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Ma Y, Lin S, Guo T, Guo C, Li Y, Hou Y, Gao Y, Dong R, Liu S. Exploring the influence of sulfadiazine-induced stress on antibiotic removal and transformation pathway using microalgae Chlorella sp. ENVIRONMENTAL RESEARCH 2024; 256:119225. [PMID: 38797461 DOI: 10.1016/j.envres.2024.119225] [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: 02/17/2024] [Revised: 05/05/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
Sulfadiazine (SDZ) is a kind of anti-degradable antibiotics that is commonly found in wastewater, but its removal mechanism and transformation pathway remain unclear in microalgal systems. This study investigated the effects of initial algae concentration and SDZ-induced stress on microalgal growth metabolism, SDZ removal efficiency, and transformation pathways during Chlorella sp. cultivation. Results showed that SDZ had an inhibitory effect on the growth of microalgae, and increasing the initial algal biomass could alleviate the inhibitory effect of SDZ. When the initial algal biomass of Chlorella sp. was increased to 0.25 g L-1, the SDZ removal rate could reach 53.27%-89.07%. The higher the initial algal biomass, the higher the SOD activity of microalgae, and the better the protective effect on microalgae, which was one of the reasons for the increase in SDZ removal efficiency. Meanwhile, SDZ stress causes changes in photosynthetic pigments, lipids, total sugars and protein content of Chlorella sp. in response to environmental changes. The main degradation mechanisms of SDZ by Chlorella sp. were biodegradation (37.82%) and photodegradation (23%). Most of the degradation products of SDZ were less toxic than the parent compound, and the green algae were highly susceptible to SDZ and its degradation products. The findings from this study offered valuable insights into the tradeoffs between accumulating microalgal biomass and antibiotic toxic risks during wastewater treatment, providing essential direction for the advancement in future research and full-scale application.
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Affiliation(s)
- Yanfang Ma
- College of Engineering, China Agricultural University, Beijing, 100083, PR China
| | - Shupeng Lin
- College of Engineering, China Agricultural University, Beijing, 100083, PR China
| | - Ting Guo
- Key Laboratory for Crop and Animal Integrated Farming, Ministry of Agriculture and Rural Affairs, Nanjing, 210014, PR China
| | - Chunchun Guo
- College of Engineering, China Agricultural University, Beijing, 100083, PR China; Yantai Research Institute, China Agricultural University, Yantai, 264670, PR China
| | - Yitao Li
- Department of Civil and Environmental Engineering, Virginia Tech, Arlington, VA, 22202, USA
| | - Yahan Hou
- College of Engineering, China Agricultural University, Beijing, 100083, PR China; Yantai Research Institute, China Agricultural University, Yantai, 264670, PR China
| | - Yongchang Gao
- Shandong High Speed Renewable Energy Group Limited, Jinan, 250000, PR China
| | - Renjie Dong
- College of Engineering, China Agricultural University, Beijing, 100083, PR China
| | - Shan Liu
- College of Engineering, China Agricultural University, Beijing, 100083, PR China; Yantai Research Institute, China Agricultural University, Yantai, 264670, PR China.
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2
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Zhang C, Yang K, Yuan Y, Cao X, Wang H, Sakamaki T, Li X. Material modification of electrodes in microbial electrochemical system to enhance electrons utilization on the electrode and its impact on microorganisms. JOURNAL OF HAZARDOUS MATERIALS 2024; 475:134908. [PMID: 38889459 DOI: 10.1016/j.jhazmat.2024.134908] [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: 01/24/2024] [Revised: 04/12/2024] [Accepted: 06/12/2024] [Indexed: 06/20/2024]
Abstract
Previous research has established a MES embedding a microbial electrode to facilitate the degradation of antibiotics in water. We modified microbial electrodes in the MES with PEDOT and rGO to enhance electron utilization on electrodes and to further promote antibiotic degradation. Density functional theory calculations on the SMX molecule indicated that the C4-S8 and S8-N27 bonds are the most susceptible to electron attack. The introduction of various functional groups and multivalent elements enhanced the electrodes' capacitance and electron mediation capabilities. This led to enhance both electron utilization on the electrodes and the removal efficiency of SMX. After 120 h, the degradation efficiency of SMX by PEDOT and rGO-modified electrodes increased by 45.47 % and 25.19 %, respectively, compared to unmodified electrodes. The relative abundance of sulfate-reducing and denitrifying bacteria significantly increased in PEDOT and rGO-modified electrodes, while the abundance of nitrifying bacteria and potential antibiotic resistance gene host microbes significantly decreased. The impact of PEDOT modification positively influenced microbial Cellular Processes, including cell growth, death, and motility. This study provides insights into the mechanisms of direct electron involvement in antibiotic degradation steps in microbial electrochemistry, and provides a possible path for improved strategies in antibiotic degradation and sustainable environmental remediation.
