Oxygen vacancies induced by Ce3+/Ce4+ doping mediate the formation of Bi0/Bi2O3/Bi2O2.75 nanosheets for visible light-driven photocatalytic degradation of lignin

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 471, P. 144574 - 144574

Published: July 3, 2023

Language: Английский

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Metal-organic framework-derived Fe/C/Bi2O3 as peroxidase-like nanozymes for the detection of organophosphorus pesticides

Sensors and Actuators B Chemical, Journal Year: 2023, Volume and Issue: 393, P. 134121 - 134121

Published: June 12, 2023

Language: Английский

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Investigation of the Photocatalytic Performance, Mechanism, and Degradation Pathways of Rhodamine B with Bi2O3 Microrods under Visible-Light Irradiation

Materials, Journal Year: 2024, Volume and Issue: 17(4), P. 957 - 957

Published: Feb. 19, 2024

In the present work, photodegradation of Rhodamine B with different pH values by using Bi2O3 microrods under visible-light irradiation was studied in terms dye degradation efficiency, active species, mechanism, and pathway. X-ray diffractometry, polarized optical microscopy, scanning electron fluorescence spectrophotometry, diffuse reflectance spectra, Brunauer–Emmett–Teller, photoelectron spectroscopy, Fourier-transform infrared UV–visible total organic carbon, liquid chromatography–mass spectroscopy analysis techniques were used to analyze crystal structure, morphology, surface structures, band gap values, catalytic performance, mechanistic The photoluminescence spectra spectrum (the are 2.79 eV) reveals that absorption extended visible region, which resulted a high separation low recombination rate electron–hole pairs. results clearly indicated had removal efficiencies about 97.2%, 90.6%, 50.2% within 120 min at 3.0, 5.0, 7.0, respectively. addition, mineralization RhB evaluated measuring effect on chemical oxygen demand carbon value 3.0. At same time, quenching experiments carried out understand core reaction species involved solution values. diffractometer pre- post-Bi2O3 showed BiOCl formed Bi2O3, BiOCl/Bi2O3 heterojunction after acid photocatalytic degradation. Furthermore, substances possible mechanism over analyzed based radical capture, analysis, spectroscopy. intermediates photocatalyst light also identified assistance

Language: Английский

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Heterostructured Photocatalysts for Water Splitting and the Interfacial Charge Transfer

ACS Materials Letters, Journal Year: 2024, Volume and Issue: unknown, P. 3572 - 3601

Published: July 15, 2024

Language: Английский

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From sunlight to sustainability: The properties, evolution, and prospects of photocatalytic building materials

Catalysis Reviews, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 72

Published: Jan. 7, 2025

This study explores the essential characteristics and mechanisms of photocatalytic building materials (PBMs), highlighting their crucial role in promoting sustainable construction practices. It examines how PBMs drive progress green technologies, significantly contributing to environmental preservation within urban infrastructure. The analysis encompasses development, properties, practical applications, potential advantages PBMs, demonstrating impact on advancing sustainability functionality modern architecture. implications synthesis approaches used develop (PC) creating self-cleaning surfaces (such as windows facades), integrating them with cementitious materials, developing antimicrobial improving air purification through photocatalysis are given special attention. Additionally, it underscores semiconductor materials' broad appeal multidisciplinary importance, emphasizing applications across various industries. review critically analyzes existing challenges field proposes future research avenues overcome them. Collectively, this seeks innovation enhance performance built environment by tackling current obstacles outlining directions.

