期刊
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
卷 7, 期 7, 页码 7353-7361出版社
AMER CHEMICAL SOC
DOI: 10.1021/acssuschemeng.9b00567
关键词
Microporous materials; Covalent triazine networks; Thioether functionalized material; Mercury removal; Recyclable adsorbent
资金
- CSIR, New Delhi
- DST, New Delhi
Hg/Hg(II) have been recognized as being highly poisonous to humans as they cause severe health and environmental problems. Designing a suitable adsorbent decorated with an abundance of accessible chelating sites at the solid surface together with high affinity for heavy metals is a big challenge to overcoming mercury contamination. Here we report a new thioether-functionalized covalent triazine nanosphere, SCTN-1, which has been employed as a highly efficient adsorbent for the removal of toxic mercury from contaminated water with an excellent adsorption performance of 1253 and 813 mg g(-1) for Hg2+ and Hg(0) respectively, which largely outperforms several recently reported thiol and thioether-functionalized adsorbents. Our kinetic studies suggest that SCTN-1 showed the fastest adsorption rate for the removal of mercury from aqueous solutions among all adsorbents known until date. Based on its adsorption performance and high recycling efficiency, this thio-functionalized nanoporous polymeric material has huge potential to be explored in environmental remediation.
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