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Affiliation(s)
- Chong Zhang
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Ke Yang
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Yali Yuan
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Xian Cao
- School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Hui Wang
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region, Department of Municipal and Environmental Engineering, Faculty of Water Resources and Hydroelectric Engineering, Xi'an University of Technology, Xi'an 710048, China
| | - Takashi Sakamaki
- Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Aoba Aramaki 6-6-06, Sendai 980-8579, Japan
| | - Xianning Li
- School of Energy and Environment, Southeast University, Nanjing 210096, China.
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3
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Zhang X, Guo J, Huang Y, Lu G. Toxicity evolution and control for the UV/H 2O 2 degradation of nitrogen-containing heterocyclic compounds: SDZ and PMM. CHEMOSPHERE 2023; 338:139541. [PMID: 37467855 DOI: 10.1016/j.chemosphere.2023.139541] [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: 04/14/2023] [Revised: 06/06/2023] [Accepted: 07/15/2023] [Indexed: 07/21/2023]
Abstract
This study aimed to achieve toxicity control of sulfadiazine (SDZ) and pirimiphos-methyl (PMM) via the UV/H2O2 process by optimizing the reaction parameters. The results show that both drugs had a good degradation effect under the following parameters: a H2O2 molar ratio of 1:200, and neutral conditions. SDZ and PMM could be degraded by more than 99% within 3 min, respectively. In the Daphnia magna acute toxicity assay and Vibrio fischeri inhibition assay, both SDZ and PMM exhibited a phenomenon of increasing toxicity. Additionally, through the use of density functional theory (DFT) calculation and HPLC-QTOF-MS, 21 transformation products (TPs) were identified, and the principal degradation pathways were proposed. The toxicity of the TPs was determined by comparing the QSAR prediction results with toxicity test data. As a result, under the higher UV light intensity (2300 μW/cm2) and neutral conditions, SDZ showed highest toxicity, whereas PMM showed lowest toxicity under the lowest UV light intensity (450 μW/cm2) and neutral conditions. Four main toxic TPs were identified, and their yields could be reduced by adjusting the reaction parameters. Therefore, the selection of appropriate reaction parameters could reduce the production of toxic TPs and ensure the safety of water environment.
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Affiliation(s)
- Xinke Zhang
- School of Environment, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, 510632, China.
| | - Junjie Guo
- School of Environment, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, 510632, China.
| | - Yao Huang
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Academy of Sciences, Guangzhou, 510650, China.
| | - Gang Lu
- School of Environment, Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, 510632, China.
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Li X, Song H, Zhang G, Zou W, Cao Z, Pan Y, Zhang G, Zhou M. Enhanced organic pollutant removal in saline wastewater by a tripolyphosphate-Fe 0/H 2O 2 system: Key role of tripolyphosphate and reactive oxygen species generation. JOURNAL OF HAZARDOUS MATERIALS 2023; 457:131821. [PMID: 37315414 DOI: 10.1016/j.jhazmat.2023.131821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 05/28/2023] [Accepted: 06/08/2023] [Indexed: 06/16/2023]
Abstract
The effects of tripolyphosphate (TPP) on organic pollutant degradation in saline wastewater using Fe0/H2O2 were systematically investigated to elucidate its mechanism and the main reactive oxygen species (ROS). Organic pollutant degradation was dependent on the Fe0 and H2O2 concentration, Fe0/TPP molar ratio, and pH value. The apparent rate constant (kobs) of TPP-Fe0/H2O2 was 5.35 times higher than that of Fe0/H2O2 when orange II (OGII) and NaCl were used as the target pollutant and model salt, respectively. The electron paramagnetic resonance (EPR) and quenching test results showed that •OH, O2•-, and 1O2 participated in OGII removal, and the dominant ROS were influenced by the Fe0/TPP molar ratio. The presence of TPP accelerates Fe3+/Fe2+ recycling and forms Fe-TPP complexes, which ensures sufficient soluble Fe for H2O2 activation, prevents excessive Fe0 corrosion, and thereby inhibits Fe sludge formation. Additionally, TPP-Fe0/H2O2/NaCl maintained a performance similar to those of other saline systems and effectively removed various organic pollutants. The OGII degradation intermediates were identified using high-performance liquid chromatography-mass spectrometry (HPLC-MS) and density functional theory (DFT), and possible degradation pathways for OGII were proposed. These findings provide a facile and cost-effective Fe-based AOP method for removing organic pollutants from saline wastewater.
