Related references
Note: Only part of the references are listed.
Article
Chemistry, Physical
Hongqiang Jin et al.
Summary: Regulating the density of metal single atoms and exploring their interaction can enhance the performance of single-atom catalysts (SACs). In this study, a series of Cu SACs with densities ranging from 0.1 to 2.4 atoms/nm2 were produced. It was found that the catalytic activity in the benzene hydroxylation reaction was proportional to the Cu single-atom density. Mechanistic studies revealed that the interactions among neighboring single-atom moieties in ultra-high-density Cu SACs altered the electronic structures of Cu single atoms, resulting in stronger center dot OH adsorption, which improved the benzene hydroxylation reaction by suppressing the formation of O2.
Article
Chemistry, Physical
Shinya Higashimoto et al.
Summary: Phenol was synthesized directly from benzene under visible-light irradiation in the presence of water and oxygen. The effects of several noble metal co-catalysts on the selective hydroxylation of benzene over WO3 photocatalysts were extensively investigated. The photocatalytic activities of WO3 for phenol formation strongly depended on the co-catalyst, with the following order: Pt-WO3 > Au-WO3 > Pd-WO3. Furthermore, bimetal co-catalysts, such as Pd/Pt, Pd/Au, and Pt/Au, deposited on WO3 photocatalyst were also studied. The Pd/Pt-WO3 photocatalyst exhibited the highest photocatalytic activity for phenol formation due to an effective oxygen reduction reaction (ORR) facilitated by the bimetallic Pd/Pt co-catalyst.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Guanglan Di et al.
Summary: The surface atomic arrangement and coordination of crystal facets have a significant impact on the catalytic reactivity of photocatalysts. By manipulating the solvent environment, a series of BiOBr nanosheets with different dominating facets ((001) and (010)) and simultaneously decorated metallic Bi and oxygen vacancies (OVs) on the preferred facets ((010)) were synthesized using a one-step solvothermal route. The resulting Bi/OVBiOBr-(010) showed superior performance in O2 activation and pollutant degradation compared to BiOBr-(010) with mono OVs, bare BiOBr-(010), and other well-known photocatalysts, under both the same catalyst loading and optical thickness conditions. The synergistic effects of the Bi-OV dual active sites in O2 adsorption-activation and charge separation-transfer were confirmed through experimental characterization and DFT calculation. This study highlights the facet-dependent synergy of plasmonic metal-defect dual active sites and provides insights into the rational design of photocatalysts for more efficient O2 activation and refractory pollutant degradation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Szymon Dudziak et al.
Summary: Anatase nanoparticles with {0 0 1}, {1 0 0}, and {1 0 1} facets were synthesized and doped with niobium to investigate the self-trapping of excess electrons and their photocatalytic activity. The presence of excess electrons and the structure of the doped anatase samples were confirmed through structural and spectroscopic analyses. The introduced electrons were found to localize on the surface titanium sites only for the {1 0 1} facets. The dopant-introduced electrons can enhance the photocatalytic activity of anatase structures with {0 0 1} and {1 0 0} facets. The dopant effect on photocatalytic activity depends on the exposed facet.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Physical
Liangpang Xu et al.
Summary: A novel pyrophosphate-based proton shuttle strategy is proposed to improve on-site photocatalytic H2O2 generation in alkaline waters for organic pollutant treatment. The pyrophosphate-incorporated g-C3N4 (PCN) photocatalyst shows a record-high alkaline H2O2 synthesis rate and apparent quantum yield under visible light. Mechanism study demonstrates that the pyrophosphate serves as a proton shuttle to adsorb and provide protons, and as active sites for O2 adsorption and activation to promote O2 reduction, greatly benefiting the formation of H2O2. This work provides a promising approach for preparing photocatalysts with superior alkaline H2O2 synthesis efficiency for on-site treatment of organic pollutants.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Chemistry, Multidisciplinary
Kun Zhang et al.
Summary: In this study, a silver nanoparticle-decorated titanium dioxide nanotube array cathode was designed to introduce synergistic photoelectric effect and plasmonic interaction, which accelerated the CO2 reduction/evolution reactions. The resulting Li-CO2 battery showed promising performance in terms of low charge voltage, cycling stability, and high rate capability.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Lingling Zhai et al.
