一种新型三维杂多蓝型类光芬顿催化剂及其去除染料污染的能力。
A novel 3D heteropoly blue type photo-Fenton-like catalyst and its ability to remove dye pollution.
机构信息
College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China; College of Science, Nanjing Forestry University, Nanjing, 210037, China; Institute Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China; College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China.
College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing, 210093, China; College of Science, Nanjing Forestry University, Nanjing, 210037, China; Institute Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, 130024, China; College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China.
出版信息
Chemosphere. 2018 Apr;197:241-250. doi: 10.1016/j.chemosphere.2018.01.053. Epub 2018 Jan 12.
A environment-friendly 3D inorganic heteropoly blue (HPB) BaNa [HPWWO]·26HO was directly synthesized by hydrothermal method and characterized by means of ICP, IR, XPS, X-ray single crystal and X-ray powder diffraction. It was an efficient heterogeneous photo-Fenton-like catalyst to degrade anionic dye methyl orange under visible light irradiation. It removed cationic dyes methylene blue in neutral environment and rhodamine B in acidic condition via flocculation. The removal efficiency of methylene blue and rhodamine B by flocculation was more than 95%. Moreover, it could degrade methyl orange and flocculate rhodamine B at the same time. For MO and MO-RhB solutions, the degradation rates of MO in 60 min were 85.5% and 49.1%, respectively. Furthermore, the possible pathways for the production of active species in the MO degradation reaction were discussed. This is the first HPB constructed with 4e-reduced phosphotungstate, Ba and Na ions, having the properties of photo-Fenton-like catalyst and flocculant.
一种环境友好型的 3D 无机杂多蓝（HPB）BaNa[HPWWO]·26H2O 是通过水热法直接合成的，并通过 ICP、IR、XPS、X 射线单晶和 X 射线粉末衍射进行了表征。它是一种在可见光照射下有效降解阴离子染料甲基橙的非均相类 Fenton 光催化剂。它可以在中性环境下通过絮凝去除阳离子染料亚甲基蓝，在酸性条件下通过絮凝去除罗丹明 B。亚甲基蓝和罗丹明 B 的絮凝去除率均超过 95%。此外，它还可以同时降解甲基橙和絮凝罗丹明 B。对于 MO 和 MO-RhB 溶液，在 60 分钟内 MO 的降解率分别为 85.5%和 49.1%。此外，还讨论了 MO 降解反应中活性物质生成的可能途径。这是首例由 4e-还原的磷钨酸盐、Ba 和 Na 离子构建的 HPB，具有类 Fenton 光催化剂和絮凝剂的性质。
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