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Affiliation(s)
- Xiang Li
- School of Environment, Henan Normal University, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Province, Henan Engineering Laboratory of Environmental Functional Materials and Pollution Control, Xinxiang, Henan 453007, PR China.
| | - Huajing Song
- School of Environment, Henan Normal University, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Province, Henan Engineering Laboratory of Environmental Functional Materials and Pollution Control, Xinxiang, Henan 453007, PR China
| | - Gaili Zhang
- School of Environment, Henan Normal University, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Province, Henan Engineering Laboratory of Environmental Functional Materials and Pollution Control, Xinxiang, Henan 453007, PR China
| | - Wei Zou
- School of Environment, Henan Normal University, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Province, Henan Engineering Laboratory of Environmental Functional Materials and Pollution Control, Xinxiang, Henan 453007, PR China
| | - Zhigguo Cao
- School of Environment, Henan Normal University, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Province, Henan Engineering Laboratory of Environmental Functional Materials and Pollution Control, Xinxiang, Henan 453007, PR China
| | - Yuwei Pan
- College of Biology and the Environment, Nanjing Forestry University, Nanjing 210037, PR China
| | - Guoqing Zhang
- School of Environment, Henan Normal University, Key Laboratory of Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Province, Henan Engineering Laboratory of Environmental Functional Materials and Pollution Control, Xinxiang, Henan 453007, PR China
| | - Minghua Zhou
- Key Laboratory of Pollution Process and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Technology for Complex Trans-Media Pollution, Tianjin Advanced Water Treatment Technology International Joint Research Center, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, PR China.
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5
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Stapleton MJ, Ansari AJ, Hai FI. Antibiotic sorption onto microplastics in water: A critical review of the factors, mechanisms and implications. WATER RESEARCH 2023; 233:119790. [PMID: 36870107 DOI: 10.1016/j.watres.2023.119790] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 06/18/2023]
Abstract
Microplastics as vectors for contaminants in the environment is becoming a topic of public interest. Microplastics have been found to actively adsorb heavy metals, per-fluorinated alkyl substances (PFAS), polychlorinated biphenyls (PCBs), polyaromatic hydrocarbons (PAHs), pharmaceuticals and personal care products (PPCPs) and polybrominated diethers (PBDs) onto their surface. Particular interest in microplastics capacity to adsorb antibiotics needs further attention due to the potential role this interaction plays on antibiotic resistance. Antibiotic sorption experiments have been documented in the literature, but the data has not yet been critically reviewed. This review aims to comprehensively assess the factors that affect antibiotic sorption onto microplastics. It is recognised that the physico- chemical properties of the polymers, the antibiotic chemical properties, and the properties of the solution all play a crucial role in the antibiotic sorption capacity of microplastics. Weathering of microplastics was found to increase the antibiotic sorption capacity by up to 171%. An increase in solution salinity was found to decrease the sorption of antibiotics onto microplastics, in some instances by 100%. pH also has a substantial effect on sorption capacity, illustrating the significance of electrostatic interactions on the sorption of antibiotics onto microplastics. The need for a uniform experimental design when testing antibiotic sorption is highlighted to remove inconsistencies in the data currently presented. Current literature examines the link between antibiotic sorption and antibiotic resistance, however, further studies are still required to fully understand this emerging global crisis.
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Affiliation(s)
- Michael J Stapleton
- Strategic Water Infrastructure Laboratory, School of Civil, Mining, Environmental and Architectural Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Ashley J Ansari
- Strategic Water Infrastructure Laboratory, School of Civil, Mining, Environmental and Architectural Engineering, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Faisal I Hai
- Strategic Water Infrastructure Laboratory, School of Civil, Mining, Environmental and Architectural Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
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Hadidi S. A high-efficiency decomposition method for mono and dimethylmercury induced by low-energy electron attachment (<≈7 eV): A computational insight into the decomposition mechanism of extremely toxic mercury compounds. CHEMOSPHERE 2023; 310:136845. [PMID: 36241118 DOI: 10.1016/j.chemosphere.2022.136845] [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: 06/11/2022] [Revised: 10/03/2022] [Accepted: 10/07/2022] [Indexed: 06/16/2023]
Abstract
Dimethylmercury (DMM) and monomethylmercury (MMM) are extremely toxic and dangerous environmental contaminants. Unfortunately, there is no effective way to remove these substances from the environment. This study looks into the efficient decomposition of DMM and MMM by low-energy electrons. The calculated quantum scattering properties reveal the presence of metastable electronic states in both molecules. An examination of the spatial features of the electronic resonances, as well as the computation and characterization of the vibrational normal modes, suggests possible bond break pathways of the metastable electronic states. Most electronic resonances result in the release of Hg(0), which is easily transported to the gas phase due to its low solubility in water and high volatility.
