1
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Rong X, Han Y, Dai H, Jiang H, Xue Y. Enhancing the efficient degradation of BPS using the BPNS-CdS composite catalyst under visible light. ENVIRONMENTAL RESEARCH 2024; 251:118690. [PMID: 38485073 DOI: 10.1016/j.envres.2024.118690] [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: 01/02/2024] [Revised: 02/22/2024] [Accepted: 03/10/2024] [Indexed: 03/17/2024]
Abstract
Black phosphorus nanosheets (BPNS), a novel two-dimensional nanomaterial, find extensive applications in the field of photocatalysis. With the prohibition of bisphenol A (BPA), the utilization of bisphenol S (BPS), which is more resistant to degradation than BPA, has been steadily increasing. In this study, few-layer BPNS was prepared using an improved liquid-phase exfoliation method, showcasing its commendable specific surface area and notable adsorption capacity. Subsequently, a new type of nanocomposite material, BPNS-Cadmium sulfide (CdS), was hydrothermal synthesized involving BPNS and CdS. We conducted comparative assessments of BPNS, CdS, and their composite materials to identify the most efficient catalysts. Ultimately, we found that the composite material BPNS-CdS exhibited the highest capability for degrading BPS in an alkaline environment, achieving an impressive degradation rate of 86.9%. Notably, the degradation rate remained higher in an acidic environment compared to a neutral one. Through Electron Spin Resoance (ESR) experiments, it is revealed that BPNS-CdS, when exposed to visible light, generates •O2-, •OH, and h+ as confirmed. Additionally, we tested and validated the carrier separation and migration abilities of BPNS-CdS while also calculating the band gap for each material. Building upon these results, a possible photocatalysis mechanism experiment was proposed. Finally, the degradation products were analyzed using High-Performance Liquid Chromatography-Mass Spectrometry (HPLC-MS) and put forth a plausible pathway for the BPS degradation, and it was found that 4-Phenolsulfonic acid, Ethyl protocatechuate and Isophthalic acid are the main intermediates of BPS. This study contributes to a deeper understanding of the synergy between non-metallic catalysts like BPNS and metal catalysts like CdS. It also offers new insights into the degradation mechanisms and pathways for BPS.
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Affiliation(s)
- Xiaolong Rong
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Ying Han
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China; Jiangsu Engineering Research Center of Petrochemical Safety and Environmental Protection, Changzhou, 213164, China.
| | - Hao Dai
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Haixia Jiang
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China
| | - Yingang Xue
- School of Environmental Science and Engineering, Changzhou University, Changzhou, 213164, China.
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2
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Goren AY, Gungormus E, Vatanpour V, Yoon Y, Khataee A. Recent Progress on Synthesis and Properties of Black Phosphorus and Phosphorene As New-Age Nanomaterials for Water Decontamination. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38604807 DOI: 10.1021/acsami.3c19230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Concerted efforts have been made in recent years to find solutions to water and wastewater treatment challenges and eliminate the difficulties associated with treatment methods. Various techniques are used to ensure the recycling and reuse of water resources. Owing to their excellent chemical, physical, and biological properties, nanomaterials play an important role when integrated into water/wastewater treatment technologies. Black phosphorus (BP) is a potential nanomaterial candidate for water and wastewater treatment, especially its monolayer 2D derivative called phosphorene. Phosphorene offers relative adjustability in its direct bandgap, high charge carrier mobility, and improved in-plane anisotropy compared to the most extensively studied 2D nanomaterials. In this study, we examined the physical and chemical characteristics and synthetic processes of BP and phosphorene. We provide an overview of the latest advancements in the main applications of BP and phosphorene in water/wastewater treatment, which are categorized as photocatalytic, adsorption, and membrane filtration processes. Additionally, we explore the existing difficulties in the integration of BP and phosphorene into water/wastewater treatment technologies and prospects for future research in this field. In summary, this review highlights the ongoing necessity for significant research efforts on the integration of BP and phosphorene in water and wastewater applications.
