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Zeng C, Zheng J, Liu J, Lin Q, Liu Y, Wu Y, Luo H, Luo Y. Temperature-modulated morphological changes in MIL-88B(Fe)-derived iron-based materials triggering generation of the peroxymonosulfate nonradical pathway to degrade carbamazepine: The key role of iron nanoparticles and CN. J Colloid Interface Sci 2025; 678:66-78. [PMID: 39277954 DOI: 10.1016/j.jcis.2024.09.102] [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: 08/13/2024] [Revised: 09/02/2024] [Accepted: 09/10/2024] [Indexed: 09/17/2024]
Abstract
Temperature modulation of the synthesis process of MOF-derived composites is not well understood for changes in the peroxymonosulfate catalytic domain. This study synthesized a carbon-based nitrogen-doped (MN@C) MOF-derived composite catalyst derived from MIL-88B(Fe) (Materials Institute Lavoisier) by modulating temperature changes and calcination. Combined with density-functional theory calculations (DFT) analyses showed that changes in iron nanoparticles (FeNP) and CN content caused the alterations of the degradation pathways. MN@C-9 exhibited outstanding activation performance (100 % carbamazepine (CBZ) removal within 10 min). The system maintained efficient operation in different aqueous environments and a wide pH range and demonstrated efficient removal of many pollutants typical of pharmaceuticals and personal care products (PPCPs). After comprehensively analyzing the results of liquid chromatography mass spectrometry (LC-MS) and toxicity prediction, the possible degradation pathways were reasonably speculated, and the toxicity of the byproducts was greatly reduced. This study provides a potential and efficient catalyst preparation strategy for water purification.
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Affiliation(s)
- Chen Zeng
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Junli Zheng
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Jiaxin Liu
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Qintie Lin
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China.
| | - Yuxin Liu
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yajie Wu
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Hao Luo
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Yang Luo
- Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Guangdong Industrial Contaminated Site Remediation Technology and Equipment Engineering Research Center, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
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2
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Sridhar D, Parimalarenganayaki S. Evaluation of sources, spatial and temporal distribution, ecological and health risk associated with CAF (Caffeine) and DEET (N, N-diethyl-meta-toluamide) contamination in the urban groundwater parts of Vellore city, Tamilnadu, India. ENVIRONMENTAL GEOCHEMISTRY AND HEALTH 2025; 47:44. [PMID: 39777560 DOI: 10.1007/s10653-024-02351-2] [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: 07/01/2024] [Accepted: 12/28/2024] [Indexed: 01/11/2025]
Abstract
Urban environments are heavily influenced by various activities, leading to contamination of water sources by emerging contaminants (ECs). Among these, caffeine (CAF) and N, N-diethyl-meta-toluamide (DEET) are notable ECs frequently found in domestic sewage due to human activities. Despite extensive research on emerging contaminants, limited studies have focused on the seasonal variations, human health and ecological risks of CAF and DEET in urban groundwater, particularly in Indian cities. This study aimed to analyze the occurrence, spatial distribution, ecological and health risks of CAF and DEET in groundwater in Vellore city, Tamil Nadu, India. A total of 96 groundwater samples were collected across four seasons in 2022 and analyzed using Hichrom HPLC in an 844 UV/VIS compact Ion Chromatography system. CAF and DEET were detected in 95% and 96% of samples, with mean concentrations of 34 μg/L and 30 μg/L, respectively. Contamination levels were higher during the Southwest Monsoon (SWM) and Northeast Monsoon (NEM) seasons. Health risk assessments for children, women, and men showed that CAF posed significant risks, particularly to children during the NEM season, followed by women and men. Although DEET exhibited lower health risks overall, children remained the most vulnerable group. Statistical analysis confirmed significant differences in exposure levels, with children showing the highest variations. Ecological risk assessment revealed that 96.88% of samples containing CAF posed moderate ecological risks, while 6.25% of DEET samples fell into the same category. This study highlights the widespread presence of CAF and DEET in urban groundwater and their associated health and ecological risks. The findings emphasize the need for effective strategies to monitor and mitigate EC contamination in urban water systems.