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Affiliation(s)
- Saba Hadidi
- Department of Inorganic Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran.
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7
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Analysis of the Comparative Growth Kinetics of Paenarthrobacter ureafaciens YL1 in the Biodegradation of Sulfonamide Antibiotics Based on Substituent Structures and Substrate Toxicity. FERMENTATION-BASEL 2022. [DOI: 10.3390/fermentation8120742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The high consumption and emission of sulfonamide antibiotics (SAs) have a considerable threat to humans and ecosystems, so there is a need to develop safer and more effective methods than conventional strategies for the optimal removal of these compounds. In this study, four SAs with different substituents, sulfadiazine (SDZ), sulfamerazine (SMR), sulfamethoxazole (SMX), and sulfamethazine (SMZ) were removed by a pure culture of Paenarthrobacter ureafaciens YL1. The effect of the initial SAs concentration on the growth rate of strain YL1 was investigated. The results showed that the strain YL1 effectively removed various SAs in the concentration range of 0.05–2.4 mmol·L−1. The Haldane model was used to perform simulations of the experimental data, and the regression coefficient of the model indicated that the model had a good predictive ability. During SAs degradation, the maximum specific growth rate of strain YL1 was ranked as SMX > SDZ > SMR > SMZ with constants of 0.311, 0.304, 0.302, and 0.285 h−1, respectively. In addition, the biodegradation of sulfamethoxazole (SMX) with a five-membered substituent was the fastest, while the six-membered substituent of SMZ was the slowest based on the parameters of the kinetic equation. Also, density functional theory (DFT) calculations such as frontier molecular orbitals (FMOs), and molecular electrostatic potential map analysis were performed. It was evidenced that different substituents in SAs can affect the molecular orbital distribution and their stability, which led to the differences in the growth rate of strain YL1 and the degradation rate of SAs. Furthermore, the toxicity of P. ureafaciens is one of the crucial factors affecting the biodegradation rate: the more toxic the substrate and the degradation product are, the slower the microorganism grows. This study provides a theoretical basis for effective bioremediation using microorganisms in SAs-contaminated environments.
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Yu W, Wang Y, Wan S, Sun L, Yu Z. Ultrahigh-efficient BiOBr-x%La@y%CNQDs nanocomposites with enhanced generation and separation of photogenerated carriers towards bisphenol A degradation and toxicity reduction. CHEMOSPHERE 2022; 308:136390. [PMID: 36113661 DOI: 10.1016/j.chemosphere.2022.136390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 08/26/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
In this study, a series of hierarchical flower-like La-doped BiOBr composites modified with carbon nitride quantum dots (BiOBr-x%La@y%CNQDs) was synthesized using a microwave solvothermal method in combination with a calcination method. It was found that La doping and CNQDs co-decorated with BiOBr showed much better photoreactivity for bisphenol A (BPA) degradation than pure BiOBr. The best degradation and mineralization efficiencies of BPA were 100% and 77% within 12 min at La and CNQDs contents of 1% and 1.25%, respectively. Various characterization results demonstrated that this synergistic effect on BiOBr-1%La@1.25%CNQDs was attributed to its improved light-harvesting properties, enhanced photogenerated electron and holes pairs separation and interfacial charge transfer. Degradation pathways were proposed based on active species analysis, identification of nine intermediates, and density functional theory (DFT) calculations. Furthermore, a bioluminescence assay of the inhibition rate of the luminescent bacterium Vibrio qinghaiensis sp. Q67 showed that BiOBr-1%La@1.25%CNQDs have superior detoxification ability. The present study provides some insight into the design of ultrahigh-efficiency nanojunction photocatalysts with a broadened photoabsorption range and improved separation efficiency of photogenerated carriers to enhance the degradation and detoxification performance of BPA.
