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用于环境催化的MoS<sub>2sub>/ZIF-8复合材料——太阳能驱动的抗生素降解工程 Article

陈文倩, 李琳悦, 李林, 裘文慧, 唐量, 徐玲, 许科军, 吴明红

《工程(英文)》 2019年 第5卷 第4期   页码 755-767 doi: 10.1016/j.eng.2019.02.003

摘要: 然而,目前使用的TiO<sub>2sub>基催化剂仅吸收紫外(UV)区域中的小部分太阳光谱,导致效率降低。在本文中,我们提供了一种MoS<sub>2sub>/ZIF-8复合光催化剂,它可以使环丙沙星(CIP)和盐酸四环素(TC)的光催化降解率分别达到1T/2H-MoS<sub>2sub>的1.21倍和MoS<sub>2sub>/ZIF-8纳米复合材料的产氢率是MoS<sub>2sub>的1.79倍。这项工作通过优化表面纳米异质结结构的构造,为探索原始和高效的1T/2H-MoS<sub>2sub>/MOF基光催化剂提供了新的方向。我们发现复合光催化剂经久耐用,其催化性能在稳定性测试下得以保持。因此,1T/2H-MoS<sub>2sub>/MOF基光催化剂具有良好的抗生素降解工程应用前景。

关键词: 1T/2H-MoS<sub>2sub>     ZIF-8     抗生素降解     光催化    

Fabrication, modification and environmental applications of TiO

ROHANI, T. ISIMJAN, A. MOHAMED, H. KAZEMIAN, M. SALEM, T. WANG

《化学科学与工程前沿(英文)》 2012年 第6卷 第1期   页码 112-122 doi: 10.1007/s11705-011-1144-6

摘要: Among the semiconductors, titanium dioxide has been identified as an effective photocatalyst due to its abundance, low cost, stability, and superior electronic energy band structure. Highly ordered nanotube arrays of titania were produced by anodization and mild sonication. The band gap energy of the titania nanotube arrays was reduced to 2.6 eV by co-doping with Fe, C, N atoms using an electrolyte solution containing K Fe(CN) . The photoconversion of phenol in a batch photoreactor increased to more than 18% based on the initial concentration of phenol by using a composite nanomaterial consisting of titania nanotube arrays and Pt/ZIF-8 nanoparticles. A layer-by-layer assembly technique for the deposition of titania nanoparticles was developed to fabricate air filters for the degradation of trace amounts of toluene in the air and preparation of superhyrophobic surfaces for oil-water separation and anti-corrosion surfaces.

关键词: TiO2 nanotube arrays and nanoparticles     anodization     bandgap modification     layer-by-layer deposition     oil-water separation    

固体氧化物电解池共电解H<sub>2sub>O/CO<sub>2sub>研究进展

范慧,宋世栋,韩敏芳

《中国工程科学》 2013年 第15卷 第2期   页码 107-112

摘要: 本文介绍了固体氧化物电解池的结构特点及其用于H2O/CO2的共电解制备H2和CO的工作原理,综述了固体氧化物电解池的组成形式,以及单片电解池和电解池堆用于H2O/CO2共电解反应的国内外研究进展,并阐述了提高固体氧化物电解池共电解效率所亟需解决的问题

关键词: 固体氧化物电解池     H<sub>2sub>O/CO<sub>2sub>共电解     合成气     电解效率     水电解    

Design, synthesis, and antiviral properties of 2-aryl-1H-benzimidazole-4-carboxamide derivatives

Xianjin LUO, Zhonglü ZHANG, Yutian YANG, Fei XUE, Naiyun XIU, Yuanbin SHE

《化学科学与工程前沿(英文)》 2009年 第3卷 第3期   页码 305-309 doi: 10.1007/s11705-009-0021-z

摘要: A series of new benzimidazole derivatives were designed and synthesized. Their chemical structures were testified by H NMR, infrared spectroscopy (IR), mass spectrography (MS), and elemental analysis. Their potent antiviral properties indicated the prospect of new drugs. Compound , , , , , , and were identified as novel antivirus with much better selective activity and inhibitory activity than the comparable ribavirin against Coxsackie virus B in VERO cells.