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Affiliation(s)
- Daggupati Sridhar
- School of Civil Engineering, Vellore Institute of Technology, Tamil Nadu, Vellore, 632014, India
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3
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Ashraf M, Siddiqui MT, Galodha A, Anees S, Lall B, Chakma S, Ahammad SZ. Pharmaceuticals and personal care product modelling: Unleashing artificial intelligence and machine learning capabilities and impact on one health and sustainable development goals. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 955:176999. [PMID: 39427916 DOI: 10.1016/j.scitotenv.2024.176999] [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: 02/10/2024] [Revised: 10/13/2024] [Accepted: 10/15/2024] [Indexed: 10/22/2024]
Abstract
The presence of pharmaceutical and personal care products (PPCPs) in the environment poses a significant threat to environmental resources, given their potential risks to ecosystems and human health, even in trace amounts. While mathematical modelling offers a comprehensive approach to understanding the fate and transport of PPCPs in the environment, such studies have garnered less attention compared to field and laboratory investigations. This review examines the current state of modelling PPCPs, focusing on their sources, fate and transport mechanisms, and interactions within the whole ecosystem. Emphasis is placed on critically evaluating and discussing the underlying principles, ongoing advancements, and applications of diverse multimedia models across geographically distinct regions. Furthermore, the review underscores the imperative of ensuring data quality, strategically planning monitoring initiatives, and leveraging cutting-edge modelling techniques in the quest for a more holistic understanding of PPCP dynamics. It also ventures into prospective developments, particularly the integration of Artificial Intelligence (AI) and Machine Learning (ML) methodologies, to enhance the precision and predictive capabilities of PPCP models. In addition, the broader implications of PPCP modelling on sustainability development goals (SDG) and the One Health approach are also discussed. GIS-based modelling offers a cost-effective approach for incorporating time-variable parameters, enabling a spatially explicit analysis of contaminant fate. Swin-Transformer model enhanced with Normalization Attention Modules demonstrated strong groundwater level estimation with an R2 of 82 %. Meanwhile, integrating Interferometric Synthetic Aperture Radar (InSAR) time-series with gravity recovery and climate experiment (GRACE) data has been pivotal for assessing water-mass changes in the Indo-Gangetic basin, enhancing PPCP fate and transport modelling accuracy, though ongoing refinement is necessary for a comprehensive understanding of PPCP dynamics. The review aims to establish a framework for the future development of a comprehensive PPCP modelling approach, aiding researchers and policymakers in effectively managing water resources impacted by increasing PPCP levels.
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Affiliation(s)
- Maliha Ashraf
- School of Interdisciplinary Research, Indian Institute of Technology, Delhi, New Delhi 110016, India
| | - Mohammad Tahir Siddiqui
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, Delhi, New Delhi 110016, India
| | - Abhinav Galodha
- School of Interdisciplinary Research, Indian Institute of Technology, Delhi, New Delhi 110016, India
| | - Sanya Anees
- Department of Electronics and Communication Engineering, Netaji Subash University of Technology (NSUT), New Delhi 110078, India.
| | - Brejesh Lall
- Bharti School of Telecommunication Technology and Management, Indian Institute of Technology, Delhi, New Delhi e110016, India
| | - Sumedha Chakma
- Department of Civil Engineering, Indian Institute of Technology, Delhi, New Delhi 110016, India.
| | - Shaikh Ziauddin Ahammad
- Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, Delhi, New Delhi 110016, India.
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4
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Ceolotto N, Jagadeesan K, Xu L, Standerwick R, Robertson M, Barden R, Barnett J, Kasprzyk-Hordern B. Personal care products use during SARS-CoV-2 pandemic: Environmental and public health impact assessment using wastewater-based epidemiology. WATER RESEARCH 2024; 268:122624. [PMID: 39490091 DOI: 10.1016/j.watres.2024.122624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 10/03/2024] [Accepted: 10/11/2024] [Indexed: 11/05/2024]
Abstract
The recent SARS-CoV-2 pandemic had profound consequences on people's wellbeing, societies and economy worldwide. This manuscript discusses public exposure to chemicals of concern in personal care products (parabens and benzophenones) during SARS-CoV-2 pandemic. These were monitored for two years in four catchments (two cities and two towns) in South West England accounting for >1 million people. Results showed slightly higher usage of personal care products in small towns than big cities. Major changes in usage of parabens (p values < 0.05) were observed during national lockdowns (NLs). This is likely due to increased awareness towards personal hygiene. In contrast, benzophenones showed seasonal trends; there were higher correlations with sunshine prevalence and temperature rather than NLs reflecting their usage in sunscreen products. Estimation of per capita intake of parabens and benzophenones using WBE revealed lower intake than the Acceptable Daily Intake (ADI) established by the EFSA; however, the metabolism factor used was considered putative due to the lack of pharmacokinetic studies. Prediction of environmental exposure revealed peaks of higher impact during NLs and first year of pandemic, nevertheless the overall predicted values were below Predicted No Effect Concentrations (PNEC).
