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Chen H, Sun M, Zhao J, Huang X, Teng H, Gao Y, Li Z, Li J. In-situ assembling novel N-Ti 3C 2/BiOCl xBr 1-x composites with enhanced photocatalytic degradation and nitrogen reduction activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 316:124331. [PMID: 38669983 DOI: 10.1016/j.saa.2024.124331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 03/28/2024] [Accepted: 04/22/2024] [Indexed: 04/28/2024]
Abstract
Herein, a collection of novel N-Ti3C2/BiOClxBr1-x composites are fabricated via a simple in-situ sonochemical process. Not only the preparation method for N-Ti3C2 but also the photocatalytic system of N-Ti3C2/BiOClxBr1-x are firstly developed. Multiple characterizations jointly demonstrate the successful fabrication of the composites. Compared to that of BiOClxBr1-x, the maximum improvements of 1.16, 1.25 and 1.26 folds are severally confirmed for the photocatalytic degradation of levofloxacin, Rhodamine B, and methylene blue over N-Ti3C2/BiOClxBr1-x composites. In addition, through radicals trapping tests, the primary active species in photocatalytic degradation process are verified to be O2-. Moreover, N-Ti3C2/BiOClxBr1-x composites also exhibit 1.18 and 1.14 times enhancements for NH3 production compared with that of BiOClxBr1-x with or without the presence of methanol, respectively. In addition, the maximum improvements of photo-current and photo-potential for BiOClxBr1-x are 1.29 and 1.86 folds with the introduction of N-Ti3C2, respectively. The enhanced photocatalytic activity of N-Ti3C2/BiOClxBr1-x composites is owing to the heightened light absorption, increased specific surface area, and accelerated separation of photoinduced carriers. Additionally, the stable photocatalytic properties of N-Ti3C2/BiOClxBr1-x are confirmed by three photocatalytic recycle tests on pollutant degradation and nitrogen reduction combined with X-ray diffraction patterns before and after three recycles. This study suggests that N-Ti3C2 is an efficient ornamentation for boosting photocatalytic activity ofBiOClxBr1-x, which can also be expanded as a promising modifier for other semiconductors.
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Affiliation(s)
- Haohao Chen
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Mingxuan Sun
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Junjie Zhao
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Xiangzhi Huang
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Huanying Teng
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Yu Gao
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Ziyang Li
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
| | - Jun Li
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
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2
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Li Z, Feng L, Zhang L, Gao P, Liu Y. Fabrication of porous and defect-rich BiOI/MWCNTs photocatalyst by Ar plasma-etching for emerging pollutants degradation. ENVIRONMENTAL RESEARCH 2024; 252:119015. [PMID: 38692423 DOI: 10.1016/j.envres.2024.119015] [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: 01/11/2024] [Revised: 04/08/2024] [Accepted: 04/23/2024] [Indexed: 05/03/2024]
Abstract
Carbon material modification and defect engineering are indispensable for bolstering the photocatalytic effectiveness of bismuth halide oxide (BiOX). In this study, a novel porous and defect-rich Ar-CB-2 photocatalyst was synthesized for emerging pollutants degradation. Leveraging the interfacial coupling effect of multi-walled carbon nanotubes (MWCNTs), we expanded the absorption spectrum of BiOI nanosheets and significantly suppressed the recombination of charge carriers. Introducing defects via Argon (Ar) plasma-etching further bolstered the adsorption efficacy and electron transfer properties of photocatalyst. In comparison to the pristine BiOI and CB-2, the Ar-CB-2 photocatalyst demonstrated superior photodegradation efficiency, with the first-order reaction rates for the photodegradation of tetracycline (TC) and bisphenol A (BPA) increasing by 2.83 and 4.53 times, respectively. Further probe experiments revealed that the steady-state concentrations of ·O2- and 1O2 in the Ar-CB-2/light system were enhanced by a factor of 1.67 and 1.28 compared to CB-2/light system. This result confirmed that the porous and defect-rich structure of Ar-CB-2 inhibited electron-hole recombination and boosted photocatalyst-oxygen interaction, swiftly transforming O2 into active oxygen species, thus accelerating their production. Furthermore, the possible degradation pathways for TC and BPA in the Ar-CB-2/light system were predicted. Overall, these findings offered a groundbreaking approach to the development of highly effective photocatalysts, capable of swiftly breaking down emerging pollutants.
