Mechanochemical Synthesis of Bi2VO5.5 for Improved Photocatalytic Dye Degradation

Author:

Kumar Manish1,Vaish Rahul1,Sung Tae Hyun2,Kumar Anuruddh3ORCID,Yousef El Sayed45

Affiliation:

1. School of Mechanical and Materials Engineering Indian Institute of Technology Mandi Mandi 175005 India

2. Department of Electrical Engineering Hanyang University 222, Wangsimni‐ro, Seongdong‐gu Seoul 04763 Korea

3. Center for Creative Convergence Education, Hanyang University 222, Wangsimni‐ro, Seongdong‐gu 04763 Seoul Korea

4. Research Center for Advanced Materials Science (RCAMS) King Khalid University 61413, P. O. Box 9004 Abha 9004 Saudi Arabia

5. Physics Departement Faculty of Science King Khalid University P. O. Box 9004 Abha 9004 Saudi Arabia

Abstract

AbstractA single‐phase Bi2VO5.5 powder is formed effectively through a mechanochemical ball milling approach at 650 °C in 5 h and its photocatalytic performance on methylene blue dye is explored. X‐ray diffraction and Raman spectroscopy analytical instruments are utilized to confirm the phase formation. The evident presence of irregular‐shaped grains is affirmed using a scanning electron microscope. To ascertain the chemical condition of the components present, the Bi2VO5.5 powdered sample undergo an X‐Ray photoelectron spectroscopy investigation. The sample is analyzed using a time‐dependent photocurrent to discern its charge carrier transportation behavior. A photocatalytic study using Bi2VO5.5 powder produced through the mechanochemical ball milling method has not been explored till now. The efficacy of the ball‐milled Bi2VO5.5 powder to attain enhanced photocatalytic efficiency which hasn't been investigated till now, is explored. The ball‐milled Bi2VO5.5 sample achieved 70% degradation efficiency when performing the photocatalysis investigation. The photocatalytic dye degradation discerns pseudo‐first‐order kinetics and achieves a notable k value of 0.00636 min−1. The scavenger test indicates that h+ radicals are the prominent active species during the photocatalysis experiment. The germination index is determined by conducting a phytotoxicity test with the use of Vigna radiata seeds. Here ball‐milled Bi2VO5.5 powder attains enhanced dye degradation efficiency.

Publisher

Wiley

Subject

Multidisciplinary

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