Photodegradation of Rhodamine B in Fe(III) Solutions

OU Xiao-xia; DENG Li-jun QIN Lei-yun ZUO Qian-qian and CUI Zi-shu

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Photodegradation of Rhodamine B in Fe(III) Solutions

机译：罗丹明B在Fe（III）溶液中的光降解

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The effects of initial pH, Fe3+ and humic acid concentrations on the photodegradation of rhodamine B in Fe3+-containing solutions were studied. The distribution of Fe2+ photoformed in irradiated Fe3+ solution was studied to understand the significance of iron cycling on the removal of rhodamine B. pH has a great influence on the decolorization of dye and the process was most effective when the pH is 3.03. Increasing the dosage of ion (Fe3+) can improve the removal efficiency of rhodamine B. 99.6% of rhodamine B was photodegraded within one hour with a 6 mmol·L–1 of Fe3+. Addition of a certain dose of humic acid can facilitate the degradation of dyes and the photoformation of Fe2+.

机译：研究了初始pH，Fe3 +和腐殖酸浓度对若丹明B在含Fe3 +溶液中光降解的影响。研究了在辐照的Fe3 +溶液中光形成的Fe2 +的分布，以了解铁循环对罗丹明B去除的意义。pH对染料的脱色有很大影响，当pH为3.03时，该过程最有效。增加离子（Fe3 +）的用量可以提高罗丹明B的去除效率。99.6％的若丹明B在6 mmol·L–1的Fe3 +中可在一小时内被光降解。添加一定剂量的腐殖酸可以促进染料的降解和Fe2 +的光形成。

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《Journal of Residuals Science & Technology》 |2017年第0期|共页
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OU Xiao-xia; DENG Li-jun QIN Lei-yun ZUO Qian-qian and CUI Zi-shu;
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Photodegradation of Rhodamine B in Fe(III) Solutions

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