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Affiliation(s)
- Nicola Ceolotto
- Department of Chemistry, University of Bath, Bath BA2 7AY, UK; Institute for Sustainability, University of Bath, Bath BA2 7AY, UK; Centre of Excellence in Water Based Early Warning Systems for Health Protection, University of Bath, Bath BA2 7AY, UK
| | - Kishore Jagadeesan
- Department of Chemistry, University of Bath, Bath BA2 7AY, UK; Centre of Excellence in Water Based Early Warning Systems for Health Protection, University of Bath, Bath BA2 7AY, UK
| | - Like Xu
- Department of Chemistry, University of Bath, Bath BA2 7AY, UK
| | - Richard Standerwick
- Wessex Water, Bath BA2 7WW, UK; Environment Agency, Horizon House, Deanery Road, Bristol, UK
| | - Megan Robertson
- Centre of Excellence in Water Based Early Warning Systems for Health Protection, University of Bath, Bath BA2 7AY, UK; Wessex Water, Bath BA2 7WW, UK
| | - Ruth Barden
- Institute for Sustainability, University of Bath, Bath BA2 7AY, UK; Centre of Excellence in Water Based Early Warning Systems for Health Protection, University of Bath, Bath BA2 7AY, UK; Wessex Water, Bath BA2 7WW, UK
| | - Julie Barnett
- Centre of Excellence in Water Based Early Warning Systems for Health Protection, University of Bath, Bath BA2 7AY, UK; Department of Psychology, University of Bath, Bath BA2 7AY, UK
| | - Barbara Kasprzyk-Hordern
- Department of Chemistry, University of Bath, Bath BA2 7AY, UK; Institute for Sustainability, University of Bath, Bath BA2 7AY, UK; Centre of Excellence in Water Based Early Warning Systems for Health Protection, University of Bath, Bath BA2 7AY, UK.
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5
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Díaz LKC, Berná A, Boltes K. Bioelectroremediation of a Real Industrial Wastewater: The Role of Electroactive Biofilm and Planktonic Cells through Enzymatic Activities. TOXICS 2024; 12:614. [PMID: 39195716 PMCID: PMC11359648 DOI: 10.3390/toxics12080614] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 08/09/2024] [Accepted: 08/13/2024] [Indexed: 08/29/2024]
Abstract
Bioelectrochemical processes are emerging as one of the most efficient and sustainable technologies for wastewater treatment. Their application for industrial wastewater treatment is still low due to the high toxicity and difficulty of biological treatment for industrial effluents. This is especially relevant in pharmaceutical industries, where different solvents, active pharma ingredients (APIs), extreme pH, and salinity usually form a lethal cocktail for the bacterial community in bioreactors. This work evaluates the impact of the anode architecture on the detoxification performance and analyzes, for the first time, the profile of some key bioremediation enzymes (catalase and esterase) and reactive oxygen species (ROS) during the operation of microbial electrochemical cells treating real pharmaceutical wastewater. Our results show the existence of oxidative stress and loss of cell viability in planktonic cells, while the electrogenic bacteria that form the biofilm maintain their biochemical machinery intact, as observed in the bioelectrochemical response. Monitorization of electrical current flowing in the bioelectrochemical system showed how electroactive biofilm, after a short adaptation period, started to degrade the pharma effluent. The electroactive biofilms are responsible for the detoxification of this type of industrial wastewater.
