张猛   

张猛,副教授,硕士生导师,“泰山学者”团队核心成员。江苏省“科技副总”、青岛市十二届青年科技奖、青岛科技大学“科研新秀”、中国晶体学会会员、材料研究学会专业会员、中国化工学会高级会员、全国材料与器件科学家智库磁性材料与器件专家委员会常务委员、中国仪器仪表学会仪表功能材料分会电子元器件关键材料与技术专业委员会委员、国家自然科学基金/山东省自然科学基金/青岛市高新技术企业评审专家、SCI期刊《Frontiers ...Detials

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

Release time:2021-03-15  Hits:

  • Key Words:Ball milling;Dispersion (waves) - Dispersions - Efficiency - Fabrication - Milling (machining) - Nanoparticles - Photodegradation - Photoluminescence spectroscopy
  • Abstract: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.
  • Volume:802
  • Issue:-
  • Translation or Not:no