4.7 Article

Oxygen Vacancy and Metallic Silver Site Coinjection Associates Photocatalytic CO2 Reduction upon Mesoporous NH2-TiO2 Nanoparticles Assembly

Related references

Note: Only part of the references are listed.
Article Chemistry, Multidisciplinary

Facilely anchoring Cu2O nanoparticles on mesoporous TiO2 nanorods for enhanced photocatalytic CO2 reduction through efficient charge transfer

Ge Yang et al.

Summary: In this study, TiO2/Cu2O composite nanorods were successfully fabricated and applied for photocatalytic CO2 reduction, showing enhanced catalytic performance. The TiO2/Cu2O-15% sample exhibited the highest CH4 yield within 4h irradiation, attributed to the formed p-n junction between Cu2O nanoparticles and TiO2 nanorods.

CHINESE CHEMICAL LETTERS (2022)

Article Chemistry, Physical

Rapid Hydroxyl Radical Generation on (001)-Facet-Exposed Ultrathin Anatase TiO2 Nanosheets for Enhanced Photocatalytic Lignocellulose-to-H2 Conversion

Quan Cheng et al.

Summary: In this study, ultrathin anatase TiO2 nanosheets with exposed (001) facets were used as highly active photocatalysts for photocatalytic lignocellulose-to-H-2 conversion. The ultrathin structure provided abundant active sites and facilitated photogenerated charge transfer. The generation of ·OH radicals on the (001) facets was proven to be feasible. The findings demonstrated the potential of rapid ·OH generation to enhance lignocellulose oxidation and hydrogen production.

ACS CATALYSIS (2022)

Article Chemistry, Physical

ZnIn2S4 nanosheet growth on amine-functionalized SiO2 for the photocatalytic reduction of CO2

Yuqing Shao et al.

Summary: This study demonstrates the effectiveness of ZnIn2S4-loaded NH-SiO2 for visible-light driven CO2 photocatalytic reduction, with significantly improved CO production rates attributed to enhanced charge separation efficiency and active sites provided by amine groups.

CATALYSIS SCIENCE & TECHNOLOGY (2022)

Review Chemistry, Physical

Metallic Copper-Containing Composite Photocatalysts: Fundamental, Materials Design, and Photoredox Applications

Xueteng Zhu et al.

Summary: Semiconductor photocatalysis, particularly with the modification of metallic copper, has gained increasing research interest in the past few years to improve solar harvesting efficiency. This review focuses on the rational design of copper-based composites and their applications in photoredox catalysis, discussing the preparation methods and potential for removing pollutants, producing hydrogen, reducing carbon dioxide, and converting organic matter. Opportunities and challenges in the design and synthesis of copper-based composites and their applications in photocatalysis are also discussed.

SMALL METHODS (2022)

Article Chemistry, Multidisciplinary

Achieving simultaneous Cu particles anchoring in meso-porous TiO2 nanofabrication for enhancing photo-catalytic CO2 reduction through rapid charge separation

Jinyan Xiong et al.

Summary: A facile solvo-thermal approach was used to prepare TiO2 nanoaggregates with copper particles, which could convert CO2 into CH4 and CO products under simulated solar irradiation. The optimal composite consisting of TiO2 supported with 5% Cu exhibited significantly higher CH4 and CO yields compared to pure TiO2. The involvement of Cu particles facilitated efficient charge separation and improved the photo-catalytic performance.

CHINESE CHEMICAL LETTERS (2022)

Review Chemistry, Multidisciplinary

Non-Noble Plasmonic Metal-Based Photocatalysts

Mahmoud Sayed et al.

Summary: This review comprehensively summarizes the recent advances and applications of non-noble plasmonic metal (NNPMs)-based photocatalysts. By introducing the principles of surface plasmon resonance (SPR) and discussing the functionalities and attributes of NNPMs in photocatalysis, their applications in pollutant removal, water splitting, CO2 reduction, and organic transformations are explored. The review concludes by addressing the current challenges and future prospects in the field of plasmon-based photocatalysis, emphasizing its interdisciplinary nature across materials science, chemistry, and physics.

CHEMICAL REVIEWS (2022)

Article Chemistry, Physical

Precursor self-derived Cu@TiO2 hybrid Schottky junction for enhanced solar-to-hydrogen evolution

Pei Qiu et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2022)

Article Chemistry, Physical

Photocatalytic CO2 reduction with water vapor to CO and CH4 in a recirculation reactor by Ag-Cu2O/TiO2 Z-scheme heterostructures

Xiaoning Wang et al.

