Synthesis of Ag/N-TiO2/SBA-15 Photocatalysts and Photocatalytic Reduction of CO2 under Visible Light Irradiation

doi:10.6023/A14070535

Acta Chimica Sinica ›› 2014, Vol. 72 ›› Issue (10): 1092-1098.DOI: 10.6023/A14070535 Previous Articles Next Articles

Article

Ag/N-TiO₂/SBA-15光催化剂的制备及其可见光催化还原CO₂

高梦语^a,b, 姜东^a, 孙德魁^a, 侯博^a, 李德宝^a

a 中国科学院山西煤炭化学研究所煤转化国家重点实验室太原 030001;
b 中国科学院大学北京 100049

投稿日期:2014-07-17 修回日期:2014-09-24 发布日期:2014-09-24
通讯作者: 姜东 E-mail:jdred@sxicc.ac.cn
基金资助:
项目受国家自然科学基金(No. 21003150)、山西省自然科学基金(No. 2011011006-2)和煤转化国家重点实验室自主研究项目(No. 2011BWZ011)资助.

Synthesis of Ag/N-TiO₂/SBA-15 Photocatalysts and Photocatalytic Reduction of CO₂ under Visible Light Irradiation

Gao Mengyu^a,b, Jiang Dong^a, Sun Dekui^a, Hou Bo^a, Li Debao^a

a State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001;
b University of Chinese Academy of Sciences, Beijing 100049

Received:2014-07-17 Revised:2014-09-24 Published:2014-09-24
Supported by:
Project supported by the National Natural Science Foundation of China (No. 21003150), the Natural Science Foundation of Shanxi Province (No. 2011011006-2) and Independent Research Foundation of the State Key Laboratory of Coal Conversion (No. 2011BWZ011).

Silver-loaded together with nitrogen-doped highly dispersed TiO₂/SBA-15 mesoporous catalysts were successfully synthesized through solvothermal treatment and calcination method by using titanium n-butoxide (TB), carboxylate-modified SBA-15 (COOH/SBA-15), urea and silver nitrate as raw materials. The detailed preparation procedure was as follows: 1.0 g COOH/SBA-15 powder was dispersed in solution containing 0.82 mL titanium n-butoxide (TB) and 20.0 mL acetic ether. The mixture was stirred for 30 min at room temperature, then 0.031 g AgNO₃ was added into the solution by further stirring for 30 min and a certain amount of urea was added. After being stirred continuously for 3 h, the resultant solution was transferred into a teflon-lined stainless autoclave and solvothermally treated at 220 ℃ for 12 h. After naturally cooling to room temperature, the resultant product was washed three times with absolute ethanol and then dried under vacuum at 80 ℃ for 12 h. Finally the solids were calcined in air at 550 ℃ for 4 h at a heating rate of 1.5 ℃/min. The prepared samples were characterized by X-ray diffraction (XRD), N₂ adsorption-desorption, X-ray photoelectron spectrum (XPS), transmission electron microscopy (TEM), UV-Visible diffuse reflectance spectroscopy (UV-vis DRS), photoluminescence spectra (PL), inductively coupled plasma atomic emission spectrum (ICP) and elemental analysis (EA). It was revealed that the highly dispersed samples consist of anatase crystalline phase were mesoporous structure. The anatase phase was retained without phase change after silver loading and nitrogen doping. Silver was deposited on the surface of catalysts in the form of metallic silver and served as an effective electron trapper which could prevent the fast recombination of the photo-generated electrons and holes, at the same time, visible light absorption of samples were enhanced by silver nanoparticle based on its surface plasmon resonance effect. Nitrogen was doped into TiO₂ matrix in the form of both interstitial nitrogen and substitutional nitrogen, nitrogen dopants might be presented in the chemical environment of Ti-O-N and O-Ti-N. On one hand, nitrogen doping could extend the adsorption of catalysts to the visible light region (λ>400 nm); on the other hand, appropriate amount of nitrogen doping could inhibit the recombination of the photo-generated charge carriers and increase the efficiency of the photocurrent carriers. The high photocatalytic performance could be attributed to the synergistic effect of nitrogen doping and the loaded silver nanoparticles over TiO₂. The nitrogen doping concentration had an optimal value. When the loading amount of Ag was 2 wt% and the theoretical mole ratio of nitrogen to Ti was 3, the photocatalyst had the highest photocatalytic activity. The methanol yield was 45.7 μmol·g^-1·h^-1.

