Open AccessMicrostructure Analysis of Attapulgite Clay Minerals
Author(s) -
Jie Cheng,
Lei Ge,
Jing Wei,
Tingting Meng
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/440/2/022066
Subject(s) - clay minerals , microstructure , passivation , porosity , environmental remediation , scanning electron microscope , fractal dimension , materials science , soil water , mineralogy , palygorskite , metallurgy , geology , nanotechnology , fractal , composite material , soil science , contamination , layer (electronics) , ecology , mathematical analysis , mathematics , biology
Land is the foundation of human being. However, with the rapid development of human society, soil is no longer clean, and soil remediation is imminent. Passivation of heavy metals in soils by passivates is a relatively economical, rapid and reasonable treatment measure. In this paper, the microstructure of attapulgite clay minerals and acid-modified attapulgite clay minerals are qualitatively and quantitatively analyzed by scanning electron microscopy. The results show that the attapulgite clay minerals have rough micro-surface, more synapses on the surface after modification, higher porosity, higher pore fractal dimension, larger probability entropy, and larger passivation potential of heavy metals.