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Type: Journal article
Title: Nitrogen- and sulfur-codoped hierarchically porous carbon for adsorptive and oxidative removal of pharmaceutical contaminants
Author: Tian, W.
Zhang, H.
Duan, X.
Sun, H.
Tade, M.
Ang, H.
Wang, S.
Citation: ACS Applied Materials and Interfaces, 2016; 8(11):7184-7193
Publisher: American Chemical Society
Issue Date: 2016
ISSN: 1944-8244
Statement of
Wenjie Tian, Huayang Zhang, Xiaoguang Duan, Hongqi Sun, Moses O. Tade, Ha Ming Ang, and Shaobin Wang
Abstract: Heteroatom (nitrogen and sulfur)-codoped porous carbons (N-S-PCs) with high surface areas and hierarchically porous structures were successfully synthesized via direct pyrolysis of a mixture of glucose, sodium bicarbonate, and thiourea. The resulting N-S-PCs exhibit excellent adsorption abilities and are highly efficient for potassium persulfate activation when employed as catalysts for the oxidative degradation of sulfachloropyridazine (SCP) solutions. The adsorption capacities of N-S-PC-2 (which contains 4.51 atom % nitrogen and 0.22 atom % sulfur and exhibits SBET of 1608 m² g⁻¹) are 73, 7, and 3 times higher than those of graphene oxide, reduced graphene oxide, and commercial single-walled carbon nanotube, respectively. For oxidation, the reaction rate constant of N-S-PC-2 is 0.28 min⁻¹. This approach not only contributes to the large-scale production and application of high-quality catalysts in water remediation but also provides an innovative strategy for the production of heteroatom-doped PCs for energy applications.
Keywords: Sulfur and nitrogen codoping; persulfate; antibiotics; porous carbon; adsorption
Description: Published: March 3, 2016
Rights: © 2016 American Chemical Society
RMID: 0030095317
DOI: 10.1021/acsami.6b01748
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Appears in Collections:Chemical Engineering publications

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