Synthesis of ZnO Hollow Microspheres and Analysis of Their Gas Sensing Properties for <i>n</i>-Butanol
ZnO hollow microspheres with a diameter of approximately 1.4 μm were successfully synthesized by a facile one-step chemical precipitation method using trisodium citrate dihydrate as a morphology control agent. The ZnO hollow microspheres consisted of nanoplates and had good dispersibility. Control e...
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MDPI AG
2020-11-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/10/11/1010 |
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| author | Shichao Wang Gaoqun Qiao Xiaoyan Chen Xinzhen Wang Hongzhi Cui |
| author_facet | Shichao Wang Gaoqun Qiao Xiaoyan Chen Xinzhen Wang Hongzhi Cui |
| author_sort | Shichao Wang |
| collection | DOAJ |
| description | ZnO hollow microspheres with a diameter of approximately 1.4 μm were successfully synthesized by a facile one-step chemical precipitation method using trisodium citrate dihydrate as a morphology control agent. The ZnO hollow microspheres consisted of nanoplates and had good dispersibility. Control experiments revealed that trisodium citrate dihydrate played an important role in regulating the morphologies of ZnO products. The morphology of the ZnO product evolved from nanowires to hollow microspheres with the addition of trisodium citrate dihydrate. The sensor response of ZnO hollow microspheres toward 100 ppm <i>n</i>-butanol reached 86.6 at the optimum operating temperature of 340 °C, which was approximately three times higher than that of ZnO nanowires. In addition, the ZnO hollow microspheres also displayed good selectivity and long-term work stability toward <i>n</i>-butanol. The excellent gas sensing performance of ZnO hollow microspheres may be ascribed to the unique hollow sphere structure with high exposed polar crystal surface. |
| first_indexed | 2024-03-10T15:03:13Z |
| format | Article |
| id | doaj.art-918a08e6ccb24b1ca1981dbf6df641a7 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T15:03:13Z |
| publishDate | 2020-11-01 |
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| series | Crystals |
| spelling | doaj.art-918a08e6ccb24b1ca1981dbf6df641a72023-11-20T19:58:23ZengMDPI AGCrystals2073-43522020-11-011011101010.3390/cryst10111010Synthesis of ZnO Hollow Microspheres and Analysis of Their Gas Sensing Properties for <i>n</i>-ButanolShichao Wang0Gaoqun Qiao1Xiaoyan Chen2Xinzhen Wang3Hongzhi Cui4School of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaSchool of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaSchool of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaSchool of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaSchool of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao 266590, ChinaZnO hollow microspheres with a diameter of approximately 1.4 μm were successfully synthesized by a facile one-step chemical precipitation method using trisodium citrate dihydrate as a morphology control agent. The ZnO hollow microspheres consisted of nanoplates and had good dispersibility. Control experiments revealed that trisodium citrate dihydrate played an important role in regulating the morphologies of ZnO products. The morphology of the ZnO product evolved from nanowires to hollow microspheres with the addition of trisodium citrate dihydrate. The sensor response of ZnO hollow microspheres toward 100 ppm <i>n</i>-butanol reached 86.6 at the optimum operating temperature of 340 °C, which was approximately three times higher than that of ZnO nanowires. In addition, the ZnO hollow microspheres also displayed good selectivity and long-term work stability toward <i>n</i>-butanol. The excellent gas sensing performance of ZnO hollow microspheres may be ascribed to the unique hollow sphere structure with high exposed polar crystal surface.https://www.mdpi.com/2073-4352/10/11/1010ZnOhollow microspheresgas sensor<i>n</i>-butanol |
| spellingShingle | Shichao Wang Gaoqun Qiao Xiaoyan Chen Xinzhen Wang Hongzhi Cui Synthesis of ZnO Hollow Microspheres and Analysis of Their Gas Sensing Properties for <i>n</i>-Butanol Crystals ZnO hollow microspheres gas sensor <i>n</i>-butanol |
| title | Synthesis of ZnO Hollow Microspheres and Analysis of Their Gas Sensing Properties for <i>n</i>-Butanol |
| title_full | Synthesis of ZnO Hollow Microspheres and Analysis of Their Gas Sensing Properties for <i>n</i>-Butanol |
| title_fullStr | Synthesis of ZnO Hollow Microspheres and Analysis of Their Gas Sensing Properties for <i>n</i>-Butanol |
| title_full_unstemmed | Synthesis of ZnO Hollow Microspheres and Analysis of Their Gas Sensing Properties for <i>n</i>-Butanol |
| title_short | Synthesis of ZnO Hollow Microspheres and Analysis of Their Gas Sensing Properties for <i>n</i>-Butanol |
| title_sort | synthesis of zno hollow microspheres and analysis of their gas sensing properties for i n i butanol |
| topic | ZnO hollow microspheres gas sensor <i>n</i>-butanol |
| url | https://www.mdpi.com/2073-4352/10/11/1010 |
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