溶剂热法制备Ag/TiO2纳米材料及其光催化性能

doi:10.3866/PKU.WHXB20100815

物理化学学报 >> 2010, Vol. 26 >> Issue (08): 2261-2266.doi: 10.3866/PKU.WHXB20100815

溶剂热法制备Ag/TiO2纳米材料及其光催化性能

许平昌¹, 柳阳¹, 魏建红^1,2, 熊锐¹, 潘春旭¹, 石兢¹

1. 武汉大学物理科学与技术学院, 人工微结构教育部重点实验室, 武汉 430072;
2. 低维材料与技术教育部重点实验室(湘潭大学), 湖南湘潭 411105

收稿日期:2010-03-08 修回日期:2010-04-19 发布日期:2010-07-23
通讯作者: 魏建红 E-mail:jhwei@whu.edu.cn
基金资助:
国家重点基础研究发展规划项目(973)(2009CB939704), 国家自然科学基金(10974148)和低维材料与技术教育部重点实验室(湘潭大学)开放基金(DWKF0806)资助

Solvothermal Preparation of Ag/TiO₂ Nanoparticles and Their Photocatalytic Activity

XU Ping-Chang¹, LIU Yang¹, WEI Jian-Hong^1,2, XIONG Rui¹, PAN Chun-Xu¹, SHI Jing¹

1. Key Laboratory of Artificial Micro-and Nano-Structures, Ministry of Education, School of Physics Science and Technology, Wuhan University, Wuhan 430072, P. R. China;
2. Key Laboratory of Low Dimensional Materials and Application Technology (Xiangtan University), Ministry of Education, Xiangtan 411105, Hunan Province, P.R. China

Received:2010-03-08 Revised:2010-04-19 Published:2010-07-23
Contact: WEI Jian-Hong E-mail:jhwei@whu.edu.cn
Supported by:
The project was supported by the National Key Basic Research Program of China (973) (2009CB939704), National Natural Science Foundation of China (10974148) and the Open Project Program of Low Dimensional Materials and Application Technology (Xiangtan University), Ministry of Education of China (DWKF0806).

摘要/Abstract

摘要：

以乙醇为溶剂, 钛酸四丁酯为前驱体, 用溶剂热法制备了Ag表面修饰的负载型纳米二氧化钛光催化剂. 利用X射线衍射(XRD)、N₂吸附-脱附(BET)、透射电子显微镜(TEM)、X射线光电子能谱(XPS)、紫外-可见(UV-Vis)光谱等技术对其进行了系统的表征, 以亚甲基蓝(MB)溶液的脱色降解为模型反应, 考察了不同Ag含量样品的光催化性能. 结果表明: 用溶剂热法制备的样品中TiO₂皆为锐钛矿相, 金属Ag颗粒沉积在TiO₂表面, 粒径为2 nm左右, 比表面积较溶胶凝胶法制备的样品大大增加, 最高可达151.44 m²·g^-1; UV-Vis光谱和光催化实验表明: Ag修饰使TiO₂对光的吸收能力大大增强, 吸收带边红移至可见光区, 亚甲基蓝在该复合材料上的光催化降解反应遵循一级反应动力学模型; 溶剂热法制备样品的光催化性能明显好于溶胶凝胶法制备的样品, 在紫外光和可见光下, Ag摩尔分数为5%的样品表现出最佳的光催化活性.

关键词: 二氧化钛, 银修饰, 溶剂热法, 溶胶凝胶法, 亚甲基蓝, 光催化

Abstract:

Visible-light photoactive Ag/TiO2 catalysts were successfully prepared by a solvothermal method. The samples were characterized by X-ray diffraction (XRD), N₂ adsorption-desorption isotherm (BET), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and UV-visible (UV-Vis) spectroscopy. The photodegradation of methylene blue (MB) solution was used to evaluate the photocatalytic activity of the catalyst under UV and visible light irradiation (λ>400 nm). XRD results showed that the TiO₂ was in the pure anatase phase. Ag nanoparticles were loaded onto the TiO₂ nanoparticle surface and this had little influence on the crystal phase and the particle size of TiO₂. The specific surface area of the samples was far higher than that for the samples prepared by the sol-gel method and the sample with Ag molar fraction of 5% had the highest value of 151.44 m²·g^-1. The absorption spectrum of the Ag-modified TiO₂ increased greatly and the adsorption edge was extended into the visible region. The photodegradation of MB solution followed a pseudo-first-order kinetic expression. The photocatalytic activities of the Ag/TiO₂ composites prepared by the solvothermal method were remarkably higher than those prepared by the sol-gel method. Under UV or visible light irradiation, the optimal photoactivity was obtained for the sample with a Ag molar fraction of 5%.

