Facile One-pot Synthesis of Bi-decorated Defective BiOBr Composites with Remarkable Visible Light Driven Activity Towards Reduction of Aqueous Cr(Ⅵ) and Degradation of Organic Dye
1 China-Spain Collaborative Research Center for Advanced Materials, Chongqing Jiaotong University, Chongqing 400074, China 2 College of Materials Science and Engineering, Chongqing Jiaotong University, Chongqing 400074, China
Abstract: Bi/BiOBr nanocomposites with tunable Bi content and oxygen vacancies were prepared via a facile one-pot solvothermal method by adjusting the relative molar ratio of Bi precursor and bromide salt. Detailed characterizations showed that Bi nanoparticles and oxygen-vacancies on the {110}-plane of BiOBr were fabricated simultaneously in this process and ethylene glycol(EG) used as solvent afforded reduction of Bi3+ to metallic Bi and coinstantaneous conformation of oxygen vacancy. The photocatalytic performance showed that the Bi/BiOBr nanocomposites exhibited superior photocatalytic activity to their counterparts in degrading aqueous Cr(Ⅵ) and methylene blue(MB), and the removal efficiency of Bi/BiOBr was highly dependent on the content of Bi and oxygen vacancy. Among all as-prepared samples, the sample with a Bi loading of 5.0% exhibited the highest photocatalytic activity with Cr(Ⅵ) and MB removal rates up to 97.3% and 90.5% within 4 h's visible light irradiation, respectively. The mechanism study demonstrated that the remarkable visible light driven photo-activity of Bi/BiOBr nanocomposites were described to the synergy of the surface plasmon resonance (SPR) effect of metallic Bi and oxygen vacancies, which contributed to enhance the visible light harvesting and the separation efficiency of photo-generated electron-hole pairs. The present work provided a new method to the design of heterostructure materials with controllable Bi content and concomitant formation of oxygen vacancies.
1 Wang X, Zhao Y, Li F, et al. Scientific Reports, 2016, 6(1), 1. 2 Yip C T, Huang H, Zhou L, et al. Advanced Materials, 2011, 23(47), 5624. 3 Shang L, Bian T, Zhang B, et al. Angewandte Chemie International Edition, 2014, 53(1), 250. 4 Deng Y, Tang L, Zeng G, et al. Applied Catalysis B: Environmental, 2017, 203, 343. 5 Yoneyama H, Yamashita Y, Tamura H. Nature, 1979, 282(5741), 817. 6 Linsebigler A L, Lu G, Yates J T. Chemical Reviews, 1995, 95(3), 735. 7 Ahmed A Y, Kandiel T A, Ivanova I, et al. Applied Surface Science, 2014, 319, 44. 8 Yang Y, Lai C, Zeng C, et al. Advances in Colloid & Interface Science, 2018, 254, 76. 9 Li H, Shang H, Cao X, et al. Environmental Science & Technology, 2018, 52(15), 8659. 10 Ye L, Su Y, Jin X, et al. Environmental Science: Nano, 2014, 1(2), 90. 11 Zhang Z, Wang W, Gao E, et al. Journal of Hazardous Materials, 2011, 196(196), 255. 12 Chang X, Gondal M A, Al-Saadi A A, et al. Journal of Colloid & Interface Science, 2012, 377(1), 291. 13 Hu J, Xu G, Wang J, et al. New Journal of Chemistry, 2014, 38(10), 4913. 14 Yan P, Li X, Jiang D, et al. Electrochimica Acta, 2017, 259, 873. 15 Jian X, Wei M, Yuan Z, et al. Applied Catalysis B Environmental, 2011, 107(3), 355. 16 Zhihui A I, Wingkei H O, Lee S, et al. Environmental Science & Technology, 2009, 43(11), 4143. 17 Jie L, Hao L, Zhan G, et al. Accounts of Chemical Research, 2016, 50(1), 112. 18 Jiang G, Wang X, Wei Z, et al. Journal of Materials Chemistry A, 2013, 1(7), 2406. 19 Wu D, Yue S, Wang W, et al. Applied Surface Science, 2016, 391, 516. 20 Guo Y, Zhang Y, Huang H, et al. ACS Sustainable Chemistry & Engineering, 2016, 4(7), 4003. 21 F Dong, Xiong T, Yan S, et al. Journal of Catalysis, 2016, 344, 401. 