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Affiliation(s)
- Zexin Li
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Li Feng
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Liqiu Zhang
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China
| | - Peng Gao
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
| | - Yongze Liu
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
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Tian X, Yang J, Hussain S, Wang Y, Heinlein J, Zhang L, Hao Y, Gao R. Hydrophilic molecularly imprinted lysozyme-BiOBr composite with enhanced visible light utilization for selective removal of trace contaminants in water. Int J Biol Macromol 2024; 272:132910. [PMID: 38844276 DOI: 10.1016/j.ijbiomac.2024.132910] [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: 04/02/2024] [Revised: 05/29/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
The development of high-efficiency molecularly imprinted photocatalysts is still challenging due to the lack of hydrophilic and suitable functional monomers. In this work, the bio-sourced lysozyme was developed as the hydrophilic functional monomer, and Cu-doped BiOBr was used as the photocatalysts, to prepare a novel hydrophilic molecularly imprinted lysozyme-BiOBr composite (BiOBr-Cu/LyzMIP) with enhanced visible light utilization. Lysozyme could form a transparent layer to mitigate the light transmission obstruction caused by the surface imprinting layer, making it an ideal functional monomer. The prepared BiOBr-Cu/LyzMIP possessed red-shifted visible-light absorption edge and minor reduction of light absorbance, indicating the enhanced utilization of visible light. Accordingly, BiOBr-Cu/LyzMIP demonstrated excellent degradation rate (99.4 % in 20 min), exceptional degradation efficiency (0.211 min-1), and superior reusability. Moreover, BiOBr-Cu/LyzMIP exhibited rapid adsorption equilibrium (20 min), good imprinting factor (2.67), and favourable degradation selectivity (>1.75), indicating the good imprinting effect resulting from abundant functional groups of lysozyme. Versatility experiments on different templates suggested that the proposed approach allowed flexibility in selecting a wide range of hazardous contaminants according to practical requirements. The present work expands the application of lysozyme-based composites in the environmental field, and provides a new one-stop pathway for efficient and sustainable treatment of contaminated water.
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Affiliation(s)
- Xuemeng Tian
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Jiyuan Yang
- Shanxi Geology and Mineral Resources 213 Laboratory Co., LTD, Linfen, Shanxi 041000, China
| | - Sameer Hussain
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China
| | - Yue Wang
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China; School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Jake Heinlein
- Department of Chemical & Environmental Engineering, Yale University, New Haven, CT 06520-8286, United States
| | - Long Zhang
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Yi Hao
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Ruixia Gao
- School of Chemistry, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, China.
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Deng Z, Li Y, Zheng X, Guo Y. Photocatalytic activity evaluation of polyvinylpyrrolidone K30 assisted synthesis of 1D oxygen-vacancy-rich Bi5O7BrxI1-x nanorod solid solution. JOURNAL OF HAZARDOUS MATERIALS 2024; 465:133361. [PMID: 38157811 DOI: 10.1016/j.jhazmat.2023.133361] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 12/15/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
The unique layered structure of bismuth halide oxide has led to an extensive application in the degradation of refractory antibiotics from water environments. With the aid of regulating the energy band structure of photocatalytic materials and equilibrating the response towards visible light and redox ability, a novel oxygen-vacancy-rich Bi5O7BrxI1-x nanorod solid solution was synthesized by polyvinylpyrrolidone K30 assisted solvothermal method, and its photocatalytic behavior was investigated for the degradation of antibiotic levofloxacin under visible light. The degradation rate of the optimal Bi5O7Br0.5I0.5 to levofloxacin can reach 82.7% within 30 min, which is 9.22 and 4.74 times higher than those of the monomers Bi5O7Br and Bi5O7I. The catalyst of Bi5O7Br0.5I0.5 shows 99.88% antibacterial activity against Escherichia coli. The efficient photocatalytic ability of the Bi5O7Br0.5I0.5 is resulted from the alteration of energy band structure and suppression of charge recombination due to benign changes in the electronic and crystal structures. Furthermore, both various characterizations and Density Functional Theory calculations reveal that a multitude of oxygen vacancies exist in the Bi5O7Br0.5I0.5. The photocatalytic degradation pathways were explored and the toxicity of the intermediates was also appraised. The present work provides a mild and feasible construction of solid solutions and introduction of oxygen vacancies to eliminate environmentally refractory organic pollutants with photocatalytic technology.
