1
|
Huang J, Wang H, Jia C, Yang H, Tang Y, Gou K, Zhou Y, Zhang D. High-Efficiency and Ultra-Stable Cesium-Bismuth-Based Lead-free Perovskite Solar Cells without Modification. J Phys Chem Lett 2024:3383-3389. [PMID: 38501789 DOI: 10.1021/acs.jpclett.4c00310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/20/2024]
Abstract
Perovskite solar cells (PSCs) have become a new photovoltaic technology with great commercial potential because of their excellent photovoltaic performance. However, the toxicity and poor environmental stability of Pb in Pb-based perovskites limit its large-scale application. Exploring alternatives to Pb is an available approach to develop environmentally friendly PSCs. As an adjacent element of Pb, Bi shows many similar physical and chemical properties; therefore, it is commonly applied for B site substitution in Pb-based PSCs. CsBiSCl2, a new Pb-free perovskite system, was synthesized for the first time as a light absorber. By preparing DMABiS2 as an intermediate, Cs-Bi-based CsBiSCl2 perovskite films with a band gap over 2.012 eV were prepared by introducing CsCl, and the optimal annealing temperature, time, and stoichiometric ratio of the film were explored in this work. The conventional structure of CsBiSCl2 PSCs achieved a power conversion efficiency (PCE) of 10.38%, and the efficiency declined by only 3% after aging in air for 150 days, showing excellent stability, which is one of the most stable devices in inorganic PSCs. This work opens up a new road for the future development of environmentally friendly and commercially stable lead-free PSCs.
Collapse
Affiliation(s)
- Jin Huang
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an 710049, China
- Shool of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Hao Wang
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an 710049, China
- Shool of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Chunliang Jia
- Shool of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Husheng Yang
- Shool of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Yizhe Tang
- Shool of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Kaiyuan Gou
- Shool of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Yufan Zhou
- Shool of Electronic Information and Artificial Intelligence, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Dan Zhang
- The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an Jiaotong University, Xi'an 710049, China
| |
Collapse
|
2
|
Cerqueira Caldas GK, de Abreu Souza G, Silva de Menezes A, Ferreira Pereira SR, de Cássia Silva Luz R, Damos FS. Membraneless, self-powered immunosensing of a cardiac biomarker by exploiting a PEC platform based on CaBi 2Ta 2O 9 combined with bismuth oxyiodides. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2023; 15:6541-6550. [PMID: 37990986 DOI: 10.1039/d3ay01309j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
This work describes the development of a membraneless, self-powered immunosensor exploiting a photoelectrochemical system based on two photoelectrodes for cardiac troponin I (cTn). An electrode based on CaBi2Ta2O9 combined with bismuth oxyiodides (BiOI/Bi4O5I2/Bi5O7I) was modified with the cTnI antibody (anti-cTnI) and applied in a photoelectrochemical cell as a photoanode. To perform the cTnI detection exploiting a self-powered photoelectrochemical setup, the immunosensor (anti-cTnI/BiOI/Bi4O5I2/Bi5O7I/CaBi2Ta2O9/FTO) was coupled to a photoelectrochemical cell containing a photocathode based on CuBi2O4 (CBO/FTO) for zero-biased photoelectrochemical immunosensing of cardiac troponin I (cTnI) biomarker. For comparison purposes, the photoanode was applied for cTnI detection in a three-electrode electrochemical cell. The spectroscopic, structural, and morphological characteristics of the photoelectrochemical (PEC) materials were evaluated using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD). Electrochemical impedance spectroscopy (EIS) measurements were performed in the presence and absence of light to investigate the effects of photons on the charge transfer resistance of the photoanode. The influence of the cTnI biomarker on the photoelectrochemical response of the anti-cTnI antibody-modified photoelectrochemical platform (anti-cTnI/BiOI/Bi4O5I2/Bi5O7I/CaBi2Ta2O9/FTO) was evaluated by measuring the photocurrent of the system. The immunosensor presented a linear response ranging from 1 pg mL-1 to 200 ng mL-1 as well as a mean recovery percentage between 95.7% and 108.0% in real human serum samples for the cTnI biomarker.
