Bi2MoO6@CQDs/TiO2纳米管阵列的制备与光电催化性能

摘要/Abstract

摘要： 为提高TiO₂的可见光光电催化活性,本文用Bi₂MoO₆和碳量子点(CQDs)对TiO₂纳米管阵列(TNA)进行了改性。以CQDs、Bi(NO₃)₃·5H₂O和Na₂MoO₄为原料,通过简单的溶剂热法,在TNA中沉积了CQDs和Bi₂MoO₆,成功制备了新型Bi₂MoO₆@CQDs/TNA。扫描电镜(SEM)和元素mapping分析结果表明,CQDs和Bi₂MoO₆成功涂覆在TNA管壁上。通过在可见光下降解甲基橙(MO)溶液,评价了所制备的光催化剂的光电催化性能。结果显示,经3 h的光电催化降解,Bi₂MoO₆@CQDs/TNA对MO的去除率比Bi₂MoO₆/TNA高32%。CQDs优异的上转换光致发光(UCPL)性能促进了TiO₂在可见光下被激发产生光生载流子,同时Bi₂MoO₆与TiO₂的耦合抑制了光生载流子的复合,从而提高了Bi₂MoO₆@CQDs/TNA的光电催化活性。

关键词: TiO₂纳米管阵列, 碳量子点, Bi₂MoO₆, 可见光, 光电催化, 上转换光致发光

Abstract: In this work, TiO₂ nanotube arrays (TNA) were modified through the incorporation of Bi₂MoO₆ and carbon quantum dots (CQDs), to improve the visible light photocatalytic activity of TiO₂. The CQDs, Bi(NO₃)₃·5H₂O, and Na₂MoO₄ were used as the starting materials, a facile solvothermal method was employed to fabricate the novel Bi₂MoO₆@CQDs/TNA composite through the deposition of CQDs and Bi₂MoO₆ into the TNA. Based on the SEM and elemental mapping results, CQD and Bi₂MoO₆ are successfully coated on the tube wall of TNA. Moreover, the photocatalytic performance of Bi₂MoO₆@CQDs/TNA composite was investigated through the degradation of methyorange (MO) solution under the visible light irradiation. The corresponding photoelelctrocatalytic test results confirm that the as-prepared Bi₂MoO₆@CQDs/TNA exhibits an enhanced photoelectrocatalytic activity. Bi₂MoO₆@CQDs/TNA has a 32% higher removal rate of MO than Bi₂MoO₆/TNA. The enhanced activity can be attributed to the excellent up-conversion photoluminescence (UCPL) of CQDs, promoting TiO₂ to generate photogenerated carriers under the visible light. Meanwhile, the heterojunction between Bi₂MoO₆ and TiO₂ can also effectively inhibit the recombination of photogenerated carriers.

Key words: TiO₂ nanotube arrays, carbon quantum dots, Bi₂MoO₆, visible light, photoelectrocatalytic, up-conversion photoluminescence

中图分类号:

O643

张大龙, 何硕, 林祖祥, 戴高鹏, 刘素芹, 肖作安, 蔡爽. Bi₂MoO₆@CQDs/TiO₂纳米管阵列的制备与光电催化性能[J]. 硅酸盐通报, 2021, 40(12): 4137-4143.

ZHANG Dalong, HE Shuo, LIN Zuxiang, DAI Gaopeng, LIU Suqin, XIAO Zuoan, CAI Shuang. Preparation and Photoelectrocatalytic Perfermance of Bi₂MoO₆@CQDs/TiO₂ Nanotube Arrays[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2021, 40(12): 4137-4143.

