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Li Y, Wang W, Chen L, Ma H, Lu X, Ma H, Liu Z. Visible-Light-Driven Z-Type Pg-C 3N 4/Nitrogen Doped Biochar/BiVO 4 Photo-Catalysts for the Degradation of Norfloxacin. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1634. [PMID: 38612148 PMCID: PMC11012328 DOI: 10.3390/ma17071634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2024] [Revised: 03/24/2024] [Accepted: 03/28/2024] [Indexed: 04/14/2024]
Abstract
Antibiotics cannot be effectively removed by traditional wastewater treatment processes, and have become widespread pollutants in various environments. In this study, a Z-type heterojunction photo-catalyst Pg-C3N4 (PCN)/Nitrogen doped biochar (N-Biochar)/BiVO4 (NCBN) for the degradation of norfloxacin (NOR) was prepared by the hydrothermal method. The specific surface area of the NCBN (42.88 m2/g) was further improved compared to BiVO4 (4.528 m2/g). The photo-catalytic performance of the catalyst was investigated, and the N-Biochar acted as a charge transfer channel to promote carrier separation and form Z-type heterojunctions. Moreover, the NCBN exhibited excellent performance (92.5%) in removing NOR, which maintained 70% degradation after four cycles. The main active substance of the NCBN was •O2-, and the possible degradation pathways are provided. This work will provide a theoretical basis for the construction of heterojunction photo-catalysts.
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Affiliation(s)
- Yi Li
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Wenyu Wang
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Lei Chen
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Huifang Ma
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Xi Lu
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Hongfang Ma
- School of Environmental Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Zhibao Liu
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
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2
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Wang N, Wang W, Qi D, Kang G, Wang B, Zhang H, Ruan J, Lei R, Zhang Z, Zhang S, Zhou H. Development of efficient and economic Bi 2O 3/BN/Co 3O 4 composite photocatalyst: Degradation mechanism, pathway and toxicity study of norfloxacin. CHEMOSPHERE 2024; 352:141481. [PMID: 38395366 DOI: 10.1016/j.chemosphere.2024.141481] [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: 09/18/2023] [Revised: 02/06/2024] [Accepted: 02/15/2024] [Indexed: 02/25/2024]
Abstract
The production of cheap, efficient, and stable photocatalysts for degrading antibiotic contaminants remains challenging. Herein, Bi2O3/boron nitride (BN)/Co3O4 ternary composites were synthesized using the impregnation method. The morphological characteristics, structural features, and photochemical properties of the prepared photocatalysts were investigated via X-ray diffraction, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, high-resolution transmission electron microscopy, and ultraviolet-visible (Vis) diffuse reflectance spectrum techniques. BN was used as a charge transfer bridge in the ternary composites, which afforded a heterojunction between the two semiconductors. The formation of the heterojunction substantially enhanced the charge separation and improved the photocatalyst performance. The degradation activity of the Bi2O3/BN/Co3O4 ternary composites against norfloxacin (NOR) under Vis light irradiation was investigated. The degradation rate of NOR using 5-wt% Bi2O3/BN/Co3O4 reached 98% in 180 min, indicating excellent photocatalytic performance. The ternary composites also exhibited high photostability with a degradation efficiency of 88.4% after five cycles. Hydroxyl radicals (•OH), superoxide radicals (•O2-), and holes (h+) played a synergistic role in the photocatalytic reaction, where h+ and •O2- were more important than •OH. Consequently, seven intermediates and major photocatalytic degradation pathways were identified. Toxicity experiments showed that the toxicity of the degradation solution to Chlorella pyrenoidosa decreased. Finally, the ecotoxicity of NOR and its intermediates were analyzed using the Toxicity Estimation Software Tool, with most intermediates exhibiting low toxicity.