Collapse
Affiliation(s)
| | | | - Alan Silva de Menezes
- Department of Physics, Federal University of Maranhão-UFMA, 65080-805, São Luís, MA, Brazil
| | | | | | - Flavio Santos Damos
- Department of Chemistry, Federal University of Maranhão-UFMA, 65080-805, São Luís, MA, Brazil.
| |
Collapse
|
3
|
Photocatalytic CO2 Reduction to CH4 and Dye Degradation Using Bismuth Oxychloride/Bismuth Oxyiodide/Graphitic Carbon Nitride (BiOmCln/BiOpIq/g-C3N4) Nanocomposite with Enhanced Visible-Light Photocatalytic Activity. Catalysts 2023. [DOI: 10.3390/catal13030522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2023] Open
Abstract
The use of visible-light-driven photocatalysts in wastewater treatment, photoreduction of CO2, green solar fuels, and solar cells has elicited substantial research attention. Bismuth oxyhalide and its derivatives are a group of visible-light photocatalysts that can diminish electron–hole recombination in layered structures and boost photocatalytic activity. The energy bandgap of these photocatalysts lies in the range of visible light. A simple hydrothermal method was applied to fabricate a series of bismuth oxychloride/bismuth oxyiodide/grafted graphitic carbon nitride (BiOmCln/BiOpIq/g-C3N4) sheets with different contents of g-C3N4. The fabricated sheets were characterized through XRD, TEM, SEM-EDS, XPS, UV-vis DRS, PL, and BET. The conversion efficiency of CO2 reduction to CH4 of BiOmCln/BiOpIq of 4.09 μmol g−1 can be increased to 39.43 μmol g−1 by compositing with g-C3N4. It had an approximately 9.64 times improvement. The photodegradation rate constant for crystal violet (CV) dye of BiOmCln/BiOpIq of k = 0.0684 can be increased to 0.2456 by compositing with g-C3N4. It had an approximately 3.6 times improvement. The electron paramagnetic resonance results and the quenching effects indicated that 1O2, •OH, h+, and •O2− were active species in the aforementioned photocatalytic degradation. Because of their heterojunction, the prepared ternary nanocomposites possessed the characteristics of a heterojunction of type II band alignment.
Collapse
|
4
|
Prabhakar Vattikuti SV, Zeng J, Ramaraghavulu R, Shim J, Mauger A, Julien CM. High-Throughput Strategies for the Design, Discovery, and Analysis of Bismuth-Based Photocatalysts. Int J Mol Sci 2022; 24:ijms24010663. [PMID: 36614112 PMCID: PMC9820977 DOI: 10.3390/ijms24010663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 12/20/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
Bismuth-based nanostructures (BBNs) have attracted extensive research attention due to their tremendous development in the fields of photocatalysis and electro-catalysis. BBNs are considered potential photocatalysts because of their easily tuned electronic properties by changing their chemical composition, surface morphology, crystal structure, and band energies. However, their photocatalytic performance is not satisfactory yet, which limits their use in practical applications. To date, the charge carrier behavior of surface-engineered bismuth-based nanostructured photocatalysts has been under study to harness abundant solar energy for pollutant degradation and water splitting. Therefore, in this review, photocatalytic concepts and surface engineering for improving charge transport and the separation of available photocatalysts are first introduced. Afterward, the different strategies mainly implemented for the improvement of the photocatalytic activity are considered, including different synthetic approaches, the engineering of nanostructures, the influence of phase structure, and the active species produced from heterojunctions. Photocatalytic enhancement via the surface plasmon resonance effect is also examined and the photocatalytic performance of the bismuth-based photocatalytic mechanism is elucidated and discussed in detail, considering the different semiconductor junctions. Based on recent reports, current challenges and future directions for designing and developing bismuth-based nanostructured photocatalysts for enhanced photoactivity and stability are summarized.
