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CVD 法制备 MXene@CNTs 杂化纳米复合材料去除危险污染物的简便一步合成。

Facile single-step synthesis of MXene@CNTs hybrid nanocomposite by CVD method to remove hazardous pollutants.

机构信息

Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India.

Department of Physics, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India.

出版信息

Chemosphere. 2022 Jan;286(Pt 2):131733. doi: 10.1016/j.chemosphere.2021.131733. Epub 2021 Jul 29.

Abstract

In the present work, facile preparation of MXenes based nanocomposite (MXene-CNTs) through catalytic chemical vapor deposition (cCVD) was demonstrated. The novel design of two and one-dimensional (2D/1D) MXene-CNTs composites for an extraordinary photocatalytic process for removal of Rhodamine B (RhB) using efficient photocatalytic dye degradations was compared to the performance of pure MXene. The surface morphological behavior of MAX, MXene and MXene-CNTs rational design of surface microstructure CNTs anchored on 2D materials MXene nanosheets product was characterized employing scanning electron microscopy (SEM). As-prepared direct growth CNTs by employing CVD method were in the size ranges of 40-90 nm as revealed from SEM images. The crystallographic structures of etching and delaminations of MAX and MXene-CNTs were observed for CNTs diffracted peaks at 2θ = 25.11° in support of (002) plan. The major C-O and (CC) stretching were confirmed. Prepared MXene and MXene-CNTs samples photocatalytic performance was investigated through photocatalytic Rhodamine B (RhB) dye degradation. MXene-based CNTs hybrid nanocomposites photocatalysts activity were estimated. The as-prepared pure MXene-RhB and MXene-CNTs-RhB materials calculated efficiency were 60 % and 75 %, respectively. The CVD preparations of new MXene-CNTs synthesis yield high and explored good successive cycles for hazardous pollutants.

摘要

在本工作中,通过催化化学气相沉积(cCVD)展示了基于 MXenes 的纳米复合材料(MXene-CNTs)的简便制备。通过比较纯 MXene 的性能,展示了二维(2D)/一维(1D)MXene-CNTs 复合材料在使用高效光催化染料降解去除 Rhodamine B(RhB)的非凡光催化过程中的新颖设计。采用扫描电子显微镜(SEM)对 MAX、MXene 和 MXene-CNTs 的表面形貌行为进行了表征,合理设计了表面微结构 CNTs 锚定在二维材料 MXene 纳米片产品上。通过 CVD 方法制备的直接生长 CNTs 的 SEM 图像显示其尺寸范围为 40-90nm。在支持(002)平面的情况下,观察到 MAX 和 MXene-CNTs 的蚀刻和分层的晶相结构,CNTs 的衍射峰出现在 2θ=25.11°处。证实了主要的 C-O 和(CC)伸缩。通过光催化 Rhodamine B(RhB)染料降解研究了制备的 MXene 和 MXene-CNTs 样品的光催化性能。评估了基于 MXene 的 CNTs 杂化纳米复合材料光催化剂的活性。制备的纯 MXene-RhB 和 MXene-CNTs-RhB 材料的计算效率分别为 60%和 75%。新的 MXene-CNTs 合成的 CVD 制备产量高,并探索了对危险污染物的良好连续循环。

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