Summary: A ternary Z-scheme Ag-Cu2O/TiO2 catalyst prepared by one-step chemical reduction method exhibited good photocatalytic activity for CO2 reduction under simulated sunlight, attributed to the formation of Z-scheme heterojunctions facilitating charge separation and enhanced carrier transfer via Ag nanoparticles.

JOURNAL OF ALLOYS AND COMPOUNDS (2022)

Article Multidisciplinary Sciences

Selective photocatalytic CO2 reduction in aerobic environment by microporous Pd-porphyrin-based polymers coated hollow TiO2

Yajuan Ma et al.

Summary: By incorporating Pd(II) sites into a coordination polymer on TiO2, selective adsorption of CO2 can be achieved for photocatalytic reduction in the presence of O-2, facilitating the conversion of CO2 to fuels.

NATURE COMMUNICATIONS (2022)

Review Chemistry, Physical

Emerging Strategies for CO2 Photoreduction to CH4: From Experimental to Data-Driven Design

Shuwen Cheng et al.

Summary: The review systematically summarizes recent applications of cutting-edge experimental and computational materials design strategies for the discovery of novel catalysts for CO2 photocatalytic conversion to CH4. Effective experimental catalyst engineering strategies and data-driven photocatalyst design are presented, emphasizing the combination of DFT, ML, and experiments as a powerful solution to accelerate the discovery of novel catalysts for photocatalytic reduction of CO2.

ADVANCED ENERGY MATERIALS (2022)

Article Engineering, Chemical

Fabrication Approach Impact on Solar-to-Hydrogen Evolution of Protonic Titanate-Derived Nano-TiO2

Shuo Li et al.

Summary: In this study, the impact of the fabrication method of protonic titanate on the photocatalytic hydrogen evolution of TiO2 nanostructures was investigated. The results showed that the TiO2 nanoflakes exhibited the highest H2 evolution rate among the four different TiO2 photocatalysts. Addition of Pt further increased the H2 production rate of the TiO2 nanoflakes, making it significantly higher than the nanorods, nanowires, and nanoflowers. The excellent photocatalytic performance of the TiO2 nanoflakes was attributed to their negative conduction band position, fast photoinduced charge carrier separation, and abundant active sites.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2022)

Article Chemistry, Physical

Co-embedding oxygen vacancy and copper particles into titanium-based oxides (TiO2, BaTiO3, and SrTiO3) nanoassembly for enhanced CO2 photoreduction through surface/interface synergy

Ge Yang et al.

Summary: Photocatalytic CO2 reduction into valuable fuel and chemical production is a promising strategy to address the issues of increasing greenhouse gases and sustainable energy shortage. A composite photocatalysis system can enhance charge separation and transfer, leading to efficient CO2 photoreduction.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

Article Engineering, Environmental

Advances for CO2 Photocatalytic Reduction in Porous Ti-Based Photocatalysts

Mingyang Li et al.

Summary: The photoreduction of CO2 into high value-added fuels is a prospective approach for dealing with energy depletion and global warming. Ti-based photocatalysts with porous structures have aroused wide concern due to their potential advantages such as high specific surface area, cost-effectiveness, earth-abundance, and non-toxicity. This review presents the current achievements on porous TiO2, Ti-based zeolites, and Ti-based metal-organic frameworks for CO2 photoreduction, and discusses multiple modification methods for optimizing the performance of these Ti-based materials. Finally, challenges and perspectives of porous Ti-based photocatalysts for CO2 photoreduction are proposed.

ACS ES&T ENGINEERING (2022)

Article Chemistry, Multidisciplinary

A 2D bimetallic Ni-Co hydroxide monolayer cocatalyst for boosting photocatalytic H2 evolution

Haiwei Su et al.

Summary: We report the use of two-dimensional Ni-Co hydroxide monolayers as a highly active cocatalyst for enhancing the photocatalytic H-2 evolution of 2D g-C3N4 nanosheets. The NiCo-HMs improve the kinetics of the catalytic reaction and show high photocatalytic H-2 evolution.

CHEMICAL COMMUNICATIONS (2022)

Article Nanoscience & Nanotechnology

Synergistic Integration of AuCu Co-Catalyst with Oxygen Vacancies on TiO2 for Efficient Photocatalytic Conversion of CO2 to CH4

Deli Jiang et al.