Collapse
Affiliation(s)
| | - Jie Zeng
- School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | | | - Jaesool Shim
- School of Mechanical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Alain Mauger
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS-UMR 7590, 4 Place Jussieu, 75252 Paris, France
| | - Christian M. Julien
- Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie (IMPMC), Sorbonne Université, CNRS-UMR 7590, 4 Place Jussieu, 75252 Paris, France
- Correspondence:
| |
Collapse
|
5
|
Chen X, Chen P, Yang S, Gao H. Recent advances in bismuth oxyhalides photocatalysts and their applications. NANOTECHNOLOGY 2022; 34:052001. [PMID: 36332232 DOI: 10.1088/1361-6528/aca02e] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 11/04/2022] [Indexed: 06/16/2023]
Abstract
Bismuth oxyhalides photocatalysts exhibit great potential to solve the energy and environmental issues under visible light due to their unique physicochemical and optical properties. However, the photocatalytic activity of pristine bismuth oxyhalides remains unsatisfactory because of their inherent drawbacks. Up to now, many strategies have been used to improve the photocatalytic performance. In this review, the basic mechanism, unique properties and structure of bismuth oxyhalides photocatalysts have been introduced, and the common techniques of synthesis, modification, and main applications have been discussed. Finally, new insights are proposed to meet the future challenges and development of the photocatalysts, which can provide better knowledge for the advancement of the related research areas.
Collapse
Affiliation(s)
- Xuemei Chen
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, People's Republic of China
| | - Pengyue Chen
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, People's Republic of China
| | - Siming Yang
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, People's Republic of China
| | - Hongwen Gao
- State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092, People's Republic of China
| |
Collapse
|
6
|
Tekin G, Ersöz G, Atalay S. Photo-degradation of sugar processing wastewater by copper doped bismuth oxyiodide: Assessment of treatment performance and kinetic studies. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2022; 318:115432. [PMID: 35759968 DOI: 10.1016/j.jenvman.2022.115432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 05/14/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
In this study, photo-Fenton-like oxidation method was evaluated for synthetic sugar industry wastewater using visible-light driven Cu-BiOI photocatalyst. Reaction conditions including initial pH, catalyst loading, initial hydrogen peroxide (H2O2) concentration, and temperature, were optimized. At these optimized conditions, the total saccharide concentration (TSC) and total organic carbon (TOC) removals were 56.20% and 30.67%, respectively whereas the maximum TSC and TOC removal reached up to 93.35% and 74.72% respectively by decreasing initial sucrose concentration. The kinetic study showed that the reaction order for sucrose and TOC oxidation was determined as 2 for pseudo-homogeneous power law models with respect to sucrose concentration and TOC, respectively.For heterogeneous models, Langmuir-Hinshelwood model based on the mechanism of adsorbed pollutant and oxidant on different catalytic sites was the best fit for oxidation of sucrose and other organic intermediates. According to the catalyst characterization studies, incorporation of copper was successful and Cu-BiOI possesses high photocatalytic activity accomplished by acid-assisted synthesis method.
Collapse
Affiliation(s)
- Gülen Tekin
- Ege University, Faculty of Engineering, Chemical Engineering Department, 35100, Bornova, İzmir, Turkey.
| | - Gülin Ersöz
- Ege University, Faculty of Engineering, Chemical Engineering Department, 35100, Bornova, İzmir, Turkey.
| | - Süheyda Atalay
- Ege University, Faculty of Engineering, Chemical Engineering Department, 35100, Bornova, İzmir, Turkey.
| |
Collapse
|
7
|
Yang M, Liu W, Guo SP. Sb 5O 7I: Exploration of Ternary Antimony-Based Oxyhalide as a Nonlinear-Optical Material. Inorg Chem 2022; 61:14517-14522. [PMID: 36067496 DOI: 10.1021/acs.inorgchem.2c02765] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal oxyhalides are attracting extensive interest for their enchanting structures and diverse properties. Herein, a ternary antimony oxyiodide, Sb5O7I with the new hexagonal noncentrosymmetric P63 structure is systematically surveyed by focusing on its nonlinear-optical (NLO) behavior. Its two-dimensional structure is constructed by {Sb2[Sb3O7]}∞+ layers separated by charge-balanced I- anions. The second-harmonic-generation measurement result suggests that Sb5O7I is NLO-active, and the effect is assigned to the [SbO3]3- triangular pyramids' contribution. Sb5O7I shows a direct optical energy gap of 3.22 eV, which is the largest among all reported ternary oxyiodides. This work is the first investigation of ternary NLO Sb-based oxyhalides and enriches the study of metal oxyhalides as promising NLO materials.
