高活性钒酸铋的尿素沉淀法控制合成及其光催化活性增强机制研究

doi:10.7517/j.issn.1674-0475.2015.04.336

影像科学与光化学 ›› 2015, Vol. 33 ›› Issue (4): 336-344.DOI: 10.7517/j.issn.1674-0475.2015.04.336

• 应用与发展 • 上一篇

高活性钒酸铋的尿素沉淀法控制合成及其光催化活性增强机制研究

张金秋¹, 张妍¹, 朱玉坤¹, 彭彦华¹, 周晓晨¹, 于建强^1,2

1. 青岛大学化学科学与工程学院山东省海洋生物质纤维材料与纺织协同创新中心, 山东青岛 266071;
2. 中国科学院兰州化学物理研究所清洁能源化学与材料实验室, 甘肃兰州 730000

收稿日期:2014-11-20 修回日期:2015-04-28 出版日期:2015-07-16 发布日期:2015-07-16
通讯作者: 于建强, 张妍
基金资助:
国家自然科学基金项目项目(50878107和41206067)和中国博士后科学基金项目(214M551869)资助

Controllable Synthesis of Highly Active BiVO₄ by Urea Co-precipitation and the Mechanism for Enhanced Photocatalytic Performance

ZHANG Jinqiu¹, ZHANG Yan¹, ZHU Yukun¹, PENG Yanhua¹, ZHOU Xiaochen¹, YU Jianqiang^1,2

1. Collaborative Innovation Center for Marine Biomass Fiber Materials and Textiles of Shandong Province, Faculty of Chemical Science and Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China;
2. Laboratory of Clean Energy Chemistry and Materials, Lanzhou Institute of Chemical Physics, CAS, Lanzhou 730000, Gansu, P. R. China

Received:2014-11-20 Revised:2015-04-28 Online:2015-07-16 Published:2015-07-16

摘要/Abstract

摘要：

通过普通尿素沉淀法、超声协助和水热尿素法合成出高结晶度的单斜晶白钨矿型的钒酸铋粉末。利用XRD、SEM、DRS等手段分别对合成材料的晶型、微观形貌及光物理性质等进行研究。结果表明3种方法均能得到结晶度较高的钒酸铋颗粒,但微观形貌上有较大差异。在可见光下对难生化降解的红色染料FN-3G的降解效果表明,所合成的三种BiVO₄样品的光催化性能均较好,超声协助法和水热法合成的样品光催化活性增强的机制主要归因于结晶度的提高和比表面积的增大。结晶度的提高可降低电子和空穴复合几率,从而增强光电转换效率;而比表面积的增大主要提高了染料分子的吸附能力。

关键词: 钒酸铋, 光催化, 可见光, 超声合成, 均相沉淀

Abstract:

Monoclinic Scheelite BiVO₄ photocatalysts with high crystallinity were synthesized by a homogeneous precipitation method under the assistance of heat, ultrasonic and hydrothermal treatments. The crystal structure, morphology and photophysical property were characterized by XRD, SEM, and DRS techniques, respectively. It demonstrated that BiVO₄ with a high crystallinity can be synthesized by three different processes. However, a great difference can be observed on the micrographic morphology. The photocatalytic performance of these catalysts were evaluated by the decolorization of red dye FN-3G in aqueous solution under visible-light irradiation (λ> 420 nm). All the three samples showed high activity for the dye decomposition. The improved photocatalytic activities of the samples synthesized by the assistance of ultrasonic and hydrothermal treatment are mainly ascribed to the high crystallinity and large surface area. The improvement in the crystallinity can reduce the probability of electron-hole recombination, so as to enhance the photo-to-current conversion efficiency, while the increases in the surface area mainly improve the adsorption capacity of dye molecules.

Key words: BiVO₄, visible-light photocatalysis, supersonic method, homogeneous co-precipitation

张金秋, 张妍, 朱玉坤, 彭彦华, 周晓晨, 于建强. 高活性钒酸铋的尿素沉淀法控制合成及其光催化活性增强机制研究[J]. 影像科学与光化学, 2015, 33(4): 336-344.