Summary: The study focuses on the selective conversion of CO2 into CH4 using a designed TiO2 nanosheet photocatalyst with AuCu alloy co-catalyst and oxygen vacancies, achieving high selectivity and productivity of CH4. The presence of oxygen vacancies contributes to charge separation and proton supply for deep reduction of CO2, while the AuCu co-catalyst enhances electron-hole pair separation and acts as active sites for CO2 reduction.

ACS APPLIED MATERIALS & INTERFACES (2021)

Review Chemistry, Physical

Visible-Light Responsive TiO2-Based Materials for Efficient Solar Energy Utilization

Wei Zhang et al.

Summary: This article reviews recent progress in the investigation of visible-light responsive TiO2-based materials, detailing the fabrication strategies, physical and chemical properties, and applications in various fields, with a focus on bandgap engineering, junction engineering, light absorption, charge transfer and separation, as well as surface reactions. New trends and ongoing challenges in this field are proposed and highlighted.

ADVANCED ENERGY MATERIALS (2021)

Article Energy & Fuels

Integrated S-Scheme Heterojunction of Amine-Functionalized 1D CdSe Nanorods Anchoring on Ultrathin 2D SnNb2O6 Nanosheets for Robust Solar-Driven CO2 Conversion

Xiaochun Ke et al.

Summary: A novel S-scheme SnNb2O6/CdSe-diethylenetriamine heterojunction was designed and showed enhanced activity in the solar-driven photocatalytic conversion of CO2 to CO, attributed to the synergy between CdSe-diethylenetriamine nanorods and SNO nanosheets in the S-scheme system.

SOLAR RRL (2021)

Article Chemistry, Physical

Amine-Modified S-Scheme Porous g-C3N4/CdSe-Diethylenetriamine Composite with Enhanced Photocatalytic CO2 Reduction Activity

Yao Huo et al.

Summary: Amine modification and the formation of the S-scheme heterojunction optimize the photocatalytic CO2 reduction performance of A-PCN/CdSe-DETA composite, achieving a remarkable CO production rate of 25.87 mu mol/(h g) under visible-light irradiation without the need for a sacrificial agent. This work sheds light on the functionalization of S-scheme photocatalysts using amine functional groups, opening up vast opportunities for applications beyond photocatalysis.

ACS APPLIED ENERGY MATERIALS (2021)

Article Energy & Fuels

Steering Multistep Charge Transfer for Highly Selectively Photocatalytic Reduction of CO2 into CH4 over Pd/Cu2O/TiO2 Ternary Hybrid

Di Li et al.

Summary: By designing a Pd/Cu2O/TiO2 ternary hybrid photocatalyst, high-efficiency and highly selective photocatalytic reduction of CO2 into CH4 is achieved, with a CH4 production rate of 42.8 mu mol g(-1) h(-1) and a selectivity of 99.5%. This is attributed to the consecutive multistep charge transfer between the Cu2O/TiO2 heterojunction and Pd in the hybrid catalyst, leading to a spatially separated electron-enriched surface (Pd) and hole-enriched surface (Cu2O) that contribute to the high conversion rate and selectivity of CH4.

SOLAR RRL (2021)

Review Chemistry, Multidisciplinary

Oxygen Vacant Semiconductor Photocatalysts

Lin Hao et al.

Summary: This review systematically summarizes the recent progress in oxygen vacant semiconductor photocatalysts, including the formation and characterizations of oxygen vacancies, the roles of oxygen vacancies in different types of photocatalysts, and the advanced applications in pollutant removal, H2 production, CO2 reduction, N2 fixation, and organic synthesis. Current challenges and future prospects of oxygen vacant materials are also discussed.

ADVANCED FUNCTIONAL MATERIALS (2021)

Review Chemistry, Multidisciplinary

Defect Engineering of Photocatalysts towards Elevated CO2 Reduction Performance

Meng Shen et al.

Summary: Defect engineering is an effective strategy to enhance photocatalytic CO2 reduction performance. By generating defects mainly in the form of vacancies and dopants, it can modulate the electronic structure and light absorption properties of photocatalysts, increasing surface active sites for CO2 activation and conversion. This approach can improve the CO2 reduction performance of photocatalysts in terms of activity, selectivity, and stability.

CHEMSUSCHEM (2021)

Article Energy & Fuels

Optimizing the Oxygen Vacancies Concentration of Thin NiO Nanosheets for Efficient Selective CO2 Photoreduction

Junxiang Xiang et al.

