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| 1 | Controlling reduction degree of graphene oxide membranes for improved water permeance显示文摘Tailoring the pore structure and surface chemistry of graphene-based laminates is essentially important for their applications as separation membranes.Usually,pure graphene oxide(GO) and completely reduced GO(r GO) membranes suffer from low water permeance because of the lack of pristine graphitic sp^2 domains and very small interlayer spacing,respectively.In this work,we studied the influence of reduction degree on the structure and separation performance of r GO membranes.It was found that weak reduction retains the good dispersion and hydrophilicity of GO nanosheets.More importantly,it increases the number of pristine graphitic sp^2 domains in rGO nanosheets while keeping the large interlayer spacing of the GO membranes in most regions at the same time.The resultant membranes show a high water permeance of 56.3 L m^(-2)h^(-1)bar^(-1),which is about 4 times and over 10~4 times larger than those of the GO and completely reduced r GO membranes,respectively,and high rejection over 95% for various dyes.Furthermore,they show better structure stability and more superior separation performance than GO membranes in acid and alkali environments. | Qing Zhang Xitang Qian Khalid Hussain Thebo Hui-Ming Cheng Wencai Ren | 2018 | Science Bulletin2018,63,12: | 7 |
| 2 | Use of Electrical Resistance to Detect the Formation and Decomposition of Methane Hydrate显示文摘电的抵抗(R) 的变化同时在 CH4 水合物形成和分解的过程试验性地被学习,用象辅助检测方法的温度和压力。实验结果证明 R 与水合物形成增加并且与水合物 decompositon 减少。R 比温度或压力对水合物形成和 decompositon 更敏感,它显示 R 的察觉将是为检测天然气的一个有效工具水合物(NGH ) 份量上。 | Xitang Zhou Shuanshi Fan Deqing Liang Donglei Wang Ningsheng Huang | 2007 | Journal of Natural Gas Chemistry2007,16,4: | 6 |
| 3 | Effects of Sm_(2)O_(3) addition on sintering behavior of pre-synthesized magnesia-rich magnesium aluminate spinel显示文摘The effects of Sm_(2) O_(3) as an additive on the densification of a pre-synthesized magnesia-rich spinel were investigated.The sintering behavior of the material was characterized by analyzing its dilatometric characteristics,linear shrinkage,bulk density,apparent porosity,phase structure,and micro structure.Moreover,the cold modulus of rupture(CMOR) and microhardness of the spinel were measured.The results show that samarium oxide reacts with the spinel to form SmAlO_(3)(a rare-earth aluminate) to improve the sintering performance and mechanical properties of the spinel. The formation of magnesite phases decreases the rupture strength of the spinel.However,this MgO phase is inlaid in spinel grains boundary,has a pinning effect which can improve the sinterability of the spinel. | Zhenghuang Quan Zhoufu Wang Xitang Wang Hao Liu Yan Ma | 2021 | Journal of Rare Earths2021,39,11: | 3 |
| 4 | SiAlON Bonded Corundum or SiC Composites Synthesized in Different Atmospheres显示文摘Using corundum powder,SiC powder,Si3N4 powder,α-Al2O3 micropowder and metal Al powder as starting materials,PVA as binder,after ball milling,mixing,aging,moulding and drying,SiAlON bonded corundum or SiC composites were synthesized at 1 600 ℃ for 6 h in air,graphite embedded condition and(graphite+SiC)embedded condition,respectively.Effects of corundum or SiC powder additions(the mass percent was 7.5%-90%)and sintering atmosphere on forming amount and appearance of SiAlON phase,phase composition,microstructure and properties of the composites were studied.The results show that:(1)with corundum powder addition increasing,density and sintering property of SiAlON bonded corundum composites fired in three different conditions all improve,but the sintering property of the specimens fired in oxidation atmosphere is better than that in reduction atmosphere;(2)the main phases of SiAlON bonded corundum composites fired in two reduction atmospheres are corundum,SiAlON and SiC.The specimens fired in oxidation atmosphere have lamination phenomenon,the main phases of non-oxidation layer are SiAlON,corundum and a little mullite;(3)column-like or fiber-like SiAlON forms in SiAlON bonded corundum composites fired in two different atmospheres.Column-like SiAlON forms in oxidation atmosphere grows better than in reduction atmosphere;(4)with SiC powder addition increasing,density and sintering property of SiAlON bonded SiC composites fired in two reduction atmospheres both reduce.The specimens fired in oxidation atmosphere are oxidized and thicker glaze layer forms. | TAN Qinghua WANG Xitang | 2010 | China's Refractories2010,19,1: | 2 |
