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Access in mesoporous materials: Advantages of a uniform pore structure in the design of a heavy metal ion adsorbent for environmental remediation
Author(s) -
Mercier Louis,
Pinnavaia Thomas J.
Publication year - 1997
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19970090611
Subject(s) - materials science , environmental remediation , adsorption , mesoporous material , mesoporous silica , metal , molecular sieve , chemical engineering , metal ions in aqueous solution , surface modification , sieve (category theory) , nanotechnology , organic chemistry , metallurgy , contamination , chemistry , ecology , mathematics , combinatorics , engineering , biology , catalysis
The access of guest species to the binding sites of adsorbent determines the metal‐binding capacity of materials, which is important for example in environmental remediation efforts. It is shown that MP‐HMS, the mercaptopropylsilane‐functionalized derivative of the molecualr sieve HMS, with its regular pore structure is a much better Hg 2⊕ absorbent than silica gels, in which functionalization leads to pore blocking (see Figure).