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Review
Energy & Fuels
Amit Kumar et al.
Summary: This article provides a review on the transition from Z-scheme to S-scheme photocatalytic materials, discussing different types of heterojunctions and charge transfer mechanisms. It also presents the synthetic routes to S-scheme heterojunctions and highlights their current applications in pollutant degradation, hydrogen production, and CO2 conversion. The commercialization status and existing readiness and bottlenecks of S-scheme heterojunctions are also discussed.
Article
Chemistry, Physical
Xueping Sun et al.
Summary: Developing highly efficient and stable bifunctional electrocatalysts is crucial for water splitting reaction. In this study, a universal and scalable synthetic strategy was proposed to prepare nanosized transition metal phosphide encapsulated in nitrogen-phosphorus co-doped carbon (TMP@NPC) catalysts using green and inexpensive adenosine triphosphate (ATP) as a new phosphorus source. The as-prepared TMP@NPC catalysts exhibited excellent hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) activities with small overpotentials and robust capabilities. The CoP@NPC catalyst showed the lowest overpotentials and outstanding stability, and demonstrated excellent performance in overall water splitting as both cathode and anode. This work highlights the importance of green and general synthesis strategy in designing and constructing TMPs and reinforces the understanding of intimate interaction in coupled hybrid electrocatalysts.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Wei Wang et al.
Summary: Semiconductor oxides with porous structure have good gas permeability and large reaction surface, which is advantageous for gas sensing materials. Doping Co element in NiO/NiFe2O4 can significantly improve the detection ability for isopropanol by providing more active adsorption sites and enhancing the gas response.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Olavo M. Perrone et al.
Summary: Monitoring VOCs is crucial for human health, and semiconductor gas sensors are a promising strategy for detection. This study synthesized NiO/In2O3 heterostructure using innovative methods and investigated its performance as a gas sensor for detecting VOCs. NiO/In2O3 showed superior selectivity, stability, and sensitivity in detecting n-butanol due to the p-n heterojunction and increased adsorption sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Meng Sun et al.
Summary: A composite photocatalyst based on g-C3N4/CdS/corn straw hydrothermal carbon spheres was prepared and its photoelectric characteristics were studied. The composite showed synergistic photocatalytic performance, with enhanced carrier transfer rate and increased surface active sites.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Peikun Wu et al.
Summary: In this study, a nitrogen-doped biomass carbon microtubes/reduced graphene oxide (N-BCMT/RGO) composite aerogel with a three-dimensional multistage pore network structure was successfully prepared. It showed excellent microwave absorption properties with strong absorption and wide bandwidth.
Article
Engineering, Environmental
Linjia Li et al.
Summary: In this study, a morphological engineering approach was used to design a semiconductor-based photo-catalyst embedded with plasmonic nanostructures, resulting in a significant enhancement of its photocatalytic activity. The incorporation of carbon dots as charge channels facilitated the plasmon-enhanced charge separation within the semiconductor, as demonstrated by steady state and transient state surface photovoltage methods.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Zerui Miao et al.
Summary: In this study, an AgBr/BiOBr heterojunction with surface oxygen vacancies was synthesized using a simple chemical method, which showed significantly improved photoreduction rates of CO2 compared to pure BiOBr. The unique S-scheme band structure and oxygen vacancies were found to enhance the utilization of sunlight and increase the separation and transfer of photogenerated charge carriers, leading to efficient photocatalytic reduction of CO2.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Hualiang Wei et al.
Summary: Supercapacitors with hierarchical core-shell structure of Co3O4@NiO-1 demonstrate enhanced pseudocapacitance performance, high specific capacitance, and excellent cycling stability. By utilizing this material as positive electrode in an asymmetric supercapacitor, it achieves excellent specific capacitance and high energy density at different power densities, along with exceptional cyclic stability.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Environmental
Rajalakshmi Sakthivel et al.
Summary: Toxic substances in food pose a health hazard to consumers, leading to a need for simple and cost-effective analytical methods to ensure food safety. Researchers successfully detected DPA using double-shelled C@Ni/NiO hollow microspheres with excellent electrochemical performance, showing good selectivity and stability, suitable for fruit samples.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Engineering, Environmental
Song Li et al.
