Morphology controlled synthesis and photocatalytic study of novel CuS-Bi2O2CO3 heterojunction system for chlorpyrifos degradation under visible light illumination

Majhi, Dibyananda; Bhoi, Yagna Prakash; Samal, Pankaj Kumar; Mishra, Braja Gopal

doi:10.1016/j.apsusc.2018.06.051

Cited by 93 publications

(28 citation statements)

References 69 publications

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“…O 2 − as the major reactive species in the degradation of CPF. Similar observations were also found for RhB dye [46] …”

Section: Resultssupporting

confidence: 88%

“…Exposure to light removes the ethyl groups of RhB from its parent structure and finally breaks it into smaller harmless molecules (Scheme 2). [60] Table 2 represents a comparative data of photo‐degradation of CPF and RhB with different previously reported photocatalysts [46,61] . The table indicates BRZC nanocomposite possesses better photocatalytic results under light than many traditional photocatalyst applied for CPF and RhB degradation.…”

Section: Resultsmentioning

confidence: 99%

“…[60] Table 2 represents a comparative data of photo-degradation of CPF and RhB with different previously reported photocatalysts. [46,61] The table indicates BRZC nanocomposite possesses better photocatalytic results under light than many traditional photocatalyst applied for CPF and RhB degradation. Also, the activity and efficiency of BRZC under visible light demonstrate its wide range photo-harvesting nature.…”

Section: Photo-degradation Pathway Of Cpf and Rhbmentioning

confidence: 99%

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Design of a Non‐Cytotoxic ZnFe₂O₄‐CeO₂/BRGO Direct Z‐Scheme Photocatalyst with Bioreduced Graphene Oxide as Cocatalyst

et al. 2021

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Herein,we report the synthesis of a non‐cytotoxic ternary ZnFe2O4‐CeO2/bioreduced graphene oxide (BRZC) nanocomposite via in situ reflux method using a green solvent. The bioreduced graphene oxide (BRGO) used in the nanocomposite was obtained by reducing graphene oxide (GO) in Ocimum tenuiflorum leaf extract. Thourough structural, morphological, and photochemical characterizations revealed that the BRZC heterojunction possesses highly crystalline nanoparticles, enhanced surface reactive sites and suitable band arrangement for photon adsorption. Such a structure was found to bebeneficial in accelerating photocatalytic reaction synergistically by inhibiting charge carrier recombination. The BRZC nanocomposite showcased superior efficiency towards Chlorpyrifos (0.0634 min−1) andRhodamine B (0.0907 min−1) photodegradation. Detailed investigations revealed a most suitable internal electric field‐driven direct Z‐scheme mechanism between ZnFe2O4 and CeO2,where BRGO acts as a cocatalyst. After multiple photochemical and radical trapping experiments, .OH and O2.− were found to be the active species behind the enahnced activity. The ternary heterojunction was also found to be effective for highly toxic real textile effluents with 82 % degradation efficiency. Moreover, Trypan Blue Exclusion (TBE) assay study demonstrated the non‐cytotoxicity nature of the photocatalyst and a significant decrease in cytotoxicity of the above photocatalytically treated pollutants.

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“…O 2 − as the major reactive species in the degradation of CPF. Similar observations were also found for RhB dye [46] …”

Section: Resultssupporting

confidence: 88%

Section: Resultsmentioning

confidence: 99%

Section: Photo-degradation Pathway Of Cpf and Rhbmentioning

confidence: 99%

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Design of a Non‐Cytotoxic ZnFe₂O₄‐CeO₂/BRGO Direct Z‐Scheme Photocatalyst with Bioreduced Graphene Oxide as Cocatalyst

et al. 2021

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“…The conduction band electrons from Bi 2 W 2 O 9 can migrate to the valence band of Bi 2 S 3 due to suitable band orientation of both components. This pattern of electron migration is the characteristic features of a direct Z‐scheme heterostructure system . For the BSBWO heterostructure system, the e − and h + are populated in CB of Bi 2 S 3 and VB of Bi 2 W 2 O 9 , respectively.…”

Section: Resultsmentioning

confidence: 90%

Visible‐Light‐Assisted Photocatalytic Degradation of Phenolic Compounds Using Bi₂S₃/Bi₂W₂O₉ Heterostructure Materials as Photocatalyst

