title: Graphitic carbon nitride nanofibers in seaweed-like architecture for gas chromatographic separations.
abstract: Seaweed-like graphitic carbon nitride (g-C3N4) has a unique porous architecture composed of interlocking g-C3N4nanofibers (NF-C3N4) with much higher surface area than bulk g-C3N4and shows good potential in separation science. This work investigated the separation performance of NF-C3N4as stationary phase for capillary gas chromatographic (GC) separations. The NF-C3N4column exhibits weak polarity and high column efficiency of 4728 plates/m for n-dodecane. Importantly, it displays good separation performance for a wide range of analytes and shows different retention behaviors from the bulk g-C3N4column and commercial HP-5MS column with 5% phenylpolysiloxane. Particularly, it shows high resolving capability for both aliphatic and aromatic isomers. In addition, NF-C3N4column has high thermal stability up to 280°C and good separation repeatability with relative standard deviation (RSD) values in the range of 0.29-0.61% for intra-day, 0.56-1.1% for inter-day and 2.0-4.9% for between-column, respectively. Moreover, it was applied for the determination of isomer impurities in real samples, showing good potential in GC applications.
authors.affiliation: Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials and School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Yunzhong
authors.initials: Y
authors.lastname: Zheng
authors.affiliation: Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials and School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China.
authors.forename: Qing
authors.initials: Q
authors.lastname: Han
authors.affiliation: Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials and School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China. Electronic address: mlqi2013@163.com.
authors.forename: Meiling
authors.initials: M
authors.lastname: Qi
authors.affiliation: Key Laboratory of Cluster Science, Ministry of Education of China, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials and School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China. Electronic address: lqu@bit.edu.cn.
authors.forename: Liangti
authors.initials: L
authors.lastname: Qu
mesh_terms: D000438:Alcohols / Q000032:analysis / Q000302:isolation & purification; D000473:Alkanes / Q000032:analysis / Q000302:isolation & purification; D001555:Benzene Derivatives / Q000032:analysis / Q000302:isolation & purification; D002849:Chromatography, Gas / Q000295:instrumentation / Q000379:methods*; D006108:Graphite / Q000737:chemistry*; D007536:Isomerism; D057139:Nanofibers / Q000737:chemistry*; D009570:Nitriles / Q000737:chemistry*; D015203:Reproducibility of Results; D013696:Temperature
chemical_list: D000438:Alcohols; D000473:Alkanes; D001555:Benzene Derivatives; D009570:Nitriles; C011206:cyanogen; D006108:Graphite; C015763:cumene
keywords: Capillary gas chromatography; Isomers; Seaweed-like graphitic carbon nitride; Separation performance; Stationary phase