Characterizations of humic acid isolated from coals of two Nagaland Coalfields of India in relation to their origin

被引：32

作者：

Das, Tonkeswar ^{[1
]}

Saikia, B. K. ^{[1
]}

Baruah, B. P. ^{[1
]}

Das, Dhrubajyoti ^{[2
]}

机构：

[1] CSIR, North East Inst Sci & Technol, Coal Chem Div, Jorhat 785006, Assam, India

[2] CSIR, North East Inst Sci & Technol, Div Biotechnol, Jorhat 785006, Assam, India

来源：

JOURNAL OF THE GEOLOGICAL SOCIETY OF INDIA | 2015年 / 86卷 / 04期

关键词：

Humic acid; Coal; Spectroscopy; Thermal analysis; OLIGOCENE COALS; FT-IR; ASSAM;

D O I：

10.1007/s12594-015-0334-0

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In the present study, the humic acid isolated from coals of two coalfields of Nagaland, India has been characterized by Ultraviolet-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD), thermal analysis (TGA-DTA), and scanning electron microscopy (SEM) in relation to their origin. The humic acid reveals a high degree of humification with predominantly aromatic content, which is considered to be type-A humic acid.

引用

页码：468 / 474

页数：7