Study on the influence of the macerals in Shenfu coals modified by acetone under photocatalysis on wettability
-
摘要: 研究了光催化作用下丙酮对不同煤岩组分表面改性的作用，分析了改性时间对神府丝炭和神府镜煤表面性质的影响，为建立增大煤岩组分表面性质差异的新方法提供理论依据。光催化作用下丙酮改性可以明显改变煤岩组分表面性质，改性时间为3min时，神府丝炭和神府镜煤润湿性差异最大。改性后煤岩组分表面C－O、C=O和COO－等含氧官能团含量发生了变化，且神府丝炭表面C=O和COO－含量的变化较神府镜煤更为明显。Abstract: The effect of the modification with acetone under photocatalysis on the surface of macerals was studied, which aimd to find the method to enlarge the difference of the surface wettability of macerals. The influence of the modification time on the surface wettability and structure of Shenfu fusain and vitrain was researched. The results showed that the modification could obviouly change the surface properties of macerals. There was the biggest difference of wettability between Shenfu fusain and vitrain under the modification for 3min. The mainly changing surface groups in the modification process were C－O, C=O, COO－, etc. Moreover, the change of the contents of C=O and COO－ on the surface of Shenfu fusain were more obviously than Shenfu vitrain.
-
Key words:
- photocatalysis /
- modification /
- maceral /
- wettability
-
点击查看大图
计量
- 文章访问数: 2202
- HTML全文浏览量: 18
- PDF下载量: 873
- 被引次数: 0
下载:
