BiOBr/ZnMoO4 Step-scheme Heterojunction: Construction and Photocatalytic Degradation Properties

doi:10.15541/jim20220192

Abstract

Abstract:

Photocatalysis is widely used for the removal of refractory organic pollutants in water, but the catalytic activity of semiconductor photocatalysts is significantly inhibited due to the high recombination rate of photogenerated electrons and holes. In this study, an S-scheme BiOBr/ZnMoO₄ composite was successfully prepared by a facile solvothermal method. The structure analysis, in-situ XPS, work function test, free radical capture and ESR experiment confirmed that the BiOBr/ZnMoO₄ composite formed an S-scheme heterojunction. The experimental results show that BiOBr/ZnMoO₄ heterojunction with appropriate ZnMoO₄ content can significantly improve the photocatalytic performance of BiOBr. Compared with pure BiOBr and ZnMoO₄, 15% BiOBr/ZnMoO₄ exhibits the best photocatalytic activity under visible light irradiation, and the photocatalytic degradation rate of bisphenol A reaches 85.3% (90 min). The rate constants of photodegradation of ciprofloxacin are 2.6 times that of BiOBr and 484 times that of ZnMoO₄, respectively. This can be attributed to the tight interfacial bonding between BiOBr and ZnMoO₄ and the formation of S-scheme heterojunction, which enables the efficient spatial separation and transfer of photogenerated carriers. This work provides a simple and efficient method for the directional synthesis of Bi-based S-scheme heterojunction photocatalytic materials, and provides a new theory and experimental basis for further understanding of the structure-activity relationship of Bi-based multi-heterojunction photocatalytic materials.

Key words: S-scheme heterojunction, internal electric field, BiOBr, ZnMoO₄, photocatalysis

CLC Number:

O643

MA Xinquan, LI Xibao, CHEN Zhi, FENG Zhijun, HUANG Juntong. BiOBr/ZnMoO₄ Step-scheme Heterojunction: Construction and Photocatalytic Degradation Properties[J]. Journal of Inorganic Materials, 2023, 38(1): 62-70.

Figures/Tables 13

Fig. 1 Preparation process of BiOBr/ZnMoO4 composite photocatalyst

Fig. 2 XRD patterns of the samples (a) and corresponding partial enlarged pattern at 2θ=29°-33°(b)

Fig. 3 TEM images (a, b) and HRTEM images (c) and elemental mapping analyses (d-i) of 15% BiOBr/ZnMoO4 samples

Fig. 4 In-situ XPS spectra of 15% BiOBr/ZnMoO4 (a), and corresponding Bi4f (b), O1s (c), Br3d (d), Zn2p (e) and Mo3d (f) high-resolution XPS spectra

Fig. 5 Photodegradation of BPA by different catalysts under visible light irradiation (a) and corresponding first-order kinetic equations (c); CIP photodegradation (b) and corresponding first-order kinetic equations (d); UV spectra of BPA(e) and CIP(f) photodegraded by 15% BiOBr/ZnMoO4

Fig. 6 Work functions of BiOBr (a), ZnMoO4 (b) and 15% BiOBr/ZnMoO4(c)

Fig. 7 Formation of IEF, band bending and photogenerated charge transfer mechanism before and after BiOBr and ZnMoO4 contact

Fig. 8 Radical trapping experiment of 15% BiOBr/ZnMoO4

Fig. 9 S-scheme heterojunction photocatalytic mechanism of BiOBr/ZnMoO4 photocatalyst

Fig. S1 Cycling test (a) of 15% BiOBr/ZnMoO4 degradation of BPA and XRD spectra before and after photocatalytic cycling (b)

Fig. S2 Transient photocurrent response curves (a) and electrochemical impedance spectra (b)

Fig. S3 Mott-Schottky curves of BiOBr (a) and ZnMoO4 (b); UV-Vis DRS of samples (c); Tauc plots of BiOBr and ZnMoO4 (d)

Fig. S4 ESR detection results of 15% BiOBr/ZnMoO4: DMPO-·OH (a) and DMPO-·O2- (b)

