神府镜煤光氧化产物的组成和结构研究

An investigation into the composition and structure of the photo-oxidation products from Shenfu vitrain

在紫外光照射下,用氧气对神府镜煤进行了光催化氧化研究。探讨了氧化时间对氧化煤中腐植酸含量的影响。通过溶剂抽提,FTIR分析及GC/MS分析对神府镜煤光氧化产物进行了组成和结构分析。研究表明:控制光氧化时间,可以获得不同腐植酸含量的光氧化产物,在光氧化4 h时,镜煤中腐植酸含量最高;镜煤在光氧化产物过程中,芳香结构较难打开,主要是醚键等含氧官能团发生反应,生成羧基和甲基等。

The photo-oxidation of Shenfu vitrain was investigated using ultra-violet radiation with oxygen. The effect of oxidation time on the humie acid content of photo-oxidation produet was discussed,the composition and structural parameters of the photo-oxidation products were character/zeal by means of solvent extraction, FTIR analysis, and GC/MS analysis. The result showed that different photo-oxidation product can be obtained by eontrolling photo-oxidation time at 4 h, the humie acid content in the vitrain is highest. The aromatic strueture was difficult to break. The mainly reason from the reaction of the oxygen-con- taining functional group during the photo-oxidation process.