Ball-milling synthesized Bi2VO5.5 for piezo-photocatalytic assessment

Manish Kumar; Rahul Vaish; Imen Kebaili; Imed Boukhris; Hyeong Kwang Benno Park; Yun Hwan Joo; Tae Hyun Sung; Anuruddh Kumar

doi:10.1038/s41598-023-33658-2

Ball-milling synthesized Bi₂VO_5.5 for piezo-photocatalytic assessment

Sci Rep. 2023 May 20;13(1):8188. doi: 10.1038/s41598-023-33658-2.

Authors

Manish Kumar¹, Rahul Vaish¹, Imen Kebaili², Imed Boukhris², Hyeong Kwang Benno Park³, Yun Hwan Joo³, Tae Hyun Sung³, Anuruddh Kumar⁴

Affiliations

¹ School of Engineering, Indian Institute of Technology Mandi, Mandi, Himachal Pradesh, 175005, India.
² Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia.
³ Department of Electrical Engineering, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea.
⁴ Center for Creative Convergence Education, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul, 04763, Korea. anuruddh07@hanyang.ac.kr.

Abstract

The mechanochemical ball milling followed by heating at 650 °C for 5 h successfully produced the single-phase Bi₂VO_5.5 powder. Catalytic activity for methylene blue dye degradation was investigated. Raman spectroscopy and X-ray diffraction were used to confirm the phase formation. The sample's charge carrier transportation behavior was ascertained using time-dependent photocurrent analysis. The piezo-photocatalysis experiment yielded a 63% degradation efficiency for the ball-milled Bi₂VO_5.5 sample. The pseudo-first-order kinetics of the piezo-photocatalytic dye degradation are discerned, and the significant k value of 0.00529 min^-1 is achieved. The scavenger test declares the h⁺ radical is the predominant active species during the piezo-photocatalysis experiment. Vigna radiata seeds were used in a phytotoxicity test to evaluate the germination index. The mechanochemical activation method facilitates reactions by lowering reaction temperature and time. The effect of improved piezo-photocatalytic efficiency on the ball-milled Bi₂VO_5.5 powder is an unexplored area, and we have attempted to investigate it. Here, ball-milled Bi₂VO_5.5 powder achieved improved dye degradation performance.