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| 1 | Preparation of 3D ordered mesoporous anatase TiO2 and their photocatalytic activity显示文摘Ordered crystalline mesoporous anatase titanium dioxides with different amounts of rutile were prepared by hard-template approaches using mesoporous silica(KIT-6)as the template.The resulting mesoporous materials were characterized by powder X-ray diffraction(PXRD),transmission electron microscope(TEM),N2 adsorption and Raman spectroscopy.All mesoporous TiO2 has three-dimensional(3D)ordered mesostructures with large Brunauer–Emmett–Teller(BET)surface area and narrow pore size distribution(ca.5 nm).It was found that the level of rutile phase in the mesoporous titanium oxide was related to the SO4^2-concentration in the starting materials.Their photocatalytic hydrogen production was evaluated and compared.It is found that low rutile content is beneficial for a high catalytic activity.All samples demonstrate a better activity than commercial P25. | Hui-Li Tang Yu Ren Shun-Hang Wei Gang Liu Xiao-Xiang Xu | 2019 | Rare Metals2019，38，5： | 5 |
| 2 | Rutile U-Pb age for the ultra-high pressure eclogite from the Dabie Mountains, central China: Evidence for rapid cooling显示文摘The U-Pb isotope compositions of rutile, om-phacite and garnet in the eclogite from the Jinheqiao area in the Southern Dabie ultrahigh-pressure metamorphic zonewere analyzed. The consistent high precision U-Pb age (218± 1.2) Ma of rutile in eclogite from the Dabie Mountains was obtained by two ways of isochron and common Pb correction based on the composition of omphacite. This proves that the omphacite in eclogite has a U/Pb ratio (μ = 2.8) low enough to be used for common Pb correction in the analyses of rutile. Under the rapid cooling condition (40℃/Ma) the closure temperature for U-Pb diffusion in rutile is about 470℃. Thus, this U-Pb age of rutile proves that 218 Ma should be the cooling age of eclogite at 470℃ instead of the peak meta-morphic age. | LI Qiuli LI Shuguang ZHOU Hongying LI Huimin HONG Ji’an WANG Qingchen H.J.Massonne | 2002 | Chinese Science Bulletin2002，47，1： | 5 |
| 3 | Eclogites of the Dabie Region: Retrograde Metamorphismand Fluid Evolution显示文摘Based upon fluid effects, retrograde metamorphism of eclogites in the Dabie region can be divided into the fluid-poor, fluid-bearing and fluid-rich stages. The fluid-poor stage is marked by polymorphic inversion, recrystallization and exsolution of solid solutions, and is thought to represent eclogite-facies retrograde environments. The fluid-bearing stage is likely to have occurred at the late stage of ecologite-facies diaphthorosis and is represented by kyanite porphyroblasts, rutile, and sodic pyroxene in association with high-pressure hydrous minerals such as phengite and zoisite (clinozoisite) without significant amount of hydrous minerals such as amphibole, epidote and biotite. The fluid-rich stage might have commenced concomitantly with lower amphibolite-facies diaphthoresis and persisted all the way towards the near-surface environment. The product of this stage is characterized by plentiful hydrous and volatile-bearing phases.The dissemination-type rutile mineralizations in eclogites might have formed by preferential shearing-induced pressure solution of gangue minerals at the fluid-bearing stage. The accompanying vein rutile was precipitated from fluids of this stage after local transport and concentration, and may hence represent proximal mobilization of titanium from the eclogite. Therefore, rutile veins can be used as an exploration indicator for dissemination-type rutile deposits. | 顾连兴 杜建国 翟建平 赵成浩 范建国 张文兰 | 2002 | Acta Geologica Sinica(English Edition)2002，76，2： | 4 |
| 4 | Synthesis and characterization of (Ni,Sb)-co-doped rutile ceramic pigment via mechanical activation-assisted solid-state reaction显示文摘(Ni,Sb)-co-doped rutile yellow ceramic pigments were synthesized via a mechanical activation-assisted solid-state reaction in a stirred bead mill.The effects of mechanical grinding of the raw materials on the synthesis of (Ni,Sb)-co-doped rutile pigment were investigated.The results show that mechanical activation effectively decreased the crystallinity of the mixed precursors,thus enhancing their reactivity and the migration rate of ions.These effects lowered the temperature required for formation of the rutile phase.Compared with results from a mixture of separately ground precursors,the mixture of raw materials ground together was more effective for accelerating nickel/antimony ions doping into the TiO2structure and improved the color performance of the pigment.The pigment from the mixed raw materials ground for 2.0h and heat-treated at 1100℃ could be used as an environmentally-friendly ceramic yellow pigment owing to its low-toxicity,bright yellow hue,good chemical/thermal durability, and high cost-effectiveness. | Shi Zhang Zhidong Pan Yanmin Wang | 2018 | Particuology2018，16，6： | 4 |