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Affiliation(s)
- A Yagmur Goren
- Department of Environmental Engineering, Izmir Institute of Technology, Urla 35430, Izmir, Turkey
| | - Elif Gungormus
- Department of Chemical Engineering, Izmir Institute of Technology, Urla 35430, Izmir, Turkey
| | - Vahid Vatanpour
- Department of Applied Chemistry, Faculty of Chemistry, Kharazmi University, Tehran 15719-14911, Iran
- Environmental Engineering Department & National Research Center on Membrane Technologies (MEM-TEK), Istanbul Technical University, Istanbul 34469, Turkey
| | - Yeojoon Yoon
- Department of Environmental and Energy Engineering, Yonsei University, Wonju 26493, Republic of Korea
| | - Alireza Khataee
- Department of Chemical Engineering & ITU Synthetic Fuels and Chemicals Technology Center (ITU-SENTEK), Istanbul Technical University, Istanbul 34469, Turkey
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz 51666-16471, Iran
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3
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Li Y, Zhang H, Zhang D, Yao S, Dong S, Chen Q, Fan F, Jia H, Dong M. Construction of Bi 2WO 6/g-C 3N 4 Z-Scheme Heterojunction and Its Enhanced Photocatalytic Degradation of Tetracycline with Persulfate under Solar Light. Molecules 2024; 29:1169. [PMID: 38474681 DOI: 10.3390/molecules29051169] [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: 01/30/2024] [Revised: 02/19/2024] [Accepted: 02/29/2024] [Indexed: 03/14/2024] Open
Abstract
Z-scheme heterojunction Bi2WO6/g-C3N4 was obtained by a novel hydrothermal process; its photocatalysis-persulfate (PDS) activation for tetracycline (TC) removal was explored under solar light (SL). The structure and photoelectrochemistry behavior of fabricated samples were well characterized by FT-IR, XRD, XPS, SEM-EDS, UV-vis DRS, Mott-Schottky, PL, photocurrent response, EIS and BET. The critical experimental factors in TC decomposition were investigated, including the Bi2WO6 doping ratio, catalyst dosage, TC concentration, PDS dose, pH, co-existing ion and humic acid (HA). The optimum test conditions were as follows: 0.4 g/L Bi2WO6/g-C3N4 (BC-3), 20 mg/L TC, 20 mg/L PDS and pH = 6.49, and the maximum removal efficiency of TC was 98.0% in 60 min. The decomposition rate in BC-3/SL/PDS system (0.0446 min-1) was 3.05 times higher than that of the g-C3N4/SL/PDS system (0.0146 min-1), which might be caused by the high-efficiency electron transfer inside the Z-scheme Bi2WO6/g-C3N4 heterojunction. Furthermore, the photogenerated hole (h+), superoxide (O2•-), sulfate radical (SO4•-) and singlet oxygen (1O2) were confirmed as the key oxidation factors in the BC-3/SL/PDS system for TC degradation by a free radical quenching experiment. Particularly, BC-3 possessed a wide application potential in actual antibiotic wastewater treatment for its superior catalytic performance that emerged in the experiment of co-existing components.
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Affiliation(s)
- Yukun Li
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Haiyang Zhang
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Dan Zhang
- Science and Technology Innovation Coordination Service Center of Laiwu District, Jinan 271100, China
| | - Sen Yao
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Shuying Dong
- MOE Key Laboratory of Yellow River and Huai River Water Environmental and Pollution Control, Henan Key Laboratory for Environmental Pollution Control, School of Environment, Henan Normal University, Xinxiang 453007, China
| | - Qishi Chen
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Fengjuan Fan
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Hongyuan Jia
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
| | - Mingjia Dong
- School of Energy and Environmental Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China
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Wang Y, Liu C, Hu H, Lu Q, Wang H, Zhao C, Du F, Tang N. Fabrication of CuFe 2O 4/Bi 12O 17Cl 2 photocatalyst with intrinsic p-n junction for highly efficient bisphenol A degradation. J Environ Sci (China) 2024; 136:547-558. [PMID: 37923463 DOI: 10.1016/j.jes.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 08/28/2022] [Accepted: 09/02/2022] [Indexed: 11/07/2023]
Abstract
The construction and application of novel highly efficient photocatalysts have been the focus in the field of environmental pollutant removal. In this work, a novel CuFe2O4/Bi12O17Cl2 photocatalysts were synthesized by simple hydrothermal and chemical precipitation method. The fabricated CuFe2O4/Bi12O17Cl2 composite exhibited much higher photocatalytic activity than pristine CuFe2O4 and Bi12O17Cl2 in the removal of bisphenol A (BPA) under visible-light illumination, which ascribed to the intrinsic p-n junction of CuFe2O4 and Bi12O17Cl2. The photocatalytic degradation rate of BPA on CuFe2O4/Bi12O17Cl2 with an optimized CuFe2O4 content (1.0 wt.%) reached 93.0% within 30 min. The capture experiments of active species confirmed that the hydroxyl radicals (•OH) and superoxide radicals (•O2-) played crucial roles in photocatalytic BPA degradation process. Furthermore, the possible degradation mechanism and pathways of BPA was proposed according to the detected intermediates in photocatalytic reaction process.
