食品科学 ›› 2020, Vol. 41 ›› Issue (19): 296-302.doi: 10.7506/spkx1002-6630-20191018-181

• 专题论述 • 上一篇    下一篇

石墨相氮化碳在食品分析前处理制备技术中的发展和应用

马帅,由天艳,王坤,王蒙,潘立刚   

  1. (1.北京农业质量标准与检测技术研究中心,北京 100097;2.江苏大学农业装备工程学院,现代农业装备与技术教育部重点实验室,江苏?镇江 212013)
  • 出版日期:2020-10-15 发布日期:2020-10-23
  • 基金资助:
    农业部农产品质量安全风险评估实验室(北京)开放课题(ZBZXKFKT201701)

A Review of the Development and Application of Graphite Phase Carbon Nitride in Sample Pretreatment Techniques for Food Analysis

MA Shuai, YOU Tianyan, WANG Kun, WANG Meng, PAN Ligang   

  1. (1. Beijing Research Center for Agricultural Standards and Testing, Beijing 100097, China;2. Key Laboratory of Modern Agriculture Equipment and Technology, Ministry of Education, School of Agricultural Equipment Engineering, Jiangsu University, Zhenjiang 212013, China)
  • Online:2020-10-15 Published:2020-10-23

摘要: 石墨相氮化碳(g-C3N4)是一种新型的二维石墨烯类似物,在分离科学和前处理制备技术方面具有巨大的应用潜力。g-C3N4具有超高硬度、低密度、良好的生物相容性、表面可修饰和较强的吸附亲和力等优异性能。g-C3N4的制备和吸附条件决定了材料的结构和表面理化性质,其内置富氮官能团和电子离域性质赋予其多种吸附机理,包括络合效应、氢键、氧化还原反应、π-π共轭效应、疏水作用、酸碱反应和静电相互作用等。当前,g-C3N4与固相萃取、磁性固相萃取和固相微萃取等技术相结合,已应用于食品分析样品的前处理制备。本文重点介绍g-C3N4的结构性能、吸附机理以及在样品前处理中的应用,以加强对g-C3N4优异性能的认识,促进g-C3N4在食品分析样品前处理中的发展和应用。

关键词: 样品前处理;石墨相氮化碳;结构性能;吸附机理

Abstract: As a new two-dimensional graphene analogue, graphitic carbon nitride (g-C3N4) shows great potential for separation science and sample pretreatment techniques. g-C3N4 has excellent properties such as ultra-high hardness, low density, good biocompatibility, surface modifiability and strong adsorption affinity. The structure and surface physicochemical properties of g-C3N4, related to its absorption behavior, are mainly depended on the preparation and adsorption conditions. The N-rich functional groups and electronic delocalization properties endow g-C3N4 with a complex absorption mechanism involving complexion, hydrogen bonding, redox reaction, π–π conjugation, hydrophobic effect, acid-base reaction and electrostatic interaction. At present, g-C3N4 has been applied in sample pretreatment techniques including solid-phase extraction, magnetic solid-phase extraction, and solid-phase microextraction for food analysis. In order to improve the knowledge of its superior properties and facilitate its applications as a sorbent in sample pretreatment for food analysis, the structure, properties, and adsorption mechanism of g-C3N4 are reviewed in this article.

Key words: sample pretreatment;?graphitic carbon nitride; structure and properties; adsorption mechanism

中图分类号: