Preparation of Ti/TiO2 Nanotube Arrays/PbO2-Pr Electrode and Its Application in Electrocatalytic Degradation of Organic Wastewater

doi:10.11944/j.issn.1000-0518.2018.05.170238

Chinese Journal of Applied Chemistry ›› 2018, Vol. 35 ›› Issue (5): 582-588.DOI: 10.11944/j.issn.1000-0518.2018.05.170238

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Preparation of Ti/TiO₂ Nanotube Arrays/PbO₂-Pr Electrode and Its Application in Electrocatalytic Degradation of Organic Wastewater

MAO Yulu^a,ZHANG Xi^b,XU Mai^b,WANG Fengwu^b^*(),WANG Zhicheng^a,FANG Wenyan^b,WEI Yijun^b,ZHU Chuangao^b

^aSchool of Chemical Engineering,Anhui University of Science and Technology,Huainan,Anhui 232001,China
^bSchool of Chemistry and Chemical Engineering,Huainan Normal University,Huainan,Anhui 232038,China

Received:2017-07-06 Accepted:2017-09-01 Published:2018-04-23 Online:2018-04-23
Contact: WANG Fengwu
Supported by:
Supported by the National Natural Science Foundation of China(No.21176099), the Natural Science Foundation of the Anhui Higher Education Institutions of China(No.KJ2017ZD37, No.KJ2016A670)

Abstract

Abstract:

A novel Ti/TiO₂ nanotube arrays(NTs)/PbO₂-Pr electrode for the degradation of organic wastewater was fabricated by the pulse electrodeposition method. Pr-doped PbO₂ nanoparticles were deposited on the TiO₂ nanotube array substrate. Cyclic voltammetry(CV) and linear sweep voltammetry(LSV) were utilized to study the electrochemical performance of electrodes. The results demonstrate that Ti/TiO₂NTs/nanoPbO₂-Pr electrodes(P) possess excellent electrocatalytic properties. The morphology, crystallinity and elemental composition of Ti/TiO₂NTs/nanoPbO₂-Pr electrodes were characterized by scanning electron microscopy(SEM), X-ray diffraction(XRD), X-ray photoelectron spectroscopy(XPS). The β-PbO₂ nanoparticles are dispersed inside the TiO₂ nanotubes and the doped Pr exists in the form of Pr₂O₃. The degradation of methylene blue was carried out to test electrocatalytic performance of this novel electrode. A 99.8% removal of methylene blue of Ti/TiO₂NTs/nanoPbO₂-Pr electrode within 120 min indicates its good activity.

Key words: TiO₂ nanotube array, pulse electrodeposition, lead dioxide electrode, electrooxidation

MAO Yulu, ZHANG Xi, XU Mai, WANG Fengwu, WANG Zhicheng, FANG Wenyan, WEI Yijun, ZHU Chuangao. Preparation of Ti/TiO₂ Nanotube Arrays/PbO₂-Pr Electrode and Its Application in Electrocatalytic Degradation of Organic Wastewater[J]. Chinese Journal of Applied Chemistry, 2018, 35(5): 582-588.

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Preparation of Ti/TiO₂ Nanotube Arrays/PbO₂-Pr Electrode and Its Application in Electrocatalytic Degradation of Organic Wastewater

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