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Affiliation(s)
- Yong Wang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China; College of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Cheng Liu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China; College of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Haoyun Hu
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China
| | - Qiujun Lu
- College of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Haiyan Wang
- College of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Chenxi Zhao
- College of Biological and Environmental Engineering, Changsha University, Changsha 410022, China
| | - Fuyou Du
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China; College of Biological and Environmental Engineering, Changsha University, Changsha 410022, China.
| | - Ningli Tang
- Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials, College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China.
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Zhang Z, He D, Zhang K, Yang H, Zhao S, Qu J. Recent Advances in Black Phosphorous-Based Photocatalysts for Degradation of Emerging Contaminants. TOXICS 2023; 11:982. [PMID: 38133383 PMCID: PMC10747269 DOI: 10.3390/toxics11120982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 11/29/2023] [Accepted: 12/01/2023] [Indexed: 12/23/2023]
Abstract
The recalcitrant nature of emerging contaminants (ECs) in aquatic environments necessitates the development of effective strategies for their remediation, given the considerable impacts they pose on both human health and the delicate balance of the ecosystem. Semiconductor-based photocatalytic technology is recognized for its dual benefits in effectively addressing both ECs and energy-related challenges simultaneously. Among the plethora of photocatalysts, black phosphorus (BP) stands as a promising nonmetallic candidate, offering a host of advantages including its tunable direct band gap, broad-spectrum light absorption capabilities, and exceptional charge mobility. Nevertheless, pristine BP frequently underperforms, primarily due to issues related to its limited ambient stability and the rapid recombination of photogenerated electron-hole pairs. To overcome these challenges, substantial research efforts have been devoted to the creation of BP-based photocatalysts in recent years. However, there is a noticeable absence of reviews regarding the advancement of BP-based materials for the degradation of ECs in aqueous solutions. Therefore, to fill this gap, a comprehensive review is undertaken. In this review, we first present an in-depth examination of the fabrication processes for bulk BP and BP nanosheets (BPNS). The review conducts a thorough analysis and comparison of the merits and limitations inherent in each method, thereby delineating the most auspicious avenues for future research. Then, in line with the pathways followed by photogenerated electron-hole pairs at the interface, BP-based photocatalysts are systematically categorized into heterojunctions (Type I, Type II, Z-scheme, and S-scheme) and hybrids, and their photocatalytic performances against various ECs and the corresponding degradation mechanisms are comprehensively summarized. Finally, this review presents personal insights into the prospective avenues for advancing the field of BP-based photocatalysts for ECs remediation.
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Affiliation(s)
- Zhaocheng Zhang
- Key Laboratory of Geographical Processes and Ecological Security of Changbai Mountains, Ministry of Education, School of Geographical Sciences, Northeast Normal University, Changchun 130024, China;
| | - Dongyang He
- School of Environment, Northeast Normal University, Changchun 130117, China; (K.Z.); (H.Y.); (S.Z.)
| | - Kangning Zhang
- School of Environment, Northeast Normal University, Changchun 130117, China; (K.Z.); (H.Y.); (S.Z.)
| | - Hao Yang
- School of Environment, Northeast Normal University, Changchun 130117, China; (K.Z.); (H.Y.); (S.Z.)
| | - Siyu Zhao
- School of Environment, Northeast Normal University, Changchun 130117, China; (K.Z.); (H.Y.); (S.Z.)
| | - Jiao Qu
- School of Environment, Northeast Normal University, Changchun 130117, China; (K.Z.); (H.Y.); (S.Z.)