Key words: Titania, Silver-modified, Solvothermal method, Sol-gel method, Methylene blue, Photocatalysis

MSC2000:

O643

许平昌, 柳阳, 魏建红, 熊锐, 潘春旭, 石兢. 溶剂热法制备Ag/TiO2纳米材料及其光催化性能[J]. 物理化学学报, 2010, 26(08): 2261-2266.

XU Ping-Chang, LIU Yang, WEI Jian-Hong, XIONG Rui, PAN Chun-Xu, SHI Jing. Solvothermal Preparation of Ag/TiO₂ Nanoparticles and Their Photocatalytic Activity[J]. Acta Phys. -Chim. Sin., 2010, 26(08): 2261-2266.

参考文献

[1]. Lee, S. H.; Kang, M.; Cho, S. M.; Han, G. Y.; Kim, B. W.; Yoon, K. J.; Chung, C. H. J. Photochem. Photobiol. A, 2001, 146: 121
[2]. Kim, C. S.; Moon, B. K.; Park, J. H.; Chung, S. T.; Son, S. M. J. Cryst. Growth, 2003, 254: 405
[3]. Wu, J. J.; Lü, X. J.; Zhang, L. L.; Huang, F. Q.; Xu, F. F. Eur. J. Inorg. Chem., 2009: 2789
[4]. Kolenko, Y. V.; Burukhin, A. A.; Churagulov, B. R.; Oleynikov, N. N. Mater. Lett., 2003, 57: 1124
[5]. Fujishima, A.; Rao, T. N.; Tryk, D. A. J. Photochem. Photobiol. C- Photochem. Rev., 2000, 1: 1
[6]. Yamashita, H.; Harada, M.; Misaka, J.; Takeuchi, M.; Ikeue, K.; Anpo, M. J. Photochem. Photobiol. A-Chem., 2002, 148: 257
[7]. Chen, X. B.; Mao, S. S. Chem. Rev., 2007, 107: 2891
[8]. Im, J. S.; Yun, S. M.; Lee, Y. S. J. Colloid Interface Sci., 2009, 336: 183
[9]. Yu, A. M.; Wu, G. J.; Yan, J. J.; Zheng, C. M.; Zhang, F. X.; Yang, Y. L.; Guan, N. J. Chin. J. Catal., 2009, 30(2):137. [于爱敏, 武光军, 严晶晶, 郑春明, 章福祥, 杨雅莉, 关乃佳. 催化学报, 2009, 30(2): 137]
[10]. Zhao, Q. H.; Quan, X. J.; Tan, H. Q.; Sang, X. M. Chin. J. Catal., 2008, 29(3):269. [赵清华, 全学军, 谭怀琴, 桑雪梅. 催化学报, 2008, 29(3): 269]
[11]. Siemon, U.; Bahnemann, D.; Testa, J. J.; Rodriguez, D.; Litter, M. I.; Bruno, N. J. Photochem. Photobiol. A-Chem., 2002, 148: 247
[12]. Navio, J. A.; Testa, J. J.; Djedjeian, P.; Padron, J. R.; Rodriguez, D.; Litter, M. I. Appl. Catal. A, 1999, 178: 191
[13]. Pal, B.; Ikeda, S.; Kominami, H.; Kera, Y.; Ohtani, B. J. Catal., 2003, 217: 152
[14]. Kryukova, G. N.; Zenkovets, G. A.; Shutilov, A. A.; Wilde, M.; Gunther, K.; Fassler, D.; Richter, K. Appl. Catal. B, 2007, 71: 169
[15]. Xia, X. H.; Gao, Y.; Wang, Z.; Jia, Z. J. J. Phys. Chem. Solids, 2008, 69: 2888