Summary: An experimental platform was built to verify the excellent properties of a composite sensitive material, and a gas sensing data prediction model was established to predict carbon monoxide concentration successfully.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Sivalingam Gopi et al.
Summary: The Co3O4@NiO composite catalyst shows promising catalytic performance for UOR and HER, with lower onset potential and Tafel slope, making it a potential catalyst for practical-level applications.
Article
Chemistry, Physical
Xiangyu Meng et al.
Summary: The study utilized 10 Prussian blue analogues (PBAs) as heterogeneous catalysts for photocatalytic CO2RR, showing good photocatalytic performance for CO production. Ni-Co PBA exhibited a mass evolution rate of 140 mmol g(-1) h(-1, an apparent quantum efficiency (AQY) of about 0.7%, and a selectivity of about 96.8% for CO. The CO2RR activities of (MCo)-Co-II PBAs are better than those of M-II-Fe PBAs, but the former's selectivities for CO are lower than those of the latter.
Article
Chemistry, Physical
Lang He et al.
Summary: A facile method was used to fabricate 3D nitrogen-doped graphitic carbons with embedded core-shell nanoparticles. These materials showed excellent photocatalytic activity and could be used for the design and synthesis of high-efficiency core-shell photocatalysts.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Chemistry, Physical
Qi Zhang et al.
Summary: A novel non-equilibrium photochemical strategy was developed for preparing OV-rich Co3O4, promoting CO2 activation, and a series of defect-rich metal oxides and metal sulfides were successfully synthesized using this method, suggesting its universality. The concentration of OVs in Co3O4 can be tuned by controlling the light-irradiation time.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Shaofeng Xiong et al.
Summary: This study designed and prepared a surface oxygen vacancy and graphene quantum dots co-modified photocatalyst, which exhibited enhanced conversion of CO2 to CO. By optimizing the catalyst structure, the separation efficiency and fluorescence lifetime of photogenerated electrons were improved.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Xiaoyang Yue et al.
Summary: Controlling heterostructure and intrinsic vacancy can optimize the BiVO4/CsPbBr3 S-scheme heterojunction, accelerating dynamic carrier mobility and enhancing CO2-to-CO conversion efficiency.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Liming Fu et al.
Summary: By introducing oxygen vacancies, the recombination of photogenerated electron-hole pairs in MgFe2O4 spinel was significantly suppressed, resulting in a dramatic enhancement of visible light absorption and chemisorption capacity of CO2. The sample Mg-Fe-750 with the richest oxygen vacancies exhibited the highest photocatalytic activity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Wenjing Zhou et al.
Summary: This study achieved efficient photoelectrochemical CO2 reduction to formate by synthesizing Cu-modified Bi2Se3 catalyst with selenium vacant sites. Experimental results showed that Cu doping improved CO2 adsorption, increased the electrochemical active surface area of the catalyst, and modified the electronic structure of Bi2Se3.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Review
Chemistry, Physical
Ipsita Som et al.
Summary: This article summarizes the fundamental aspects, structural and compositional engineering of TiO2-based photocatalysts for efficient photocatalytic CO2 reduction. It also provides a detailed study on the factors influencing the efficiency and selectivity of CO2 photoreduction reactions and offers an overview of the photocatalytic CO2 reduction mechanism supported by computational studies. Furthermore, it discusses the potential modification approaches and opportunities in this vital area of research.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Guobin Miao et al.
Summary: This study reports the use of 0D/2D CsPbBr3 quantum dot/CuCo2O4 nanosheet composites for photocatalytic CO2 reduction. These composites exhibit strong light absorption performance and enhanced photocatalytic activity, making them promising for generating renewable clean fuels.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Yuwei Zhang et al.
Summary: This study demonstrates the importance of heterogeneous interfaces in separating photocarriers, showing that excellent heterogeneous interfaces can be built in Ta3N5@CaTaO2N heterostructures, enabling rapid spatial photocarrier separation and enhancing photocatalytic activity. It highlights the potential of heterostructures for efficient solar water splitting.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Minghui Li et al.