Summary: The concentration of oxygen vacancies directly affects the efficiency and selectivity of the NiO catalysts in the photocatalytic CO2 reduction reaction. Moderate oxygen vacancies enable strong CO2 binding and efficient charge transfer, while excessive vacancies reduce CO2 binding affinity and hinder charge mobility, leading to decreased performance in the reaction.

SOLAR RRL (2021)

Article Materials Science, Multidisciplinary

Defect engineering of photocatalysts for solar-driven conversion of CO2 into valuable fuels

Yiqiang He et al.

Summary: This paper focuses on how the structural defects in photocatalysts can be used to improve the efficiency of CO2 photoreduction, with an emphasis on the impact of defects on the electronic structure and charge carrier dynamics of the photocatalysts. Various defective semiconductors are discussed, and the challenges and prospects of defect engineering in the photoreduction of CO2 are analyzed.

MATERIALS TODAY (2021)

Article Nanoscience & Nanotechnology

Surface Basicity of Metal@TiO2 to Enhance Photocatalytic Efficiency for CO2 Reduction

Lei Jin et al.

Summary: Photocatalytic reduction of CO2 to valuable chemical fuels is of broad interest due to its potential to activate greenhouse gases using renewable energy input. The choice of metal cocatalysts and surface basicity of TiO2 can enhance the photocatalytic efficiency for CO2 photoreduction, with different metals showing varying activity and selectivity for CO and hydrocarbon production. The improvement of electron density and low proton affinity of metal cocatalysts play a key role in CO2 photoreduction.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Physical

Targeted regulation of exciton dissociation in graphitic carbon nitride by vacancy modification for efficient photocatalytic CO2 reduction

Fang Li et al.

Summary: The study focused on designing Nv-rich-CN to enhance carrier utilization and photocatalytic activity. Results showed that N vacancies effectively dissociate excitons into free charges and promote the process of CO2 photoreduction.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Chemistry, Physical

Selective photocatalytic reduction CO2 to CH4 on ultrathin TiO2 nanosheet via coordination activation

Zhi-Wen Wang et al.

Summary: Ultra-thin TiO2 nanosheet (NST) with abundant Ti3+ sites has been developed as a photocatalyst for high yield and selectivity in the conversion of CO2 to CH4. The NST selectively activates CO2 on its surface, forming bridging Ti dot CO2-Ti coordination species to lower the activation energy barrier and determine the selectivity for CH4 production via Ti-C coordination bond.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Article Engineering, Environmental

Atomically defined Co on two-dimensional TiO2 nanosheet for photocatalytic hydrogen evolution

Xin Wu et al.

Summary: This study successfully locates isolated Co atoms on the surface of TiO2 nanosheets, providing efficient catalytic sites for photocatalytic hydrogen evolution. X-ray absorption fine structure measurements confirm that the Co atoms are successfully dispersed on the TiO2 surface via grafting. Experimental and theoretical results demonstrate that the isolated Co atoms can accelerate electron transfer and hydrogen evolution reactions through effective Co-O electronic coupling.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Materials Science, Multidisciplinary

Assembly of amine-functionalized graphene oxide for efficient and selective adsorption of CO2

Yasamin Hosseini et al.

Summary: Amine-functionalized solid adsorbents have shown promising potential for capturing CO2 selectively under ambient conditions. Experimental results demonstrate significantly improved CO2 uptake using amine-functionalized GO samples, indicating excellent selectivity for capturing CO2.

MATERIALS CHEMISTRY AND PHYSICS (2021)

Review Chemistry, Physical

Fluorinated TiO2 Hollow Photocatalysts for Photocatalytic Applications

Jiabi Li et al.

Summary: Extensive studies have focused on synthesizing spherical microassemblies with specific surface functionalizations and hollow interiors for various applications. Focusing on the fabrication of fluorinated TiO2 porous hollow microspheres (F-TiO2 PHMs), this review highlights the simplified two-step templating method and template-free method based on the fluoride-mediated self-transformation (FMST) mechanism. The unique superstructures of F-TiO2 PHMs provide advantages for photocatalytic applications by improving light harvesting, mass transfer, and membrane antifouling, while in situ-introduced surface fluorine species enhance adsorption, activation of reactants, and surface trapping of photo-excited electrons and holes.

ACTA PHYSICO-CHIMICA SINICA (2021)

Article Chemistry, Multidisciplinary

Activating two-dimensional Ti3C2Tx-MXene with single-atom cobalt for efficient CO2 photoreduction

Yi-Hong Chen et al.

