节点文献

铬酸铅纳米棒:一种高效、稳定的可见光产氧和光降解催化剂（英文）

PbCrO4 yellow-pigment nanorods: An efficient and stable visible-light-active photocatalyst for O2 evolution and photodegradation

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具，请取消加速工具后下载。

【作者】 张国强； 刘国帅； 徐杨森； 杨建华； 李瑛； 孙晓娟； 陈伟； 苏陈良；

【Author】 Guo-Qiang Zhang;Guoshuai Liu;Yangsen Xu;Jianhua Yang;Ying Li;Xiaojuan Sun;Wei Chen;Chen-Liang Su;SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University;State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology;College of Physical Science and Technology, Central China Normal University;State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics,Fine Mechanics and Physics;Department of Chemistry, National University of Singapore;

【机构】 SZU-NUS Collaborative Innovation Center for Optoelectronic Science & Technology, International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology of Ministry of Education, College of Optoelectronic Engineering, Shenzhen University； State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology； College of Physical Science and Technology, Central China Normal University； State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics,Fine Mechanics and Physics； Department of Chemistry, National University of Singapore；

【摘要】 本文利用简单的沉淀反应将工业废水中含有的剧毒Pb（II）和Cr（VI）离子制备成纳米棒状的黄色颜料PbCrO4.合成的PbCrO4纳米棒是一种高效的可见光活性产氧和光降解催化剂.此纳米棒具有优异的光催化稳定性和催化活性,在可见光下分解水产氧速率高达314.0μmol h-1g-1,在420±10和600±10 nm处量子效率分别为2.16%和0.05%.此外,该催化剂还具有良好的可见光降解亚甲基蓝、甲基蓝、甲基橙和苯酚的性能.以上结果表明,将剧毒含重金属污染物Pb（II）和Cr（VI）的离子溶液转化为环境友好且高效的可见光光催化剂是可行的.该策略利用污染物产生清洁能源并降解污染物,是绿色、环境友好且非常有前景的废物利用途径.

【Abstract】 Here, PbCrO4 nanorods, a commonly used and low-cost yellow pigment, was synthesized via a simple precipitation reaction and can serve as a highly efficient oxygen production and photodegradation photocatalyst. The obtained PbCrO4 nanorods exhibit excellent stability and photocatalytic performance for O2 evolution from water. The production rate is approximately 314.0 μmol h-1 g-1 under visible light, and the quantum efficiency is approximately 2.16% at 420±10 nm and 0.05% at 600±10 nm. In addition, the PbCrO4 shows good degradation performance for methylene blue, methyl blue, methyl orange and phenol under visiblelight irradiation. These results indicate that it is potential to fabricate an effective, robust PbCrO4 photocatalyst by transforming heavy-metal pollutants Pb（II） and Cr（VI） into a highly efficient O2 evolution and photodegradation material.This strategy which uses pollutant to produce clean energy and degrade contaminants is completely green and environmentally benign, and thus could be a promising way for practical environmental applications.

【关键词】 O2 evolution； pollutant； PbCrO4 nanorods； visible-light-active； photocatalyst；
【Key words】 O2 evolution； pollutant； PbCrO4 nanorods； visible-light-active； photocatalyst；
【基金】 jointly supported by the National Natural Science Foundation of China(21401190);the Science and Technology Project of Research Foundation of China Postdoctoral Science(2017M612710 and 2016M592519);Shenzhen Peacock Plan(827-000059,827-000113 and KQTD2016053112042971);the Science and Technology Planning Project of Guangdong Province(2016B050501005);the Educational Commission of Guangdong Province(2016KCXTD006 and 2016KSTCX126)
  • 【文献出处】 Science China Materials ,中国科学:材料科学(英文版) , 编辑部邮箱 ,2018年08期
  • 【分类号】O643.36;TB383.1
  • 【下载频次】99
打印本页
节点文献中：