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Affiliation(s)
- Ziran Deng
- Department of Municipal Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yiwen Li
- Department of Municipal Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xinyu Zheng
- Department of Municipal Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Yongfu Guo
- Department of Municipal Engineering, Suzhou University of Science and Technology, Suzhou 215009, China; Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, Jiangsu, China.
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Ikram Z, Azmat E, Perviaz M. Degradation Efficiency of Organic Dyes on CQDs As Photocatalysts: A Review. ACS OMEGA 2024; 9:10017-10029. [PMID: 38463277 PMCID: PMC10918811 DOI: 10.1021/acsomega.3c09547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 03/12/2024]
Abstract
Across the globe, the task of providing clean and safe drinking water is getting harder. Organic contaminants, including dyes and pharmaceutical medications, are a significant environmental threat, especially in aquatic bodies due to their uncontrolled emission. Therefore, a method for their degradation in water bodies that is both environmentally friendly and commercially feasible must be developed. In the realm of photocatalysis, carbon-based nanomaterials have drawn more attention in the last ten years. Due to their exceptional and distinct qualities, metal-free carbon-based photocatalytic systems have received a lot of attention recently for their ability to degrade organic contaminants into semiconductor quantum dots, which are already available. A class of nanomaterials with a particle size between 2 and 10 nm showing distinct optoelectrical characteristics is among the variety of catalytic quantum dots. This review covers several synthesis techniques such as electrochemical, laser ablation, microwave radiation, hydrothermal, and optical features of CQDs such as the photoluminescent (PL) property and quantum confinement effect. The uses of CQDs in the degradation of various dyes as well as the difficulties that still exist and the opportunities that lie ahead have also been explored.
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Affiliation(s)
- Zulkifle Ikram
- Department
of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, 1- Khayaban-e- Jinnah, Johar Town, Lahore 54000, Pakistan
| | - Esha Azmat
- Department
of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, 1- Khayaban-e- Jinnah, Johar Town, Lahore 54000, Pakistan
| | - Muhammad Perviaz
- Department
of Basic and Applied Chemistry, Faculty of Science and Technology, University of Central Punjab, 1- Khayaban-e- Jinnah, Johar Town, Lahore 54000, Pakistan
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Li J, Yin Z, Guo J, Gan W, Chen R, Zhang M, Sun Z. An innovative Z-type Sb 2S 3/In 2S 3/TiO 2 heterostructure: superior performance in the photocatalytic removal of levofloxacin and mechanistic insight. RSC Adv 2024; 14:4975-4989. [PMID: 38332790 PMCID: PMC10848313 DOI: 10.1039/d3ra08905c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Accepted: 01/30/2024] [Indexed: 02/10/2024] Open
Abstract
In this study, Sb2S3/In2S3/TiO2 (SIT) heterojunction photocatalysts were prepared by a simple two-step hydrothermal method and applied to the photocatalytic degradation of levofloxacin (LEV). After 160 min of reaction under visible light, the SIT heterojunction photocatalyst degraded 10 mg L-1 LEV at a rate of 86.7%. The degradation of LEV follows pseudo-first-order kinetics with a rate constant 1.16 × 10-2 min-1, which is 1.42, 1.22 and 1.05 times higher than that of TiO2, SI and IT, respectively. Meanwhile, the SIT photocatalysts also showed high photocatalytic activity for other antibiotics. The enhanced photocatalytic activity of the ternary heterostructures was attributed to the full-spectrum response and the synergistic effect of the dual Z-type heterojunctions, which improved the visible light absorption and facilitated the charge separation. In addition, ˙OH and ˙O2- play a dominant role in the photodegradation process. This work contributes to the design of novel photocatalytic materials with dual Z-type heterojunctions and efficient photocatalysts for the degradation of antibiotics.