| 5 | Structure and Properties of CaO-MgO-SiO_2 Inorganic Glass Fiber with Additives (Al_2O_3,Y_2O_3)显示文摘Structure, crystallization and dissolution properties of CaO-MgO-SiO2 inorganic glass fiber in the presence of additives (Al2O3, Y2O3) were investigated by DTA, XRD, FTIR and ICP-AES techniques. The results show that with the addition of Al2O3 and Y2O3, the glass network structure is strengthened and the precipitation of crystals is inhibited for heat-treated fibers. Compared with Y2O3 doped fibers, Al2O3 presents more significant effects on the enhancement of silica network and the inhibition of crystallization in fibers. As for dissolution properties in physiological fluids, though the weight losses, changes of pH values and leached ions concentration lower slightly with the addition of Al2O3 and Y2O3 for the intensified network structure, and fibers still present high dissolution rates. | 刘浩 WANG Xitang ZHANG Baoguo WANG Zhoufu YANG Yuhan | 2012 | Journal of Wuhan University of Technology(Materials Science)2012,27,1: | 2 |
| 6 | Reduced graphene oxide/metal oxide nanoparticles composite membranes for highly efficient molecular separation显示文摘Graphene oxide(GO) membranes play an important role in various nanofiltration applications including desalination, water purification, gas separation, and pervaporation. However, it is still very challenging to achieve both high separation efficiency and good water permeance at the same time. Here, we synthesized two kinds of GO-based composite membranes i.e. reduced GO(rGO)@MoO_2 and rGO@WO_3 by in-situ growth of metal nanoparticles on the surface of GO sheets. They show a high separation efficiency of ~100% for various organic dyes such as rhodamine B, methylene blue and evans blue, along with a water permeance over 125 Lm^(-2) h^(-1) bar^(-1). The high water permeance and rejection efficiency open up the possibility for the real applications of our GO composite membranes in water purification and wastewater treatment. Furthermore, this composite strategy can be readily extended to the fabrication of other ultrathin molecular sieving membranes for a wide range of molecular separation applications. | Khalid Hussain Thebo Xitang Qian Qinwei Wei Qing Zhang Hui-Ming Cheng Wencai Ren | 2018 | Journal of Materials Science & Technology2018,34,9: | 2 |
| 7 | Preventing welding hot cracking by welding with an intensive trailing cooler显示文摘 | Tian Xitang Shi Qingyu | 2000 | Journal of Materials Processing Technology2000,97,2: | 1 |
| 8 | Development of a sensitive micro-magnetic chemiluminescence enzyme immunoassay for the determination of carcinoembryonic antigen显示文摘 | Wijitar Dungchai Weena Siangproh Jin-Ming Lin Orawon Chailapakul Si Lin Xitang Ying | 2007 | Analytical and Bioanalytical Chemistry2007,,6: | 1 |
| 9 | Bacillus velezensis JK-XZ8 prevents and controls crown gall disease on Prunus subhirtella by colonizing and inducing resistance显示文摘Crown gall of Prunus subhirtella Miq., flowering cherry, is a soil-borne bacterial disease caused by Agrobacterium tumefaciens Smith & Townsend and has caused serious damage to the species in recent years in China. In this study, the colonization of sapling roots, the biocontrol efficacy, the expression of defense-related genes and the enzyme activity in roots of P. subhirtella inoculated with the Bacillus velezensis JK-XZ8 against A. tumefaciens were determined under greenhouse conditions. The results showed that the JK-XZ8 strain colonized in the rhizosphere and root surfaces of the saplings. Sole application of the strain increased activities of polyphenol oxidase (PPO) and phenylalanine ammonia lyase (PAL) without affecting superoxide dismutase (SOD). SOD and PPO activities increased in the prevention group, and the activity of PAL increased in both the prevention and cure groups. The expression of the defense-related genes PAL and PR-1 of salicylic acid pathway in roots increased in both the prevention and cure groups. Simultaneously on day 3, the expression of both COI and MYC2 genes of the jasmonic acid pathway significantly increased in the two groups. The incidence of crown gall in the prevention and the cure groups were 48.1% and 66.7%, respectively, significantly lower compared to the pathogens alone (87.5%). This study showed that the application of the JK-XZ8 strain reduced the incidence of crown gall in P. subhirtella saplings in the two groups, and the prevention group had better control efficacy. In addition, the JK-XZ8 strain protects against crown gall by developing induced systemic resistance and systemic acquired resistance in the roots of the cherry saplings. | Xitang Zhang Weiliang Kong Xiaoqin Wu Jianren Ye | 2022 | Journal of Forestry Research2022,33,3: | 1 |
