期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 18, 页码 9758-9766出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b01624
关键词
graphene; alpha-FeOOH nanoparticles; aerogel; adsorption; arsenic
资金
- Australian Research Council [FT110100711]
- University of Adelaide, School of Chemical Engineering
- Valence Industries, Ltd.
- Archer Exploration, Ltd.
- Ministry of Education and Science, Republic of Serbia [172030]
- Australian Research Council [FT110100711] Funding Source: Australian Research Council
Arsenic (As) is the world's most hazardous chemical found in drinking water of many countries; therefore, there is an urgent need for the development of low-cost adsorbents for its removal. Here, we report a highly versatile and synthetic route for the preparation of a three-dimensional (3D) graphene-iron oxide nanoparticle aerogel composite for the efficient removal of As from contaminated water. This unique three-dimensional (3D) interconnected network was prepared from natural graphite rocks with a simple reaction, without the use of harsh chemicals, which combines with the exfoliation of graphene oxide (GO) sheets via the reduction of ferrous ion to form a graphene aerogel composite decorated with iron oxide nanoparticles. The prepared adsorbent showed outstanding absorption performance for the removal of As from contaminated water, because of its high surface-to-volume ratio and characteristic pore network in the 3D architecture. The performed case study using real drinking water contaminated with As under batch conditions showed successful removal of arsenic to the concentration recommended by the World Health Organisation (WHO).
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