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Affiliation(s)
- Jianrou Li
- School of Materials Science and Engineering, Anhui University Hefei 230601 Anhui Province P. R. China
| | - Zhuangzhuang Yin
- School of Materials Science and Engineering, Anhui University Hefei 230601 Anhui Province P. R. China
| | - Jun Guo
- School of Materials Science and Engineering, Anhui University Hefei 230601 Anhui Province P. R. China
| | - Wei Gan
- School of Materials Science and Engineering, Anhui University Hefei 230601 Anhui Province P. R. China
| | - Ruixin Chen
- School of Materials Science and Engineering, Anhui University Hefei 230601 Anhui Province P. R. China
| | - Miao Zhang
- School of Materials Science and Engineering, Anhui University Hefei 230601 Anhui Province P. R. China
| | - Zhaoqi Sun
- School of Materials Science and Engineering, Anhui University Hefei 230601 Anhui Province P. R. China
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Li S, Sun M, Huang X, Chen H, Zhao J, Li Z. In situ sonochemical synthesis of flower-like N-graphyne/BiOCl 0.5Br 0.5 microspheres for efficient removal of levofloxacin. Dalton Trans 2024; 53:917-931. [PMID: 38105741 DOI: 10.1039/d3dt03418f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
In this work, N-graphyne is in situ coupled with BiOCl0.5Br0.5via a facile one-step sonochemical method. To our knowledge, both the synthesis strategy for BiOCl0.5Br0.5 and the N-graphyne/BiOCl0.5Br0.5 photocatalytic system are new developments. A collection of characterization methods is adopted to detect the morphologies, structures, and electronic and optical properties. The results demonstrate that wrinkle-like N-graphyne nanosheets successfully enwind around or on flower-like BiOCl0.5Br0.5 microspheres, which are regularly assembled by BiOCl0.5Br0.5 nanosheets. Compared with pristine BiOCl0.5Br0.5, N-graphyne/BiOCl0.5Br0.5 composites exhibit superior adsorption capacity and visible-light-driven photocatalytic degradation of levofloxacin. In particular, the optimal N-graphyne amount for ameliorating the photocatalytic performance of BiOCl0.5Br0.5 is ascertained. In addition, the good stable performance for photocatalysis is confirmed by four cycling experiments. The dominant active species is confirmed to be O2˙- during photodegradation. The improved photocatalytic activity is attributed to the enhanced visible light response and the accelerated transfer/separation of photogenerated carriers by N-graphyne, which are verified using UV-vis absorption spectra, photocurrents, photopotentials, Nyquist plots, and Mott-Schottky curves. This study develops a new perspective for the synthesis and modification of BiOX solid solution, which can be used as an efficient photocatalyst.
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Affiliation(s)
- Shuyan Li
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Mingxuan Sun
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Xiangzhi Huang
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Haohao Chen
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Junjie Zhao
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
| | - Ziyang Li
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China.