Summary: The correlation between work function and built-in electric field (BEF) is crucial for understanding the intrinsic reaction mechanism of metal-support electro-catalysts. In this study, a Pt@CoOx electrocatalyst with a large work function difference and strong BEF was presented, showing outstanding hydrogen evolution activity in a neutral medium. The experimental and theoretical results confirmed the interfacial charge redistribution induced by the strong BEF, which optimized the adsorption energy of hydrogen and hydroxide. This work provides new insights into the neutral hydrogen evolution mechanism and proposes new design principles for efficient electrocatalysts for hydrogen production in neutral medium.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Engineering, Environmental
Ziru Wang et al.
Summary: In this study, a heteropolyacid H3PW12O40 was used as a photocatalyst for the one-pot oxidation of benzene with O-2 to synthesize phenol with high yield and selectivity. The addition of acetonitrile to the reaction solution inhibited the overoxidation of phenol, allowing for efficient phenol formation. Moreover, the H3PW12O40 photocatalyst showed stability and could be reused with minimal decrease in phenol formation rate.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Multidisciplinary
Zhenwei Zhang et al.
Summary: This review systematically presents the recent advances in porous organic polymers (POPs) for visible-light driven organic transformations. The common construction strategies for POP-based photocatalysts are summarized, and the synthesis methods and organic reaction types for constructing various types of POPs are categorized and summarized. The specific reactions of current light-driven POP-mediated organic transformations are classified and introduced. The current state of development and the problems faced in light-driven organic transformations by POPs are outlined, and some perspectives are presented to motivate exploration of solutions to these problems and confront the present challenges in the development process.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Engineering, Environmental
Menglan Xiao et al.
Summary: The study focused on the electronic metal-support interaction to enhance the catalytic performance of Pt@Co3O4 catalysts in toluene degradation. The catalyst showed excellent activity, water resistance, and long-term stability. Surface oxygen species played a crucial role in toluene degradation and could efficiently be replenished by gaseous oxygen.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Lingdong Zeng et al.
Summary: Carbon encapsulated iron catalysts with alloyed Fe and Co cores demonstrate improved catalytic activity for hydroxylation of benzene to phenol by activating H(2)O(2). The phenol yield and selectivity of FeCo@C catalyst are significantly higher than those of Fe@C and Co@C catalysts. This alloyed catalyst shows promise for liquid-phase reactions using H(2)O(2) as the oxidant.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Chemistry, Physical
Man Yang et al.
Summary: Tungsten-based catalysts are widely studied in the selective hydrogenolysis of secondary C-O bonds. In this study, a Pt/Al-WOx catalyst, with atomically dispersed alumina as a promoter, is successfully synthesized and found to exhibit higher activity and selectivity compared to the unpromoted Pt/WOx catalyst. Spectroscopy characterizations and chemisorption experiments reveal that this enhanced performance is attributed to the in-situ generation of oxygen vacancies on WOx by atomically dispersed alumina in a hydrogen atmosphere, which leads to increased selective adsorption of glycerol and in-situ Bronsted acid sites for the activation of secondary C-O bonds.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Marcos A. R. da Silva et al.
Summary: This study presents an alternative method for the preparation of highly active Fe single-atom catalysts (SACs) with Fe-N4 sites, which exhibit high selectivity in the oxidation of C-H bonds. The catalyst obtained through ion exchange can effectively oxidize C-H bonds to ketones under light irradiation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Baoying Yang et al.
Summary: The encapsulation of ZFO with carbons enhances its photocatalytic activity and durability by protecting ZFO from corrosion and metal leaching, facilitating charge separation, and increasing benzene adsorption. The resulting ZFO@C photocatalyst is expected to have broad applications in green synthesis of fine chemicals.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Xingyu Liu et al.
Summary: Fabricating near-infrared responsive catalysts is crucial for maximizing the utilization of solar energy. This study demonstrates the improved upconversion and charge separation performances of WO3 through atomic doping of Cu element. The introduction of Cu acts as trapping sites for photogenerated charges and leads to charge redistribution, enhancing the charge separation process. Consequently, excellent tetracycline photodegradation performance under NIR light is achieved.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xinhui Ye et al.
