文章摘要
殷广明.g-C3N4/ZnCo2O4微球的制备及光催化降解四环素[J].精细化工,2020,37(7):0
g-C3N4/ZnCo2O4微球的制备及光催化降解四环素
Preparation and photocatalytic degradation of antibiotics of g-C3N4/ZnCo2O4 microspheres
投稿时间:2019-12-24  修订日期:2020-03-01
DOI:
中文关键词: ZnCo2O4  g-C3N4  微球  光催化  四环素
英文关键词: ZnCo2O4  g-C3N4  microspheres  photo-catalytic  tetracycline
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目)
作者单位E-mail
殷广明 齐齐哈尔大学 qdyingm@163.com 
摘要点击次数: 202
全文下载次数: 0
中文摘要:
      以ZnCo2O4微球材料为基础材料,采用溶液分散吸附和100 oC下恒温12 h方法制备了g-C3N4负载的ZnCo2O4复合材料,并采用X-射线衍射(XRD)、扫描电镜(SEM)、光电子能谱(XPS)和固体紫外漫反射(Uv-DRS)技术对其进行了表征。ZnCo2O4与g-C3N4之间形成异质结结构,禁带宽度值为1.73 eV。在可见光的照射下,ZnCo2O4的光生电子(e?)在异质结处的C3N4的离域π键所捕获,有效的促进了ZnCo2O4的光生电子(e?)和光生空穴(h+)分离,ZnCo2O4的光生空穴(h+)是光催化降解四环素水溶液的主要因素。在可见光下,初始浓度为10 mg/L的四环素水溶液(C22H24N2O8)最高降解率可达到90.02 %。
英文摘要:
      Based on ZnCo2O4 microspheres,g-C3N4/ZnCo2O4 composite were prepared by solution adsorption and insulation at 100 ℃ for 12 h. The materials were characterized by XRD, SEM, XPS and Uv-DRS. The heterostructure was formed between ZnCo2O4 and g-C3N4. The bandgap width of g-C3N4/ZnCo2O4 composite was 1.73 eV. Under the visible light irradiation, the photogenic electron (e?) and the photogenic hole (h+) of ZnCo2O4 was effectively separated via capturing e? of ZnCo2O4 by the delocalized π bond of C3N4 in the heterojunction region. The photogenic h+ of ZnCo2O4 participate in reaction of the photocatalytic degradation tetracycline (C22H24N2O8, Initial concentration: 10 mg/L) in water, g-C3N4/ZnCo2O4 composite have better degradation properties for tetracycline, and the highest degradation rate is 90.02 %.
  查看/发表评论  下载PDF阅读器
关闭