| 5 | Organic ammonium ion-occluded flexible coordination polymers:Thermal activation,structure transformation and proton transfer显示文摘Solvothermal reactions of 1,3,5-benzenetricarboxylic acid (H3btc) with cadmium acetate or zinc acetate yielded two compounds formulated as (Me2NH2)[Cd(btc)]·DMA (1) (btc = 1,3,5-benzenetricarboxylate, DMA = N,N-dimethylacetamide) and (Me2NH2)[Zn(btc)]·DMF (2) (DMF = N,N-dimethylformamide). Both are 3-D frameworks with the rutile topology, which are constructed from six-connected dimeric metal cores and three-connected btc linkers. The solvent molecules and counter cations are located in the 1-D channels of the frameworks. A slight difference between the two compounds is the different connectivity modes of the metal atoms with the carboxylate groups of the ligands. However, this slight difference results in distinct flexibilities of the two frameworks. Variable-temperature powder X-ray diffraction studies revealed that the framework of 1 collapses when heated at 180 °C with loss of the guest species, but compound 2 undergoes two structural transformations below 380 °C. Thermogravimetry-infrared spectroscopy analysis for 2 showed that the two structural transformations are induced by separate losses of solvent molecules and counter cations, and that the dimethylammonium cations are eliminated as neutral dimethylamine molecules. IR spectroscopy demonstrated that the protons are transferred from the counter cations onto the uncoordinated carboxylate oxygen atoms on the channel walls. Sorption and proton conduction studies have also been performed for the compounds. | XIE LinHua1, LIN JianBin1, LIU XiaoMin1, XUE Wei1, ZHANG WeiXiong1, LIU ShuXia2, ZHANG JiePeng1 & CHEN XiaoMing1 1MOE Key Laboratory of Bioinorganic and Synthetic Chemistry State Key Laboratory of Optoelectronic Materials and Technologies School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, China 2Key Laboratory of Polyoxometalates Science of Ministry of Education College of Chemistry, Northeast Normal University, Changchun 130024, China | 2010 | Science China Chemistry2010，53，10： | 3 |
| 6 | Rutile to Titanite Transformation in Eclogites and its Geochemical Consequences:An Example from the Sumdo Eclogite,Tibet显示文摘The formation of titanite coronae after rutile is common in retrograde high-to ultrahigh-pressure meta-mafic rocks,which provides a good opportunity to address the geochemical behavior of HFSE in crustal environments.In the Sumdo eclogite,titanite occurs either as a corona around rutile grains or as semi-continuous veins cross-cutting the major foliation,whereas rutile grains occur either as inclusions in garnet or omphacite or as a relict core surrounded by titanite.Textural relationships and trace elements characteristics of rutile and titanite with different occurrences indicate that both minerals preferentially incorporate Nb and Hf over Ta and Zr in aqueous fluid.Moreover,the breakdown of omphacite and epidote could release substantial amounts of aqueous fluids enriched in Ca,Si,Fe and REE,which would react with rutile to form titanite coronae and veins.During this process,water-insoluble elements,like HFSE and HREE,behave like mobile elements,but they do not migrate substantially out of the system,instead,tending to react in situ.This suggests that the aqueous fluids released during the retrograde metamorphic reactions in mafic rocks could not substantially transfer fluidimmobile elements into the overlying mantle wedge in subduction environments. | ZHAO Linghao ZENG Lingsen GAO Li’e HU Mingyue SUN Dongyang ZHANG Lifei | 2023 | Acta Geologica Sinica(English Edition)2023，97，1： | 2 |
