Building a robust S-scheme BiOCl/CuBi2O4 system for photocatalytic oxidation of sulfamethoxazole under solar light irradiation

Solar Energy, Journal Year: 2024, Volume and Issue: 275, P. 112640 - 112640

Published: May 25, 2024

Language: Английский

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Introducing oxygen cacancies to tune Cu2O by Sn ion-doped for high-effective photocatalytic degradation of norfloxacin in wastewater

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: unknown, P. 129810 - 129810

Published: Sept. 1, 2024

Language: Английский

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Study on photocatalytic degradation of formaldehyde and rhodamine b by BiOI@Carbon sphere core–shell nanostructures composite photocatalyst

Inorganic Chemistry Communications, Journal Year: 2024, Volume and Issue: 164, P. 112410 - 112410

Published: April 8, 2024

Language: Английский

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Precipitation and coprecipitation synthesis methods

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 11 - 25

Published: Jan. 1, 2025

Language: Английский

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Hydrothermally devised visible light-activated NiFe2O4/Bi4O5I2 composite for aquaculture wastewater decontamination and plastic waste photoreforming applications

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114188 - 114188

Published: Feb. 1, 2025

Language: Английский

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Innovative ternary bismuth oxychloride/bismuth oxide/carbon nanotubes induced excellent solar light-driven activity toward photomineralisation of diclofenac: Impact of metastable β-Bi2O3 inserted and electron-hole separation

Results in Chemistry, Journal Year: 2024, Volume and Issue: 7, P. 101497 - 101497

Published: Jan. 1, 2024

Solar energy-utilizing photocatalysts for water purification remain essential environmental sustainability. This report presents new concepts in bismuth oxychloride/oxide/carbon nanotubes. (BiOCl/Bi2O3/CNT) composites, synthesized through a chemical deposition method involving BiOCl carbon nanotube bath, followed by surface reduction/oxidation steps. The impact of ratio and calcination temperature were explored. Characterization involved ultraviolet–visible diffuse reflectance spectroscopy (UV–vis DRS), X-ray photoelectron (XPS), fourier transform infrared (FTIR), diffraction (XRD), scanning electron microscopy (SEM), energy dispersive (EDX), elemental mapping, N2 adsorption/desorption analysis, electrochemical impedance (EIS). XRD analysis revealed in-situ formation α β-Bi2O3 phases, rendering the composite more responsive to visible light at 200 °C. Carbon nanotubes reduced band gap ternary yielding lower energies range compared Bi2O3. XPS identified metallic Bi0 particles, enhancing mobility charge separation. synergy BiOCl/Bi2O3/CNT-200 material significantly improved diclofenac degradation under solar simulator irradiation. Total organic (TOC) demonstrated 81 % mineralization with material. Active species trapping crucial roles HO• radicals h+ holes pollutant degradation. presence normally metastable phase °C enhanced simulation efficiency, while acted as reservoirs, aided particles. present study sets out an efficient synthesis approach photomineralization complex pharmaceutical compounds.

Language: Английский

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Monolayer BiOI doped with nonmetals (B, C, N, Si, P, S) to enhance photocatalytic hydrogen precipitation performance

Applied Surface Science, Journal Year: 2024, Volume and Issue: 669, P. 160560 - 160560

Published: June 21, 2024

Language: Английский

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Novel 3D plate-like g-C3N4/BiOCl heterojunction as a highly efficient photocatalyst for the degradation of carbofuran in wastewater under visible light irradiation

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 155930 - 155930

Published: Sept. 1, 2024

Language: Английский

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Effective separation of ciprofloxacin from aqueous solutions using BiOCl/Bi2S3/biochar hybrid structure fabricated via ultrafast solid-state reaction

Applied Water Science, Journal Year: 2025, Volume and Issue: 15(4)

Published: March 24, 2025

Abstract Developing a product that serves dual purpose as an adsorbent/photocatalyst for ecological applications is compelling study area. This article discusses facile ultrafast synthesis of BiOCl/Bi 2 S 3 /biochar (BiOCl/Bi /BC) by solid-state reaction with coupled roles photocatalyst during sunlight exposure and adsorbent when there no light. /BC was characterized XRD, SEM, EDX, HR-TEM, XPS, FTIR, Raman, DR/UV–Vis spectroscopy techniques. The adsorption efficiency its parameters were explored using ciprofloxacin (CPF) contaminant model drug in the absence light irradiation. role considered under direct 30 achieved removal 81.25% dark reached 90% within 1 h. exhibited triplet initial rate, doubled rate constant photocatalysis (11.34 mg g −1 min , 0.642 ) compared to (3.88 0.256 ), respectively, indicating adsorptive, catalytic, cocatalytic BC. Mechanism studies indicated separated CPF via electrostatic interaction, π – conjunction, hydrogen bonding while occurred through S-scheme mechanism where • O − h + play predominant photocatalytic degradation. Besides, hybrid stable revealed acceptable recyclability after four consecutive cycles from their aqueous solutions. work provided ultrafast, simple, economical, efficient strategy application structure has function elimination water.

Language: Английский

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Effect of tin doping and tin-bromine co-doping on electronic and optical properties of BiOCl crystal: density functional theory

Materials Research Express, Journal Year: 2024, Volume and Issue: 11(6), P. 065903 - 065903

Published: June 1, 2024

Abstract Bismuth oxychloride (BiOCl) is a layered compound known for its exceptional physical, chemical, and optical characteristics, along with notable photocatalytic performance under visible light irradiation. This investigation employed density functional theory (DFT) to analyze the electronic band structure, projected of states (PDOS), joint (JDOS), dielectric functions both pristine BiOCl various doped crystalline structures utilizing augmented wave basis set. The crystallographic symmetry co-doped configurations exhibited congruency crystals. Electronic were evaluated pristine, doped, forms. In case Sn x Bi 1−x OBr Cl crystal (x = 0.0625, 0.125, 0.25), energy gaps 1.40 eV, 1.42 1.5 eV determined, respectively, signifying reduction in gap compared single undoped crystal. Analysis PDOS revealed that valence (VB) was characterized by (p), Br O (s, p) states, while conduction (CB) primarily consisted (p) states. JDOS calculations indicated shift peak towards lower values, indicating dopants promoted electron transitions from Cl, Sn, O, p state. Moreover, function pure demonstrated tin-bromine co-doping induced modifications static constant permittivity unmodified Ultimately, incorporation tin bromine through exerted substantial influence on properties materials. Based our computational assessments, configuration 0.25 showcased superior absorption efficiency other variations BiOCl.

Language: Английский

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