[16]. Silva, A. M. T.; Silva, C. G.; Drazic, G.; Faria, J. L. Catal. Today, 2009, 144: 13
[17]. Su, B. T.; Sun, J. X.; Hu, C. L.; Zhang, X. H.; Fei, P.; Lei, Z. Q. Acta Phys. -Chim. Sin., 2009, 25(8):1561. [苏碧桃, 孙佳星, 胡常林, 张小红, 费鹏, 雷自强. 物理化学学报, 2009, 25(8): 1561]
[18]. Cheng, G.; Zhou, X. D.; Li, Y.; Tong, P. R.; Wang, L. M. Chin. J. Catal, 2007, 28(10):885. [程刚, 周孝德, 李艳, 仝攀瑞, 王理明. 催化学报, 2007, 28(10): 885]
[19]. Kandiel, T. A.; Dillert, R.; Bahnemann, D. W. Photochem. Photobiol. Sci., 2009, 8: 683
[20]. Jiang, D.; Xu, Y.; Hou, B.; Wu, D.; Sun, Y. H. Acta Chim. Sin., 2007, 65(14):1289. [姜东, 徐耀, 侯博, 吴东, 孙予罕. 化学学报, 2007, 65(14): 1289]
[21]. Binitha, N. N.; Yaakob, Z.; Reshmi, M. R.; Sugunan, S.; Ambili, V. K.; Zetty, A. A. Catal. Today, 2009, 147S: S76
[22]. You, X. F.; Chen, F.; Zhang, J. L.; Huang, J. Z.; Zhang, L. Z. Chin. J. Catal., 2006, 27(3):270. [尤先锋, 陈锋, 张金龙, 黄家桢, 张利中. 催化学报, 2006, 27(3): 270]
[23]. Mei, F.; Liu, C.; Zhang, L.; Ren, F.; Zhou, L.; Zhao, W. K.; Fang, Y. L. J. Cryst. Growth, 2006, 292: 87
[24]. Li, F. B.; Li, X. Z.; Hou, M. F. Appl. Catal. B, 2004, 48: 185
[25]. Zhang, H. J.; Chen, G. H. Environ. Sci. Technol., 2009, 43: 2905
[26]. Kuo, Y. L.; Chen, H. W.; Ku, Y. Thin Solid Films, 2007, 515: 3461
[27]. Wei, F. Y.; Ni, L. S. Chin. J. Catal., 2007, 28(10):905. [魏凤玉, 倪良锁. 催化学报, 2007, 28(10): 905]
[28]. Arabatzis, I. M.; Stergiopoulos, T.; Bernard, M. C.; Labou, D.; Neophytides, S. G.; Falaras, P. Appl. Catal. B, 2003, 42: 187
[29]. Wiley, B.; Sun, Y.; Mayers, B.; Xia, Y. Chem. Eur. J., 2005, 11: 454
[30]. Liu, Y.; Liu, C. Y.; Zhang, Z. Y. Acta Chim. Sin., 2000, 58(4): 397 [刘云, 刘春艳, 张志颖. 化学学报, 2000, 58(4): 397]
[31]. Shan, Z. C.; Wu, J. J.; Xu, F. F.; Huang, F. Q.; Ding, H. M. J. Phys. Chem. C, 2008, 112: 15423
[32]. You, X. F.; Chen, F.; Zhang, J. L.; Anpo, M. Catal. Lett., 2005, 102: 247
[33]. Xiao, Y.; Dang, L. Q.; An, L. Z.; Bai, S. Y.; Lei, Z. B. Chin. J. Catal., 2008, 29(1):31. [肖义, 党利琴, 安丽珍, 白士英, 雷志斌. 催化学报, 2008, 29(1): 31]

溶剂热法制备Ag/TiO2纳米材料及其光催化性能

Solvothermal Preparation of Ag/TiO₂ Nanoparticles and Their Photocatalytic Activity

