- Title
- A magnetically recoverable Fe₃O₄-NH₂-Pd sorbent for capture of mercury from coal derived fuel gas
- Creator
- Han, Lina; Li, Qinglian; Chen, Shuai; Xie, Wei; Bao, Weiren; Chang, Liping; Wang, Jiancheng
- Relation
- Scientific Reports Vol. 7, no. 7448
- Publisher Link
- http://dx.doi.org/10.1038/s41598-017-07802-8
- Publisher
- Nature Publishing Group
- Resource Type
- journal article
- Date
- 2017
- Description
- A sort of magnetical material named Fe₃O₄-NH₂-Pd was prepared by loading varying amounts of immobilizing Pd on the surface of the magnetic Fe₃O₄-NH₂ microspheres. This magnetical material was used firstly for capturing Hg° from coal derived fuel gas based on its recoverability. The experimental results showed that the loading Pd on the amine-functionalized magnetite nanoparticles can greatly improve the efficiency of removing Hg° at a high temperature range between 200 and 300 °C. The magnetic Fe₃O₄-NH₂-Pd sorbent with 5% Pd loaded exhibited significantly high activity and stability in capturing Hg°, affording over 93% capture efficiency at 200 °C for more than 8 hrs. Compared to the Fe₃O₄-NH₂ sorbent that converted the Hg° as HgS, this Fe₃O₄-NH₂-Pd sorbent can remove the Hg° by forming Pd-Hg amalgam and HgS. In addition, the experimental tests indicated that the as-synthesized Fe₃O₄-NH₂-Pd sorbent still showed stable magnetic properties after two regeneration cycles in removing Hg°, which provided the opportunity for preparing a recyclable sorbent which can be easily separated and recovered for Hg° removal.
- Subject
- nanoscience and technology; pollution remediation; coal derived fuel gas; mercury
- Identifier
- http://hdl.handle.net/1959.13/1351947
- Identifier
- uon:30802
- Identifier
- ISSN:2045-2322
- Rights
- This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
- Language
- eng
- Full Text
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