Key words: titanium dioxide, carboxyl-modified SBA-15, Ag loading, N doping, visible light, photocatalytic reduction of CO₂

Cite this article

Gao Mengyu, Jiang Dong, Sun Dekui, Hou Bo, Li Debao. Synthesis of Ag/N-TiO₂/SBA-15 Photocatalysts and Photocatalytic Reduction of CO₂ under Visible Light Irradiation[J]. Acta Chimica Sinica, 2014, 72(10): 1092-1098.

Export EndNote|Reference Manager|ProCite|BibTeX|RefWorks

share this article

References

[1] Liu, Y. Q.; Xu, Y.; Li, Z. J.; Zhang, X. P.; Wu, D.; Sun, Y. H. Acta Chim. Sinica 2006, 64, 453. (刘亚琴, 徐耀, 李志杰, 张秀萍, 吴东, 孙予罕, 化学学报, 2006, 64, 453.)
[2] Ko?í, K.; Obalová, L.; Lacný, Z. Chem. Pap. 2008, 62, 1.
[3] Wang, H. X.; Jiang, D.; Wu, D.; Li, D. B.; Sun, Y. H. Acta Chim. Sinica 2012, 70, 2412. (王会香, 姜东, 吴东, 李德宝, 孙予罕, 化学学报, 2012, 70, 2412.)
[4] Metz, B.; Davidson, O.; Coninck, H. D.; Loos, M.; Meyer, L. Carbon Dioxide Capture and Storage, Cambridge University Press, UK, 2005, p. 105.
[5] Inoue, T.; Fujishima, A.; Konishi, S.; Honda, K. Nature 1979, 277, 637.
[6] Liu, G.; Hoivik, N.; Wang, K.; Jakobsen, H. Sol. Energy Mater. Sol. Cells 2012, 105, 53.
[7] Liu, Y. Y.; Huang, B. B.; Dai, Y.; Zhang, X. Y.; Qin, X. Y.; Jiang, M. H.; Whangbo, M. H. Catal. Commun. 2009, 11, 210.
[8] Peter, L. M.; Wijayantha, K. G. U.; Riley, D. J.; Waggett, J. P. J. Phys. Chem. B 2003, 107, 8378.
[9] Park, H.; Choi, J. H.; Choi, K. M.; Lee, D. K.; Kang, J. K. J. Mater. Chem. 2012, 22, 5304.
[10] Wan, L. J.; Wang, X. Y.; Yan, S. C.; Yu, H.; Li, Z. S.; Zou, Z. G. CrystEngComm 2012, 14, 154.
[11] Yang, H. C.; Lin, H. Y.; Chien, Y. S.; Wu, J. C. S.; Wu, H. H. Catal. Lett. 2009, 131, 381.
[12] Tseng, I. H.; Chang, W. C.; Wu, J. C. S. Appl. Catal. B: Environ. 2002, 37, 37.
[13] Yu, C. L.; Wei, L. F.; Li, X.; Chen, J. C.; Fan, Q. Z.; Yu, J. C. Mater. Sci. Eng., B 2013, 178, 344.
[14] Qin, S. Y.; Xin, F.; Liu, Y. D.; Yin, X. H.; Ma, W. J. Colloid Interface Sci. 2011, 356, 257.
[15] Wang, J. Y.; Ji, G. B.; Liu, Y. S.; Gondal, M. A.; Chang, X. F. Catal. Commun. 2014, 46, 17.
[16] Ko?í, K.; Matějka, V.; Ková?, P.; Lacný, Z.; Obalová, L. Catal. Today 2011, 161, 105.
[17] Gui, M. M.; Chai, S. P.; Xu, B. Q.; Mohamed, A. R. Sol. Energy Mater. Sol. Cells 2014, 122, 183.
