期刊
SEPARATION SCIENCE AND TECHNOLOGY
卷 51, 期 9, 页码 1499-1508出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01496395.2016.1166135
关键词
Amidinothiourea; chelating resin; selective sorption; desorption; mercury pollution
资金
- Key Project of Science Basic Research Program of Shaanxi Province [2015JZ014]
- Science & Technology Innovation Project of Shaanxi Province [S2016TLGY0034, 508194250435]
A novel chelating resin bearing amidinothiourea (ADTU) moieties was prepared by chloroethyl crosslinked polystyrene (CMPS) with ADTU in the presence of a phase transfer catalyst. Fourier transform infrared spectra (FT-IR) and scanning electron microscopy (SEM) were used to characterized the resulting chelating resin. The saturated adsorption capacity of Hg(II) ions estimated from the Langmuir model was up to 1215 mg g(-1)at 313 K. Furthermore, the resin was able to selectively separate Hg(II) from multicomponent solutions with Cd(II), Co(II), Cu(II), Zn(II), Mg(II) and Pb(II). The desorption process showed the mercury recovery reached to 99.2% under eluting condition of 1 M HCl + 8% thiourea.
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