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6
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Moradian S, Badiei A, Mohammadi Ziarani G, Mohajer F, Varma RS, Iravani S. Black Phosphorus-based Photocatalysts: Synthesis, Properties, and Applications. ENVIRONMENTAL RESEARCH 2023; 237:116910. [PMID: 37597834 DOI: 10.1016/j.envres.2023.116910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 08/11/2023] [Accepted: 08/16/2023] [Indexed: 08/21/2023]
Abstract
Photocatalysis is considered as an eco-friendly and sustainable strategy, since it uses abundant light for the advancement of the reaction, which is freely accessible and is devoid of environmental pollution. During the last decades, (nano)photocatalysts have gained broad industrial applications in terms of purification and detoxification of water as well as production of green fuels and hydrogen gas due to their special attributes. The degradation or remediation of toxic and hazardous compounds from the environment or changing them into non-toxic entities is a significant endeavor and necessary for the safety of humans, animals, and the environment. Black phosphorus (BP), a two-dimensional single-element material, has a marvelous structure, tunable bandgap, changeable morphology from bulk to nanosheet/quantum dot, and unique physicochemical properties, which makes it attractive material for photocatalytic applications, especially for sustainable development purposes. Since it can serve as a photocatalyst with or without coupling with other semiconductors, various aspects for multidimensional exploitation of BP are deliberated including their preparation via solvothermal, ball milling, calcination, and sonication methods to obtain BP from red phosphorus. The techniques for improving the photocatalytic and stability of BP-based composites are discussed along with their multifaceted applications for environmental remediation, pollution degradation, water splitting, N2 fixation, CO2 reduction, bacterial disinfection, H2 generation, and photodynamic therapy. Herein, most recent advancements pertaining to the photocatalytic applications of BP-based photocatalyst are cogitated, with a focus on their synthesis and properties as well as crucial challenges and future perspectives.
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Affiliation(s)
- Sahar Moradian
- School of Chemistry, College of Science, University of Tehran, Iran
| | - Alireza Badiei
- School of Chemistry, College of Science, University of Tehran, Iran.
| | | | - Fatemeh Mohajer
- Department of Organic Chemistry, Faculty of Chemistry, Alzahra University, Tehran, Iran
| | - Rajender S Varma
- Centre of Excellence for Research in Sustainable Chemistry, Department of Chemistry, Federal University of São Carlos, 13565-905, São Carlos, SP, Brazil.
| | - Siavash Iravani
- Faculty of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, 81746-73461, Isfahan, Iran.
