1
|
Cao H, Yin Z, Dong X, Li Y, Yang Y, Qiu J, Yang Z, Song Z. Enhancing the near-infrared upconversion photocatalytic activity of ZnO/Bi 3Ti 2O 8F:Yb 3+, Er 3+ by modulating the internal electric field through Z-scheme heterojunction construction. J Colloid Interface Sci 2024; 674:79-91. [PMID: 38917714 DOI: 10.1016/j.jcis.2024.06.161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 06/20/2024] [Accepted: 06/22/2024] [Indexed: 06/27/2024]
Abstract
Exploring strategies to improve the near-infrared response of photocatalysts is an urgent challenge that can be overcome by utilizing upconversion (UC) luminescence to enhance photocatalysis. This paper reports the fabrication of a ZnO/Bi3Ti2O8F:Yb3+, Er3+ (ZnO/BTOFYE) Z-scheme heterojunction based on a Bi3Ti2O8F:Yb3+, Er3+ (BTOFYE) UC photocatalyst via electrostatic self-assembly. Fermi energy difference at the interface of BTOFYE and ZnO generates a strong internal electric field (IEF) in the Z-scheme heterojunction, offering a novel charge transfer mode that promotes carrier transfer and separation while retaining the strong redox capability. These results are confirmed through in situ X-ray photoelectron spectroscopy, in situ Kelvin probe force microscopy, electron spin resonance, and density functional theory calculations. In addition, the effect of the IEF on the UC luminescence process of Er3+ enhances the luminescence intensity, considerably improving the UC utilization efficiency. The optimal ZnO/BTOFYE degrades 64 % of ciprofloxacin in 120 min, which is 2.3 times more than that degraded by BTOFYE. Overall, the results of this study offer a reference for the rational development of high efficiency UC photocatalysts by generating IEF in Z-scheme heterojunctions.
Collapse
Affiliation(s)
- Haomiao Cao
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 50093, China
| | - Zhaoyi Yin
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 50093, China
| | - Xiaoyi Dong
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 50093, China
| | - Yongjin Li
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 50093, China.
| | - Yong Yang
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 50093, China
| | - Jianbei Qiu
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 50093, China
| | - Zhengwen Yang
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 50093, China
| | - Zhiguo Song
- Faculty of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 50093, China.
| |
Collapse
|
2
|
Song Y, Bao Z, Gu Y. Photocatalytic Enhancement Strategy with the Introduction of Metallic Bi: A Review on Bi/Semiconductor Photocatalysts. CHEM REC 2024; 24:e202300307. [PMID: 38084448 DOI: 10.1002/tcr.202300307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/17/2023] [Indexed: 03/10/2024]
Abstract
Semiconductor photocatalysis has great potential in the fields of solar fuel production and environmental remediation. Nevertheless, the photocatalytic efficiency still constrains its practical production applications. The development of new semiconductor materials is essential to enhance the solar energy conversion efficiency of photocatalytic systems. Recently, the research on enhancing the photocatalytic performance of semiconductors by introducing bismuth (Bi) has attracted widespread attention. In this review, we briefly overview the main synthesis methods of Bi/semiconductor photocatalysts and summarize the control of the micromorphology of Bi in Bi/semiconductors and the key role of Bi in the catalytic system. In addition, the promising applications of Bi/semiconductors in photocatalysis, such as pollutant degradation, sterilization, water separation, CO2 reduction, and N2 fixation, are outlined. Finally, an outlook on the challenges and future research directions of Bi/semiconductor photocatalysts is given. We aim to offer guidance for the rational design and synthesis of high-efficiency Bi/semiconductor photocatalysts for energy and environmental applications.
