Solid–solid grinding/templating route to magnetically separable nitrogen-doped mesoporous carbon for the removal of Cu2+ ions

Chen, Aibing; Yu, Yan; Zhang, Yue; Xing, Tingting; Wang, Yanyan; Zhang, Yexin; Zhang, Jian

doi:10.1016/j.jhazmat.2014.07.011

Cited by 22 publications

(4 citation statements)

References 46 publications

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“…2 , the Langmuir model with higher correlation coefficients and lower values of the average relative error (ARE), gave a better fit to the equilibrium data than the Freundlich model, suggesting that the existence of homogeneous active sites within the adsorbent and the monolayer adsorption of Cu(II) on P-MMC 31 37 41 . Moreover, P-MMC showed the highest maximum adsorption capacity mainly due to the highest chelating affinity of oxygen containing groups to Cu(II), as reported previously 31 42 43 44 45 . In addition, it is noted that P-MMC showed a relatively high sorption capacities for Cu(II) and/or atrazine in comparison with other adsorbents ( Table S-3 ).…”

Section: Resultssupporting

confidence: 82%

Simultaneous removal of atrazine and copper using polyacrylic acid-functionalized magnetic ordered mesoporous carbon from water: adsorption mechanism

Zhou

Zhang

Tang

et al. 2017

Sci Rep

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Highly efficient simultaneous removal of atrazine and Cu(II) was accomplished using synthesized polyacrylic acid-functionalized magnetic ordered mesoporous carbon (P-MMC) as compared to magnetic ordered mesoporous carbon (MMC) and ordered mesoporous carbon (OMC). The mutual effects and interactive mechanism of their adsorption onto P-MMC were investigated systematically by binary, preloading and thermodynamic adsorption procedures. In both binary and preloading systems, the adsorption of atrazine was inhibited to some extent by the presence of Cu(II) because of selective recognition and direct competition, but the presence of atrazine had negligible effect on Cu(II) desorption. With the coexistence of humic acid (0–20 mg L−1), both atrazine and Cu(II) sorption increased slightly in sole and binary systems. With the concentration of coexisting NaCl increasing from 0 to 100 mM, the adsorption capacity for Cu(II) slightly decreased, but as for atrazine adsorption, it decreased at first, and then increased slightly in sole and binary systems. P-MMC was applied to treat real environmental samples, and the sorption capacities for atrazine and Cu(II) in real samples were all more than 91.47% and 96.43% of those in lab ultrapure water, respectively. Finally, comprehensively considering the relatively good renewability and the superior behavior in the application to real water samples, P-MMC has potential in removal of atrazine, Cu(II) and possibly other persistent organic pollutants from wastewater.

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Section: Resultssupporting

confidence: 82%

Simultaneous removal of atrazine and copper using polyacrylic acid-functionalized magnetic ordered mesoporous carbon from water: adsorption mechanism

Zhou

Zhang

Tang

et al. 2017

Sci Rep

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“…Significant efforts have been devoted for the preparation of MNPCs, including template-based synthesis, hydrothermal/solvothermal method, chemical vapor deposition, sol–gel process, and pyrolysis procedure . Unfortunately, there are still many considerable challenges and issues for these traditional methods, such as the difficulty in tailoring the surface properties of composites under exact control, magnetic transition metal leaching under acidic aqueous solutions, and time-consuming and multistep troublesome preparation procedures along with high cost (e.g., repeated impregnation with metal precursors and carbon, as well as hard templates removal). ,− Therefore, developing a cheap and convenient way to fabricate MNPCs is urgently needed to meet demands for removal of heavy metal ions from polluted water.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Magnetic Nitrogen-Doped Porous Carbon Prepared by One-Step Carbonization Strategy for Hg²⁺ Removal from Water

Huang

Chen

et al. 2017

ACS Appl. Mater. Interfaces

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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-sacrificing template to prepare MNPC. The obtained MNPCs via simple one-step carbonization strategy display higher adsorption capacity (429 mg g) for Hg ions than MNPC-T700-M3-T (382 mg g) which was obtained by two-step synthesis strategy for comparison. It also exhibits very fast adsorption dynamics (adsorption rate constant (K) = 2.45 g mg min) for Hg and could efficiently remove 95% Hg in 2 min for 20 mg L Hg solution. Furthermore, the prepared MNPC exhibits good chemical stability and the adsorption capacity is still more than 95% even after 10 adsorption-elution cycles. The proposed method is easy-processing and economic, which not only provides highly efficient MNPCs for metal ions capture but also paves the ways toward various MFCs with different ligands through solvent/additive-free synthesis approaches.