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Wang J, Guo Z, Chen S, Chen Y, Qin Z, Xu K. High dispersity and ultralight PVP-mediated Al/MFe2O4/g-C3N4 (M = Cu, Mg, Ni) nanothermites synthesized by a novel sol-freeze-drying technology. ADV POWDER TECHNOL 2023. [DOI: 10.1016/j.apt.2023.103976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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8
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Yao B, Zheng G, Luan Y, Wang L, Xing X, Wang Y, Liu Y, He J, Zhang F. Cost-effective Bi 2WO 6 for efficient degradation of rhodamine B and tetracycline. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN ELECTRONICS 2023; 34:246. [PMID: 38625333 PMCID: PMC9873549 DOI: 10.1007/s10854-022-09654-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Accepted: 11/30/2022] [Indexed: 04/17/2024]
Abstract
The morphology-controlled synthesis of nanostructured photocatalysts by an environmentally friendly and low-cost method provides a feasible way to realize practical applications of photocatalysts. Herein, Bi2WO6 (BWO) nanophotocatalysts with mulberry shape, sheet-like, and round-cake morphologies have been successfully synthesized through a highly facile solvothermal process by simply adjusting the solvothermal temperature or utilizing selective addition of ethylene glycol as an orientation agent without using strong acids and bases and/or hazardous chemicals. The ratio of ethylene glycol and glacial acetic acid can affect the morphology and oxygen vacancy content of BWO, thereby influencing the photocatalytic performance. The photocatalytic activity of the as-prepared samples was evaluated by degradation of rhodamine B (RhB) and tetracycline under visible-light irradiation. The results indicated that all the BWO samples exhibited morphology-associated photocatalytic activity, and the sheet-like structure of BWO obtained via solvothermal treatment at 120 °C with ethylene glycol and glacial acetic acid ratio of 1:3 achieved the maximum specific surface area and possessed abundant oxygen vacancies, exhibiting outstanding photocatalytic activity for degradation of RhB and tetracycline. The degradation rate of RhB reached 100% within 20 min. To the best of our knowledge, this value is one of the most remarkable values for pristine BWO photocatalysts. Radical capture experiments demonstrated that hydroxyl radicals (·OH) play major roles compared with electrons (e-) and holes (h+) in the photocatalytic degradation process. A possible mechanism for the photocatalytic degradation of pollutants was proposed to better understand the reaction process. We believe that the more economical, efficient and greener methodology can provide guidance to develop highly efficient photocatalysts with favourable morphology and structure. Supplementary Information The online version contains supplementary material available at 10.1007/s10854-022-09654-z.
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Affiliation(s)
- Bingdong Yao
- School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101 Shandong China
| | - Guangwei Zheng
- School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101 Shandong China
| | - Yina Luan
- Sinoma Jiangxi Insulator and Electricity Co. Ltd., Pingxiang, 337000 Jiangxi China
| | - Lingxu Wang
- School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101 Shandong China
| | - Xuemin Xing
- Shandong Provincial Key Laboratory of Chemical Drug, Shandong Academy of Pharmaceutical Sciences, Jinan, 250101 Shandong China
| | - Yangyang Wang
- School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101 Shandong China
| | - Yan Liu
- School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101 Shandong China
| | - Jingxian He
- School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101 Shandong China
| | - Fengqing Zhang
- School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101 Shandong China
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9
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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.
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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:
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Khedr TM, El-Sheikh SM, Endo-Kimura M, Wang K, Ohtani B, Kowalska E. Development of Sulfur-Doped Graphitic Carbon Nitride for Hydrogen Evolution under Visible-Light Irradiation. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:62. [PMID: 36615972 PMCID: PMC9824438 DOI: 10.3390/nano13010062] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/16/2022] [Accepted: 12/18/2022] [Indexed: 06/17/2023]
Abstract
Developing eco-friendly strategies to produce green fuel has attracted continuous and extensive attention. In this study, a novel gas-templating method was developed to prepare 2D porous S-doped g-C3N4 photocatalyst through simultaneous pyrolysis of urea (main g-C3N4 precursor) and ammonium sulfate (sulfur source and structure promoter). Different content of ammonium sulfate was examined to find the optimal synthesis conditions and to investigate the property-governed activity. The physicochemical properties of the obtained photocatalysts were analyzed by X-ray diffraction (XRD), field emission-scanning electron microscopy (FE-SEM), scanning transmission electron microscopy (STEM), specific surface area (BET) measurement, ultraviolet-visible light diffuse reflectance spectroscopy (UV/vis DRS), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) spectroscopy and reversed double-beam photo-acoustic spectroscopy (RDB-PAS). The as-prepared S-doped g-C3N4 photocatalysts were applied for photocatalytic H2 evolution under vis irradiation. The condition-dependent activity was probed to achieve the best photocatalytic performance. It was demonstrated that ammonium sulfate played a crucial role to achieve concurrently 2D morphology, controlled nanostructure, and S-doping of g-C3N4 in a one-pot process. The 2D nanoporous S-doped g-C3N4 of crumpled lamellar-like structure with large specific surface area (73.8 m2 g-1) and improved electron-hole separation showed a remarkable H2 generation rate, which was almost one order in magnitude higher than that of pristine g-C3N4. It has been found that though all properties are crucial for the overall photocatalytic performance, efficient doping is probably a key factor for high photocatalytic activity. Moreover, the photocatalysts exhibit significant stability during recycling. Accordingly, a significant potential of S-doped g-C3N4 has been revealed for practical use under natural solar radiation.
