NanoBio High-Tech Materials Research Center, Department of Biological Engineering, Inha University, 100 Inha-ro, Incheon, 22212, Republic of Korea.
Chungcheong Division Reliability Center, Korea Confomity Laboratories, Yuseong-gu, Daejeon, 34027, Republic of Korea.
Chemosphere. 2022 Jan;286(Pt 2):131679. doi: 10.1016/j.chemosphere.2021.131679. Epub 2021 Aug 3.
We prepared two-dimensional (2D) stack-structured magnetic iron oxide (FeO) nanoparticle anchored titanium carbide (TiCT) MXene material (TiCT/FeO). It was used as a potential adsorbent to remove carcinogenic cationic dyes, such as methylene blue (MB) and rhodamine B (Rh B), from aqueous solutions. TiCT/FeO exhibited maximum adsorption capacities of 153 and 86 mg g for MB and Rh B dyes, respectively. Batch adsorption experimental data fits the Langmuir model well, revealing monolayer adsorption of MB and Rh B onto the adsorption sites of TiCT/FeO. Additionally, TiCT/FeO showed rapid MB/Rh B adsorption kinetics and attained equilibrium within 45 min. Moreover, TiCT/FeO demonstrated recyclability over four cycles with high stability due to the presence of magnetic FeO nanoparticles. Furthermore, it exhibited remarkable selectivities of 91% and 88% in the presence of co-existing cationic and anionic dyes, respectively. Given the extraordinary adsorption capacities, TiCT/FeO may be a promising material for the effective removal of cationic dyes from aqueous media.
我们制备了二维（2D）堆叠结构的磁性氧化铁（FeO）纳米颗粒锚定的碳化钛（TiCT）MXene 材料（TiCT/FeO）。它被用作一种潜在的吸附剂，用于从水溶液中去除致癌的阳离子染料，如亚甲蓝（MB）和罗丹明 B（Rh B）。TiCT/FeO 对 MB 和 Rh B 染料的最大吸附容量分别为 153 和 86mg/g。批量吸附实验数据很好地符合朗缪尔模型，表明 MB 和 Rh B 单层吸附在 TiCT/FeO 的吸附位上。此外，TiCT/FeO 表现出快速的 MB/Rh B 吸附动力学，在 45 分钟内达到平衡。此外，由于存在磁性 FeO 纳米颗粒，TiCT/FeO 在四个循环中表现出良好的可回收性和高稳定性。此外，它在存在共存的阳离子和阴离子染料时分别表现出 91%和 88%的显著选择性。鉴于其非凡的吸附能力，TiCT/FeO 可能是一种从水介质中有效去除阳离子染料的有前途的材料。