Summary: This work successfully prepared CuO/g-C3N4 nanocomposites and found that the optimum 15%CuO/g-C3N4 sample exhibited higher efficiency in the photocatalytic degradation of Rhodamine B and CO2 reduction compared to pure g-C3N4. The morphology of CuO and the composition of CuO/g-C3N4 photocatalysts were characterized, revealing that the excellent performance of CuO/g-C3N4 nanocomposites is mainly attributed to their novel morphology, which affects light absorption, dynamics of charge carriers, and regulated band structure. The combination method of CuO nanospindles with g-C3N4 nanosheets by simple and green preparation provides a new pathway for the synthesis of CuO/g-C3N4 heterojunctions and their application in photocatalysis for environmental and energy purposes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Mengjing Jin et al.
Summary: This study reports an effective approach for encapsulating Fe2O3 and Co3O4 into nitrogen-doped porous carbon using metal organic frameworks as sacrificial templates. The electrode exhibited good electron transfer rate and rich accessible active sites, leading to excellent long-term stability and rate performance as an anode for lithium-ion batteries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Kaixiang Chen et al.
Summary: Designing novel NiO/porous carbon nanocomposites is an effective strategy to improve the conductivity and capacity fading of NiO in lithium-ion batteries. Covalent organic frameworks (COFs) have attractive properties for LIBs, providing a larger specific surface area and improved electrical conductivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
J. C. Murillo-Sierra et al.
Summary: This study evaluated the application of the WO3/ZnS Z-scheme-heterojunction photocatalyst in the photocatalytic reduction of CO2. The quantity of WO3 was found to significantly affect the growth of ZnS crystallite size, conduction band potential modulation, and production of light hydrocarbons. The highest hydrocarbon production rate was achieved using a 5 wt% WO3 photocatalyst with respect to ZnS, with propane and propylene as the main products.
JOURNAL OF CO2 UTILIZATION
(2022)
Review
Chemistry, Multidisciplinary
Dileep Maarisetty et al.
Summary: This review discusses the details of solar fuel production through photocatalysis, focusing on the effects of defect-engineering on efficiency and the relationship between defects and photocatalytic properties. The challenges and possible solutions in developing photocatalysts for solar fuel production are also highlighted.
JOURNAL OF CO2 UTILIZATION
(2022)
Review
Chemistry, Applied
Wanjun Sun et al.
Summary: This review introduces the application of cobalt-based heterogeneous catalysts in solar-driven conversion of carbon dioxide into high value-added fuels. Strategies including extending light absorption range, promoting charge separation, providing active sites, and lowering reaction barrier are discussed to improve the photocatalytic performance. The review also outlines the applications of cobalt-based photocatalysis in CO2 reduction, water splitting, and nitrogen fixation, and presents the central challenges and possible improvements for future research.
CHINESE JOURNAL OF CATALYSIS
(2022)
Review
Engineering, Environmental
Snehith Adabala et al.
Summary: The substantial increase in CO2 emissions and depletion of fossil fuels have raised concerns about the economy and environment, leading to a crisis for future life on Earth. Photocatalytic CO2 reduction using metal chalcogenides has been identified as a promising solution due to their feasible photoresponse range and favorable band structure alignment. This review focuses on the applicability and usage of various metal chalcogenides for CO2 photoreduction, emphasizing the environmental and industrial friendly conversion of CO2 to C1 and C2 fuels.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Applied
Ziyao Wan et al.
Summary: In this study, Ni modified porous In2O3 photocatalysts were synthesized and used for photocatalytic reduction of CO2 into renewable fuels. Characterization techniques revealed that Ni doping decreased crystal size, narrowed band gap, and improved visible light absorption capability, leading to enhanced activity for CO2 reduction. With optimal Ni doping, the production rates of H-2, CO, and CH4 were significantly higher compared to undoped samples.
Article
Engineering, Environmental
Lang He et al.