关键词: benzimidazole     coxsackie virus B3     antiviral properties    

Nickel(II) ion-intercalated MXene membranes for enhanced H<sub>2sub>/CO<sub>2sub> separation

Yiyi Fan, Jinyong Li, Saidi Wang, Xiuxia Meng, Yun Jin, Naitao Yang, Bo Meng, Jiaquan Li, Shaomin Liu

《化学科学与工程前沿(英文)》 2021年 第15卷 第4期   页码 882-891 doi: 10.1007/s11705-020-1990-1

摘要: Hydrogen fuel has been embraced as a potential long-term solution to the growing demand for clean energy. A membrane-assisted separation is promising in producing high-purity H . Molecular sieving membranes (MSMs) are endowed with high gas selectivity and permeability because their well-defined micropores can facilitate molecular exclusion, diffusion, and adsorption. In this work, MXene nanosheets intercalated with Ni were assembled to form an MSM supported on Al O hollow fiber via a vacuum-assisted filtration and drying process. The prepared membranes showed excellent H /CO mixture separation performance at room temperature. Separation factor reached 615 with a hydrogen permeance of 8.35 × 10 mol·m ·s ·Pa . Compared with the original Ti C T /Al O hollow fiber membranes, the permeation of hydrogen through the Ni -Ti C T /Al O membrane was considerably increased, stemming from the strong interaction between the negatively charged MXene nanosheets and Ni . The interlayer spacing of MSMs was tuned by Ni . During 200-hour testing, the resultant membrane maintained an excellent gas separation without any substantial performance decline. Our results indicate that the Ni tailored Ti C T /Al O hollow fiber membranes can inspire promising industrial applications.

关键词: MXene     H2/CO2 separation     nickel ions     hollow fiber    

growth of a-few-layered MoS on CdS nanorod for high efficient photocatalytic H production

《能源前沿(英文)》 2021年 第15卷 第3期   页码 752-759 doi: 10.1007/s11708-021-0779-3

摘要: An ultrathin MoS2 was grown on CdS nanorod by a solid state method using sulfur powder as sulfur source for photocatalytic H2 production. The characterization result reveals that the ultrathin MoS2 nanosheets loaded on CdS has a good contact state. The photoelectrochemical result shows that MoS2 not only are beneficial for charge separation, but also works as active sites, thus enhancing photocatalytic activity. Compared with pure CdS, the photocatalytic activity of MoS2 loaded CdS was significantly improved. The hydrogen evolution rate on m(MoS2): m(CdS) = 1: 50 (m is mass) reaches 542 μmol/h, which is 6 times of that on pure CdS (92 μmol/h). This work provides a new design for photocatalysts with high photocatalytic activities and provides a deeper understanding of the effect of MoS2 on enhancing photocatalytic activity.

关键词: photocatalytic H2 production     CdS     MoS2 cocatalyst     charge separation    

Histone variants: critical determinants in tumour heterogeneity

Tao Wang, Florent Chuffart, Ekaterina Bourova-Flin, Jin Wang, Jianqing Mi, Sophie Rousseaux, Saadi Khochbin

《医学前沿(英文)》 2019年 第13卷 第3期   页码 289-297 doi: 10.1007/s11684-018-0667-3

摘要: Malignant cell transformation could be considered as a series of cell reprogramming events driven by oncogenic transcription factors and upstream signalling pathways. Chromatin plasticity and dynamics are critical determinants in the control of cell reprograming. An increase in chromatin dynamics could therefore constitute an essential step in driving oncogenesis and in generating tumour cell heterogeneity, which is indispensable for the selection of aggressive properties, including the ability of cells to disseminate and acquire resistance to treatments. Histone supply and dosage, as well as histone variants, are the best-known regulators of chromatin dynamics. By facilitating cell reprogramming, histone under-dosage and histone variants should also be crucial in cell transformation and tumour metastasis. Here we summarize and discuss our knowledge of the role of histone supply and histone variants in chromatin dynamics and their ability to enhance oncogenic cell reprogramming and tumour heterogeneity.

