光谱学与光谱分析 |
|
|
|
|
|
Preparation and Photocatalytic Activity of CeO2 Loaded Porous Alkali-Activated Steel Slag-Based Catalyst |
KANG Le, ZHANG Yao-jun*, ZHANG Li, ZHANG Ke, YANG Meng-yang |
College of Materials and Mineral Resources, Xi’an University of Architecture and Technology, Xi’an 710055, China |
|
|
Abstract High value-added utilization of solid wastes is one of the important ways of sustainable development. A novel pore size-controlled alkali-activated steel slag-based cementitious material (PASSCM) was synthesized by adjusting the content of pore forming agent of acrylic resin emulsion. Meanwhiel, a new type of porous steel slag-based catalyst loaded CeO2 was prepared via incipient wetness impregnation method in the paper. The composition, structure and optical properties of photocatalysts were characterized with XRF, XRD, BET and UV-Vis DRS. Meanwhile, the photocatalytic performance of hydrogen production from water was evaluated. The results showed that adding pore-forming agent changed the pore structure and the mesoporous volume increased by 70.27% of alkali-activated steel slag-based cementitious material. The mesoporous volume increased by 144.14% in photocatalyst loaded 8 Wt% CeO2. In the simulated solar source irradiation for 6 h, the photocatalyst loaded 8wt%CeO2 exhibiting the highest photocatalytic hydrogen production activity (7 653 μmol·g-1) and hydrogen generation rate [1 275.5 μmol·(g·h)-1], which were attributed to mesoporous volume increases the mass transfer rate of the water molecules, and in the formation of the coupled semiconductors, the high dispersion of the CeO2 active component and the FeO in the carrier promoted the high efficiency separation of the photogenerated electron-hole pairs.
|
Received: 2016-05-31
Accepted: 2016-10-12
|
|
Corresponding Authors:
ZHANG Yao-jun
E-mail: zhangyaojun@xauat.edu.cn
|
|
[1] Sun P, Guo Z C. Transactions of Nonferrous Metals Society of China, 2015, 25: 2230. [2] Shi Y C, Chen H Y, Wang Jia, et al. Construction and Building Materials, 2015, 82: 227. [3] Sun P, Guo Z C. Journal of Environmental Sciences, 2015, 36: 67. [4] Tsakiridis P E, Papadimitriou G D, Tsivilis S. Journal of Hazardous Materials, 2008, 152: 805. [5] Makela M, Watkins G, Poykio R, et al. Journal of Hazardous Materials, 2012, 207-208: 21. [6] Oh C, Rhee S, Oh M, et al. Journal of Hazardous Materials, 2012, 213-214: 147. [7] Wang Q, Yan P Y. Construction and Building Materials, 2010, 24: 1134. [8] Oconnor S J, Mackenzie K J D, Smith M E, et al. Journal of Materials Chemistry, 2010, 20: 10234. [9] Belhadj E, Diliberto C, Lecomte A. Cement & Concrete Composites, 2012, 34: 34. [10] Zhang Y J, Liu L C, Xu Y, et al. Journal of Hazardous Materials, 2012, 209-201: 146. [11] Saravanan R, Joicy S, Gupta V K, et al. Materials Science and Engineering C, 2013, 33: 4725. [12] Phanichphant S, Nakaruk A, Channei D. Applied Surface Science, 2016, 387: 214. [13] Akbari-Fakhrabadi A, Saravanan R, Jamshidijam M, et al. Journal of Saudi Chemical Society, 2015, 19(4): 505. [14] Saravanan R, Gupta V K, Narayanan V, et al. Materials Science and Engineering: C, 2013, 33: 4725. [15] ZHANG Yao-jun, ZHANG Li(张耀君, 张 莉). Journal of Inorganic Materials(无机材料学报), 2008, 23(1): 66. |
[1] |
LIU Xiao-zhen1, SHI Xing-ju1, LIU Xiao-zhou2, REN Xiao-hui1, CHEN Jie3, ZHOU Jie-hua1. Preparation of the Porous CeO2 Film and Its Spectral Properties[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2018, 38(04): 1324-1328. |
[2] |
MA Hui-yan1,2, ZHOU Dan1, LIU Ju-ming2, ZHANG Qian-cheng1,2*. Preparation and Spectral Characteristics of SO2-4/CeO2-TiO2 Photocatalyst[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2017, 37(10): 3315-3320. |
[3] |
FU Yue, CONG Yan*, YANG Yang, XIAO Yu, HE Yang-yang, WANG Li-mei, DONG Bin* . Spectroscopic Properties of CeO2∶Eu3+ for White LEDs [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2015, 35(11): 3032-3035. |
[4] |
ZOU Han-bo, CHEN Sheng-zhou, WANG Qi-ying, LIU Zi-li, LIN Wei-ming . Study on CuO-CeO2 Catalysts Doped with Alkali and Alkaline Earth Metal Oxides by In-Situ DRIFTS [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2010, 30(03): 672-676. |
[5] |
HAN Qiao-feng, CHEN Liang, QIANG Fei, ZHU Wen-chao, XU Bing, WANG Xin . Study on the Preparation and Spectral Characteristics of CeO2 Nanocrystallines[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(11): 3011-3014. |
[6] |
ZHANG Qing,HE Zhen-liang,LI Jin-wei,ZHAN Ying-ying,LIN Xing-yi,ZHENG Qi*. Study on the Spectra of Au/CeO2 Catalysts Modified by La2O3 Additive[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2008, 28(04): 926-929. |
[7] |
WANG Xiao-dong, LIU Xiao-hua*,CHEN Shao-jun, LI Ming, LIU Min. Preparation of CeO2∶Eu3+ Powders by Sol-Gel Method and Their Photoluminescence Properties[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2007, 27(11): 2182-2185. |
[8] |
Garidi1, LI Xia1*, LI Li2, Zhaorigetu1 . The Research on Preparing CeO2 Nanocrystalline by Homogeneous Precipitation Method[J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2006, 26(09): 1746-1748. |
|
|
|
|