Summary: Artificial CO2 photoreduction to solar fuels using renewable energy sources is an eco-friendly and sustainable solution. This research shows that anchoring single cobalt atoms on two-dimensional Ti3C2Tx-MXene nano-sheets can significantly enhance the production rate of CO, providing a new avenue for the rational design of high-activity MXene-based photocatalysts for artificial CO2 conversion.

CELL REPORTS PHYSICAL SCIENCE (2021)

Article Chemistry, Multidisciplinary

An Mn-doped NiCoP flower-like structure as a highly efficient electrocatalyst for hydrogen evolution reaction in acidic and alkaline solutions with long duration

Xin Yu et al.

Summary: An Mn-doped NiCoP electrocatalyst with flower-like morphology and self-assembled nanosheets on a nickel foam substrate is synthesized and exhibits extraordinarily high catalytic activity and stability towards HER in both acidic and alkaline electrolytes. The electrocatalyst achieves low overpotentials for high current densities in both 0.5 M H2SO4 and 1 M KOH solutions, and shows enhanced stability in the alkaline solution, maintaining HER activity for at least 120 hours with negligible overpotential decay.

NANOSCALE (2021)

Article Chemistry, Applied

Construction of efficient active sites through cyano-modified graphitic carbon nitride for photocatalytic CO2 reduction

Fang Li et al.

Summary: In this study, cyano-modified porous g-C3N4 nanosheets were synthesized to increase the active site amount of photocatalysts, leading to enhanced photocatalytic activity for CO2 reduction under visible light. The introduction of cyano groups as active sites was confirmed through experiments, further validating their role in promoting photocatalytic reactions. This work demonstrates a promising route for efficient solar energy conversion through the design of active sites in photocatalysts.

CHINESE JOURNAL OF CATALYSIS (2021)

Review Chemistry, Multidisciplinary

Defective TiO2 for photocatalytic CO2 conversion to fuels and chemicals

Sushma A. Rawool et al.

Summary: This review article discusses the recent developments in photocatalytic CO2 conversion using defective TiO2, focusing on the synthesis methods, impact on properties, theoretical investigations, and challenges faced by photocatalysts for sustainable fuel production utilizing solar energy. Importance of enhancing photocatalyst performance is highlighted for successful implementation in combating climate change and meeting energy demands.

CHEMICAL SCIENCE (2021)

Article Chemistry, Physical

Boosting the activity and stability of Ag-Cu2O/ZnO nanorods for photocatalytic CO2 reduction

Fan Zhang et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2020)

Article Chemistry, Physical

Facile polyol-triggered anatase-rutile heterophase TiO2-x nanoparticles for enhancing photocatalytic CO2 reduction

Jinyan Xiong et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2020)

Review Chemistry, Multidisciplinary

Photocatalytic CO2 conversion: What can we learn from conventional COx hydrogenation?

Tingting Kong et al.

CHEMICAL SOCIETY REVIEWS (2020)

Review Chemistry, Multidisciplinary

Cocatalysts for Selective Photoreduction of CO2 into Solar Fuels

Xin Li et al.

CHEMICAL REVIEWS (2019)

Review Chemistry, Multidisciplinary

Dual Cocatalysts in TiO2 Photocatalysis

Aiyun Meng et al.

ADVANCED MATERIALS (2019)

Article Chemistry, Physical

Promoting solar-to-hydrogen evolution on Schottky interface with mesoporous TiO2-Cu hybrid nanostructures

Jiaxin Zhu et al.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2019)

Article Chemistry, Physical

Oxygen vacancies induced special CO2 adsorption modes on Bi2MoO6 for highly selective conversion to CH4

Xianglong Yang et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2019)

Review Chemistry, Physical

A review on modification of facet-engineered TiO2 for photocatalytic CO2 reduction

Zhuo Xiong et al.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS (2018)

Article Multidisciplinary Sciences

Tuning defects in oxides at room temperature by lithium reduction

Gang Ou et al.

NATURE COMMUNICATIONS (2018)

Review Chemistry, Multidisciplinary

CO2 photo-reduction: insights into CO2 activation and reaction on surfaces of photocatalysts

Xiaoxia Chang et al.

ENERGY & ENVIRONMENTAL SCIENCE (2016)

Article Chemistry, Physical

Progress in Black Titania: A New Material for Advanced Photocatalysis

Xiangye Liu et al.

ADVANCED ENERGY MATERIALS (2016)

Review Chemistry, Multidisciplinary

Defective TiO2 with oxygen vacancies: synthesis, properties and photocatalytic applications

Xiaoyang Pan et al.

NANOSCALE (2013)