다중혈관 관상동맥 환자에서 y-문합을 이용하여 양쪽 내흉동맥만을 사용한 우회술의 조기 성적

Single-layer metal dichalcogenides are two-dimensional semiconductors that present strong potential for electronic and sensing applications complementary to that of graphene.

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Electronics and optoelectronics of two-dimensional transition metal dichalcogenides.

Deposits of clastic carbonate-dominated (calciclastic) sedimentary slope systems in the rock record have been identified mostly as linearly-consistent carbonate apron deposits, even though most ancient clastic carbonate slope deposits fit the submarine fan systems better. Calciclastic submarine fans are consequently rarely described and are poorly understood. Subsequently, very little is known especially in mud-dominated calciclastic submarine fan systems. Presented in this study are a sedimentological core and petrographic characterisation of samples from eleven boreholes from the Lower Carboniferous of Bowland Basin (Northwest England) that reveals a >250 m thick calciturbidite complex deposited in a calciclastic submarine fan setting. Seven facies are recognised from core and thin section characterisation and are grouped into three carbonate turbidite sequences. They include: 1) Calciturbidites, comprising mostly of highto low-density, wavy-laminated bioclast-rich facies; 2) low-density densite mudstones which are characterised by planar laminated and unlaminated muddominated facies; and 3) Calcidebrites which are muddy or hyper-concentrated debrisflow deposits occurring as poorly-sorted, chaotic, mud-supported floatstones. These

Phd by thesis

Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications

This critical review shows the basis of photocatalytic water splitting and experimental points, and surveys heterogeneous photocatalyst materials for water splitting into H2 and O2, and H2 or O2 evolution from an aqueous solution containing a sacrificial reagent Many oxides consisting of metal cations with d0 and d10 configurations, metal (oxy)sulfide and metal (oxy)nitride photocatalysts have been reported, especially during the latest decade The fruitful photocatalyst library gives important information on factors affecting photocatalytic performances and design of new materials Photocatalytic water splitting and H2 evolution using abundant compounds as electron donors are expected to contribute to construction of a clean and simple system for solar hydrogen production, and a solution of global energy and environmental issues in the future (361 references)

Heterogeneous photocatalyst materials for water splitting

Semiconductor-based photocatalysis is considered to be an attractive way for solving the worldwide energy shortage and environmental pollution issues. Since the pioneering work in 2009 on graphitic carbon nitride (g-C3N4) for visible-light photocatalytic water splitting, g-C3N4 -based photocatalysis has become a very hot research topic. This review summarizes the recent progress regarding the design and preparation of g-C3N4 -based photocatalysts, including the fabrication and nanostructure design of pristine g-C3N4 , bandgap engineering through atomic-level doping and molecular-level modification, and the preparation of g-C3N4 -based semiconductor composites. Also, the photo-catalytic applications of g-C3N4 -based photocatalysts in the fields of water splitting, CO2 reduction, pollutant degradation, organic syntheses, and bacterial disinfection are reviewed, with emphasis on photocatalysis promoted by carbon materials, non-noble-metal cocatalysts, and Z-scheme heterojunctions. Finally, the concluding remarks are presented and some perspectives regarding the future development of g-C3N4 -based photocatalysts are highlighted.

Polymeric Photocatalysts Based on Graphitic Carbon Nitride

Editorial Environmental Photocatalysis

Radio-over-fiber systems with delta-sigma-modulation for MMW-based indoor communication

The invention discloses a suspension type combined glass cleaner. The suspension type combined glass cleaner is characterized by comprising an upper metal block which is a sprayer (1) and a lower metal block which is an air ejector (2). The bottom of the sprayer (1) and the top of the air ejector (2) are respectively provided with a row of nozzles (3) which are provided with atomization blades (4), and magnetic sensors (5) are closely connected with the nozzles (3); water pushing and pressurizing sheets (6) are embedded inside the sprayer (1) and obliquely stacked at 45 degrees, air chambers (7) are formed among the water pushing and pressurizing sheets (6), and the spacing between neighboring air chambers (7) is 0.5-1 cm; the outsides of the sprayer (1) and the air ejector (2) are provided with pipes connected with the outside, which include an upper pipe (8) and a lower pipe (10), and meanwhile, efficient glass cleaning agent (9) can be filled inside the upper pipe (8). The suspension type combined glass cleaner eliminates danger and complexity of original cleaning modes, atomized water sprayed from the nozzles can achieve large-area spraying, so that the trouble of blind angles and cleaning incapability in high places can be eliminated.