22 Liu X, Cao H, Yin J. Nano Research, 2011, 4(5), 470. 23 Jiang G, Li X, Lan M, et al. Applied Catalysis B Environmental, 2017, 205, 532. 24 Chang C, Zhu L, Fu Y, et al. Chemical Engineering Journal, 2013, 233(11), 305. 25 Ni Z, Zhang W, Jiang G, et al. Chinese Journal of Catalysis, 2017, 38(7), 85. 26 Yuan X, Feng Z, Zhao J, et al. Catalysts, 2018, 8(10), 426. 27 Dafeng Zhang, Liu H, Su C, et al. Separation and Purification Technology, 2019. 218. 28 Gao M, Zhang D, Pu X, et al. Separation & Purification Technology, 2015, 154, 211. 29 Yao Y, Liang J, Wei Y, et al. Materials Letters, 2019, 240, 246. 30 Li H, Li J, Ai Z, et al. Angewandte Chemie, 2017, 57(1),122. 31 Cui Z, Dong X, Sun Y, et al. Nanoscale, 2018, 10(35), 16928. 32 Ma H, Min Z, Xing H, et al. Journal of Materials Science Materials in Electronics, 2015, 26(12), 10002. 33 Yuan X, Jing Q, Chen J, et al. Applied Clay Science, 2017, 143, 168. 34 Yuan X, Li W. Applied Clay Science, 2017, 138, 107. 35 Li W, Geng X, Xiao F, et al. Chemcatchem, 2017, 9(19),3762. 36 Fan Z, Zhao Y, Qiu L, et al. RSC Advances, 2016, 6(3), 2028. 37 Kong X Y, Lee W P C, Ong W J, et al. Chemcatchem, 2016, 8(19), 3074. 38 Dong X, Zhang W, Sun Y, et al. Journal of Catalysis, 2018, 357,41. 39 Liang K, Zheng J, Henry H, et al. Journal of Catalysis, 2012, 293(18), 116. 40 Jiang H, Dai H, Meng X, et al. Applied Catalysis B Environmental, 2011, 105(3), 326. 41 Xing H, Ma H, Fu Y, et al. Journal of Renewable and Sustainable Energy, 2015, 7(6). 42 Xia J, Yin S, Li H, et al. Dalton Transactions, 2011, 40(19), 5249. 43 Xiang L, Wang J, Dong Y, et al. Materials Science in Semiconductor Processing, 2018, 88, 214. 44 Ge L. Materials Chemistry and Physics, 2008, 107(2-3), 465. 45 Xu J, Pei L, Shi S, et al. Applied Surface Science, 2012, 258(18), 7118. 46 Zhang X, Ai Z, Jia F, et al. Journal of Physical Chemistry C, 2008, 112(3), 747. 47 Ye L, Zan L, Tian L, et al. Chemical Communications, 2011, 47(24), 6951. 48 Naeem M, Hasanain S K, Kobayashi M, et al. Nanotechnology, 2006, 17(10), 2675. 49 Jing L Q, Xu Z L, Du Y G, et al. Chemical Research in Chinese Universities, 2002, 23(5), 874. 50 Yang G, Miao W, Yuan Z, et al. Applied Catalysis B Environmental, 2018, 237, 302. 51 Liu J, Li H, Du N, et al. RSC Advances, 2014, 4(59), 31393. 52 Weng S, Fang Z, Wang Z, et al. ACS Applied Materials Interfaces, 2014, 6(21), 18423. 53 Toudert J, Serna R, de Castro M J, et al. Journal of Physical Chemistry C, 2012, 116(38), 20530. 54 Li Y, Zhao Y, Wu G, et al. Materials Research Bulletin, 2018, 101, 39. 55 Li Y, Zhu J, Yang R, et al. Micro & Nano Letters, 2018, 13, 1040. 56 Zhang X, Ji G, Liu Y, et al. Physical Chemistry Chemical Physics Pccp, 2015, 17(12), 8078. 57 Ming K, Li Y, Chen X, et al. Journal of the American Chemical Society, 2011, 133(41), 16414. 58 Liu J, Li H, Du N, et al. RSC Advances, 2014, 4(59), 31393. 59 Sun Y, Zhao Z, Zhang W, et al. Journal of Colloid & Interface Science, 2017, 485, 1. 60 Nakamura I, Negishi N, Kutsuna S, et al. Journal of Molecular Catalysis A Chemical, 2000, 161(1), 205. 61 Liu Z S, Wu B T. Materials Science in Semiconductor Processing, 2015, 31, 68. 62 Gaya U I, Abdullah A H. Journal of Photochemistry & Photobiology C Photochemistry Reviews, 2008, 9(1), 1. 63 Hua C, Dong X, Wang Y, et al. Journal of Materials Science, 2019, 54, 9397. 64 Imam S S, Adnan R, Mohd K N H, et al. Journal of Materials Science: Materials in Electronics, 2019, 30(6), 6263. 65 Zhang X, Zhao L, Fan C, et al. Computational Materials Science, 2012, 61, 180. 66 Liu Y, Wang R, Yang Z, et al. Chinese Journal of Catalysis, 2015, 36(12), 2135.