How to design plasmonic Ag/SrTiO3 nanocomposites as efficient photocatalyst: Theoretical insight and experimental validation DOI Creative Commons
Quang Thang Trịnh,

Tuyen Le Van,

Thi To Nga Phan

и другие.

Journal of Alloys and Compounds, Год журнала: 2024, Номер 1002, С. 175322 - 175322

Опубликована: Июнь 24, 2024

An integrated theoretical-experimental investigation is performed to understand the photocatalytic and optical properties of Ag/SrTiO3 nanocomposite (Ag/STO). Theoretical reveals that catalytic activity Ag/STO increased when Ag particle size smaller, while opposite correlation observed for its visible-light absorbance efficiency. These insights suggest efficient photocatalyst needs be balanced between active interfacial site density intensity by carefully controlling dosage. Furthermore, reactive oxygen species are responsible oxidative degradation organic pollutant on could identified from Density Functional Theory (DFT) calculations. Comprehensive experiments carried out using Rhodamine-B (RhB) photodegradation test in wastewater treatment application excellently validate those theoretical predictions. Over series synthesized composites with different contents, optimum 1% wt. loading has highest 92.8% efficiency RhB after 1 hour light irradiation. Trapping also confirm crucial role O2 OH species, which was predicted DFT calculations, as primary oxidizing agents RhB. This work provides a useful framework develop novel plasmonic nanocomposites other applications.

Язык: Английский

Environment-Friendly Carbon Quantum Dots/ZnFe2O4 Photocatalysts: Characterization, Biocompatibility, and Mechanisms for NO Removal DOI
Yu Huang,

Yanling Liang,

Yongfang Rao

и другие.

Environmental Science & Technology, Год журнала: 2017, Номер 51(5), С. 2924 - 2933

Опубликована: Фев. 1, 2017

A highly efficient and environmentally-friendly oxidation process is always desirable for air purification. This study reported a novel carbon quantum dots (CQDs)/ZnFe2O4 composite photocatalyst the first time through facile hydrothermal process. The CQDs/ZnFe2O4 (15 vol %) demonstrates stronger transient photocurrent response, approximately 8 times higher than that of ZnFe2O4, indicating superior transfer efficiency photogenerated electrons separation electron–hole pairs. Compared with pristine ZnFe2O4 nanoparticles, displayed enhanced photocatalytic activities on gaseous NOx removal high selectivity nitrate formation under visible light (λ > 420 nm) irradiation. Electron spin resonance analysis series radical-trapping experiments showed reactive species contributing to NO elimination were ·O2– ·OH radicals. possible mechanisms proposed regarding how CQDs improve performance ZnFe2O4. are believed act as an electron reservoir transporter well powerful energy-transfer component during photocatalysis processes over samples. Furthermore, toxicity assessment authenticated good biocompatibility low cytotoxity CQDs/ZnFe2O4. results this indicate promising

Язык: Английский

Процитировано

288

Visible-Light-Active Doped Metal Oxide Nanoparticles: Review of their Synthesis, Properties, and Applications DOI
Riddhiman Medhi, Dolores Ortiz, T. Randall Lee

и другие.

ACS Applied Nano Materials, Год журнала: 2020, Номер 3(7), С. 6156 - 6185

Опубликована: Июнь 15, 2020

Metal oxide semiconductors with a bandgap between 2 and 4 eV are an important class of compounds in the electronics industry for photocatalysis. With demand these materials expanding rapidly, especially field photocatalysis, fabrication nanoscale metal particles, which increases surface-to-volume ratio thereby reduces costs, is emphasis current research. For purpose another quality ability to absorb light efficiently. However, due wide semiconductors, absorptions limited UV region. Conveniently, wider range wavelengths physical properties can be enabled by doping nanoparticles. Furthermore, synthesis doped oxides nanoparticle form offers utility expansive array systems, substrates, dispersion media. reliable nanosized colloidal particles remains ongoing challenge researchers. This manuscript gives concise overview research conducted regarding visible-light-active nanoparticles (NPs) analyzes how impacts optical properties, making them active visible near-infrared regions. The effects on applications also summarized. Given that most commonly TiO2 ZnO, this review highlights both anion- cation-doped ZnO In addition, perovskite (e.g., BaTiO3 SrTiO3) as well some lesser studied systems covered. work intended provide not only broad existing but foundation development semiconducting architectures next-generation applications.

Язык: Английский

Процитировано

271

Chemical vs thermal exfoliation of g-C3N4 for NOx removal under visible light irradiation DOI
Ilias Papailias, N. Todorova, T. Giannakopoulou

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2018, Номер 239, С. 16 - 26

Опубликована: Июль 31, 2018

Язык: Английский

Процитировано

232

Plasmonic Ag-TiO2−x nanocomposites for the photocatalytic removal of NO under visible light with high selectivity: The role of oxygen vacancies DOI
Yanyan Duan, Mei Zhang, Lan Wang

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2016, Номер 204, С. 67 - 77

Опубликована: Ноя. 14, 2016

Язык: Английский

Процитировано

218

Synthesis of a Bi2O2CO3/ZnFe2O4 heterojunction with enhanced photocatalytic activity for visible light irradiation-induced NO removal DOI Creative Commons
Yu Huang, Dandan Zhu, Qian Zhang

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2018, Номер 234, С. 70 - 78

Опубликована: Апрель 19, 2018

Язык: Английский

Процитировано

181

Developing sustainable, high-performance perovskites in photocatalysis: design strategies and applications DOI
Haoxin Mai, Dehong Chen, Yasuhiro Tachibana

и другие.

Chemical Society Reviews, Год журнала: 2021, Номер 50(24), С. 13692 - 13729

Опубликована: Янв. 1, 2021

Recent progress of earth-abundant, nontoxic perovskite oxides, halides and oxyhalides for photocatalysis is discussed related to composition structure.

Язык: Английский

Процитировано

166

Plasmonic-based nanomaterials for environmental remediation DOI
Dawei Wang, Suresh C. Pillai, Shih‐Hsin Ho

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2018, Номер 237, С. 721 - 741

Опубликована: Июнь 20, 2018

Язык: Английский

Процитировано

165

Photocatalytic NO removal over defective Bi/BiOBr nanoflowers: The inhibition of toxic NO2 intermediate via high humidity DOI
Xin Yue,

Qiuhui Zhu,

Ting Gao

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2022, Номер 324, С. 122238 - 122238

Опубликована: Дек. 5, 2022

Язык: Английский

Процитировано

95

SrTiO3 nanocubes decorated with Ag/AgCl nanoparticles as photocatalysts with enhanced visible-light photocatalytic activity towards the degradation of dyes, phenol and bisphenol A DOI

Shi-Feng Yang,

Cheng‐Gang Niu, Da-Wei Huang

и другие.

Environmental Science Nano, Год журнала: 2017, Номер 4(3), С. 585 - 595

Опубликована: Янв. 1, 2017

Ag/AgCl/SrTiO3 composites were successfully fabricated and exhibited enhanced photocatalytic performance for the degradation of organic pollutants.

Язык: Английский

Процитировано

164

Perovskite LaFeO3-SrTiO3 composite for synergistically enhanced NO removal under visible light excitation DOI Creative Commons
Qian Zhang, Yu Huang, Shiqi Peng

и другие.

Applied Catalysis B Environment and Energy, Год журнала: 2016, Номер 204, С. 346 - 357

Опубликована: Ноя. 24, 2016

Язык: Английский

Процитировано

135