Reusable and environmentally friendly cellulose nanofiber/titanium dioxide/chitosan aerogel photocatalyst for efficient degradation of tetracycline

Applied Surface Science, Journal Year: 2023, Volume and Issue: 641, P. 158425 - 158425

Published: Sept. 13, 2023

Language: Английский

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Improving the Stability of Halide Perovskites for Photo‐, Electro‐, Photoelectro‐Chemical Applications

Advanced Functional Materials, Journal Year: 2023, Volume and Issue: 34(12)

Published: Dec. 6, 2023

Abstract Owing to their remarkable and adjustable optoelectronic properties, halide perovskites (HPs) have been regarded as a class of promising materials for various applications based on different energy conversion reactions, including photovoltaic cell, photocatalysis, electrocatalysis, photoelectrochemical (PEC) systems. However, the low stability HPs upon exposure ambient conditions (e.g., water, heat, light, electricity) greatly hinders practical HPs. In past few years, significant efforts devoted enhancing eventual perovskite‐based systems, mainly focusing delivering improvements in stabilities perovskite relevant operation which deserve in‐depth systematic summaries. this comprehensive review, environment‐induced decomposition mechanisms typical are elucidated. Simultaneously, strategies addressing instability issues critically reviewed, dimension control, compositional engineering, ligand passivation, encapsulation engineering. Furthermore, photoelectric modified discussed systematically. last part future perspectives outlooks toward envisaged respectively.

Language: Английский

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Design of ultrathin CoAl-LDHs/ZnIn2S4 with strong interfacial bonding and rich oxygen vacancies for highly efficient hydrogen evolution activity

Journal of Colloid and Interface Science, Journal Year: 2023, Volume and Issue: 651, P. 138 - 148

Published: July 31, 2023

Language: Английский

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Recent Advances of Lead-Free Halide Perovskites: From Synthesis to Applications

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: 12(28), P. 10267 - 10329

Published: Jan. 1, 2024

The recent progress and development directions in lead-free perovskites are summarized from the perspective of device physics materials science.

Language: Английский

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ZIF‐8@CsPbBr₃ Nanocrystals Formed by Conversion of Pb to CsPbBr₃ in Bimetallic MOFs for Enhanced Photocatalytic CO₂ Reduction

Small Methods, Journal Year: 2024, Volume and Issue: unknown

Published: Feb. 20, 2024

Abstract Perovskite nanocrystals are embedded into metal–organic frameworks (MOFs) to create composites with high light absorption coefficients, tunable electronic properties, specific surface area, and metal atom tunability for enhanced photocatalytic carban dioxide (CO 2 ) reduction. However, existing perovskite‐MOF structures a large particle size achieved based on Pb source adsorption the pores of MOFs, which can significantly break down porous structure, thereby resulting in decreased area impacting CO adsorption. Herein, novel structure synthesis bimetallic Pb‐containing MOFs post‐processing convert CsPbBr 3 (NCs) is proposed. It discovered that additional not introduced by adsorption, but instead engages coordination generates Pb‐N. The produced ZIF‐8@CsPbBr NCs ≈40 nm have an ultra‐high 1325.08 m g −1 , excellent photovoltaic characteristics, beneficial conversion rate 450 mol h more than three times pure perovskites. Additionally, superior reduction capacity sustained after undergoing four cycles. Density Functional Thoery (DFT) simulations used explore 3D charge density at interface better understand electrical structure.

Language: Английский

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Perovskite Paradigm Shift: A Green Revolution with Lead-Free Alternatives in Photocatalytic CO₂ Reduction

ACS Energy Letters, Journal Year: 2024, Volume and Issue: 9(4), P. 1932 - 1975

Published: April 4, 2024

Carbon dioxide (CO2), an archetypal greenhouse gas, can be transformed into valuable fuels through photocatalysis, presenting auspicious avenue for combating global climate change and energy crisis. While halide perovskites have sparked substantial research interest, concerns over lead toxicity spurred exploration of their lead-free counterparts CO2 photoreduction. This comprehensive Review navigates the fundamentals reduction, delving basic principles, mechanisms, relevant operando techniques. It then introduces diverse structures (LFHPs), synthesis methodologies, intrinsic properties that render them suitable Subsequently, unfolds application modification strategies light-driven conversion, highlighting breakthroughs shedding light on potential mechanisms. Finally, current challenges to tailor LFHPs robust photocatalytic reduction are critically discussed, offering insights future in this realm. aims illuminate path toward sustainable bridging knowledge gaps inspiring innovations a greener carbon-neutral tomorrow.

Language: Английский

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Internal electric field promoted charge separation via bismuth-based ternary heterojunctions with near-infrared light harvesting properties for efficient photoredox reactions

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(29), P. 18498 - 18511

Published: Jan. 1, 2024

This study highlights the single-step growth of Bi/Bi 2 WO 6 /Bi S 3 on CdS nanorods and their built-in electric field modulated charge separation toward a UV-vis-NIR driven photocatalytic H evolution reaction.

Language: Английский

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Flexible room temperature gas sensor based on α-Fe2O3/Ti3C2Tx MXene composites for ppb-level H2S detection

Sensors and Actuators B Chemical, Journal Year: 2024, Volume and Issue: 421, P. 136543 - 136543

Published: Aug. 27, 2024

Language: Английский

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S-scheme charge transfer and photoinduced self-heating effect synergistically enhance the solar-driven CO2 reduction over Cs3Bi2Br9/Bi2S3 hybrid

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 493, P. 152473 - 152473

Published: May 22, 2024

Language: Английский

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Novel metal oxides partially derived perovskite-structured hydroxides for room temperature trace NO2 gas sensors under UV irradiation

Talanta, Journal Year: 2024, Volume and Issue: 286, P. 127449 - 127449

Published: Dec. 20, 2024

Language: Английский

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