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| 1 | Comparative study of MCe_(0.75)Zr_(0.25)O_(y)(M=Cu,Mn,Fe)catalysts for selective reduction of NO by CO:Activity and reaction pathways显示文摘Basic oxygen furnace steelmaking leads to the production of CO-rich off-gas.When CO and NO are combined in off-gas,selective catalytic reduction by CO(CO-SCR)effectively achieves the synergistic removal of both pollutants.In this paper,CuCe_(0.75)Zr_(0.25)O_(y),MnCe_(0.75)Zr_(0.25)O_(y),and FeCe_(0.75)Zr_(0.25)O_(y) catalysts are prepared and evaluated for their CO-SCR activity,and the results show that the reaction system needs to be anaerobic;thus,the CO-SCR reaction can be dominant.The T_(90) values of CuCe_(0.75)Zr_(0.25)O_(y) and FeCe_(0.75)Zr_(0.25)O_(y) are 200℃ and 223℃,respectively.The activities of these two catalysts are higher than that of MnCe_(0.75)Zr_(0.25)O_(y)(T_(90)=375℃).Linear nitrate and bridged bidentate nitrate are the main intermediate species involved in NO conversion on the catalyst surface,and bidentate CO_(3)^(2-)��coordination is the main intermediate species involved in CO conversion on the catalyst surface.CuCe_(0.75)Zr_(0.25)O_(y) has high lattice oxygen mobility and is more likely to react with NO and CO.In the presence of oxygen,most CO is oxidized by O_(2),which increases continuously to 100%,100%,and 98%for CuCe_(0.75)Zr_(0.25)O_(y),FeCe_(0.75)Zr_(0.25)O_(y),and MnCe_(0.75)Zr_(0.25)O_(y),respectively;additionally,CO is oxidized by O_(2),and the CO-SCR reaction cannot be carried out. | Junyao He Running Kang Xiaolin Wei Junqin Huang Feng Bin Kwun Nam Hui Kwan San Hui Dongyin Wu | 2021 | Carbon Resources Conversion2021，4，1： | 2 |
| 2 | Electrochimica Acta 显示文摘 | Zhang Jiawei Cai Yurong Wu JunYao | 2015 | 165:422-4292015，165，： | 1 |
| 3 | Transmission of Carbapenem Resistance Between Human and Animal NDM-Positive Escherichia coli Strains显示文摘Although carbapenem use is prohibited in animals in China,carbapenem-resistant Escherichia coli(CREC),especially New Delhi metallo-β-lactamase(NDM)-producing strains,are widely prevalent in foodproducing animals.At present,the impact of livestock-associated CREC strains on human populations at the national level is unknown.Here,we conduct a retrospective cross-sectional study to investigate the prevalence of CREC from clinical settings across 22 Chinese provinces or municipalities and analyze anthropogenic factors associated with their presence.We also ascertain the blaNDMand blaKPCabundance among pig and chicken farms and present a detailed genomic framework for CREC of animal and human origin.Overall,631/29799(2.1%)clinical Escherichia coli(E.coli)isolates were identified as CREC.Multivariable analysis revealed that being male,an age below 1,an age between 13 and 18,provinces with greater chicken production,and provinces with higher pig production were associated with higher odds of CREC infection.In general,73.8%(n=45/61)of pig farms and 62.2%(n=28/45)of chicken farms had a blaNDMabundance of 1×10^(-5)to 1×10^(-3)and 1×10^(-3)to 1×10^(-2),respectively.Among all the Chinese NDM-positive E.coli(n=463)available at the National Center for Biotechnology Information(NCBI),the genomic analysis revealed that blaNDM-5and Inc X3 were the predominant carbapenemase gene-plasmid combination,while a highly homogeneous relationship between NDM-positive isolates from humans and animals was demonstrated at the plasmid and core genome levels.All the findings suggest frequent CREC transmission between humans and animals,indicating that further discussions on the use of antibiotics in animals and humans are needed,both in China and across the globe. | Yingbo Shen Fupin Hu Yongqiang Wang Dandan Yin Lu Yang Yiqiang Chen Chunyan Xu Jiyun Li Junyao Jiang Xueyang Wang Yulin Fu Dongyan Shao Dejun Liu Tengfei Ma Chang Cai Zhangqi Shen Shaolin Wang Juan Li Rong Zhang Yuebin Ke Congming Wu Jianzhong Shen Timothy R.Walsh Yang Wang | 2022 | Engineering2022，8，8： | 0 |
