4.4 Article

Efficient hydrogen production over Bi2Te3-modified TiO2 catalysts: A first principles study

相关参考文献

注意:仅列出部分参考文献,下载原文获取全部文献信息。
Article Materials Science, Multidisciplinary

Construction of 2D/2D Ti3C2/Bi12O17Cl2: Effective charge separation and improved photocatalytic activity

Mengdi Yang et al.

Summary: Ti3C2/Bi12O17Cl2 composites were prepared by a simple ultrasonic composite method and their successful preparation was confirmed by XRD, TEM, XPS, BET, and DRS analysis. The Ti3C2/Bi12O17Cl2 composite with a Ti3C2 mass fraction of 2% exhibited a degradation rate constant of 0.17406 min-1 for Rhodamine B (RhB), which was 5.5 times higher than that of Bi12O17Cl2 (0.03186 min-1). After 5 cycles of experiments, the degradation rate remained at 93.8%. The introduction of Ti3C2 promoted the migration of photogenerated electrons and holes over Bi12O17Cl2, leading to significantly improved photocatalytic activity of Ti3C2/Bi12O17Cl2 composites. A highly active photocatalyst was proposed.

MATERIALS RESEARCH BULLETIN (2023)

Article Chemistry, Physical

Graphene quantum dots/carbon nitride heterojunction with enhanced visible-light driven photocatalysis of nitric oxide: An experimental and DFT study

Yunpei Cui et al.

Summary: In this study, a visible light-driven photocatalyst GQDs/CN was proposed for the degradation of NO pollutants. The experimental results showed that the GQDs/CN heterojunction exhibited high catalytic activity and stability, effectively degrading NO by increasing the specific surface area and promoting light absorption.

CARBON (2022)

Article Engineering, Chemical

Preparation of organic-inorganic PDI/BiO2-x photocatalyst with boosted photocatalytic performance

Xiaoli Zhang et al.

Summary: In this study, an organic-inorganic catalyst PDI/BiO2-x was synthesized, which efficiently degraded various pollutants and improved the separation efficiency and surface area. The results showed that the degradation rates of RhB and MB were increased by 21 and 18 times, respectively, when using the PD/BiO2-x catalyst. Additionally, it effectively degraded methyl orange and tetracycline hydrochloride. Furthermore, the catalyst demonstrated good cycling stability through five recycle experiments.

JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS (2022)

Article Chemistry, Physical

Enhancing the Photoelectrochemical Performance of TiO2 through Decorating a Topological Insulator Bi2Te3 Film and Non-Noble Plasmonic Cu Nanoparticles

Zhilong Hu et al.

Summary: In this study, a TiO2/Bi2Te3/Cu photoanode was designed to enhance the PEC performance and charge separation of TiO2 by decorating topological insulators and plasmonic materials. The improved light absorption and suppressed recombination of photogenerated electron-hole pairs resulted in an increased photocurrent density and prolonged carrier lifetime.

JOURNAL OF PHYSICAL CHEMISTRY C (2022)

Article Energy & Fuels

Simple preparation of amorphous nickel boride/Mn0.5Cd0.5S composite and its high-efficient photocatalytic performance for hydrogen production

Ying Liu et al.

Summary: In this work, amorphous NiB-modified Mn0.5Cd0.5S (NBMCS) was prepared using a simple stirred method. The NBMCS material exhibited enhanced light absorption ability, better separation of photo-generated carriers, lower overpotential, and stronger reduction capacity. When used for water splitting to produce H2, NBMCS showed a significantly higher hydrogen precipitation rate compared to bare Mn0.5Cd0.5S and 1% Pt/Mn0.5Cd0.5S, while maintaining good stability. Therefore, this inexpensive and effective cocatalyst has the potential to be widely utilized in the field of solar energy conversion.

SOLAR ENERGY (2022)

Article Materials Science, Multidisciplinary

A one-step solvothermal synthesis of the topological insulator Bi2Te3 nanorod-modified TiO2 photocatalyst for enhanced H2-evolution activity

Lin Dong et al.