| 7 | Polygonal multi-polymorphed Li4Ti5Oi2@rutile TiO2 as anodes in lithium-ion batteries显示文摘Li4Ti50i2 (LTO) has attracted considerable attention in lithium-ion battery (LIB) applications because of its favorable characteristics as an anode material. Despite its promise, the widespread use of LTO is still limited primarily due to its intrinsically poor electric and ionic con ductivities and high surface reactivity. To address these issues, we desig ned polyg onal nano architectures composed of various Li-Ti oxide crystal polymorphs by a facile synthesis route. Depending on the pH condition, this synthesis approach yields multi-polymorphed Li-Ti oxides where the interior is dominantly composed of a Li-rich phase and the exterior is a Li-deficient (or Li-free) phase. As one of these variations, a polygonal LTO-rutile TiO2 structure is formed. The rutile TiO2 on the surface of this LTO composite significantly improves the kinetics of Li^+ insertion/extraction because the channel along the o-axis in TQ2 provides a Li^+ highway due to the significantly low energy barrier for Li^+ diffusion. Moreover, the presenee of rutile TiO2, which is less reactive with a carbonate-based electrolyte, ensures Iong-term stability by suppress)ng the undesirable interfacial reaction on LTO. | Chang Hyun Hwang Hee-eun Kim Inho Nam Jin Ho Bang | 2019 | Nano Research2019，12，4： | 2 |
| 8 | A molecular dynamics simulation of the structure of ionic liquid (BMIM^+/PF_6^-)/rutile (110) interface显示文摘The interfacial structure between the room-temperature ionic liquid, 1-butyl-3-methyl-imidazolium hexafluorophosphate (BMIM+/PF6-) and rutile (110) surface is simulated by classical molecular dynam-ics simulation, aiming to model a crucial constituent of the electrolyte/semiconductor interface. The simulation results show several enhanced layers forming in the interfacial region, especially for the anions. A well ordered double layering structure of the ions is also observed in the interfacial region. The cations are found to organize themselves in a parallel alignment with respect to the TiO2 slab, with an obvious elongation of the side chains. | WANG Shu1, CAO Zhen1, LI Shu1 & YAN TianYing1,2 1 Institute of New Energy Material Chemistry and Department of Material Chemistry, Nankai University, Tianjin 300071, China 2 Institute of Scientific Computing, Nankai University, Tianjin 300071, China | 2009 | Science China Chemistry2009，52，9： | 1 |
| 9 | Eu(III) adsorption on rutile:Batch experiments and modeling显示文摘Eu(III) adsorption on rutile was investigated as a function of contact time,pH,ionic strength and Eu(III) concentration by using a batch experimental method.The effects of carbonate,sulfate,and phosphate were also studied.It was found that the kinetics of Eu(III) adsorption on rutile could be described by a pseudo-second-order model.The adsorption of Eu(III) on rutile is strongly pH-dependent,but relatively insensitive to ionic strength.A double layer model (DLM) with two inner-sphere Eu(III) surface complexes was applied to quantitatively interpret the adsorption of Eu(III) on rutile.There were no apparent effects of carbonate and sulfate on Eu(III) adsorption,whereas the presence of phosphate promoted Eu(III) adsorption on rutile.The surface complexes of Eu(III) on rutile were evidenced by X-ray photoelectron spectroscopy (XPS). | WANG XueFeng,SHI KeLiang,GUO ZhiJun & WU WangSuo Radiochemistry Lab,School of Nuclear Science and Technology,Lanzhou University,Lanzhou 730000,China | 2010 | Science China Chemistry2010，53，12： | 1 |
| 10 | Flotation Separating Rutile from Calcium and Silicon Gangue Minerals显示文摘Rutile separation from calcite, apatite and quartz by flotation was investigated. The results show that the rutile separation from calcium and silicon gangue minerals can be realized with alkyl-imino-bismethylene phosphoric acid (TF112) as a collector and sodium hexametaphosphate (SH) as a regulator. | Hao Ding1, HaiLin 2 1) Beijing Academy of Building Materials, Beijing 100041, China 2) University of Science and Technology Beijing, Beijing 100083, China | 2001 | Rare Metals2001，20，4： | 1 |
| 11 | Effect of Oxidizing Atmosphere on the Surface of Titanium Dental Implant Material显示文摘Direct oxidation is a simple and effective method for titanium surface treatment.In this research,a titanium sample was directly oxidized at the high temperature in two different atmospheres,air and pure oxygen,to obtain better atmosphere for titanium surface treatment.The results of the Raman spectroscopy indicated that in both atmospheres,the rutile bioactive phase(TiO2)has been formed on the titanium surface.The results of X-ray diffraction(XRD)also revealed that the surface of oxygen-treated sample was composed of the rutile phase and titanium monoxide(TiO),while at the surface of the air-treated sample,the rutile phase and titanium dioxide had been formed.Further,the results of Field Emission Scanning Electron Microscopy(FE-SEM)showed that by the surface treatment of titanium in both atmospheres,some micro-features including cracks thinner than 30 nm were formed on the surface.Because of more apatite forming ability and fewer water contact angle and more L-929 cell attachment of the air-treated titanium,it seemed that air,in comparison to the pure oxygen,is more promising atmosphere for the direct oxidation of titanium and improving its biofunctionalization. | Mohammad Khodaei Akram Alizadeh Hamid Reza Madaah Hosseini | 2019 | Journal of Bionic Engineering2019，16，6： | 1 |