参考文献

[1] GE M Z, CAO C Y, HUANG J Y, et al. A review of one-dimensional TiO₂ nanostructured materials for environmental and energy applications[J]. Journal of Materials Chemistry A, 2016, 4(18): 6772-6801.
[2] HUANG J Y, SHEN J L, LI S H, et al. TiO₂ nanotube arrays decorated with Au and Bi₂S₃ nanoparticles for efficient Fe³⁺ ions detection and dye photocatalytic degradation[J]. Journal of Materials Science & Technology, 2020, 39: 28-38.
[3] WANG K F, CHEN Q, HU Y Y, et al. Crystalline Ru_0.33Se nanoparticles-decorated TiO₂ nanotube arrays for enhanced hydrogen evolution reaction[J]. Small, 2018, 14(37): 1802132.
[4] ZHANG Y Y, WU B, TANG Y X, et al. Prolonged electron lifetime in ordered TiO₂ mesophyll cell-like microspheres for efficient photocatalytic water reduction and oxidation[J]. Small, 2016, 12(17): 2291-2299.
[5] ZHU W, LIU Y C, YI A H, et al. Facile fabrication of open-ended TiO₂ nanotube arrays with large area for efficient dye-sensitized solar cells[J]. Electrochimica Acta, 2019, 299: 339-345.
[6] LEE K, MAZARE A, SCHMUKI P. One-dimensional titanium dioxide nanomaterials: nanotubes[J]. Chemical Reviews, 2014, 114(19): 9385-9454.
[7] WANG Q Y, JIN R C, ZHANG M, et al. Solvothermal preparation of Fe-doped TiO₂ nanotube arrays for enhancement in visible light induced photoelectrochemical performance[J]. Journal of Alloys and Compounds, 2017, 690: 139-144.
[8] LUO S Y, YAN B X, SHEN J. Intense photocurrent from Mo-doped TiO₂ film with depletion layer array[J]. ACS Applied Materials & Interfaces, 2014, 6(12): 8942-8946.
[9] WANG T, MENG X G, LIU G G, et al. In situ synthesis of ordered mesoporous Co-doped TiO₂ and its enhanced photocatalytic activity and selectivity for the reduction of CO₂[J]. Journal of Materials Chemistry A, 2015, 3(18): 9491-9501.
[10] ZHANG X L, ZHOU J, GU Y F, et al. Visible-light photocatalytic activity of N-doped TiO₂ Nanotube arrays on acephate degradation[J]. Journal of Nanomaterials, 2015, 2015: 1-6.
[11] ZHOU X S, PENG F, WANG H J, et al. Preparation of B, N-codoped nanotube arrays and their enhanced visible light photoelectrochemical performances[J]. Electrochemistry Communications, 2011, 13(2): 121-124.
[12] PENG X, FU J J, ZHANG X M, et al. Carbon-doped TiO₂ nanotube array platform for visible photocatalysis[J]. Nanoscience and Nanotechnology Letters, 2013, 5(12): 1251-1257.
[13] 杨凌,傅敏,余家燕,等.退火处理对碳氮改性TiO₂光催化性能的影响[J].人工晶体学报,2020,49(2):291-298.
YANG L, FU M, YU J Y, et al. Effect of annealing treatment on photocatalytic activity of carbon nitrogen modified TiO₂[J]. Journal of Synthetic Crystals, 2020, 49(2): 291-298 (in Chinese).
[14] XIE K P, WU Z, WANG M Y, et al. Room temperature synthesis of CdS nanoparticle-decorated TiO₂ nanotube arrays by electrodeposition with improved visible-light photoelectrochemical properties[J]. Electrochemistry Communications, 2016, 63: 56-59.
[15] MOMENI M M, GHAYEB Y, DAVARZADEH M. Single-step electrochemical anodization for synthesis of hierarchical WO₃-TiO₂ nanotube arrays on titanium foil as a good photoanode for water splitting with visible light[J]. Journal of Electroanalytical Chemistry, 2015, 739: 149-155.
[16] 黄奕博,王美涵,文哲,等.纳米结构WO₃/TiO₂复合薄膜的制备及应用进展[J].人工晶体学报,2020,49(1):144-151.
HUANG Y B, WANG M H, WEN Z, et al. Progress on preparation and application of nanostructured WO₃/TiO₂ composite thin films[J]. Journal of Synthetic Crystals, 2020, 49(1): 144-151 (in Chinese).