Summary: In this study, topological insulator Bi2Te3 nanorods were found to serve as effective cocatalysts, enhancing the photocatalytic H-2 evolution activity of TiO2. Bi2Te3, with its high conductivity and suitable Te-H bond, acted as both an electron transport medium and highly efficient H-2 generation site, accelerating the H-2 generation reaction. This discovery provides new insights for improving the photocatalytic hydrogen production efficiency.

JOURNAL OF MATERIALS CHEMISTRY C (2022)

Article Chemistry, Physical

Thickness-dependent layered BiOIO3 modified with carbon quantum dots for photodegradation of bisphenol A: Mechanism, pathways and DFT calculation

Jiahao Lai et al.

Summary: In this study, a thickness-dependent BiOIO3 loaded by carbon quantum dots (CQDs/BiOIO3) was synthesized, showing high efficiency in the photodegradation of bisphenol A. The efficient separation of photogenic charges and the enhancement of charge transfer and light absorption were identified as the key factors contributing to the outstanding photocatalytic activity. The dominant active species and degradation pathways were studied, providing insights for the design of high-performance catalysts based on layered bismuth-based materials.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

EDTA-assisted synthesis of amorphous BiSx nanodots for improving photocatalytic hydrogen-evolution rate of TiO2

Lin Dong et al.

Summary: Compared with crystalline metal sulfides, amorphous metal sulfides can enhance photocatalytic hydrogen-evolution activity by providing more unsaturated S atoms. In this study, amorphous BiSx nanodots were successfully loaded on TiO2 surface as an efficient H-2-evolution cocatalyst, significantly boosting the photocatalytic H-2-production performance. Additionally, the amorphous BiSx nanodots can also serve as a general cocatalyst to promote the H-2-generation activity of other typical photo-catalysts.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

Article Chemistry, Physical

Surface Defines the Properties: Colloidal Bi2Se3 Nanosheets with High Electrical Conductivity

Christoph Bauer et al.

Summary: The colloidal synthesis of Bi2Se3 nanosheets in ethylene glycol successfully increased their lateral dimensions while keeping thickness within a few nanometers. Sulfuric acid was found to promote lateral growth up to 10 μm, while thickness remained in the range of 10-12 nm. Size-selective precipitation further optimized lateral size distribution for individual contacting of nanosheets, revealing metal-like temperature dependence of resistivity and specific conductivity values.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

Article Chemistry, Inorganic & Nuclear

Effects of NbCl5-doping on the thermoelectric properties of polycrystalline Bi2S3

Zi-Yuan Wang et al.

Summary: By using NbCl5 doping technology, the thermoelectric properties of Bi2S3 were successfully enhanced, resulting in increased electrical conductivity by raising the carrier concentration. A maximum ZT value of around 0.28 was achieved, which is over four times higher than that of the pristine sample, demonstrating the effectiveness of NbCl5 as an n-type dopant for the Bi2S3 system and the potential for high thermoelectric performance with environmentally friendly and low-cost elements.

JOURNAL OF SOLID STATE CHEMISTRY (2021)

Article Chemistry, Physical

Synergism of tellurium-rich structure and amorphization of NiTe1+x nanodots for efficient photocatalytic H2-evolution of TiO2

Duoduo Gao et al.

Summary: The study introduces novel and robust H-2-generation cocatalyst, tellurium-rich amorphous NiTe1+x nanodots, loaded onto TiO2 to significantly enhance its photocatalytic H-2-evolution performance. The small nanodots achieved high H-2 evolution rate by efficiently enhancing electron transfer and accelerating the H-2 generation process.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Computational discovery of PtS2/GaSe van der Waals heterostructure for solar energy applications

Rui Xiong et al.

