College of Chemistry and Chemical Engineering , Xinjiang Normal University , Urumqi 830054 , China.
Key Laboratory for the Synthesis and Application of Organic Functional Molecules, College of Chemistry and Chemical Engineering , Hubei University , Wuhan 430062 , P. R. China.
Inorg Chem. 2019 Sep 16;58(18):12011-12016. doi: 10.1021/acs.inorgchem.9b01040. Epub 2019 Sep 4.
The photocatalysis process with high selectivity is a very important research forefront for the semiconductor photocatalytic decomposition of organic pollutants. However, the rational design of efficient photocatalysts with high selectivity is still a challenge. Here, we present an open-framework chalcogenide (Heta)[InSnZnSe] (Heta = ethanolamine-H) (compound ) constructed from T4 supertetrahedral clusters [InSnZnSe] with visible-light-driven selectively photocatalytic degradation activity. Single-crystal XRD analysis shows that compound crystallizes in 4 (no. 142) space group, with = = 24.3462(2) Å, = 45.0062(9) Å, = 26676.9(7) Å, and = 8. Under visible-light irradiation, the selectively photocatalytic activities of were evaluated by photodegradation of two kinds of cationic dye molecules, i.e., methylene blue (MB) and rhodamine B (RhB), against two anionic dyes, methyl orange (MO) and Kermes red (KR), with different sizes. We show that the adsorption capability and charge-matching between organic dyes and the supertetrahedral cluster together with a suitable band structure make it an excellent and selective photocatalyst. This is the first example of an open-framework chalcogenide based on supertetrahedral T4 for the selectively semiconductor photocatalytic decomposition of organic dyes.
具有高选择性的光催化过程是半导体光催化有机污染物分解的一个非常重要的前沿研究领域。然而，设计具有高选择性的高效光催化剂仍然是一个挑战。在这里，我们提出了一种由 T4 超四面体簇[InSnZnSe]构建的具有可见光驱动选择性光催化降解活性的开放骨架硫属化物（Heta）[InSnZnSe]（Heta = 乙醇胺-H）（化合物）。单晶 XRD 分析表明，化合物在 4（No.142）空间群中结晶， = = 24.3462（2）Å， = 45.0062（9）Å， = 26676.9（7）Å， = 8。在可见光照射下，通过两种阳离子染料分子（即亚甲蓝（MB）和罗丹明 B（RhB））对两种阴离子染料（即甲基橙（MO）和胭脂红（KR））的光降解，评估了 的选择性光催化活性。我们表明，有机染料与超四面体簇之间的吸附能力和电荷匹配以及合适的能带结构使其成为一种优异的选择性光催化剂。这是首例基于超四面体 T4 的开放骨架硫属化物用于选择性半导体光催化分解有机染料的例子。
