Facile synthesis of amino-functional large-size mesoporous silica sphere and its application for Pb2+ removal

Li, Penggang; Wang, Jingxuan; Li, Xitong; Zhu, Wenjie; He, Shan; Han, Cuiping; Luo, Yongming; Ma, Wenhui; Liu, Nengsheng; Dionysiou, Dionysios D.

doi:10.1016/j.jhazmat.2019.05.057

Cited by 26 publications

(7 citation statements)

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“… Lewandowski et al [ 64 ] LMS-AP Pb (II) Pb(II) adsorption experiments In actual industrial wastewater treatment process, LMS-AP had a better Pb(II), Zn(II), and Cr (VI) removal efficiency of 80% and As (V) of 30–40% removal efficiency at initial pH 4. Li et al [ 33 ] Fe 3 O 4 @SiO 2 -NH 2 &F13 Perfluorinated compounds (PFC) Sorption experiment For the removal of PFC from surface water samples, Fe3O4 @SiO2 -NH2&F13 has a good anti-interference ability, and shows good removal efficiency (86.29%) for the nine PFCs analyzed in this study, as well as its reusability and stability. Zhou et al [ 65 ] SiO2@AZOL Hg(II), Cd(II), Cu(II), and Zn(II) Adsorption studies The material shows a high adsorption capacity for a variety of toxic metal ions (Hg(II), Cd(II), Cu(II), and Zn(II)).…”

Section: Current Applications and Future Directions Of Fmsnmentioning

confidence: 88%

“…It is these practical considerations with ion exchange membranes being generally limited by relatively high capital and operating costs, as well as technical or economic constraints [32], that have seen many industries moving away from these systems. Functionalised silica on the other hand have a low operating cost and can be optimized to work in environments with high dissolved organic carbon and low pH [33].…”

Section: The Development Of Fmsn and Its Principles Of Adsorptionmentioning

confidence: 99%

“…But the adsorption of Cr from the same waste water was only ca. 70%, while the removal of As was less still at only 30-40% [33]. The huge variety of mesoporous structures, pore network structures, combined with functionalization configurations makes FMSN a highly versatile yet extremely powerful chemical solution to toxic element containment.…”

Section: Diversity Of Fmsn's Functional Groupsmentioning

confidence: 99%

“…In Georgescu’s study [ 62 ], synthesized FMSN (TAC-functionalized silica) used for the removal cadmium and copper from water, adsorption results show that 0.1 g of FMSN can extract 94% of Cd(II) and 98% of Cu(II) from aqueous solutions (pH 6). Li et al [ 33 ], through a one-step method, synthesized LMS-AP-FMSN. In a subsequent wastewater treatment experiment, LMS-AP has good metal removal efficiency, and the removal rate of Al, Pb, and Zn reached more than 80%.…”

Section: Introduction To Fmsnmentioning

confidence: 99%

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Functionalized Mesoporous Silicon Nanomaterials in Inorganic Soil Pollution Research: Opportunities for Soil Protection and Advanced Chemical Imaging

et al. 2020

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Innovative actions towards a pollution free-planet" is a goal of the United Nations Environment Assembly (UNEA). Aided by both the Food and Agricultural Organisation (FAO) and its Global Soil Partnership under the 3rd UNEA resolution, a consensus from > 170 countries have agreed a need for accelerated action and collaboration to combat soil pollution. This initiative has been tasked to find new and improved solutions to prevent and reduce soil pollution, and it is in this context that this review provides an updated perspective on an emerging technology platform that has already provided demonstrable utility for measurement, mapping, and monitoring of toxic trace elements (TTEs) in soils, in addition to the entrapment, removal, and remediation of pollutant sources. In this article, the development and characteristics of functionalized mesoporous silica nanomaterials (FMSN) will be discussed and compared with other common metal scavenging materials. The chemistries of the common functionalizations will be reviewed, in addition to providing an outlook on some of the future directions/applications of FMSN. The use of FMSN in soil will be considered with some specific case studies focusing on Hg and As. Finally, the advantages and developments of FMSN in the widely used diffusive gradients-in-thin films (DGT) technique will be discussed, in particular, its advantages as a DGT substrate for integration with oxygen planar optodes in multilayer systems that provide 2D mapping of metal pollutant fluxes at submillimeter resolution, which can be used to measure detailed sediment-water fluxes as well as soil-root interactions, to predict plant uptake and bioavailability.