[18] Liu, E. Z.; Kang, L. M.; Wu, F.; Sun, T.; Hu, X. Y.; Yang, Y. H.; Liu, H. C.; Fan, J. Plasmonics 2013, 9, 61.
[19] Dhakshinamoorthy, A.; Navalon, S.; Corma, A.; Garcia, H. Energy Environ. Sci. 2012, 5, 9217.
[20] Cong, Y.; Zhang, J. L.; Chen, F.; Anpo, M. J. Phys. Chem. C 2007, 111, 6976.
[21] Zhang, Q. Y.; Li, Y.; Ackerman, E. A.; Gajdardziska, J. M.; Li, H. L. Appl. Catal., A 2011, 400, 195.
[22] Lin, Y. T.; Weng, C. H.; Lin, Y. H.; Shiesh, C. C.; Chen, F. Y. Sep. Purif. Technol. 2013, 116, 114.
[23] Umebayashi, T.; Yamaki, T.; Itoh, H.; Asai, K. Appl. Phys. Lett. 2002, 81, 454.
[24] Chen, D. M.; Yang, D.; Wang, Q.; Jiang, Z. Y. Ind. Eng. Chem. Res. 2006, 45, 4110.
[25] Zhang, S. C.; Jiang, D.; Tang, T.; Li, J. H.; Xu, Y.; Shen, W. L.; Xu, J.; Deng, F. Catal. Today 2010, 158, 329.
[26] Wu, Y. M.; Xing, M. Y.; Tian, B. Z.; Zhang, J. L.; Chen, F. Chem. Eng. J. 2010, 162, 710.
[27] Chen, X. B.; Burda, C. J. Phys. Chem. B 2004, 108, 15446.
[28] Zhao, L.; Yu, J. G. J. Colloid Interface Sci. 2006, 304, 84.
[29] Sathish, M.; Viswanathan, B.; Viswanath, R. P.; Gopinath, C. S. Chem. Mater. 2005, 17, 6349.
[30] Tian, B. Z.; Shao, Z. M.; Ma, Y. F.; Zhang, J. L.; Chen, F. J. Phys. Chem. Solids 2011, 72, 1290.
[31] Qin, H. L.; Gu, G. B.; Liu, S. C. R. Chimie 2008, 11, 95.
[32] Valentin, C. D.; Pacchioni, G.; Selloni, A.; Livraghi, S.; Giamello, E. J. Phys. Chem. B 2005, 109, 11414.
[33] Nishizawa, K.; Kodama, T.; Tabata, M.; Yoshida, T.; Tsuji, M.; Tamaura, Y. J. Chem. Soc. Faraday Trans. 1992, 88, 2771.
[34] Chen, S. H.; Xu, Y.; Lv, B. L.; Wu, D. Acta Phys.-Chim. Sin. 2011, 27, 2933. (陈淑海, 徐耀, 吕宝亮, 吴东, 物理化学学报, 2011, 27, 2933.)
[35] Rengaraj, S.; Li, X. Z. J. Mol. Catal. A: Chem. 2006, 243, 60.
[36] Irie, H.; Watanabe, Y.; Hashimoto, K. J. Phys. Chem. B 2003, 107, 5483.
[37] Nakamura, R.; Tanaka, T.; Nakato, Y. J. Phys. Chem. B 2004, 108, 10617.
[38] Zhang, X. R.; Lin, Y. H.; Zhang, J. F.; He, D. Q.; Wang, D. J. Acta Phys.-Chim. Sin. 2010, 26, 2733. (张晓茹, 林艳红, 张健夫, 何冬青, 王德军, 物理化学学报, 2010, 26, 2733.)
[39] Wang, H. X. M.S. Thesis, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 2013. (王会香, 硕士论文, 中国科学院山西煤炭化学研究所, 太原, 2013.)
[40] Zhao, D. Y.; Feng, J. L.; Huo, Q. S.; Melosh, N.; Fredrickson, G. H.; Chmelka, B. F.; Stucky, G. D. Science 1998, 279, 548.

