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有色金属工程:2019,9(10):-
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纳米TiO2三维电极光电协同降解苯酚溶液研究
侯治威1, 周 军2, 吴 雷1, 梁 坤2, 宋永辉2, 张秋利2
(1.西安建筑科技大学冶金工程学院;2.西安建筑科技大学化学与化工学院)
Study on Synergetic-Photoelectrocatalytic Degradation of Phenol by Nano-TiO2 Three-Dimensional Electrode
HOU Zhiwei1, ZHOU Jun2, WU Lei1, LIANG Kun2, SONG Yonghui2, ZHANG Qiuli2
(1.School of Metallurgical Engineering,Xi’an University of Architecture and Technology,Xi’an;2.School of Chemistry and Chemical Engineering,Xi’an University of Architecture and Technology,Xi’an)
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投稿时间:2018-04-27    修订日期:2019-01-08
中文摘要: 以0.25wt%的氢氟酸溶液为电解液,采用阳极氧化法在纯钛板上制备出高度均匀、排列整齐、管径约为80~100nm的钛基锐钛矿型二氧化钛纳米管。用该二氧化钛纳米管、石墨和活性炭颗粒作为三维电极材料,外加紫外光条件下对苯酚溶液进行了光电协同降解实验研究;分别考察了外加电压、降解时间、电解质浓度和粒子电极添加量等对溶液中苯酚降解率的影响。结果表明:当紫外光强度为28mW/cm2、Na2SO4电解质浓度为0.15mol/L、活性炭粒子电极添加量为8g、外加电压为16V、降解时间为3h时,10mg/L的苯酚溶液中苯酚降解率最高可达93.83%。
中文关键词: 三维电极  纳米TiO2  光电协同  降解
Abstract:Using 0.25% hydrofluoric acid solution as electrolyte, anatase titanium dioxide nanotubes with high uniformity, well-arranged, and diameter of about 80~100 nm were prepared on pure titanium plates by anodic oxidation. The synergetic-photoelectricatalytic degradation experiments of phenol solution were carried out under the three-dimensional electrodes irradiated with ultraviolet light intensity, which composed of the titanium dioxide nanotubes, graphite and activated carbon particles. The influence of factors such as the applied voltage, degradation time, electrolyte concentration and addition amount of particle electrode on phenol degradation rate in the solution was investigated respectively. The results showed that under optimized conditions of ultraviolet light intensity of 28 mW/cm2, Na2SO4 concentration of 0.15mol/L, particle electrode addition amount of 8g, the applied voltage of 16V and degradation time of 3h, the degradation rate of phenol solution with the concentration of 10mg/L was up to 93.83%.
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基金项目:(51774277); 陕西省自然科学基础研究计划重大基础研究项目(2017ZDJC-33); 陕西省教育厅重点科研计划项目(16JS052)
引用文本:
侯治威,周 军,吴 雷,梁 坤,宋永辉,张秋利.纳米TiO2三维电极光电协同降解苯酚溶液研究[J].有色金属工程,2019,9(10):.

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