Facile Synthesis of Uniform Mesoporous Nb<sub>2</sub>O<sub>5</sub> Micro-Flowers for Enhancing Photodegradation of Methyl Orange
The removal of organic pollutants using green environmental photocatalytic degradation techniques urgently need high-performance catalysts. In this work, a facile one-step hydrothermal technique has been successfully applied to synthesize a Nb<sub>2</sub>O<sub>5</sub> photoca...
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| author | Jian-Ping Qiu Huan-Qing Xie Ya-Hao Wang Lan Yu Fang-Yuan Wang Han-Song Chen Zheng-Xin Fei Chao-Qun Bian Hui Mao Jia-Biao Lian |
| author_facet | Jian-Ping Qiu Huan-Qing Xie Ya-Hao Wang Lan Yu Fang-Yuan Wang Han-Song Chen Zheng-Xin Fei Chao-Qun Bian Hui Mao Jia-Biao Lian |
| author_sort | Jian-Ping Qiu |
| collection | DOAJ |
| description | The removal of organic pollutants using green environmental photocatalytic degradation techniques urgently need high-performance catalysts. In this work, a facile one-step hydrothermal technique has been successfully applied to synthesize a Nb<sub>2</sub>O<sub>5</sub> photocatalyst with uniform micro-flower structure for the degradation of methyl orange (MO) under UV irradiation. These nanocatalysts are characterized by transmission and scanning electron microscopies (TEM and SEM), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) method, and UV-Vis diffuse reflectance spectroscopy (DRS). It is found that the prepared Nb<sub>2</sub>O<sub>5</sub> micro-flowers presents a good crystal phases and consist of 3D hierarchical nanosheets with 400–500 nm in diameter. The surface area is as large as 48.6 m<sup>2</sup> g<sup>−1</sup>. Importantly, the Nb<sub>2</sub>O<sub>5</sub> micro-flowers exhibit superior catalytic activity up to 99.9% for the photodegradation of MO within 20 mins, which is about 60-fold and 4-fold larger than that of without catalysts (W/O) and commercial TiO<sub>2</sub> (P25) sample, respectively. This excellent performance may be attributed to 3D porous structure with abundant catalytic active sites. |
| first_indexed | 2024-03-10T09:34:05Z |
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| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T09:34:05Z |
| publishDate | 2021-07-01 |
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| spelling | doaj.art-1adc92d016ec48aaa788768104dcccbf2023-11-22T04:14:38ZengMDPI AGMaterials1996-19442021-07-011414378310.3390/ma14143783Facile Synthesis of Uniform Mesoporous Nb<sub>2</sub>O<sub>5</sub> Micro-Flowers for Enhancing Photodegradation of Methyl OrangeJian-Ping Qiu0Huan-Qing Xie1Ya-Hao Wang2Lan Yu3Fang-Yuan Wang4Han-Song Chen5Zheng-Xin Fei6Chao-Qun Bian7Hui Mao8Jia-Biao Lian9Xingzhi College, College of Geography and Environmental Sciences, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, ChinaXingzhi College, College of Geography and Environmental Sciences, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, ChinaXingzhi College, College of Geography and Environmental Sciences, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, ChinaCollege of Pharmaceutics, Jinhua Polytechnic, Jinhua 321007, ChinaXingzhi College, College of Geography and Environmental Sciences, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, ChinaXingzhi College, College of Geography and Environmental Sciences, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, ChinaCollege of Pharmaceutics, Jinhua Polytechnic, Jinhua 321007, ChinaCollege of Pharmaceutics, Jinhua Polytechnic, Jinhua 321007, ChinaCollege of Pharmaceutics, Jinhua Polytechnic, Jinhua 321007, ChinaInstitute for Energy Research, Jiangsu University, Zhenjiang 212013, ChinaThe removal of organic pollutants using green environmental photocatalytic degradation techniques urgently need high-performance catalysts. In this work, a facile one-step hydrothermal technique has been successfully applied to synthesize a Nb<sub>2</sub>O<sub>5</sub> photocatalyst with uniform micro-flower structure for the degradation of methyl orange (MO) under UV irradiation. These nanocatalysts are characterized by transmission and scanning electron microscopies (TEM and SEM), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) method, and UV-Vis diffuse reflectance spectroscopy (DRS). It is found that the prepared Nb<sub>2</sub>O<sub>5</sub> micro-flowers presents a good crystal phases and consist of 3D hierarchical nanosheets with 400–500 nm in diameter. The surface area is as large as 48.6 m<sup>2</sup> g<sup>−1</sup>. Importantly, the Nb<sub>2</sub>O<sub>5</sub> micro-flowers exhibit superior catalytic activity up to 99.9% for the photodegradation of MO within 20 mins, which is about 60-fold and 4-fold larger than that of without catalysts (W/O) and commercial TiO<sub>2</sub> (P25) sample, respectively. This excellent performance may be attributed to 3D porous structure with abundant catalytic active sites.https://www.mdpi.com/1996-1944/14/14/3783photocatalysisNb<sub>2</sub>O<sub>5</sub> micro-flowershydrothermal synthesismethyl orange |
| spellingShingle | Jian-Ping Qiu Huan-Qing Xie Ya-Hao Wang Lan Yu Fang-Yuan Wang Han-Song Chen Zheng-Xin Fei Chao-Qun Bian Hui Mao Jia-Biao Lian Facile Synthesis of Uniform Mesoporous Nb<sub>2</sub>O<sub>5</sub> Micro-Flowers for Enhancing Photodegradation of Methyl Orange Materials photocatalysis Nb<sub>2</sub>O<sub>5</sub> micro-flowers hydrothermal synthesis methyl orange |
| title | Facile Synthesis of Uniform Mesoporous Nb<sub>2</sub>O<sub>5</sub> Micro-Flowers for Enhancing Photodegradation of Methyl Orange |
| title_full | Facile Synthesis of Uniform Mesoporous Nb<sub>2</sub>O<sub>5</sub> Micro-Flowers for Enhancing Photodegradation of Methyl Orange |
| title_fullStr | Facile Synthesis of Uniform Mesoporous Nb<sub>2</sub>O<sub>5</sub> Micro-Flowers for Enhancing Photodegradation of Methyl Orange |
| title_full_unstemmed | Facile Synthesis of Uniform Mesoporous Nb<sub>2</sub>O<sub>5</sub> Micro-Flowers for Enhancing Photodegradation of Methyl Orange |
| title_short | Facile Synthesis of Uniform Mesoporous Nb<sub>2</sub>O<sub>5</sub> Micro-Flowers for Enhancing Photodegradation of Methyl Orange |
| title_sort | facile synthesis of uniform mesoporous nb sub 2 sub o sub 5 sub micro flowers for enhancing photodegradation of methyl orange |
| topic | photocatalysis Nb<sub>2</sub>O<sub>5</sub> micro-flowers hydrothermal synthesis methyl orange |
| url | https://www.mdpi.com/1996-1944/14/14/3783 |
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