Integration of membrane filtration and photoelectrocatalysis on g-C3N4/CNTs/Al2O3 membrane with visible-light response for enhanced water treatment

Wang, Xiaoting; Wang, Guanlong; Chen, Shuo; Fan, Xinfei; Quan, Xie; Yu, Hongtao

doi:10.1016/j.memsci.2017.06.046

Cited by 113 publications

(28 citation statements)

References 31 publications

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“…[8] Recently,G eim et al described the ions transportation properties through angstrom-scale graphene slits. [10] Meanwhile,m embrane materials and methods based on carbon nitride have been developed to realize water transport, [11] actuators, [12] and separation, [13] all questions closely related to the present work. [6] Tw od imensional carbon nitride (C 3 N 4 ) materials are another obvious choice with inherent lateral porosity,and it already attracting broad interest with its broad applications in sensing,b io-imaging,n ovel solar energy exploitation, as well as photocatalysis.…”

mentioning

confidence: 89%

“…[6] Tw od imensional carbon nitride (C 3 N 4 ) materials are another obvious choice with inherent lateral porosity,and it already attracting broad interest with its broad applications in sensing,b io-imaging,n ovel solar energy exploitation, as well as photocatalysis. [10] Meanwhile,m embrane materials and methods based on carbon nitride have been developed to realize water transport, [11] actuators, [12] and separation, [13] all questions closely related to the present work. However,t he ion transport properties through the 2D layered polymeric carbon nitride membrane has to our knowledge never been explored.…”

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confidence: 89%

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Nanofluidic Ion Transport and Energy Conversion through Ultrathin Free‐Standing Polymeric Carbon Nitride Membranes

et al. 2018

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Ions transport through confined space with characteristic dimensions comparable to the Debye length has many applications, for example, in water desalination, dialysis, and energy conversion. However, existing 2D/3D smart porous membranes for ions transport and further applications are fragile, thermolabile, and/or difficult to scale up, limiting their practical applicability. Now, polymeric carbon nitride alternatively allows the creation of an ultrathin free-standing carbon nitride membrane (UFSCNM), which can be fabricated by simple CVD polymerization and exhibits excellent nanofluidic ion-transport properties. The surface-charge-governed ion transport also endows such UFSCNMs with the function of converting salinity gradients into electric energy. With advantages of low cost, facile fabrication, and the ease of scale up while supporting high ionic currents, UFSCNM can be considered as an alternative for energy conversion systems and new ionic devices.

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confidence: 89%

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confidence: 89%

Nanofluidic Ion Transport and Energy Conversion through Ultrathin Free‐Standing Polymeric Carbon Nitride Membranes

et al. 2018

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“…Xiao et al demonstrated that the excellent stability of g-C3N4 towards photocatalytic oxidation in the presence of organic pollutants reflects strong competition of the latter for • OH radicals under practical working conditions, resulting in preferential decomposition of the pollutants rather than the carbon nitride [245]. Several multicomponent nanocomposites based on g-C3N4 nanosheets such as Au@g-C3N4-PANI [246], Au-NYF/g-C3N4 [105], g-C3N4/CNTs/Al2O3 [247], AgCl/Ag3PO4/g-C3N4 [248], and g-C3N4/Zn0.11Sn0.12Cd0.88S1.12 [249] are also reported; the performance of different g-C3N4 photocatalysts for the photodegradation of representative aqueous pollutants is summarized in Table 3. Several multicomponent nanocomposites based on g-C 3 N 4 nanosheets such as Au@g-C 3 N 4 -PANI [246], Au-NYF/g-C 3 N 4 [105], g-C 3 N 4 /CNTs/Al 2 O 3 [247], AgCl/Ag 3 PO 4 /g-C 3 N 4 [248], and g-C 3 N 4 /Zn 0.11 Sn 0.12 Cd 0.88 S 1.12 [249] are also reported; the performance of different g-C 3 N 4 photocatalysts for the photodegradation of representative aqueous pollutants is summarized in Table 3.…”

Section: Environmental Remediationmentioning

confidence: 99%

g-C3N4-Based Nanomaterials for Visible Light-Driven Photocatalysis

2018

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Graphitic carbon nitride (g-C 3 N 4 ) is a promising material for photocatalytic applications such as solar fuels production through CO 2 reduction and water splitting, and environmental remediation through the degradation of organic pollutants. This promise reflects the advantageous photophysical properties of g-C 3 N 4 nanostructures, notably high surface area, quantum efficiency, interfacial charge separation and transport, and ease of modification through either composite formation or the incorporation of desirable surface functionalities. Here, we review recent progress in the synthesis and photocatalytic applications of diverse g-C 3 N 4 nanostructured materials, and highlight the physical basis underpinning their performance for each application. Potential new architectures, such as hierarchical or composite g-C 3 N 4 nanostructures, that may offer further performance enhancements in solar energy harvesting and conversion are also outlined.

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“…Two dimensional carbon nitride (C 3 N 4 ) materials are another obvious choice with inherent lateral porosity, and it already attracting broad interest with its broad applications in sensing, bio‐imaging, novel solar energy exploitation, as well as photocatalysis . Meanwhile, membrane materials and methods based on carbon nitride have been developed to realize water transport, actuators, and separation, all questions closely related to the present work. However, the ion transport properties through the 2D layered polymeric carbon nitride membrane has to our knowledge never been explored.…”

Section: Figurementioning

confidence: 97%

Nanofluidic Ion Transport and Energy Conversion through Ultrathin Free‐Standing Polymeric Carbon Nitride Membranes

et al. 2018

View full text Add to dashboard Cite

Ions transport through confined space with characteristic dimensions comparable to the Debye length has many applications, for example, in water desalination, dialysis, and energy conversion. However, existing 2D/3D smart porous membranes for ions transport and further applications are fragile, thermolabile, and/or difficult to scale up, limiting their practical applicability. Now, polymeric carbon nitride alternatively allows the creation of an ultrathin free‐standing carbon nitride membrane (UFSCNM), which can be fabricated by simple CVD polymerization and exhibits excellent nanofluidic ion‐transport properties. The surface‐charge‐governed ion transport also endows such UFSCNMs with the function of converting salinity gradients into electric energy. With advantages of low cost, facile fabrication, and the ease of scale up while supporting high ionic currents, UFSCNM can be considered as an alternative for energy conversion systems and new ionic devices.

show abstract

Integration of membrane filtration and photoelectrocatalysis on g-C3N4/CNTs/Al2O3 membrane with visible-light response for enhanced water treatment

Cited by 113 publications

References 31 publications

Nanofluidic Ion Transport and Energy Conversion through Ultrathin Free‐Standing Polymeric Carbon Nitride Membranes

Nanofluidic Ion Transport and Energy Conversion through Ultrathin Free‐Standing Polymeric Carbon Nitride Membranes

g-C3N4-Based Nanomaterials for Visible Light-Driven Photocatalysis

Nanofluidic Ion Transport and Energy Conversion through Ultrathin Free‐Standing Polymeric Carbon Nitride Membranes

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