暴露于高浓度的铬黑 T 染料会导致一些疾病,例如皮肤感染、癌症和失明。因此,在本文中,MgCO 3 /MnCO 3(简称MC)和MgMn 2 O 4 /Mn 2 O 3(缩写为 MO)分别使用沉淀法和点火法轻松合成了新型纳米结构。产生的 Mg/Mn 纳米结构用于从水溶液中有效去除铬黑 T 染料。因此,与文献中的许多其他吸附剂相比,我们目前工作的新颖之处在于使用一种简单、容易且廉价的方法来合成新颖有效的新型纳米结构,以有效去除铬黑 T 染料。合成的纳米结构的高效率是由于它们的微晶尺寸小和表面积大,这使得它们的吸附性能高。XRD 证实 MC 和 MO 产品的平均晶体尺寸分别为 80.36 和 88.75 nm。FE-SEM 显示 MC 产品包括准球形,其平均直径等于 0.53 μm。此外,MO 产品包括平均直径为 0.25 μm 的准球形、平均直径为 0.43 μm 的多面体形状和平均直径为 0.35 μm 宽和 4.63 μm 长的矩形棒。HR-TEM 显示 MC 产品包括准球形,其平均直径等于 0.62 μm。此外,MO 产品包括平均直径等于 0.41 μm 的多面体形状和平均直径等于 0.15 μm 宽度和 0.45 μm 长度的矩形棒。MC 和 MO 产品的 BET 表面积分别为 66.47 和 60.23 m 平均直径等于 0.43 μm 的多面体形状,以及平均直径等于 0.35 μm 宽和 4.63 μm 长的矩形棒。HR-TEM 显示 MC 产品包括准球形,其平均直径等于 0.62 μm。此外,MO 产品包括平均直径等于 0.41 μm 的多面体形状和平均直径等于 0.15 μm 宽度和 0.45 μm 长度的矩形棒。MC 和 MO 产品的 BET 表面积分别为 66.47 和 60.23 m 平均直径等于 0.43 μm 的多面体形状,以及平均直径等于 0.35 μm 宽和 4.63 μm 长的矩形棒。HR-TEM 显示 MC 产品包括准球形,其平均直径等于 0.62 μm。此外,MO 产品包括平均直径等于 0.41 μm 的多面体形状和平均直径等于 0.15 μm 宽度和 0.45 μm 长度的矩形棒。MC 和 MO 产品的 BET 表面积分别为 66.47 和 60.23 m 41 μm 和矩形棒,其平均直径等于 0.15 μm 宽和 0.45 μm 长。MC 和 MO 产品的 BET 表面积分别为 66.47 和 60.23 m 41 μm 和矩形棒,其平均直径等于 0.15 μm 宽和 0.45 μm 长。MC 和 MO 产品的 BET 表面积分别为 66.47 和 60.23 m2 /克,分别。此外,MC 和 MO 产品对铬黑 T 染料的最大吸收能力分别为 416.67 和 386.10 mg/g。此外,伪一级模型和 Langmuir 等温线更好地描述了使用 MC 和 MO 产品对铬黑 T 染料的吸附。此外,使用 MC 和 MO 产品去除铬黑 T 染料是一个放热的物理过程。
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A Facile Sol-gel Synthesis and Characterization of MgCO3/MnCO3 and MgMn2O4/Mn2O3 Novel Nanostructures With Remarkably High Adsorption Activity Toward Eriochrome Black T Dye
Exposure to high concentrations of the Eriochrome Black T dye causes some diseases such as skin infections, cancer, and blindness. Hence, in this paper, MgCO3/MnCO3 (Abbreviated as MC) and MgMn2O4/Mn2O3 (Abbreviated as MO) novel nanostructures were facilely synthesized using the precipitation and ignition methods, respectively. The produced Mg/Mn nanostructures were used for the effective removal of Eriochrome Black T dye from aqueous solutions. Therefore, the novelty in our current work comes from the use of a simple, easy, and inexpensive method to synthesize novel and effective novel nanostructures for the efficient removal of Eriochrome Black T dye compared to many other adsorbents in the literature. The high efficiency of the synthesized nanostructures is due to their small crystallite size and large surface area, which makes their adsorption property high. The XRD confirmed that the mean crystal size of the MC and MO products is 80.36 and 88.75 nm, respectively. The FE-SEM revealed that the MC product includes quasi-spherical shapes where their mean diameter equals 0.53 μm. Besides, the MO product includes quasi-spherical shapes where their mean diameter equals 0.25 μm, polyhedral shapes where their mean diameter equals 0.43 μm, and rectangular rods where their mean diameter equals 0.35 μm width and 4.63 μm length. The HR-TEM revealed that the MC product includes quasi-spherical shapes where their mean diameter equals 0.62 μm. Besides, the MO product includes polyhedral shapes where their mean diameter equals 0.41 μm and rectangular rods where their mean diameter equals 0.15 μm width and 0.45 μm length. The BET surface area of the MC and MO products is 66.47 and 60.23 m2/g, respectively. Furthermore, the maximum uptake capabilities of the MC and MO products toward Eriochrome Black T dye are 416.67 and 386.10 mg/g, respectively. Besides, the adsorption of the Eriochrome Black T dye using the MC and MO products is better described by the pseudo-first-order model and Langmuir isotherm. Additionally, the use of the MC and MO products to remove the Eriochrome Black T dye is an exothermic and physical process.