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就質(zhì)量作用定律的表達(dá)形式,表面絡(luò)合只是比液相內(nèi)的絡(luò)合作用多了一個(gè)靜電項(xiàng)e-ZFФ/RT,式中Ks為表觀常數(shù),Kint為表面電荷為0時(shí)的固有表面常數(shù),Ф為表面電位,Z為離子電荷,F(xiàn)為法拉第常數(shù),R為氣體常數(shù),T為絕對(duì)溫度。在陶瓷膜的機(jī)理研究中,本研究注意到有必要使用表面絡(luò)合物的相關(guān)研究方法。Mg2+在水溶液中可能發(fā)生如下反應(yīng):Mg2++OH- Mg(OH) 。 Mg2+可與介質(zhì)水中的OH-形成Mg(OH)+,帶正電的Mg2+(H2O等可通過水合物的形式以靜電方式吸附在帶負(fù)電的ZrO2納米涂層表面。 |
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翻譯成英文 ZrO2表面的羥基可與被吸附的水合鎂離子等形成內(nèi)表面絡(luò)合物。可將ZrO2納米晶表面作為一種聚合酸,表面羥基可以發(fā)生質(zhì)子遷移,表面金屬離子可以作為Lewis酸,而表面羥基脫去質(zhì)子后可作為Lewis堿與溶液中的金屬離子或配體發(fā)生表面絡(luò)合反應(yīng),這與溶液中絡(luò)合反應(yīng)十分類似,區(qū)別在于表面反應(yīng)要考慮界面電荷的作用[5]。就質(zhì)量作用定律的表達(dá)形式,表面絡(luò)合只是比液相內(nèi)的絡(luò)合作用多了一個(gè)靜電項(xiàng)e-ZFФ/RT,Ks=Kint e-ZFФ/RT,式中Ks為表觀常數(shù),Kint為表面電荷為0時(shí)的固有表面常數(shù),Ф為表面電位,Z為離子電荷,F(xiàn)為法拉第常數(shù),R為氣體常數(shù),T為絕對(duì)溫度。在陶瓷膜的機(jī)理研究中,本研究注意到有必要使用表面絡(luò)合物的相關(guān)研究方法。Mg2+在水溶液中可能發(fā)生如下反應(yīng):Mg2++OH- Mg(OH)+ lgK2.8;2Mg2++OH- Mg2(OH)3+ lgK-0.3;Mg2++2OH- Mg(OH)2(s) lgK11.5。 Mg2+可與介質(zhì)水中的OH-形成Mg(OH)+、Mg(OH)2、[Mg-OH-Mg]3+ [6],帶正電的Mg2+(H2O)、Mg(OH)+和Mg2(OH)3+等可通過水合物的形式以靜電方式吸附在帶負(fù)電的ZrO2納米涂層表面。 |
| As referring to the law of mass action, surface complexation is no more than an electrostatic item e-ZFФ/RT in comparison with inter-liquid complexation, where Ks is the apparent constant, Kint is the inherent surface constantfor when the surface charge is 0, Ф is the surface potential, Z is the ionic charge, F is Faraday constant, R is the gas constant, T is the absolute temperature. |
| As referring to the law of mass action, surface complexation is no more than an electrostatic item e-ZFФ/RT in comparison with inter-liquid complexation, where Ks is the apparent constant, Kint is the inherent surface constantfor when the surface charge is 0, Ф is the surface potential, Z is the ionic charge, F is Faraday constant, R is the gas constant, and T is the absolute temperature. |
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The quality of expressions, role law than liquid surface complexation just inside the complexation many a static item e - government Ф/RT, type of Ks for apparent constants, Kint for surface charge is 0, the inherent surface constants Ф for surface potential, Z for ion charge, F to Faraday constants, R for gas constant, T for absolute temperature. In the research of the mechanism of ceramic membrane, this study noted the need to use a surface complex related research methods. Mg2 + in aqueous solution possible following response: Mg2 + + OH - Mg (OH). Mg2 + can and medium water OH - develop Mg (OH) +, positively charged Mg2 + (H2O etc. Can be in the form of electrostatic by hydrates way adsorption in the negatively charged of ZrO2 nano coating surface |
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