Direct dual-Z-scheme PANI/Ag2O/Cu2O heterojunction with broad absorption range for photocatalytic degradation of methylene blue

Guleria, Ankita; Sharma, Rohit; Singh, Amritpal; Upadhyay, Navneet Kumar; Shandilya, Pooja

doi:10.1016/j.jwpe.2021.102305

Cited by 29 publications

(17 citation statements)

References 64 publications

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“…On the other hand, perovskite heterojunctions are emerging as a promising material for high-performance photocatalytic applications. The heterojunctions present two independent band gaps, which overlapped, and hence, e − − h + can be shuttled in direct migration from one level to another through the interface (Schottky barrier) (Guleria et al, 2021). The Schottky barrier is that through which e − − h + movement inhibited the charge carrier recombination and thus prolonged the lifetime of e − − h + pairs.…”

Section: Lifetime Of the Charge Carriers In Perovskitesmentioning

confidence: 99%

Potential Application of Perovskite Structure for Water Treatment: Effects of Band Gap, Band Edges, and Lifetime of Charge Carrier for Photocatalysis

Chacaliaza-Ricaldi²,

Marega³

2022

Front. Nanotechnol.

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Perovskite structures have attracted scientific interest as a promising alternative for water treatment due to their unique structural, high oxidation activity, electronic stability, and optical properties. In addition, the photocatalytic activity of perovskite structures is higher than that of many transition metal compounds. A critical property that determines the high-performance photocatalytic and optical properties is the band gap, lifetime of carrier charge, and band edges relative to the redox potential. Thus, the synthesis/processing and study of the effect on the band gap, lifetime of carrier charge, and band edges relative to the redox potential in the development of high-performance photocatalysts for water treatment are critical. This review presents the basic physical principles of optical band gaps, their band gap tunability, potentials, and limitations in the applications for the water treatment. Furthermore, it reports recent advances in the synthesis process and comparatively examines the band gap effect in the photocatalytic response. In addition to the synthesis, the physical mechanisms associated with the change in the band gap have been discussed. Finally, the conclusions of this review, along with the current challenges of perovskites for photocatalysis, are presented.

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Section: Lifetime Of the Charge Carriers In Perovskitesmentioning

confidence: 99%

Potential Application of Perovskite Structure for Water Treatment: Effects of Band Gap, Band Edges, and Lifetime of Charge Carrier for Photocatalysis

Chacaliaza-Ricaldi²,

Marega³

2022

Front. Nanotechnol.

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“…S9 † shows the ciprofloxacin degradation pathway mechanism through a hydroxyl radical strike which is due to UV irradiation on the catalyst surface. [41][42][43][44] The production of the first intermediate with an m/z value of 288 was afforded due to the direct abstraction of -CO 2 from the CIP structure which originally exhibited an m/z value of 332. Further, the second intermediate with an m/z value of 346 was produced due to liberation of two hydrogen atoms and direct substitution of oxygen.…”

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

Zinc ferrite-graphitic carbon nitride nanohybrid for photo-catalysis of the antibiotic ciprofloxacin

Mishra

Srikanth

Tammineni

et al. 2022

Catal. Sci. Technol.

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“…There are also three migration paths way for carriers in the double Z‐scheme mechanism. (I) The CB of SE II combines with the h + in the VB of SE I and SE III through the electrical potential difference, thus achieving effective separation of the e − ‐h + pairs [42] . These photogenerated h + and e − participate in the redox reaction in the degradation process, as shown in Figure 6(a).…”

Section: Categories Of Type‐ii Heterojunction Systemmentioning

confidence: 99%

“…(I) The CB of SE II combines with the h + in the VB of SE I and SE III through the electrical potential difference, thus achieving effective separation of the e À -h + pairs. [42] These photogenerated h + and e À participate in the redox reaction in the degradation process, as shown in Figure 6(a). (II) The photogenerated e À on the CB of SE I and SE III flow into the VB of SE II respectively, and recombination with the h + in the VB of SE II.…”

Section: Multi Component Hybrid Heterostructuresmentioning

confidence: 99%

“…[28][29][30] Thus, Cu 2 O has been digging deeper into energy conversion, [31,32] sensor technology, [33][34][35] and catalysis. [36][37][38] There are various methods for Cu 2 O preparation, including electrodeposition, [39][40][41] solvothermal, [20,42] precipitation, [43,44] water-bath, [45,46] hydrothermal, [47][48][49][50] and magnetron sputtering. [51,52] Moreover, Cu 2 O has controllable morphology, such as cube, [53,54] octahedron, [55,56] nanowire, [57,58] and hollow ball.…”

Section: Introductionmentioning

confidence: 99%

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Research Progress on Cu₂O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics

Wang

Yang

et al. 2022

ChemistrySelect

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Photocatalytic degradation technology, using solar energy as the driving force, is considered the most possible alternative to remediate environmental pollution. And it is essential to find a stable and efficient photocatalyst. As promising semiconductor-based photocatalysts, Cu 2 O has acquired massive attention owning to its high conduction band energy, superior visiblelight response-ability, low cost, eco-friendly, and abundance. However, the application of origin Cu 2 O faces severe problems due to its photocorrosion and low photoinduced carrier separation. Consequently, it is necessary to improve its photo-stability and photocatalytic activity by carrying out numerous modification strategies, such as heterostructure construction. Herein, we first summarize the classification and operation principles of Cu 2 O-based type-II heterojunction. Then, the application of the Cu 2 O-based type-II heterojunction photocatalysts for the removal of tetracyclines, quinolones, and sulfonamides have been discussed. Finally, the pressing issues and perspectives in Cu 2 O-based type-II heterojunction photocatalysts application for degrading antibiotics have prospected.

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Direct dual-Z-scheme PANI/Ag2O/Cu2O heterojunction with broad absorption range for photocatalytic degradation of methylene blue

Cited by 29 publications

References 64 publications

Potential Application of Perovskite Structure for Water Treatment: Effects of Band Gap, Band Edges, and Lifetime of Charge Carrier for Photocatalysis

Potential Application of Perovskite Structure for Water Treatment: Effects of Band Gap, Band Edges, and Lifetime of Charge Carrier for Photocatalysis

Zinc ferrite-graphitic carbon nitride nanohybrid for photo-catalysis of the antibiotic ciprofloxacin

Research Progress on Cu₂O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics

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Direct dual-Z-scheme PANI/Ag2O/Cu2O heterojunction with broad absorption range for photocatalytic degradation of methylene blue

Cited by 29 publications

References 64 publications

Potential Application of Perovskite Structure for Water Treatment: Effects of Band Gap, Band Edges, and Lifetime of Charge Carrier for Photocatalysis

Potential Application of Perovskite Structure for Water Treatment: Effects of Band Gap, Band Edges, and Lifetime of Charge Carrier for Photocatalysis

Zinc ferrite-graphitic carbon nitride nanohybrid for photo-catalysis of the antibiotic ciprofloxacin

Research Progress on Cu2O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics

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Research Progress on Cu₂O‐based Type‐II Heterojunction Photocatalysts for Photocatalytic Removal of Antibiotics