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Section: Current Applications and Future Directions Of Fmsnmentioning

confidence: 88%

Section: The Development Of Fmsn and Its Principles Of Adsorptionmentioning

confidence: 99%

Section: Diversity Of Fmsn's Functional Groupsmentioning

confidence: 99%

Section: Introduction To Fmsnmentioning

confidence: 99%

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Functionalized Mesoporous Silicon Nanomaterials in Inorganic Soil Pollution Research: Opportunities for Soil Protection and Advanced Chemical Imaging

et al. 2020

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“…The adsorption capacities of ALs were poor for both heavy metals at pH 2.0 to 3.0. The protonation of ALs in an acidic environment caused the formation of cationic ammonium groups, resulting in the strong repulsion between ALs and cationic heavy metal ions (Li et al 2019a). In contrast, under neutral conditions, ALs have a relatively good adsorption capacity of cationic heavy metal ions, which are expected to chelate with heavy metal cations because of the presence of lone pair electrons in ALs (Xu et al 2016).…”

Section: Operational Parameters Of the Metal Ion Adsorptionmentioning

confidence: 99%

Application of three types of aminated lignins for efficient removal of Cd(II) and Pb(II) ions in aqueous solution

Heo

Chen

et al. 2022

BioRes

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Lignin is a renewable natural aromatic polymer that is generated as a co-product during lignocellulosic biorefinery processes, and it has been applied widely as a functional biomaterial. In this study, the adsorption behavior of Cd(II) and Pb(II) metal ions was investigated via ion chelation using aminated lignins (ALs) with primary, secondary, and tertiary amine groups. ALs exhibited optimal Cd(II) and Pb(II) adsorption capacities in solution under neutral conditions due to their chelating, electrostatic, and cationic–π interactions with metal ions. The AL with the primary amine group showed the highest adsorption capacities for both Cd(II) and Pb(II), reaching 83.2 and 159.7 mg·g-1, respectively, followed by the ALs with secondary and tertiary amine groups. The adsorption kinetics and isotherm analysis demonstrated that all adsorption behaviors followed the Langmuir isotherm and pseudo-second-order kinetics. Thermodynamic studies revealed that the adsorption processes of Cd(II) and Pb(II) using the ALs were spontaneous and endothermic. These results demonstrate that ALs are promising adsorbents for the removal of Cd(II) and Pb(II) metal ions.

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Efficient Lead Removal by Assembly of Bio‐Derived Ellagate Framework, Which Enables Electrocatalytic Reduction of CO₂ to Formate

Chen,

Chung,

Chen

et al. 2024

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Lead (Pb) poisoning and CO2‐induced global warming represent two exemplary environmental and energy issues threatening humanity. Various biomass‐derived materials are reported to take up Pb and convert CO2 electrochemically into low‐valent carbon species, but these works address the problems separately rather than settle the issues simultaneously. In this work, cheap, natural ellagic acid (EA) extracted from common plants is adopted to assemble a stable metal–organic framework (MOF), EA‐Pb, by effective capture of Pb2+ ions in an aqueous medium (removal rate close to 99%). EA‐Pb represents the first structurally well‐defined Pb‐based MOF showing selective electrocatalytic CO2‐to‐HCOO− conversion with Faradaic efficiency (FE) of 95.37% at −1.08 V versus RHE. The catalytic mechanism is studied by 13CO2 labeling, in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS), and theoretical calculation. The use of EA‐Pb as an electrocatalyst for CO2 reduction represents a 2‐in‐1 solution of converting detrimental wastes (Pb2+) as well as natural resources (EA) into wealth (electrocatalytic EA‐Pb) for addressing the global warming issue.

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Facile synthesis of amino-functional large-size mesoporous silica sphere and its application for Pb2+ removal

Cited by 26 publications

References 50 publications

Functionalized Mesoporous Silicon Nanomaterials in Inorganic Soil Pollution Research: Opportunities for Soil Protection and Advanced Chemical Imaging

Functionalized Mesoporous Silicon Nanomaterials in Inorganic Soil Pollution Research: Opportunities for Soil Protection and Advanced Chemical Imaging

Application of three types of aminated lignins for efficient removal of Cd(II) and Pb(II) ions in aqueous solution

Efficient Lead Removal by Assembly of Bio‐Derived Ellagate Framework, Which Enables Electrocatalytic Reduction of CO₂ to Formate

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Facile synthesis of amino-functional large-size mesoporous silica sphere and its application for Pb2+ removal

Cited by 26 publications

References 50 publications

Functionalized Mesoporous Silicon Nanomaterials in Inorganic Soil Pollution Research: Opportunities for Soil Protection and Advanced Chemical Imaging

Functionalized Mesoporous Silicon Nanomaterials in Inorganic Soil Pollution Research: Opportunities for Soil Protection and Advanced Chemical Imaging

Application of three types of aminated lignins for efficient removal of Cd(II) and Pb(II) ions in aqueous solution

Efficient Lead Removal by Assembly of Bio‐Derived Ellagate Framework, Which Enables Electrocatalytic Reduction of CO2 to Formate

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Product

Resources

About

Efficient Lead Removal by Assembly of Bio‐Derived Ellagate Framework, Which Enables Electrocatalytic Reduction of CO₂ to Formate