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High-Density Three-Dimension Graphene Macroscopic Objects for High-Capacity Removal of Heavy Metal Ions
Open accessAbstract
The chemical vapor deposition (CVD) fabrication of high-density three-dimension graphene macroscopic objects (3D-GMOs) with a relatively low porosity has not yet been realized, although they are desirable for applications in which high mechanical and electrical properties are required. Here, we explore a method to rapidly prepare the high-density 3D-GMOs using nickel chloride hexahydrate (NiCl₂·6H₂O) as a catalyst precursor by CVD process at atmospheric pressure. Further, the free-standing 3D-GMOs are employed as electrolytic electrodes to remove various heavy metal ions. The robust 3D structure, high conductivity (~12 S/cm) and large specific surface area (~560 m²/g) enable ultra-high electrical adsorption capacities (Cd²⁺ ~ 434 mg/g, Pb²⁺~ 882 mg/g, Ni²⁺ ~ 1,683 mg/g, Cu²⁺ ~ 3,820 mg/g) from aqueous solutions and fast desorption. The current work has significance in the studies of both the fabrication of high-density 3D-GMOs and the removal of heavy metal ions.
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Cited by
3D Graphene‐Based H2‐Production Photocatalyst and Electrocatalyst
Kuang, P., Sayed, M., Fan, J., Cheng, B., & Yu, J. (2020) · Advanced Energy Materials · doi:10.1002/aenm.201903802 · Cited by 302
Metadata
- Authors
- Li, W., Gao, S., Wu, L., Qiu, S., Guo, Y., Geng, X., Chen, M., Liao, S., Zhu, C., Gong, Y., Long, M., Xu, J., Wei, X., Sun, M., & Liu, L.
- Venue
- Scientific Reports
- Published
- 2013-07-03
- Volume
- 3
- Issue
- 1
- Pages
- 2125-2125
- ISSN
- 2045-2322 (ISSN-L)
- OpenAlex
- W2166501566
- Cited by
- 161
- References
- 0
- FWCI
- 15.89
- Type
- journal article
- Language
- en
- Open access
- gold
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- Li, W., Gao, S., Wu, L., Qiu, S., Guo, Y., Geng, X., Chen, M., Liao, S., Zhu, C., Gong, Y., Long, M., Xu, J., Wei, X., Sun, M., & Liu, L. (2013). High-Density Three-Dimension Graphene Macroscopic Objects for High-Capacity Removal of Heavy Metal Ions. Scientific Reports. https://doi.org/10.1038/srep02125
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