Summary: This study demonstrates the use of iron sites immobilized on defective BiOBr nanosheets as an efficient and selective photocatalyst for the activation of O2 to O1(2), achieving high conversion rates and selectivity in various organic oxidation reactions. The Fe3+ species anchored by oxygen vacancies facilitate charge separation and migration, promote effective adsorption of O2, and boost the quantum yield of excited triplet state, leading to enhanced photocatalytic performance. This work highlights the important role of metal sites anchored on semiconductors in regulating charge/energy transfer during heterogeneous photocatalysis and provides a new approach for designing high-performance photocatalysts.
Article
Multidisciplinary Sciences
Lei Luo et al.
Summary: This study demonstrates the activation of methane under visible irradiation through the integration of atomic Pd and oxygen vacancies on In2O3 nanorods. The optimized catalyst shows high yield of oxygenates and selectivity of primary products, providing new insights for photocatalytic methane oxidation.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Huan Chai et al.
Summary: The chemical microenvironment at the interface plays a crucial role in efficient photoelectrochemical water oxidation. In this study, a covalent triazine framework was used to modulate the interface microenvironment between Gd-doped hematite and the cobalt silicate cocatalyst. Gd doping increased the donor density and reduced charge transfer resistance, while coordination bonds provided pathways for charge flow and enhanced the average oxidation state of Co. The conjugated system of the framework allowed for easy electron delocalization. These modifications effectively passivated the surface state and suppressed electron-hole recombination.
Article
Chemistry, Applied
Xiaolu Liu et al.
Summary: Bridging laboratory research and practical utilization is crucial for developing green ammonia synthetic technologies. A decentralized photo-assisted electrochemical-based demonstrator has been proposed, which uses defect-laden WO3 as the working electrode and a commercial PV panel for renewable electricity. System-level energy and cost analysis reveal its economic viability, enabling the integration of small-scale green ammonia demonstrators into standalone farm systems.
JOURNAL OF ENERGY CHEMISTRY
(2022)
Review
Nanoscience & Nanotechnology
Ernest Pastor et al.
Summary: Defects play a crucial role in solids and catalytic reactions. Understanding the charged defects and polarons in metal oxides is essential for optimizing materials for solar energy conversion, especially in metal oxide (photo)electrocatalysts. In photocatalysis, defects can stabilize charge separation and mediate rate-limiting catalytic steps.
NATURE REVIEWS MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Usman Qumar et al.
Summary: This article discusses the potential use of metal oxide nanomaterials in water treatment, focusing on their selective adsorption and semiconductor photocatalysis properties for the removal of organic contaminants and heavy metal ions. Various strategies to enhance photocatalytic performance are introduced. The review provides important insights for researchers in the field of water treatment and material science.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Ting Zhang et al.
Summary: This study reports a highly active and selective non-noble metal catalyst for the selective oxidation of benzene to phenol by regulating the electron configuration of a single-atom Cu catalyst, with low H2O2 consumption. The catalyst exhibits high benzene conversion and phenol selectivity, making it a promising candidate for industrial production of phenol.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Ziru Wang et al.
Summary: In this study, Pt-loaded 1D monoclinic WO3 nanorods (Pt/m-WNR) showed higher activity in the photocatalytic oxidation of benzene to phenol under ambient conditions and visible light than other Pt/WO3 catalysts with different crystal structures and morphologies. Pt/m-WNR exhibited high stability in repeated reactions. The specific performance of Pt/m-WNR was attributed to the efficient reduction of O-2 to produce hydroxyl radicals via H2O2 as an intermediate, as evidenced by both experimental and theoretical findings.
Article
Chemistry, Physical
Min Huang et al.
Summary: In this study, a novel Cu and W codoped TiO2 photocatalyst was fabricated to achieve selective photooxidation of methane into oxygenates at ambient temperature, with limited formation of CO2. The Cu-W-TiO2 photocatalyst exhibited high productivity and selectivity, and its improved performance was attributed to the modulation of electronic and band structure, which facilitated methane activation and hindered overoxidation of oxygenates.
