Ternary Z-Scheme Heterojunction of Bi2WO6 with Reduced Graphene Oxide (rGO) and Bi25FeO40 for Enhanced Visible-Light Photocatalysis

Zhang, Rui; Zhao, Chen; Yu, Li; Liu, Yi; Zeng, Kunlin

doi:10.1007/s10904-019-01385-9

Cited by 13 publications

(3 citation statements)

References 40 publications

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“…In addition, the peaks at 2870 and 1066 cm À 1 results from the aliphatic CÀ H and the CÀ OÀ C (alkoxy) stretching from 3-oligo (ethylene oxide) group. [35] Chemical bond between PD2ET to the acyl chloride inter-mediates (SWCNTs-COCl) by esterification reaction was verified by the appearance of peaks at 1740 and 1257 cm À 1 due to the ester C=O and CÀ O stretching vibrations, respectively. In addition, the observation of the strong absorption bands at 2924 and 2854 cm À 1 due to aliphatic CÀ H stretching of PD2ET, and a new stretch at 1069 cm À 1 ascribed to the CÀ OÀ C stretching vibrations from the alkoxy linkages provide another evidences for the presence of PD2ET in the PD2ET-g-SWCNTs hybrids.…”

Section: Resultsmentioning

confidence: 98%

Polythiophene Grafted onto Single‐Wall Carbon Nanotubes through Oligo(ethylene oxide) Linkages for Supercapacitor Devices with Enhanced Electrochemical Performance

Zhou

Gong

et al. 2019

ChemElectroChem

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Poly(3‐oligo(ethylene oxide))thiophene (PD2ET) with an ethanolamine terminal in the side chain was covalently grafted onto the surface of single‐walled carbon nanotube bundles (PD2ET‐g‐SWCNTs) by using an esterification reaction. The chemical bond between PD2ET and the SWCNTs is confirmed by using various techniques, such as Fourier transform infrared (FTIR), Raman spectroscopy, and X‐ray photoelectron spectroscopy (XPS) analysis. The microstructural and morphological investigation revealed a good distribution of PD2ET on the surface of the SWCNTs, with a thickness of about 2–3 nm. As an electroactive material, the fabricated PD2ET‐g‐SWCNTs electrode demonstrated high capacitive performance in electrochemical tests, in which an efficient specific capacitance of 399 F/g at 1 A/g was obtained from galvanostatic charge/discharge techniques. Furthermore, the long‐term stability investigation of PD2ET‐g‐SWCNTs electrode showed that over 91 % capacitance retention could be retained after 8000 successive charge/discharge cycles. The integrated two‐electrode supercapacitor based on the PD2ET‐g‐SWCNTs hybrid exhibited a high energy density of 22.5 Wh/kg and a power density of 500 W/kg at 0.625 A/g. The enhanced electrochemical behavior of the PD2ET‐g‐SWCNTs hybrid can be ascribed to the contribution of oligo(ethylene oxide), which facilitates ion diffusion and enables a faster charge process, thus rendering high efficiency in supercapacitors.

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Section: Resultsmentioning

confidence: 98%

Polythiophene Grafted onto Single‐Wall Carbon Nanotubes through Oligo(ethylene oxide) Linkages for Supercapacitor Devices with Enhanced Electrochemical Performance

Zhou

Gong

et al. 2019

ChemElectroChem

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“…This enhancement in photocatalytic properties is due to the efficient charge transfer between Bi2WO6 and Bi25FeO40 and the smaller bandgap in this nanocomposite compared to a single component. Additionally, the high surface area and enhanced light absorption of the produced heterojunction contribute to its superior photocatalytic properties [103]. Besides this, Bi2MoO6/rGO/BiOBr heterostructure was developed by Zhang et al to degrade nor- Nevertheless, it is still necessary to summarize what has been done in the literature to know where we stand in terms of different materials' fabrication and the efficiency of elimination.…”

Section: Photocatalytic Degradation Of Norfloxacinmentioning

confidence: 99%

Review on the Visible Light Photocatalysis for the Decomposition of Ciprofloxacin, Norfloxacin, Tetracyclines, and Sulfonamides Antibiotics in Wastewater

2021

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Antibiotics are chemical compounds that are used to kill or prevent bacterial growth. They are used in different fields, such as the medical field, agriculture, and veterinary. Antibiotics end up in wastewater, which causes the threat of developing antibacterial resistance; therefore, antibiotics must be eliminated from wastewater. Different conventional elimination methods are limited due to their high cost and effort, or incomplete elimination. Semiconductor-assisted photocatalysis arises as an effective elimination method for different organic wastes including antibiotics. A variety of semiconducting materials were tested to eliminate antibiotics from wastewater; nevertheless, research is still ongoing due to some limitations. This review summarizes the recent studies regarding semiconducting material modifications for antibiotic degradation using visible light irradiation.

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“…For example, Rao et al reported enhanced photocatalytic performance of C 3 N 4 with layers of MoS 2 and nitrogenated rGO ternary heterojunction which attributed to the effective separation of the generated electron-hole pairs introduced by the internal electric field built by nitrogenated rGO interlayers [26]. Zhang et al reported the synthesis ternary Bi 2 WO 6 /Bi 25 FeO 40 /rGO heterojunction that presented higher photocatalytic activity due to the effective charge separation, better light absorption and large surface area [27]. Accordingly, ternary heterojunctions have the leverage to efficiently separate the photogenerated electron-hole pairs due to the synergistic effect of multicomponents' heterojunction.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic reduction of 4-nitroaniline in aqueous solution using BiOCl/BiOBr/rGO ternary heterojunction under simulated UV–visible light irradiation

Alismaail

Ahmed

Bakiro

et al. 2021

Photochem Photobiol Sci

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BiOCl/BiOBr/rGO ternary heterojunctions were synthesized and characterized, and their photocatalytic activities were examined. Three different rGO mass ratios were incorporated into BiOCl 75% BiOBr 25% ; 1% rGO, 3% rGO, and 5% rGO, respectively. The successful incorporation of rGO into the composites was confirmed using powder X-ray diffraction (PXRD). Furthermore, calculated band gap, elemental composition, and composites' morphology were investigated using UV-visible (UV-Vis) diffuse reflectance spectroscopy (DRS), energy-dispersive X-ray spectroscopy (EDX), and scanning electron microscopy (SEM), respectively. The photocatalytic activities of the ternary heterojunctions were evaluated toward the photocatalytic reduction of 4-nitroaniline (4-NA) in aqueous solution. Experimental results reveal that rGO incorporation enhances the activity of the prepared heterojunction photocatalysts, where photocatalyst containing 5% rGO exhibited the highest activity achieving rate of 0.84 min −1 .

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Ternary Z-Scheme Heterojunction of Bi2WO6 with Reduced Graphene Oxide (rGO) and Bi25FeO40 for Enhanced Visible-Light Photocatalysis

Cited by 13 publications

References 40 publications

Polythiophene Grafted onto Single‐Wall Carbon Nanotubes through Oligo(ethylene oxide) Linkages for Supercapacitor Devices with Enhanced Electrochemical Performance

Polythiophene Grafted onto Single‐Wall Carbon Nanotubes through Oligo(ethylene oxide) Linkages for Supercapacitor Devices with Enhanced Electrochemical Performance

Review on the Visible Light Photocatalysis for the Decomposition of Ciprofloxacin, Norfloxacin, Tetracyclines, and Sulfonamides Antibiotics in Wastewater

Photocatalytic reduction of 4-nitroaniline in aqueous solution using BiOCl/BiOBr/rGO ternary heterojunction under simulated UV–visible light irradiation

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