Modification of ordered mesoporous carbon for removal of environmental contaminants from aqueous phase: A review

Zhang, Jian; Zhang, Ni; Tack, Filip; Sato, Shuko; Alessi, Daniel S.; Oleszczuk, Patryk; Wang, Hailong; Wang, Xiaozhi; Wang, Shengsen

doi:10.1016/j.jhazmat.2021.126266

Cited by 51 publications

(24 citation statements)

References 158 publications

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“…As reported in the literature, [ 18 , 19 , 20 , 27 , 28 ], both clay-based and carbon-based systems can be effective sorbents for metal ions, in particular, Ni and La. In accordance with the literature, our four systems have demonstrated good sorption capability for the different ions concentrations in both single- and bi-ionic solutions.…”

Section: Discussionsupporting

confidence: 87%

“…It is well established that in carbon-based materials, adsorption is the active mechanism for heavy metals capture [ 32 ]. Capture is mainly dependent on a sorbent material’s specific surface area, pore size, and pore volume, but also the nature of the surface, i.e., the surface functional groups play a fundamental role in the process [ 27 , 41 ]. Indeed, the surface chemistry of carbon-based materials presents a degree of heterogeneity associated with heteroatoms coming from the nature of the AC precursors or inoculation methods applied during activation [ 58 ].…”

Section: Discussionmentioning

confidence: 99%

“…In this respect, it has to be reminded that, also for these materials, different ions-sorbent interactions may be present; they may include electrostatic interactions, π-π electronic donor-acceptor interactions, hydrogen bonding, ligand exchange, pore filling, ion exchange, surface complexation, and hydrophobic interactions [ 27 ], but ions exchange and partial hydrolysis [ 41 ], too. These interactions are pH-dependent, but they can also be contemporarily active.…”

Section: Discussionmentioning

confidence: 99%

“…Moreover, clay materials can be modified by several organic and inorganic treatments to improve their adsorption capacity, as well as their textural structure and surface properties [ 21 , 22 , 23 , 24 , 25 , 26 ]. Similar considerations apply to carbon-based materials [ 27 , 28 , 29 , 30 , 31 , 32 ].…”

Section: Introductionmentioning

confidence: 98%

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Capture and Release Mechanism of Ni and La Ions via Solid/Liquid Process: Use of Polymer-Modified Clay and Activated Carbons

Cristiani

Bellotto²,

Dotelli

et al. 2022

Polymers

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This study is a starting point for the development of an efficient method for rare earths (REs) and transition metals (TMs) recovery from waste electrical and electronic equipment (WEEE) via a hydrometallurgical process. The capture and release capability of mineral clays (STx) and activated carbons (AC), pristine and modified (STx-L6 and AC-L6) with a linear penta-ethylene-hexamine (L6), towards solutions representative of the process, are assessed in the lab-scale. The solids were contacted with synthetic mono- and bi-ionic solutions containing Ni(II) and La(III) in a liquid/solid adsorption process. Contacting experiments were carried out at room temperature for 90 min by fixing a La concentration at 19 mM and varying the Ni one in the range of 19–100 mM. The four solids were able to capture Ni(II) and La(III), both in single- and bi-ionic solutions; however, the presence of the polyamine always results in a large improvement in the capture capability of the pristine sorbents. For all the four solids, capture behaviour is ascribable to an adsorption or ion-sorbent interaction process, because no formation of aquo- and hydroxy-Ni or La can be formed. The polyamine, able to capture Ni ions via coordination, allowed to differentiate ion capture behaviour, thus bypassing the direct competition between Ni and La ions for the capture sites found in the pristine solids. Release values in the 30–100% range were found upon one-step treatment with concentrated HNO3 solution. However, also, in this case, different metals recovery was found depending on both the sorbent and the ions, suggesting a possible selective recovery.

