Engineering Fe–N–C sites onto Fe nanoparticles for synergistically boosting Cr(<scp>vi</scp>) reduction: performance, mechanism, and applications

Li, Minghui; Liu, Wenjing; Liu, Panxinchen; Lin, Xiaoqin; Zhu, Hongjie; Fang, Caixia; Li, Wenwen; Liu, Chang

doi:10.1039/d3ta07343b

Cited by 3 publications

(1 citation statement)

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“…24,25 To date, numerous photocatalysts such as Fe NPs @Fe SAs NC, ZnIn 2 S 4 /CdS, CoO@MnCo 2 O 4 , and CeO 2 /BiOX have been developed. 26–29 Among these, titanium dioxide (TiO 2 ) has received considerable attention due to its excellent photocatalytic performance. 30,31 However, TiO 2 is associated with many limitations in the photocatalytic process, such as high recombination rate of photogenerated electron–hole pairs, which seriously affect its widespread applications.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of adsorption-photocatalytic reduction of Cr(vi) in wastewater with biochar/TiO₂ composite under simulated sunlight illumination

Du,

Ye,

Hui

et al. 2024

Phys. Chem. Chem. Phys.

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Section: Introductionmentioning

confidence: 99%

Synergistic effect of adsorption-photocatalytic reduction of Cr(vi) in wastewater with biochar/TiO₂ composite under simulated sunlight illumination

Du,

Ye,

Hui

et al. 2024

Phys. Chem. Chem. Phys.

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New insights into the remediation of chromium-contaminated industrial electroplating wastewater by an innovative nano-modified biochar derived from spent mushroom substrate: Mechanisms, batch study, stability and application

Wang,

Guan,

Guo

et al. 2024

Chemosphere

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One-Step-Modified Biochar by Natural Anatase for Eco-Friendly Cr (VI) Removal

Zhao,

Wang,

Xie

et al. 2024

Sustainability

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The global serious pollution situation urgently needs green, efficient, and sustainable development methods to achieve heavy metal pollution control. The photocatalytic properties of anatase are sufficient to achieve pollution control by providing photoelectrons to harmful heavy metals. However, since natural anatase particles tend to agglomerate and deactivate in water, most studies have been conducted to prepare TiO2–biochar nanocomposites using chemical synthesis methods. In the present study, we utilized pyrolytic sintering to load natural anatase onto biochar to obtain natural anatase–biochar (TBC) composites. Characterization tests, such as X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS), showed that anatase was uniformly partitioned into the surface and pores of biochar without destroying the lattice structure. Due to its photocatalytic properties, TBC degraded Cr (VI) by 99.63% under light conditions. This is 1.58 times higher than the dark condition. Zeta potential showed that the surface of the TBC was positively charged under acidic conditions. The charge attraction between TBC and chromium salt was involved in the efficient degradation of Cr (VI). Different sacrificial agents as well as gas purge experiments demonstrated that photoelectrons (e−) and superoxide radicals (O2−) dominated the degradation of Cr (VI). TBC has the characteristics of high efficiency, stability, and sustainability. This may provide a new idea for the preparation of photocatalytic materials and the realization of environmental protection and sustainable development through heavy metal pollution control.

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Engineering Fe–N–C sites onto Fe nanoparticles for synergistically boosting Cr(vi) reduction: performance, mechanism, and applications

Abstract: Hexavalent chromium (Cr(VI)) is well known for its high toxicity to both human health and environment. It is of utmost significance to develop robust and effective materials for the removal...

Cited by 3 publications

References 50 publications

Synergistic effect of adsorption-photocatalytic reduction of Cr(vi) in wastewater with biochar/TiO₂ composite under simulated sunlight illumination

Synergistic effect of adsorption-photocatalytic reduction of Cr(vi) in wastewater with biochar/TiO₂ composite under simulated sunlight illumination

New insights into the remediation of chromium-contaminated industrial electroplating wastewater by an innovative nano-modified biochar derived from spent mushroom substrate: Mechanisms, batch study, stability and application

One-Step-Modified Biochar by Natural Anatase for Eco-Friendly Cr (VI) Removal

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Engineering Fe–N–C sites onto Fe nanoparticles for synergistically boosting Cr(vi) reduction: performance, mechanism, and applications

Abstract: Hexavalent chromium (Cr(VI)) is well known for its high toxicity to both human health and environment. It is of utmost significance to develop robust and effective materials for the removal...

Cited by 3 publications

References 50 publications

Synergistic effect of adsorption-photocatalytic reduction of Cr(vi) in wastewater with biochar/TiO2 composite under simulated sunlight illumination

Synergistic effect of adsorption-photocatalytic reduction of Cr(vi) in wastewater with biochar/TiO2 composite under simulated sunlight illumination

New insights into the remediation of chromium-contaminated industrial electroplating wastewater by an innovative nano-modified biochar derived from spent mushroom substrate: Mechanisms, batch study, stability and application

One-Step-Modified Biochar by Natural Anatase for Eco-Friendly Cr (VI) Removal

Contact Info

Product

Resources

About

Synergistic effect of adsorption-photocatalytic reduction of Cr(vi) in wastewater with biochar/TiO₂ composite under simulated sunlight illumination

Synergistic effect of adsorption-photocatalytic reduction of Cr(vi) in wastewater with biochar/TiO₂ composite under simulated sunlight illumination