FABRICATION OF CARBON NANOTUBE-DOPED PbO<sub>2</sub> COMPOSITE ELECTRODE AND MECHANISM OF CATALYTIC OXIDATION OF BISPHENOL A

WU Meng-yi; LONG Xin; GAO Cong-hao; QIN Xiao; CHEN Yue; TANG Yu-lin

doi:10.13205/j.hjgc.202104009

Volume 39 Issue 4

Jul. 2021

Turn off MathJax

Article Contents

Article Navigation > ENVIRONMENTAL ENGINEERING > 2021 > 39(4): 50-56,106

WU Meng-yi, LONG Xin, GAO Cong-hao, QIN Xiao, CHEN Yue, TANG Yu-lin. FABRICATION OF CARBON NANOTUBE-DOPED PbO2 COMPOSITE ELECTRODE AND MECHANISM OF CATALYTIC OXIDATION OF BISPHENOL A[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(4): 50-56,106. doi: 10.13205/j.hjgc.202104009

Citation:

WU Meng-yi, LONG Xin, GAO Cong-hao, QIN Xiao, CHEN Yue, TANG Yu-lin. FABRICATION OF CARBON NANOTUBE-DOPED PbO₂ COMPOSITE ELECTRODE AND MECHANISM OF CATALYTIC OXIDATION OF BISPHENOL A[J]. ENVIRONMENTAL ENGINEERING , 2021, 39(4): 50-56,106. doi: 10.13205/j.hjgc.202104009

Citation:

PDF( 3311 KB)

FABRICATION OF CARBON NANOTUBE-DOPED PbO₂ COMPOSITE ELECTRODE AND MECHANISM OF CATALYTIC OXIDATION OF BISPHENOL A

doi: 10.13205/j.hjgc.202104009

1. State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China;
2. National Engineering Research Center for Urban Pollution Control, Tongji University, Shanghai 200092, China;
3. Hebei Construction Group Installation Engineering Co., Ltd, Baoding 071000, China

Received Date: 2020-03-16
Available Online: 2021-07-21

Abstract

Abstract

CNT-PbO₂ composite electrodes with high stability and catalytic activity were obtained by doping carbon nanotubes (CNTs) with different concentrations into PbO₂ electrodes by electrochemical deposition. Scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) analysis proved that CNTs were successfully doped into the PbO₂ electrode surface active layer, leading to a decline of PbO₂ particle size and an increase of activity surface area. The amount of ·OH radicals generated in the degradation system of bisphenol A (BPA) by CNT-PbO₂ electrodes decreased. However, the degradation effect was improved. Cyclic voltammetry (CV) curves and the accelerated life test indicated that the degradation mechanism of BPA was mainly ascribed to the stronger electrochemical direct oxidation ability and higher stability of CNT-PbO₂ composite electrodes. Finally, the dominant by-products were obtained, and plausible degradation pathway of BPA was proposed by UPLC & Q-TOF MS test.
- carbon nanotubes,
- modified PbO₂ electrodes,
- electrocatalytic oxidation,
- bisphenol A,
- degradation mechanism

FullText(HTML)

References(16)

References

[1]	ZHU X P, NI J R, LAI P. Advanced treatment of biologically pretreated coking wastewater by electrochemical oxidation using boron-doped diamond electrodes[J]. Water Research, 2009, 43(17):4347-4355.
[2]	WEI J Z, FENG Y J, SUN X J, et al. Effectiveness and pathways of electrochemical degradation of pretilachlor herbicides[J]. Journal of Hazardous Materials, 2011, 189(1/2):84-91.
[3]	PANIZZA M, CERISOLA G. Influence of anode material on the electrochemical oxidation of 2-naphthol:Part 1. Cyclic voltammetry and potential step experiments[J]. Electrochimica Acta, 2003, 48(23):3491-3497.
[4]	ZHANG C, LIU J H, CHEN B M. Effect of CeO₂ and graphite powder on the electrochemical performance of Ti/PbO₂ anode for zinc electrowinning[J]. Ceramics International, 2018, 44(16):19735-19742.
[5]	AMADELLI R, SAMIOLO L, VELICHENKO A B, et al. Composite PbO₂-TiO₂ materials deposited from colloidal electrolyte:electrosynthesis, and physicochemical properties[J]. Electrochimica Acta, 2009, 54(22):5239-5245.
[6]	ZHANG S, QUAN X, ZHENG J F, et al. Probing the interphase "HO zone" originated by carbon nanotube during catalytic ozonation[J]. Water Research, 2017, 122:86-95.
[7]	DUAN X Y, MA F, YUAN Z X, et al. Lauryl benzene sulfonic acid sodium-carbon nanotube-modified PbO₂ electrode for the degradation of 4-chlorophenol[J]. Electrochimica Acta, 2012, 76:333-343.
[8]	CHANG L M, ZHOU Y, DUAN X Y, et al. Preparation and characterization of carbon nanotube and Bi co-doped PbO₂ electrode[J]. Journal of the Taiwan Institute of Chemical Engineers, 2014, 45(4):1338-1346.
[9]	段小月. 碳纳米管改性PbO₂电极制备及降解水中酚类污染物的研究[D]. 哈尔滨:哈尔滨工业大学, 2013.
[10]	DAI Q Z, XIA Y J, CHEN J M. Mechanism of enhanced electrochemical degradation of highly concentrated aspirin wastewater using a rare earth La-Y co-doped PbO₂ electrode[J]. Electrochimica Acta, 2016, 188:871-881.
[11]	XU F, CHANG L M, DUAN X Y, et al. A novel layer-by-layer CNT/PbO₂ anode for high-efficiency removal of PCP-Na through combining adsorption/electrosorption and electrocatalysis[J]. Electrochimica Acta, 2019, 300:53-66.
[12]	YANG C J, SHEN Q F, ZHAI D C, et al. Carbon nanotubes sheathed in lead for the oxygen evolution in zinc electrowinning[J]. Journal of Applied Electrochemistry, 2019, 49(1):67-77.
[13]	GILROY D. The breakdown of PbO₂-Ti anodes[J]. Journal of Applied Electrochemistry, 1982, 12(2):171-183.
[14]	罗瑶, 薛娟琴, 于丽花, 等. 不同咪唑基离子液体改性PbO₂电极降解苯酚废水[J]. 环境工程学报, 2017, 11(5):2671-2676.
[15]	ZHAN M J, YANG X, XIAN Q M, et al. Photosensitized degradation of bisphenol A involving reactive oxygen species in the presence of humic substances[J]. Chemosphere, 2006, 63(3):378-386.
[16]	POERSCHMANN J, TROMMLER U, GÓRECKI T. Aromatic intermediate formation during oxidative degradation of Bisphenol A by homogeneous sub-stoichiometric Fenton reaction[J]. Chemosphere, 2010, 79(10):975-986.