化工新型材料

化工新型材料 ›› 2019, Vol. 47 ›› Issue (11) : 104-107.

新材料与新技术

可见光响应的TiO₂双层纳米棒阵列制备及其光催化性能研究

^1,2

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Preparation and photocatalytic property of TiO₂ nanorod double layer array with visible light response

Wang Jingyang^1,2, Liang Guijie², Wang Song², Wei Yanfeng¹, Liu Xingchen²

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Received		Published
2019-04-09		2019-11-20
Issue Date	Revised Date
2019-12-04	2019-04-09

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摘要

采用磁控溅射辅助二次水热法,在掺杂氟的SnO₂透明导电玻璃基底上制备出可见光响应的TiO₂双层纳米棒阵列。利用X射线衍射仪(XRD)、场发射电子显微镜(SEM)、紫外-可见-近红外光谱仪(UV-Vis-DRS)、X射线光电子能谱仪(XPS)对样品的晶体结构、微观形貌、光吸收性质及化学组分价态进行了表征;以甲基橙为目标降解物,对样品在可见光下的催化性能进行了研究。结果表明:双层阵列由金红石相TiO₂一维纳米棒构成,溅射沉积的TiO₂纳米颗粒为上层纳米棒阵列生长提供晶种,使其生长更致密;并且由于其内部Ti³⁺和氧空位缺陷态的存在,将阵列的光谱吸收范围拓宽至可见光区域。TiO₂双层纳米棒阵列在可见光照射下对甲基橙的降解率相比纯TiO₂纳米棒阵列提高了67%,表现出良好的光催化性能。

Abstract

TiO₂ nanorod double layer array with visible light response was prepared on F-doped tin oxide (FTO) substrate through a combined hydrothermal and magnetron sputtering method.Crystal structure,surface morphology,optical properties and composition of the samples were determined by using XRD,SEM,UV-Vis DRS and XPS.The photocatalytic properties of the samples were evaluated through photocatalytic degradation of methyl orange under visible light.The results showed that the sample was composed of two layers rutile TiO₂ nanorods,and the TiO₂ nanoparticles deposited by sputtering provided seed for the growth of the second layer nanorods array.Moreover,the Ti³⁺ defects and oxygen vacancy in the TiO₂ nanoparticles,extended the light absorption range of the TiO₂ nanorods to the visible range.The degradation rate of methyl orange by TiO₂ double layer nanorod array was 67% higher than that of pure TiO₂ nanorod array,showing good photocatalytic performance.

关键词

TiO₂纳米棒阵列 / 水热法 / 磁控溅射法 / 光吸收 / 光催化降解

Key words

TiO₂ nanorod array / hydrothermal method / sputtering method / light absorption / photocatalytic degradation

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可见光响应的TiO₂双层纳米棒阵列制备及其光催化性能研究[J]. 化工新型材料, 2019, 47(11): 104-107 DOI:

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参考文献

原文顺序 | 出版日期 | 本文引用

[1] Liu B,Aydil E S.Growth of oriented single-crystalline rutile TiO₂ nanorods on transparent conducting substrates for dyesensitized solar cells[J].Journal of the American Chemical Society,2009,131(11):3985-3990.
[2] Wang H,Bai Y,Zhang H,et al.CdS quantum dots-sensitized TiO₂ nanorod array on transparent conductive glass photoelectrodes[J].The Journal of Physical Chemistry C,2010,114(39):16451-16455.
[3] Cho I S,Chen Z,Forman A J,et al.Branched TiO₂ nanorods for photoelectrochemical hydrogen production[J].Nano Letters,2011,11(11):4978-4984.
[4] Bian H,Ma S,Sun A,et al.Characterization and aceton gas sensing properties of electrospun TiO₂ nanorods[J].Superlattices and Microstructure,2015,81:107-113.
[5] Wang H,Guo Z G,Wang S M,et al.One-dimensional titania nanostructures:synthseis and application in dye-sensitized solar cells[J].Thin Solid Films,2014,558:1-19.
[6] Lv M,Zheng D,Ye M,et al.Optimized porous rutile TiO₂ nanorod arrays for enhancing the efficiency of dye-sensitized solar cells[J].Energy & Environmental Science,2013,6(5):1615-1622.
[7] Liu J,Yu X,Liu Q,et al.Surface-phase junctions of branched TiO₂ nanorod arrays for efficient photoelectrochemical water splitting[J].Applied Catalysis B:Environmental,2014,158(1):296-300.
[8] Park K H,Dhayal M.Simultaneous growth of rutile TiO₂ as 1D/3D nanorod/nanoflower on FTO in one-step process enhances electrochemical response of photoanode in DSSC[J].Electrochemistry Communications,2014,49:47-50.
[9] Li Y M,Guo Y,Li Y H,et al.Fabrication of Cd-doped TiO₂ nanorod arrays and photovoltaic property in perovskite solar cell[J].Electrochimica Acta,2016,200:29-36.
[10] Li W,Yang,J,Zhang J,et al.Improve photovoltaic performance of titanium dioxide nanorods based dye-sensitized solar cells by Ca-doping[J].Materials Research Bulletin,2014,57(23):177-183.
[11] Bang J H,Kamat P.Solar cells by design:photoelectrochemistry of TiO₂ nanorod arrays decorated with CdSe[J].Advanced Functional Materials,2010,20(12):1970-1976.
[12] Mali S S,Shim C S,Kim H,et al.Single step synthesized 1D TiO₂ vertically aligned nanorod arrays for CdS sensitized quantum dot sensitized solar cells[J].Ceramics International,2016,42(1):1973-1981.
[13] 薛丹林,黄金亮,宁向梅,等.水热工艺对TiO₂薄膜形貌结构及光学性能的影响[J].现代化工,2018,38(7):98-102.
[14] Su J,Zou X X,Chen J S.Self-modification of titanium dioxide materials by Ti³⁺ and/or oxygen vacancies:new insights into defect chemistry of metal oxides[J].RSC Advances,2014,4:13979-13988.
[15] 操小鑫,陈亦琳,林碧洲,等.氧缺陷型TiO_2-x可见光催化性能的研究[J].无机材料学报,2012,27(12):1301-1305.
[16] Li K,Huang Z Y,Zeng Z Q,et al.Synergetic effect of Ti³⁺ and oxygen doping on enhancing photoelectrochemical and photocatalytic properties of TiO₂/g-C₃N₄ heterojunctions[J].ACS Applied Materials & Interfaces,2017,9(13):11577-11586.
[17] Fu R R,Wang Q Y,Gao S M,et al.Effect of different processes and Ti/Zn molar ratios on the structure,morphology,and enhanced photoelectrochemical and photocatalytic performance of Ti³⁺ self-doped titanium-zinc hybrid oxides[J].Journal of Power Sources,2015,285:449-459.