Collapse
Affiliation(s)
- Yankai Song
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Zongqi Bao
- Foreign Language Department, University of Shanghai for Science and Technology, Shanghai, 200093, China
| | - Yingying Gu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai, 200093, China
| |
Collapse
|
3
|
Yu L, Wang Y, Su X, Liu C, Xue K, Luo H, Zhang Y, Zhu H. In Situ Construction of Near-Infrared Response Hybrid Up-Conversion Photocatalyst for Degrading Organic Dyes and Antibiotics. Molecules 2023; 28:6674. [PMID: 37764450 PMCID: PMC10534851 DOI: 10.3390/molecules28186674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2023] [Revised: 09/12/2023] [Accepted: 09/16/2023] [Indexed: 09/29/2023] Open
Abstract
Unique nonlinear optical properties for converting low-energy incident light into high-energy radiation enable up-conversion materials to be employed in photocatalytic systems. An efficient near-infrared (NIR) response photocatalyst was successfully fabricated through a facile two-step method to load BiOBr on the Nd3+, Er3+@NaYF4 (NE@NYF) up-conversion material. The NE@NYF can transform NIR into visible and UV light and promote charge-energy transfer in the semiconductor. Consequently, the as-obtained photocatalysts exhibit excellent photodegradation performance for rhodamine B dye (RhB) and tetracycline (TC) organic pollutants. About 98.9% of the RhB was decomposed within 60 min with the 20% NE@NYF-B sample, outperforming the pristine BiOBr (61.9%). In addition, the 20% NE@NYF-B composite could decompose approximately 72.7% of the organic carbon during a 10 h reaction, which was almost two-fold more than that of BiOBr. Meanwhile, a possible charge transfer mechanism is proposed based on the recombination of electron-hole pairs and reactive oxygen species. This work provides a rational hybrid structure photocatalyst for improving photocatalytic performance in the broadband spectrum and provides a new strategy for NIR light utilization.
Collapse
Affiliation(s)
- Lianqing Yu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, China; (Y.W.); (C.L.); (K.X.); (H.L.)
| | - Yankun Wang
- School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, China; (Y.W.); (C.L.); (K.X.); (H.L.)
| | - Xinhai Su
- School of Chemical and Environmental Engineering, Hanshan Normal University, Chaozhou 521041, China;
| | - Chong Liu
- School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, China; (Y.W.); (C.L.); (K.X.); (H.L.)
| | - Kehui Xue
- School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, China; (Y.W.); (C.L.); (K.X.); (H.L.)
| | - Huihua Luo
- School of Materials Science and Engineering, China University of Petroleum, Qingdao 266580, China; (Y.W.); (C.L.); (K.X.); (H.L.)
| | - Yaping Zhang
- College of Science, China University of Petroleum, Qingdao 266580, China; (Y.Z.); (H.Z.)
| | - Haifeng Zhu
- College of Science, China University of Petroleum, Qingdao 266580, China; (Y.Z.); (H.Z.)
| |
Collapse
|
4
|
Wu Q, Lai X, Ji XH, Jiang H, Du P. Improved visible light triggered photocatalytic activities of BiOCl photocatalysts via a synergistic effect of doping and heterojunction engineering. Phys Chem Chem Phys 2023; 25:22819-22831. [PMID: 37584164 DOI: 10.1039/d3cp02381h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
To manipulate the photocatalytic activities of BiOCl photocatalysts, doping and heterojunction engineering are simultaneously adopted. Herein, the photocatalysts Sm3+-doped BiOCl and BiOCl:Sm3+@yg-C3N4 were designed, in which their phase structure, morphology, optical properties and photocatalytic activities were systematically discussed. Excited at 408 nm, red emissions are seen from Sm3+-doped BiOCl microplates and their intensities were impacted by doping content, reaching the maximum value when the Sm3+ content was 1 mol% and the involved concentration mechanism was dominated by quadrupole-quadrupole interaction. Through analyzing the degradation of TC, the visible light triggered photocatalytic behaviors of the resultant compounds were studied. Compared with BiOCl microplates, an improved TC removal ability was seen in Sm3+-doped BiOCl microplates and the products with a Sm3+ content of 0.5 mol% show the best performance. Moreover, through constructing the heterojunction with g-C3N4, the TC removal capacity was further enhanced and the BiOCl:Sm3+@60%g-C3N4 exhibits the optimal photocatalytic activity, which was also much better than that of the commercial SnO2 and TiO2. Accordingly, the ˙O2-, h+ and ˙OH active species were proven to contribute to the involved visible light driven photocatalytic mechanism. Furthermore, the separation and recombination of photogenerated carries via the Z-scheme transfer process in the designed heterojunction composites, led to splendid photocatalytic properties. Additionally, it was verified that the TC solution treated with synthesized compounds was nontoxic toward plant growth. Our findings may propose an available route to regulate the photocatalytic performance of the visible light driven photocatalysts.