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Cerón-Urbano L, Aguilar CJ, Diosa JE, Mosquera-Vargas E. Nanoparticles of the Perovskite-Structure CaTiO 3 System: The Synthesis, Characterization, and Evaluation of Its Photocatalytic Capacity to Degrade Emerging Pollutants. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2967. [PMID: 37999321 PMCID: PMC10674298 DOI: 10.3390/nano13222967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/01/2023] [Accepted: 11/08/2023] [Indexed: 11/25/2023]
Abstract
In this research work, the photocatalytic capacity shown by the nanoparticles of the CaTiO3 system was evaluated to degrade two pollutants of emerging concern, namely methyl orange (MO)-considered an organic contaminating substance of the textile industry that is non-biodegradable when dissolved in water-and levofloxacin (LVF), an antibiotic widely used in the treatment of infectious diseases that is released mostly to the environment in its original chemical form. The synthesis process used to obtain these powders was the polymeric precursor method (Pechini), at a temperature of 700 °C for 6 h. The characterization of the obtained oxide nanoparticles of interest revealed the presence of a majority perovskite-type phase with an orthorhombic Pbnm structure and a minority rutile-type TiO2 phase, with a P42/mnm structure and a primary particle size <100nm. The adsorption-desorption isotherms of the synthesized solids had H3-type hysteresis loops, characteristic of mesoporous solids, with a BET surface area of 10.01m2/g. The Raman and FTIR spectroscopy results made it possible to identify the characteristic vibrations of the synthesized system and the characteristic deformations of the perovskite structure, reiterating the results obtained from the XRD analysis. Furthermore, a bandgap energy of ~3.4eV and characteristic emissions in the violet (437 nm/2.8 eV) and orange (611 nm/2.03 eV) were determined for excitation lengths of 250 nm and 325 nm, respectively, showing that these systems have a strong emission in the visible light region and allowing their use in photocatalytic activity to be potentialized. The powders obtained were studied for their photocatalytic capacity to degrade methyl orange (MO) and levofloxacin (LVF), dissolved in water. To quantify the coloring concentration, UV-visible spectroscopy was used considering the variation in the intensity of the characteristic of the greatest absorption, which correlated with the change in the concentration of the contaminant in the solution. The results showed that after irradiation with ultraviolet light, the degradation of the contaminants MO and LVF was 79.4% and 98.1% with concentrations of 5 g/L and 10 g/L, respectively.
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Affiliation(s)
- Lizet Cerón-Urbano
- Grupo de Transiciones de Fase y Materiales Funcionales, Departamento de Física, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Santiago de Cali 760042, Colombia; (L.C.-U.); (C.J.A.); (J.E.D.)
- Centro de Excelencia en Nuevos Materiales (CENM), Universidad del Valle, Santiago de Cali 760042, Colombia
| | - Carol J. Aguilar
- Grupo de Transiciones de Fase y Materiales Funcionales, Departamento de Física, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Santiago de Cali 760042, Colombia; (L.C.-U.); (C.J.A.); (J.E.D.)
- Centro de Excelencia en Nuevos Materiales (CENM), Universidad del Valle, Santiago de Cali 760042, Colombia
| | - Jesús E. Diosa
- Grupo de Transiciones de Fase y Materiales Funcionales, Departamento de Física, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Santiago de Cali 760042, Colombia; (L.C.-U.); (C.J.A.); (J.E.D.)
- Centro de Excelencia en Nuevos Materiales (CENM), Universidad del Valle, Santiago de Cali 760042, Colombia
| | - Edgar Mosquera-Vargas
- Grupo de Transiciones de Fase y Materiales Funcionales, Departamento de Física, Facultad de Ciencias Naturales y Exactas, Universidad del Valle, Santiago de Cali 760042, Colombia; (L.C.-U.); (C.J.A.); (J.E.D.)
