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A Polymerization‐Cutting Strategy: Self‐Protection Synthesis of Thiol‐Based Nanoporous Adsorbents for Efficient Mercury Removal
Author(s) -
Xu Yang,
Wang Tianqi,
He Zidong,
Zhou Minghong,
Yu Wei,
Shi Buyin,
Huang Kun
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201802378
Subject(s) - nanoporous , polymerization , adsorption , mercury (programming language) , thiol , chelation , metal ions in aqueous solution , chemistry , chemical engineering , materials science , combinatorial chemistry , metal , nanotechnology , polymer , organic chemistry , computer science , engineering , programming language
Highly toxic heavy metal ions such as mercury ions (Hg 2+ ) are a great threat to human life and the environment. Developing new strategies and materials to remove the toxic heavy metal ions has attracted more and more attentions. Herein a facile self‐protection synthesis of thiol‐based nanoporous adsorbents for efficient mercury removal via a polymerization‐cutting strategy is reported. The direct free‐radical polymerization of divinyl disulfide derivative and subsequently cutting off the disulfide linkage, without post‐synthesis or modification, can give rise to an exceptionally high density of thiol chelating sites. Moreover, the resultant thiol‐based nanoporous adsorbents (NAs‐SH) exhibit a high saturation uptake capacity (1240 mg g −1 ) and reused ability for mercury removal from water solution. The proposed polymerization‐cutting strategy may provide an alternative and cost‐effective method for the design and synthesis of various efficient nanoporous adsorbents at large scale in the future.