Collapse
Affiliation(s)
- Qian Wu
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, 315211 Ningbo, Zhejiang, China.
| | - Xiaoqing Lai
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, 315211 Ningbo, Zhejiang, China.
| | - Xiao-Hui Ji
- Shaanxi Province Key Laboratory of Catalysis, College of Chemical & Environment Science, Shaanxi University of Technology, Hanzhong 723001, P. R. China
| | - Hai Jiang
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, 315211 Ningbo, Zhejiang, China.
| | - Peng Du
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, 315211 Ningbo, Zhejiang, China.
| |
Collapse
|
5
|
Gao F, Fan D, Xiao M, Liu H, Liu Y, Zhang J, Fang M, Tan X, Kong M. Insights into the highly efficient SPR enhanced photodegradation of tetracycline by Bi/Bi 2MoO 6 composites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:66696-66704. [PMID: 37099094 DOI: 10.1007/s11356-023-27091-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 04/13/2023] [Indexed: 05/25/2023]
Abstract
A Bi/Bi2MoO6 nanocomposite is fabricated utilizing a simple one-pot solvothermal method, which shows great photodegradation ability to tetracycline (TC). The effect of Bi0 nanoparticles on the photodegradation of TC was investigated, and it is ascribed to the surface plasmonic resonance (SPR) effect. The light energy could be strongly absorbed by the Bi0 nanoparticles, and then transferred to the adjacent Bi2MoO6, to enhance the photocatalytic performance. The results of the sacrifice experiment and quantitative analysis of active radicals showed that the photoelectrons could react with soluble O2 and ·OH to form ·O2-, which finally dominates in the process of photocatalytic degradation of TC. This work proposed a way to construct a highly efficient photocatalyst based on SPR effect, which has great application potential in environmental treatment.
Collapse
Affiliation(s)
- Feixue Gao
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, People's Republic of China
| | - Dezhe Fan
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, People's Republic of China
| | - Muliang Xiao
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, People's Republic of China
| | - Hangxi Liu
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, People's Republic of China
| | - Yuxin Liu
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, People's Republic of China
| | - Jing Zhang
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, People's Republic of China
| | - Ming Fang
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, People's Republic of China.
| | - Xiaoli Tan
- MOE Key Laboratory of Resources and Environmental System Optimization, College of Environmental Science and Engineering, North China Electric Power University, Beijing, 102206, People's Republic of China
| | - Mingguang Kong
- Key Laboratory of Materials Physics, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, Anhui, 230031, People's Republic of China
| |
Collapse
|
6
|
Li Y, Ma J, Xu L, Liu T, Xiao T, Chen D, Song Z, Qiu J, Zhang Y. Enhancement of Charge Separation and NIR Light Harvesting through Construction of 2D-2D Bi 4 O 5 I 2 /BiOBr:Yb 3+ , Er 3+ Z-Scheme Heterojunctions for Improved Full-Spectrum Photocatalytic Performance. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207514. [PMID: 36808714 PMCID: PMC10161072 DOI: 10.1002/advs.202207514] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 02/02/2023] [Indexed: 05/06/2023]
Abstract
Developing full-spectrum photocatalysts with simultaneous broadband light absorption, excellent charge separation, and high redox capabilities is becoming increasingly significant. Herein, inspired by the similarities in crystalline structures and compositions, a unique 2D-2D Bi4 O5 I2 /BiOBr:Yb3+ ,Er3+ (BI-BYE) Z-scheme heterojunction with upconversion (UC) functionality is successfully designed and fabricated. The co-doped Yb3+ and Er3+ harvest near-infrared (NIR) light and then convert it into visible light via the UC function, expanding the optical response range of the photocatalytic system. The intimate 2D-2D interface contact provides more charge migration channels and enhances the Förster resonant energy transfer of BI-BYE, leading to significantly improved NIR light utilization efficiency. Density functional theory (DFT) calculations and experimental results confirm that the Z-scheme heterojunction is formed and that this heterojunction endows the BI-BYE heterostructure with high charge separation and strong redox capability. Benefit from these synergies, the optimized 75BI-25BYE heterostructure exhibits the highest photocatalytic performance for Bisphenol A (BPA) degradation under full-spectrum and NIR light irradiation, outperforming BYE by 6.0 and 5.3 times, respectively. This work paves an effective approach for designing highly efficient full-spectrum responsive Z-scheme heterojunction photocatalysts with UC function.
