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Ti/PbO2-Sm2O3 composite based electrode for highly efficient electrocatalytic degradation of alizarin yellow R.
J Colloid Interface Sci. 2019 Jan 01; 533:750-761.JC

Abstract

In this work, a novel Ti/PbO2-Sm2O3 composite electrode with high electrocatalytic activity is successfully fabricated via simple electrodeposition method and further investigated for electrochemical degradation of alizarin yellow R (AYR) wastewater. The test results of X-ray diffraction, field-emission scanning electron microscopy and energy-dispersive X-ray spectroscopy confirm that Sm2O3 is successfully composited with PbO2. The coating of Ti/PbO2-Sm2O3 composite electrode stacked by typical pyramid-like micro-particles exhibits smooth and compact surface morphology which is conducive to enhancing the corrosion resistance of electrode. Furthermore, electrochemical performance tests indicate that Ti/PbO2-Sm2O3 composite electrode has advantages of higher oxygen evolution potential, lower charge transfer resistance and longer lifetime over Ti/PbO2 electrode. Electrolyte concentration, plate space, initial pH and cell voltage are assessed to optimize the degradation condition of AYR. The results show that COD removal efficiency and degradation efficiency of AYR on Ti/PbO2-Sm2O3 composite electrode reach up to 79.90% and 80.00% under the optimal conditions (Na2SO4 electrolyte concentration 9.0 g L-1, plate space 3.0 cm, initial pH 5, cell voltage 3.0 V and electrolysis time 150 min), respectively. The degradation of AYR follows pseudo-first-order reaction kinetics, and a plausible mineralization pathway of AYR is proposed on the basis of the identification of major intermediate products. These results suggest that Ti/PbO2-Sm2O3 composite electrode is a promising candidate for electrocatalytic degradation of AYR wastewater.

Authors+Show Affiliations

State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China; Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, PR China; National Engineering Research Center for Municipal Wastewater Treatment and Reuse, Mianyang 621000, PR China.State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China. Electronic address: 49416151@qq.com.State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China.State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China.State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China.State Key Laboratory of Environment-friendly Energy Materials, School of Materials Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, PR China.Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, PR China; National Engineering Research Center for Municipal Wastewater Treatment and Reuse, Mianyang 621000, PR China.Key Laboratory of Solid Waste Treatment and Resource Recycle of Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, PR China. Electronic address: fqdong@swust.edu.cn.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30199831

Citation

Zhang, Ying, et al. "Ti/PbO2-Sm2O3 Composite Based Electrode for Highly Efficient Electrocatalytic Degradation of Alizarin Yellow R." Journal of Colloid and Interface Science, vol. 533, 2019, pp. 750-761.
Zhang Y, He P, Jia L, et al. Ti/PbO2-Sm2O3 composite based electrode for highly efficient electrocatalytic degradation of alizarin yellow R. J Colloid Interface Sci. 2019;533:750-761.
Zhang, Y., He, P., Jia, L., Li, C., Liu, H., Wang, S., Zhou, S., & Dong, F. (2019). Ti/PbO2-Sm2O3 composite based electrode for highly efficient electrocatalytic degradation of alizarin yellow R. Journal of Colloid and Interface Science, 533, 750-761. https://doi.org/10.1016/j.jcis.2018.09.003
Zhang Y, et al. Ti/PbO2-Sm2O3 Composite Based Electrode for Highly Efficient Electrocatalytic Degradation of Alizarin Yellow R. J Colloid Interface Sci. 2019 Jan 1;533:750-761. PubMed PMID: 30199831.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ti/PbO2-Sm2O3 composite based electrode for highly efficient electrocatalytic degradation of alizarin yellow R. AU - Zhang,Ying, AU - He,Ping, AU - Jia,Lingpu, AU - Li,Caixia, AU - Liu,Huanhuan, AU - Wang,Shuai, AU - Zhou,Shiping, AU - Dong,Faqin, Y1 - 2018/09/04/ PY - 2018/06/16/received PY - 2018/08/15/revised PY - 2018/09/02/accepted PY - 2018/9/11/pubmed PY - 2018/9/11/medline PY - 2018/9/11/entrez KW - Alizarin yellow R wastewater KW - Degradation KW - Electrocatalysis KW - Ti/PbO(2)-Sm(2)O(3) composite electrode SP - 750 EP - 761 JF - Journal of colloid and interface science JO - J Colloid Interface Sci VL - 533 N2 - In this work, a novel Ti/PbO2-Sm2O3 composite electrode with high electrocatalytic activity is successfully fabricated via simple electrodeposition method and further investigated for electrochemical degradation of alizarin yellow R (AYR) wastewater. The test results of X-ray diffraction, field-emission scanning electron microscopy and energy-dispersive X-ray spectroscopy confirm that Sm2O3 is successfully composited with PbO2. The coating of Ti/PbO2-Sm2O3 composite electrode stacked by typical pyramid-like micro-particles exhibits smooth and compact surface morphology which is conducive to enhancing the corrosion resistance of electrode. Furthermore, electrochemical performance tests indicate that Ti/PbO2-Sm2O3 composite electrode has advantages of higher oxygen evolution potential, lower charge transfer resistance and longer lifetime over Ti/PbO2 electrode. Electrolyte concentration, plate space, initial pH and cell voltage are assessed to optimize the degradation condition of AYR. The results show that COD removal efficiency and degradation efficiency of AYR on Ti/PbO2-Sm2O3 composite electrode reach up to 79.90% and 80.00% under the optimal conditions (Na2SO4 electrolyte concentration 9.0 g L-1, plate space 3.0 cm, initial pH 5, cell voltage 3.0 V and electrolysis time 150 min), respectively. The degradation of AYR follows pseudo-first-order reaction kinetics, and a plausible mineralization pathway of AYR is proposed on the basis of the identification of major intermediate products. These results suggest that Ti/PbO2-Sm2O3 composite electrode is a promising candidate for electrocatalytic degradation of AYR wastewater. SN - 1095-7103 UR - https://www.unboundmedicine.com/medline/citation/30199831/Ti/PbO2_Sm2O3_composite_based_electrode_for_highly_efficient_electrocatalytic_degradation_of_alizarin_yellow_R_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0021-9797(18)31044-0 DB - PRIME DP - Unbound Medicine ER -
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