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Section: Discussionsupporting

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

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Capture and Release Mechanism of Ni and La Ions via Solid/Liquid Process: Use of Polymer-Modified Clay and Activated Carbons

Cristiani

Bellotto²,

Dotelli

et al. 2022

Polymers

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“…The pore size of OMC was 5.57 nm, and lots of mesopores were present in the OMC materials. Therefore, the pore structure of OMC had a larger specific surface area and more edge active sites (Zhang et al, 2021c). As shown in Figure 1C, the flower structure of MoS 2 was successfully assembled into the surface of OMC.…”

Section: Materials Characterizationmentioning

confidence: 93%

Molybdenum Sulfide (MoS2)/Ordered Mesoporous Carbon (OMC) Tubular Mesochannel Photocatalyst for Enhanced Photocatalytic Oxidation for Removal of Volatile Organic Compounds (VOCs)

Guan

Zeng

et al. 2022

Front. Chem.

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Air pollutants cause severe problems in urban areas, specifically in terms of toxicological impacts on human health. Therefore, it is urgent to develop an effective, safe, and inexpensive technique to remove these air pollutants. In this study, the MoS2/OMC heterojunction photocatalyst was successfully synthesized by a hydrothermal process and used for improving photocatalytic oxidation performance for removing VOCs. Formaldehyde was used as a model VOC in the gas phase and was removed at room temperature under visible light irradiation. For my research, the microstructure and morphology of the photocatalyst were deeply characterized, and the results indicated that MoS2 were successfully coupled into OMC materials to prepare MoS2/OMC heterojunction photocatalysts. The trend of photocatalytic efficiency for formaldehyde decomposition was MoS2/OMC > MoS2 > OMC. Besides, the MoS2/OMC heterojunction photocatalyst showed an excellent regeneration performance after several recycles, indicating the potential of MoS2/OMC composite as a promising photocatalyst for VOC removal. These results indicated that the photocatalytic reactor containing MoS2/OMC photocatalysts was highly active and stable.

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Derivatives Based on Cyclodextrin Structure for Adsorption of Heavy Metal Ions and Organic Pollutants in Wastewater

Shang,

Wang,

Zhang

et al. 2023

Advanced Sustainable Systems

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This study provides a solution for the treatment of heavy metal ions as well as common organic pollutants in water by adsorption, which contributes to the achievement of sustainable development goals. In this work, a new adsorption material, β‐cyclodextrin‐acrylic acid‐acrylamide (CD‐AA‐AM‐MBA), is synthesized. The structure of the materials is characterized and analyzed using fourier transform infrared spectroscopy (FT‐IR), Xray diffraction spectroscopy(XRD), scanning electron microscopy(SEM) and thermogravimetric analysis(TGA). The effects of initial ion concentration, contact time, and different pH values on the adsorption performance are studied. Under the optimized conditions, the adsorption capacity in CD‐AA‐AM‐MBA of Cu2+, Pb2+, Cd2+, Methylene Blue(MB), Methyl Orange(MO), phenol, m‐cresol and p‐cresol are 58.66, 326, 48.5, 58.27, 51.34, 6.63, 3.7 and 5.91 mg g−1.

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Modification of ordered mesoporous carbon for removal of environmental contaminants from aqueous phase: A review

Cited by 51 publications

References 158 publications

Capture and Release Mechanism of Ni and La Ions via Solid/Liquid Process: Use of Polymer-Modified Clay and Activated Carbons

Capture and Release Mechanism of Ni and La Ions via Solid/Liquid Process: Use of Polymer-Modified Clay and Activated Carbons

Molybdenum Sulfide (MoS2)/Ordered Mesoporous Carbon (OMC) Tubular Mesochannel Photocatalyst for Enhanced Photocatalytic Oxidation for Removal of Volatile Organic Compounds (VOCs)

Derivatives Based on Cyclodextrin Structure for Adsorption of Heavy Metal Ions and Organic Pollutants in Wastewater

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