Collapse
Affiliation(s)
- Yongjin Li
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Junhao Ma
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Liang Xu
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Tong Liu
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| | - Taizhong Xiao
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Daomei Chen
- National Center for International Research on Photoelectric and Energy Materials, School of Materials and Energy, Yunnan University, Kunming, 650091, P. R. China
| | - Zhiguo Song
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Jianbei Qiu
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, P. R. China
| | - Yueli Zhang
- State Key Laboratory of Optoelectronic Materials and Technologies, School of Materials Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, P. R. China
| |
Collapse
|
7
|
Yao X, Jiang X, Zhang D, Lu S, Wang M, Pan S, Pu X, Liu J, Cai P. Achieving improved full-spectrum responsive 0D/3D CuWO 4/BiOBr:Yb 3+,Er 3+ photocatalyst with synergetic effects of up-conversion, photothermal effect and direct Z-scheme heterojunction. J Colloid Interface Sci 2023; 644:95-106. [PMID: 37094476 DOI: 10.1016/j.jcis.2023.04.072] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2023] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 04/26/2023]
Abstract
The key to obtain effective photocatalysts is to increase the efficiency of light energy conversion, and thus the design and implementation of full-spectrum photocatalysts is a potential approach to solve this problem especially by extending the absorption range to near-infrared (NIR) light. Herein, the improved full-spectrum responsive CuWO4/BiOBr:Yb3+,Er3+ (CW/BYE) direct Z-scheme heterojunction was prepared. The CW/BYE with CW mass ratio of 5% had the best degradation performance, and the removal rate of tetracycline reached 93.9% in 60 min and 69.4% in 12 h under visible (Vis) and NIR light, respectively, which were 5.2 and 3.3 times of BYE. According to the outcome of experimental, the reasonable mechanism of improved photoactivity was put forward on the basis of (i) the up-conversion (UC) effect of Er3+ ion to convert NIR photon to ultraviolet or visible light, which can be used by CW and BYE, (ii) the photothermal effect of CW to absorb the NIR light, increasing the local temperature of photocatalyst particle to accelerate the photoreaction, and (iii) the formed direct Z-scheme heterojunction between BYE and CW to boost the separation of photogenerated electron-hole pairs. Additionally, the excellent photostability of the photocatalyst was verified by cycle degradation experiments. This work opens up a promising technique for designing and synthesizing full-spectrum photocatalysts by utilizing synergetic effects of UC, photothermal effect and direct Z-scheme heterojunction.
Collapse
Affiliation(s)
- Xintong Yao
- School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China
| | - Xue Jiang
- School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China
| | - Dafeng Zhang
- School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China.
| | - Shuya Lu
- School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China
| | - Mengyao Wang
- School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China
| | - Sihan Pan
- School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China
| | - Xipeng Pu
- School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China.
