摘要
本文借助X—光电子能谱、X—射线衍射等现代分析技术,研究了棉粘胶基活性碳纤维(CACF)对水溶液中HgCl_2的吸附特征。结果表明,CACF表面具有氧化—还原性质;CACF对水溶液申HgCl_2的吸附历程是包括氧化—还原反应、沉淀吸附、络合平衡、离子交换等的综合平衡过程;CACF对Hg_2Cl_2的吸附是多分子层的结晶吸附,吸附力不仅是色散力,而且包括晶格力。有利于结晶生成的因素将有利于吸附。
In this paper, the adsorption of HgCl_2 in aqueous solution on cotton-based activated carbon fibers (CACF) were investigated by means of ESCA, X-ray diffraction and so on. The experimental results show that a redox reaction can occur on the surface of CACF. The adsorption process of HgCl_2 in aqueous solution on CACF includes the redox reaction, precipitate, complex equilibrium, ion exchange and so on. The adsorption forces involve not only London force but also the attractive force of crystal lattices. The conditions which are of advantage for the growing of crystal are of advantage for adsorption.
出处
《水处理技术》
CAS
CSCD
北大核心
1989年第3期132-138,共7页
Technology of Water Treatment
