基金(No.21771088)和浙江省自然科学基金(No.LY20B010005)资助。 |
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| 摘 要： | 分别利用1，1''-二甲基-4，4''-联吡啶(甲基紫精，MV)二氯化物和1，1''-二乙基-4，4''-联吡啶(乙基紫精，EV)二溴化物的阳离子作为电子受体，富电子的杂多酸阴离子作为电子给体，合成了 2 个新的紫精-多酸杂化晶态材料：(MV)2[HPWⅤ2WⅥ10O40]·2H2O (1)和(EV)2[Mo8O26] (2)，并解析了其单晶结构，在化合物 1和 2中，阴、阳离子间均存在氢键相互作用。2具有光致变色性能，光响应时间为1 min以内。通过固体漫反射、电子顺磁共振和理论计算等手段，探究了2的光致变色机理。1和2对光降解有机染料(亚甲蓝、盐酸副玫瑰苯胺和罗丹明6G)均具有一定的催化性能。
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| 关 键 词： | 紫精 多酸 光致变色 光催化 |
| 收稿时间： | 2024-02-27 |
| 修稿时间： | 2024-05-27 |
Syntheses, structures, photochromic and photocatalytic properties of two viologen-polyoxometalate hybrid materials |
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| LIU Huirong,XU Hao,ZHU Dunru,ZHANG Junyong,GONG Chunhu,XIE Jingli. Syntheses, structures, photochromic and photocatalytic properties of two viologen-polyoxometalate hybrid materials[J]. Chinese Journal of Inorganic Chemistry, 2024, 40(7): 1368-1376 |
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| Authors: | LIU Huirong XU Hao ZHU Dunru ZHANG Junyong GONG Chunhu XIE Jingli |
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| Affiliation: | College of Chemical Engineering, Nanjing Tech University, Nanjing 211816, China;College of Biological, Chemical Sciences, and Engineering, Jiaxing University, Jiaxing, Zhejiang 314001, China;School of Advanced Materials and Engineering, Jiaxing Nanhu University, Jiaxing, Zhejiang 314001, China |
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| Abstract: | Two new viologen-polyoxometalate hybrid crystalline materials: (MV)2[HPWⅤ2WⅥ10O40] ·2H2O (1) and (EV)2[Mo8O26] (2) have been synthesized by using the cations of 1,1''-dimethyl-4,4''-bipyridinium dichloride (methyl viologen, MV) and 1,1''-diethyl-4,4''-bipyridinium dibromide (ethyl viologen, EV) as the electron acceptors, and the electron-rich polyoxometalate anions as the electron donors. The structures of compounds 1 and 2 have been determined by single-crystal X-ray crystallography. Hydrogen bond interactions exist between the cations and the anions in 1 and 2. Interestingly, 2 has a photochromic performance with a light response time within 1 min. The photochromic mechanism of compound 2 has been investigated by solid-state diffuse reflection, electron paramagnetic resonance and theoretical calculation. 1 and 2 show good catalytic performance in the photocatalytic degradation of several organic dyes (methylene blue, pararosaniline hydrochloride and rhodamine 6G). |
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| Keywords: | viologen polyoxometalate photochromism photocatalysis |
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