et al. 2019

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In this work, bismuth sulphide (Bi2S3)/bismuth tungstate (Bi2W2O9) heterostructure materials were prepared and studied as photocatalyst for decomposition of phenolic compounds under visible light. The Bi2S3 nanomaterial was deposited over the combustion synthesized Bi2W2O9 material using a hydrothermal procedure. The heterostructures were characterized using X‐ray diffraction (XRD), photoluminescence (PL), photoelectron spectroscopy (XPS), ultraviolet‐visible diffuse reflectance spectroscopy (UV‐Vis‐DRS), field emission scanning electron microscopy (FESEM), and transmission electron microscopy (TEM) techniques. The presence of crystalline orthorhombic Bi2S3 and Bi2W2O9 phases was confirmed from XRD analysis. Morphologically, the heterostructure materials contained Bi2S3 nano‐rods grown uniformly over Bi2W2O9 micron size plates. The heterostructure materials displayed improved absorption features in visible region and enhanced separation of excitons. The Bi2S3/Bi2W2O9 materials displayed excellent photocatalytic activity towards the degradation of phenolic compounds from aqueous sources. Structurally diverse phenol moieties could be mineralized effectively with high efficiency (> 80%) within 2 h. The hydroxyl and superoxide radicals were identified as reactive species for phenol degradation, the formation of which was confirmed from spectroscopic analysis. The mechanism of photocatalytic degradation of phenol over the Bi2S3/Bi2W2O9 photocatalyst surface was also described.

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“…2, the diffraction peaks of copper sulfide at 2θ values of 28, 30, 32, 33, 43, 53, and 59°have been observed, which matched well with (101), (102), (103), (006), (110), (108), and (116) crystal planes of copper sulfide (JCPDS No. 06-0464) [27], respectively. It was proved that pure phase nano-copper sulfide was synthesized in the experiment; no other diffraction peaks were observed, indicating that the material was of high purity.…”

Section: Xrd Analysismentioning

confidence: 97%

Preparation of Nano-Copper Sulfide and Its Adsorption Properties for 17α-Ethynyl Estradiol

et al. 2020

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In the present work, a tubular nano-copper sulfide was successfully synthesized by hydrothermal method. The physical and chemical properties of the prepared materials were characterized by XRD, SEM, TEM, and BET. The synthesized copper sulfide was used as an adsorbent for removing 17α-ethynyl estradiol (EE2) and exhibited excellent adsorption properties. At 25°C, 15 mg of adsorbent was applied for 50 mL of 5 mg/L EE2 solution, adsorption equilibrium was reached after 180 min, and the adsorption rate reached nearly 90%. In addition, the kinetics, isothermal adsorption, and thermodynamics of the adsorption process were discussed on the basis of theoretical calculations and experimental results. The theoretical maximum adsorption capacity of copper sulfide was calculated to be 147.06 mg/g. The results of this study indicated that copper sulfide was a stable and efficient adsorbent with promising practical applications.

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Morphology controlled synthesis and photocatalytic study of novel CuS-Bi2O2CO3 heterojunction system for chlorpyrifos degradation under visible light illumination

Cited by 93 publications

References 69 publications

Design of a Non‐Cytotoxic ZnFe₂O₄‐CeO₂/BRGO Direct Z‐Scheme Photocatalyst with Bioreduced Graphene Oxide as Cocatalyst

Design of a Non‐Cytotoxic ZnFe₂O₄‐CeO₂/BRGO Direct Z‐Scheme Photocatalyst with Bioreduced Graphene Oxide as Cocatalyst

Visible‐Light‐Assisted Photocatalytic Degradation of Phenolic Compounds Using Bi₂S₃/Bi₂W₂O₉ Heterostructure Materials as Photocatalyst

Preparation of Nano-Copper Sulfide and Its Adsorption Properties for 17α-Ethynyl Estradiol

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Morphology controlled synthesis and photocatalytic study of novel CuS-Bi2O2CO3 heterojunction system for chlorpyrifos degradation under visible light illumination

Cited by 93 publications

References 69 publications

Design of a Non‐Cytotoxic ZnFe2O4‐CeO2/BRGO Direct Z‐Scheme Photocatalyst with Bioreduced Graphene Oxide as Cocatalyst

Design of a Non‐Cytotoxic ZnFe2O4‐CeO2/BRGO Direct Z‐Scheme Photocatalyst with Bioreduced Graphene Oxide as Cocatalyst

Visible‐Light‐Assisted Photocatalytic Degradation of Phenolic Compounds Using Bi2S3/Bi2W2O9 Heterostructure Materials as Photocatalyst

Preparation of Nano-Copper Sulfide and Its Adsorption Properties for 17α-Ethynyl Estradiol

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Design of a Non‐Cytotoxic ZnFe₂O₄‐CeO₂/BRGO Direct Z‐Scheme Photocatalyst with Bioreduced Graphene Oxide as Cocatalyst

Design of a Non‐Cytotoxic ZnFe₂O₄‐CeO₂/BRGO Direct Z‐Scheme Photocatalyst with Bioreduced Graphene Oxide as Cocatalyst

Visible‐Light‐Assisted Photocatalytic Degradation of Phenolic Compounds Using Bi₂S₃/Bi₂W₂O₉ Heterostructure Materials as Photocatalyst