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Low Temperature Coating of Anatase Thin Films on Silica Glass Fibers by liquid phase deposition

Journal of Wuhan University of Technology(Materials Science) 2007年第1期22卷 136-139页

作者：李顺刘家臣 School of Materials Science and Engineering of Tianjin University Key Lab of Advanced Ceramics and Machining Technology Ministry of Education

Uniform crystalline TiO2 thin films were coated on silica glass fibers by liquid phase deposition from aqueous solution of ammonium hexafluorotitanate at low temperature. TiO2 thin films and nanopowders were prepared by adding H3BO3 into （NH4）2TiF6 solution supersaturated with anatase nano-crystalline TiO2 at 40 ℃. The effects of the deposition conditions on the surface morphology, section morphology, thickness of the deposited TiO2 thin films were investigated. The results indicate that the growth rate and particle size of the thin films were controlled by both the deposition conditions and the amount of anatase nano-crystalline TiO2.

关键词： TiO2 thin film silica glass fiber liquid phase deposition

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Preparation of TiO_2/ITO film by liquid phase deposition and its photoelectrocatalytic activity for degradation of 4-aminoantipyrine

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Transactions of Nonferrous Metals Society of China 2013年第11期23卷 3306-3311页

作者：李丹童海霞张玲长沙理工大学化学与生物工程学院电力与交通材料保护湖南省重点实验室长沙410004

A thin layer of TiO2 film was deposited on ITO surface via the liquid phase deposition （LPD） process. The photocurrent and electrochemical impedance spectroscopy （EIS） measurements indicated that the as-prepared LPD TiO2/ITO film had an excellent photoelectrochemical performance, which showed a sensitive and rapid response to the UV irradiation. The photogenerated electron-hole pairs could be effectively separated by applying an external bias to the TiO2 film electrode. The LPD TiO2/ITO film was employed to study the photoelectrocatalytic （PEC） degradation of 4-aminoantipyrine. Compared with other techniques, the PEC technique based on such a LPD film electrode had a synergetic effect for 4-aminoantipyrine degradation. When the applied bias potential was＋0.8 V and the supporting electrolyte concentration of Na2SO4 was 0.1 mol/L, the highest degradation efficiency within 120 min could reach 95%for 0.1 mmol/L 4-aminoantipyrine solution at pH 2.0.

关键词： liquid phase deposition TiO: film electrode photoelectrocatalysis 4-aminoantipyrine

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Fabrication and characterization of TiO2 nanowire array directly on aluminum substrate by liquid phase deposition

Fabrication and characterization of TiO2 nanowire array dire...

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第八届全国表面工程学术会议暨第三届青年表面工程学术论坛

作者： H.Wang X.D.Wu Ningbo Institute of Materials Technology & Engineering Chinese Academy of Sciences

Highly ordered anatase TiO2 nanowires were straightforwardly fabricated on aluminum with AAO film by liquid phase *** surface morphology,structure,element composition and their chemical states of TiO2 nanowire array were analyzed by means of SEM,XRD,EDX and *** formation process was also *** results show that the aluminum surface mainly contains TiO2 and amorphous Al2O3 prepared by LPD ***2 nanowires are all perpendicular to the substrate and their diameters are also accordant to those of AAO *** TiO2 nanowire array generated after heat treatment at 450℃for *** formation process of TiO2 nanowire array mainly depends on the ordered AAO and deposited time.

关键词： aluminum AAO TiO2 nanowire array liquid phase deposition

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Preparation and Characterization of Three-dimensional Photocatalyst——TiO_2 Particulate Film Immobilized on Activated Carbon Fibers

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过程工程学报 2006年第3期6卷 482-486页

作者：傅平丰栾勇戴学刚张建强张安华 Research Institute of Indoor Environment Beijing Union UniversityBeijing 100083China Institute of Process Engineering Chinese Academy of SciencesBeijing 100080China North China Mineral and Geology Testing Center of CNNC Tianjin 300181China

A novel three-dimensional photocatalyst, TiO2 particulate film immobilized on activated carbon fibers (TiO2/ACFs),was prepared by liquid phase deposittion. The photocatalyst was characterized by SEM, XRD, BET surface area and photodegradation of methylene blue solution. TiO2 particulate film, with a thickness of nearly 200 nm and grain sizes of 30～50 nm, was deposited on almost each carbon fiber. The inner space between adjacent fibers remained as unmodified ACFs,therefore, both UV illumination and polluted solutions were allowed to pass through the felt-form photocatalyst to form a three-dimensional environment for photocatalytic reactions. With BET surface areas of 400～600 m2/g, the TiO2/ACFs exhibited an enhanced adsorption of pollutants for photocatalysis. Comparative degradations indicated that photocatalytic activity of the TiO2/ACFs was slightly higher than that of Degussa P-25 TiO2. Two special properties, the three-dimensional structure and combined effects of ACFs' adsorption and titania's photodegradation, made contribution to high photocatalytic activity. Additionally, the TiO2/ACFs exhibited high stability and potentially application for practical usage.

关键词： liquid phase deposition TiO2 particulate film activated carbon fibers three-dimensional structure photocatalytic activity

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Synthesis and Photocatalytic Property of ZnO/TiO2 Inverse Opals Films with Controllable Composition and Topology

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Chinese Journal of Chemical Physics 2012年第2期25卷 235-241,I0004页

作者： Jiao Xu Bei-fang Yang Zheng-ping Fu Mei-wang Wen Yong-xun Zhao CAS Key Laboratory of Materials for Energy Conversion Department of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefei 230026China

A novel method to fabricate composition- （IO） films using a positive sacrificial ZnO and topology-controlled ZnO/TiO2 inverse opals IO template has been developed. This method includes a two-step process, preparation of ZnO IO by a simple electrochemical deposition using a self-assembly polystyrene colloidal crystal template and preparation of ZnO/TiO2 IO by a liquid phase deposition （LPD） process at room temperature. The composition and topology of ZnO/TiO2 IO can be easily controlled by changing the duration of the LPD. After 20 min LPD process, a ZnO/TiO2 composite IO with non-close-packed face-centered cubic air sphere array was obtained. Prolonging the duration to 60 min, a pure TiO2 IO （TIO-LPD60） with obviously thickened walls was formed. The formation mechanism for the compositional and topological variation was discussed. A preliminary study on UV photocatalytic property of the samples for degradation of methylene blue reveals that the composition and topology significantly influenced the photocatalytic activity of the IO film. The ZnO/TiO2 composite IO demonstrates a higher degree of activity than both pure ZnO and pure TiO2 IO, although they have a similar IO wall thickness. Moreover, with increasing IO wall thickness from -52 nm to -90 nm, TIO-LPD60 exhibits the highest level of photocatalytic performance.

关键词： Composite inverse opal TiO2 ZnO Photocatalysis liquid phase deposition

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