Visible-light-driven photocatalyst of La-N-codoped TiO2 nano-photocatalyst: Fabrication and its enhanced photocatalytic performance and mechanism

Junjing Li; Bo Li; Jiejing Li; Junliang Liu; Liang Wang; Hongwei Zhang; Zhaohui Zhang; Bin Zhao

Journal of Industrial and Engineering Chemistry, Vol.25, 16-21, May, 2015

DOI10.1016/j.jiec.2014.09.042 Export Citation

Visible-light-driven photocatalyst of La-N-codoped TiO2 nano-photocatalyst: Fabrication and its enhanced photocatalytic performance and mechanism

Junjing Li^†, Bo Li¹, Jiejing Li², Junliang Liu³, Liang Wang, Hongwei Zhang, Zhaohui Zhang, and Bin Zhao

School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Binshuixi Road 399, Xiqing District, Tianjin 300387, PR China
¹Qinghai Institute of Salt Lakes,, Chinese Academy of Sciences, Xinning Road 18, Chengxi District, Xining 810008, PR China
²Hebei Yuanda Securities Investment Consulting Company Limited, Zhongshan Road 265, Changan District, Shijiazhuang 050010, PR China
³Institute of Urban and Rural Construction, Agricultural University of Hebei, Bao Ding 071001, PR China

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In this study, La, N codoped TiO2 (La-N-TiO2) nano-photocatalyst was fabricated through simple sol-gel method. The resulting samples were characterized through X-ray diffraction (XRD), scanning electrons microscope (SEM), transmission electrons microscope (TEM), X-ray photoelectron spectroscopy (XPS) and UV-visible light diffuse reflection spectroscopy (UV-vis DRS). Results revealed that La elements were not implanted into the structure of TiO2 but existed as the form of Tisingle bondOsingle bondLa bonds in the interstitial site, while N dopants were incorporated into the lattice of TiO2 and coexisted in the substitutional N (Nsingle bondTisingle bondO) and interstitial N (Tisingle bondOsingle bondN) in the La-N-TiO2 catalyst, thereby resulting in the formation of new impurity energy level between the forbidden band and greatly enhancement of light absorption ability in visible light region. The enhanced visible light driven (VLD) photocatalytic (PC) performance for the degradation of phenol aqueous solution could be attributed to the intense light absorbance in visible light region and high separation efficiency of photogenerated charge carriers.

Keywords:La-N-codoped;TiO2;Photocatalysis;Phenol

[References]

Fujishima A, Honda K, Nature, 238, 37 (1972)
Gratzel M, Nature, 414, 338 (2001)
Pichat P, Disdier J, Hoang-Van C, Mas D, Goutailler G, Gaysse C, Catal. Today, 63(2-4), 363 (2000)
Bae EY, Choi WY, Environ. Sci. Technol., 37, 147 (2003)
Francioso L, Presicce DS, Epifani M, Siciliano P, Ficarella A, Sens. Actuators B-Chem., 107, 563 (2005)
Linsebigler AL, Lu GQ, Yates JT, Chem. Rev., 95(3), 735 (1995)
Hoffmann MR, Martin ST, Choi WY, Bahnemann DW, Chem. Rev., 95(1), 69 (1995)
Choi WY, Termin A, Hoffmann MR, J. Phys. Chem., 98(51), 13669 (1994)
Buso D, Pacifico J, Martucci A, Mulvaney P, Adv. Funct. Mater., 17(3), 347 (2007)
Xin BF, Jing LQ, Ren ZY, Wang BQ, Fu HG, J. Phys. Chem. B, 109(7), 2805 (2005)
Wang EJ, Yang WS, Cao YA, J. Phys. Chem. C, 113, 20912 (2009)
Zhao W, Ma WH, Chen CC, Zhao JC, Shuai ZG, J. Am. Chem. Soc., 126(15), 4782 (2004)
Wei HY, Wu YS, Lun N, Zhao F, J. Mater. Sci., 39(4), 1305 (2004)
Cheng XW, Yu XJ, Li BY, Yan L, Xing ZP, Li JJ, Mater. Sci. Eng. B-Solid State Mater. Adv. Technol., 178, 425 (2013)
Du FW, Yu SY, J. Nanosci. Nanotechnol., 14, 6965 (2014)
Yu JG, Dai GP, Cheng B, J. Phys. Chem. C, 114, 19378 (2010)
Zhang QH, Gao L, Guo JK, Appl. Catal. B: Environ., 26(3), 207 (2000)
Jing LQ, Sun XJ, Xin BF, Wang BQ, Cai WM, Fu HG, J. Solid State Chem., 177, 3375 (2004)
Li FB, Li XZ, Hou MF, Appl. Catal. B: Environ., 48(3), 185 (2004)
Cong Y, Zhang JL, Chen F, Anpo M, J. Phys. Chem. C, 111, 6976 (2007)
Cheng XW, Yu XJ, Xing ZP, Wan JF, Energy Procedia, 16, 598 (2012)
Sano T, Negishi N, Koike K, Takeuchi K, Matsuzawa S, J. Mater. Chem., 14, 380 (2004)
Cheng XW, Liu HL, Chen QH, Li JJ, Wang P, Electrochim. Acta, 103, 134 (2013)
Cheng XW, Yu XJ, Xing ZP, Mater. Res. Bull., 47(11), 3804 (2012)
Spadavecchia F, Cappelletti G, Ardizzone S, Bianchi CL, Cappelli S, Oliva C, Scardi P, Leoni M, Fermo P, Appl. Catal. B: Environ., 96(3-4), 314 (2010)