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Affiliation(s)
- Ning Wang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China; Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, 219 Ningliu Road, Nanjing 210044, China
| | - Wei Wang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Dan Qi
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Guodong Kang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Bo Wang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Houhu Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Jiuli Ruan
- State Environmental Protection Key Laboratory of Ecological Industry, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Rongrong Lei
- Xinjiang Tianxi Environmental Protection Technology Co., LTD, Wulumuqi 830026, China
| | - Zhenhua Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China
| | - Shenghu Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China.
| | - Hao Zhou
- Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, China.
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Wu Z, Chen Q, Wu S. Photocatalytic degradation of norfloxacin antibiotics on Zn xCd (1-x)S/g-C 3N 4 composites in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:16473-16484. [PMID: 38321280 DOI: 10.1007/s11356-024-32238-9] [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: 10/18/2023] [Accepted: 01/25/2024] [Indexed: 02/08/2024]
Abstract
g-C3N4/ZnxCd(1-x)S composites were synthesized by a simple hydrothermal method. The composites were characterized by X-ray diffraction, UV-vis diffuse reflectance spectroscopy, infrared spectroscopy, and electron micro-projective microscopy. According to the performance of ZnxCd(1-x)S for the photocatalytic degradation of norfloxacin under visible light in water, the best stoichiometric number of x was 0.5. The best photolytic norfloxacin degradation rate of g-C3N4/ZnxCd(1-x)S composites was 89.8%, which was obtained when the dosage ratio of g-C3N4 to ZnxCd(1-x)S was 1:1. The experiment was conducted to investigate the effect of pH on the catalyst to obtain the optimal NORF degradation environment pH in the range of 7 ± 0.3; by simulating the anions that may be contained in the actual environmental water, the results showed that the catalyst has a certain effect on the degradation of NORF when the water contains NO3-, Cl- and HCO3-. In addition, this study also obtained that the main active substances produced by the catalyst during degradation were electron-hole pairs by adding different trapping agents in the NORF removal experiments; and the catalyst was able to achieve a degradation rate of 86.1% after four cycles of the experiments, which proved that it had good stability.
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Affiliation(s)
- Zanen Wu
- Anhui Jianzhu University, Hefei, 230601, Anhui, China
| | - Qinjun Chen
- Anhui Jianzhu University, Hefei, 230601, Anhui, China
| | - Shibiao Wu
- Anhui Jianzhu University, Hefei, 230601, Anhui, China.
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Mondal S, Dilly Rajan K, Rathinam M, Neppolian B, Vattikondala G. Enhanced photocatalytic degradation of tetracycline using NiCo-BiVO 4 nanocomposite under visible light irradiation: A noble-metal-free approach for water remediation. CHEMOSPHERE 2024; 350:141012. [PMID: 38145845 DOI: 10.1016/j.chemosphere.2023.141012] [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: 08/28/2023] [Revised: 11/17/2023] [Accepted: 12/19/2023] [Indexed: 12/27/2023]
Abstract
The increasing pollution of water bodies with organic contaminants, including antibiotics, has become a significant environmental concern. In this study, a noble-metal-free alternative, NiCo bimetal cocatalyst, was synthesized and applied to enhance the photocatalytic degradation of the antibiotic tetracycline (TC) using BiVO4 as the photocatalyst under the visible spectrum. The NiCo-BiVO4 nanocomposite exhibited improved visible light absorption, reduced recombination rate of charge carriers, and enhanced electrochemical properties. The photocatalytic degradation of TC was significantly enhanced by the NiCo bimetal modification, with the 2 wt% NiCo-BiVO4 nanocomposite achieving an 87.2% degradation of TC and 82% Total Organic Carbon (TOC) removal within 120 min. The degradation kinetics of TC (target compound) followed a first-order reaction, with photogenerated electrons and holes identified as the primary active species responsible for the degradation process. The recyclability of the catalyst was also demonstrated for multiple runs, indicating its stability. Furthermore, the pathway of TC degradation by 2 wt% NiCo-BiVO4 nanocomposite was proposed based on the detected intermediate products using LC-MS analysis. This study provides a promising approach for developing efficient, noble-metal-free photocatalysts to remove organic contaminants from water sources.