Article
Chemistry, Multidisciplinary
Hanying Liang et al.
Summary: Researchers addressed the issue of metal leaching during the photocatalytic process by conformably coating FeVO4 nanorods with an atomically-precise thickness controlled dense Al2O3 layer. This improved the photocatalytic performance and durability of FeVO4@Al2O3.
Article
Engineering, Environmental
Xiao Zhang et al.
Summary: Copper clusters are incorporated into graphitic carbon nitride via a two-step thermal polymerization process, forming a superior Cu-g-C3N4 composite with highly efficient charge transfer and enhanced photocatalytic activity. The black Cu-g-C3N4 nanosheets exhibit enhanced ferromagnetism, providing fundamental knowledge of Cu-incorporated g-C3N4 composite material. This composite also shows excellent visible-light-responsive photocatalytic hydrogen generation and benzene oxidation performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Sonu Bhandari et al.
Summary: Selective oxidation of benzene to phenol in a single step was achieved using a nanostructured iron chromite spinel catalyst under mild and environmentally friendly conditions. The catalyst demonstrated good recyclability and heterogeneous catalytic activity. DFT calculations supported the experimental results and provided insights into the reaction mechanism.
Review
Chemistry, Physical
Xing Zhang et al.
Summary: The article discusses the influence of multidimensionalities on the physicochemical properties of materials, using photoactive tungsten oxide (WO3) as an example to explore the performance and challenges of single-dimensional and mixed-dimensional structures in solar energy conversion applications.
Article
Chemistry, Multidisciplinary
Zhen Wei et al.
Summary: This study demonstrated the design of a tungsten oxide catalyst with oxygen vacancies for photocatalytic oxygen evolution, which showed improved performance compared to pure WO3. Transient absorption spectroscopy revealed the mechanism of trap states generation to inhibit recombination of carriers. Furthermore, the addition of a Pt cocatalyst further enhanced the photocatalytic activity.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Gang Zhou et al.
Summary: In this study, a series of porous metal-organic frameworks (MOFs) were successfully prepared via a developed solvothermal process, and the optimized bimetallic MOF sample was shown to significantly accelerate the degradation of norfloxacin under sunlight radiation. Electronic hybridization between Fe3+ and Co2+ metal centers in bimetallic sites enhanced solar response and catalytic activity, leading to efficient degradation of norfloxacin.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Review
Engineering, Environmental
Qi Li et al.
Summary: This study discusses the feasibility of using photocatalysis technology to activate molecular oxygen and explores potential applications and activation mechanisms. It summarizes the methods of analyzing ROS, the application of activated molecular oxygen in oxidative reactions, and presents future research challenges and directions.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Chemistry, Physical
Lunqiao Xiong et al.
Summary: This review provides an overview of the fundamentals of reactive oxygen species in photocatalytic organic oxidations and discusses strategies to improve the selectivity of high value chemicals. Difficulties and challenges in developing highly selective oxidation photocatalysts are comprehensively discussed to guide future research focus.
ADVANCED ENERGY MATERIALS
(2021)
Review
Multidisciplinary Sciences
Yichao Wang et al.
Summary: Two-dimensional metal oxides and chalcogenides are considered as promising electro- and photocatalysts, but their catalytic performances are relatively poor due to low electrical conductivity, few active sites, and fast charge recombination. Efforts have been made to improve their catalytic activities through rational structural design and chemical modification.
Article
Chemistry, Multidisciplinary
Mingliang Xu et al.
Summary: The presence of surfactants on the surface of metal cocatalysts can significantly affect the electron transfer rate between the metal and MOF, and removing these surfactants can improve the efficiency of photocatalytic hydrogen production.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Zhaoli Sun et al.
Summary: By constructing surface oxygen vacancies (SOVs) at the Pd-Bi2MoO6 interface, a Pd/BMO-SOVs structure was formed, greatly enhancing the utilization efficiency of photoexcited carriers and Pd clusters in selective oxidation reactions.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Engineering, Environmental
Liang Zhou et al.
