摘要
本文根据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）表面羟基的酸碱特性，描述了其表面羟基存在形态随pH变化特征，并研究了据零电荷点定义直接由表面羟基分布曲线测定固体颗粒零电荷点pHpzc的新方法，与传统测定零电荷点的方法相比结果相当一致，从而为研究海洋固体颗粒表面化学反应奠定了基础。
In this paper, the distribution of surface hydroxyl group with pH, attributed to surface acidbasc Properties of main inorganic component of marine particulate matters (such as clays, oxides and calcium carbonate) is presented. On the basis of point of definition for zero charge pHpzc, a new method for determining pHpzc is developed. The values of pHpzc obtained from this method are consistent with those from the traditional method , by which pH is determined from the intersec tion of acid-bace titration curve with varying ionic strength electrolyte. This is the advantage of the studies on surface reaction of marine particulate matters.
出处
《海洋湖沼通报》
CSCD
北大核心
1996年第4期28-34,共7页
Transactions of Oceanology and Limnology
基金
国家自然科学基金!49376271
关键词
海洋
固体颗粒
表面羟基
悬浮颗粒
形态分布
Marine particulate matters,surface hydroxyl group,the point of zero charge pH_(pzc)