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Affiliation(s)
- Weili Yu
- Hainan University, Haikou, 570228, PR China
| | - Yan Wang
- Hainan University, Haikou, 570228, PR China
| | - Shungang Wan
- Hainan University, Haikou, 570228, PR China; Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, Haikou, 570228, PR China
| | - Lei Sun
- Hainan University, Haikou, 570228, PR China; Key Laboratory of Advanced Materials of Tropical Island Resources, Ministry of Education, Haikou, 570228, PR China.
| | - Zebin Yu
- School of Resources, Environment and Materials, Guangxi University, Nanning 530004, PR China
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Catalytic oxidation of methylene blue by using Ni-Fe bimetallic catalyst/NaClO system: Performance, kinetics, mechanism, and DFT calculations. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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10
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Yang Y, Li X, Jie B, Zheng Z, Li J, Zhu C, Wang S, Xu J, Zhang X. Electron structure modulation and bicarbonate surrounding enhance Fenton-like reactions performance of Co-Co PBA. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129372. [PMID: 35728314 DOI: 10.1016/j.jhazmat.2022.129372] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Revised: 05/28/2022] [Accepted: 06/10/2022] [Indexed: 06/15/2023]
Abstract
Although several strategies have been developed to improve the efficiency of heterogeneous Fenton-like reactions, investigating the relationship among the electronic properties of the catalyst surface, the complex water matrix and catalytic activity remains challenges. Herein, the electron density of the active site Co(II) in Co Prussian blue analogs (Co-PBAs) is proved to be modulated by the anion source method. The elevated electron density of Co(II) and the higher metallicity of the catalyst lead to an increase in electron transport efficiency as revealed by X-ray photoelectron spectra (XPS), Fourier transform infrared spectroscopy (FT-IR), and density functional theory (DFT) calculations. Furthermore, the negative shift of the D-band center of Co(II) can effectively release intermediates to avoid catalyst poisoning. Bicarbonate has been demonstrated to activate peroxymonosulfate (PMS) by weakening the peroxide bond. Its activation mechanism involves free radical mechanism and non-radical mechanism: the first step is the generation of HCO4-, then it is further hydrolyzed to generate •OH and 1O2, and the other is HCO4- interact with Co(III) to form Co(IV)=O. In addition, the degradation pathways of target contaminants p-nitrophenol and toxicity verification of intermediate products have been investigated. This study provides guidance for the research of Fenton-like reactions.
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Affiliation(s)
- Yiqiong Yang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Xingyu Li
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Borui Jie
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zenghui Zheng
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Jiding Li
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Chengfei Zhu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Shubin Wang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Jingcheng Xu
- School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Xiaodong Zhang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
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Cao S, Zhang Y, Ding K, Xu J, Zhao Y, Wang Y, Xie X, Wang H. Efficient visible light driven degradation of antibiotic pollutants by oxygen-doped graphitic carbon nitride via the homogeneous supramolecular assembly of urea. ENVIRONMENTAL RESEARCH 2022; 210:112920. [PMID: 35167850 DOI: 10.1016/j.envres.2022.112920] [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: 12/20/2021] [Revised: 02/01/2022] [Accepted: 02/06/2022] [Indexed: 06/14/2023]
Abstract
Graphitic carbon nitride (CN), as a non-metal material, has emerged as a promising photocatalyst to address environmental issues with the favorable band gap and chemical stability. The porous oxygen-doped CN nanosheets (CNO) were synthesized by an ecofriendly and efficient self-assembled approach using a sole urea as the precursor. The CNO photocatalysts were derived from the hydrogen-bonded cyanuric acid-urea supramolecular complex, which were obtained by pretreatment of urea at high temperature and pressure. The homogeneous supramolecular assembly was advantageous to the formation of uniform porous and oxygen-doped CN nanosheets. The formation process of the supramolecular intermediate and the CNO nanosheets were investigated. Moreover, doping amount of O in CNO could be controlled by the time of the high-pressure thermal polymerization of urea. The characterization results shown that the O atoms were successfully doped into the framework of CN by substitution the N atoms to form the C-O structures. The obtained CNO photocatalysts demonstrated the excellent visible-light photocatalytic performances for sulfamerazine (SMR) degradation, which was ascribed to synergistic interaction of porous structure and O doping. The degradation intermediates of SMR were identified and the degradation pathway were also proposed. Furthermore, density functional theory (DFT) calculations proved that O doping changed the electronic structure of CN, resulting in more easier to activate O2. This work provides a novel perceptive for the development of high-performance nonmetal photocatalysts by using the homogeneous supramolecular assembly, which exhibits great potential in the environmental treatment.
