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- Title
Removal Performance and Mechanism of Benzo(b)Fluorathene Using MnO 2 Nanoflower/Graphene Oxide Composites.
- Authors
Cao, Qingqing; Lu, Siqi; Yin, Wenjun; Kang, Yan; Yang, Naihao; Hou, Yudong; Guo, Zizhang
- Abstract
High-ring polycyclic aromatic hydrocarbons (PAHs, Benzo[b]fluorathene (BbFA), etc.) are difficult to biodegrade in the water environment. To address this issue, an innovative method for the preparation of MnO2 nanoflower/graphene oxide composite (MnO2 NF/GO) was proposed for adsorption removal of BbFA. The physicochemical properties of MnO2 NF/GO were characterized by SEM, TEM, XRD, and N2 adsorption/desorption and XPS techniques. Results show that the MnO2 NF/GO had well-developed specific surface area and functional groups. Batch adsorption experiment results showed that adsorption capacity for BbFA was 74.07 mg/g. The pseudo-second-order kinetic model and Freundlich isotherm model are fitted well to the adsorption data. These show electron-donor-acceptor interaction; especially π-π interaction and π complexation played vital roles in BbFA removal onto MnO2 NF/GO. The study highlights the promising potential adsorbent for removal of PAHs.
- Subjects
POLYCYCLIC aromatic hydrocarbons; GRAPHENE oxide; ADSORPTION capacity; FUNCTIONAL groups
- Publication
Materials (1996-1944), 2021, Vol 14, Issue 16, p4402
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma14164402