<trans-title>Morphology and Photocatalytic Performance Regulation of Nd<sup>3+</sup>-doped BiVO<sub>4</sub> with Staggered Band Structure </trans-title>

Jingwei XU; Zheng LI; Zepu WANG; Han YU; Qi HE; Nian FU; Bangfu DING; Shukai ZHENG; Xiaobing YAN

doi:10.15541/jim20190409

Journal of Inorganic Materials, Volume. 35, Issue 7, 789(2020)

Morphology and Photocatalytic Performance Regulation of Nd³⁺-doped BiVO₄ with Staggered Band Structure

Jingwei XU1... Zheng LI2, Zepu WANG1, Han YU1, Qi HE1, Nian FU3, Bangfu DING1,*, Shukai ZHENG1 and Xiaobing YAN1 |Show fewer author(s)

Author Affiliations

¹College of Electronic Information Engineering, Hebei University, Baoding 071002, China

²College of Civil Engineering and Architecture, Hebei University, Baoding 071002, China

³College of Physics Science and Technology, Hebei University, Baoding 071002, China

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Figures & Tables(10)

1. XRD patterns of Nd³⁺-doped BiVO₄ with different contents of Nd³⁺and monoclinic and tetragonal standard patterns (a, b), supercell configurations of optimized monoclinic (c) and tetragonal (d)

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2. Raman spectra of pure phase (a), 4at% (b), and 9at% (c) Nd³⁺-doped BiVO₄

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$TEM images of 4at% Nd3+-doped BiVO4 with different magnifications (a,b), where the inset in (b) represented the Fourier transform diffraction spots of I and II regions$

3. TEM images of 4at% Nd³⁺-doped BiVO₄ with different magnifications (a,b), where the inset in (b) represented the Fourier transform diffraction spots of I and II regions

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4. SEM images of pure (a), 4at% (b), 9at% (c), 50at% (d), and 100at% (e) Nd³⁺-doped BiVO₄

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5. Schematic of self-made photocatalytic degradation experimental device (a) and photocatalytic degradation curves of Rhodamine B over the prepared samples (b)

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6. Diffuse reflectance spectra of three samples (a) and band gap obtained by fitting KM formula (b)

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7. Flat band voltage derived from Motto-Schotty curve (a) and energy band structure of heterojunction (b)

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8. Pore distribution (a), photoluminescence (b), impedance spectra (c), and photocurrent (d) of three typical samples

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Table 1. Usage of three raw materials for the synthesis of Nd³⁺-doped samples with different contents of Nd³⁺

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Table 1. Usage of three raw materials for the synthesis of Nd³⁺-doped samples with different contents of Nd³⁺

Raw material	Nd(NO₃)₃•6H₂O/g	Bi(NO₃)₃•5H₂O/g	NaVO₃/g
Pure	0	4.8507	1.2193
1at%	0.0438	4.8022	1.2193
2at%	0.0867	4.7537	1.2193
4at%	0.1753	4.6567	1.2193
7at%	0.3068	4.5111	1.2193
9at%	0.3945	4.4141	1.2193
15at%	0.6575	4.1230	1.2193
30at%	1.3150	3.3954	1.2193
50at%	2.1917	2.4253	1.2193
70at%	3.0684	1.4552	1.2193
100at%	4.3835	0	1.2193

Table 2. XPS results of pure and 4at% Nd³⁺-doped samples
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Table 2. XPS results of pure and 4at% Nd³⁺-doped samples
Element Pure Nd³⁺-doped
Peak Percentage Peak Percentage
Nd3d - 0 993.64 0.48
Bi4f 158.74 11.63 158.99 13.68
O1s 529.53 50.77 529.72 57.37
V2p 516.43 9.33 516.55 10.3

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Jingwei XU, Zheng LI, Zepu WANG, Han YU, Qi HE, Nian FU, Bangfu DING, Shukai ZHENG, Xiaobing YAN. Morphology and Photocatalytic Performance Regulation of Nd³⁺-doped BiVO₄ with Staggered Band Structure [J]. Journal of Inorganic Materials, 2020, 35(7): 789

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