关键词: cancer-testis     TH2B     TH2A     H1T     H1.0     H1F0     linker histones    

NO<sub>xsub> and H<sub>2sub>S formation in the reductive zone of air-staged combustion of

Jinzhi CAI, Dan LI, Denggao CHEN, Zhenshan LI

《能源前沿(英文)》 2021年 第15卷 第1期   页码 4-13 doi: 10.1007/s11708-020-0804-y

摘要: Low NO combustion of blended coals is widely used in coal-fired boilers in China to control NO emission; thus, it is necessary to understand the formation mechanism of NO and H S during the combustion of blended coals. This paper focused on the investigation of reductive gases in the formation of NO and H S in the reductive zone of blended coals during combustion. Experiments with Zhundong (ZD) and Commercial (GE) coal and their blends with different mixing ratios were conducted in a drop tube furnace at 1200°C–1400°C with an excessive air ratio of 0.6–1.2. The coal conversion and formation characteristics of CO, H S, and NO in the fuel-rich zone were carefully studied under different experimental conditions for different blend ratios. Blending ZD into GE was found to increase not only the coal conversion but also the concentrations of CO and H S as NO reduction accelerated. Both the CO and H S concentrations inblended coal combustion increase with an increase in the combustion temperature and a decrease in the excessive air ratio. Based on accumulated experimental data, one interesting finding was that NO and H S from blended coal combustion were almost directly dependent on the CO concentration, and the CO concentration of the blended coal combustion depended on the single char gasification conversion.Thus, CO, NO , and H S formation characteristics from blended coal combustion can be well predicted by single char gasification kinetics.

关键词: blended coal combustion     NOx formation     H2S formation     air staged combustion    

grown TiN/N-TiO composite for enhanced photocatalytic H evolution activity

《能源前沿(英文)》 2021年 第15卷 第3期   页码 721-731 doi: 10.1007/s11708-021-0766-8

摘要: Titanium nitride (TiN) decorated N-doped titania (N-TiO2) composite (TiN/N-TiO2) is fabricated via an in situ nitridation using a hydrothermally synthesized TiO2 and melamine (MA) as raw materials. After the optimization of the reaction condition, the resultant TiN/N-TiO2 composite delivers a hydrogen evolution activity of up to 703 μmol/h under the full spectrum irradiation of Xe-lamp, which is approximately 2.6 and 32.0 times more than that of TiO2 and TiN alone, respectively. To explore the underlying photocatalytic mechanism, the crystal phase, morphology, light absorption, energy band structure, element composition, and electrochemical behavior of the composite material are characterized and analyzed. The results indicate that the superior activity is mainly caused by the in situ formation of plasmonic TiN and N-TiO2 with intimate interface contact, which not only extends the spectral response range, but also accelerates the transfer and separation of the photoexcited hot charge carrier of TiN. The present study provides a fascinating approach to in situ forming nonmetallic plasmonic material/N-doped TiO2 composite photocatalysts for high-efficiency water splitting.

关键词: photocatalytic H2 evolution     TiN/N-TiO2 composite     plasmonic effect     in-situ nitridation    

Impacts of CO2 and H2S on the risk of hydrate formation during pipeline transport of natural gas

Solomon A. Aromada, Bjørn Kvamme

《化学科学与工程前沿(英文)》 2019年 第13卷 第3期   页码 616-627 doi: 10.1007/s11705-019-1795-2

摘要: Evaluation of maximum content of water in natural gas before water condenses out at a given temperature and pressure is the initial step in hydrate risk analysis during pipeline transport of natural gas. The impacts of CO and H S in natural gas on the maximum mole-fractions of water that can be tolerated during pipeline transport without the risk of hydrate nucleation has been studied using our novel thermodynamic scheme. Troll gas from the North Sea is used as a reference case, it contains very negligible amount of CO and no H S. Varying mole-fractions of CO and H S were introduced into the Troll gas, and the effects these inorganic impurities on the water tolerance of the system were evaluated. It is observed that CO does not cause any distinguishable impact on water tolerance of the system, but H S does. Water tolerance decreases with increase in concentration of H S. The impact of ethane on the system was also investigated. The maximum mole-fraction of water permitted in the gas to ensure prevention of hydrate formation also decreases with increase in the concentration of C H like H S. H S has the most impact, it tolerates the least amount of water among the components studied.