References 49

[1]	XUE W J, HUANG D L, WEN X J, et al. Silver-based semiconductor Z-scheme photocatalytic systems for environmental purification. Journal of Hazardous Materials, 2020, 390: 122128.
[2]	WANG S B, HAN X, ZHANG Y H, et al. Inside-and-out semiconductor engineering for CO₂ photoreduction: from recent advances to new trends. Small Structures, 2021, 2(1): 2000061. DOI URL
[3]	LIU M M, LIU G, LIU X M, et al. One-pot synthesis of m-Bi₂O₄/Bi₂O_4-_x/BiOCl with enhanced photocatalytic activity for BPA and CIP under visible-light. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2022, 643: 128772. DOI URL
[4]	DONG S Y, XIA L J, CHEN X Y, et al. Interfacial and electronic band structure optimization for the adsorption and visible-light photocatalytic activity of macroscopic ZnSnO₃/graphene aerogel. Composites Part B: Engineering, 2021, 215: 108765.
[5]	HAN W M, WU T, WU Q S. Fabrication of WO₃/Bi₂MoO₆ heterostructures with efficient and highly selective photocatalytic degradation of tetracycline hydrochloride. Journal of Colloid and Interface Science, 2021, 602: 544. DOI URL
[6]	MA Y C, LÜ C, HOU J H, et al. 3D hollow hierarchical structures based on 1D BiOCl nanorods intersected with 2D Bi₂WO₆ nanosheets for efficient photocatalysis under visible light. Nanomaterials, 2019, 9(3): 322. DOI URL
[7]	DONG S Y, ZHAO Y L, YANG J Y, et al. Visible-light responsive PDI/rGO composite film for the photothermal catalytic degradation of antibiotic wastewater and interfacial water evaporation. Applied Catalysis B: Environmental, 2021, 291: 120127. DOI URL
[8]	LI P J, CAO W, ZHU Y, et al. NaOH-induced formation of 3D flower-sphere BiOBr/Bi₄O₅Br₂ with proper-oxygen vacancies via in-situ self-template phase transformation method for antibiotic photodegradatio n. Science of The Total Environment, 2020, 715: 136809. DOI URL
[9]	DONG S Y, CUI L F, TIAN Y J, et al. A novel and high- performance double Z-scheme photocatalyst ZnO-SnO₂-Zn₂SnO₄ for effective removal of the biological toxicity of antibiotics. Journal of Hazardous Materials, 2020, 399: 123017. DOI URL
[10]	WANG W W, LI X B, DENG F, et al. Novel organic/inorganic PDI-urea/BiOBr S-scheme heterojunction for improved photocatalytic antibiotic degradation and H₂O₂ production. Chinese Chemical Letters, 2022, 33: 5200. DOI URL
[11]	LI X B, KANG B B, DONG F, et al. BiOBr with oxygen vacancies capture 0D black phosphorus quantum dots for high efficient photocatalytic ofloxocin degradation. Applied Surface Science, 2022, 593: 153422. DOI URL
[12]	PARUL, KAUR K, BADRU R, et al. Photodegradation of organic pollutants using heterojunctions: a review. Journal of Environmental Chemical Engineering, 2020, 8(2): 103666. DOI URL
[13]	LI M, ZHANG Y H, LI X W, et al. Nature-derived approach to oxygen and chlorine dual-vacancies for efficient photocatalysis and photoelectrochemistry. ACS Sustainable Chemistry & Engineering, 2018, 6(2): 2395.
[14]	LIU Y, HU Z F, YU J C. Photocatalytic degradation of ibuprofen on S-doped BiOBr. Chemosphere, 2021, 278: 130376.
[15]	LI X B, LIU Q, DENG F, et al. Double-defect-induced polarization enhanced O_V-BiOBr/Cu_2-_xS high-low junction for boosted photoelectrochemical hydrogen evolution. Applied Catalysis B: Environmental, 2022, 314: 121502. DOI URL
[16]	ZHAO G Q, HU J, ZOU J, et al. Modulation of BiOBr-based photocatalysts for energy and environmental application: a critical review. Journal of Environmental Chemical Engineering, 2022, 10(2): 107226. DOI URL
[17]	YU H B, HUANG J H, JIANG L B, et al. Enhanced photocatalytic tetracycline degradation using N-CQDs/OV-BiOBr composites: unraveling the complementary effects between N-CQDs and oxygen vacancy. Chemical Engineering Journal, 2020, 402: 126187. DOI URL
