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Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co(3)O(4)/n-ZnO Heterostructures
ABSTRACT: In this work, p-Co(3)O(4)/n-ZnO heterostructures were fabricated on Ni substrate by hydrothermal-decomposition method using cobaltous nitrate hexahydrate (Co(NO(3))(2)·6H(2)O) and zinc acetate dihydrate (Zn(CH(3)COO)(2)·2H(2)O) as precursors with zinc acetate concentration varying from 5.0...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer US
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6033848/ https://www.ncbi.nlm.nih.gov/pubmed/29978416 http://dx.doi.org/10.1186/s11671-018-2604-4 |
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author | Xu, Hongyan Shi, Mingliang Liang, Caiqin Wang, Siyan Xia, Chengkai Xue, Chenyang Hai, Zhenyin Zhuiykov, Serge |
author_facet | Xu, Hongyan Shi, Mingliang Liang, Caiqin Wang, Siyan Xia, Chengkai Xue, Chenyang Hai, Zhenyin Zhuiykov, Serge |
author_sort | Xu, Hongyan |
collection | PubMed |
description | ABSTRACT: In this work, p-Co(3)O(4)/n-ZnO heterostructures were fabricated on Ni substrate by hydrothermal-decomposition method using cobaltous nitrate hexahydrate (Co(NO(3))(2)·6H(2)O) and zinc acetate dihydrate (Zn(CH(3)COO)(2)·2H(2)O) as precursors with zinc acetate concentration varying from 5.0 to 55.0 mM. Structure and morphology of the developed samples were characterized by X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM). Effect of zinc acetate concentration on the photocatalytic activity of p-Co(3)O(4)/n-ZnO heterostructures was investigated by degradation of methyl orange (MO) under the UV light irradiation. The fabricated p-Co(3)O(4)/n-ZnO heterostructures exhibited higher photocatalytic activity than pure Co(3)O(4) particles. In order to obtain the maximum photocatalytic activity, zinc acetate concentration was optimized. Specifically, at 35 mM of zinc acetate, the p-Co(3)O(4)/n-ZnO showed the highest photocatalytic activity with the degradation efficiency of MO reaching 89.38% after 72 h irradiation. The improvement of photocatalytic performance of p-Co(3)O(4)/n-ZnO heterostructures is due to the increased concentration of photo-generated holes on Co(3)O(4) surface and the higher surface-to-volume ratio in the hierarchical structure formed by nano-lamellas. GRAPHICAL ABSTRACT: [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s11671-018-2604-4) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-6033848 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Springer US |
record_format | MEDLINE/PubMed |
spelling | pubmed-60338482018-07-24 Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co(3)O(4)/n-ZnO Heterostructures Xu, Hongyan Shi, Mingliang Liang, Caiqin Wang, Siyan Xia, Chengkai Xue, Chenyang Hai, Zhenyin Zhuiykov, Serge Nanoscale Res Lett Nano Express ABSTRACT: In this work, p-Co(3)O(4)/n-ZnO heterostructures were fabricated on Ni substrate by hydrothermal-decomposition method using cobaltous nitrate hexahydrate (Co(NO(3))(2)·6H(2)O) and zinc acetate dihydrate (Zn(CH(3)COO)(2)·2H(2)O) as precursors with zinc acetate concentration varying from 5.0 to 55.0 mM. Structure and morphology of the developed samples were characterized by X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM). Effect of zinc acetate concentration on the photocatalytic activity of p-Co(3)O(4)/n-ZnO heterostructures was investigated by degradation of methyl orange (MO) under the UV light irradiation. The fabricated p-Co(3)O(4)/n-ZnO heterostructures exhibited higher photocatalytic activity than pure Co(3)O(4) particles. In order to obtain the maximum photocatalytic activity, zinc acetate concentration was optimized. Specifically, at 35 mM of zinc acetate, the p-Co(3)O(4)/n-ZnO showed the highest photocatalytic activity with the degradation efficiency of MO reaching 89.38% after 72 h irradiation. The improvement of photocatalytic performance of p-Co(3)O(4)/n-ZnO heterostructures is due to the increased concentration of photo-generated holes on Co(3)O(4) surface and the higher surface-to-volume ratio in the hierarchical structure formed by nano-lamellas. GRAPHICAL ABSTRACT: [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1186/s11671-018-2604-4) contains supplementary material, which is available to authorized users. Springer US 2018-07-05 /pmc/articles/PMC6033848/ /pubmed/29978416 http://dx.doi.org/10.1186/s11671-018-2604-4 Text en © The Author(s). 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Nano Express Xu, Hongyan Shi, Mingliang Liang, Caiqin Wang, Siyan Xia, Chengkai Xue, Chenyang Hai, Zhenyin Zhuiykov, Serge Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co(3)O(4)/n-ZnO Heterostructures |
title | Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co(3)O(4)/n-ZnO Heterostructures |
title_full | Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co(3)O(4)/n-ZnO Heterostructures |
title_fullStr | Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co(3)O(4)/n-ZnO Heterostructures |
title_full_unstemmed | Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co(3)O(4)/n-ZnO Heterostructures |
title_short | Effect of Zinc Acetate Concentration on Optimization of Photocatalytic Activity of p-Co(3)O(4)/n-ZnO Heterostructures |
title_sort | effect of zinc acetate concentration on optimization of photocatalytic activity of p-co(3)o(4)/n-zno heterostructures |
topic | Nano Express |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6033848/ https://www.ncbi.nlm.nih.gov/pubmed/29978416 http://dx.doi.org/10.1186/s11671-018-2604-4 |
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