[17] 孙楠,陈鹏,任有良.AgBr/TiO₂纳米纤维的制备及其光催化性能研究[J].人工晶体学报,2021,50(1):130-137.
SUN N, CHEN P, REN Y L. Preparation and photocatalytic properties of AgBr/TiO₂ nanofibers[J]. Journal of Synthetic Crystals, 2021, 50(1): 130-137 (in Chinese).
[18] HU J, GUAN Z C, LIANG Y, et al. Bi₂S₃ modified single crystalline rutile TiO₂ nanorod array films for photoelectrochemical cathodic protection[J]. Corrosion Science, 2017, 125: 59-67.
[19] WANG H, WEI Z Y, MATSUI H, et al. Fe₃O₄/carbon quantum dots hybrid nanoflowers for highly active and recyclable visible-light driven photocatalyst[J]. Journal of Materials Chemistry A, 2014, 2(38): 15740-15745.
[20] LI H T, KANG Z H, LIU Y, et al. Carbon nanodots: synthesis, properties and applications[J]. Journal of Materials Chemistry, 2012, 22(46): 24230.
[21] DI J, XIA J X, GE Y P, et al. Novel visible-light-driven CQDs/Bi₂WO₆ hybrid materials with enhanced photocatalytic activity toward organic pollutants degradation and mechanism insight[J]. Applied Catalysis B: Environmental, 2015, 168/169: 51-61.
[22] QU A L, XIE H L, XU X M, et al. High quantum yield graphene quantum dots decorated TiO₂ nanotubes for enhancing photocatalytic activity[J]. Applied Surface Science, 2016, 375: 230-241.
[23] HAZARIKA D, KARAK N. Photocatalytic degradation of organic contaminants under solar light using carbon dot/titanium dioxide nanohybrid, obtained through a facile approach[J]. Applied Surface Science, 2016, 376: 276-285.
[24] WANG Q, HUANG J, SUN H, et al. Uniform carbon dots@TiO₂ nanotube arrays with full spectrum wavelength light activation for efficient dye degradation and overall water splitting[J]. Nanoscale, 2017, 9(41): 16046-16058.
[25] YANG L, DU C Y, TAN S Y, et al. Improved photocatalytic properties of Fe(Ⅲ) ion doped Bi₂MoO₆ for the oxidation of organic pollutants[J]. Ceramics International, 2021, 47(4): 5786-5794.
[26] LI J L, LIU X J, PIAO X Q, et al. Novel carbon sphere@Bi₂MoO₆ core-shell structure for efficient visible light photocatalysis[J]. RSC Advances, 2015, 5(21): 16592-16597.
[27] ZHU Y F, ZHANG J, XU L, et al. Fabrication and photoelectrochemical properties of ZnS/Au/TiO₂ nanotube array films[J]. Physical Chemistry Chemical Physics, 2013, 15(11): 4041.
[28] ZHANG M Y, SHAO C L, MU J B, et al. One-dimensional Bi₂MoO₆/TiO₂ hierarchical heterostructures with enhanced photocatalytic activity[J]. CrystEngComm, 2012, 14(2): 605-612.
[29] TIAN J, HAO P, WEI N, et al. 3D Bi₂MoO₆ nanosheet/TiO₂ nanobelt heterostructure: enhanced photocatalytic activities and photoelectochemistry performance[J]. ACS Catalysis, 2015, 5(8): 4530-4536.
[30] YU J G, YU H G, CHENG B, et al. The effect of calcination temperature on the surface microstructure and photocatalytic activity of TiO₂ thin films prepared by liquid phase deposition[J]. The Journal of Physical Chemistry B, 2003, 107(50): 13871-13879.
[31] LI H T, HE X D, KANG Z H, et al. Water-soluble fluorescent carbon quantum dots and photocatalyst design[J]. Angewandte Chemie International Edition, 2010, 49(26): 4430-4434.
[32] YU J G, DAI G P, XIANG Q J, et al. Fabrication and enhanced visible-light photocatalytic activity of carbon self-doped TiO₂sheets with exposed {001} facets[J]. Journal of Materials Chemistry, 2011, 21(4): 1049-1057.

Bi₂MoO₆@CQDs/TiO₂纳米管阵列的制备与光电催化性能

Preparation and Photoelectrocatalytic Perfermance of Bi₂MoO₆@CQDs/TiO₂ Nanotube Arrays

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