Suspension type combined glass cleaner

DOI: 10.1002/adsu.202200478 In article number 2200364, Liu and colleagues reported enhanced CO2 photoreduction over Ni(OH)2-x/WO3 nanofibers, which were prepared by in situ growth of freestanding oxygenvacancy Ni(OH)2-x nanosheets on WO3 nanofibers. The Ni(OH)2-x/WO3 nanofibers exhibit an enhanced CO production rate with respect to WO3 (54.4 vs 8.1 μmol g−1 h−1). The CO2 isotope tracing experiment confirmed that the CO product originated from the input CO2. The article with number 2200189 presents n-type CoP2 semiconductors as one of the main active components for efficient hydrogen evolution obtained from bulk P-CoV-LDH (layered double hydroxide). To achieve oriented control of carrier migration, the ZnxCd1−xS solid solution is effectively combined with P-CoV-LDH to synthesize a highly efficient and stable S-scheme heterojunction photocatalyst. The best P-CoV-LDH/ZnxCd1−xS 30% composite has a hydrogen evolution rate of 1244.3 μmol without noble metal additives, which is 6.4 times more than ZnxCd1−xS. Li and co-workers, in article number 2200143, reported g-C3N4 with edge grafting of 4-(1H-imidazol-2-yl) benzoic acid and NiS cocatalysts fabricated via a one-pot chemical condensation of monomers with urea and subsequent photodeposition. The obtained composites exhibit greatly enhanced visible-light photocatalytic performance for H2 evolution, in comparison with the undoped g-C3N4. The synergistic effect of bimetallic sulfide is discussed in article number 2200139, which reports the composite bimetallic sulfide ZnCo2S4 and CdS with excellent photocatalytic hydrogen evolution capability. The synergistic effect of zinc ions and cobalt ions enriches the redox-active sites, which provides favorable conditions for the photocatalytic hydrogen evolution reaction. The synergistic effect of bimetallic ions as the main driving force for the accelerated hydrogen precipitation reaction is analyzed by fluorescence and electrochemical characterization. The results of hydrogen production experiments show that the hydrogen evolution amount of ZnCo2S4/CdS is about 10 times that of single CdS. Article number 2200134 describes carbon nanotubes in situ grown onto g-C3N4 nanosheets via a chemical vapor deposition process, catalyzed by Au nanoparticles pre-deposited on g-C3N4 surface via deposition-precipitation. Systematic characterizations, in particular femtosecond transient absorption spectroscopy and time-resolved photoluminescence, prove that carbon nanotubes can efficiently extract the localized electrons in the tri-s-triazine units of g-C3N4, thereby enhancing charge carrier diffusion and separation. In article number 2200130, a donor–acceptor modified g-C3N4 conjugated copolymer is fabricated via facile thermal copolymerization of 2-aminobenzimidazole (abIM) and urea. The experimental results demonstrate that the abIM units are successfully incorporated into the framework of g-C3N4 and the main chemical structure of g-C3N4 is still preserved. These abIM units can J. Yu, C. Bie Laboratory of Solar Fuel Faculty of Materials Science and Chemistry China University of Geosciences Wuhan 430074, China E-mail: yujiaguo93@cug.edu.cn; biechuanbiao@cug.edu.cn K. Dai Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation College of Physics and Electronic Information Huaibei Normal University Huaibei 235000, China E-mail: daikai940@chnu.edu.cn The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adsu.202200478. With the fast development of the social economy and the improvement of people's living standards, energy and environmental issues are attracting more and more attention. In the future, the great challenge for mankind is to shift energy supply from fossil energy to renewable energy. Solar energy is the most important renewable energy on Earth. However, low energy density and intermittency limit its practical application. Photocatalysis has broad application prospects in solar energy utilization. Photocatalysis can utilize solar energy to decompose water to produce hydrogen, reduce carbon dioxide to synthesize solar fuel, and degrade pollutants to purify the environment. However, the low photocatalytic efficiency limits its practical application. Thus, from the viewpoint of practical utilization, the improvement in methods and new photocatalysts are highly required. A total of 16 papers have been published in this issue, covering H2 production, CO2 reduction, H2O2 synthesis, and pollutant degradation. Among them, there are 10 papers about hydrogen production and 6 papers related to S-scheme heterojunction photocatalysts. We would like to express our sincere thanks to all the authors who submitted their interesting works to this special issue. A summary of all 18 accepted papers is provided as follows. Firstly, in article number 2200394, the authors present different functional ligands or metals incorporated into the parent metal-organic frameworks (MOFs) to enhance the photocatalytic performance of multivariate MOFs. The synthesis methods and unique advantages of multivariate MOFs-based photocatalysts are discussed. The recent advance in three multivariate MOFs for solar-to-chemical energy conversion are summarized according to mixed-metal MOFs, mixed-metal and mixed-ligand MOFs, and mixed-ligand MOFs. Finally, future perspectives and challenges in CO2 conversion and H2 evolution over Multivariate MOFs-based photocatalysts are discussed.

Jiaguo Yu

Papers

Polymeric Photocatalysts Based on Graphitic Carbon Nitride

Editorial Environmental Photocatalysis

Radio-over-fiber systems with delta-sigma-modulation for MMW-based indoor communication

Suspension type combined glass cleaner

Guest Editorial: Solar Energy Utilization