Efficient removal of bisphenol A and Cr(VI) simultaneously in an advanced redox photoelectrocatalytic system over dual 3D TiO2 photoelectrodes

Hu, Yiqiong; Jin, Yusuke; Zhang, Pan; Zhang, Yanan; Zhao, Guohua

doi:10.1016/j.apcatb.2022.122102

Cited by 32 publications

(4 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… , Additionally, peaks at 458.1 and 463.8 eV are characteristic of the 4+ oxidation state of titanium as Ti 4+ (Figure S3d). These results confirm the successful creation of TiO 2 nanotubes and the subsequent deposition of Pd on them (Pd/TNTAs). The capability of this Pd/TNTA cathode to facilitate H* generation is supported by the CV images illustrated in Figure a.…”

Section: Resultssupporting

confidence: 76%

Enhanced Mineralization of Organic Pollutants through Atomic Hydrogen-Mediated Alternative Transformation Pathways

Wang,

Zhang,

Zhang

et al. 2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

Section: Resultssupporting

confidence: 76%

Enhanced Mineralization of Organic Pollutants through Atomic Hydrogen-Mediated Alternative Transformation Pathways

Wang,

Zhang,

Zhang

et al. 2024

Environ. Sci. Technol.

View full text Add to dashboard Cite

“…The coordination environment of atoms can be observed by EPR, [29] the intensity of the resonance magnetic field reflects the number of unpaired electrons, and the strongest front of the C 0.7 IS-30 curve indicates that its crystal surface has the highest number of unpaired electrons and forms a larger number of S vacancies, C 0.7 IS-30 can provide more active sites. [30] Figure 1 shows the XRD patterns of CdS (Curves 1), C 0.7 IS (Curves 2), and C 0.7 IS-30 (Curves 3). Curve 1 shows the diffraction peaks of CdS at 2θ = 26.7°, 2θ = 24.8°, and 28.2°, corresponding to the (002), (100), and (101) crystallographic planes of CdS, respectively, which are in good agreement with the indices of the standard card 77-2306, and means the successful preparation of hexagonal CdS.…”

Section: Microscopic Morphology and Structurementioning

confidence: 99%

Synergistic Mechanism of 0D Internal and Surface Defects Regulation Coupled with Pyroelectric Effects for Optimizing the Photoelectrocatalytic Properties of CdS

Chen,

Liu,

Ruan

et al. 2023

ChemCatChem

View full text Add to dashboard Cite

Rational defect regulation is an effective way to enhance the performance of photoelectrocatalytic (PEC) water splitting. In this paper, we firstly constructed internal and surface defects to modulate the crystal structure of CdS, and investigated the synergistic impact of 0D (0‐dimensional) internal and surface defects regulation coupled with pyroelectric effects for optimizing the photoelectrocatalytic properties of CdS. It was found that the synergistic impact had a significant enhancement effect on the carrier separation and transfer, and the current density reached 3.93 mA/cm2 at 1.23 V vs. RHE increased by 16.38 times, meanwhile, the stability of the photoelectrodes was greatly promoted. The advantages and intrinsic relationships are also described: the formation of 0D dual‐type of defects alters the atomic arrangement in the crystal, optimizes the energy band structure, reduces carrier recombination, and increases carrier density. What's more, the introduction of defects induces electron redistribution and changes the state of dipoles inside the crystal, thus increasing built‐in electric field and generating more thermally generated carriers to optimize the pyroelectric effect. This work demonstrates the feasibility of defect modulation for optimizing pyroelectric performance and photocatalytic performance and bringing new light to PEC water splitting.

show abstract

“…Thus, devising a method that not only efficiently removes particularly stubborn organic pollutants but also recovers the considerable chemical energy that they contain is of great interest. The photocatalytic fuel cell (PFC), a burgeoning technology for degrading organic pollutants and generating power, has been garnering increasing attention. − A standard PFC system comprises a photoanode and a cathode housed in a chamber energized by solar light. Upon exposure to light, the photoanode generates charge carriers, such as holes and electrons.…”

Section: Introductionmentioning

confidence: 99%

Engineering ZnIn₂S₄ Nanoflowers on NiCo₂S₄ Cathode for Enhanced H₂O₂ Production Boosting Tetracycline Degradation and Synchronous Power Output

Xia,

Cheng,

et al. 2024

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

In this study, ZnIn 2 S 4 nanoflowers were deposited on the surface of NiCo 2 S 4 hexahedrons using nickel foam (NF) as the substrate, employing a facile two-step solvothermal approach. The fabricated ZnIn 2 S 4 /NiCo 2 S 4 /NF cathode, in conjunction with a TiO 2 − Si solar panel integrated photoanode, was employed to assemble a photocatalytic fuel cell (PFC) aimed at treating tetracycline (TC) in wastewater and simultaneously generating electricity. The results reveal that the PFC featuring the ZnIn 2 S 4 /NiCo 2 S 4 cathode significantly enhanced the yield of H 2 O 2 (260 μmol/L), which was 3.3 times higher than that of the PFC with the NiCo 2 S 4 cathode (78 μmol/L). The constructed PFC exhibits the capability to function across a broad pH range of 3−11, achieving its peak degradation efficiency at pH 7. Under optimized conditions, the system exhibited a high TC removal efficiency of 96.7% within 60 min, alongside remarkable electricity generation, achieving a short-circuit current density of 0.69 mA cm −2 and a maximum power density of 0.53 mW cm −2 . Quenching experiments and electron paramagnetic resonance analyses indicate that 1 O 2 ,• O 2− , • OH, and h + species are generated in the system, with • O 2 and 1 O 2 primarily contributing to the TC degradation process. This research offers new perspectives on the strategic design of cathodes in PFC systems for the effective degradation of organic pollutants and concurrent electricity generation.

show abstract

Efficient removal of bisphenol A and Cr(VI) simultaneously in an advanced redox photoelectrocatalytic system over dual 3D TiO2 photoelectrodes

Cited by 32 publications

References 56 publications

Enhanced Mineralization of Organic Pollutants through Atomic Hydrogen-Mediated Alternative Transformation Pathways

Enhanced Mineralization of Organic Pollutants through Atomic Hydrogen-Mediated Alternative Transformation Pathways

Synergistic Mechanism of 0D Internal and Surface Defects Regulation Coupled with Pyroelectric Effects for Optimizing the Photoelectrocatalytic Properties of CdS

Engineering ZnIn₂S₄ Nanoflowers on NiCo₂S₄ Cathode for Enhanced H₂O₂ Production Boosting Tetracycline Degradation and Synchronous Power Output

Contact Info

Product

Resources

About

Efficient removal of bisphenol A and Cr(VI) simultaneously in an advanced redox photoelectrocatalytic system over dual 3D TiO2 photoelectrodes

Cited by 32 publications

References 56 publications

Enhanced Mineralization of Organic Pollutants through Atomic Hydrogen-Mediated Alternative Transformation Pathways

Enhanced Mineralization of Organic Pollutants through Atomic Hydrogen-Mediated Alternative Transformation Pathways

Synergistic Mechanism of 0D Internal and Surface Defects Regulation Coupled with Pyroelectric Effects for Optimizing the Photoelectrocatalytic Properties of CdS

Engineering ZnIn2S4 Nanoflowers on NiCo2S4 Cathode for Enhanced H2O2 Production Boosting Tetracycline Degradation and Synchronous Power Output

Contact Info

Product

Resources

About

Engineering ZnIn₂S₄ Nanoflowers on NiCo₂S₄ Cathode for Enhanced H₂O₂ Production Boosting Tetracycline Degradation and Synchronous Power Output