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Affiliation(s)
- Tamer M. Khedr
- Institute for Catalysis, Hokkaido University, N21, W10, Sapporo 001-0021, Japan
- Nanomaterials and Nanotechnology Department, Central Metallurgical Research and Development Institute (CMRDI), Cairo 11421, Egypt
| | - Said M. El-Sheikh
- Nanomaterials and Nanotechnology Department, Central Metallurgical Research and Development Institute (CMRDI), Cairo 11421, Egypt
| | - Maya Endo-Kimura
- Institute for Catalysis, Hokkaido University, N21, W10, Sapporo 001-0021, Japan
| | - Kunlei Wang
- Institute for Catalysis, Hokkaido University, N21, W10, Sapporo 001-0021, Japan
| | - Bunsho Ohtani
- Institute for Catalysis, Hokkaido University, N21, W10, Sapporo 001-0021, Japan
| | - Ewa Kowalska
- Institute for Catalysis, Hokkaido University, N21, W10, Sapporo 001-0021, Japan
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland
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11
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Yin X, Sun X, Li D, Xie W, Mao Y, Liu Z, Liu Z. 2D/2D Phosphorus-Doped g-C 3N 4/Bi 2WO 6 Direct Z-Scheme Heterojunction Photocatalytic System for Tetracycline Hydrochloride (TC-HCl) Degradation. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph192214935. [PMID: 36429655 PMCID: PMC9691143 DOI: 10.3390/ijerph192214935] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/07/2022] [Accepted: 11/09/2022] [Indexed: 05/31/2023]
Abstract
Bi2WO6-based heterojunction photocatalyst for antibiotic degradation has been a research hotspot, but its photocatalytic performance needs to be further improved. Therefore, 2D/2D P-doped g-C3N4/Bi2WO6 direct Z-scheme heterojunction photocatalysts with different composition ratios were prepared through three strategies of phosphorus (P) element doping, morphology regulation, and heterojunction, and the efficiency of its degradation of tetracycline hydrochloride (TC-HCl) under visible light was studied. Their structural, optical, and electronic properties were evaluated, and their photocatalytic efficiency for TC-HCl degradation was explored with a detailed assessment of the active species, degradation pathways, and effects of humic acid, different anions and cations, and water sources. The 30% P-doped g-C3N4/Bi2WO6 had the best photocatalytic performance for TC-HCl degradation. Its photocatalytic rate was 4.5-, 2.2-, and 1.9-times greater than that of g-C3N4, P-doped g-C3N4, and Bi2WO6, respectively. The improved photocatalytic efficiency was attributed to the synergistic effect of P doping and 2D/2D direct Z-scheme heterojunction construction. The stability and reusability of the 30% P-doped C3N4/Bi2WO6 were confirmed by cyclic degradation experiments. Radical scavenging experiments and electron spin resonance spectroscopy showed that the main active species were •O2- and h+. This work provides a new strategy for the preparation of direct Z-scheme heterojunction catalysts with high catalytic performance.
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Affiliation(s)
- Xudong Yin
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541006, China
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Xiaojie Sun
- Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, College of Environmental Science and Engineering, Guilin University of Technology, Guilin 541006, China
| | - Dehao Li
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Wenyu Xie
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Yufeng Mao
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Zhenghui Liu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
| | - Zhisen Liu
- Guangdong Provincial Key Laboratory of Petrochemical Pollution Processes and Control, Key Laboratory of Petrochemical Pollution Control of Guangdong Higher Education Institutes, School of Environmental Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
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Ma Y, Li J, Cai J, Zhong L, Lang Y, Ma Q. Z-scheme g-C3N4/ZnS heterojunction photocatalyst: One-pot synthesis, interfacial structure regulation, and improved photocatalysis activity for bisphenol A. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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