[18]	WANG Z W, CHEN M, HUANG D L, et al. Multiply structural optimized strategies for bismuth oxyhalide photocatalysis and their environmental application. Chemical Engineering Journal, 2019, 374: 1025. DOI URL
[19]	ZHANG Y, SUN K, WU D, et al. Localized surface plasmon resonance enhanced photocatalytic activity via MoO₂/BiOBr nanohybrids under visible and NIR light. ChemCatChem, 2019, 11(10): 2546. DOI URL
[20]	WANG Y Y, JIANG W J, LUO W J, et al. Ultrathin nanosheets g-C₃N₄@Bi₂WO₆core-shell structure via low temperature reassembled strategy to promote photocatalytic activity. Applied Catalysis B: Environmental, 2018, 237: 633. DOI URL
[21]	LI H F, MA A Q, ZHANG D, et al. Rational design direct Z-scheme BiOBr/g-C₃N₄ heterojunction with enhanced visible photocatalytic activity for organic pollutants elimination. RSC Advances, 2020, 10(8): 4681. DOI URL
[22]	YANG X T, ZHANG X, WU T, et al. Novel approach for preparation of three-dimensional BiOBr/BiOI hybrid nanocomposites and their removal performance of antibiotics in water. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020, 605: 125344. DOI URL
[23]	GUO L X, CHEN Y D, REN Z Q, et al. Morphology engineering of type-II heterojunction nanoarrays for improved sonophotocatalytic capability. Ultrasonics Sonochemistry, 2021, 81: 105849. DOI URL
[24]	FU Y M, REN Z Q, WU J Z, et al. Direct Z-scheme heterojunction of ZnO/MoS₂ nanoarrays realized by flowing-induced piezoelectric field for enhanced sunlight photocatalytic performances. Applied Catalysis B: Environmental, 2021, 285: 119785. DOI URL
[25]	CHEN F, MA Z Y, YE L Q, et al. Macroscopic spontaneous polarization and surface oxygen vacancies collaboratively boosting CO₂ photoreduction on BiOIO₃ single crystals. Advanced Materials, 2020, 32(11): 1908350.
[26]	HUANG H W, TU S C, ZENG C, et al. Macroscopic polarization enhancement promoting photo- and piezoelectric-induced charge separation and molecular oxygen activation. Angewandte Chemie International Edition, 2017, 56(39): 11860. DOI URL
[27]	NGUYEN T T, PHAM T D, CUONG L M, et al. Development of Nb-NiMoO₄/g-C₃N₄ direct Z scheme heterojunctions for effective photocatalytic conversion of carbon dioxide to valuable products. Sustainable Chemistry and Pharmacy, 2022, 26: 100641. DOI URL
[28]	LIU Z L, XU J, XIANG C J, et al. S-scheme heterojunction based on ZnS/CoMoO₄ ball-and-rod composite photocatalyst to promote photocatalytic hydrogen production. Applied Surface Science, 2021, 569: 150973. DOI URL
[29]	PAUL A, DHAR S S. Construction of hierarchical MnMoO₄/NiFe₂O₄ nanocomposite: highly efficient visible light driven photocatalyst in the degradation of different polluting dyes in aqueous medium. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020, 585: 124090. DOI URL
[30]	SUN Y J, WANG H, XING Q, et al. The pivotal effects of oxygen vacancy on Bi₂MoO₆: promoted visible light photocatalytic activity and reaction mechanism. Chinese Journal of Catalysis, 2019, 40(5): 647. DOI URL
[31]	NATARAJAN K, DAVE S, BAJAJ H C, et al. Enhanced photocatalytic degradation of nitrobenzene using MWCNT/β-ZnMoO₄ composites under UV light emitting diodes (LEDs). Materials Today Chemistry, 2020, 17: 100331. DOI URL
[32]	JIANG Y R, LEE W W, CHEN K T, et al. Hydrothermal synthesis of β-ZnMoO₄ crystals and their photocatalytic degradation of Victoria Blue R and phenol. Journal of the Taiwan Institute of Chemical Engineers, 2014, 45(1): 207. DOI URL
[33]	RAY S K, HUR J A. review on monoclinic metal molybdate photocatalyst for environmental remediation. Journal of Industrial and Engineering Chemistry, 2021, 101: 28. DOI URL
