摘要
本文研究了氧化物对土壤、粘土和合成无定形铝硅酸盐的表面电荷的贡献。结果表明,水合氧化物型表面可进一步区分为电荷性质完全不同的两类亚表面。在所研究的样本中,氧化铁和氧化铝是带可变正电荷的亚表面,而氧化硅是带可变负电荷的亚表面。
The present paper deals with the contribution of hydrous oxides to surface charges of soils, clays and synthetic amorphous aluminosilicates. The results of experiments showed that hydrous oxide-type surfaces could be divided into two sub-groups which had totally different surface charge characteristics. In the studied samples, iron and aluminium oxide were pH-dependent positive charge surface, silica was pH-dependent negative charge surface.
出处
《土壤学报》
CAS
CSCD
北大核心
1990年第2期159-165,共7页
Acta Pedologica Sinica
基金
中国科学院科学基金