- Centro de Excelencia en Nuevos Materiales (CENM), Universidad del Valle, Santiago de Cali 760042, Colombia
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Yueyu S. The synergistic degradation of pollutants in water by photocatalysis and PMS activation. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2023; 95:e10927. [PMID: 37723660 DOI: 10.1002/wer.10927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 09/05/2023] [Accepted: 09/15/2023] [Indexed: 09/20/2023]
Abstract
In recent years, the synergistic degradation of water pollutants through advanced oxidation technology has emerged as a prominent research area due to its integration of various advanced oxidation technologies. The combined utilization of peroxymonosulfate (PMS) activation technology and photocatalysis demonstrates mild and nontoxic characteristics, enabling the degradation of water pollutants across a wide pH range. Moreover, this approach reduces the efficiency of electron hole recombination, broadens the catalyst's light response range, facilitates electron transfer of PMS, and ultimately improves its photocatalytic performance. The paper reviews the current research status of photocatalytic technology and PMS activation technology, respectively, while highlighting the advancements achieved through the integration of photocatalytic synergetic PMS activation technology for water pollutant degradation. Furthermore, this review delves into the mechanisms involving both free radicals and nonradicals in the reaction process and presents a promising prospect for future development in water treatment technology. PRACTITIONER POINTS: Degradation of water pollutants by photocatalysis and PMS synergistic action has emerged. Synergism can enhance the generation of free radicals. This technology can provide theoretical support for actual wastewater treatment.
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Affiliation(s)
- Song Yueyu
- Department of Architecture and Environmental Engineering, Taiyuan University, Taiyuan, China
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Wang Y, Wang M, Liu J, Wang L, Pang H, Su Y, Pan J, Xue Z, Peng Y. BiOI/Bi 2MoO 6 p-n Junction to Enhance Visible Light Photocatalytic Activity toward Environmental Remediation. Inorg Chem 2023. [PMID: 37243623 DOI: 10.1021/acs.inorgchem.3c01012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Photocatalytic degradation of organic pollutants via semiconductors with high visible light response and effective carrier separation is an economical and green route to greatly achieve environmental remediation. Herein, an efficient BiOI/Bi2MoO6 p-n heterojunction was in situ fabricated through hydrothermal method by substituting Mo7O246- species for I ions. The characteristic p-n heterojunction exhibited a strongly enhanced visible light responsive absorption from 500 to 700 nm owing to the narrow band gap of BiOI and a greatly effective separation of photoexcited carriers because of the built-in electric field on the interface between BiOI and Bi2MoO6. Moreover, the flower-like microstructure also promoted the adsorption of organic pollutants owing to the large surface area (about 10.36 m2/g), good for further photocatalytic degradation. As a result, BiOI/Bi2MoO6 p-n heterojunction showed an excellent photocatalytic activity of RhB of almost 95% in a short time of 90 min under wavelength longer than 420 nm, 2.3 and 2.7 times higher compared with single BiOI and Bi2MoO6, respectively. This work offers a promising approach to purify the environment through the utilization of solar energy by constructing efficient p-n junction photocatalysts.
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Affiliation(s)
- Yu'ao Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Meijiao Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Jiahui Liu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Lin Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Hanxiao Pang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Yanbin Su
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Jie Pan
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - ZhenZhen Xue
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
| | - Yanhua Peng
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, Shandong, P. R. China
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Qi Y, Zhao J, Wang H, Zhang A, Li J, Yan M, Guo T. Shaddock peel-derived N-doped carbon quantum dots coupled with ultrathin BiOBr square nanosheets with boosted visible light response for high-efficiency photodegradation of RhB. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 325:121424. [PMID: 36906054 DOI: 10.1016/j.envpol.2023.121424] [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: 12/06/2022] [Revised: 03/03/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
In the present work, we constructed a serials of novel shaddock peel-derived N-doped carbon quantum dots (NCQDs) coupled with BiOBr composites. The result showed that the as-synthesized BiOBr (BOB) was composed of ultrathin square nanosheets and flower-like structure, and NCQDs were uniformly dispersed on the surface of BiOBr. Furthermore, the BOB@NCQDs-5 with optimal NCQDs content displayed the top-flight photodegradation efficiency with ca. 99% of removal rate within 20 min under visible light and possessed excellent recyclability and photostability after 5 cycles. The reason was attributed to relatively large BET surface area, the narrow energy gap, inhibited recombination of charge carriers and excellent photoelectrochemical performances. Meanwhile, the improved photodegradation mechanism and possible reaction pathways were also elucidated in detail. On this basis, the study opens a novel perspective to obtain a highly efficient photocatalyst for practical environment remediation.
