Zinc tungstate: a review on its application as heterogeneous photocatalyst
Zinc tungstate: a review on its application as heterogeneous photocatalyst
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钨酸锌：其作为多相光催化剂的应用综述
DOI：
10.1590/0366-69132022683873265
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发表时间：
2022
期刊：
影响因子：
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通讯作者：
I. Santos
中科院分区：
文献类型：
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作者：
O. B. Macêdo;A. M. Oliveira;I. Santos
znwo4以单斜斜黑钨矿状结构结晶，研究了其在非均相光催化降解、氧化和还原各种污染物方面的应用。这种类型的钨酸盐在紫外光和可见光照射下都是一种高效的光催化剂，当znwo4与其他半导体形成异质结构或掺杂不同离子时，在阳光照射下具有很高的效率。例如，znwo4效率的优化是通过其与不同半导体的异质结来实现的，如ZnO，这是最常用的材料之一，但也与其他化合物如BiOBr， fewo4, tio2, wo3， bi2wo6等。此外，将znwo4与Ti 4+、Bi 3+、Ce 3+、Co 2+金属离子或与非金属（F -和n3 -）掺杂也可以提高材料的光催化产率。研究了氧化锆基催化剂对无机和有机分子的光催化性能。然而，在各种靶分子中，在涉及znwo4存在下光催化的研究中，亚甲基蓝、甲基橙和罗丹明B染料等有机污染物研究最多。在本文中，我们总结了重要的文献工作，重点介绍了znwo4光催化的进展。
ZnWO 4 crystallizes in a monoclinic wolframite-like structure, which has been studied for applications in heterogeneous photocatalysis for degradation, oxidation, and reduction of various contaminants. This type of tungstate has proved to be an efficient photocatalyst under both ultraviolet and visible light irradiation and, when ZnWO 4 forms a heterostructure with other semiconductors or when it is doped with different ions, it has a great efficiency under sunlight irradiation. For instance, the optimization of ZnWO 4 efficiency has been attained by its heterojunction with different semiconductors such as ZnO, one of the most used materials for this purpose, but also with other compounds such as BiOBr, FeWO 4 , TiO 2 , WO 3 , Bi 2 WO 6 , among others. In addition, doping ZnWO 4 with the Ti 4+ , Bi 3+ , Ce 3+ , and Co 2+ metal ions or with nonmetals (F - and N 3- ) can also increase the photocatalytic yield of the material. The photocatalytic properties of ZnWO 4 -based catalysts have been explored toward inorganic and organic molecules. However, among the variety of target molecules, organic pollutants such as methylene blue, methyl orange, and rhodamine B dyes appear as the most investigated in studies involving photocatalysis in the presence of ZnWO 4 . In our review, we summarize important literature works, highlighting the advancement in photocatalysis using ZnWO 4 .
DOI：
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发表时间：
2011
期刊：
影响因子：
--
作者：
Sumimoto H;Minakami R;Miyano K
通讯作者：
Miyano K