| 12 | A simple and novel synthetic route to prepare anatase TiO2 nanopowders from natural ilmenite via the H3PO4/NH3 process显示文摘A simple and novel technique for the preparation of anatase TiO2 nanopowders using natural ilmenite(FeTiO3)as the starting material is reported.Digesting ilmenite with concentrated H3PO4 under refluxing conditions yields a whiteα-titanium bismonohydrogen orthophosphate monohydrate(TOP),Ti(HPO4)2·H2O,which can be easily isolated via gravity separation from unreacted ilmenite.The addition of ammonia to the separated TOP followed by calcination at 500°C completes the preparation of anatase TiO2.Calcination at temperatures above 800°C converts the anatase form of TiO2 to the stable rutile phase.The removal of iron from ilmenite during the commercial production of synthetic TiO2 is problematic and environmentally unfriendly.In the present study,the removal of iron was found to be markedly simple due to the high solubility of iron phosphate species in concentrated H3PO4 with the precipitation of TOP.The titanium content of the prepared samples on metal basis with silica and phosphorous as major impurities was over 90%.Prepared TiO2 samples were characterized using X-ray fluorescence,Fourier-transform infrared spectroscopy,Raman spectroscopy,ultraviolet–visible diffuse reflectance spectroscopy,high-resolution transmission electron microscopy,and X-ray diffraction analyses.The photocatalytic potentials of the commercial and as-prepared TiO2 samples were assessed by the photodegradation of rhodamine B dye. | Lalinda Palliyaguru Ushan S.Kulathunga Lakruwani I.Jayarathna Champa D.Jayaweera Pradeep M.Jayaweera | 2020 | International Journal of Minerals,Metallurgy and Materials2020，27，6： | 1 |
| 13 | Effect of substrate materials on rutile crystalline orientation in plasma-sprayed TiO2 coatings显示文摘TiO2 coatings are of technical importance owing to their promising applications to photocatalytical, electrical, optical and tribological coatings. Thermal spraying process has been widely used to deposit both metallic and nonmetallic coatings. During thermal spraying, spray particle at fully or partially melted condition is projected to a substrate and subsequently flattens, rapidly cools and solidifies. Therefore, a coating in lamellar structure is usually formed as a quenched microstructure. TiO2 coatings were deposited on different substrates through plasma spraying with fused-crushed powder in rutile phase as feedstock to reveal the crystalline orientation in the coatings. XRD results show that the coatings consist of rutile phase with a fraction of anatase phase, and the rutile phase presents a preferable crystalline orientation along [101] direction. It is found that the orientation factors of rutile phase in the thin coatings are significantly influenced by substrate materials. The thick coatings yield the same orientation factors of 0.22 to 0.23 on all substrates in spite of substrate materials. It is considered that the thermal properties of substrate materials are the dominant factors for the preferable crystalline orientation in rutile phase within plasmasprayed TiO2 coating. | YANG Guan-jun LI Chang-jiu WANG Yu-yue | 2004 | 中国有色金属学会会刊:英文版2004，14，z1： | 0 |
| 14 | Transition of TiO2 in TiO2/Vermiculite Nanocomposites显示文摘The TiO2/vermiculite composites were prepared by in-situ hydrolyzing reaction and in-situ dehydrating reaction of tetrabutyl titanate-hexadecyl trimethyl ammonium bromide intercalated vermiculite. The structural phase transition of TiO2 in TiO2/vermiculite composites calcined at different temperatures was characterized by using XRD and Raman. The results show that at calcination temperature of 800℃ appeared the anatase phase of TiO2 in TiO2/vermiculite nanocomposites, while pure TiO2 is all converted to rutile at the same temperature. The average crystal size of TiO2 in TiO2/vermiculite nanocomposites and pure TiO2 both increase with the calcination temperature. The average grain size of TiO2 in TiO2/vermiculite nanocomposites is less than that of pure TiO2 at the same calcination temperature. The results also show that the silicon-oxygen structure in layered vermiculite structure can effectively depress the phase transformation from anatase to rutile, thus enhancing the transition temperature and inhibitting the growth of anatase crystals. | LUO Li-ming PENG Tong-jiang SUN Hong-juan | 2013 | 矿物学报2013，33，S1： | 0 |
