Tabatabaeinejad Seyed Milad, Zinatloo-Ajabshir Sahar, Amiri Omid, Salavati-Niasari Masoud
Institute of Nano Science and Nano Technology, University of Kashan P. O. Box. 87317-51167 Kashan Iran
Department of Chemical Engineering, University of Bonab P.O. Box. 5551761167 Bonab Iran
RSC Adv. 2021 Dec 16;11(63):40100-40111. doi: 10.1039/d1ra06101a. eCollection 2021 Dec 13.
Designing and fabricating an efficient photocatalytic compound with an appropriate band gap to eliminate toxic contaminants is necessary to remediate the environment. This article presents the development of a new type of nanostructure, LuCuO-LuO nanocomposites to photo-catalytically degrade different kinds of toxic pollutants under sunlight. The oxide nanocomposites were fabricated a quick and eco-friendly approach. In order to fabricate oxide nanostructures with appropriate features in terms of morphology and particle size, the effects of the kind of green reactant and its quantity were examined. Amylum was an appropriate and green reactant for the efficient synthesis of LuCuO-LuO nanobundles with the most organized morphology. The features of LuCuO-based nanostructures were carefully investigated utilizing multiple characterization methods. Then, the catalytic role of the fabricated nanobundles was evaluated for the removal of various kinds of toxic contaminants. The effects of the quantity of photocatalytic nanostructure, the concentration of the contaminant compound, and the type of light source in the catalytic degradation process were screened. The findings of this research demonstrated that utilizing 0.05 g of LuCuO-LuO nanobundles, 98.5% of the contaminant with a concentration of 10 ppm can be degraded in 2 h under ultraviolet light irradiation. The experimental results also certified that, during the photocatalytic pathway, superoxide radicals play a meaningful role in the elimination of toxic pollutants. To our knowledge, this is the first report of the fabrication of LuCuO-LuO nanocomposite through a facile and eco-friendly approach and its photocatalytic efficiency.
设计并制造一种具有合适带隙的高效光催化化合物以消除有毒污染物对于环境修复至关重要。本文介绍了一种新型纳米结构——LuCuO-LuO纳米复合材料的开发,该材料可在阳光下光催化降解各种有毒污染物。这些氧化物纳米复合材料是通过一种快速且环保的方法制备的。为了制备出在形态和粒径方面具有合适特征的氧化物纳米结构,研究了绿色反应物的种类及其用量的影响。淀粉是高效合成具有最规整形态的LuCuO-LuO纳米束的合适绿色反应物。利用多种表征方法仔细研究了基于LuCuO的纳米结构的特性。然后,评估了所制备纳米束对去除各种有毒污染物的催化作用。筛选了光催化纳米结构的用量、污染物化合物的浓度以及催化降解过程中光源类型的影响。本研究结果表明,在紫外光照射下,使用0.05 g的LuCuO-LuO纳米束,2小时内可降解98.5%浓度为10 ppm的污染物。实验结果还证明,在光催化过程中,超氧自由基在消除有毒污染物方面发挥着重要作用。据我们所知,这是首次报道通过简便且环保的方法制备LuCuO-LuO纳米复合材料及其光催化效率。