期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 28, 期 1, 页码 711-723出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-020-10473-0
关键词
KOH; Spent bleaching earth; Carbonizing; Activating; Pb(II); Mechanisms
资金
- Natural Science Foundation of Jiangsu Province [BK20161329]
- Jiangsu Higher Institutions Key Basic Research Projects of Natural Science [18KJA430003]
- Technology Support Plan of Changzhou [CE 20185031]
- Postgraduate Research& Practice Innovation Programof Jiangsu Province [SJCX19_0689]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
BE/C-A750-1/1, prepared by carbonizing and activating, shows good adsorption capacity for Pb(II). Adsorption and desorption studies indicate that its performance remains stable after multiple cycles.
BE/C-A750-1/1 is prepared by carbonizing SBE and then activating with KOH. BE/C-A750-1/1 has good adsorption capacity for Pb(II), and the adsorption capacity for Pb(II) is 206.65 mg/g. The harmful effects of coexisting cations are listed in ascending order: K+ < Na+< Mg2+. Adsorption and desorption studies show that the adsorption capacity of BE/C-A750-1/1 for Pb(II) after adsorption and desorption 3 times is 183.62 mg/g. The adsorption mechanism mainly includes electrostatic attraction, ion exchange, physical adsorption, and chemical complexation. This suggests that activated BE/C may be a promising candidate for removing Pb(II) from industrial wastewater.
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