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Affiliation(s)
- Sneha Mondal
- Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Karthik Dilly Rajan
- Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Maheswaran Rathinam
- Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Bernaurdshaw Neppolian
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India
| | - Ganesh Vattikondala
- Department of Physics and Nanotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, 603203, India.
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Geng C, Chen Q, Li Z, Liu M, Chen Z, Tao H, Yang Q, Zhu B, Feng L. Degradation of enrofloxacin by a novel Fe-N-C@ZnO material in freshwater and seawater: Performance and mechanism. ENVIRONMENTAL RESEARCH 2023; 237:116960. [PMID: 37619630 DOI: 10.1016/j.envres.2023.116960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 08/26/2023]
Abstract
In this study, we investigated the doping of Fe-N-C with ZnO (Fe-N-C@ZnO) to enhance its performance in the reduction of biological toxicity and degradation of enrofloxacin (ENR) in seawater. The steady-state/transient fluorescence analysis and free radical quenching test indicated an extremely low electron-hole recombination rate and the generation of reactive oxygen species in Fe-N-C@ZnO, leading to an improvement in the energy efficiency. We compared the ENR degradation efficiencies of Fe-N-C@ZnO and ZnO using both freshwater and seawater. In freshwater, Fe-N-C@ZnO exhibited a slightly higher degradation efficiency (95.00%) than ZnO (90.30%). However, the performance of Fe-N-C@ZnO was significantly improved in seawater compared to that of ZnO. The ENR degradation efficiency of Fe-N-C@ZnO (58.87%) in seawater was 68.39% higher than that of ZnO (34.96%). Furthermore, the reaction rate constant for ENR degradation by Fe-N-C@ZnO in seawater (7.31 × 10-3 min-1) was more than twice that of ZnO (3.58 × 10-3 min-1). Response surface analysis showed that the optimal reaction conditions were a pH of 7.42, a photocatalyst amount of 1.26 g L-1, and an initial ENR concentration of 6.56 mg L-1. Fe-N-C@ZnO prepared at a hydrothermal temperature of 128 °C and heating temperature of 300 °C exhibited the optimal performance for the photocatalytic degradation of ENR. Based on liquid chromatography-mass spectrometry analysis, the degradation processes of ENR were proposed as three pathways: two piperazine routes and one quinolone route.
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Affiliation(s)
- Chuanhui Geng
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution, Zhejiang Ocean University, Zhoushan, 316022, PR China; School of Naval Architecture and Maritime, Zhejiang Ocean University, Zhoushan, 316022, PR China
| | - Qingguo Chen
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution, Zhejiang Ocean University, Zhoushan, 316022, PR China; National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology, Zhejiang Ocean University, Zhoushan, 316022, PR China.
| | - Zhenzhen Li
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution, Zhejiang Ocean University, Zhoushan, 316022, PR China
| | - Mei Liu
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution, Zhejiang Ocean University, Zhoushan, 316022, PR China
| | - Zhi Chen
- Department of Building, Civil and Environmental Engineering, Faculty of Engineering & Computer Sciences, Concordia University, Montreal, Quebec, H3G1M8, Canada
| | - Hengcong Tao
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution, Zhejiang Ocean University, Zhoushan, 316022, PR China; National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology, Zhejiang Ocean University, Zhoushan, 316022, PR China
| | - Qiao Yang
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution, Zhejiang Ocean University, Zhoushan, 316022, PR China
| | - Baikang Zhu
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution, Zhejiang Ocean University, Zhoushan, 316022, PR China; National & Local Joint Engineering Research Center of Harbor Oil & Gas Storage and Transportation Technology, Zhejiang Ocean University, Zhoushan, 316022, PR China
| | - Lijuan Feng
- Zhejiang Key Laboratory of Petrochemical Environmental Pollution, Zhejiang Ocean University, Zhoushan, 316022, PR China
