论文成果
Facile fabrication of g-C<inf>3</inf>N<inf>4</inf>/SnO<inf>2</inf> composites and ball milling treatment for enhanced photocatalytic performance
- 发布时间：2021-03-15
- 点击次数：
- 关键字：Ball milling;Dispersion (waves) - Dispersions - Efficiency - Fabrication - Milling (machining) - Nanoparticles - Photodegradation - Photoluminescence spectroscopy
- 摘要：Ultrafine SnO<inf>2</inf> nanoparticles (NPs) with diameters of 2–4 nm were in situ fabricated on the surfaces of g-C<inf>3</inf>N<inf>4</inf> material through a hydrothermal method. Ball milling was then applied to treat the obtained g-C<inf>3</inf>N<inf>4</inf>/SnO<inf>2</inf> composites in order to improve the dispersion of SnO<inf>2</inf> NPs as well as to strengthen the bonding between SnO<inf>2</inf> and g-C<inf>3</inf>N<inf>4</inf>. The enhanced separation efficiency of photogenerated carriers, as indicated by the photoluminescence spectrum, was achieved after the ball milling treatment. Consequently, the ball milled g-C<inf>3</inf>N<inf>4</inf>/SnO<inf>2</inf> composite demonstrated significantly improved photocatalytic performance when degrading crystal violet, as evidenced by photodegradation efficiency enhancements of 5.06 and 3.23 times, respectively, when compared with bulk g-C<inf>3</inf>N<inf>4</inf> and the in situ synthesized g-C<inf>3</inf>N<inf>4</inf>/SnO<inf>2</inf> composite; these improvements were due to more useable and accessible electronic transport sites at the interfaces of the composites.<br/> © 2019 Elsevier B.V.
- 卷号：802
- 期号：-
- 是否译文：否
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