Collapse
Affiliation(s)
- Mei Yang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Wenlong Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| | - Sheng-Ping Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, P. R. China
| |
Collapse
|
8
|
A novel Z-scheme Bi4O5I2/NiFe2O4 heterojunction photocatalyst with reliable recyclability for Rhodamine B degradation. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.10.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
9
|
Sun X, Li Y, Du Y, Li Z, Jiang N, Qu J, Xue L, Sun G. In situ construction of Bi4O5I2-Bi2O2CO3-BiOCl0.8I0.2 n-p-n heterojunction for enhanced photocatalytic performance. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126988] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
10
|
Wang Y, Yu D, Liu Y, Liu X, Shi Y. Boosting Piezo/Photo-Induced Charge Transfer of CNT/Bi 4O 5I 2 Catalyst for Efficient Ultrasound-Assisted Degradation of Rhodamine B. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4449. [PMID: 34442972 PMCID: PMC8401989 DOI: 10.3390/ma14164449] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Revised: 07/22/2021] [Accepted: 07/29/2021] [Indexed: 11/16/2022]
Abstract
Strain-induced internal electric fields present a significant path to boosting the separation of photoinduced electrons and holes. In addition, piezo-induced positive/negative pairs could be released smoothly, taking advantage of the excellent electroconductibility of some conductors. Herein, the hybrid piezo-photocatalysis is constructed by combining debut piezoelectric nanosheets (Bi4O5I2) and typical conductor multiwalled carbon nanotubes (CNT). The photocatalytic degradation efficiency that the hybrid CNT/Bi4O5I2 exhibits was remarkably increased by more than 2.3 times under ultrasonic vibration, due to the piezo-generated internal electric field. In addition, the transient photocurrent spectroscopy and electrochemical impedance measurement reveal that the CNT coating on Bi4O5I2 enhances the piezo-induced positive/negative migration. Therefore, the piezocatalytic activity of CNT/Bi4O5I2 could be improved by three times, compared with pure Bi4O5I2 nanosheets. Our results may offer promising approaches to sketching efficient piezo-photocatalysis for the full utilization of solar energy or mechanical vibration.
Collapse
Affiliation(s)
- Yang Wang
- Chang Wang School of Honors, Nanjing University of Information Science and Technology, Nanjing 210044, China; (Y.W.); (Y.S.)
| | - Dongfang Yu
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China; (Y.L.); (X.L.)
| | - Yue Liu
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China; (Y.L.); (X.L.)
| | - Xin Liu
- School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China; (Y.L.); (X.L.)
| | - Yue Shi
- Chang Wang School of Honors, Nanjing University of Information Science and Technology, Nanjing 210044, China; (Y.W.); (Y.S.)
| |
Collapse
|
11
|
Advanced Two-Dimensional Heterojunction Photocatalysts of Stoichiometric and Non-Stoichiometric Bismuth Oxyhalides with Graphitic Carbon Nitride for Sustainable Energy and Environmental Applications. Catalysts 2021. [DOI: 10.3390/catal11040426] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Semiconductor-based photocatalysis has been identified as an encouraging approach for solving the two main challenging problems, viz., remedying our polluted environment and the generation of sustainable chemical energy. Stoichiometric and non-stoichiometric bismuth oxyhalides (BiOX and BixOyXz where X = Cl, Br, and I) are a relatively new class of semiconductors that have attracted considerable interest for photocatalysis applications due to attributes, viz., high stability, suitable band structure, modifiable energy bandgap and two-dimensional layered structure capable of generating an internal electric field. Recently, the construction of heterojunction photocatalysts, especially 2D/2D systems, has convincingly drawn momentous attention practicably owing to the productive influence of having two dissimilar layered semiconductors in face-to-face contact with each other. This review has systematically summarized the recent progress on the 2D/2D heterojunction constructed between BiOX/BixOyXz with graphitic carbon nitride (g-C3N4). The band structure of individual components, various fabrication methods, different strategies developed for improving the photocatalytic performance and their applications in the degradation of various organic contaminants, hydrogen (H2) evolution, carbon dioxide (CO2) reduction, nitrogen (N2) fixation and the organic synthesis of clean chemicals are summarized. The perspectives and plausible opportunities for developing high performance BiOX/BixOyXz-g-C3N4 heterojunction photocatalysts are also discussed.
