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哈尔滨工业大学 材料科学与工程学院, 黑龙江 哈尔滨 150001
纸质出版日期:2019-5-5,
网络出版日期:2018-8-30,
收稿日期:2018-5-21,
修回日期:2018-8-4,
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姜雁博, 矫淑杰, 高世勇等. 立方纳米结构ZnGa<sub>2</sub>O<sub>4</sub>的制备及光催化性质[J]. 发光学报, 2019,40(5): 602-609
JIANG Yan-bo, JIAO Shu-jie, GAO Shi-yong etc. Synthesis and Photocatalytic Activity of ZnGa<sub>2</sub>O<sub>4</sub> Nanocubes[J]. Chinese Journal of Luminescence, 2019,40(5): 602-609
姜雁博, 矫淑杰, 高世勇等. 立方纳米结构ZnGa<sub>2</sub>O<sub>4</sub>的制备及光催化性质[J]. 发光学报, 2019,40(5): 602-609 DOI: 10.3788/fgxb20194005.0602.
JIANG Yan-bo, JIAO Shu-jie, GAO Shi-yong etc. Synthesis and Photocatalytic Activity of ZnGa<sub>2</sub>O<sub>4</sub> Nanocubes[J]. Chinese Journal of Luminescence, 2019,40(5): 602-609 DOI: 10.3788/fgxb20194005.0602.
首先采用水热法在FTO衬底上制备出-GaOOH纳米柱阵列,再以-GaOOH纳米柱/FTO结构作为前驱体进行水热反应,经溶解再结晶过程,-GaOOH纳米柱可转变为边长约为500 nm的ZnGa
2
O
4
纳米立方块。在模拟太阳光源辐照下的一系列光催化实验结果表明:样品对亚甲基蓝具有较强的吸附作用和较高的光催化活性,对罗丹明B、刚果红的吸附能力和光催化作用都很弱,对甲基橙只有较弱的光催化作用;H
2
O
2
可以作为电子捕捉剂和供氧剂,促进样品的导带电子参与活性自由基的形成,使样品对染料表现出持续较高的光催化活性。
-GaOOH nanorod arrays on FTO substrates are synthesized by a simple hydrothermal method for the first time
which can be used as a precursor and converted
via
hydrothermal reaction into ZnGa
2
O
4
nanocubes due to a dissolution-recrystallization process. The characterization results of samples indicate that as-prepared ZnGa
2
O
4
on FTO belongs to cubic system and has the cubic morpohology with the size of about 500 nm. A series of photocatalytic experiments have been performed under simulated sunlight irradiation and the results indicate that ZnGa
2
O
4
nanocubes show both enhanced adsorption and photocatalytic abilities for methylene blue compared with rhodamine B and congo red
and only show weak photocatalytic activity for methyl orange. As electron scavenger and oxygen provider
H
2
O
2
can facilitate the formation of free radicals with high chemical reactivity and make as-prepared samples possess continuous and enhanced photocatalytic activity of dyes.
&alpha-GaOOH纳米柱ZnGa2O4纳米立方块水热法光催化
&alpha-GaOOH nanorodZnGa2O4 nanocubeshydrothermal methodphotocatalysis
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