The structural and photocatalytic properties of TiO〓 as well as surface acidity were greatly improved by sulfation. SO〓〓/TiO〓 solid superacid with Hammett constant Ho less than -12.14 was prepared by treating the TiO〓 with 1.0mol. L〓 sulfuric acid solution and then calcining at 450℃ for 3h. When compared to unmodified TiO〓, the SO〓〓/TiO〓 superacid catalyst exhibited higher anatase content, smaller crystal size, higher specific surface area, centralized pore size distribution, and the blue-shifted band edge of uv-vis adsorption spectra. Furthermore, the SO〓〓/TiO〓 superacid also showed excellent reaction activity and stability for CH〓Br photocatalytic decomposition even under the moist reaction conditions. The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.

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The apparent quantum efficiency of SO〓〓/TiO〓 was 10 times of that of TiO〓 catalyst for the photocatalytic degradation of bromomethane. Therefore, the SO〓〓/TiO〓 superacid catalyst is promising for practical application in environmental remediation.It was found that both L and B acid sites exist on SO〓〓/TiO〓 photocatalyst while only L acid sites on TiO〓 photocatalyst. On the basis of experimental results, the synergistic model of superacidic centers was proposed for SO〓〓/TiO〓 photocatalyst to explain the photocatalytic behavior and the mechanism of superacidifing effects, assuming that the adjacent L and B acid sites induced by SO〓〓 comprise cooperatively the superacidic center on superacid photocatalyst. The group cooperation of the superacidic center could strengthen the surface acidity, increase surface acid sites and the adsorbtion of O〓, promote separation of photogenerated electron-hole pair, enhance the interfacial transfer of charges and reversibility of water adsorption. Consequently the excellent photocatalytic activity, reaction stability and resistibility to humidity of SO〓〓/TiO〓 superacid photocatalyst may attributed to the group cooperated effect of the superacidic center on the photocatalyst.

研究結(jié)果表明：SO〓〓與TiO〓表面的結(jié)合為螯合式雙配位結(jié)構(gòu)欧美色图图区；TiO〓光催化劑表面經(jīng)H〓SO〓浸漬處理后www.欧美色图.com，提高了表面酸性，改善了催化劑結(jié)構(gòu)和光催化性能，當H〓SO〓浸漬濃度為1.0mol.L〓aigao视频在线、燒結(jié)溫度為450℃時超碰在线伊人网，可制得SO〓〓/TiO〓超強酸催化劑(H〓＜-12.14)，其結(jié)構(gòu)和光催化活性得到明顯改善中文字幕av免费专区久久，與TiO〓相比人人超碰人人超碰人人，SO〓〓/TiO〓光催化劑的銳鈦礦含量高、晶粒小国产麻豆日韩在线观看网站免费、BET比表面積大黄页网站免费观看的视频高清、孔徑分布集中、光譜吸收邊藍移47pao强力打造免费视频，具有優(yōu)異的光催化氧化活性啊啊啊作爱免费视频暴、穩(wěn)定性及抗?jié)裥阅埽獯呋到怃宕淄榈谋碛^量子效率比TiO〓催化劑提高了一個數(shù)量級台湾AV国片精品偷拍，是一種有實際應用前景的高效光催化劑日韩一区美女在线观看；由此提出了SO〓〓/TiO〓超強酸催化劑表面集團協(xié)同作用的超強酸中心模型，認為在SO〓〓/TiO〓超強酸催化劑表面外国操逼视频网站，由SO〓〓誘導的相鄰L酸中心和B酸中心組成了集團協(xié)同作用的超強酸中心免费乱伦av，其集團協(xié)同作用顯著地增強了催化劑表面酸性、增大了表面酸量及O〓吸附量黄大片视频在线观看大片、促進了光生電子和空穴的分離及界面電荷轉(zhuǎn)移久草亚洲视频，具有可逆吸附水的性能，是SO〓〓/TiO〓超強酸催化劑具有優(yōu)異的光催化氧化活性黄色免费视色、很好的活性穩(wěn)定性及抗?jié)裥阅艿闹匾颉?/p>

On the basis of previously research, this paper re-probe into the mechanism of electro-chemist mechanical manufacturing process, making the rational technological parameter, and developing the manufacturing equipment. Through a lot of technology tests, get a lot of labratory data, accordingly, researched the surface feature of the electro-chemist manufacturing process, and deeply discussed its influence on the work piece feature. The last result is that: the electro-chemist mechanical manufacturing process can reduce the low-frequency component significantly, but on high-frequency component, it has little influence, having obviously positive pole flat effect. After manufacture, the tip parts on the surface of the work piece is cut off, there is micro "high land" shape, the parameter for surface roughness is reduced a lot, the surface outline of the work piece is negative, the bearing length rate is cliffy. Also the surface quality of the work piece is improved. This can help to avoid changing the shape, improve the feature of rub, gear and reduce the time to suit. This would also ensure the precision and result in a longer work piece life.

