Journal
CERAMICS INTERNATIONAL
Volume 48, Issue 1, Pages 837-846Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2021.09.165
Keywords
Hierarchical structure; Piezocatalytic; Bi2MoxW1-xO6 solid solutions; Degradation
Categories
Funding
- National Natural Science Foundation of China [11604214]
- Foundation of Department of Edu-cation of Guangdong Province [2018KTSCX223]
- Foun-dation of Department of Science and Technology of Guangdong Province [2020A1515010814]
- Pearl River Talent Recruitment Program [2019ZT08C321]
Ask authors/readers for more resources
Hierarchical structure Bi2MoxW1-xO6 solid solutions with high surface area were prepared by hydrothermal method without surfactant. Among them, Bi2Mo0.4W0.6O6 sample showed improved piezocatalytic performance attributed to the larger piezoelectric potential generated under a strained state, facilitating charge carrier transfer and accelerating the degradation process.
Hierarchical structure Bi2MoxW1-xO6 (x = 0, 0.1, 0.2, 0.3, 0.4 and 0.5) solid solutions with high surface area are prepared by hydrothermal method without employing any surfactant. All the as-prepared products are hierarchical microspheres self-assembled by nanosheets. The piezocatalytic performance of Bi2MoxW1-xO6 solid solutions are investigated by the degradation of RhB under ultrasonic vibration. The experimental results show that the x value of Bi2MoxW1-xO6 has great influence on the piezocatalytic efficiency. Among which, the Bi2Mo0.4W0.6O6 presents a high value of the rate constant k of 0.119 min(-1) by degrading 97.5% of RhB dye solution in 30 min. It is about 43.4% higher than that of pure Bi2WO6 sample, for which k is 0.083 min(-1). Radical trapping test indicates that holes (h(+)) are the dominating active species in the degradation process. The improved piezocatalytic performance for Bi2Mo0.4W0.6O6 sample ascribes to the larger piezoelectric potential generated under a strained state, which facilitates the transfer of charge carriers and accelerate the piezocatalytic process. Our work presents a new design strategy of piezocatalysts for remediation of water pollution.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available