Abstract: Pure CeO2 and a series of GO/CuO/CeO2 photocatalysts were prepared with the assist of [BMIM]PF6 ionic liquid. X-ray diffraction, scanning electron microscopy, accelerated surface area and porosimetry system, and UV-Visible diffuse reflectance spectra were used to characterize and analyze the samples. The influence of different GO and CuO doping amounts on the hydrogen production activity of GO/CuO/CeO2 composite catalyst under the irradiation of visible light was studied. The experimental results showed that the hydrogen production efficiency of composite samples was significantly better than that of pure CeO2, and the hydrogen production rate reached 111.23 μmol·h-1·g-1 when the GO load was 2wt% and the CuO load was 3wt%, which was 2.5 times of the pure CeO2, the quantum yields of the composite sample was 15.67%.
1 Biswas M R, Ali A, Cho K Y, et al. Ultrasonics-Sonochemistry, 2018, 42, 738. 2 Zhang F, Ding T, Zhang Y C, et al. Materials Letters, 2017, 192, 149. 3 Zhu L, Nguyen D C T, Woo J H, et al. Scientific Reports, 2018, 8, 12759. 4 Wen X J, Niu C G, Ruan M, et al. Journal of Colloid and Interface Scie-nce, 2017, 497, 368. 5 Watanabe S, Ma X L, Song C S. The Journal of Physical Chemistry C, 2009, 113(32), 14249. 6 Zong X, Yan H J, Wu G P, et al. Journal of the American Chemical Society, 2008, 130(23), 7176. 7 Hossain S T, Azeeva E, Zhang K F, et al. Applied Surface Science, 2018, 455, 132. 8 Zhang X D, Zhang X L, Song L, et al. International Journal of Hydrogen Energy, 2018, 43(39), 18279. 9 Yang S Q, Zhou F, Liu Y J, et al. International Journal of Hydrogen Energy, 2019, 44(14), 7252. 10 Liu Z M, He C X, Chen B H, et al. Catalysis Today, 2017, 297, 78. 11 Liang H Y, Xiao K, Wei L Y, et al. Journal of Hazardous Materials, 2019, 374, 167. 12 Yin J Y, Cai J J, Yin C, et al. Journal of Environmental Chemical Engineering, 2016, 4(1), 958. 13 Pal D B, Lavania R, Srivastava P, et al. Journal of Environmental Che-mical Engineering, 2018, 6(2), 2577. 14 Priyadharsan A, Vasanthakumar V, Karthikeyan S, et al. Journal of Photochemistry and Photobiology A: Chemistry, 2017, 346, 32. 15 Huang T F, Wu J, Zhao Z, et al. Materials Letters, 2016, 185, 503. 16 Kumar S, Ojha A K, Patrice D, et al. Physical Chemistry Chemical Physics, 2015, 18(18), 13126. 17 Wasserscheid P, Keim W. Angewandte Chemie International Edition, 2000, 39, 3772. 18 Chen H X, Zeng J, Chen M D, et al. Chinese Journal of Catalysis, 2019, 40(5), 744. 19 Kim T, Li H B, Lian J B, et al. Crystal Research and Technology, 2010, 45(7), 767. 20 Zhang G S, Zhang W, Wang P, et al. International Journal of Hydrogen Energy, 2013, 38(3), 1286. 21 Zhang G S, Zhang W, Minakata D, et al. International Journal of Energy Research, 2014, 38(12), 1513. 22 Meng D J, Wang B W, Liu Z, et al. Journal of Energy Chemistry, 2017, 26(3), 368. 23 Chen F J, Ho P L, Ran R, et al. Journal of Alloys and Compounds, 2017, 714, 560. 24 Tu S H, Xu C, Dai C, et al. Materials Reports B:Research Papers, 2019, 33(8), 2633(in Chinese). 涂盛辉, 徐翀, 戴策, 等. 材料导报:研究篇, 2019, 33(8), 2633. 25 Song C D, Zhang J, Gao Y, et al. Acta Physico-Chimica Sinica, 2017, 33(9), 1891(in Chinese). 宋春冬, 张静, 高莹, 等. 物理化学学报, 2017, 33(9), 1891. 26 Liu S L, Wang X J. Applied Chemical Industry, 2018, 47(10), 2184(in Chinese). 刘淑玲, 王小剑. 应用化工, 2018, 47(10), 2184. 27 Ma X J, Lu P, Wu P. Ceramics International, 2018, 44(5), 5284. 28 Johns R W, Blemker M A, Azzaro M S, et al. Journal of Materials Chemistry C, 2017, 5(23), 1039. 29 Wang N, Pan Y, Lu T, et al. Applied Surface Science, 2017, 403, 699. 30 Pan H, Hu Y, Wu X W, et al. Materials Reports B:Research Papers, 2018, 32(12), 4224(in Chinese). 潘会, 胡轶, 兀晓文, 等. 材料导报:研究篇, 2018, 32(12), 4224.