| 10 | Replace- ment of Methane from Quartz Sand-bearing Hydrate with Carbon Dioxide-in-water Emulsion 显示文摘 | ZHOU Xitang FAN Shuanshi LIANG Deqing | 2008 | Energy Fuels2008,22,3: | 1 |
| 11 | Important Concepts in Information Security Evaluation显示文摘 | Li Shoupeng Wu Xitang | 2003 | Computer Security2003,,11: | 1 |
| 12 | hfllu- ence of nano-silica on properties and microstructure of co- rundum castables 显示文摘 | Wang Zhoufu Zhang Baoguo Wang Xitang | 2005 | Journal of Wuhan University of Science and Technology (Natural Science Edition )2005,28,33: | 1 |
| 13 | Solution behavior of CaO-MgO-SiO2 system bio-soluble re-fractory ceramic fibers显示文摘 | Wang Xitang Luo Chenze Zhang Baoguo | 2007 | Key Engineering Materi- als2007,,: | 1 |
| 14 | Microstructural regulation and properties enhancement of MgO-CaO ceramics by doping Y_(2)O_(3)显示文摘MgO-CaO ceramics with enhanced microhardness and hydration resistance were successfully prepared by doping Y_(2)O_(3) in this work.The effects of introducing Y_(2)O_(3) on the microstructure and properties of MgO-CaO ceramics were investigated.The microstructural regulation effects of Y_(2)O_(3) additive on MgO,CaO,and MgO-CaO ceramics were analyzed comparatively.The results show that Y_(2)O_(3) dissolves into the CaO lattice to form solid solution in CaO ceramics,and no obvious intergranular phase forms.While the Y_(2)O_(3) additive leads to the micro structural reconstruction in MgO and MgO-CaO ceramics.By adding Y_(2)O_(3),SiO_(2) impurity from magnesium source reacts with CaO to form the silicate phases containing Y^(3+)ions in MgO-CaO ceramics.The increase in the MgO/CaO interface and the microstructural reconstruction synergistically improves the microhardness and hydration resistance of MgO-CaO ceramics markedly. | Nian Yi Yan Ma Zhoufu Wang Hao Liu Xitang Wang Yunjie Dong Zhongfeng Xia Yuxuan Zhu Chengji Deng | 2023 | Journal of Rare Earths2023,41,11: | 1 |
| 15 | Mirco-plate chemiluminesecence enzyme immunoassay for aflatoxin B- in agricultural products显示文摘 | FANG Luqiu CHEN Hui YING Xitang | 2011 | Talant2011,84,1: | 1 |
| 16 | Welding Distortion Control of Thin Al Alloy Plate by Static Thermal Tensioning显示文摘The mechanism and effectiveness of welding distortion mitigation by static thermal tensioning were investigated by both finite element analysis and experiments. It shows that preset thermal tensioning can reduce longitudinal plastic compression remained in the weld and its adjacent zone significantly, so decrease the longitudinal residual stress and the susceptibility to welding distortion. | Shaoqing GUO Xiaohong LI Wenli XU Xuesong LIU Xin WAN Xitang TIAN | 2001 | Journal of Materials Science & Technology2001,17,1: | 1 |
| 17 | A New Method for Welding Aluminum Alloy LY12CZ Sheet with High Strength显示文摘 | Xu Wenli Tian Xitang Liu Xuesong | | 0,,02: | 1 |
| 18 | Development of a sensitive micro-magnetic chemiluminescence enzyme immunoassay for the determination of carcinoembryonic antigen显示文摘 | Wijitar Dungchai Weena Siangproh Jin-Ming Lin Orawon Chailapakul Si Lin Xitang Ying | 2007 | Analytical and Bioanalytical Chemistry2007,,6: | 1 |
| 19 | Studieo of surface photo voltage spect no scopy on quantum-sized ZnO nanopanticles显示文摘 | Zhang Xitang Zhang Jiaqi Xu Jinjie | 1999 | Chem J Chin univ1999,20,12: | 1 |
| 20 | Research on Corrosion Resistance of Checker Bricks in Regenerators of Glass Furnaces显示文摘To extend the service life of the upper checker bricks in the regenerator of glass furnaces with petroleum coke as fuel,the corrosion resistance of magnesia-chrome and alumina-chrome bricks with the similar apparent porosity was systematically researched.The results show that the Cr2O3 content and the microstructure present significant effects on the corrosion resistance.The molten corrosion reagent forms silicate and vanadate phases with low melting points between MgO crystals in magnesia-chrome bricks,and the volume strain generated by the melting and solidification process leads to the cracking and spalling of refractories,which intensifies the corrosion process.The encapsulation of alumina particles by alumina-chrome solid solutions in alumina-chrome bricks avoids contact with the low melting point liquid phases and improves the corrosion resistance of refractories. | AN Yi LIU Hao WANG Zhoufu MA Yan WANG Xitang | 2023 | China's Refractories2023,32,1: | 0 |