添加DMF对TiO_2薄膜光生阴极保护性能影响研究
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摘要
在钛酸正丁酯水解溶胶中加入二甲基酰胺(DMF),通过浸渍-提拉法制备了TiO_2膜。应用XRD、Raman光谱、SEM和接触角测量等表征手段对比分析了无添加和添加DMF所制备TiO_2膜在组成、微观形貌以及表面润湿性等方面的特性,并结合光电化学技术研究了该体系在紫外光作用下的光响应特征和光生阴极保护能力。结果显示,DMF的添加有效提升了TiO_2膜的连续致密性,在光照作用下可对基体金属提供稳定的阴极保护,且表现出更加优异的暗态防护性能,有效阻止溶液中Cl-在膜层中的传输。
TiO_2 film surface normally presents micro porous after annealing treatment, which is one of the key factors on restraining the application of photogenerated cathodic protection of it. This study has prepared DMF modified TiO_2 film by sol-gel and dip-coating method on the substrate of FTO glass.The influence of DMF on the corresponding film composition, microstructure and surface wettability are explored by XRD, Raman spectroscopy and SEM. The property of photo response and cathodic protection behavior of the film coupled with 316 stainless steel are studied under UV illumination. The results indicated that the addition of DMF has essentially improved the compact continuity of the TiO_2 film, which supplies effective inhibition on the corrosive ions migration to the substrate. And the modified film presents comparable photogenerated cathodic protection property to that of pure TiO_2 film.
TiO_2 film surface normally presents micro porous after annealing treatment, which is one of the key factors on restraining the application of photogenerated cathodic protection of it. This study has prepared DMF modified TiO_2 film by sol-gel and dip-coating method on the substrate of FTO glass.The influence of DMF on the corresponding film composition, microstructure and surface wettability are explored by XRD, Raman spectroscopy and SEM. The property of photo response and cathodic protection behavior of the film coupled with 316 stainless steel are studied under UV illumination. The results indicated that the addition of DMF has essentially improved the compact continuity of the TiO_2 film, which supplies effective inhibition on the corrosive ions migration to the substrate. And the modified film presents comparable photogenerated cathodic protection property to that of pure TiO_2 film.
引文
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[2]Hao L,Zhang S X,Dong J H,et al.Evolution of atmospheric corrosion of Mn Cu P weathering steel in a simulated coastal-industrial atmosphere[J].Corros.Sci.,2012,59:270
[3]Wang Z F,Liu J R,Wu L X,et al.Study of the corrosion behavior of weathering steels in atmospheric environments[J].Corros.Sci.,2013,67:1
[4]Mao C L,Xiao K,Dong C F,et al.Corrosion behavior of extra deep drawing cold rolled sheet in stimulative ocean-atmosphere environment[J].J.Chin.Soc.Corros.Prot.,2017,37:101(毛成亮,肖葵,董超芳等.超深冲压用冷轧板在模拟海洋大气环境中的腐蚀行为[J].中国腐蚀与防护学报,2017,37:101)
[5]Liu W,Wang J.Environmental impact of material corrosion research progress in marine splash zone[J].J.Chin.Soc.Corros.Prot.,2010,30:504(刘薇,王佳.海洋浪溅区环境对材料腐蚀行为影响的研究进展[J].中国腐蚀与防护学报,2010,30:504)
[6]Hao L,Zhang S X,Dong J H,et al.Evolution of corrosion of MnCu P weathering steel submitted to wet/dry cyclic tests in a simulated coastal atmosphere[J].Corros.Sci.,2012,58:175
[7]H?rléS,Mazaudier F,Dillmann P,et al.Advances in understanding atmospheric corrosion of iron.II.Mechanistic modelling of wet-dry cycles[J].Corros.Sci.,2004,46:1431
[8]Graedel T E,Franey J P,Kammlott G W.Ozone-and photon-enhanced atmospheric sulfidation of copper[J].Science,1984,224:599
[9]Burleigh T D,Ruhe C,Forsyth J.Photo-corrosion of different metals during long-term exposure to ultraviolet light[J].Corrosion,2003,59:774