| 4 | Polymer-based TiO_(2)nanocomposite membrane:synthesis and organic pollutant removal显示文摘Titanium dioxide(TiO_(2))nanoparticles are efficient photocatalysis for treating organic pollutants in water.Immobilizing TiO_(2)nanoparticles not only enables the reuse of nanoparticles but also prevents the harmful impact of releasing nanoparticles into the aquatic environment.In this study,a porous composite microfiber membrane based on polyacrylonitrile(PAN)with TiO_(2)nanoparticles has been synthesized by electrospinning technique.The new membrane system has exhibited excellent adsorptive-photocatalytic property to degrade Methylene blue(MB).Using the nonlinear form of the pseudo-first-order,pseudo-second-order,Elovich,and Intra-particle diffusion models,the adsorption mechanism was analyzed.Coupling with adsorption and photocatalysis,the efficiency of this membrane system was illustrated via the multistage linear form of the pseudo-first-order kinetic;and the electrical energy per order(EEO)confirmed the lowest energy requirements to transfer selected pollutants.Combining the results of SEM,BET,FTIR,XRD and TGA,it revealed the relationship of microstructure,composition,and MB decomposition performance.The finding presents new knowledge for material design and evaluation of polymers/oxides membrane systems for remediating organic pollutants in water. | Junyao Wu Shan Yi Yixuan Wang Jun Yao Wei Gaoa | 2021 | International Journal of Smart and Nano Materials2021，12，2： | 0 |
| 5 | Genomic Shift in Population Dynamics of mcr-1-positive Escherichia coli in Human Carriage显示文摘Emergence of the colistin resistance gene,mcr-1,has attracted worldwide attention.Despite the prevalence of mcr-1-positive Escherichia coli(MCRPEC)strains in human carriage showing a significant decrease between 2016 and 2019,genetic differences in MCRPEC strains remain largely unknown.We therefore conducted a comparative genomic study on MCRPEC strains from fecal samples of healthy human subjects in 2016 and 2019.We identified three major differences in MCRPEC strains between these two time points.First,the insertion sequence ISApl1 was often deleted and the percentage of mcr-1-carrying IncI2 plasmids was increased in MCRPEC strains in 2019.Second,the antibiotic resistance genes(ARGs),aac(3)-IVa and blaCTX-M-1,emerged and coexisted with mcr-1 in 2019.Third,MCRPEC strains in 2019 contained more virulence genes,resulting in an increased proportion of extraintestinal pathogenic E.coli(ExPEC)strains(36.1%)in MCRPEC strains in 2019 compared to that in 2016(10.5%),implying that these strains could occupy intestinal ecological niches by competing with other commensal bacteria.Our results suggest that despite the significant reduction in the prevalence of MCRPEC strains in humans from 2016 to 2019,MCRPEC exhibits increased resistance to other clinically important ARGs and contains more virulence genes,which may pose a potential public health threat. | Yingbo Shen Rong Zhang Dongyan Shao Lu Yang Jiayue Lu Congcong Liu Xueyang Wang Junyao Jiang Boxuan Wang Congming Wu Julian Parkhill Yang Wang Timothy R.Walsh George F.Gao Zhangqi Shen | 2022 | Genomics, Proteomics & Bioinformatics2022，20，6： | 0 |
| 6 | A facile solution approach for fabrication of small-sized MoSe_(2) with few layers as an efficient hydrogen evolution electrocatalyst显示文摘Unlike fossil fuels,hydrogen is a renewable and clean energy source.It is available in a large amount and spreads throughout the world.When reacting with oxygen,hydrogen releases energy to produce water as the only product.Hence,hydrogen is a promising alternative to fossil fuels[1].Today,most of hydrogen is produced via the steam methane reforming process,in which hightemperature steam is used to produce hydrogen from a methane source.However,methane is non-renewable,and carbon dioxide is generated in the reforming process. | Weizhi WANG Wei LI Xinxin WANG Junyao WU Xuewei GU Mengjuan QI Enhong SHENG Konglin WU | 2021 | Frontiers of Materials Science2021，15，3： | 0 |
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