PDF

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

推荐阅读 0

[1]	熊壮, 侯乙东, 员汝胜, 丁正新, 王伟俊, 汪思波. 空心NiCo₂S₄纳米球助催化剂担载ZnIn₂S₄纳米片用于可见光催化制氢[J]. 物理化学学报, 2022, 38(7): 2111021 - .
[2]	雷卓楠, 马心怡, 胡晓云, 樊君, 刘恩周. Ni₂P-NiS双助剂促进g-C₃N₄光催化产氢动力学[J]. 物理化学学报, 2022, 38(7): 2110049 - .
[3]	黄悦, 梅飞飞, 张金锋, 代凯, Graham Dawson. 一维/二维W₁₈O₄₉/多孔g-C₃N₄梯形异质结构建及其光催化析氢性能研究[J]. 物理化学学报, 2022, 38(7): 2108028 - .
[4]	韩高伟, 徐飞燕, 程蓓, 李佑稷, 余家国, 张留洋. 反蛋白石结构ZnO@PDA用于增强光催化产H₂O₂性能[J]. 物理化学学报, 2022, 38(7): 2112037 - .
[5]	周亮, 李云锋, 张永康, 秋列维, 邢艳. 具有高效界面电荷转移的0D/2D Bi₄V₂O₁₁/g-C₃N₄梯形异质结的设计合成及抗生素降解性能研究[J]. 物理化学学报, 2022, 38(7): 2112027 - .
[6]	王文亮, 张灏纯, 陈义钢, 史海峰. 具有光催化与光芬顿反应协同作用的2D/2D α-Fe₂O₃/g-C₃N₄ S型异质结用于高效降解四环素[J]. 物理化学学报, 2022, 38(7): 2201008 - .
[7]	刘珊池, 王凯, 杨梦雪, 靳治良. Mn_0.2Cd_0.8S@CoAl LDH S-型异质结构建及其光催化析氢性能研究[J]. 物理化学学报, 2022, 38(7): 2109023 - .
[8]	沈荣晨, 郝磊, 陈晴, 郑巧清, 张鹏, 李鑫. 高分散Co_0.2Ni_1.6Fe_0.2P助催化剂改性P掺杂g-C₃N₄纳米片高效光催化析氢的研究[J]. 物理化学学报, 2022, 38(7): 2110014 - .
[9]	赵娜, 彭静, 王建平, 翟茂林. 羧酸根功能化的PVP-CdS同质结及其高效的光催化析氢性能[J]. 物理化学学报, 2022, 38(4): 2004046 - .
[10]	李红英, 龚海明, 靳治良. In₂O₃修饰三维纳米花MoS_x构建S型异质结用于高效光催化产氢[J]. 物理化学学报, 2022, 38(12): 2201037 - .
[11]	何科林, 沈荣晨, 郝磊, 李佑稷, 张鹏, 江吉周, 李鑫. 纳米SiC基光催化剂研究进展[J]. 物理化学学报, 2022, 38(11): 2201021 - .
[12]	杜忆忱, 张壮壮, 徐一帆, 包建春, 周小四. 金属硫化物基钾离子电池负极：储存机制和合成策略[J]. 物理化学学报, 2022, 38(11): 2205017 - .
[13]	李开宁, 张梦曦, 欧小雨, 李睿娜, 李覃, 范佳杰, 吕康乐. 高活性氮化碳纳米片的制备策略[J]. 物理化学学报, 2021, 37(8): 2008010 - .
[14]	周易, 欧阳威龙, 王岳军, 王海强, 吴忠标. 核壳结构NH₂-UiO-66@TiO₂的制备及其可见光下的甲苯降解性能研究[J]. 物理化学学报, 2021, 37(8): 2009045 - .
[15]	陈鹏, 周莹, 董帆. 二维光催化材料电子结构和性能调控策略研究进展[J]. 物理化学学报, 2021, 37(8): 2010010 - .

溶剂热法制备Ag/TiO2纳米材料及其光催化性能

Solvothermal Preparation of Ag/TiO2 Nanoparticles and Their Photocatalytic Activity

PDF

赞

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

Metrics

推荐阅读 0

Solvothermal Preparation of Ag/TiO₂ Nanoparticles and Their Photocatalytic Activity