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Graphitic carbon nitride (g-C3N4)-based nanosized heteroarrays: Promising materials for photoelectrochemical water splitting

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Carbon Energy 2020年第2期2卷 223-250页

作者： Liqun Wang Wenping Si Yueyu Tong Feng Hou Daniele Pergolesi Jungang Hou thomas lippert Shi Xue Dou Ji Liang Applied Physics Department College of Physics and Materials ScienceTianjin Normal UniversityTianjinChina Key Laboratory of Advanced Ceramics and Machining Technology Ministry of EducationSchool of Materials Science and EngineeringTianjin UniversityTianjinChina Institute for Superconducting and Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongNorth WollongongNSWAustralia Laboratory for Multiscale Materials Experiments Paul Scherrer InstituteVilligenPSISwitzerland State Key Laboratory of Fine Chemicals DUT-KTH Joint Education and Research Center on Molecular DevicesInstitute of Energy Science and TechnologyDalian University of Technology(DUT)DalianChina

Photoelectrochemical(PEC)water splitting is recognized as a sustainable strategy for hydrogen generation due to its abundant hydrogen source,utilization of inexhaustible solar energy,high-purity product,and environment-friendly *** actualize a practical PEC water splitting,it is paramount to develop efficient,stable,safe,and low-cost photoelectrode ***,graphitic carbon nitride(g-C3N4)has aroused a great interest in the new generation photoelectrode materials because of its unique features,such as suitable band structure for water splitting,a certain range of visible light absorption,nontoxicity,and good *** inherent defects of g-C3N4,however,seriously impair further improvement on PEC performance,including low electronic conductivity,high recombination rate of photogenerated charges,and limited visible light absorption at long wavelength *** of g-C3N4-based nanosized heteroarrays as photoelectrodes has been regarded as a promising strategy to circumvent these inherent limitations and achieve the high-performance PEC water splitting due to the accelerated exciton separation and the reduced combination of photogenerated electrons/***,we summarize in detail the latest progress of g-C3N4-based nanosized heteroarrays in PEC water-splitting ***,the unique advantages of this type of photoelectrodes,including the highly ordered nanoarray architectures and the heterojunctions,are ***,different g-C3N4-based nanosized heteroarrays are comprehensively discussed,in terms of their fabrication methods,PEC capacities,and mechanisms,*** conclude,the key challenges and possible solutions for future development on g-C3N4-based nanosized heteroarray photoelectrodes are discussed.

关键词： graphitic carbon nitride heterojunctions nanoarrays photoelectrochemical water splitting

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Photocatalytic and electrochemical degradation of methylene blue by titanium dioxide

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Chinese Science Bulletin 2014年第17期59卷 1964-1967页

作者： Min Yang Xinling Liu Jikun Chen Fanqi Meng Yuliang Zhang Helmut Brandl thomas lippert Nuofu Chen School of Renewable Energy North China Electric Power University Institute of Evolutionary Biology and Environmental Studies University of ZrichZrichSwitzerland School of Material Science and Engineering Shanghai University General Energy Research Department Paul Scherrer InstituteVilligenSwitzerland School of Chemistry and Environment Beihang University

A photoanode structure for dye-sensitized solar cells has been applied into the photocatalytic/electrochemical cooperative degradation of methylene blue *** low eutectic point of titanium dioxide(TiO2)with a fluorine-doped tin dioxide(FTO)conductive layer results in a high reactivity of TiO2for the photocatalytic process as well as a good electron transfer for the electrochemical *** porous TiO2layer maintains a large surface area for the *** the combinational process,the degradation velocity was improved by*36%,compared to a pure photocatalytic process.

关键词：电化学降解光催化过程二氧化钛亚甲蓝染料敏化太阳能电池 TiO2 电化学过程阳极结构

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Results of Sleeve Gastrectomy in Germany—Data on Nationwide Survey on Quality Assurance in Bariatric Surgery in Germany

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Surgical Science 2012年第4期3卷 169-176页

作者： Christine Stroh Rudolf Weiner thomas Horbach Kaja Ludwig Miriam Dressler Stefanie Wolff Hans lippert Martin Büsing Uwe Schmidt thomas Manger Department of General Abdominal and Pediatric Surgery Municipal Hospital Gera Germany Department of General Abdominal and Vascular Surgery University Hospital Magdeburg Magdeburg Germany Friedrich Alexander University Erlangen-Nürnberg Erlangen Germany Hospital Knappschaft Recklinghausen Recklinghausen Germany Hospital Rostock Südstadt Rostock Germany Hospital Sachsenhausen Frankfurt am Main Frankfurt Main Germany Muncipial Hospitals Dresden Neustadt Dresden Germany StatConsult Magdeburg Magdeburg Germany

Background: Since January 1st of 2005, the situation of bariatric surgery is being analyzed in Germany. The data is registered prospectively in cooperation with the Institute of Quality Assurance in Surgery at the Otto-von-Guericke University Magdeburg. Methods: The data is registered through an online database which includes all information for primary and revision bariatric procedures as well as yearly follow-up. Participation in the quality assurance study is optional. All certificated centers have to participate at the survey. Results: From January 2006 to December 2009, 1478 sleeve gastrectomies (SG) were performed at 45 hospitals. The number of procedures has increased from 126 in 2007 to 933 in 2009. The main complication is leakage of the staple-line. Initial leakage rate was 7% in 2007. Leakage rate dropped down to 2.3% in 2008 and 2.5% in 2009. Mean age of patients was 43.1 years and mean BMI was 52.83 kg/m2. Age and BMI were significantly higher in patients with SG than in all other patients undergoing bariatric surgery. Conclusion: SG is a common and hype bariatric procedure in Germany, but postoperative complication rate is high. Data on the long-term effect of SG on weight loss and amelioration of comorbidities need to be evaluated. More detailed analyzes are necessary to establish the position of SG in the bariatric surgery. Further studies should also include examinations on long-term complications and redo-procedure after SG.

关键词： Bariatric Surgery Sleeve Gastrectomy German Multicenter Trial Leakage Complications

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Results of Sleeve Gastrectomy in Germany—Data on Nationwide Survey on Quality Assurance in Bariatric Surgery in Germany

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Surgical Science（外科学） 2012年第4期

作者： Christine Stroh Rudolf Weiner thomas Horbach Kaja Ludwig Miriam Dressler Stefanie Wolff Hans lippert Martin Büsing Uwe Schmidt thomas Manger

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