Improving toxic dye removal and remediation using novel nanocomposite fibrous adsorbent

Colloids and Surfaces A Physicochemical and Engineering Aspects, Год журнала: 2023, Номер 673, С. 131859 - 131859

Опубликована: Июнь 10, 2023

Язык: Английский

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Photocatalytic degradation of organic pollutants over MoS2/Ag-ZnFe2O4 Z-scheme heterojunction: Revealing the synergistic effects of exposed crystal facets, defect engineering, and Z-scheme mechanism

Chemical Engineering Journal, Год журнала: 2022, Номер 453, С. 139775 - 139775

Опубликована: Окт. 14, 2022

Язык: Английский

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Carbon defective g-C3N4 thin-wall tubes for drastic improvement of photocatalytic H2 production

Carbon, Год журнала: 2022, Номер 202, С. 348 - 357

Опубликована: Окт. 26, 2022

Язык: Английский

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An overview of improving photocatalytic activity of MnO2 via the Z-scheme approach for environmental and energy applications

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2023, Номер 158, С. 104945 - 104945

Опубликована: Июнь 11, 2023

Язык: Английский

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Detecting and Quantifying Wavelength‐Dependent Electrons Transfer in Heterostructure Catalyst via In Situ Irradiation XPS

Advanced Science, Год журнала: 2022, Номер 10(4)

Опубликована: Ноя. 14, 2022

The identity of charge transfer process at the heterogeneous interface plays an important role in improving stability, activity, and selectivity heterojunction catalysts. And, situ irradiation X-ray photoelectron spectroscopy (XPS) coupled with UV light optical fiber measurement setup is developed to monitor observe between heterojunction. However, in-depth relationship binding energy wavelength missing based on fact that incident formed by coupling different wavelengths. Furthermore, a quantitative understanding numbers remains elusive. Herein, g-C3 N4 /SnO2 model catalyst, wavelength-dependent Boltzmann function describe changes through utilizing continuously adjustable monochromatic XPS technique established. Using this method, study further reveals electrons number can be readily calculated forming asymptotic model. This methodology provides blueprint for deep charge-transfer rules facilitates future development highly active advanced

Язык: Английский

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Near infrared emissions from both high efficient quantum cutting (173%) and nearly-pure-color upconversion in NaY(WO4)2:Er3+/Yb3+ with thermal management capability for silicon-based solar cells

Light Science & Applications, Год журнала: 2024, Номер 13(1)

Опубликована: Янв. 16, 2024

Abstract Raising photoelectric conversion efficiency and enhancing heat management are two critical concerns for silicon-based solar cells. In this work, efficient Yb 3+ infrared emissions from both quantum cutting upconversion were demonstrated by adjusting Er concentrations, thermo-manage-applicable temperature sensing based on the luminescence intensity ratio of super-low thermal quenching levels was discovered in an /Yb co-doped tungstate system. The mechanism clearly decrypted as a two-step energy transfer process to . efficiencies, radiative nonradiative transition rates all interested 4 f NaY(WO ) 2 confirmed framework Föster-Dexter theory, Judd-Ofelt gap law, these obtained efficiencies furthermore determined be high 173% : 5 mol% /50 sample. Strong nearly pure emission under 1550 nm excitation achieved doping concentrations. induced enhancement attributed I 11/2 (Er + F 7/2 (Yb → 15/2 5/2 large relaxation rate 9/2 Analysis indicated that :Er serves well cells thermos-managing material. Moreover, it fluorescence H / S 3/2 caused All results suggest is excellent material improve management.

Язык: Английский

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The latest progress in the design and application of semiconductor photocatalysis systems for degradation of environmental pollutants in wastewater: Mechanism insight and theoretical calculations

Materials Science in Semiconductor Processing, Год журнала: 2024, Номер 173, С. 108153 - 108153

Опубликована: Янв. 22, 2024

Язык: Английский

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Distinguishing between type II and S-scheme heterojunction materials: A comprehensive review

Applied Surface Science Advances, Год журнала: 2023, Номер 19, С. 100536 - 100536

Опубликована: Дек. 28, 2023

In the evolving field of photocatalysis, heterojunction photocatalysts, especially Type II and S-scheme, latter being also known as direct-Z scheme heterojunctions, are gaining increasing recognition for their pivotal role in enhancing photocatalytic efficiency. These characterized by similar band alignments but distinct charge transfer mechanisms, play a crucial facilitating enhanced separation transfer. This comprehensive review delves into experimental methodologies essential characterizing these with focus on understanding unique mechanisms. Key methods such Electron Spin Resonance (ESR), radical trapping experiments, Photoluminescence (PL) probing, Nitro Blue Tetrazolium (NBT) transformation, Surface Photovoltage Spectroscopy (SPS), photodeposition metals, in-situ X-ray Photoelectron (in-situ XPS) analysis discussed detail. Each technique is presented necessary guidelines accompanying information to ensure appropriate effective use pinpointing specifics processes. The concludes that right selection techniques mechanism staggered type heterojunctions achieving further advancements photocatalysis.

Язык: Английский

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A Novel Dual-Channel Carbon Nitride Homojunction with Nanofibrous Carbon for Significantly Boosting Photocatalytic Hydrogen Peroxide Production

Advanced Fiber Materials, Год журнала: 2024, Номер 6(2), С. 387 - 400

Опубликована: Янв. 9, 2024

Язык: Английский

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Using waste silver metal in synthesis of Z-scheme Ag@WO3-CeO2 heterojunction to increase photodegradation and electrochemical performances

Journal of Industrial and Engineering Chemistry, Год журнала: 2023, Номер 128, С. 459 - 471

Опубликована: Авг. 15, 2023

Язык: Английский

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