[34]	MAFA P J, NTSENDWANA B, MAMBA B B, et al. Visible light driven ZnMoO₄/BiFeWO₆/rGO Z-scheme photocatalyst for the degradation of anthraquinonic dye. The Journal of Physical Chemistry C, 2019, 123(33): 20605. DOI URL
[35]	YAN Q S, WANG P Y, GUO Y, et al. Constructing a novel hierarchical ZnMoO₄/BiOI heterojunction for efficient photocatalytic degradation of tetracycline. Journal of Materials Science: Materials in Electronics, 2019, 30(20): 19069. DOI URL
[36]	CHEN P, ZHANG Z, YANG S J, et al. Synthesis of BiOCl/ZnMoO₄ heterojunction with oxygen vacancy for enhanced photocatalytic activity. Journal of Materials Science: Materials in Electronics, 2021, 32(18): 23189. DOI URL
[37]	LI X B, LUO Q N, HAN L, et al. Enhanced photocatalytic degradation and H₂ evolution performance of NCDs/S-C₃N₄ S-scheme heterojunction constructed by π-π conjugate self-assembly. Journal of Materials Science & Technology, 2022, 114: 222.
[38]	LI S J, WANG C C, CAI M J, et al. Facile fabrication of TaON/Bi₂MoO₆ core-shell S-scheme heterojunction nanofibers for boosting visible-light catalytic levofloxacin degradation and Cr(VI) reduction. Chemical Engineering Journal, 2022, 428: 131158. DOI URL
[39]	DONG H, GUO X T, YANG C, et al. Synthesis of g-C₃N₄ by different precursors under burning explosion effect and its photocatalytic degradation for tylosin. Applied Catalysis B: Environmental, 2018, 230: 65. DOI URL
[40]	ZHANG B, HU X Y, LIU E Z, et al. Novel S-scheme 2D/2D BiOBr/g-C₃N₄heterojunctions with enhanced photocatalytic activity. Chinese Journal of Catalysis, 2021, 42(9): 1519. DOI URL
[41]	LI X B, KANG B B, DONG F, et al. Enhanced photocatalytic degradation and H₂/H₂O₂ production performance of S-pCN/WO_2.72 S-scheme heterojunction with appropriate surface oxygen vacancies. Nano Energy, 2021, 81: 105671. DOI URL
[42]	WANG L B, CHENG B, ZHANG L Y, et al. In situ irradiated XPS investigation on S-scheme TiO₂@ZnIn₂S₄ photocatalyst for efficient photocatalytic CO₂ reduction. Small, 2021, 17(41): 2103447. DOI URL
[43]	LI H P, HU T X, DU N, et al. Wavelength-dependent differences in photocatalytic performance between BiOBr nanosheets with dominant exposed (001) and (010) facets. Applied Catalysis B: Environmental, 2016, 187: 342. DOI URL
[44]	LI X W, SUN Y J, XIONG T, et al. Activation of amorphous bismuth oxide via plasmonic Bi metal for efficient visible-light photocatalysis. Journal of Catalysis, 2017, 352: 102. DOI URL
[45]	LI X B, XIONG J, GAO X M, et al. Novel BP/BiOBr S-scheme nano-heterojunction for enhanced visible-light photocatalytic tetracycline removal and oxygen evolution activity. Journal of Hazardous Materials, 2020, 387: 121690. DOI URL
[46]	XING X T, XU X Y, WANG J H, et al. Preparation and inhibition behavior of ZnMoO₄/reduced graphene oxide composite for Q235 steel in NaCl solution. Applied Surface Science, 2019, 479: 835. DOI URL
[47]	FENG C Y, TANG L, DENG Y C, et al. Synthesis of branched WO₃@W₁₈O₄₉ homojunction with enhanced interfacial charge separation and full-spectrum photocatalytic performance. Chemical Engineering Journal, 2020, 389: 124474. DOI URL
[48]	XIONG J, LI X B, HUANG J T, et al. CN/rGO@BPQDs high-low junctions with stretching spatial charge separation ability for photocatalytic degradation and H₂O₂ production. Applied Catalysis B: Environmental, 2020, 266: 118602. DOI URL
[49]	WANG W J, NIU Q Y, ZENG G M, et al. 1D porous tubular g-C₃N₄ capture black phosphorus quantum dots as 1D/0D metal-free photocatalysts for oxytetracycline hydrochloride degradation and hexavalent chromium reduction. Applied Catalysis B: Environmental, 2020, 273: 119051. DOI URL