ZHANG Jinqiu, ZHANG Yan, ZHU Yukun, PENG Yanhua, ZHOU Xiaochen, YU Jianqiang. Controllable Synthesis of Highly Active BiVO₄ by Urea Co-precipitation and the Mechanism for Enhanced Photocatalytic Performance[J]. Imaging Science and Photochemistry, 2015, 33(4): 336-344.

参考文献

[1] Fujishima A, Honda K. Electrochemical photolysis of water at a semiconductor electrode [J]. Nature, 1972, 238: 37-38.
[2] Linsebigler A L, Lu G Q, Yates J T. Photocatalysis on TiO₂ surfaces: principles, mechanisms, and selected results [J]. Chemical Reviews, 1995, 95(3): 735-758.
[3] Zhang C, Zhu Y F. Synthesis of square Bi₂WO₆ nanoplates as high-activity visible-light-driven photocatalysts [J]. Chemistry of Materials, 2005, 17(13): 3537-3545.
[4] Long M C, Cai W M, Kisch H. Photoelectrochemical properties of nanocrystalline aurivillius phase Bi₂MoO₆ film under visible light irradiation [J]. Chemical Physics Letters, 2008, 461(1-3): 102-105.
[5] Zou Z G, Ye J H, Sayama K, Arakawa H. Direct splitting of water under visible light irradiation with an oxide semiconductor photocatalyst [J]. Nature, 2001, 414(6864): 625-627.
[6] Kudo A, Omorik K, Kato H. A novel aqueous process for preparation of crystal form-controlled and highly crystalline BiVO₄ powder from layered vanadates at room temperature and its photocatalytic and photophysical properties [J]. Journal of the American Chemical Society, 1999, 121(49): 11459-11467.
[7] Bierlein J D, Sleight A W. Ferroelasticity in BiVO₄[J]. Solid State Communications, 1975, 16(1): 69-70.
[8] Long M C, Cai W M, Cai J, Zhou B X, Chai X Y, Wu Y H. Efficient photocatalytic degradation of phenol over Co₃O₄/BiVO₄ composite under visible light irradiation [J]. The Journal of Physical Chemistry B, 2006, 110(41): 20211-20216.
[9] George T, Joseph S, Sunny A T, Mathew S. Visible-light photocatalytic activities of α-AgVO₃ nanorods and BiVO₄ nanobars [J]. International Journal of Nanotechnology, 2011,8(10-12): 963-978.
[10] Zhang L, Chen D R, Jiao X L. Monoclinic structured BiVO₄ nanosheets: hydrothemal preparation, formation mechanism, and coloristic and photocatalytic properties [J]. The Journal of Physical Chemistry B, 2006,110(6): 2668-2673.
[11] Fan H M, Wang D J, Wang L L, Li H Y, Wang P, Jiang T F, Xie T F. Hydrothermal synthesis and photoelectric properties of BiVO₄ with different morphologies: an efficient visible-light photocatalyst [J]. Applied Surface Science, 2011, 257(17): 7758-7762.
[12] Shang M, Wang W Z, Ren J, Sun S M, Zhang L. A novel BiVO₄ hierarchical nanostructure: controllable synthesis, growth mechanism, and application in photocatalysis [J]. Cryst Eng Comm, 2010, 12: 1754-1758.
[13] Sayama K, Nomura A, Zou Z G, Abe R, Abe Y, Arakawa H. Photoelectrochemical decomposition of water on nanocrystalline BiVO₄ film electrodes under visible light [J]. Chemical Communications, 2003, 23: 2908-2909.
[14] Shen S H, Zhao L, Guo L J. Cetyltrimethylammoniumbromide (CTAB)-assisted hydrothermal synthesis of ZnIn₂S₄ as an efficient visible-light-driven photocatalyst for hydrogen production [J]. International Journal of Hydrogen Energy, 2008, 33(17): 4501-4510.
[15] Meng X, Zhang L, Dai H X, Zhao Z X, Zhang R Z, Liu Y X. Surfactant-assisted hydrothermal fabrication and visible-light-driven photocatalytic degradation of methylene blue over multiple morphological BiVO₄ single-crystallites [J]. Materials Chemistry and Physics, 2011, 125(1-2): 59-65.
[16] Jiang H Y, Dai H X, Meng X, Zhang L, Deng J G, Ji K M. Morphology-dependent photocatalytic performance of monoclinic BiVO₄ for methyl orange degradation under visible-light irradiation [J]. Chinese Journal of Catalysis, 2011, 32(6-8): 939 949.
