当前位置: X-MOL 学术J. Flow Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Electro-oxidation of 2-chlorophenol with BDD electrodes in a continuous flow electrochemical reactor
Journal of Flow Chemistry ( IF 2.7 ) Pub Date : 2020-02-05 , DOI: 10.1007/s41981-020-00079-5
E. Peralta-Reyes , R. Natividad , M. Castellanos , J. Mentado-Morales , M. E. Cordero , D. Amado-Piña , A. Regalado-Méndez

Synthetic solutions of 2-chlorophenol (2-CP, 1 mM) were treated in an undivided continuous flow electrochemical reactor equipped with boron-doped diamond (BDD) electrodes. The process was conducted at different current densities (j = 0.10, 0.125, and 0.14 A cm−2), initial pH (4.0, 7.3, and 9.0), and volumetric flow rate (Q = 0.5, 1.0, and 1.5 L min−1). The results of this study showed that the best operational conditions were: j = 0.14 A cm−2, pH = 7.3, and y Q = 1 L min−1. Under these operational conditions the degradation and mineralization of 2-CP were, 100% and 96%, respectively, after 6 h of electrolysis time. The by-products were identified by UHPLC. Also, it was found that the electrochemical degradation of 2-chlorophenol follows a pseudo-first order kinetics. Furthermore, these results demonstrate that the electrolysis process employed in this work allows high percentages (96%) of mineralization of 2-CP, a relative low treatment cost ($ 3 MXN/ 2.5 L of synthetic solution), and that the process is applicable to remediate wastewater.



中文翻译:

在连续流电化学反应器中2-氯苯酚与BDD电极的电氧化

2-氯苯酚(2-CP,1 mM)的合成溶液在配有硼掺杂金刚石(BDD)电极的不间断连续流电化学反应器中进行处理。该工艺在不同的电流密度(传导Ĵ  = 0.10,0.125和0.14厘米-2),初始pH(4.0,7.3和9.0),和体积流率(Q  = 0.5,1.0,以及1.5升分钟- 1)。这项研究的结果表明,最佳操作条件为:j  = 0.14 A cm -2,pH = 7.3,y Q  = 1 L min -1。在这些操作条件下,电解6小时后,2-CP的降解和矿化分别为100%和96%。通过UHPLC鉴定副产物。另外,还发现2-氯苯酚的电化学降解遵循拟一级反应动力学。此外,这些结果表明,这项工作所采用的电解工艺可以使2-CP的矿化率很高(96%),处理成本相对较低(3 MXN / 2.5 L合成溶液),并且该工艺是适用的修复废水。

更新日期:2020-02-05
down
wechat
bug