Carboxyl-rich g-C₃N₄ nanoparticles: Synthesis, characterization and their application for selective fluorescence sensing of Hg²⁺ and Fe³⁺ in aqueous media

详细信息    查看全文

• 作者：Ghasem Shiravand^aAuthor Vitae ; Alireza Badiei^a ; ^b ; ^{abadiei@khayam.ut.ac.ir}Author Vitae ; Ghodsi Mohammadi Ziarani^cAuthor Vitae
• 关键词：Graphitic carbon nitride ; Carbon nitride ; g-C3N4 ; Nanosheet ; Nanoparticle ; Carboxylated-g-C3N4 ; Fluorescence ; Sensor ; One-pot synthesis ; Hydrothermal oxidation
• 刊名：Sensors and Actuators B: Chemical
• 出版年：2017
• 出版时间：April 2017
• 年：2017
• 卷：242
• 期：Complete
• 页码：244-252
• 全文大小：3821 K
• 卷排序：242

文摘

Carboxyl-rich g-C3N4 was prepared through hydrothermal oxidation of g-C3N4 nanosheet. A facile one-pot method was proposed for synthesizing of graphitic carbon nitride nanosheet containing heptazine motif. The surface groups of g-C3N4 structures were measured by ninhydrin test and acid-base titrations. Carboxyl-rich g-C3N4 was used as a fluorescence sensor for selective detection of Hg2+ and Fe3+. The prepared sensor was a highly selective On-Off fluorescence sensor for detection of Hg2+ and CN−.