[17] Liu Y Y, Huang B B, Dai Y, Zhang X Y, Qin X Y, Jiang M H, Whangbo M H. Selective ethanol formation from photocatalytic reduction of carbon dioxide in water with BiVO₄ photocatalyst [J]. Catalysis Communications, 2009, 11(3): 210-213.
[18] Sun S M, Wang W Z, Zhou L, Xu H L. Efficient methy-lene blue removal over hydrothermally synthesized starlike BiVO₄ [J]. Industrial & Engineering Chemistry Research, 2009, 48(4): 1735-1739.
[19] García-Pérez U M, Sepúlveda-Guzmán S, Martínez-de la C A. Nanostructured BiVO₄ photocatalysts synthesized via a polymer-assisted coprecipitation method and their photocatalytic properties under visible-light irradiation [J]. Solid State Sciences, 2012, 14(3): 293-298.
[20] Liu J B, Wang H, Wang S, Yan H. Hydrothermal preparation of BiVO₄powders [J]. Materials Science and Engineering: B, 2003, 104(1-2): 36-39.
[21] Yu J Q, Kudo A. Hydrothermal synthesis of nanofibrous bismuth vanadate [J]. Chemistry Letters, 2005, 34(6): 850-851.
[22] Xi G C, Ye J H. Synthesis of bismuth vanadate nanoplates with exposed {001} facets and enhanced visible-light photocatalytic properties [J]. Chemical Communications, 2010, 46: 1893-1895.
[23] Sun Y F, Wu C Z, Long R, Cui Y, Zhang S D, Xie Y. Synthetic loosely packed monoclinic BiVO₄ nanoellipsoids with novel multiresponses to visible light, trace gas and temperature [J]. Chemical Communications, 2009, 30:4542-4544.
[24] Sun Y F, Xie Y, Wu C Z, Long R. First experimental identification of BiVO₄·0.4H₂O and its evolution mechanism to final monoclinic BiVO₄[J]. Crystal Growth & Design, 2010, 10(2): 602-607.
[25] Shang M, Wang W Z, Sun S M, Ren J, Zhou L, Zhang L. Efficient visible light-induced photocatalytic degradation of contaminant by spindle-like PANI/BiVO₄[J]. The Journal of Physical Chemistry C, 2009, 113(47): 20228-20233.
[26] Su J Z, Guo L J, Yoriya S, Grimes C A. Aqueous growth of pyramidal-shaped BiVO₄ nanowire arrays and structural characterization: application to photoelectrochemical water splitting [J]. Crystal Growth & Design, 2010, 10(2): 856-861.
[27] Jiang H Y, Dai H X, Meng X, Zhang L, Deng J G, Liu Y X, Au C T. Hydrothermal fabrication and visible-light-driven photocatalytic properties of bismuth vanadate with multiple morphologies and/or porous structures for methyl orange degradation [J]. Journal of Environmental Sciences, 2010, 24(3): 449-457.
[28] Zhao Y, Xie Y, Zhu X, Yan S, Wang S X. Surfactant-free synthesis of hyperbranched monoclinic bismuth vanadate and its applications in photocatalysis, gas sensing, and lithium-ion batteries [J]. Chemistry-a European Journal, 2008,14(5): 1601-1606.
[29] Kohtani S, Makino S, Kudo A, Tokumura K, Ishigaki Y, Matsunaga T, Nikaido O, Hayakawa K, Nakagaki R. Photocatalytic degradation of 4-n-nonylphenol under irradiation from solar simulator: comparison between BiVO₄ and TiO₂ photocatalysts [J].Chemistry Letters, 2002,31(7): 660-661.
[30] Han M D, Chen X Y, Sun T, Tan O K, Tse M S. Synthesis of mono-dispersed m-BiVO₄octahedral nano-crystals with enhanced visible light photocatalytic properties [J]. Cryst Eng Comm, 2011, 13: 6674-6679.
[31] Geng B Y, Fang C H, Zhan F M, Yu N. Synthesis of polyhedral ZnSnO₃ microcrystals with controlled exposed facets and their selective gas-sensing properties [J]. Small, 2008, 4(9):1337-1343.
[32] Lu W, Yu J Q, Zhang Y, Yu D S, Zhou X C. Synthesis and photocatalytic properties of BiVO₄ by a citric acid complexation process [J]. Rare Metals, 2011,30(4): 203-207.