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Affiliation(s)
- Shihai Cao
- College of Environmental Engineering, Nanjing Institute of Technology, Nanjing, 211167, China
| | - Yu Zhang
- Key Laboratory of Jiangsu Province for Chemical Pollution Control and Resources Reuse, School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Keqiang Ding
- College of Environmental Engineering, Nanjing Institute of Technology, Nanjing, 211167, China
| | - Jianhua Xu
- Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), College of Chemical Engineering, Nanjing Forestry University, 210037, China
| | - Yuqi Zhao
- College of Environmental Engineering, Nanjing Institute of Technology, Nanjing, 211167, China
| | - Yi Wang
- College of Environmental Engineering, Nanjing Institute of Technology, Nanjing, 211167, China
| | - Xianchuan Xie
- Key Laboratory of Poyang Lake Environment and Resource Utilization, Ministry of Education, School of Resources Environmental & Chemical Engineering, Nanchang University, Nanchang, 330031, China; Jiangxi Nanxin Environmental Protection Technology Co. LTD, Jiujiang City of Jiangxi Province, 330300, China.
| | - Huiya Wang
- College of Environmental Engineering, Nanjing Institute of Technology, Nanjing, 211167, China.
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12
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Occurrence, Distribution, and Risk of Organophosphate Flame Retardants in Sediments from Jiulong River Estuary and Adjacent Western Taiwan Strait, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19042449. [PMID: 35206636 PMCID: PMC8872513 DOI: 10.3390/ijerph19042449] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/12/2022] [Accepted: 02/18/2022] [Indexed: 02/04/2023]
Abstract
Organophosphate ester flame retardants (OPFRs) are widely prevalent in the environment and are of significant concern because of their potential toxicity to human health and wildlife. In this study, the concentration, frequency, spatial distribution, potential sources, and ecological risks of OPFRs in sediments from the Jiulong River estuary and the adjacent western Taiwan Strait were investigated. Concentrations of four of the five studied OPFRs were between <LOD and 36.6 ng/g. The distribution of all OPFRs, except 2-Ethylhexyl diphenyl phosphate (EHDPP), remained highly consistent with hydrological (salinity) trends. Furthermore, a significantly positive correlation between EHDPP and total concentrations suggested that it may be the dominant contaminant at both sites. Principal element analysis indicated multiple sources of OPFRs, which were categorized as emissions from road runoff and surface traffic, effects of atmospheric deposition and hydrologic conditions, and a combination of industrial and population effects. Ecological risk indicates that tris (chloroethyl) phosphate (TCEP) and triphosphate ester (2,3-dibromopropyl) (TDBPP) have almost no risk, tris (clorisopropyl) phosphate (TCPP) generally has low risk, while EHDPP has moderate risk with the highest value of 0.487 in the sediments from both sites. Meanwhile, TCPP and TCEP exhibit lower theoretical health risks but are still not negligible. Overall, this work provides data to support global pollutant studies and facilitate the implementation of pollutant control strategies.
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Li C, Tian Q, Zhang Y, Li Y, Yang X, Zheng H, Chen L, Li F. Sequential combination of photocatalysis and microalgae technology for promoting the degradation and detoxification of typical antibiotics. WATER RESEARCH 2022; 210:117985. [PMID: 34953216 DOI: 10.1016/j.watres.2021.117985] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 12/10/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
Antibiotic contamination has become the primary environmental concern due to its potential to induce the emergence and spread of antibiotic resistance genes (ARGs). To obtain the efficient antibiotic removal approach, the combination of photocatalysis and microalgae technology for the efficient removal and reducing environmental risk of three typical antibiotics (norfloxacin, oxytetracycline and sulfamethoxazole) was demonstrated in this study. The g-C3N4 material, with advantages of low cost, simple synthesizing, nontoxic, and wider spectral absorption, was selected and synthesized by an easy thermal polymerization process of urea. Characterization results showed that the prepared material exhibited a typical structure of g-C3N4 and irregular nanosheet structure with the large BET surface area and mesoporous structure. The irradiation wavelength and solution pH showed great influences on the photocatalytic degradation of norfloxacin over g-C3N4 nanosheets. •O2-, h+, and •OH generated by the photocatalysis of g-C3N4 nanosheets were confirmed based on energy band results and electron spin resonance detection, while •O2- was the main contributor to the antibiotics degradation in accordance with scavenging experiments. Many NOR photocatalytic products were identified and degradation pathway was proposed. Due to the formation of many unmineralized products, the acute toxicity of NOR photocatalytic reaction solution was increased. And then, the introduction of microalgae promoted the degradation of some photocatalytic degradation products of NOR, but only Chlorella pyrenoidosa treatment resulted in the decrease of toxicity of NOR reaction solution. This study provides useful information on the application of the combination of photocatalysis and microalgae technology for removal of antibiotics.