Summary: This work demonstrates a simple polymer thermal treatment strategy to develop high-dispersed Fe2O3/Fe@N-GC composites with a honeycomb-like N-doped graphitic carbon structure, which shows impressive sensitivity and selectivity for NO2 gas detection at room temperature. The optimal Fe2O3/Fe@N-GC composite exhibits a response of 25.48-100 ppm, response time of 2.13 s, recovery time of 11.73 s, detection limit of 10 ppb, and as long as 60 days of stability, making it a promising material for gas sensor applications.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Ying Gu et al.
Summary: A new strategy for synthesizing 2D porous MoP/Mo2N heterojunction nanosheets with excellent HER activity was presented in this study. The nanosheets exhibit favorable water dissociation kinetics, large accessible surface area, and enhanced mass-transport ability through pores, leading to low overpotentials in alkaline, neutral, and acidic electrolytes. The HER performance of the nanosheets surpasses that of commercial Pt/C in both neutral and alkaline media.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Xiantao Hu et al.
Summary: The study emphasizes the importance of H2O vapor adsorption and activation on photocatalysts for CO2 reduction, which has been overlooked in most reports. By utilizing a preferential adsorption mechanism and photothermal membrane-induced interfacial heating, efficient reduction of CO2 to CH4 with high evolution rates was achieved. The light-to-heat conversion process also enhances the utilization of light energy for more efficient performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Qingyuan Bi et al.
Summary: A direct solid-state reaction strategy was utilized to prepare uniform BP-BT materials with enhanced wide-spectrum sunlight absorption properties, showing efficient photocatalytic CO2 reduction to CH4. The optimized BP-BT exhibited superior CH4 formation activity, high selectivity, and excellent stability for CO2 transformation under solar light irradiation, with crucial steps revealed through analysis of kinetic isotope effects and in situ spectroscopy.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Liuyun Chen et al.
Summary: In this study, Co3O4/CdS composites were prepared by ultrasonication and stirring for photocatalytic hydrogen production from water splitting. The results showed the enhancement of charge transfer rate and suppression of electron-hole pair recombination in the composites, leading to significantly increased photocatalytic activity.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Environmental
Ruijie Yang et al.
Summary: In this study, a highly efficient Z-scheme ZnIn2S4-NiO/BiVO4 photocatalytic system was successfully constructed and the photocatalytic reaction mechanism and pathway of hydrogen (H2) evolution and formaldehyde (HCHO) degradation were uncovered. The effects of oxygen (O2) and pH on the photocatalytic activity were explored, showing that they are crucial for H2 production and HCHO degradation. The results provide insights for optimizing simultaneous photocatalytic H2 production and HCHO degradation.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Engineering, Environmental
Maansi Aggarwal et al.
Summary: In the past decade, anthropogenic CO2 emissions have become a major focus in the environmental issues. Graphene has been widely explored as a catalyst for solar fuel generation, but its shortcomings, such as faster recombination rates and photo-corrosion, have slightly hindered its growth. Research also delves into the role of graphene and its various modifications in CO2 conversion.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Materials Science, Multidisciplinary
Maruthappan Manikandan et al.
Summary: In this study, NiO/Co3O4 nanocomposites were synthesized by hydrothermal method and used as electrode materials for electrochemical supercapacitors. The electrochemical performances of NiO/Co3O4 nanocomposites were found to be dependent on their mass ratio, with the 1:1 ratio showing the highest specific capacitance. This investigation offers a useful strategy for developing electrode materials with improved electrochemical performance.
Article
Chemistry, Physical
Jun Di et al.
Summary: Utilizing Co2N as a cocatalyst significantly enhances the CO2 photoreduction performance of BiOBr nanosheets by promoting electron transfer and suppressing the formation of COOH* intermediates, ultimately optimizing the CO2 photoreduction activity.
Article
Chemistry, Multidisciplinary
Pinki Devi et al.
Summary: This study focuses on the photocatalytic reduction of CO2 to CH4 using In2O3-rGO nanocomposites with varying rGO content. The enhanced catalytic activity of In2O3-rGO nanocomposites compared to In2O3 nanostructures is attributed to the improved separation of photogenerated electron-hole pairs. The mechanism based on oxygen vacancies mediated charge transfer process explains the observed enhancement in the photocatalytic reduction of CO2.