高活性钒酸铋的尿素沉淀法控制合成及其光催化活性增强机制研究

Controllable Synthesis of Highly Active BiVO₄ by Urea Co-precipitation and the Mechanism for Enhanced Photocatalytic Performance

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	李玥, 李红英, 常玉雪, 周宏艳, 于翔. MoS₂/TiO₂纳米管阵列的一步沉积法制备及光电性能研究[J]. 影像科学与光化学, 2018, 36(4): 331-339.
[2]	李玥, 宋育泽, 陶雁忠, 高风仙, 汤宁. CdS/TiO₂复合纳米网的制备及光催化性能研究[J]. 影像科学与光化学, 2018, 36(3): 275-282.
[3]	李玲, 杜云舒, 王璇, 韩建, 王传义. 甲醛气体在ZnO表面光降解的机理研究[J]. 影像科学与光化学, 2018, 36(2): 171-177.
[4]	吴世康. 光催化中表面等离子体与半导体间的电子转移与能量转移[J]. 影像科学与光化学, 2018, 36(1): 1-13.
[5]	Samuel Lascio, 籍海峰. 磷纳米材料的光学、光电子和光催化应用[J]. 影像科学与光化学, 2017, 35(5): 587-602.
[6]	张庆宝, 刘强. 可见光催化需氧氧化在有机合成中的应用[J]. 影像科学与光化学, 2017, 35(5): 614-625.
[7]	桂梦茜, 俞洋, 朱诚逸, 刘宏芳, 王锋. 基于金属钴配合物的均相光催化还原二氧化碳研究进展[J]. 影像科学与光化学, 2017, 35(5): 649-657.
[8]	彭成云, 陈勇. 苝衍生物光催化氧化硫醚的研究[J]. 影像科学与光化学, 2017, 35(5): 675-685.
[9]	聂坤, 杨汉培, 孙慧华, 崔素珍, 吴俊明. 新型Fe掺杂钙钛矿型KMgF₃光催化剂制备及性能[J]. 影像科学与光化学, 2017, 35(1): 61-69.
[10]	朱哲欣, 叶美英. 光催化微反应器中水样光催化降解及Cd²⁺在线检测[J]. 影像科学与光化学, 2016, 34(5): 444-451.
[11]	张亚婷, 李可可, 任绍昭, 王黛玉, 周安宁, 邱介山. 金属改性煤基石墨烯复合材料的制备及其光催化性能[J]. 影像科学与光化学, 2016, 34(5): 475-481.
[12]	王勐, 夏静, 朱丹丹, 王磊, 孟祥敏. Fe掺杂ZnO空心微球的制备与光催化性能[J]. 影像科学与光化学, 2016, 34(3): 245-251.
[13]	蒋伟, 武祥. ZnS微米花的水热合成及光催化性质研究[J]. 影像科学与光化学, 2016, 34(3): 252-256.
[14]	黄奔, 李玄泽, 王磊, 夏静, 朱丹丹, 孟祥敏. 钼网衬底上大面积硅纳米线的制备及其光催化性能研究[J]. 影像科学与光化学, 2016, 34(3): 257-264.
[15]	王静, 张慧慧, 高雨季, 叶晨, 冯科, 陈彬, 张丽萍, 佟振合, 吴骊珠. 光还原制备石墨烯-硫化钼RGO-MoS_x产氢催化剂[J]. 影像科学与光化学, 2015, 33(6): 461-467.

高活性钒酸铋的尿素沉淀法控制合成及其光催化活性增强机制研究

Controllable Synthesis of Highly Active BiVO4 by Urea Co-precipitation and the Mechanism for Enhanced Photocatalytic Performance

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

Controllable Synthesis of Highly Active BiVO₄ by Urea Co-precipitation and the Mechanism for Enhanced Photocatalytic Performance