One-pot in-situ hydrothermal synthesis of ternary In2S3/Nb2O5/Nb2C Schottky/S-scheme integrated heterojunction for efficient photocatalytic hydrogen production

Tayyab, Muhammad; Liu, Yujie; Liu, Zhiguo; Pan, Lihan; Xu, Zehong; Yue, Wenhui; Zhou, Liang; Lei, Juying; Zhang, Jinlong

doi:10.1016/j.jcis.2022.08.071

Cited by 197 publications

(32 citation statements)

References 46 publications

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“…In addition to its unique acidity and photoredox properties, Nb 2 O 5 has good stability in organic acid solutions. [33][34][35][36][37][38][39] However, the limited light absorption of Nb 2 O 5 limits the improvement of its photocatalytic performance.…”

Section: Introductionmentioning

confidence: 99%

Unveiling S‐Scheme Charge Transfer Pathways in In₂S₃/Nb₂O₅ Hybrid Nanofiber Photocatalysts for Low‐Concentration CO₂ Hydrogenation

et al. 2022

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Unveiling the charge separation and transfer pathways and exploring low‐cost and durable heterojunction photocatalysts are still two key challenges in achieving high‐efficient solar fuel generation from low‐concentration carbon dioxide. Herein, the layered In2S3‐modified Nb2O5 hybrid nanofiber photocatalysts with core–shell structures for efficient low‐concentration CO2 hydrogenation are constructed. The as‐prepared binary S‐scheme photocatalysts show excellent CO generation of 60.36 μmol g−1 h−1, which is 5.6 and 3.8 times higher than that of Nb2O5 and In2S3, which not only exhibits the CO generation in low‐concentration CO2 but also is superior to most photocatalysts without sacrificial agents or cocatalysts. In situ illuminated X‐ray photoelectron spectroscopy analysis indicates the S‐scheme charge transfer pathways formed due to the unmatched Fermi level, creating an internal electric field at the core/shell interface, driving the separation of the photoexcited charge carriers. This work will provide a promising strategy for constructing nanofiber‐based heterojunction photocatalysts for efficient low‐concentration CO2 hydrogenation reactions.

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Section: Introductionmentioning

confidence: 99%

Unveiling S‐Scheme Charge Transfer Pathways in In₂S₃/Nb₂O₅ Hybrid Nanofiber Photocatalysts for Low‐Concentration CO₂ Hydrogenation

et al. 2022

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“…Su et al prepared a Nb 2 O 5 /C/Nb 2 C T x composite for H 2 evolution; it is 4 times as high as pure Nb 2 O 5 , but the rate of H 2 generation is relatively low, only 7.81 μmol h –1 g –1 . Most recently, Tayyab et al synthesized ternary In 2 S 3 /Nb 2 O 5 /Nb 2 C T x for H 2 evolution; unfortunately, the HER rate is only 68.8 μmol h –1 g –1 . In our previous research, we deposited a noble metal on 1D/2D Nb 2 O 5 @Nb 2 C T x for efficient H 2 evolution; , in this research, the Ru/Nb 2 O 5 @Nb 2 C T x composite achieved 10.11 mmol h –1 g –1 , with an AQE value of 41.25% at 313 nm .…”

Section: Introductionmentioning

confidence: 74%

“…48 Furthermore, it is much superior to that of the recently reported Schottky/Sscheme In 2 S 3 /Nb 2 O 5 /Nb 2 CT x heterojunction (68.8 μmol g −1 h −1 ). 47 Detailed comparisons are provided in Table S1.…”

Section: Resultsmentioning

confidence: 99%

“…Because the VB potential of CdS (1.15 V) is smaller than the redox potential of H 2 O/·OH (2.38 V vs NHE) or OH – /·OH (1.99 V vs NHE) (Figure f), the VB holes of the pure CdS cannot react directly with H 2 O or OH – to produce ·OH. However, the faint ·OH signal in pure CdS may have resulted from the conversion of ·O 2 – into ·OH. ,, …”

Section: Resultsmentioning

confidence: 99%

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S-Scheme and Schottky Junction Synchronous Regulation Boost Hierarchical CdS@Nb₂O₅/Nb₂CT_x (MXene) Heterojunction for Photocatalytic H₂ Production

Chen

Wang

Zhang

et al. 2023

ACS Appl. Mater. Interfaces

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Photocatalytic water cracking hydrogen (H2) production is a promising clean energy production technology. Therefore, a ternary CdS@Nb2O5/Nb2CT x (MXene) heterojunction with hierarchical structure was designed to promote photocatalytic H2 evolution. When Na2S/Na2SO3 and lactic acid were used as sacrificial agents, the hydrogen evolution reaction (HER) rates of the optimized photocatalyst were 1501.7 and 2715.8 μmol g–1 h–1, with 12.4% and 26.1% apparent quantum efficiencies (AQE) at 420 nm, respectively. Its HER performance was 10.9-fold higher than that of pure CdS and remained 87% activity after five rounds of cycle tests. Such an enhancement stems from the excellent light absorption properties, tight interfacial contact, fast charge transfer channel, and sufficient active sites. Mechanism analysis demonstrates that S-scheme and Schottky junction synchronous regulation boost hierarchical CdS@Nb2O5/Nb2CT x for photocatalytic H2 production. This work creates possibilities for manufacturing Nb-based MXene photocatalysts for converting solar energy and other applications.