Summary: The novel visible-light-driven 0D/2D Ag2WO4/WO3 S-scheme heterojunction photocatalysts exhibit excellent photocatalytic performance, degrading oxytetracycline and typical dyes efficiently. The synthesized photocatalysts provide new insights into design of high-efficient antibiotic and dye degradation systems.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Tao Chen et al.
Summary: In this study, an efficient carbon catalyst was prepared through hydrothermal carbonization of biomass-derived glucose, showing superior activity in benzene oxidation reaction and achieving a high phenol yield. The fast reaction was attributed to the formation of small-sized primary carbon particles with abundant surface oxygen species enhancing adsorption.
APPLIED CATALYSIS A-GENERAL
(2021)
Review
Chemistry, Physical
Ge Yang et al.
Summary: Photocatalytic technology can convert CO2 into clean fuels, alleviating energy and environmental crises. Tungsten oxides show potential as photocatalysts for CO2 reduction, and their catalytic activity can be improved through engineering of crystal facets/phases/structures/defects/compositions.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Article
Chemistry, Physical
Danlei Wei et al.
Summary: The study demonstrates that silylated iron vanadate nanorods can serve as promising photocatalysts for directing hydroxylation of benzene to phenol, by utilizing the unique benefits of covalently bonded organosilane groups to achieve kinetic control of heterogeneous photocatalytic reactions.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Physical
Yating Wang et al.
Summary: A facile strategy was developed to synthesize defect-engineered 3DOM WO3 photonic crystals with enhanced oxygen evolution rate, good light harvesting, and excellent charge transport properties. The slow photon effect and bulk oxygen vacancy played crucial roles in improving light harvesting efficiency and promoting electron-hole separation.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Review
Nanoscience & Nanotechnology
Deying Luo et al.
NATURE REVIEWS MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Yueshuang Mao et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2020)
Article
Chemistry, Physical
Juan-Juan Li et al.
APPLIED SURFACE SCIENCE
(2020)
Article
Engineering, Environmental
Jiaxin Li et al.
CHEMICAL ENGINEERING JOURNAL
(2020)
Review
Chemistry, Physical
Chao Xie et al.
Article
Chemistry, Multidisciplinary
Yunyang Qan et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2020)
Article
Chemistry, Physical
Jing Zhou et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2020)
Review
Chemistry, Physical
Xue Yang et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
Article
Nanoscience & Nanotechnology
Erjun Lu et al.
ACS APPLIED NANO MATERIALS
(2020)
Article
Engineering, Environmental
Xuejun Zou et al.
CHEMICAL ENGINEERING JOURNAL
(2020)
Review
Materials Science, Multidisciplinary
Xianshun Sun et al.
Article
Chemistry, Multidisciplinary
Xianshun Sun et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Review
Chemistry, Physical
Di Zu et al.
Article
Chemistry, Multidisciplinary
Feiyan Xu et al.
ADVANCED FUNCTIONAL MATERIALS
(2019)
Article
Chemistry, Multidisciplinary
Jinkyu Park et al.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2019)
Article
Chemistry, Multidisciplinary
Dali Liu et al.
Article
Chemistry, Physical
Luyang Wang et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Chemistry, Multidisciplinary
Wei Sun et al.
CHEMICAL COMMUNICATIONS
(2019)
Article
Chemistry, Physical
Peng Chen et al.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2018)
Article
Chemistry, Multidisciplinary
Jie Meng et al.
Article
Multidisciplinary Sciences
Yu Zhou et al.
NATURE COMMUNICATIONS
(2018)
Article
Chemistry, Physical
Yiqiong Zhang et al.
JOURNAL OF MATERIALS CHEMISTRY A
(2018)
Article
Chemistry, Multidisciplinary
Hui Wang et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Article
Chemistry, Multidisciplinary
Hui Wang et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2017)
Review
Chemistry, Multidisciplinary
Yoshio Nosaka et al.
Article
Chemistry, Multidisciplinary
Ning Zhang et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2016)
Article
Chemistry, Physical
Dengke Wang et al.
Article
Chemistry, Physical
Perumal Devaraji et al.
Article
Chemistry, Physical
Mingfei Shao et al.
CHEMISTRY OF MATERIALS
(2012)
