摘要
在不同pH下泥煤多次吸附镍,用傅立叶变换红外光谱(FTIR)研究了泥煤与镍元素作用前后的光谱特征.结果表明,pH对泥煤的影响较大;泥煤的红外光谱与腐植酸相似;泥煤与镍元素结合后的红外光谱中归属于1711cm-1的羧酸二聚体吸收峰减小甚至消失,同时归属于COO-的1610cm-1和1410cm-1处的振动吸收增强,说明泥煤中的羧基与镍离子发生了配合作用,且大部分是双齿结构.
Adsorbed nickel by peat repeatedly at varies pH. Fourier transform infrared spectrometry was used to obtain the structural and compositional information on peat and peat- Ni. Results showed that pH effect on the adsorption was the most important factor. FTIR spectra of peat were similar to humic acid. The peak （1 711 cm^-1） in FTIR spectra of peat became weaken after adsorption, however the peaks （1 610 cm^-1, 1 410 cm^-1） became strong after adsorption. It implied that carboxyl groups of peat reacted with nickel. The mostly complexes are bidentate complexes.
出处
《煤炭转化》
CAS
CSCD
北大核心
2006年第4期60-63,68,共5页
Coal Conversion
基金
核资源与环境教育部重点实验室基金资助项目(051104)
东华理工学院博士基金资助项目(DHB0504).
关键词
泥煤
镍
傅立叶变换红外光谱
peat, nickel, Fourier transform infrared spectra
