title: Graphitic carbon nitride solid nanofilms for selective and recyclable sensing of Cu2+ and Ag+ in water and serum.
abstract: Herein we report the fabrication of g-C3N4 nanofilms and their application as a solid fluorescence sensor. The as-prepared films are capable of convenient, sensitive, selective, rapid and recyclable sensing of Cu(2+) and Ag(+) in water and serum, indicating the sensor's potential application in disease diagnosis. Attractively, our sensor is able to differentiate Cu(2+) and Ag(+) by making use of their different adsorption and desorption kinetics during the interaction with g-C3N4 nanofilms.
authors.affiliation: Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China. xianfeng_chen@hotmail.com junfan@cityu.edu.hk apwjzh@cityu.edu.hk.
authors.forename: Heqin
authors.initials: H
authors.lastname: Huang
authors.forename: Rui
authors.initials: R
authors.lastname: Chen
authors.forename: Jiale
authors.initials: J
authors.lastname: Ma
authors.forename: Li
authors.initials: L
authors.lastname: Yan
authors.forename: Yingqi
authors.initials: Y
authors.lastname: Zhao
authors.forename: Yu
authors.initials: Y
authors.lastname: Wang
authors.forename: Wenjun
authors.initials: W
authors.lastname: Zhang
authors.forename: Jun
authors.initials: J
authors.lastname: Fan
authors.forename: Xianfeng
authors.initials: X
authors.lastname: Chen
mesh_terms: D000327:Adsorption; D003300:Copper / Q000032:analysis* / Q000097:blood / Q000737:chemistry; D006108:Graphite / Q000737:chemistry*; D006878:Hydroxides / Q000737:chemistry; D049329:Nanostructures / Q000737:chemistry*; D009570:Nitriles / Q000737:chemistry*; D044967:Serum / Q000737:chemistry; D012834:Silver / Q000032:analysis* / Q000097:blood / Q000737:chemistry
chemical_list: D006878:Hydroxides; D009570:Nitriles; D012834:Silver; C011206:cyanogen; D006108:Graphite; D003300:Copper