Language: Английский

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Synthesis of Ionic Liquid-Assisted Nanoparticles: High Activity, Fast Removal for Photodegradation of Methylene Blue in Water

Water Air & Soil Pollution, Journal Year: 2025, Volume and Issue: 236(2)

Published: Jan. 9, 2025

Abstract The discharge of dye residues from the textile industry is a major contributor to water pollution, highlighting urgent need for effective wastewater treatment solutions. This study investigates synthesis ZnO and Bi₂O₃ nanoparticles using ionic liquid-assisted methods enhanced photocatalytic degradation methylene blue. Three liquids were employed: 1-butyl-3-methylimidazolium tetrafluoroborate ([BMIM]-BF₄), hexafluorophosphate ([BMIM]-PF₆), chloride ([BMIM]-Cl). synthesized characterized X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), photoluminescence (PL) spectroscopy. Results showed that liquid incorporation led improved crystallinity, uniform morphology, reduced particle sizes. ZnO-[BMIM]-BF₄ (1%) Bi₂O₃-[BMIM]-BF₄ exhibited lowest band gap energies 2.50 eV 2.20 respectively, indicating light absorption. These catalysts also demonstrated superior activity, achieving complete blue within 40 35 min under UV-B irradiation, 60 sunlight. performance was attributed absorption, electron–hole recombination, efficient charge transfer facilitated by liquids. excellent stability over multiple cycles. highlights potential in developing highly stable photocatalysts environmental remediation applications. Graphical

Language: Английский

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High-Dielectric 2D Bismuth Oxides with Large Bandgaps: The Role of 6s² Lone Pair Hybridization

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: 16(6), P. 1440 - 1446

Published: Jan. 31, 2025

Large-bandgap and high-dielectric 2D dielectrics are crucial for transistor performance because they maximize gate-to-channel capacitive coupling, yet such high-quality materials remain scarce. This study employed first-principles calculations to predict 18 distinct bismuth oxides (BiOs). It is demonstrated that the 6s2 lone pairs in BiOs form benign positive feedback between bandgap dielectric constant. The hybridization of 6pz orbitals key setting bandgap, revealing a significant negative linear relationship bond length energy gap. In particular, due stereochemical activity enhances ionic contribution, these capable sustaining high constant value surpassing 24, even within bandgaps wider than 4 eV. discovery theoretical understanding exhibiting large constants, providing deeper insights into impact on materials.

Language: Английский

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Stripping voltammetric determination of cadmium and lead ions based on a bismuth oxide surface-decorated nanoporous bismuth electrode

Electrochemistry Communications, Journal Year: 2022, Volume and Issue: 136, P. 107233 - 107233

Published: Feb. 2, 2022

Ultrasensitive detection of heavy metal ions through electrochemical methods is a longstanding research topic. One the most compelling subjects preparation modified electrodes with high specific surface area as well fast response characteristics. In this study, novel bismuth oxide surface-decorated nanoporous (Bi2O3@NPBi) was prepared typical dealloying method, where bicontinuous ligament–channel structure greatly improved electrically active and electron conduction. The Bi2O3@NPBi-modified electrode employed to detect using square wave anodic stripping voltammetry (SWASV), corresponding limits (LOD) were 0.02 0.03 µg/L for simultaneous Pb2+ Cd2+. Due cycling stability capacity oxides, relative standard deviation (RSD) currents Bi2O3@NPBi less than 4.16%, which very considerably lower RSD NPBi. Furthermore, used determine concentration Cd2+ in tap water samples, excellent recovery figures obtained there little interference from other co-existing ions. conclusion, showed good reusability feasibility quality assurance agricultural, food environmental applications.

Language: Английский

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Advances in the optical and electronic properties and applications of bismuth-based semiconductor materials

Journal of Materials Chemistry C, Journal Year: 2023, Volume and Issue: 12(5), P. 1609 - 1624

Published: Dec. 22, 2023

In recent years, bismuth-based semiconductors have become a research hotspot in the new semiconductor field due to their unique optical and electronic properties.

Language: Английский

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In situ oxidation of ethylene glycol coupled with Bi2O3 epitaxial growth to prepare Bi2O3/BiOCOOH heterojunctions with oxygen vacancies for efficient photocatalytic lignin degradation

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2023, Volume and Issue: 664, P. 131134 - 131134

Published: Feb. 14, 2023

Language: Английский

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