关键词: hydrate     hydrogen Sulphide     CO2     dew point     pipeline    

Endemicity of H9N2 and H5N1 avian influenza viruses in poultry in China poses a serious threat to poultry

Jiao HU,Xiufan LIU

《农业科学与工程前沿(英文)》 2016年 第3卷 第1期   页码 11-24 doi: 10.15302/J-FASE-2016092

摘要: The H9N2 and H5N1 avian influenza viruses (AIVs) have been circulating in poultry in China and become endemic since 1998 and 2004, respectively. Currently, they are prevalent in poultry throughout China. This endemicity makes them actively involved in the emergence of the novel lineages of other subtypes of influenza viruses, such as the well-known viruses of the highly pathogenic avian influenza (HPAI) H5N2 and the 2013 novel H7N7, H7N9 and H10N8 subtypes, thereby threatening both the poultry industry and public health. Here, we will review briefly the prevalence and evolution, pathogenicity, transmission, and disease control of these two subtypes and also discuss the possibility of emergence of potentially virulent and highly transmissible AIVs to humans.

关键词: avian influenza virus     H9N2     H5N1     novel viruses     public health    

H<sub>2sub> 对Pt-Ba-Ce /γ-Al<sub>2sub>O<sub>3sub> 催化剂NO<sub>xsub> 存储和还原机理的影响研究 Article

王攀, 裔静, 孙川, 罗鹏, 雷利利

《工程(英文)》 2019年 第5卷 第3期   页码 568-575 doi: 10.1016/j.eng.2019.02.005

摘要:

本研究采用浸渍法制备了Pt-Ba-Ce/γ-Al<sub>2sub>O<sub>3sub>催化剂,利用实验评价了H<sub>2sub> 对NSR(NO<sub>xsub> storage and reduction)催化剂存储和还原机理的影响,并采用综合表征技术研究了Pt-Ba-Ce /γ-Al<sub>2sub>O<sub>3sub, 在350 ℃ 达到最大值315.3 μmol·g1。在NO<sub>xsub> 吸附和脱附循环实验中,随着H<sub>2sub>暴露时间(30 s、45 s 和60 s)延长,NO<sub>xsub> 的存储效率和转化率增加适当增加H<sub>2sub>量加速了硝酸盐或亚硝酸盐的分解,有利于NO<sub>xsub> 存储-还原,并促进了下一循环NSR吸附位点的再生。

关键词: Pt–Ba–Ce/γ-Al<sub>2sub>O<sub>3sub> 催化剂,物理化学性质,NO<sub>xsub>存储和还原,NO<sub>xsub> 排放,H<sub>2sub> 还原剂    

Interfacial charge transfer and photocatalytic activity in a reverse designed BiO/TiO core-shell

《能源前沿(英文)》 2021年 第15卷 第3期   页码 732-743 doi: 10.1007/s11708-021-0772-x

摘要: In this study, the electronic and photocatalytic properties of core-shell heterojunctions photocatalysts with reversible configuration of TiO2 and Bi2O3 layers were studied. The core-shell nanostructure, obtained by efficient control of the sol-gel polymerization and impregnation method of variable precursors of semiconductors, makes it possible to study selectively the role of the interfacial charge transfer in each configuration. The morphological, optical, and chemical composition of the core-shell nanostructures were characterized by high-resolution transmission electron microscopy, UV-visible spectroscopy and X-ray photoelectron spectroscopy. The results show the formation of homogenous TiO2 anatase and Bi2O3 layers with a thickness of around 10 and 8 nm, respectively. The interfacial charge carrier dynamic was tracked using time resolved microwave conductivity and transition photocurrent density. The charge transfer, their density, and lifetime were found to rely on the layout layers in the core-shell nanostructure. In optimal core-shell design, Bi2O3 collects holes from TiO2, leaving electrons free to react and increase by 5 times the photocatalytic efficiency toward H2 generation. This study provides new insight into the importance of the design and elaboration of optimal heterojunction based on the photocatalyst system to improve the photocatalytic activity.

关键词: photocatalysis     core-shell     heterojunction     H2     TiO2     Bi2O3    

Photoelectrocatalytic generation of H and S from toxic HS by using a novel BiOI/WO nanoflake array photoanode

《能源前沿(英文)》 2021年 第15卷 第3期   页码 744-751 doi: 10.1007/s11708-021-0775-7

摘要: In this paper, a photoelectrocatalytic (PEC) recovery of toxic H2S into H2 and S system was proposed using a novel bismuth oxyiodide (BiOI)/ tungsten trioxide (WO3) nano-flake arrays (NFA) photoanode. The BiOI/WO3 NFA with a vertically aligned nanostructure were uniformly prepared on the conductive substrate via transformation of tungstate following an impregnating hydroxylation of BiI3. Compared to pure WO3 NFA, the BiOI/WO3 NFA promotes a significant increase of photocurrent by 200%. Owing to the excellent stability and photoactivity of the BiOI/WO3 NFA photoanode and I/I 3 catalytic system, the PEC system toward splitting of H2S totally converted S2– into S without any polysulfide ( Sx n) under solar-light irradiation. Moreover, H2 was simultaneously generated at a rate of about 0.867 mL/(h·cm). The proposed PEC H2S splitting system provides an efficient and sustainable route to recover H2 and S.