Collapse
|
12
|
Chen R, Xie Y, Chen G, Yang X, Lu X, Wang L. Phase, optical property, and photocatalytic performance behaviors of non-stoichiometric bismuth oxyiodide. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1830112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Rui Chen
- College of Science, Key Laboratory of Materials Design and Quantum Simulation and College of Science, Jilin Provincial Key Laboratory of Human Health Status Identification and Function Enhancement, Changchun University, Changchun, China
| | - Yabin Xie
- College of Science, Key Laboratory of Materials Design and Quantum Simulation and College of Science, Jilin Provincial Key Laboratory of Human Health Status Identification and Function Enhancement, Changchun University, Changchun, China
| | - Guoli Chen
- College of Science, Key Laboratory of Materials Design and Quantum Simulation and College of Science, Jilin Provincial Key Laboratory of Human Health Status Identification and Function Enhancement, Changchun University, Changchun, China
| | - Xiaodong Yang
- College of Science, Key Laboratory of Materials Design and Quantum Simulation and College of Science, Jilin Provincial Key Laboratory of Human Health Status Identification and Function Enhancement, Changchun University, Changchun, China
| | - Xin Lu
- College of Science, Key Laboratory of Materials Design and Quantum Simulation and College of Science, Jilin Provincial Key Laboratory of Human Health Status Identification and Function Enhancement, Changchun University, Changchun, China
| | - Lili Wang
- College of Science, Key Laboratory of Materials Design and Quantum Simulation and College of Science, Jilin Provincial Key Laboratory of Human Health Status Identification and Function Enhancement, Changchun University, Changchun, China
| |
Collapse
|
13
|
Highly efficient visible/NIR photocatalytic activity and mechanism of Yb3+/Er3+ co-doped Bi4O5I2 up-conversion photocatalyst. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117040] [Citation(s) in RCA: 87] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
14
|
Liu H, Cai J, Luo M, Chen C, Hu P. Novel mesoporous bismuth oxyiodide single-crystal nanosheets with enhanced catalytic activity. RSC Adv 2020; 10:5913-5918. [PMID: 35497426 PMCID: PMC9049228 DOI: 10.1039/c9ra10451h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 01/16/2020] [Indexed: 11/30/2022] Open
Abstract
A simple one-step approach was employed to fabricate novel BiOI nanosheets and mesoporous Bi4O5I2 single-crystal nanosheets. The formation mechanism of the as-prepared two-dimensional mesoporous sheet-like structure and photocatalytic activities were systematically discussed. The stripping effect of I2 vapor generated in the calcination process was concluded to be responsible for the formation of this two-dimensional mesoporous structure. Moreover, relying on this advantage, Bi4O5I2 displayed excellent activities in the degradation of RhB and salicylic acid under visible light irradiation.
Collapse
Affiliation(s)
- Hang Liu
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology Wuhan 430074 P. R. China +86 27 87558241
| | - Jian Cai
- State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences Nanjing 210008 P. R. China
| | - Man Luo
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology Wuhan 430074 P. R. China +86 27 87558241
| | - Chang Chen
- School of Resource and Environment Science, Wuhan University Wuhan 430070 P. R. China
| | - Pei Hu
- State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology Wuhan 430074 P. R. China +86 27 87558241
| |
Collapse
|
15
|
|
16
|
Hou D, Tang F, Ma B, Deng M, Qiao XQ, Liu YL, Li DS. Bi4O5I2 flower/Bi2S3 nanorod heterojunctions for significantly enhanced photocatalytic performance. CrystEngComm 2019. [DOI: 10.1039/c9ce00697d] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The excellent photocatalytic reduction of Cr(vi) over Bi4O5I2/Bi2S3 heterojunctions is ascribed to the synergetic effects of Bi2S3 sensitization and intimate contact between Bi4O5I2 flowers and Bi2S3 nanorods.
Collapse
Affiliation(s)
- Dongfang Hou
- College of Materials and Chemical Engineering
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang
- China
| | - Fan Tang
- College of Materials and Chemical Engineering
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang
- China
| | - Bingbing Ma
- College of Materials and Chemical Engineering
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang
- China
| | - Min Deng
- College of Materials and Chemical Engineering
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang
- China
| | - Xiu-qing Qiao
- College of Materials and Chemical Engineering
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang
- China
| | - Yun-Lin Liu
- College of Materials and Chemical Engineering
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang
- China
| | - Dong-Sheng Li
- College of Materials and Chemical Engineering
- Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials
- China Three Gorges University
- Yichang
- China
| |
Collapse
|