SiQDs-SiO2@VO2复合微球的制备与表征

杨文童, 刘乐, 黄小玲, 邓青盛, 于德宇, 张洪文, 姜彦*

化工新型材料 ›› 2025, Vol. 53 ›› Issue (4) : 170 -174.

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化工新型材料 ›› 2025, Vol. 53 ›› Issue (4) : 170-174. DOI: 10.19817/j.cnki.issn1006-3536.2025.04.040
科学研究

SiQDs-SiO2@VO2复合微球的制备与表征

    杨文童, 刘乐, 黄小玲, 邓青盛, 于德宇, 张洪文, 姜彦*
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Preparation and characterization of SiQDs-SiO2@VO2 composite microspheres

  • Yang Wentong, Liu Le, Huang Xiaoling, Deng Qingsheng, Yu Deyu, Zhang Hongwen, Jiang Yan
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摘要

使用马弗炉煅烧尿素制备了石墨相氮化碳(g-C3N4),对硅量子点(SiQDs)进行复合改性,从而获得良好的光催化性能。把复合后的SiQDs填充进树枝状SiO2微球表面的大量孔隙中,制备出SiQDs-SiO2复合微球。通过与普通SiO2微球的对比发现,树枝状的多孔隙结构可以负载更多的SiQDs。通过罗丹明B催化分解实验证实制得的复合微球具有良好的光催化性能。最后在其表面包裹一层VO2,制备出SiQDs-SiO2@VO2复合微球,结果表明VO2具有着良好的红外反射性能。

Abstract

Graphite-phase carbon nitride (g-C3N4) was prepared by calcining urea in a muffle furnace,and used to modify SiQDs to achieve good photocatalytic properties.SiQDs-SiO2 composite microspheres were prepared by filling the composite SiQDs into a large number of pores on the surface of dendritic silica microspheres.Comparison with ordinary silica microspheres showed that the dendritic porous structure could be loaded with more SiQDs.The excellent photocatalytic performance of the composite microspheres was confirmed by the catalytic decomposition of Rhodamine B.Finally,a layer of VO2 was coated on the surface to prepare SiQDs-SiO2@VO2 composite microspheres,and the experimental results indicated that VO2 had good infrared reflecting properties.

关键词

硅量子点 / 氮化碳 / 光催化 / 近红外反射

Key words

silicon quantum dots / carbon nitride / photocatalysis / near infrared reflection

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引用格式 ▾
SiQDs-SiO2@VO2复合微球的制备与表征[J]. 化工新型材料, 2025, 53(4): 170-174 DOI:10.19817/j.cnki.issn1006-3536.2025.04.040

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参考文献

[1] Liu F Y,Zhang T K,Zhao Y L,et al.Electrochemiluminescence of 1,8-naphthalimide-modified carbon nitride for Cu2+/detection[J].Journal of Analysis and Testing,2022,6:296-307.
[2] Toshali B,Jin D K,Moses B A,et al.Accelerating NADH oxidation and hydrogen production with mid-gap states of nitrogen-rich carbon nitride photocatalyst[J].iScience,2022,25(12):105567.
[3] Gelloz B,Juangsa F B,Nozaki T,et al.Si/SiO2 ocre/shell luminescent silicon nanocrystals and porous silicon powders with high quantum yield,long lifetime,and good stability[J].Frontiers in Physics,2019,7:47.
[4] Peng F,Su Y Y,Zhong Y L,et al.Silicon nanomaterials platform for bioimaging,biosensing,and cancer therapy[J].Accounts of Chemical Research,2014,47(2):612-623.
[5] Ye Hongli,Cai Shijiao,Li Si,et al.One-pot microwave synthesis of water-idspersible,high fluorescence silicon nanoparticles and their imaging applications in vitro and in vivo[J].Analytical Chemistry,2016,88(23):11631-11638.
[6] Jiang C,Zhang M,Hou Y.Thin-film composite membrane with porous interlayer composed of dendritic mesoporous silica nanoparticles for enhanced nanofiltration[J].Polymers,2023,15(19):3912.
[7] Dong Kangfeng,Wu Shaolong,Chang Baisong,et al.Zero-valent iron supported by dendritic mesoporous silica nanoparticles to purify dye wastewater[J].Journal of Environmental Chemical Engineering,2023,11(5):110434.
[8] Wang Zhongbao,Ma Yanli,Li Ming,et al.A thermal-switchable metamaterial absorber based on the phase-change material of vanadium dioxide[J].Nanomaterials,2022,12(17):3000.
[9] Cao Y,Sheng L,Cheng J,et al.Dynamically tunable photonic spin Hall effect based on insulating-metallic phase transition of vanadium dioxide[J].Optics and Laser Technology,2024,174:110583.
[10] Vu Tuan Duc,Xie Hong,Wang Shancheng,et al.Durable vanadium dioxide with 33-year service life for smart windows applications[J].Materials Today Energy,2022,26:100978.
[11] Zhu Zhouzhou,Zhu Kezhen,Guo Jianhui,et al.Preparation and durability evaluation of vanadium dioxide intelligent thermal insulation films[J].Colloid and Interface Science Communications,2022,48:100619.
[12] Jung Kwang Hoon,Yun Sun Jin,Slusar Tetiana,et al.Highly transparent ultrathin vanadium dioxide films with temperature-dependent infrared reflectance for smart windows[J].Applied Surface Science,2022,589:152962.
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