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国际农业工程大会

作者： Akinori Noguchi japan inter. research center for agric. sci. Tsukuba Japan Ph.D.

＜正＞ A new ohmic thawing system was tested in the thawing of frozen surimi, in comparison with the conventional thawing technique. Thawing rate, electric power and surimi gel strength were investigated. In the ohmic thawing, the voltage was set at 20 V and the frequency at 60 Hz. Salt solution in a concentration range of 0.1 % to 8.0 % was used as the electrode solution. In the conventional thawing, a 0 ℃chamber was used.

关键词： ohmic heating thawing frozen food surimi temperature distribution gel strength electric power

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Introducing oxygen vacancies in TiO_(2) lattice through trivalent iron to enhance the photocatalytic removal of indoor NO

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矿物冶金与材料学报:英文版 2023年第10期30卷 2025-2035页

作者： Peng Sun Sumei Han Jinhua Liu Jingjing Zhang Shuo Yang Faguo Wang Wenxiu Liu Shu Yin Zhanwu Ning Wenbin Cao Institute of Urban Safety and Environmental sci.nce Beijing Academy of Science and TechnologyBeijing 100054China School of Materials sci.nce and Engineering University of Science and Technology BeijingBeijing 100083China Beijing Wetech Environmental sci.Tech Co. Ltd.Beijing 100083China Institute of Multidisci.linary research for Advanced Materials(IMRAM) Tohoku UniversityKatahira 2-1-1Aoba-kuSendai 980-8577Japan Advanced Institute for Materials research(WPI-AIMR) Tohoku UniversityKatahira 2-1-1Aoba-kuSendai 980-8577Japan Tianjin College University of Science and Technology BeijingTianjin 301830China

The synthesis of oxygen vacancies(OVs)-modified TiO_(2)under mild conditions is *** this work,OVs were easily introduced in TiO_(2)lattice during the hydrothermal doping process of trivalent iron *** calculations based on a novel charge-compensation structure model were employed with experimental methods to reveal the intrinsic photocatalytic mechanism of Fe-doped TiO_(2)(Fe-TiO_(2)).The OVs formation energy in Fe-TiO_(2)(1.12 eV)was only 23.6%of that in TiO_(2)(4.74 eV),explaining why Fe^(3+)doping could introduce OVs in the TiO_(2)*** calculation results also indicated that impurity states introduced by Fe^(3+)and OVs enhanced the light absorption activity of TiO_(2).Additionally,charge carrier transport was investigated through the carrier lifetime and relative *** carrier lifetime of Fe-TiO_(2)(4.00,4.10,and 3.34 ns for 1at%,2at%,and 3at%doping contents,respectively)was longer than that of undoped TiO_(2)(3.22 ns),indicating that Fe^(3+) and OVs could promote charge carrier separation,which can be attributed to the larger relative effective mass of electrons and ***,Fe-TiO_(2)has higher photocatalytic indoor NO removal activity compared with other photocatalysts because it has strong light absorption activity and high carrier separation efficiency.

关键词： oxygen vacancies density functional theory calculations iron-doped titanium dioxide carrier separation photocatalytic removal of indoor nitric oxide

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