Summary: In this study, the PtS2/GaSe vdW heterostructure is proposed as a distinguished candidate for photocatalytic water splitting and solar cells due to its high thermal stability, excellent light absorption coefficients, and appropriate band alignment. The power conversion efficiency of ZnO/(PtS2/GaSe heterostructure)/CIGS solar cells can achieve up to 17.4% and be further optimized to around 18.5% by increasing the thickness of CIGS. This research demonstrates the potential application of vdW heterostructures as promising photocatalysts for water splitting and buffer layers for solar cells.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2021)

Article Chemistry, Physical

Expediting Hydrogen Evolution through Topological Surface States on Bi2Te3

Qing Qu et al.

ACS CATALYSIS (2020)

Review Chemistry, Multidisciplinary

Theoretical calculation of a TiO2-based photocatalyst in the field of water splitting: A review

Bianhong Li et al.

NANOTECHNOLOGY REVIEWS (2020)

Review Chemistry, Physical

Progress in nickel chalcogenide electrocatalyzed hydrogen evolution reaction

S. Anantharaj et al.

JOURNAL OF MATERIALS CHEMISTRY A (2020)

Article Multidisciplinary Sciences

Boundary activated hydrogen evolution reaction on monolayer MoS2

Jianqi Zhu et al.

NATURE COMMUNICATIONS (2019)

Article Chemistry, Multidisciplinary

Bi2Te3 Nanoplates' Selective Growth Morphology on Different Interfaces for Enhancing Thermoelectric Properties

Zhenhua Wu et al.

CRYSTAL GROWTH & DESIGN (2019)

Review Chemistry, Physical

Photocatalytic activity of TiO2 nanoparticles: a theoretical aspect

Yeonsig Nam et al.

JOURNAL OF MATERIALS CHEMISTRY A (2019)

Article Chemistry, Physical

Photochemical Water Splitting by Bismuth Chalcogenide Topological Insulators

Catherine R. Rajamathi et al.

CHEMPHYSCHEM (2017)

Article Chemistry, Physical

Mechanism of Hydrogen Evolution Reaction on 1T-MoS2 from First Principles

Qing Tang et al.

ACS CATALYSIS (2016)

Article Engineering, Electrical & Electronic

A density functional study of structural, electronic and optical properties of titanium dioxide: Characterization of rutile, anatase and brookite polymorphs

Mazmira Mohamad et al.

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING (2015)

Review Chemistry, Multidisciplinary

Theoretical Studies on Anatase and Less Common TiO2 Phases: Bulk, Surfaces, and Nanomaterials

Filippo De Angelis et al.

CHEMICAL REVIEWS (2014)

Article Computer Science, Interdisciplinary Applications

The analysis of a plane wave pseudopotential density functional theory code on a GPU machine

Weile Jia et al.

COMPUTER PHYSICS COMMUNICATIONS (2013)

Article Computer Science, Interdisciplinary Applications

Fast plane wave density functional theory molecular dynamics calculations on multi-GPU machines

Weile Jia et al.

JOURNAL OF COMPUTATIONAL PHYSICS (2013)

Article Chemistry, Physical

(101)-exposed anatase TiO2 nanosheets

Chih-Wei Peng et al.

CHEMISTRY OF MATERIALS (2008)

Article Chemistry, Multidisciplinary

Small au and pt clusters at the anatase TiO2(101) surface:: Behavior at terraces, steps, and surface oxygen vacancies

Xue-Qing Gong et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2008)

Article Chemistry, Physical

First principles study of nitrogen doping at the anatase TiO2(101) surface

Emanuele Finazzi et al.

JOURNAL OF PHYSICAL CHEMISTRY C (2007)

Article Electrochemistry

Trends in the exchange current for hydrogen evolution

JK Norskov et al.

JOURNAL OF THE ELECTROCHEMICAL SOCIETY (2005)

Article Chemistry, Physical

Hybrid functionals based on a screened Coulomb potential

J Heyd et al.

JOURNAL OF CHEMICAL PHYSICS (2003)