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Baby JN, Akila B, Chiu TW, Sakthinathan S, V AS, Zealma B A, George M. Deep Eutectic Solvent-Assisted Synthesis of a Strontium Tungstate Bifunctional Catalyst: Investigation on the Electrocatalytic Determination and Photocatalytic Degradation of Acetaminophen and Metformin Drugs. Inorg Chem 2023; 62:8249-8260. [PMID: 37202345 DOI: 10.1021/acs.inorgchem.3c00676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In this work, we propose a modified solid-state approach for the sustainable preparation of a SrWO4 bifunctional catalyst using thymol-menthol-based natural deep eutectic green solvents (NADESs). Various spectroscopic and morphological techniques analyzed the as-synthesized SrWO4 particles. Acetaminophen (ATP) and metformin (MTF) were selected as the model drug compounds. The electrochemical detection and photocatalytic degradation of ATP and MTF upon ultraviolet-visible (UV-vis) light irradiation in the presence of as-prepared SrWO4 particles as an active catalyst are examined. The present study displayed that the proposed catalyst SrWO4 has enhanced catalytic activity in achieving the optimum experimental conditions, and linear ranges of ATP = 0.01-25.90 μM and MTF = 0.01-25.90 μM, a lower limit of detection (LOD) value (ATP = 0.0031 μM and MTF = 0.008 μM), and higher sensitivity toward ATP and MTF determination were obtained. Similarly, the rate constant was found to be k = ATP = 0.0082 min-1 and MTF = 0.0296 min-1 according to the Langmuir-Hinshelwood model, benefitting from the excellent synergistic impact of the SrWO4 catalyst toward the photocatalytic degradation of the drug molecule. Hence, this work offers innovative insights into the applicability of the as-prepared SrWO4 bifunctional catalyst as an excellent functional material for the remediation of emerging pollutants in water bodies with a recovery range of 98.2-99.75%.
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Affiliation(s)
- Jeena N Baby
- Department of Chemistry, Stella Maris College, Affiliated to the University of Madras, Chennai, Tamil Nadu 600086, India
- Department of Chemistry, St. Mary's College, Sulthan Bathery, Wayanad, Kerala 673592, India
| | - Balasubramanian Akila
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Te-Wei Chiu
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Subramanian Sakthinathan
- Department of Materials and Mineral Resources Engineering, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan
| | - Abhikha Sherlin V
- Department of Chemistry, Stella Maris College, Affiliated to the University of Madras, Chennai, Tamil Nadu 600086, India
| | - Annie Zealma B
- Department of Chemistry, Stella Maris College, Affiliated to the University of Madras, Chennai, Tamil Nadu 600086, India
| | - Mary George
- Department of Chemistry, Stella Maris College, Affiliated to the University of Madras, Chennai, Tamil Nadu 600086, India
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7
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Jin Y, Huang P, Chen X, Li LP, Lin CY, Chen X, Ding R, Liu J, Chen R. Ciprofloxacin degradation performances and mechanisms by the heterogeneous electro-Fenton with flocculated fermentation biochar. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 324:121425. [PMID: 36898645 DOI: 10.1016/j.envpol.2023.121425] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 03/08/2023] [Indexed: 06/18/2023]
Abstract
Antibiotic fermentation residue flocculated by polymeric ferric sulfate (PFS) has been classified as a "hazardous waste" in China. In this study, it was recycled into antibiotic fermentation residue biochar (AFRB) by pyrolysis and used as a heterogeneous electro-Fenton (EF) catalyst for ciprofloxacin (CIP) degradation. The results show that PFS was reduced to Fe0 and FeS during pyrolysis, which was beneficial for the EF process. The AFRB with mesoporous structures exhibited soft magnetic features, which were convenient for separation. CIP was completely degraded within 10 min by the AFRB-EF process at an initial concentration of 20 mg/L. Increasing the working current and catalyst dosage within a certain range could improve the degradation rate. ·OH and O2·- were the dominant reactive oxygen species that played critical roles for CIP degradation. The antibacterial groups of CIP have been destroyed by the heterogeneous electro-Fenton process and its toxicity was negligible. The AFRB showed satisfactory performance, even though it was recycled five times. This study provide new insights into the resourceful treatment of antibiotic fermentation residues.