| 15 | Microstructural Characterization and Tensile Behavior of Rutile(TiO_2)-Reinforced AA6063 Aluminum Matrix Composites Prepared by Friction Stir Processing显示文摘Rutile(TiO_2) particle-reinforced aluminum matrix composites were prepared by friction stir processing. The microstructure was studied using conventional and advanced characterization techniques. TiO_2 particles were found to be dispersed uniformly in the composite. Clusters of TiO_2 particles were observed at a higher particle content of 18 vol%. The interface between the TiO_2 particle and the aluminum matrix was characterized by the absence of pores and reactive layer.Sub-grain boundaries, ultra-fine grains and dislocation density were observed in the composites. TiO_2 particles improved the mechanical properties of the composites. However, a drop in tensile strength was observed at a higher particle content due to cluster formation. All the prepared composites exhibited ductile mode of fracture. | Sahayam Joyson Abraham Isaac Dinaharan Jebaraj David Raja Selvam Esther Titilayo Akinlabi | 2019 | Acta Metallurgica Sinica(English Letters)2019，32，1： | 0 |
| 16 | Effect of Different Titanium Surface Treatments on the Adhesion Test Result:Dental Application显示文摘The aim of the study was to investigate the effect of different surface treatment of titanium(Ti)on the adhesion test results for dental application.Ti substrates roughened by 400 to 1500-grit SiC polish papers and alumina blasting,alkali treated by 5 molar(M)NaOH and KOH solutions and heat treated at the temperature range of 400-800℃were used in this study.The treated samples were subjected to the adhesion test.According to the results of the adhesion test,the adhesive strength showed the highest value for the blasted titanium among all polished and blasted samples.The Ti samples heated at 650℃showed the highest adhesive strength among all heat-treated samples.Further,the adhesion test results indicated the higher adhesive strength of chemically treated samples treated by NaOH rather than that by KOH.The polished and heated Ti samples showed the highest adhesive strength among all samples. | Alireza Valanezhad Masayoshi Suzue Sirus Safaee Mahdis Nesabi Mohammad Khodaei Shigeaki Abe Ikuya Watanabe | 2023 | Journal of Wuhan University of Technology(Materials Science)2023，38，1： | 0 |
| 17 | NONMETALS DEPOSITS显示文摘20150980Chen Kegui(School of Earth Science and Technology,Southwest Petroleum University,Chengdu 610500,China);Li Li Evolution of the Potash-Rich Areas in Evaporation Basin during the Epigenetic Stage with Continental Block Being Active(Advances in Earth Science,ISSN1001-8166,CN62-1091/P,29(4),2014,p.515-522,8illus., | | 2015 | Abstracts of Chinese Geological Literature2015，31，2： | 0 |
| 18 | Titanium Dioxide Market:Short Promising but Future Worrying | Bi Sheng,Titanium Dioxide Branch of China Chemical Industry Productivity Center | 2010 | China Chemical Reporter2010，，21： | 0 |
| 19 | INFRARED SPECTRAL STUDY ON CASSITERITE OF DIFFERENT ORIGINS显示文摘Spectroscopic study on the origin of cassiterite is a new aspect of modern genetic mineralogy as well as a significant work of quantum mineralogy. In the previous articles, a systematic investigation of quantum mineralogy on piemontite was carried out, mainly to study its crystal field spectra and to explain the formation process and origin of the Hainan iron deposit. The infrared spectra | 彭明生 何双梅 | 1985 | Chinese Science Bulletin1985，30，12： | 0 |
| 20 | Highly Active Rutile TiO_2 for Photocatalysis显示文摘Nanocrystalline titania was prepared by the homogeneous-precipitation method at temperature lower than 120℃. The properties of powders were identified by XRD,TEM and diffuse reflection spectra.The results showed that rutile titania formed at 70℃without calcination in air.Nanometer rutile TiO_2 had good crystalline and small particle size.The formation mechanism of rutile was also discussed.The photocatalytic activity of the prepared particles was tested for the degradation of methyl orange.The photocatalytic activity of rutile TiO_2 was higher than those obtained from Degussa P-25 TiO_2.The reasons for high photocatalytic activity of futile were discussed. | Junping Yan Zilong Tang Zhongtai Zhang Zhigang Zhou | 2006 | 稀有金属材料与工程2006，35，A03： | 0 |
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