BiOBr/ZnMoO₄ Step-scheme Heterojunction: Construction and Photocatalytic Degradation Properties

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 13

References 49

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	TUERHONG Munire, ZHAO Honggang, MA Yuhua, QI Xianhui, LI Yuchen, YAN Chenxiang, LI Jiawen, CHEN Ping. Construction and Photocatalytic Activity of Monoclinic Tungsten Oxide/Red Phosphorus Step-scheme Heterojunction [J]. Journal of Inorganic Materials, 2023, 38(6): 701-707.
[2]	WU Lin, HU Minglei, WANG Liping, HUANG Shaomeng, ZHOU Xiangyuan. Preparation of TiHAP@g-C₃N₄ Heterojunction and Photocatalytic Degradation of Methyl Orange [J]. Journal of Inorganic Materials, 2023, 38(5): 503-510.
[3]	CHEN Hanxiang, ZHOU Min, MO Zhao, YI Jianjian, LI Huaming, XU Hui. 0D/2D CoN/g-C₃N₄ Composites: Structure and Photocatalytic Performance for Hydrogen Production [J]. Journal of Inorganic Materials, 2022, 37(9): 1001-1008.
[4]	XUE Hongyun, WANG Congyu, MAHMOOD Asad, YU Jiajun, WANG Yan, XIE Xiaofeng, SUN Jing. Two-dimensional g-C₃N₄ Compositing with Ag-TiO₂ as Deactivation Resistant Photocatalyst for Degradation of Gaseous Acetaldehyde [J]. Journal of Inorganic Materials, 2022, 37(8): 865-872.
[5]	CHI Congcong, QU Panpan, REN Chaonan, XU Xin, BAI Feifei, ZHANG Danjie. Preparation of SiO₂@Ag@SiO₂@TiO₂ Core-shell Structure and Its Photocatalytic Degradation Property [J]. Journal of Inorganic Materials, 2022, 37(7): 750-756.
[6]	WANG Xiaojun, XU Wen, LIU Runlu, PAN Hui, ZHU Shenmin. Preparation and Properties of Ag@C₃N₄ Photocatalyst Supported by Hydrogel [J]. Journal of Inorganic Materials, 2022, 37(7): 731-740.
[7]	LIU Xuechen, ZENG Di, ZHOU Yuanyi, WANG Haipeng, ZHANG Ling, WANG Wenzhong. Selective Oxidation of Biomass over Modified Carbon Nitride Photocatalysts [J]. Journal of Inorganic Materials, 2022, 37(1): 38-44.
[8]	ZHANG Xian, ZHANG Ce, JIANG Wenjun, FENG Deqiang, YAO Wei. Synthesis, Electronic Structure and Visible Light Photocatalytic Performance of Quaternary BiMnVO₅ [J]. Journal of Inorganic Materials, 2022, 37(1): 58-64.
[9]	LIU Peng, WU Shimiao, WU Yunfeng, ZHANG Ning. Synthesis of Zn_0.4(CuGa)_0.3Ga₂S₄/CdS Photocatalyst for CO₂ Reduction [J]. Journal of Inorganic Materials, 2022, 37(1): 15-21.
[10]	WANG Luping, LU Zhanhui, WEI Xin, FANG Ming, WANG Xiangke. Application of Improved Grey Model in Photocatalytic Data Prediction [J]. Journal of Inorganic Materials, 2021, 36(8): 871-876.
[11]	AN Weijia, LI Jing, WANG Shuyao, HU Jinshan, LIN Zaiyuan, CUI Wenquan, LIU Li, XIE Jun, LIANG Yinghua. Fe(III)/rGO/Bi₂MoO₆ Composite Photocatalyst Preparation and Phenol Degradation by Photocatalytic Fenton Synergy [J]. Journal of Inorganic Materials, 2021, 36(6): 615-622.
[12]	XIAO Xiang, GUO Shaoke, DING Cheng, ZHANG Zhijie, HUANG Hairui, XU Jiayue. CsPbBr₃@TiO₂ Core-shell Structure Nanocomposite as Water Stable and Efficient Visible-light-driven Photocatalyst [J]. Journal of Inorganic Materials, 2021, 36(5): 507-512.
[13]	XIONG Jinyan, LUO Qiang, ZHAO Kai, ZHANG Mengmeng, HAN Chao, CHENG Gang. Facilely Anchoring Cu nanoparticles on WO₃ Nanocubes for Enhanced Photocatalysis through Efficient Interface Charge Transfer [J]. Journal of Inorganic Materials, 2021, 36(3): 325-331.
[14]	SHU Mengyang, LU Jialin, ZHANG Zhijie, SHEN Tao, XU Jiayue. CsPbBr₃ Perovskite Quantum Dots/Ultrathin C₃N₄ Nanosheet 0D/2D Composite: Enhanced Stability and Photocatalytic Activity [J]. Journal of Inorganic Materials, 2021, 36(11): 1217-1222.
[15]	LIU Yaxin, WANG Min, SHEN Meng, WANG Qiang, ZHANG Lingxia. Bi-doped Ceria with Increased Oxygen Vacancy for Enhanced CO₂ Photoreduction Performance [J]. Journal of Inorganic Materials, 2021, 36(1): 88-94.