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“…[6] Compared with the soft-template method, the hard-template method is one of the most practical and effective approaches to control the porous structurea nd morphologyo fO MCs and thus has obtainedw ide attention.H owever,i nt he hard-template method, multiple steps are alwaysr equired. Therefore, many efforts have been directed toward solvent-free strategies to prepare OMCs, including chemicalv apor deposition (CVD) [8] or the solid-solid grinding approach, [9] among others. Unfortunately,o rganic solvents are harmful to the environment.…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately,o rganic solvents are harmful to the environment. Therefore, many efforts have been directed toward solvent-free strategies to prepare OMCs, including chemicalv apor deposition (CVD) [8] or the solid-solid grinding approach, [9] among others. [10] However, complicated equipment is required for the traditional CVD approach,a nd prior surface modification of the silica template is necessary for efficient deposition of the gaseous carbon precursor on the template.…”

Section: Introductionmentioning

confidence: 99%

Monomer Self‐Deposition for Ordered Mesoporous Carbon for High‐Performance Supercapacitors

Liu

et al. 2019

ChemSusChem

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Ordered mesoporous carbons (OMCs) have emerged as promising candidates for applications in adsorption, lithium‐ion batteries, supercapacitors, metal‐free catalysts, and catalyst supports owing to the ordered mesoporous channels, large surface areas, and quantum effects on the nanoscale. Herein, a new and simple self‐deposition following solid‐phase grinding method was used to prepare OMCs by direct transformation of phenol monomers into mesoporous carbon. The transformation occurred under metal‐salt catalysis and by using mesoporous silica as a template. The obtained OMC completely replicated the morphology of the template and exhibited high surface area, large pore volume, and uniform mesoporous structure. The advantage of this method is that no solvents or extra pre‐polymerization processes are needed, resulting in simple and easy operation and high universality. Owing to the abundant mesopores and high surface area, the OMC samples have good electrochemical properties and high potential for electrochemical materials.

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Solid–solid grinding/templating route to magnetically separable nitrogen-doped mesoporous carbon for the removal of Cu2+ ions

Cited by 22 publications

References 46 publications

Simultaneous removal of atrazine and copper using polyacrylic acid-functionalized magnetic ordered mesoporous carbon from water: adsorption mechanism

Simultaneous removal of atrazine and copper using polyacrylic acid-functionalized magnetic ordered mesoporous carbon from water: adsorption mechanism

Highly Efficient Magnetic Nitrogen-Doped Porous Carbon Prepared by One-Step Carbonization Strategy for Hg²⁺ Removal from Water

Monomer Self‐Deposition for Ordered Mesoporous Carbon for High‐Performance Supercapacitors

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Solid–solid grinding/templating route to magnetically separable nitrogen-doped mesoporous carbon for the removal of Cu2+ ions

Cited by 22 publications

References 46 publications

Simultaneous removal of atrazine and copper using polyacrylic acid-functionalized magnetic ordered mesoporous carbon from water: adsorption mechanism

Simultaneous removal of atrazine and copper using polyacrylic acid-functionalized magnetic ordered mesoporous carbon from water: adsorption mechanism

Highly Efficient Magnetic Nitrogen-Doped Porous Carbon Prepared by One-Step Carbonization Strategy for Hg2+ Removal from Water

Monomer Self‐Deposition for Ordered Mesoporous Carbon for High‐Performance Supercapacitors

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Highly Efficient Magnetic Nitrogen-Doped Porous Carbon Prepared by One-Step Carbonization Strategy for Hg²⁺ Removal from Water