关键词: bismuth oxyiodide (BiOI)/ tungsten trioxide (WO3) nano-flake arrays (NFA)     photoelectrocatalytic (PEC)     H2S splitting     H2     S    

催化氧化净化黄磷尾气中的磷和硫

宁平,Hans-JörgBart,王学谦,马丽萍,陈梁

《中国工程科学》 2005年 第7卷 第6期   页码 27-35

摘要: 研究了用普通活性炭和自制催化剂KU2催化氧化净化黄磷尾气的方法;讨论了固定床系统中常压下、温度20~140℃,催化剂上磷和硫化氢的吸附特征。KU2和活性炭都能通过催化氧化过程有效脱除黄磷尾气中的P<sub>4sub>,PH<sub>3sub>和H<sub>2sub>S杂质,随着反应温度和氧含量增加可显著提高净化效果,在最优条件下

关键词: 催化剂     催化氧化     H<sub>2sub>S     P<sub>4sub>     PH<sub>3sub>     固定床    

标题 作者 时间 类型 操作

用于环境催化的MoS<sub>2sub>/ZIF-8复合材料——太阳能驱动的抗生素降解工程

陈文倩, 李琳悦, 李林, 裘文慧, 唐量, 徐玲, 许科军, 吴明红

期刊论文

Fabrication, modification and environmental applications of TiO

ROHANI, T. ISIMJAN, A. MOHAMED, H. KAZEMIAN, M. SALEM, T. WANG

期刊论文

固体氧化物电解池共电解H<sub>2sub>O/CO<sub>2sub>研究进展

范慧,宋世栋,韩敏芳

期刊论文

Design, synthesis, and antiviral properties of 2-aryl-1H-benzimidazole-4-carboxamide derivatives

Xianjin LUO, Zhonglü ZHANG, Yutian YANG, Fei XUE, Naiyun XIU, Yuanbin SHE

期刊论文

Nickel(II) ion-intercalated MXene membranes for enhanced H<sub>2sub>/CO<sub>2sub> separation

Yiyi Fan, Jinyong Li, Saidi Wang, Xiuxia Meng, Yun Jin, Naitao Yang, Bo Meng, Jiaquan Li, Shaomin Liu

期刊论文

growth of a-few-layered MoS on CdS nanorod for high efficient photocatalytic H production

期刊论文

Histone variants: critical determinants in tumour heterogeneity

Tao Wang, Florent Chuffart, Ekaterina Bourova-Flin, Jin Wang, Jianqing Mi, Sophie Rousseaux, Saadi Khochbin

期刊论文

NO<sub>xsub> and H<sub>2sub>S formation in the reductive zone of air-staged combustion of

Jinzhi CAI, Dan LI, Denggao CHEN, Zhenshan LI

期刊论文

grown TiN/N-TiO composite for enhanced photocatalytic H evolution activity

期刊论文

Impacts of CO2 and H2S on the risk of hydrate formation during pipeline transport of natural gas

Solomon A. Aromada, Bjørn Kvamme

期刊论文

Endemicity of H9N2 and H5N1 avian influenza viruses in poultry in China poses a serious threat to poultry

Jiao HU,Xiufan LIU

期刊论文

H<sub>2sub> 对Pt-Ba-Ce /γ-Al<sub>2sub>O<sub>3sub> 催化剂NO<sub>xsub> 存储和还原机理的影响研究

王攀, 裔静, 孙川, 罗鹏, 雷利利

期刊论文

Interfacial charge transfer and photocatalytic activity in a reverse designed BiO/TiO core-shell

期刊论文

Photoelectrocatalytic generation of H and S from toxic HS by using a novel BiOI/WO nanoflake array photoanode

期刊论文

催化氧化净化黄磷尾气中的磷和硫

宁平,Hans-JörgBart,王学谦,马丽萍,陈梁

期刊论文