Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 11, Issue 13, Pages 12920-12930Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b20557
Keywords
carbon nanotube-based adsorbents; cross-linking; water treatment; organic pollutants; adsorption capacity
Funding
- University of Trieste, Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Ministero dell'Universita e della Ricerca (MIUR) (FIRB) [RBAP11ETKA]
- University of Trieste, Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali (INSTM), Ministero dell'Universita e della Ricerca (MIUR) (Cofin.) [2010N3T9M4]
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The development of carbon-based membrane adsorbent materials for water treatment has become a hot topic in recent years. Among them, carbon nanotubes (CNTs) are promising materials because of its large surface area, high aspect ratio, great chemical reactivity, and low cost. In this work, free-standing CNT adsorbents are fabricated from chemically cross-linked single-walled CNTs. We have demonstrated that by controlling the degree of cross-linking, the nanostructure, porous features, and specific surface area of the resulting materials can be tuned, in turn allowing the control of the adsorption capacities and the improvement of the adsorption performance. The cross-linked CNT adsorbents exhibit a notably selective sorption ability and good recyclability for removal of organics and oils from contaminated water.
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