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Affiliation(s)
- Chenguang Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Institute of Coastal Environmental Pollution Control, Ocean University of China, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Marine Ecology and Environmental Science Laboratory, Pilot National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Qian Tian
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Institute of Coastal Environmental Pollution Control, Ocean University of China, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Marine Ecology and Environmental Science Laboratory, Pilot National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Yanlei Zhang
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Institute of Coastal Environmental Pollution Control, Ocean University of China, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Marine Ecology and Environmental Science Laboratory, Pilot National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Yuanyuan Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Institute of Coastal Environmental Pollution Control, Ocean University of China, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Marine Ecology and Environmental Science Laboratory, Pilot National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Xiaoman Yang
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Institute of Coastal Environmental Pollution Control, Ocean University of China, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Marine Ecology and Environmental Science Laboratory, Pilot National Laboratory for Marine Science and Technology, Qingdao 266071, China
| | - Hao Zheng
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Institute of Coastal Environmental Pollution Control, Ocean University of China, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Marine Ecology and Environmental Science Laboratory, Pilot National Laboratory for Marine Science and Technology, Qingdao 266071, China.
| | - Lingyun Chen
- Faculty of Agricultural, Life and Environmental Science, University of Alberta, Edmonton, Alberta T6G 2P5, Canada
| | - Fengmin Li
- Key Laboratory of Marine Environment and Ecology, Ministry of Education, Institute of Coastal Environmental Pollution Control, Ocean University of China, Qingdao 266100, China; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Marine Ecology and Environmental Science Laboratory, Pilot National Laboratory for Marine Science and Technology, Qingdao 266071, China.
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Pan C, Zhu F, Wu M, Jiang L, Zhao X, Yang M. Degradation and toxicity of the antidepressant fluoxetine in an aqueous system by UV irradiation. CHEMOSPHERE 2022; 287:132434. [PMID: 34606890 DOI: 10.1016/j.chemosphere.2021.132434] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 09/05/2021] [Accepted: 09/17/2021] [Indexed: 06/13/2023]
Abstract
Fluoxetine (FLU), a selective serotonin reuptake inhibitor, is commonly found in aquatic environments. Ultraviolet (UV) photolysis is widely used to remove certain pharmaceuticals from water and wastewater. The present study aimed to investigate the toxicity of FLU and its transformed products formed during UV photolysis by using zebrafish embryos (Danio rerio) as a model. The degradation rates of FLU for five days were approximately 63.6% ± 2.14%, 84.6% ± 0.99%, and 97.5% ± 0.25% after 15, 30, and 60 min of UV irradiation, respectively. Furthermore, the degradation mechanism was explored using LC-MS measurements and density flooding theory (DFT) theoretical calculations. Comprehensive toxicity preassessment of FLU and its degradation products was carried out using the T.E.S.T. software. The effects of physiological and biochemical parameters and neuron- and apoptosis-related gene expression were examined in zebrafish embryos exposed to non-irradiated (0-min) and irradiated (15, 30- and 60-min) solutions from 4 h post-fertilization (hpf) to 120 hpf. The hatching time of zebrafish embryos exposed to the non-irradiated solution (0-min) and irradiated solution (60-min) was delayed, their heart rate at 48 and 72 hpf increased, and their body length at 120 hpf decreased. Significant differences were found between the non-irradiated (0-min) and UV-irradiated (15- or 30-min) groups. A dynamic response involving acetylcholinesterase (AChE) and superoxide dismutase (SOD) activity was also observed in the non-irradiated and UV-irradiated groups. During the UV treatment experiments, the expression levels of neuron-related and apoptosis-related genes were significantly reduced over time alongside the formation of FLU degradation products. Overall, this study provides new concepts to remove and assess the toxicity of emerging contaminants in aquatic environments and highlights the need to consider the formation and persistence of toxic transformation products.
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Affiliation(s)
- Chenyuan Pan
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Feng Zhu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Minghong Wu
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Lihui Jiang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Xiaoyu Zhao
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
| | - Ming Yang
- School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China.