| | - Junchang Liu
- School of Materials Science and Engineering, Shandong Provincial Key Laboratory of Chemical Energy Storage and Novel Cell Technology, Liaocheng University, Liaocheng 252000, PR China
| | - Peiqing Cai
- College of Optical and Electronic Technology, China Jiliang University, Hangzhou 310018, PR China
| |
Collapse
|
8
|
Surfactant-assisted synthesis of highly dispersed ZnS(C) /BiOBr/GO ternary composites for effectively improve the degradation ability of organic pollutants under visible light. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
|
9
|
Liu X, Wang Y, Wang Q, Yang W. Chloroplast inspired Z-scheme photocatalyst for efficient degradation of antibiotics: synergistic effect of full-visible light response, multi-channel electron transport and enhanced molecular oxygen activation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
|
10
|
Simultaneous enhancement of charge transfer and light absorption via construction of atom–sharing Bi/Bi3Ti2O8F:Yb3+,Er3+ plasmonic heterojunctions for the efficient degradation of ciprofloxacin. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
11
|
Yu W, Wang Y, Wan S, Sun L, Yu Z. Ultrahigh-efficient BiOBr-x%La@y%CNQDs nanocomposites with enhanced generation and separation of photogenerated carriers towards bisphenol A degradation and toxicity reduction. CHEMOSPHERE 2022; 308:136390. [PMID: 36113661 DOI: 10.1016/j.chemosphere.2022.136390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/26/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
In this study, a series of hierarchical flower-like La-doped BiOBr composites modified with carbon nitride quantum dots (BiOBr-x%La@y%CNQDs) was synthesized using a microwave solvothermal method in combination with a calcination method. It was found that La doping and CNQDs co-decorated with BiOBr showed much better photoreactivity for bisphenol A (BPA) degradation than pure BiOBr. The best degradation and mineralization efficiencies of BPA were 100% and 77% within 12 min at La and CNQDs contents of 1% and 1.25%, respectively. Various characterization results demonstrated that this synergistic effect on BiOBr-1%La@1.25%CNQDs was attributed to its improved light-harvesting properties, enhanced photogenerated electron and holes pairs separation and interfacial charge transfer. Degradation pathways were proposed based on active species analysis, identification of nine intermediates, and density functional theory (DFT) calculations. Furthermore, a bioluminescence assay of the inhibition rate of the luminescent bacterium Vibrio qinghaiensis sp. Q67 showed that BiOBr-1%La@1.25%CNQDs have superior detoxification ability. The present study provides some insight into the design of ultrahigh-efficiency nanojunction photocatalysts with a broadened photoabsorption range and improved separation efficiency of photogenerated carriers to enhance the degradation and detoxification performance of BPA.
Collapse
Affiliation(s)
- Weili Yu
- Hainan University, Haikou, 570228, PR China
| | - Yan Wang
- Hainan University, Haikou, 570228, PR China
| | - Shungang Wan
- Hainan University, Haikou, 570228, PR China; Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, Haikou, 570228, PR China
| | - Lei Sun
- Hainan University, Haikou, 570228, PR China; Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, Haikou, 570228, PR China.
| | - Zebin Yu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
| |
Collapse
|
12
|
Enhanced internal field of Bi4NbO8Cl ferroelectric photocatalyst to promote charge separation via constructing crystal plane-dependent BiOI dielectric layer. J Colloid Interface Sci 2022; 626:405-415. [DOI: 10.1016/j.jcis.2022.06.136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/15/2022] [Accepted: 06/25/2022] [Indexed: 11/24/2022]
|
13
|
Du P, Luo L, Wang D, Li W, Wang D, Mai Z, Wang Y, Ran W, Xing G. Visible-near-Infrared Light-Driven Photocatalytic Characteristics of Er 3+/Yb 3+-Codoped BiOBr Upconverting Microparticles for Tetracycline Degradation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:12005-12015. [PMID: 36121454 DOI: 10.1021/acs.langmuir.2c01769] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
To settle the unsatisfying efficiency and insufficient light harvesting ability of photocatalysts, we report on the development of Er3+/Yb3+-codoped BiOBr (BiOBr:Er3+/xYb3+) microparticles that were synthesized by a rational high-temperature solid-state reaction method. The prepared microcrystals exhibit high visible upconversion (UC) emissions with maximum intensities at x = 0.01 when excited by a 980 nm laser. Remarkably, the corresponding UC emission process is attributed to a two-photon absorption route. Furthermore, the photocatalytic activities of as-synthesized compounds were further evaluated through analyzing the visible-near-infrared light-triggered tetracycline degradation. Compared with BiOBr:Er3+ microparticles, BiOBr:Er3+/xYb3+ microparticles present superior photocatalytic properties and the optimal status is achieved when x = 0.05, in which h+, ·O2-, and ·OH active species contribute to the photocatalytic mechanism. Additionally, the designed microparticles exhibit better photocatalytic abilities than previously reported photocatalysts (i.e., TiO2, SnO2) upon full-spectrum light irradiation. These results reveal that Yb3+ codoping is able to not only enhance the UC emission properties of BiOBr:Er3+ microparticles but also reinforce their photocatalytic activities. Our findings may put forward a facile strategy to regulate the photodegradation capacity of photcatalysts.
