摘要
应用FTIR光谱技术系统测定了海洋固体颗粒主要无机组份(包括粘土、金属氧化物和碳酸钙)在2500～4000cm^(-1)范围内的红外光谱。着重研究了这些海洋固体颗粒的表面自由羟基、表面氢键羟基和结构羟基的伸缩振动红外吸收峰及其特征。
The paper systematically measures the FTIR spectra of the main inorganic components of marine solid particles (such as clays, oxides and calcium carbonate) in the range of 2500 -4000cm-1. The FTIR spectra of vOH show that illite and kaoli- nite have four kinds of infrared absorption bands of surface free hydroxyl group (vOH(SFHG)) and one kind of surface H -bonding hydroxyl group (vOH(SHHG)) ; montmo-rillonite, CaCO3 and SiO2 have one kind of vOH(SFHG) and vOH(SHHG) respectively; δ-MnO2 and manganite have only one kind of vOH(SHHG); γ ?AlOOH has one kind of vOH(SHHG) and infrared absorption band of framework hydroxyl group (vOH(FHG)); while geothite and amorphous ferric oxide have one kind of intense and broad band of vOH(FHG) , which probably covers their infrared absorption band of vOH(SHHG).