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A magnetic source and condenser for protecting a pipe, ionizing any fluid flowing therein, and ionizing any dissolved and suspended solids in such fluid, comprising:a magnetic source including a magnet having a pair of opposed planar major faces and a planar minor face extending between said major faces and perpendicular to said major faces,said magnet being charged so that one of said major faces is a south pole and the other of said major faces is a north pole,a magnetic condenser a pair of pole pieces, each of said pole pieces having a pair of opposed planar major faces, one of which is an inner major face and the other of which is an outer major face, the area of said inner major faces being equal to that of the major faces of said magnet, the area of said outer major face being larger than each of said major faces of said magnet,said pole pieces being positioned on opposite sides of said magnet such that said pole pieces sandwich said magnet, said inner major face of each pole piece is contiguous with and completely covers an entire major face of said magnet, and said outer major face of each pole piece faces away from said magnet,each pole piece having an integral foot extending perpendicularly to said inner major face of each pole piece such that said pole pieces have two respective integral feet which extend toward each other and are substantially coplanar, each foot having a distal and a proximal surface with respect to said magnet, each foot having an end which is spaced from the end of the opposite foot,said distal surface of each foot having a predetermined concave curvature which will conformingly mate with an outside surface of a pipe having a predetermined convex curvature,said proximal surface of each foot being contiguous with said minor face of said magnet

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A series of erosion-corrosion test has been done to J55 steel under the influence of current of gas-liquid phase by indoor self-made devices, and the corrosion mechanism of current of gas-liquid phase to oil pipe's inner surface has been got. The results show that oil pipe's inner surface will be corroded fleetly by liquid medium and corrosion products will form on it. But at the same time, the corrosion products or protective layer will be removed from the inner surface of steel pipes under the alternate impact of high speed gas and liquid flow, and on this bare steel surface corrosion film will form again and be removed again. Thus, by these ways the corrosion is exacerbated. Surface erosion-corrosion failure comes into being with the circulation of this process going on.

本文主要在氣液兩相流作用條件下欧美一级做一级A，通過室內(nèi)自制裝置，對管材鋼J55做了系列沖刷-腐蝕試驗亚洲欧美日韩黄色视频，結(jié)果表明日韩最新无码资源站AV，氣液兩相流對鋼管內(nèi)表面沖刷－腐蝕的機理是鋼管內(nèi)表面會受到液體介質(zhì)的快速腐蝕，生成腐蝕產(chǎn)物欧美成人网1314WWW，同時鋼管金屬表面不斷被具有高流速的氣液相交替地沖擊免费一看一毛片，不斷地從金屬表面脫去保護膜或腐蝕產(chǎn)物，裸露的鋼表面又會被介質(zhì)快速腐蝕形成腐蝕膜后色色爱爱视频，再被兩相流沖掉1024你懂的金沙人妻片，如此反復，造成管內(nèi)金屬表面膜的連續(xù)破壞好吊色中文字幕精品在线观看，使腐蝕加劇欧美日韩α片在线观看，最終導致鋼鐵表面的沖刷腐蝕失效。

apparently：明顯地,表面上地

apparatus 裝置,設備 | apparently 明顯地,表面上地 | applaud vi.鼓掌歡迎,歡呼

ostensibly：假裝地/表面地

ostensible /外表的/ | ostensibly /假裝地/表面地/ | ostensive /明示的/顯示的/

ostensibly: adv.1：表面上地,假裝地,詭稱地 2.可公開地,明顯地

abstruse: a.深奧的,難解的 | ostensibly: adv.1.表面上地,假裝地,詭稱地 2.可公開地,明顯地 | vexing: a.惹人惱火的,使人苦(煩)惱的,傷腦筋的

outwardly：表面地

outward-bound 開往外地的 | outwardly 表面地 | outwardness 客觀的存在

professedly：公然地; 表面地; 專業(yè)地; 冒詐地 (副)

professed 公然的; 專門的; 公開承認的; 專業(yè)的 (形) | professedly 公然地; 表面地; 專業(yè)地; 冒詐地 (副) | professional 專業(yè)的, 職業(yè)的 (形)

seemingly：表面地;近乎真實地

seem 好像,似乎 | seemingly 表面地;近乎真實地 | segment 部分

superficially: adv.1：表面地,外部地,草率粗略地 2.膚淺地,淺薄地

partially: adv.1.偏袒地,偏心地 2.部分地,不完全地 | superficially: adv.1.表面地,外部地,草率粗略地 2.膚淺地,淺薄地 | unwittingly: adv.1.沒有意識到地 2.非故意地

unwittingly: adv.1：沒有意識到地 2.非故意地

superficially: adv.1.表面地,外部地,草率粗略地 2.膚淺地,淺薄地 | unwittingly: adv.1.沒有意識到地 2.非故意地 | document: v.用文件或文獻證明,為...引證,記實性地描述

ectally：表面地

ectal 表面的 | ectally 表面地 | ecthlipses 尾輔音省略

surfacely：表面地,膚淺地

microseismic activity 微震動 | surfacely 表面地,膚淺地 | ditheism [宗] 善惡二神論