JOURNAL OF CO2 UTILIZATION
(2021)
Review
Chemistry, Physical
Taozhu Li et al.
Summary: This Minireview introduces the basic principles and challenges of photocatalytic CO2 reduction, and discusses the research progress of FLPs in the activation of CO2/H2O molecules, charge separation and transfer, and product selectivity. It also presents the challenges in photocatalytic CO2 reduction and briefly describes future development directions.
Article
Chemistry, Physical
Qixiang Deng et al.
Summary: CoNi binary metal oxide superstructures assembled with cross-stacked nanosheets have been prepared through a two-step thermal annealing process, exhibiting excellent lithium-ion storage performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Analytical
Xi Wang et al.
Summary: Hierarchical hollow microcubes functionalized by Pt catalysts were demonstrated as a sensing material for H2S gas detection. The gas sensors based on Co3O4@NiO-2.0@Pt3.0 microcubes exhibited boosted selectivity and enhanced sensing responses, attributed to the synergistic effects of diverse compositions and the advantages of the hierarchical hollow microstructure.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Nanoscience & Nanotechnology
Xiaoqin Pan et al.
Summary: The study introduced a strategy to prepare S-scheme photocatalyst TiO2/chlorophyll, which significantly improved electron transfer efficiency. Under light illumination, TiO2/chlorophyll showed excellent bactericidal effect and extended the lifespan of masks.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Physical
Mingmei Li et al.
Summary: Constructing oxygen-vacancy-rich CeO2-based heterojunctions can enhance oxygen chemisorption and photoexcited electron transfer, thereby improving the efficiency of molecular O-2 activation and facilitating the generation of reactive oxygen species, with potential applications in the removal of pollutants and bacteria in water.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Analytical
Haineng Bai et al.
Summary: A gas sensor utilizing CuO/rGO nanoflakes was successfully developed for detecting ppb-level NO2 gas at room temperature. The sensor demonstrated ultrahigh response behavior, fast response time, reliability, and long-term stability. The improved gas-sensing response was attributed to synergistic effects between CuO and rGO.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Physical
Hiroyuki Takeda et al.
Summary: Two dinuclear Cu(I) complexes were synthesized, with one showing outstanding redox photosensitizing properties for photocatalytic CO2 reduction. A Fe(II) complex was used as the catalyst, resulting in a 14.1% quantum yield of CO production. The Cu dimer displayed significant durability and a high turnover number in the reaction.
Article
Chemistry, Multidisciplinary
Jun Zhang et al.
Summary: The study developed an effective strategy to facilitate CO2 activation and reduction by in situ growth of ZnO nanowire arrays on the electronic-rich surface of N-doped reduced graphene oxide. The composite material showed significantly enhanced photocatalytic CO2 reduction to CH3OH performance, with 3D N-rGO acting as a trifunctional co-catalyst supporting the growth of ZnO NWAs, improving electron-hole pair separation, and serving as CO2 adsorption and reduction active sites. This work demonstrates a promising multifunctional co-catalyst for the photoreduction of CO2.
JOURNAL OF CO2 UTILIZATION
(2021)
Article
Chemistry, Physical
Lang He et al.
Article
Engineering, Environmental
Jianan Yu et al.
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
A. Nagu et al.
RESEARCH ON CHEMICAL INTERMEDIATES
(2020)
Article
Chemistry, Multidisciplinary
Asif Hussain Khoja et al.
RESEARCH ON CHEMICAL INTERMEDIATES
(2020)
Article
Nanoscience & Nanotechnology
Yan-Yang Li et al.
ACS APPLIED MATERIALS & INTERFACES
(2020)
Article
Electrochemistry
Ashique Kotta et al.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2020)
Article
Chemistry, Applied
Wanjun Sun et al.
CHINESE JOURNAL OF CATALYSIS
(2020)
Article
Chemistry, Multidisciplinary
Xiaoyong Wu et al.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2019)
Article
Chemistry, Multidisciplinary
Jeong Woo Park et al.
JOURNAL OF THE KOREAN CHEMICAL SOCIETY-DAEHAN HWAHAK HOE JEE
(2017)