Collapse
Affiliation(s)
- Peng Du
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang China
| | - Laihui Luo
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang China
| | - Di Wang
- Key Laboratory of Microelectronic Devices & Integrated Technology, Institute of Microelectronics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100029, China
| | - Weiping Li
- Department of Microelectronic Science and Engineering, School of Physical Science and Technology, Ningbo University, Ningbo 315211, Zhejiang China
| | - Dandan Wang
- Hubei JiuFengShan Laboratory, Future Science and Technology City, Wuhan, Hubei 420000, China
| | - Zhihong Mai
- Hubei JiuFengShan Laboratory, Future Science and Technology City, Wuhan, Hubei 420000, China
| | - Ye Wang
- Key Laboratory of Material Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Weiguang Ran
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Guozhong Xing
- Key Laboratory of Microelectronic Devices & Integrated Technology, Institute of Microelectronics, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100029, China
| |
Collapse
|
14
|
Yao X, Zhen H, Zhang D, Liu J, Pu X, Cai P. Microwave-assisted hydrothermal synthesis of broadband Yb3+/Er3+ co-doped BiOI/Bi2O4 photocatalysts with synergistic effects of upconversion and direct Z-scheme heterojunction. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129276] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
15
|
Hu X, Guo RT, Lin ZD, Bi ZX, Chen X, Wang J, Pan WG. Fabrication of Er3+/Yb3+ co-doped NiAl-LDH with promoted photocatalytic performance for CO2 reduction under Vis/NIR light irradiation. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
16
|
Guo Y, Zhong T, Ruan J, Wen H. Co-Exposed Crystal Facets Optimizing Photocatalytic Activity and Photosensitization Ability: A Case of Facile, Fast and Scalable Synthesis of BiOBr Round Nanosheets. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
17
|
Hu L, Wang R, Wang M, Xu Y, Wang C, Liu Y, Chen J. Research progress of photocatalysis for algae killing and inhibition: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:47902-47914. [PMID: 35522403 DOI: 10.1007/s11356-022-20645-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 05/02/2022] [Indexed: 06/14/2023]
Abstract
The healthy development of biodiversity has been threatened frequent water eutrophication. In recent years, photocatalytic technology, which has attracted researchers' attention, not only showed increasing potential in the field of organic pollutant degradation, but also many kinds of photocatalysts were used in the field of red tide pollution control at present, which showed superior ability to inactivate harmful algae and degrade algal toxins. Researches have also explored the mechanisms of photocatalytic algae inhibition. In this study, the current research progress in the field of photocatalytic algae inhibition was systematically discussed from several aspects, such as common types of photocatalysts, modification methods of photocatalysts, types of tested algae for photocatalytic algae inhibition, and action mechanism of inactivated algae cells, so as to provide a certain theoretical basis for further application research of photocatalysts in the field of algae removal in the later period.
Collapse
Affiliation(s)
- Lijun Hu
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Renjun Wang
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Mengjiao Wang
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Yuling Xu
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Chao Wang
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Yanyan Liu
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China
| | - Junfeng Chen
- School of Life Science, Qufu Normal University, Qufu, 273165, People's Republic of China.
| |
Collapse
|
18
|
Wang ZY, Luo FY, Li J, Wang N, Li XN, Li XJ. Heterostructure catalyst of Cu-Y2O3 supported on Cu2Y2O5 perovskite in solar-driven water gas shift reaction. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04767-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|