[Referenced By]

[1] Fujishima A, Honda K, Nature, 238, 37 (1972)

[2] Gratzel M, Nature, 414, 338 (2001)

[3] Pichat P, Disdier J, Hoang-Van C, Mas D, Goutailler G, Gaysse C, Catal. Today, 63(2-4), 363 (2000)

[4] Bae EY, Choi WY, Environ. Sci. Technol., 37, 147 (2003)

[5] Francioso L, Presicce DS, Epifani M, Siciliano P, Ficarella A, Sens. Actuators B-Chem., 107, 563 (2005)

[6] Linsebigler AL, Lu GQ, Yates JT, Chem. Rev., 95(3), 735 (1995)

[7] Hoffmann MR, Martin ST, Choi WY, Bahnemann DW, Chem. Rev., 95(1), 69 (1995)

[8] Choi WY, Termin A, Hoffmann MR, J. Phys. Chem., 98(51), 13669 (1994)

[9] Buso D, Pacifico J, Martucci A, Mulvaney P, Adv. Funct. Mater., 17(3), 347 (2007)

[10] Xin BF, Jing LQ, Ren ZY, Wang BQ, Fu HG, J. Phys. Chem. B, 109(7), 2805 (2005)

[11] Wang EJ, Yang WS, Cao YA, J. Phys. Chem. C, 113, 20912 (2009)

[12] Zhao W, Ma WH, Chen CC, Zhao JC, Shuai ZG, J. Am. Chem. Soc., 126(15), 4782 (2004)

[13] Wei HY, Wu YS, Lun N, Zhao F, J. Mater. Sci., 39(4), 1305 (2004)

[14] Cheng XW, Yu XJ, Li BY, Yan L, Xing ZP, Li JJ, Mater. Sci. Eng. B-Solid State Mater. Adv. Technol., 178, 425 (2013)

[15] Du FW, Yu SY, J. Nanosci. Nanotechnol., 14, 6965 (2014)

[16] Yu JG, Dai GP, Cheng B, J. Phys. Chem. C, 114, 19378 (2010)

[17] Zhang QH, Gao L, Guo JK, Appl. Catal. B: Environ., 26(3), 207 (2000)

[18] Jing LQ, Sun XJ, Xin BF, Wang BQ, Cai WM, Fu HG, J. Solid State Chem., 177, 3375 (2004)

[19] Li FB, Li XZ, Hou MF, Appl. Catal. B: Environ., 48(3), 185 (2004)

[20] Cong Y, Zhang JL, Chen F, Anpo M, J. Phys. Chem. C, 111, 6976 (2007)

[21] Cheng XW, Yu XJ, Xing ZP, Wan JF, Energy Procedia, 16, 598 (2012)

[22] Sano T, Negishi N, Koike K, Takeuchi K, Matsuzawa S, J. Mater. Chem., 14, 380 (2004)

[23] Cheng XW, Liu HL, Chen QH, Li JJ, Wang P, Electrochim. Acta, 103, 134 (2013)

[24] Cheng XW, Yu XJ, Xing ZP, Mater. Res. Bull., 47(11), 3804 (2012)

[25] Spadavecchia F, Cappelletti G, Ardizzone S, Bianchi CL, Cappelli S, Oliva C, Scardi P, Leoni M, Fermo P, Appl. Catal. B: Environ., 96(3-4), 314 (2010)