Microstructures and sensing properties of chemical solution derived low-dimensional TiO2-ZnS semiconductor composites
碩士 === 國立臺灣海洋大學 === 材料工程研究所 === 106 === Abstract Zinc sulfide (ZnS) sphere-decorated titanium dioxide (TiO2) flowers at various ZnS hydrothermal synthesis durations were synthesized using a two-step facile hydrothermal methodology. The ZnS hydrothermal synthesis duration affected the content and dis...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2017
|
Online Access: | http://ndltd.ncl.edu.tw/handle/g5xy3g |
id |
ndltd-TW-106NTOU5159002 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-106NTOU51590022019-05-16T00:15:34Z http://ndltd.ncl.edu.tw/handle/g5xy3g Microstructures and sensing properties of chemical solution derived low-dimensional TiO2-ZnS semiconductor composites 化學溶液合成低維度二氧化鈦-硫化鋅半導體複合材料之微結構與感測特性研究 Wang, Chien-Chung 王建中 碩士 國立臺灣海洋大學 材料工程研究所 106 Abstract Zinc sulfide (ZnS) sphere-decorated titanium dioxide (TiO2) flowers at various ZnS hydrothermal synthesis durations were synthesized using a two-step facile hydrothermal methodology. The ZnS hydrothermal synthesis duration affected the content and distribution of ZnS spheres decorated on the surfaces of TiO2 petals. Thus, the separate and random distribution of these spheres, without considerable aggregation, could be obtained by adequately controlling the ZnS hydrothermal synthesis duration. A structural analysis demonstrated that the as-synthesized ZnS spheres and TiO2 flowers were in crystalline cubic zinc blend and rutile phases, respectively. Moreover, the gas-sensing response of the TiO2 flowers to ethanol vapor markedly enhanced after the decoration of the ZnS spheres. An optimal ZnS hydrothermal synthesis duration of 2 h for the TiO2–ZnS composites was determined to result in the highest gas-sensing response at the given gas-sensing test condition. The strongly favorable ion–species interactions in the gas sensing of ZnS spheres and the formation of TiO2/ZnS heterojunctions in the TiO2–ZnS composites accounted for the enhanced gas-sensing responses of TiO2 flowers decorated with ZnS spheres in this study. Liang, Yuan-Chang 梁元彰 2017 學位論文 ; thesis 75 zh-TW |
collection |
NDLTD |
language |
zh-TW |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 國立臺灣海洋大學 === 材料工程研究所 === 106 === Abstract
Zinc sulfide (ZnS) sphere-decorated titanium dioxide (TiO2) flowers at various ZnS hydrothermal synthesis durations were synthesized using a two-step facile hydrothermal methodology. The ZnS hydrothermal synthesis duration affected the content and distribution of ZnS spheres decorated on the surfaces of TiO2 petals. Thus, the separate and random distribution of these spheres, without considerable aggregation, could be obtained by adequately controlling the ZnS hydrothermal synthesis duration. A structural analysis demonstrated that the as-synthesized ZnS spheres and TiO2 flowers were in crystalline cubic zinc blend and rutile phases, respectively. Moreover, the gas-sensing response of the TiO2 flowers to ethanol vapor markedly enhanced after the decoration of the ZnS spheres. An optimal ZnS hydrothermal synthesis duration of 2 h for the TiO2–ZnS composites was determined to result in the highest gas-sensing response at the given gas-sensing test condition. The strongly favorable ion–species interactions in the gas sensing of ZnS spheres and the formation of TiO2/ZnS heterojunctions in the TiO2–ZnS composites accounted for the enhanced gas-sensing responses of TiO2 flowers decorated with ZnS spheres in this study.
|
author2 |
Liang, Yuan-Chang |
author_facet |
Liang, Yuan-Chang Wang, Chien-Chung 王建中 |
author |
Wang, Chien-Chung 王建中 |
spellingShingle |
Wang, Chien-Chung 王建中 Microstructures and sensing properties of chemical solution derived low-dimensional TiO2-ZnS semiconductor composites |
author_sort |
Wang, Chien-Chung |
title |
Microstructures and sensing properties of chemical solution derived low-dimensional TiO2-ZnS semiconductor composites |
title_short |
Microstructures and sensing properties of chemical solution derived low-dimensional TiO2-ZnS semiconductor composites |
title_full |
Microstructures and sensing properties of chemical solution derived low-dimensional TiO2-ZnS semiconductor composites |
title_fullStr |
Microstructures and sensing properties of chemical solution derived low-dimensional TiO2-ZnS semiconductor composites |
title_full_unstemmed |
Microstructures and sensing properties of chemical solution derived low-dimensional TiO2-ZnS semiconductor composites |
title_sort |
microstructures and sensing properties of chemical solution derived low-dimensional tio2-zns semiconductor composites |
publishDate |
2017 |
url |
http://ndltd.ncl.edu.tw/handle/g5xy3g |
work_keys_str_mv |
AT wangchienchung microstructuresandsensingpropertiesofchemicalsolutionderivedlowdimensionaltio2znssemiconductorcomposites AT wángjiànzhōng microstructuresandsensingpropertiesofchemicalsolutionderivedlowdimensionaltio2znssemiconductorcomposites AT wangchienchung huàxuéróngyèhéchéngdīwéidùèryǎnghuàtàiliúhuàxīnbàndǎotǐfùhécáiliàozhīwēijiégòuyǔgǎncètèxìngyánjiū AT wángjiànzhōng huàxuéróngyèhéchéngdīwéidùèryǎnghuàtàiliúhuàxīnbàndǎotǐfùhécáiliàozhīwēijiégòuyǔgǎncètèxìngyánjiū |
_version_ |
1719163246831730688 |