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- Title
Enhanced Catalytic Performance of Ag NP/0.95AgNbO 3 -0.05LiTaO 3 Heterojunction from the Combination of Surface Plasma Resonance Effect and Piezoelectric Effect Using Facile Mechanical Milling.
- Authors
Ren, Tianxiang; He, Tufeng; Cao, Zhenzhu; Xing, Pengyue; Teng, Xinglong; Li, Guorong
- Abstract
An internal built electric field can suppress the recombination of electron–hole pairs and distinctly enhance the catalytic activity of a photocatalyst. Novel t-Ag/0.95AgNbO3-0.05LiTaO3 heterojunction was prepared by reducing silver nanoparticles (Ag NPs) on the surface of the piezoelectric powder 0.95AgNbO3-0.05LiTaO3 (0.05-ANLT) using a simple mechanical milling method. The effects of milling time and excitation source used for the degradation of organic dye by heterojunction catalysts were investigated. The results demonstrate that the optimized 1.5-Ag/0.05-ANLT heterojunction removes 97% RhB within 40 min, which is 7.8 times higher than that of single piezoelectric catalysis and 25.4 times higher than that of single photocatalysis. The significant enhancement of photocatalytic activity can be attributed to the synergistic coupling of the surface plasmon resonance (SPR) effect and the piezoelectric effect.
- Subjects
PIEZOELECTRICITY; PLASMA resonance; RESONANCE effect; MECHANICAL alloying; SURFACE plasmon resonance; ELECTRON-hole recombination; HETEROJUNCTIONS
- Publication
Nanomaterials (2079-4991), 2023, Vol 13, Issue 22, p2972
- ISSN
2079-4991
- Publication type
Article
- DOI
10.3390/nano13222972