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“…Environmental pollution has become an apparent threat to the current generation, at present access to non-contaminated water and other environmental resources have become a comprehensive challenge for humanity (Cui et al 2017). Water resources have been heavily polluted in recent decades by incorporating massive amounts of various synthetic dyes (Mrunal et al 2019), pharmaceuticals drugs (Majumder et al 2020), pesticides (Moradeeya et al 2022), personal care products, and other industrial chemicals (Oluwole et al 2020) (Tayyab et al 2022a). The increased population, global industrialization, and over-exploitation of hazardous chemicals have become major reasons for reduced potable water sources (Bhuvaneswari et al 2021a).…”

Section: Introductionmentioning

confidence: 99%

Development of Bi2S3/Cu2S hetrojuction as an effective photocatalysts for the efficient degradation of antibiotic drug and organic dye

Parasuraman

Vasanthakumar

Kandasamy

et al. 2023

Environ Sci Pollut Res

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Herein, a Bi 2 S 3 /Cu 2 S was successfully synthesized via a simple one-step wet impregnation process. The compositional behavior and electrical and optical properties of photocatalysts were investigated in detail. Photocatalytic technology has shown great promise in wastewater treatment, splitting water to hydrogen, and converting CO 2 to fuel. Researchers or scientist are attempting to design sulfate-based heterojunction photocatalytic systems in order to develop novel photocatalysts with excellent performance. Photodegradation of methylene blue (MB) dye and tetracycline (TC) drug under visible light irradiation was used to assess the photocatalytic activity of as-prepared samples. As a result, 2:1% wt of Bi 2 S 3 /Cu 2 S heterostructure composite revealed superior visible light degradation performing of MB dye, and TC drug efficiency as 90.2% and 87.5%, respectively. The prepared hybrid photocatalyst has demonstated a potential for use in the photocatalytic degradation of antibiotic durgs and dyes, indicating a promissing future for its application. Supplementary Information The online version contains supplementary material available at 10.1007/s11356-023-26627-9.

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One-pot in-situ hydrothermal synthesis of ternary In2S3/Nb2O5/Nb2C Schottky/S-scheme integrated heterojunction for efficient photocatalytic hydrogen production

Cited by 197 publications

References 46 publications

Unveiling S‐Scheme Charge Transfer Pathways in In₂S₃/Nb₂O₅ Hybrid Nanofiber Photocatalysts for Low‐Concentration CO₂ Hydrogenation

Unveiling S‐Scheme Charge Transfer Pathways in In₂S₃/Nb₂O₅ Hybrid Nanofiber Photocatalysts for Low‐Concentration CO₂ Hydrogenation

S-Scheme and Schottky Junction Synchronous Regulation Boost Hierarchical CdS@Nb₂O₅/Nb₂CT_x (MXene) Heterojunction for Photocatalytic H₂ Production

Development of Bi2S3/Cu2S hetrojuction as an effective photocatalysts for the efficient degradation of antibiotic drug and organic dye

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One-pot in-situ hydrothermal synthesis of ternary In2S3/Nb2O5/Nb2C Schottky/S-scheme integrated heterojunction for efficient photocatalytic hydrogen production

Cited by 197 publications

References 46 publications

Unveiling S‐Scheme Charge Transfer Pathways in In2S3/Nb2O5 Hybrid Nanofiber Photocatalysts for Low‐Concentration CO2 Hydrogenation

Unveiling S‐Scheme Charge Transfer Pathways in In2S3/Nb2O5 Hybrid Nanofiber Photocatalysts for Low‐Concentration CO2 Hydrogenation

S-Scheme and Schottky Junction Synchronous Regulation Boost Hierarchical CdS@Nb2O5/Nb2CTx (MXene) Heterojunction for Photocatalytic H2 Production

Development of Bi2S3/Cu2S hetrojuction as an effective photocatalysts for the efficient degradation of antibiotic drug and organic dye

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Unveiling S‐Scheme Charge Transfer Pathways in In₂S₃/Nb₂O₅ Hybrid Nanofiber Photocatalysts for Low‐Concentration CO₂ Hydrogenation

Unveiling S‐Scheme Charge Transfer Pathways in In₂S₃/Nb₂O₅ Hybrid Nanofiber Photocatalysts for Low‐Concentration CO₂ Hydrogenation

S-Scheme and Schottky Junction Synchronous Regulation Boost Hierarchical CdS@Nb₂O₅/Nb₂CT_x (MXene) Heterojunction for Photocatalytic H₂ Production