Rattle-type magnetic mesoporous hollow carbon as a high-performance and reusable adsorbent for water treatment

Kalantari, Mohammad, Yu, Meihua, Noonan, Owen, Song, Hao, Xu, Chun, Huang, Xiaodan, Xiang, Feixiang, Wang, Xiaolin and Yu, Chengzhong (2017) Rattle-type magnetic mesoporous hollow carbon as a high-performance and reusable adsorbent for water treatment. Chemosphere, 166 109-117. doi:10.1016/j.chemosphere.2016.09.083


Author Kalantari, Mohammad
Yu, Meihua
Noonan, Owen
Song, Hao
Xu, Chun
Huang, Xiaodan
Xiang, Feixiang
Wang, Xiaolin
Yu, Chengzhong
Title Rattle-type magnetic mesoporous hollow carbon as a high-performance and reusable adsorbent for water treatment
Journal name Chemosphere   Check publisher's open access policy
ISSN 1879-1298
0045-6535
Publication date 2017-01-01
Year available 2016
Sub-type Article (original research)
DOI 10.1016/j.chemosphere.2016.09.083
Open Access Status Not yet assessed
Volume 166
Start page 109
End page 117
Total pages 9
Place of publication Kidlington, Oxford, United Kingdom
Publisher Pergamon Press
Language eng
Abstract Rattle-type magnetic mesoporous hollow carbon (RMMHC) materials have shown great promise as adsorbents for water treatment. In this work, we report a surfactant-free synthesis of RMMHC nanoparticles (NPs) using magnetite NPs as the core, tetrapropyl orthosilicate, resorcinol and formaldehyde to form the shell followed by carbonization and selective silica etching. The pore size, specific surface area and pore volume of RMMHC NPs can be tuned by varying the carbonization temperature (500, 700 and 900 °C). At the optimized temperature of 700 °C, the RMMHC NPs possess the highest specific surface area of 579 m(2) g(-1), the largest pore volume of 0.795 cm(3) g(-1), and the largest pore size of 7.6 nm among all three samples. The adsorption capacity of optimized RMMHC NPs towards di (2-ethylhexyl) phthalate (a model organic pollutant) reaches as high as 783.1 mg g(-1). Taking advantage of the magnetic property, the adsorbents retain more than 87% of their initial adsorption capacity over five times' reuse.
Formatted abstract
Rattle-type magnetic mesoporous hollow carbon (RMMHC) materials have shown great promise as adsorbents for water treatment. In this work, we report a surfactant-free synthesis of RMMHC nanoparticles (NPs) using magnetite NPs as the core, tetrapropyl orthosilicate, resorcinol and formaldehyde to form the shell followed by carbonization and selective silica etching. The pore size, specific surface area and pore volume of RMMHC NPs can be tuned by varying the carbonization temperature (500, 700 and 900 °C). At the optimized temperature of 700 °C, the RMMHC NPs possess the highest specific surface area of 579 m2 g−1, the largest pore volume of 0.795 cm3 g−1, and the largest pore size of 7.6 nm among all three samples. The adsorption capacity of optimized RMMHC NPs towards di (2-ethylhexyl) phthalate (a model organic pollutant) reaches as high as 783.1 mg g−1. Taking advantage of the magnetic property, the adsorbents retain more than 87% of their initial adsorption capacity over five times' reuse.
Keyword Adsorption
Magnetic
Mesoporous carbon
Organic pollutant
Waste water
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID

Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: HERDC Pre-Audit
Australian Institute for Bioengineering and Nanotechnology Publications
 
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