Koo, Hye Young Lee, Ha-Jin Go, Hye-Ah Lee, Young Boo Bae, Tae Sung Kim, Jun Kyung Choi, Won San 2024-01-20T18:01:33Z 2024-01-20T18:01:33Z 2021-09-02 2011-01 0947-6539 https://pubs.kist.re.kr/handle/201004/130786 We report the synthesis of graphenes with tunable properties due to the growth of needlelike iron oxide (IO) nanoparticles on their surfaces. The electrical conductivity, flexibility, and magnetic properties of graphene nanosheets (GNSs) could be tuned on demand by fine controlling both the surface coverage and the length of the IO nanoneedles. The degree of coverage of the IO nanoparticles on the surface of the GNSs made it possible to control the resulting properties of the IO/GNSs on demand. As examples of their utility, paperlike materials were generated by simple filtration, and the resulting IO/GNS nanocomposites showed extraordinary removal capacity and fast adsorption rates for As' and Cr-VI ions in water. Another possible application is the preparation of multifunctional films equipped with conductivity, flexibility, and magnetic properties. The fabrication process is easy to scale up at a low cost. In addition, both the colloidal solution and film forms of the resulting IO/GNSs were effective for removal of heavy metal ions, meaning this material could be utilized for actual industrial applications. English WILEY-V C H VERLAG GMBH NANOPARTICLES TRANSPARENT FILMS Graphene-Based Multifunctional Iron Oxide Nanosheets with Tunable Properties Article 10.1002/chem.201002252 1 CHEMISTRY-A EUROPEAN JOURNAL, v.17, no.4, pp.1214 - 1219 CHEMISTRY-A EUROPEAN JOURNAL 17 4 1214 1219 scie scopus 000287562300018 2-s2.0-78751631773 Chemistry, Multidisciplinary Chemistry Article NANOPARTICLES TRANSPARENT FILMS graphene graphene composites iron oxide nanoparticles surface chemistry