Flower decorated rod-like Pd @ MnO2 nanocomposite: Focus on photocatalysis, Rietveld refinement analysis and electron density distribution analysis

被引:11
|
作者
Parvathi, L. T. [1 ,2 ]
Arunpandian, M. [3 ]
Sivaganesh, D. [3 ]
Nagarajan, E. R. [3 ]
Karuthapandian, S. [1 ]
机构
[1] VHN Senthikumara Nadar Coll Autonomous, Dept Chem, Virudunagar 626001, Tamil Nadu, India
[2] Sri Kaliswari Coll Autonomous, Dept Chem, Sivakasi 626123, Tamil Nadu, India
[3] Kalasalingam Acad Res & Educ, Int Res Ctr, Dept Chem, Krishnankoil 626126, Tamil Nadu, India
关键词
Photodegradation; Pd@MnO2; Reitveld refinement; Crystal violet; Visible light; Charge density analysis; AQUEOUS-SOLUTION; METHYL-ORANGE; ENHANCED ADSORPTION; NANOTUBE ARRAYS; DEGRADATION; REMOVAL; PHOTODEGRADATION; PERFORMANCE; FABRICATION; NANOSHEET;
D O I
10.1016/j.physb.2021.413475
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
In this scenario, the Pd doped MnO2nanocatalysts were constructed by hydrothermal route. As-synthesized Pd loaded alpha-MnO2 nanocomposites were systematically characterized by various characterization techniques, respectively. The FESEM and TEM results reveal the surface morphology, the rose flower-like Pd was evenly decorated on the MnO2 surface. The elemental compositions of the presenting elements Pd, Mn and O are confirmed by XPS spectroscopic analysis. The photocatalytic activity of 2% Pd loaded alpha-MnO2 for crystal violet (CV) degradation was very high compared to immaculate alpha-MnO2 under visible light embellishment. Moreover, the radical trapping experiment substantiates that O2 center dot- and center dot OH plays a vital role in CV abatements. This work will provide new in-depth insights into other photocatalytic nanomaterials with potential applications in the field of environmental compensation. Besides, the electron density distributions analysis was carried out for this catalyst to explain the bond length value between the atoms.
引用
收藏
页数:12
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