Graphene oxide/CuFe2O4 foam as an efficient absorbent for arsenic removal from water

Wu, Lian-Kui; Wu, Hao; Zhang, Huibin; Cao, Huazhen; Hou, Guangya; Tang, Yiping

doi:10.1016/j.cej.2017.11.096

Cited by 170 publications

(51 citation statements)

References 75 publications

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“…The doublets of Cu 2p 3/2 binding energy at 933.2 eV and Cu 2p 1/2 binding energy at 952.8 eV are assigned to the Cu 2+ ions in octahedral sites, while the doublets of Cu 2p 3/2 binding energy at 935.1 eV and Cu 2p 1/2 binding energy at 955.0 eV are assigned to the Cu 2+ ions in tetrahedral sites. The relative contributions to the overall intensity of Cu 2+ ions at the octahedral and tetrahedral sites are 51% and 49%, respectively [27]. These results are consistent with that of the CuFe 2 O 4 nanospheres prepared by the reported hydrothermal method [28].…”

Section: Morphology and Structuresupporting

confidence: 86%

High Performance of Manganese Porphyrin Sensitized p-Type CuFe2O4 Photocathode for Solar Water Splitting to Produce Hydrogen in a Tandem Photoelectrochemical Cell

Liu

Chu

et al. 2018

Catalysts

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A novel composite composed of (5, 10, 15, 20-tetraphenyl) porphinato manganese sensitized p-type CuFe 2 O 4 was developed for constructing the photocathode of a tandem photoelectrochemical (PEC) cell. The prepared material was characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and UV-vis diffuse reflectance spectroscopy (DRS). Light-driven water splitting to produce hydrogen can be achieved through the PEC cell, and the results show that H 2 and O 2 can be collected separately at low applied bias. This work demonstrates that manganese porphyrin sensitized CuFe 2 O 4 is an effective hybrid material for building the photocathode of a PEC cell for solar water splitting to produce H 2 .

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Section: Morphology and Structuresupporting

confidence: 86%

High Performance of Manganese Porphyrin Sensitized p-Type CuFe2O4 Photocathode for Solar Water Splitting to Produce Hydrogen in a Tandem Photoelectrochemical Cell

Liu

Chu

et al. 2018

Catalysts

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“…The dosage of the adsorbent, pH and temperature were controlled under 0.1 ± 0.01 g L − 1 , 3.0 to 9.0 and 25 ± 0.5°C, respectively. The adsorption capacity of arsenic onto graphene oxide/CuFe 2 O 4 was 5, 13.6, 22.3 and 26.5 mg g − 1 at concentrations of 0.5, 1.0, 2.0 and 4.0 mg L − 1 , respectively [19]. As the concentration of arsenic was increased, the adsorption capacity increased (Fig.…”

Section: Effect Of Concentrationmentioning

confidence: 89%

Deciphering the effect of citric acid on arsenic adsorption with phosphorene in aqueous solution

Lin

Cao

Yang

et al. 2019

Sustain Environ Res

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This paper presents the first attempt to explore the potential of phosphorene as an adsorbent for arsenic [AS(III) and As(V)] removal under competition adsorption with citric acid (CA). In this study, the phosphorene was prepared by the exfoliation method. Results showed that CA reduced As(III) adsorption due to the lower stability constant of organic-As(III) complexes. The adsorption capacity with phosphorene was enhanced with a decrease in the initial concentration of CA. The adsorption rates for As(III) and As(V) were 0.033 and 0.069 min − 1 , respectively, according to kinetics analysis. The maximum adsorption capacity obtained using the Langmuir model was 8.9 mg g − 1 for As(III) at pH 7 with 0.1 mM CA addition, and the As(V) adsorption capacity of phosphorene was 20 mg g − 1 .

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“…Liang et al (2018) prepared rGO/NiFe 2 O 4 via a simple mechanical ball-milling method to evaluate the photodegradation performance for MB under visible-light irradiation. In contrast, the copper/silver ferrites have not been widely used to prepare GNSF-based effective adsorbents and/or photocatalysts, despite the strong affinity of copper oxide to inorganic ions over a wide pH range and the relatively narrow band gap (1.9 eV) (Hosseini et al, 2017, Wu et al, 2018.…”

Section: Synthesis Technique Of Gnsfsmentioning

confidence: 99%

Potential utility of graphene-based nano spinel ferrites as adsorbent and photocatalyst for removing organic/inorganic contaminants from aqueous solutions: A mini review

et al. 2019

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Toxic substances such as heavy metals or persistent organic pollutants raise global environmental concerns. Thus, diverse water decontamination approaches using nano-adsorbents and/or photocatalysts based on nanotechnology are being developed. Particularly, many studies have examined the removal of organic and inorganic contaminants with novel graphene-based nano spinel ferrites (GNSFs) as potential cost-effective alternatives to traditionally used materials, owing to their enhanced physical and chemical properties. The introduction of magnetic spinel ferrites into 2-D graphene-family nanomaterials to form GNSFs brings various benefits such as inhibited particle agglomeration, enhanced active surface area, and easier magnetic separation for reuse, making the GNSFs highly efficient and eco-friendly materials. Here, we present a short review on the state-of-the-art progresses on developments of GNSFs, as well as their potential application for removing several recalcitrant contaminants including organic dyes, antibiotics, and heavy metal ions. Particularly, the mechanisms involved in the adsorptive and photocatalytic degradation are thoroughly reviewed, and the reusability of the GNSFs is also highlighted. This review concludes that the GNSFs hold great potential in remediating contaminated aquatic environments. Further studies are needed for their practical and large-scale applications.

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Graphene oxide/CuFe2O4 foam as an efficient absorbent for arsenic removal from water

Cited by 170 publications

References 75 publications

High Performance of Manganese Porphyrin Sensitized p-Type CuFe2O4 Photocathode for Solar Water Splitting to Produce Hydrogen in a Tandem Photoelectrochemical Cell

High Performance of Manganese Porphyrin Sensitized p-Type CuFe2O4 Photocathode for Solar Water Splitting to Produce Hydrogen in a Tandem Photoelectrochemical Cell

Deciphering the effect of citric acid on arsenic adsorption with phosphorene in aqueous solution

Potential utility of graphene-based nano spinel ferrites as adsorbent and photocatalyst for removing organic/inorganic contaminants from aqueous solutions: A mini review

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