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Affiliation(s)
- Yanchao Jin
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou, 350007, China
| | - Peiwen Huang
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Xiongjian Chen
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China
| | - Li-Ping Li
- Research and Development Center for Watershed Environmental Eco-Engineering, Beijing Normal University, Zhuhai, 519087, PR China
| | - Chun-Yan Lin
- School of Materials and Chemical Engineering, Minjiang University, Fuzhou, 350108, Fujian, China; Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou, 350007, China
| | - Xiao Chen
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou, 350007, China
| | - Rui Ding
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou, 350007, China
| | - Jianxi Liu
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou, 350007, China
| | - Riyao Chen
- College of Environmental and Resource Sciences, Fujian Normal University, Fuzhou, 350117, Fujian, China; Fujian Key Laboratory of Pollution Control & Resource Reuse, Fuzhou, 350007, China.
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Checa-Artos M, Barcos-Arias M, Sosa-Del Castillo D, Vanegas ME, Ruiz-Barzola O. Fitorremediación de cinco productos farmaceúticos registrados como contaminantes emergentes en medio acuoso empleando la especie Jacinto de Agua (Eichhornia crassipes). BIONATURA 2023. [DOI: 10.21931/rb/2023.08.01.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023] Open
Abstract
La contaminación de los sistemas acuáticos de agua dulce constituye un problema ambiental recurrente en el ámbito mundial, que se agudiza cada vez más con la presencia frecuente de nuevos compuestos químicos, tal es el caso de los contaminantes emergentes, dentro de los cuales se incluyen los productos farmacéuticos. El objetivo de esta investigación fue estimar la capacidad de la especie jacinto de agua (Eichhornia crassipes) para remover del medio acuoso cinco fármacos altamente recetados y de venta libre como ciprofloxacina, ibuprofeno, sulfametaxazol, diclofenaco y acetaminofén. El trabajo se llevó a cabo en condiciones de invernadero a una temperatura de 25 0C y a un pH de 6,5; con una toma de muestras cada 24 h a diferentes concentraciones (3, 6, 9,12) mg/L.
Para el análisis de las muestras se utilizó Espectrofotometría UV-VIS con lectura directa de las absorbancias de cada uno de los fármacos.
Se empleó la metodología de superficies de respuesta para el análisis estadístico de los datos, lo que permitió determinar los modelos para establecer tiempos y concentraciones óptimas maximizando la absorción de cada producto farmacéutico, así como obtener las pendientes de crecimiento para definir hacia donde se puede proyectar el óptimo.
Los principales resultados en este estudio indican que E. crassipes removió 95% de diclofenaco en soluciones acuosas con una concentración de 3 mg/L en un tiempo de 24 h, seguido de ciprofloxacina y acetaminofén con una remoción máxima de 91,18% y 71% a las 96 h, respectivamente. Mientras que los más bajos porcentajes de remoción se obtuvo para ibuprofeno y sulfametaxazol con 57,56% y 36%, respectivamente.
En el presente estudio, se comprobó la alta capacidad de remoción E. crassipes de los cinco productos farmacéuticos en condiciones controladas, evidenciando una gran posibilidad de aplicación en el campo de la fitorremediación de contaminantes emergentes en medio acuoso, lo cual constituye un importante aporte en este ámbito de la investigación.