Ag/N-TiO₂/SBA-15光催化剂的制备及其可见光催化还原CO₂

Synthesis of Ag/N-TiO₂/SBA-15 Photocatalysts and Photocatalytic Reduction of CO₂ under Visible Light Irradiation

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	Sinan Du, Liman Zhao, Zexin Zhang, Guosong Chen. Preparation and Preliminary Study on Immune Function of Mannose-modified Micromotor^★ [J]. Acta Chimica Sinica, 2023, 81(7): 741-748.
[2]	Guoqiang Zhang, Jinghao Huo, Xin Wang, Shouwu Guo. P-doped TiO₂/C Nanotubes as Anodes for High-performance Li-ion Capacitors [J]. Acta Chimica Sinica, 2023, 81(1): 6-13.
[3]	Zhongshu Xie, Zhongxin Xue, Ziwen Xu, Qian Li, Hongyu Wang, Wei-Shi Li. Conjugated Crosslinking Modification of Graphitic Carbon Nitrides and Its Effect on Visible Light-Driven Photocatalytic Hydrogen Production [J]. Acta Chimica Sinica, 2022, 80(9): 1231-1237.
[4]	Zhiye Ma, Li Ye, Yuhuan Wu, Tong Zhao. Preparation and Photocatalytic Performance of B,N-SnO₂/TiO₂ Photocatalyst [J]. Acta Chimica Sinica, 2021, 79(9): 1173-1179.
[5]	Huan Liu, Li Li, Ping Li, Guangzhi Zhang, Xun Xu, Hao Zhang, Lingfang Qiu, Hui Qi, Shuwang Duo. In-situ Construction of 2D/3D ZnIn₂S₄/TiO₂ with Enhanced Photocatalytic Performance [J]. Acta Chimica Sinica, 2021, 79(10): 1293-1301.
[6]	Hai, Man, Guo, Li-Na, Wang, Le, Duan, Xin-Hua. Visible Light Promoted Ketoalkylation of Quinoxaline-2(1H)-ones via Oxidative Ring-Opening of Cycloalkanols [J]. Acta Chimica Sinica, 2019, 77(9): 895-900.
[7]	Song Xuexi, Li Jicheng, Li Zhaohui, Li Xifei, Ding Yanhuai, Xiao Qizhen, Lei Gangtie. Effect of K-Doping on the Sodium-storage Performance of Sodium Vanadate Nanoplates [J]. Acta Chim. Sinica, 2019, 77(7): 625-633.
[8]	Meng Shuangyan, Yang Hongju, Zhu Nan, Yang Jiao, Yang Ruirui, Yang Zhiwang. Preparation and Photocatalytic Activity of BiOCl-ov/palygorskite Nanocomposites for the Selective Oxidation of Alcohols under Visible Light Irradiation [J]. Acta Chimica Sinica, 2019, 77(5): 461-468.
[9]	Ren Xiang, Zhang Xiaoping, Wang Yufen, Cao Jingyu, Cheng Yuanyuan, Feng Shouhua, Chen Huanwen. Intramolecular and Intermolecular Methyl Migration of Fenthion Studied by Electrospray Ionization Mass Spectrometry [J]. Acta Chimica Sinica, 2019, 77(4): 358-364.
[10]	Wang Hao, Wu Pinru, Zhao Xiang, Zeng Jing, Wan Qian. Advances on Photo-Promoted Glycosylation Reactions [J]. Acta Chim. Sinica, 2019, 77(3): 231-241.
[11]	Meng Shuangyan, Wang Mingming, Lü Bolin, Xue Qunji, Yang Zhiwang. Preparation of Eu-Doped ZnO/MIL-53(Fe) Photocatalyst and Its Catalytic Performance for Selective Oxidation of Alcohols [J]. Acta Chimica Sinica, 2019, 77(11): 1184-1193.
[12]	Meng Chao, Wang Hua, Wu Yubin, Fu Xianzhi, Yuan Rusheng. Study on Selective Photocatalytic Oxidation of Ethanol During TiO₂ Promoted Water-Splitting Process [J]. Acta Chim. Sinica, 2017, 75(5): 508-513.
[13]	Li Tiantian, Zhao Jikuan, Li Yao, Quan Zhenlan, Xu Jie. Synthesis and Electrochemical Properties of Nitrogen-Doped Partially Graphitized Carbon/Cobalt Iron Oxides Composite [J]. Acta Chim. Sinica, 2017, 75(5): 485-493.
[14]	Song Hao, Liu Xiaoyu, Qin Yong. Advances on Nitrogen-centered Radical Chemistry:A Photocatalytic N-H Bond Activation Approach [J]. Acta Chim. Sinica, 2017, 75(12): 1137-1149.
[15]	Duo Huanhuan, Liu Yanling, Wang Yawen, Tang Yun, Huang Weihua. Photocatalytically Renewable Electrode for On-Line Regeneration under Visible Light Irradiation and Real-Time Monitoring of Living Cells [J]. Acta Chim. Sinica, 2017, 75(11): 1091-1096.

Ag/N-TiO2/SBA-15光催化剂的制备及其可见光催化还原CO2