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Li X, Qin Y, Jia Y, Wang R, Ye Z, Zhou M. Persulfate activation by novel iron–carbon composites for organic contaminant removal: Performance, mechanism, and DFT calculations. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119962] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Wang Y, Gan T, Xiu J, Liu G, Zou H. Degradation of sulfadiazine in aqueous media by peroxymonosulfate activated with biochar-supported ZnFe 2O 4 in combination with visible light in an internal loop-lift reactor. RSC Adv 2022; 12:24088-24100. [PMID: 36128526 PMCID: PMC9400800 DOI: 10.1039/d2ra04573g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Accepted: 08/15/2022] [Indexed: 11/28/2022] Open
Abstract
Solid waste resource utilization and the treatment of wastewater are two important aspects in environmental protection. Here, biochar (BC) derived from municipal sewage sludge has been combined with ZnFe2O4 to form the photocatalyst ZnFe2O4/biochar (ZnFe/BC), and it was used to degrade sulfadiazine (SDZ) in the presence of peroxymonosulfate (PMS) under visible (Vis) light irradiation in an internal loop-airlift reactor (ALR). The surface morphology and structure of ZnFe/BC have been characterized by X-ray diffraction (XRD), scanning electron microscopy equipped with an attachment for energy-dispersive spectroscopy (SEM-EDS), X-ray photoelectron spectroscopy (XPS), and UV-Vis diffuse reflectance spectroscopy (UV-Vis DRS). ZnFe/BC displays outstanding photocatalytic performance and reusability. After four reuse cycles of ZnFe/BC in the Vis/ZnFe/BC/PMS system, the SDZ degradation rate and efficiency still reached 0.082 min−1 and 99.05%, respectively. Reactive species in this system included free radicals SO4˙−, ˙OH, and ˙O2−, as well as non-radicals 1O2, e−, and h+, as established from the results of chemical quenching experiments and electron paramagnetic resonance (EPR) analyses. Moreover, a mechanism of action of the Vis/ZnFe/BC/PMS system for SDZ degradation was proposed. The acute toxicity of the reaction solution towards Photobacterium phosphoreum T3 spp. in the Vis/ZnFe/BC/PMS process increased during the first 40 min and then decreased, illustrating that Vis/ZnFe/BC/PMS provided an effective and safe method for the removal of SDZ. Solid waste resource utilization and the treatment of wastewater are two important aspects in environmental protection.![]()
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Affiliation(s)
- Yan Wang
- Department of Environmental Science and Engineering, Anhui Science and Technology University, Donghua Road 9#, Fengyang, 233100, China
| | - Tao Gan
- Department of Environmental Science and Engineering, Anhui Science and Technology University, Donghua Road 9#, Fengyang, 233100, China
| | - Jingyu Xiu
- Department of Environmental Science and Engineering, Anhui Science and Technology University, Donghua Road 9#, Fengyang, 233100, China
| | - Ganghua Liu
- Department of Environmental Science and Engineering, Anhui Science and Technology University, Donghua Road 9#, Fengyang, 233100, China
| | - Haiming Zou
- Department of Environmental Science and Engineering, Anhui Science and Technology University, Donghua Road 9#, Fengyang, 233100, China
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Radiolysis of cardiovascular drug atenolol in aqueous solution by electron beam: Effect of water components and persulfate addition. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2021.109458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Cao Y, Liu G, Zheng B, Wang X, Li H, Wang G, Zhao L, Wang Y. A sulfamethoxazole molecularly imprinted two-dimensional photonic crystal hydrogel sensor. SOFT MATTER 2021; 17:4969-4978. [PMID: 33899903 DOI: 10.1039/d1sm00176k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
In this paper, a molecularly imprinted two-dimensional photonic crystal hydrogel sensor (SMZ-MIPCH) for the sensitive and label-free recognition of sulfamethoxazole (SMZ) was prepared. The SMZ-MIPCH sensor response performance was investigated via measuring the diameter of the Debye ring (D). When the SMZ-MIPCH sensor recognized SMZ, the diameter of the Debye ring gradually decreased and the particle spacing (d) of the photonic crystals gradually increased. As the SMZ concentration increased from 0 to 10-4 mol L-1, the diameter decreased by 15.2 mm and the corresponding particle spacing increased by 131 nm. As the diffraction peak wavelength of the sensor gradually red-shifted, the color changed from blue to green and finally to orange-red. A good linear relationship was found between the variation of the particle spacing (Δd) and the value of the logarithm of the SMZ concentration (lg c) in the range from 10-16 mol L-1 to 10-10 mol L-1. The limit of detection of the SMZ-MIPCH sensor is 10-16 mol L-1. In the presence of analogues of SMZ, such as sulfisoxazole, sulfadiazine, and sulfamethazine, the diameter changed only slightly, indicating that the SMZ-MIPCH sensor had specific recognition abilities for SMZ. The SMZ-MIPCH sensor has the advantages of high sensitivity, specific recognition, and naked eye detection, and it can be used for the detection of SMZ in water samples.
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Affiliation(s)
- Yunlei Cao
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, P. R. China.
| | - Genqi Liu
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, P. R. China.
| | - Bingqing Zheng
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, P. R. China.
| | - Xinlong Wang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, P. R. China.
| | - Huanhuan Li
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, P. R. China.
| | - Gang Wang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, P. R. China.
| | - Lingli Zhao
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, P. R. China.
| | - Yue Wang
- School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, P. R. China.
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