Controlled synthesis of silkworm cocoon-like α-Fe2O3 and its adsorptive properties for organic dyes and Cr(VI)
Article
Article Title | Controlled synthesis of silkworm cocoon-like α-Fe2O3 and its adsorptive properties for organic dyes and Cr(VI) |
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ERA Journal ID | 4969 |
Article Category | Article |
Authors | Liu, Hua, Wang, Zumin, Li, Haiyan, Wang, Hao and Yu, Ranbo |
Journal Title | Materials Research Bulletin |
Journal Citation | 100, pp. 302-307 |
Number of Pages | 6 |
Year | 2018 |
Publisher | Elsevier |
Place of Publication | United Kingdom |
ISSN | 0025-5408 |
1873-4227 | |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.materresbull.2017.12.030 |
Web Address (URL) | https://www.sciencedirect.com/science/article/pii/S0025540817342502 |
Abstract | Industrial wastewater containing both organic and inorganic pollutants is being generated all the time. Efficient materials are highly needed to purify the polluted water. Thus, a hierarchical structured α-Fe2O3 with excellent adsorptive property has been synthesized by using a facile hydrothermal method. It can be prepared in macroscopic quantity. The as-synthesized α-Fe2O3 with silkworm cocoon-like morphology shows high efficiency in adsorbing Congo red (CR), Methyl orange (MO) and Cr(VI). The removal efficiency of CR, MO and Cr(VI) can reach 99.2%, 83.9% and 100% under appropriate conditions. Besides, this α-Fe2O3 shows high adsorptive ability for mixed CR and Cr(VI) in aqueous solution and the final removal rates can reach 94.7% and 97.9%, respectively. The adsorption kinetics fits well with the pseudo-second-order kinetic model. The results indicate that the product may find potential application in purification of wastewater containing both organic and inorganic pollutants. |
Keywords | Hydrothermal synthesis; Adsorption; Organic dyes; Kinetics; Cr(VI) |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 401602. Composite and hybrid materials |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | University of Science and Technology Beijing, China |
Beijing University of Civil Engineering and Architecture, China | |
Centre for Future Materials |
https://research.usq.edu.au/item/zqvqy/controlled-synthesis-of-silkworm-cocoon-like-fe2o3-and-its-adsorptive-properties-for-organic-dyes-and-cr-vi
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