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首页> 外文期刊>ChemElectroChem >Effective Removal and Mineralization of 8-Hydroxyquinoline-5-sulfonic Acid through a Pressurized Electro-Fenton-like Process with Ni-Cu-Al Layered Double Hydroxide
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Effective Removal and Mineralization of 8-Hydroxyquinoline-5-sulfonic Acid through a Pressurized Electro-Fenton-like Process with Ni-Cu-Al Layered Double Hydroxide

机译：通过用Ni-Cu-Al层层双氢氧化物的加压电芬恒法加压和矿化通过加压电芬恒法，用加压的电芬恒法矿化和矿化

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摘要

Ni-Cu-Al layered double hydroxide (Ni-Cu-Al LDH) was proposed as an electro-Fenton-like catalyst for 8-hydroxyquinoline-5-sulfonic acid (8-HQS) removal in water. The properties of the prepared catalysts were characterized by using X-ray, SEM and EDAX analyses. The effect of numerous operative parameters on the removal of 8-HQS and total organic carbon (TOC) was studied. Very high level removal of both 8-HQS and TOC (87 and 79 %, respectively) were obtained by using a pressurized electro-Fenton-like process (PrEFL-LDH) atP=10 bars, using a Ti/IrO2-Ta(2)O(5)anode for 6 h. The process presented good performances in a large range of pH (3-10) and gave better removals of 8-HQS and TOC with respect to that achieved by bothi)EF catalyzed by homogeneous (FeSO4) or natural heterogeneous catalysts (pyrite and chalcopyrite) andii)anodic oxidation at a boron doped diamond anode. Ni-Cu-Al LDH retained its catalytic activity after four cycles. Moreover, the carboxylic acid intermediates were identified and analyzed by HPLC.
机译：提出了Ni-Cu-Al层状双氢氧化物（Ni-Cu-Al LDH）作为用于8-羟基喹啉-5-磺酸（8-HQS）除去水的电芬丁基催化剂。通过使用X射线，SEM和edax分析来表征制备的催化剂的性质。研究了许多手术参数对去除8-HQ和总有机碳（TOC）的影响。使用Ti / IRO2-TA（2 ）O（5）阳极6小时。该方法在大量pH（3-10）中呈现出良好的性能，并以均相（FesO 4）或天然异质催化剂（黄铁矿和黄铜矿）催化的两种催化而更好地去除8-HQS和TOC。 Andii）硼掺杂金刚石阳极处的阳极氧化。 Ni-Cu-Al LDH在四个循环后保留其催化活性。此外，通过HPLC鉴定并分析羧酸中间体。

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