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首页> 外文期刊>Journal of Chemical Technology & Biotechnology >Effects of anions on the photocatalytic and photoelectrocatalytic degradation of reactive dye in a packed-bed reactor
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Effects of anions on the photocatalytic and photoelectrocatalytic degradation of reactive dye in a packed-bed reactor

机译：阴离子对填充床反应器中活性染料光催化和光电催化降解的影响

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摘要

The effects of various anions, Cl-, ClO4-, SO42-, NO3-, HCO3-, H2PO4- and C2O42-, on the photocatalytic and photoelectrocatalytic degradation of reactive Brilliant Orange K-R have been investigated in a packed-bed photoelectrocatalytic reactor. It was found that the nature and concentrations of these inorganic anions significantly affected the photocatalytic and photoelectrocatalytic degradation performance of the reactive dye. The results indicated that the external electric field was successfully applied to improve the photocatalytic efficiency of reactive Brilliant Orange K-R in the presence of Cl-, especially at higher concentrations, while other inorganic anions displayed more or less negative effects on the degradation of the dye. The strongest inhibition effect on photocatalytic and photoelectrocatalytic degradation of the dye was observed in the presence of HCO3- ions.(C) 2004 Society of Chemical Industry.
机译：在填充床光电催化反应器中，研究了各种阴离子Cl-，ClO4-，SO42-，NO3-，HCO3-，H2PO4-和C2O42-对活性艳橙K-R的光催化和光电催化降解的影响。已经发现这些无机阴离子的性质和浓度显着影响了活性染料的光催化和光电催化降解性能。结果表明，在Cl-存在下，特别是在较高浓度下，外电场已成功地用于提高活性艳橙K-R的光催化效率，而其他无机阴离子则对染料的降解产生或多或少的负面影响。在存在HCO3-离子的情况下，观察到了对染料的光催化和光电催化降解最强的抑制作用。（C）2004年化学工业学会。

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