2017
DOI: 10.1021/acsami.6b15106
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Highly Efficient Magnetic Nitrogen-Doped Porous Carbon Prepared by One-Step Carbonization Strategy for Hg2+ Removal from Water

Abstract: Hydrophilic magnetic N-doped porous carbon composites (MNPCs) with high special surface areas and rich nitrogen content was prepared via simple one-step carbonization of zinc oxide nanoparticles (ZnO NPs), 2-methylimidazole (HmIm), and FeO@SiO magnetic nanoparticles (MNPs) mixture directly. During the carbonization process, ZnO NPs directly reacts with HmIm to yield porous ZIF-8 while the MNPs are incorporated into the frameworks to generate magnetic metal-organic frameworks (MFCs), and the MFCs acts as a self… Show more

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Cited by 68 publications
(23 citation statements)
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“…The calculated maximum adsorption capacity (495 mg g –1 ) from Langmuir isotherm model is very close to the experimental value. Compared with MNPC-T700-M3 that was reported in our previous work, the N-MPCs prepared here via one-pot pyrolysis exhibit better dispersion (e.g., without aggregation), lower cost, as well as easier preparation process (MNPs were required to be prepared first for MNPC-T700-M3). What’s more, N-MPC-700-7/3 with lower surface area (406 versus 653 m 2 g –1 ) and similar N content (12.8 versus 12.9 wt %) exhibited improved adsorption performance for Hg 2+ , which is probably due to the fact that their chemical forms of N are different.…”
Section: Results and Discussionmentioning
confidence: 81%
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“…The calculated maximum adsorption capacity (495 mg g –1 ) from Langmuir isotherm model is very close to the experimental value. Compared with MNPC-T700-M3 that was reported in our previous work, the N-MPCs prepared here via one-pot pyrolysis exhibit better dispersion (e.g., without aggregation), lower cost, as well as easier preparation process (MNPs were required to be prepared first for MNPC-T700-M3). What’s more, N-MPC-700-7/3 with lower surface area (406 versus 653 m 2 g –1 ) and similar N content (12.8 versus 12.9 wt %) exhibited improved adsorption performance for Hg 2+ , which is probably due to the fact that their chemical forms of N are different.…”
Section: Results and Discussionmentioning
confidence: 81%
“…N-MPCs were prepared via the modified pyrolysis method . In a typical synthesis process, a mixture of HmIm (11.0 mmol), Co­(OH) 2 (2.5 mmol), and ZnO NPs (2.5 mmol) were sealed in a quartz tube after uniform grinding.…”
Section: Experimental Sectionmentioning
confidence: 99%
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“…Additional weight loss of HMGO‐PAMAM‐G1.0 could be due to the degradation of low‐generation PAMAM dendrimers grafted onto the HMGO‐NH 2 . The third stage starts around 650°C and ends at 800°C, the obvious weight loss of HMGO‐NH 2 attributes to the removal of carbon oxidation of GO . The corresponding DTA curve (Fig.…”
Section: Resultsmentioning
confidence: 99%
“…surfaces for environmental contaminant removal from polluted water. 25,26 For example, polypyrrole-rGO, chitosan-rGO and SH-GO/Fe 3 O 4 nanocomposite have been used as new heavy metal ion adsorbents. [27][28][29][30] In particular, graing a target polymer onto the surface of GO is an effective way to improve the performance of graphene.…”
mentioning
confidence: 99%