Palabras clave: Fitorremediación, contaminantes emergentes, jacinto de agua (Eichhornia crassipes), superficie de respuesta
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Affiliation(s)
- Miriam Checa-Artos
- Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ciencias de la Vida, FCV, Centro de Investigaciones Biotecnológicas del Ecuador, CIBE, Campus Gustavo Galindo Km 30.5 Vía Perimetral, ESPOL, Apartado Postal: 09-01-5863, Guayaquil, Ecuador ; Universidad de las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui S/N, Sangolquí-Ecuador
| | - Milton Barcos-Arias
- Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ciencias de la Vida, FCV, Centro de Investigaciones Biotecnológicas del Ecuador, CIBE, Campus Gustavo Galindo Km 30.5 Vía Perimetral, ESPOL, Apartado Postal: 09-01-5863, Guayaquil, Ecuador; Facultad de Ingenierías. Universidad Espíritu Santo. Samborondón, Ecuador
| | - Daynet Sosa-Del Castillo
- Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ciencias de la Vida, FCV, Centro de Investigaciones Biotecnológicas del Ecuador, CIBE, Campus Gustavo Galindo Km 30.5 Vía Perimetral, ESPOL, Apartado Postal: 09-01-5863, Guayaquil, Ecuador
| | - María Eulalia Vanegas
- Centro de Estudios Ambientales, Departamento de Química Aplicada y Sistemas de Producción, Facultad de Ciencias Químicas, Universidad de Cuenca, Av 12 de Abril y Agustín Cueva, Cuenca, Ecuador
| | - Omar Ruiz-Barzola
- Escuela Superior Politécnica del Litoral, Departamento de Estadística, Universidad de Salamanca, USal, Salamanca-España ESPOL, Facultad de Ciencias de la Vida, FCV, Centro de Investigaciones Biotecnológicas del Ecuador, CIBE, Campus Gustavo Galindo Km 30.5 Vía Perimetral, ESPOL, Apartado Postal: 09-01-5863, Guayaquil, Ecuador
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Feng C, Gu Q, Rong J, Liang Q, Zhou M, Li X, Xu S, Li Z. Porous dual Z-scheme InOOH/RCN/CoWO4 heterojunction with enhanced photothermal-photocatalytic properties towards norfloxacin degradation. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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10
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Yin N, Chen H, Yuan X, Zhang Y, Zhang M, Guo J, Zhang Y, Qiao L, Liu M, Song K. Highly efficient photocatalytic degradation of norfloxacin via Bi 2Sn 2O 7/PDIH Z-scheme heterojunction: Influence and mechanism. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129317. [PMID: 35739807 DOI: 10.1016/j.jhazmat.2022.129317] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/23/2022] [Accepted: 06/05/2022] [Indexed: 06/15/2023]
Abstract
The severe pollution caused by antibiotics has prompted considerable concerns in recent decades. In this study, the Bi2Sn2O7/PDIH Z-scheme heterojunction photocatalyst was synthesized and highly photocatalytic activity on norfloxacin was obtained. The degradation of norfloxacin reached 98.71% in 90 min under visible light. The apparent rate constant of norfloxacin (0.4 903 min-1) was 3.65 and 20 times that of PDIH and the Bi2Sn2O7. Meanwhile, XPS, electrochemical, Photoluminescence spectroscopy and electron paramagnetic resonance results showed that Z-scheme charge-transfer process facilitated the spatial carrier separation and preserve redox capability. Furthermore, the degradation intermediates of norfloxacin and their toxicities were evaluated. Finally, in the view of the survey about the impact of different water matrices, it was found that the Bi2Sn2O7/PDIH maintained high efficiency in raw natural water. This work enriched inorganic/organic heterojunction engineering for PDIH, and provided the enormous potential for combining the Bi2Sn2O7 with PDIH to address the antibiotic pollution issues in the actual water treatment.
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Affiliation(s)
- Nian Yin
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Haoyun Chen
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Xingzhong Yuan
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China.
| | - Yi Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China.
| | - Mingjuan Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Jiayin Guo
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Yuanyuan Zhang
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Lu Qiao
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Mengsi Liu
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
| | - Kexin Song
- College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, Hunan 410082, China
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Density functional theory investigation on aqueous degradation mechanism of norfloxacin initiated by hydroxyl radical. Struct Chem 2022. [DOI: 10.1007/s11224-022-01928-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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