Nitrogen- and Sulfur-Codoped Hierarchically Porous Carbon for Adsorptive and Oxidative Removal of Pharmaceutical Contaminants.
Nitrogen- and Sulfur-Codoped Hierarchically Porous Carbon for Adsorptive and Oxidative Removal of Pharmaceutical Contaminants.
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DOI：
10.1021/acsami.6b01748
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发表时间：
2016-03
影响因子：
9.5
通讯作者：
Wenjie Tian;Huayang Zhang;Xiaoguang Duan;Hongqi Sun;M. Tadé;H. Ang;Shaobin Wang
中科院分区：
文献类型：
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作者：
Wenjie Tian;Huayang Zhang;Xiaoguang Duan;Hongqi Sun;M. Tadé;H. Ang;Shaobin Wang
以葡萄糖、碳酸氢钠和硫脲为原料，采用直接热解法制备了具有高比表面积和多孔结构的氮硫杂原子共掺杂多孔炭(N-S-PCS)。结果表明，N-S-聚碳酸酯具有良好的吸附性能和高效的过硫酸钾活化能力，用于催化氧化降解磺氯吡嗪溶液。N-S-PC-2(含氮4.51原子%，硫0.22原子%，比表面积1608m(2)g(-1))的吸附容量分别是氧化石墨烯、氧化石墨烯和商品单壁碳纳米管的73、7和3倍。N-S-PC-2的氧化反应速率常数为0.28min(-1)。这种方法不仅有助于高质量催化剂的大规模生产和在水修复中的应用，而且为生产用于能源应用的杂原子掺杂PC提供了一种创新的策略。
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 m(2) 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.