褐煤黄腐酸钾制黄腐酸的分子结构表征  

Molecular structural characterization of fulvic acid made by potassium fulvic acid from lignite

作　　者：阳虹[1,2] 张玉贵[2] 李永生 江林华[2] 

机构地区：[1]河南理工大学物理化学学院,河南焦作454000 [2]河南省瓦斯地质与瓦斯治理重点实验室-省部共建国家重点实验室培育基地(河南理工大学),河南焦作454000 [3]昊华骏化集团股份有限公司,河南驻马店463000

出　　处：《河南理工大学学报（自然科学版）》2014年第4期539-542,共4页Journal of Henan Polytechnic University（Natural Science）

基　　金：国家自然科学基金资助项目(41102094);国家"十二五"科技重大专项(2011ZX05040-005);高等学校博士学科点专项科研基金(20134116110006)

摘　　要：为了进一步了解黄腐酸(FA)的结构和性质,为拓宽黄腐酸在工农业领域中的应用范围打下基础,用傅里叶红外光谱、紫外-可见光光谱和固体13C交叉极化/魔角旋转核磁共振(13CCP/MAS NMR)对FA的结构进行表征.结果表明,FA的分子结构由芳香核和核外侧链构成,其中芳香碳约占54%,芳香核主要由4个芳香环构成.脂肪碳约占46%,脂肪碳的存在形式主要是含氧的五元或六元脂肪环.FA中含氧基团的含量为32.3%,主要由醌基和羟基构成,还有部分羧基.In order to further understand the structures and properties of fulvic acid （FA）,and to laid the foundation for the broadening the applications of fulvic acid in industrial and agricultural fields,its structure was characterized by means of Fourier infrared spectroscopy （IR）,UV-Visible spectroscopy and 13 C-CP/MAS nuclear magnetic resonance （NMR）.In addition,fluorescent properties for FA have been also investigated.The result shows that FA molecular structure is consist of aromatic nucleus and side-chain.Aromatic nucleus is mainly composed of four aromatic ring structures,and aromatic carbon is about 54％.The aliphatic carbon is about 44％,which is six-membered or five-membered of oxygen heterocycle.The content of the oxygen groups is 32.3 ％ in FA,which is mainly composed of quinone and hydroxy,and a part of carboxyl group.

关 键 词：黄腐酸 紫外光谱 红外光谱 核磁共振 

分 类 号：O657.61[理学—分析化学]