...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Ultrafine silver nanoparticles deposited on sodium-doped graphitic carbon nitride towards enhanced photocatalytic degradation of dyes and antibiotics under visible light irradiation
【24h】

Ultrafine silver nanoparticles deposited on sodium-doped graphitic carbon nitride towards enhanced photocatalytic degradation of dyes and antibiotics under visible light irradiation

机译：沉积在钠掺杂石墨碳氮化物中的超细银纳米颗粒，可在可见光照射下增强染料和抗生素的光催化降解

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Ultrafine nanoparticle or single-atom deposition can improve the photocatalytic activity of graphitic carbon nitride (g-C3N4) efficiently. Herein, we prepared sodium ion-doped g-C3N4 photocatalyst deposited with ultrafine silver nanoparticles ( 1 nm) by a facile and efficient one-pot route. Sodium sulfate was used as an inexpensive and green precursor to achieve the doping of sodium ions to g-C3N4. Ultrafine silver nanoparticles were anchored in-situ on the surface of g-C3N4 to construct Schottky heterojunction during thermal poly-condensation. The band gap and valence band position of g-C3N4 were tuned by sodium ion doping, which enhanced visible light absorption and oxidizing ability. Both ultrafine silver nanoparticles and sodium ions accelerated the migration of photogenerated electrons and promoted the separation of photogenerated carries. These merits were synergistic to cause the excellent enhanced photocatalytic activity of sodium ion-doped g-C3N4 deposited with ultrafine silver nanoparticles in degradation of Rhodamine B and tetracycline hydrochloride under visible light irradiation.
机译：超细纳米颗粒或单原子沉积可以有效提高石墨氮化碳（g-C3N4）的光催化活性。在本文中，我们通过一种便捷高效的一锅法制备了钠离子掺杂的g-C3N4光催化剂，该光催化剂沉积有超细银纳米颗粒（<1 nm）。硫酸钠被用作廉价且绿色的前体，以实现将钠离子掺杂到g-C3N4中。将超细银纳米颗粒原位锚固在g-C3N4的表面上，以在热缩聚过程中构建肖特基异质结。 g-C3N4的带隙和价带位置通过钠离子掺杂来调节，从而增强了可见光的吸收和氧化能力。超细银纳米颗粒和钠离子都加速了光生电子的迁移，并促进了光生携带物的分离。这些优点协同作用，使可见光照射下超细银纳米颗粒沉积的钠离子掺杂的g-C3N4的光催化活性极佳地增强了若丹明B和盐酸四环素的降解。

著录项

  • 来源
    《Applied Surface Science》 |2019年第15期|741-748|共8页
  • 作者

    Wang Kai-Li; Li Yan; Sun Tao; Mao Fang; Wu Ji-Kui; Xue Bin;

  • 作者单位

    Shanghai Ocean Univ, Coll Food Sci & Technol, Dept Chem, Shanghai 201306, Peoples R China;

    Shanghai Ocean Univ, Coll Food Sci & Technol, Dept Chem, Shanghai 201306, Peoples R China|Minist Agr, Qual Supervis Inspect & Testing Ctr Cold Storage, Shanghai 201306, Peoples R China|Shanghai Ocean Univ, Natl Expt Teaching Demonstrat Ctr Food Sci & Engn, Shanghai 201306, Peoples R China;

    Shanghai Ocean Univ, Coll Food Sci & Technol, Dept Chem, Shanghai 201306, Peoples R China|Minist Agr, Qual Supervis Inspect & Testing Ctr Cold Storage, Shanghai 201306, Peoples R China|Shanghai Ocean Univ, Natl Expt Teaching Demonstrat Ctr Food Sci & Engn, Shanghai 201306, Peoples R China;

    Shanghai Ocean Univ, Coll Food Sci & Technol, Dept Chem, Shanghai 201306, Peoples R China|Minist Agr, Qual Supervis Inspect & Testing Ctr Cold Storage, Shanghai 201306, Peoples R China|Shanghai Ocean Univ, Natl Expt Teaching Demonstrat Ctr Food Sci & Engn, Shanghai 201306, Peoples R China;

    Shanghai Ocean Univ, Coll Food Sci & Technol, Dept Chem, Shanghai 201306, Peoples R China|Minist Agr, Qual Supervis Inspect & Testing Ctr Cold Storage, Shanghai 201306, Peoples R China|Shanghai Ocean Univ, Natl Expt Teaching Demonstrat Ctr Food Sci & Engn, Shanghai 201306, Peoples R China;

    Shanghai Ocean Univ, Coll Food Sci & Technol, Dept Chem, Shanghai 201306, Peoples R China|Minist Agr, Qual Supervis Inspect & Testing Ctr Cold Storage, Shanghai 201306, Peoples R China|Shanghai Ocean Univ, Natl Expt Teaching Demonstrat Ctr Food Sci & Engn, Shanghai 201306, Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Ultrafine nanoparticles; Doping; Photocatalysis; Organic pollutant degradation;

    机译：超细纳米颗粒掺杂光催化有机污染物降解;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号