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Affiliation(s)
- Yu Qi
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Jinjiang Zhao
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Hongtao Wang
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Aiming Zhang
- Department of Nuclear Environment Science, China Institute for Radiation Protection, No.102 Xuefu Street, Taiyuan 030006, Shanxi, PR China
| | - Jinping Li
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, 79 Yingze West Street, Taiyuan 030024, Shanxi, PR China; Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, No.79 Yingze west street, Taiyuan 030024, Shanxi, PR China
| | - Meifang Yan
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China
| | - Tianyu Guo
- College of Environment Science and Engineering, Taiyuan University of Technology, No. 209 University Street, Jinzhong 030600, Shanxi, PR China; Department of Nuclear Environment Science, China Institute for Radiation Protection, No.102 Xuefu Street, Taiyuan 030006, Shanxi, PR China; Shanxi Key Laboratory of Gas Energy Efficient and Clean Utilization, No.79 Yingze west street, Taiyuan 030024, Shanxi, PR China.
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12
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Zhang J, Li Z, Lei Q, Zhong D, Ke Y, Liu W, Yang L. Significantly activated persulfate by novel carbon quantum dots-modified N-BiOCl for complete degradation of bisphenol-A under visible light irradiation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 870:161804. [PMID: 36731546 DOI: 10.1016/j.scitotenv.2023.161804] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/04/2023] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
The practical application of bismuth-based photocatalysts in the field of micropollutant photodegradation is limited due to their weak light absorption and rapid charge recombination. Herein, we have developed a novel carbon quantum dots-modified N-BiOCl (CDs-N-BiOCl) photocatalyst to activate persulfate (PS) for the complete elimination of endocrine-disruptor bisphenol A (BPA) under visible light irradiation. The photoelectric properties characterization shows that N atoms could replace Cl atoms or adsorb on Bi atoms to form local N 1s states in the BiOCl lattice, accompanied by the introduction of doping energy levels that shorten the electron migration distance. Meanwhile, the decorated CDs could effectively accept the photoinduced electrons from N-BiOCl conduction band to facilitate the charge separation. Thus, the 7%CDs-N-BiOCl (7CNB) nanocomposite synergistically activated PS realized rapid and effective degradation of BPA within 20 min (degradation efficiency and mineralization reached 100 % and 66.4 % respectively). Moreover, the 7CNB/PS system displayed favorable adaptability, durability, and interference resistance. Furthermore, the biotoxicity experiments demonstrated that the photodegradation intermediates promoted the growth of Escherichia coli which indicates its eco-friendliness for practical application. Finally, the electron transfer mechanism and the formation of reactive oxygen species in the photodegradation process were interpreted. In short, this work will present a promising strategy for bismuth-based photocatalysts to be used for the efficient treatment of real water bodies under visible light irradiation.
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Affiliation(s)
- Jianqiao Zhang
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; Luohu District Urban Management and Comprehensive Law Enforcement Bureau, Shenzhen 518003, China
| | - Zhiyang Li
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Qian Lei
- China Railway NO.1 GROUP Co., LTD., Xi'an 710000, China
| | - Dan Zhong
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - YiXin Ke
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - WenJie Liu
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China
| | - Lei Yang
- State Key Laboratory of Urban Water Resource and Environment, Shenzhen Key Laboratory of Organic Pollution Prevention and Control, School of Civil and Environmental Engineering, Harbin Institute of Technology Shenzhen, Shenzhen 518055, China.
