α-氧化铁/氧化石墨烯粉末和薄膜纳米复合材料作为从废水中去除染料的特殊光催化剂。
α-FeO/graphene oxide powder and thin film nanocomposites as peculiar photocatalysts for dye removal from wastewater.
作者信息
Khoshnam Mahsa, Farahbakhsh Javad, Zargar Masoumeh, Mohammad Abdul Wahab, Benamor Abdelbaki, Ang Wei Lun, Mahmoudi Ebrahim
机构信息
Material Science and Engineering Department, Isfahan University of Technology, Isfahan, Iran.
School of Engineering, Edith Cowan University, Joondalup, WA, 6027, Australia.
出版信息
Sci Rep. 2021 Oct 13;11(1):20378. doi: 10.1038/s41598-021-99849-x.
In this study, hematite graphene oxide (αFeO-GO) powder nanocomposites and thin-film hematite graphene oxide (αFeO-GO) were synthesized for application in the removal of Rhodamine B (RhB) from textile wastewater. αFeO-GO nanomaterials were placed onto the FTO substrate to form a thin layer of nanocomposites. Different analysis including XRD, FTIR, Raman spectra, XPS, and FESEM were done to analyze the morphology, structure, and properties of the synthesized composites as well as the chemical interactions of αFeO with GO. The photocatalytic performance of two synthesized composites was compared with different concentrations of αFeO-GO. The results showed that powder nanocomposites are more effective than thin-film composites for the removal of RhB dye. αFeO-GO-5% powder nanocomposites removed over 64% of dye while thin-film nanocomposites had less removal efficiencies with just under 47% removal rate. The reusability test was done for both materials in which αFeO-GO-5% powder nanocomposites removed a higher rate of dye (up to 63%) in more cycles (6 cycles).
在本研究中，合成了赤铁矿氧化石墨烯（αFeO-GO）粉末纳米复合材料和薄膜赤铁矿氧化石墨烯（αFeO-GO），用于从纺织废水中去除罗丹明B（RhB）。将αFeO-GO纳米材料放置在FTO基板上，形成一层纳米复合材料薄层。进行了包括XRD、FTIR、拉曼光谱、XPS和FESEM在内的不同分析，以分析合成复合材料的形态、结构和性能，以及αFeO与GO的化学相互作用。比较了两种合成复合材料在不同浓度αFeO-GO下的光催化性能。结果表明，粉末纳米复合材料在去除RhB染料方面比薄膜复合材料更有效。αFeO-GO-5%粉末纳米复合材料去除了超过64%的染料，而薄膜纳米复合材料的去除效率较低，去除率略低于47%。对两种材料都进行了可重复使用性测试，其中αFeO-GO-5%粉末纳米复合材料在更多循环（6个循环）中去除染料的速率更高（高达63%）。
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