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- In relation to this article, we declare that there is no conflict of interest.
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Received September 4, 2016
Accepted January 2, 2017
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Enhanced photoactivity of N-doped TiO2 for Cr(VI) removal: Influencing factors and mechanism
School of Environmental Science and Engineering, North China Electric Power University, Baoding, Hebei 071003, P. R. China 1Sailhero Environmental Protection Hi-tech Co., Ltd., No. 251, Xiangjiang Road, Shijiazhuang City, Hebei, P. R. China
wsqhg@163.com, cheng_w_l@163.com
Korean Journal of Chemical Engineering, May 2017, 34(5), 1584-1590(7), 10.1007/s11814-017-0003-7
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Abstract
To further enhance the photoactivity of virgin TiO2, we prepared N-doped TiO2 (N-TiO2) by sol-gel method and used it to remove Cr(VI) ions from water under visible light. The catalysts were characterized by TEM, XRD, BET and UV-vis techniques. Better crystalline structure, larger specific surface area and decreased band-gap width were obtained after the insertion of N atoms into TiO2 lattice. Several influencing factors were also investigated. The removal efficiency of Cr(VI) increases with the decrease of initial Cr(VI) concentration or the increase of catalyst dosage. Addition of glucose or some inorganic ions (Mg2+, Al3+) can promote the photoreduction process by improving the quantum efficiency. The kinetics and mechanism were discussed as well.
References
Zhang XY, Chen HS, Fang DN, J. Solid State Electrochem., 20(10), 2835 (2016)
Bao YH, Zhang XY, Zhang X, Yang L, Zhang XY, Chen HS, Yang M, Fang DN, J. Power Sources, 321, 120 (2016)
Zhang XY, Yang L, Hao F, Chen HS, Yang M, Fang DN, Nanomaterials, 5(4), 1985 (2015)
Zhang XY, Hao F, Chen SH, Fang DN, Mech. Mater., 91, 351 (2015)
Giannakas AE, Seristatidou E, Deligiannakis Y, Konstantinou I, Appl. Catal. B: Environ., 132-133, 460 (2013)
Wang HJ, Wu XJ, Wang YL, Jiao ZB, Yan SW, Huang LH, Chinese J. Catal., 32(4), 637 (2011)
Pifferi V, Spadavecchia F, Cappelletti G, Paoli EA, Bianchi CL, Falciola L, Catal. Today, 209, 8 (2013)
Sun Q, Li H, Zheng SL, Sun ZM, Appl. Surf. Sci., 311, 369 (2014)
Liu W, Ni JR, Yin XC, Water Res., 53, 12 (2014)
Sun ZM, Zheng LM, Zheng SL, Frost RL, J. Colloid Interface Sci., 404, 102 (2013)
Zheng HR, Cui YJ, Zhang JS, Chinese J. Catal., 32(1), 100 (2011)
Yun HJ, Lee DM, Yu S, Yoon J, Park HJ, Yi J, J. Mol. Catal. A-Chem., 378(11), 221 (2013)
Hu SZ, Wang AJ, Li X, Holger Lowe, J. Phys. Chem. Solids, 71, 156 (2010)
Xie MZ, Feng YJ, Luan P, Bian J, Jing LQ, Chinese J. Inorg. Chem., 30(9), 2081 (2014)
Cendrowski K, Jedrzejczak M, Peruzynska M, Dybusb A, Drozdzik M. Ewa Mijowska, Alloys Comp., 605, 173 (2014)
Wang SQ, Zhang DL, Adv. Mater. Res., 610-613, 1497 (2013)
Chen XY, Kuo DH, Lu DF, Chem. Eng. J., 295, 192 (2016)
Zhang K, Wang XD, He TN, Guo XL, Feng YN, Powder Technol., 253, 608 (2014)
Nolan NT, Synnott DW, Seery MK, Hinder SJ, Wassenhoven AV, Pillai SC, Hazard. Mater., 211, 88 (2012)
Salarian AA, Hami Z, Mirzaei N, Mohseni SM, Asadi A, Bahrami H, Vosoughi M, Alinejad A, Zare MR, J. Mol. Liq., 220, 183 (2016)
Ren XC, Chang GZ, Zhu YM, Liu HF, Cao M, Environ. Chem., 28(06), 288 (2009)
Peter A, Mihaly-Cozmuta L, Cozmuta AM, Camelia N, Tudoran LB, Baia L, Mater. Technol., 29(3), 129 (2014)
Bao YH, Zhang XY, Zhang X, Yang L, Zhang XY, Chen HS, Yang M, Fang DN, J. Power Sources, 321, 120 (2016)
Zhang XY, Yang L, Hao F, Chen HS, Yang M, Fang DN, Nanomaterials, 5(4), 1985 (2015)
Zhang XY, Hao F, Chen SH, Fang DN, Mech. Mater., 91, 351 (2015)
Giannakas AE, Seristatidou E, Deligiannakis Y, Konstantinou I, Appl. Catal. B: Environ., 132-133, 460 (2013)
Wang HJ, Wu XJ, Wang YL, Jiao ZB, Yan SW, Huang LH, Chinese J. Catal., 32(4), 637 (2011)
Pifferi V, Spadavecchia F, Cappelletti G, Paoli EA, Bianchi CL, Falciola L, Catal. Today, 209, 8 (2013)
Sun Q, Li H, Zheng SL, Sun ZM, Appl. Surf. Sci., 311, 369 (2014)
Liu W, Ni JR, Yin XC, Water Res., 53, 12 (2014)
Sun ZM, Zheng LM, Zheng SL, Frost RL, J. Colloid Interface Sci., 404, 102 (2013)
Zheng HR, Cui YJ, Zhang JS, Chinese J. Catal., 32(1), 100 (2011)
Yun HJ, Lee DM, Yu S, Yoon J, Park HJ, Yi J, J. Mol. Catal. A-Chem., 378(11), 221 (2013)
Hu SZ, Wang AJ, Li X, Holger Lowe, J. Phys. Chem. Solids, 71, 156 (2010)
Xie MZ, Feng YJ, Luan P, Bian J, Jing LQ, Chinese J. Inorg. Chem., 30(9), 2081 (2014)
Cendrowski K, Jedrzejczak M, Peruzynska M, Dybusb A, Drozdzik M. Ewa Mijowska, Alloys Comp., 605, 173 (2014)
Wang SQ, Zhang DL, Adv. Mater. Res., 610-613, 1497 (2013)
Chen XY, Kuo DH, Lu DF, Chem. Eng. J., 295, 192 (2016)
Zhang K, Wang XD, He TN, Guo XL, Feng YN, Powder Technol., 253, 608 (2014)
Nolan NT, Synnott DW, Seery MK, Hinder SJ, Wassenhoven AV, Pillai SC, Hazard. Mater., 211, 88 (2012)
Salarian AA, Hami Z, Mirzaei N, Mohseni SM, Asadi A, Bahrami H, Vosoughi M, Alinejad A, Zare MR, J. Mol. Liq., 220, 183 (2016)
Ren XC, Chang GZ, Zhu YM, Liu HF, Cao M, Environ. Chem., 28(06), 288 (2009)
Peter A, Mihaly-Cozmuta L, Cozmuta AM, Camelia N, Tudoran LB, Baia L, Mater. Technol., 29(3), 129 (2014)