[10]Bertolini L,Gastaldi M,Pedeferri M P,et al.Prevention of steel corrosion in concrete exposed to seawater with submerged sacrificial anodes[J].Corros.Sci.,2002,44:1497
[11]Rajendran V,Murugesan R.On site monitoring of corrosion of marine structure using self sacrificial galvanic anodes-case study[J].J.Civil Eng.Sci.,2013,2:193
[12]Scully J R.Electrochemical impedance of organic-coated steel:Correlation of impedance parameters with long-term coating deterioration[J].J.Electrochem.Soc.,1989,136:979
[13]Hosking N C,Str?m M A,Shipway P H,et al.Corrosion resistance of zinc-magnesium coated steel[J].Corros.Sci.,2007,49:3669
[14]Shen G X,Chen Y C,Li J,et al.Studies of mechanism on photogenerated cathodic protection of the Ti O2-Sn O2composite films[J].J.Chin.Soc.Corros.Prot.,2006,26:109(沈广霞,陈艺聪,李静等.纳米Ti O2-Sn O2复合薄膜的光生阴极保护作用及机理研究[J].中国腐蚀与防护学报,2006,26:109)
[15]Park H,Kim K Y,Choi W.A novel photoelectrochemical method of metal corrosion prevention using a Ti O2solar panel[J].Chem.Commun.,2001,(3):281
[16]Li J,Lin C J,Li J T,et al.A photoelectrochemical study of Cd S modified Ti O2nanotube arrays as photoanodes for cathodic protection of stainless steel[J].Thin Solid Films,2011,519:5494
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[19]Choi H,Stathatos E,Dionysiou D D.Photocatalytic Ti O2films and membranes for the development of efficient wastewater treatment and reuse systems[J].Desalination,2007,202:199
[20]Zhang L,Wang X T,Li H,et al.Photogenerated cathodic protection properties of Cd Se-Ti O2composite material on 304 stainless steel[J].Corros.Prot.,2015,36:258(张亮,王秀通,李红等.Cd Se-Ti O2复合材料对304不锈钢的光生阴极保护性能[J].腐蚀与防护,2015,36:258)
[21]Ding Z X,Hou Y D,Li D Z,et al.Effect of morphological structure and photoelectric properties on photocatalytic performance of Ti O2[J].Acta Phys.-Chim.Sin.,2003,19:978(丁正新,侯乙东,李旦振等.形态结构和光电特性对纳米Ti O2光催化性能的影响[J].物理化学学报,2003,19:978)
[22]Li J,Yun H,Lin C J.The Fe-doped Ti O2nanotube arrays as a photoanode for cathodic protection of stainless steel[J].Acta Phys.-Chim.Sin.,2007,23:1886(李静,云虹,林昌健.铁掺杂Ti O2纳米管阵列对不锈钢的光生阴极保护[J].物理化学学报,2007,23:1886)
[23]Zhu Y F,Du R G,Li J,et al.Photogenerated cathodic protection properties of a Ti O2nanowire film prepared by a hydrothermal method[J].Acta Phys.-Chim.Sin.,2010,26:2349(朱燕峰,杜荣归,李静等.水热法制备Ti O2纳米线薄膜的光生阴极保护性能[J].物理化学学报,2010,26:2349)
[24]Lei C X,Zhou H,Feng Z D.Effect of liquid-phase-deposited parameters on the photogenerated cathodic protection properties of Ti O2films[J].J.Alloy.Compd.,2012,542:164
[25]Li S N,Wang Q,Chen T,et al.Study on cerium-doped nano-Ti O2coatings for corrosion protection of 316 L stainless steel[J].Nano.Res.Lett.,2012,7:227
[26]Yuan J N,Tsujikawa S.Photo-effects of sol-gel derived Ti O2coating on carbon steel in alkaline solution[J].Zairyo-to-Kankyo,2009,44:534
[27]Ohko Y,Saitoh S,Tatsuma T,et al.Photoelectrochemical anticorrosion and self-cleaning effects of a Ti O2coating for type 304 stainless steel[J].J.Electrochem.Soc.,2001,148:B24
[28]Zhou M J,Zeng Z O,Zhong L.Photogenerated cathode protection properties of nano-sized Ti O2/WO3coating[J].Corros.Sci.,2009,51:1386
[29]Bai X,Li T,Qi Y X,et al.One-step fabricating nitrogen-doped Ti O2nanoparticles coated with carbon to achieve excellent highrate lithium storage performance[J].Electrochim.Acta,2015,187:389
[30]Li J,Lin C J,Lai Y K,et al.Photogenerated cathodic protection of flower-like,nanostructured,N-doped Ti O2film on stainless steel[J].Surf.Coat.Technol.,2010,205:557
[31]Zhang W F,He Y L,Zhang M S,et al.Raman scattering study on anatase Ti O2nanocrystals[J].J.Phys.,2000,33D:912
[32]Wenzel R N.Surface roughness and contact angle[J].J.Phys.Chem.,1948,53:1466