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13
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Rationally Designed C-PANI/BiOBr Step-scheme Heterojunction Photocatalyst for Boosting Photodegradation of 17β-estradiol. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
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Xie K, Xu S, Xu K, Hao W, Wang J, Wei Z. BiOCl Heterojunction photocatalyst: Construction, photocatalytic performance, and applications. CHEMOSPHERE 2023; 317:137823. [PMID: 36649899 DOI: 10.1016/j.chemosphere.2023.137823] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 12/14/2022] [Accepted: 01/10/2023] [Indexed: 06/17/2023]
Abstract
BiOCl semiconductors have attracted extensive amounts of attention and have substantial potential in alleviating energy shortages, improving sterilization performance, and solving environmental issues. To improve the optical quantum efficiency of layered BiOCl, the lifetimes of photogenerated electron-hole pairs, and BiOCl reduction capacity. During the past decade, researchers have designed many effective methods to weaken the effects of these limitations, and heterojunction construction is regarded as one of the most promising strategies. In this paper, BiOCl heterojunction photocatalysts designed and synthesized by various research groups in recent years were reviewed, and their photocatalytic properties were tested. Among them, direct Z-scheme and S-scheme photocatalysts have high redox potentials and intense redox capabilities. Hence, they exhibit excellent photocatalytic activity. Furthermore, the applications of BiOCl heterojunctions for pollutant degradation, CO2 reduction, water splitting, N2 fixation, organic synthesis, and tumor ablation are also reviewed. Finally, we summarize research on the BiOCl heterojunctions and put forth new insights on overcoming their present limitations.
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Affiliation(s)
- Kefeng Xie
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China.
| | - Shengyuan Xu
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Kai Xu
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Wei Hao
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Jie Wang
- School of Chemistry and Chemical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China
| | - Zheng Wei
- Cancer Research Institute, Henan Academy Institute of Chinese Medicine, Zhengzhou 450000, Henan, China; School of Basic Medicine Sciences, Henan University of Chinese Medicine; Zhengzhou 450004, China.
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Yu Y, Chen F, Jin X, Min J, Duan H, Li J, Wu Z, Cao B. Oxygen Vacancies-Rich S-Cheme BiOBr/CdS Heterojunction with Synergetic Effect for Highly Efficient Light Emitting Diode-Driven Pollutants Degradation. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:830. [PMID: 36903708 PMCID: PMC10005353 DOI: 10.3390/nano13050830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 02/14/2023] [Accepted: 02/19/2023] [Indexed: 06/18/2023]
Abstract
Recently, the use of semiconductor-based photocatalytic technology as an effective way to mitigate the environmental crisis attracted considerable interest. Here, the S-scheme BiOBr/CdS heterojunction with abundant oxygen vacancies (Vo-BiOBr/CdS) was prepared by the solvothermal method using ethylene glycol as a solvent. The photocatalytic activity of the heterojunction was investigated by degrading rhodamine B (RhB) and methylene blue (MB) under 5 W light-emitting diode (LED) light. Notably, the degradation rate of RhB and MB reached 97% and 93% in 60 min, respectively, which were better than that of BiOBr, CdS, and BiOBr/CdS. It was due to the construction of the heterojunction and the introduction of Vo, which facilitated the spatial separation of carriers and enhanced the visible-light harvest. The radical trapping experiment suggested that superoxide radicals (·O2-) acted as the main active species. Based on valence balance spectra, Mott-Schottky(M-S) spectra, and DFT theoretical calculations, the photocatalytic mechanism of the S-scheme heterojunction was proposed. This research provides a novel strategy for designing efficient photocatalysts by constructing S-scheme heterojunctions and introducing oxygen vacancies for solving environmental pollution.
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Affiliation(s)
- Yang Yu
- Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Fengjuan Chen
- Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China
- Key Laboratory of Energy Materials Chemistry, Ministry of Education, Institute of Applied Chemistry, Xinjiang University, Urumqi 830046, China
| | - Xuekun Jin
- School of Environment, Tsinghua University, Beijing 100084, China
| | - Junyong Min
- Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Haiming Duan
- Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Jin Li
- Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Zhaofeng Wu
- Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China
| | - Biaobing Cao
- Key Laboratory of Solid State Physics and Devices Autonomous Region, School of Physics Science and Technology, Xinjiang University, Urumqi 830046, China
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