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| 查看: 1967 | 回復(fù): 8 | ||
| 本帖產(chǎn)生 1 個 翻譯EPI ，點擊這里進行查看 | ||
| 當(dāng)前只顯示滿足指定條件的回帖，點擊這里查看本話題的所有回帖 | ||
NY_sky捐助貴賓 (著名寫手)
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[求助]
一段話，中譯英。請高手指點，散金幣
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| 中文：與單獨吸附TC不同的是，在酸性條件下協(xié)同吸附的TC吸附量較低，且隨著pH的增加其顯著增加，在pH 6.5時達到峰值，隨著pH進一步增加至堿性時，吸附量下降。與單獨吸附Zn2+相比，TC的存在對Zn2+的吸附影響不大。上述結(jié)果可歸因于水溶液中配合物（TC-Zn2+）的形成或者表面橋聯(lián)（TC-或Zn2+）的作用，在酸性條件下H3O+會競爭吸附位點，使吸附不明顯。隨著pH增至6.0，對吸附的促進作用明顯增強，Zn2+和TC的吸附量均達到峰值。pH進一步達到堿性時，Zn2+和TC的親和力減弱，由于其脫質(zhì)子的影響，靜電斥力的作用使TC和Zn2+的吸附量顯著下降[25]。因此，在協(xié)同吸附Zn2+和TC的實驗中，最適pH值為6.0。 |
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【答案】應(yīng)助回帖
★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ...
NY_sky: 金幣+200, 翻譯EPI+1, ★★★★★最佳答案 2019-10-17 20:22:48
NY_sky: 金幣+200, 翻譯EPI+1, ★★★★★最佳答案 2019-10-17 20:22:48
| Different from the adsorption of TC alone, the adsorption of TC by synergistic adsorption under acidic conditions was low. It increased significantly with the increase of pH, peaked when the pH was 6.5, and decreased when pH further increased to the alkaline range. Compared with the adsorption of Zn2+ alone, the presence of TC has little effect on the adsorption of Zn2+. The above results can be attributed to the formation of complexes (TC-Zn2+) in aqueous solution or the impact of surface bridging (TC- or Zn2+). Under acidic conditions, H3O+ will compete for adsorption sites, so the adsorption is not obvious. As the pH increased to 6.0, the promotion effect of adsorption was significantly enhanced, and the adsorption of Zn2+ and TC peaked. When the pH was further alkaline, the affinity between Zn2+ and TC was weakened. Due to the influence of deprotonation, the electrostatic repulsion significantly reduced the adsorption of TC and Zn2+ [25]. Therefore, in the experiments of synergistic adsorption of Zn2+ and TC, the optimum pH was 6.0. |
8樓2019-10-15 16:16:13
x愛上在路上
鐵桿木蟲 (著名寫手)
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2樓2019-10-03 22:20:48
送紅花一朵
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3樓2019-10-04 09:51:18
原始森琳
鐵桿木蟲 (正式寫手)
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4樓2019-10-04 10:30:32
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