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Affiliation(s)
- Laura Katherin Chaparro Díaz
- Departamento de Química Analítica Química Física e Ingeniería Química, Campus Científico Tecnológico, Universidad de Alcalá, Ctra. A-II km 33.6, 28871 Alcalá de Henares, Madrid, Spain
| | - Antonio Berná
- IMDEA Water, Avda. Punto Com, 2, 28805 Alcalá de Henares, Madrid, Spain;
| | - Karina Boltes
- Departamento de Química Analítica Química Física e Ingeniería Química, Campus Científico Tecnológico, Universidad de Alcalá, Ctra. A-II km 33.6, 28871 Alcalá de Henares, Madrid, Spain
- IMDEA Water, Avda. Punto Com, 2, 28805 Alcalá de Henares, Madrid, Spain;
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6
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Wang X, Zheng Z, Man JHK, Lo IMC. Regulating charge transfer for enhanced PAA activation over sulfur-doped magnetic CoFe 2O 4: A novel strategy for simultaneous micropollutants degradation and bacteria inactivation. WATER RESEARCH 2024; 256:121595. [PMID: 38640561 DOI: 10.1016/j.watres.2024.121595] [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: 01/12/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/21/2024]
Abstract
Micropollutants and bacteria are prevalent pollutants in wastewater, posing significant risks to ecosystems and human health. As peracetic acid (PAA) is being increasingly used as a disinfectant, activation of PAA by low-cost and high-performance activators is a promising strategy for wastewater treatment. In this study, the sulfur-doped magnetic CoFe2O4 (SCFO) is successfully developed for efficient PAA activation to simultaneously decontaminate and disinfect wastewater. PAA/SCFO-0.3 exhibits exceptional performance, degrading 100 % of 8 μM sulfamethoxazole (SMX) with a first-pseudo reaction rate of 1.275 min-1, and achieving 5.3-log inactivation of Escherichia coli (E. coli) within 3 min at a PAA dosage of 0.2 mM and catalyst dosage of 0.025 g/L (initial pH 6.5). Scavenging experiments and electron paramagnetic resonance (EPR) analysis identify CH3C(O)O• and CH3C(O)OO• as the dominant reactive species for SMX degradation. The sulfur species in SCFO-0.3 facilitate Co2+ regeneration and regulate charge transfer, promoting PAA activation for SMX degradation. Moreover, the PAA/SCFO-0.3 system demonstrates operational feasibility over a broad range of water matrices and has excellent stability and reusability (maintaining 93 % removal of SMX after 5 cycles), demonstrating its potential for industrial applications. This study provides insights into enhancing PAA activation through sulfur doping in transition metal catalysts and highlights the practical applicability of the PAA/SCFO-0.3 system as an advanced alternative to conventional disinfection for simultaneous decontamination and disinfection in wastewater.
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Affiliation(s)
- Xiaoying Wang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Zexiao Zheng
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Justin H K Man
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China
| | - Irene M C Lo
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, China; Institute for Advanced Study, The Hong Kong University of Science and Technology, Hong Kong, China.
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7
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Min XZ, Zhang ZF, Lu XM, Chen JC, Ma WL, Liu LY, Li WL, Li YF, Kallenborn R. Occurrence and fate of pharmaceuticals and personal care products in a wastewater treatment plant with Bacillus bio-reactor treatment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171589. [PMID: 38461988 DOI: 10.1016/j.scitotenv.2024.171589] [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: 01/20/2024] [Revised: 03/05/2024] [Accepted: 03/07/2024] [Indexed: 03/12/2024]
Abstract
Pharmaceuticals and personal care products (PPCPs) have attracted wide attention due to their environmental impacts and health risks. PPCPs released through wastewater treatment plants (WWTPs) are estimated to be 80 %. Nevertheless, the occurrence of PPCPs in the WWTPs equipped with Bacillus spec.-based bioreactors (BBR) treatment system remains unclear. In this study, sludge and waste water samples were collected during separate winter and summer sampling campaigns from a typical BBR treatment system. The results indicate that out of 58 target PPCPs, 27 compounds were detected in the waste water (0.06-1900 ng/L), and 23 were found in the sludge (0.6-7755 ng/g dw). Paraxanthine was the chemical of the highest abundance in the influent due to the high consumption of the parent compounds caffeine and theobromine. The profile for PPCPs in the wastewater and sludge exhibited no seasonal variation. Overall, the removal of target PPCPs in summer is more effective than the winter. In the BBR bio-reactor, it was found that selected PPCPs (at ng/L level) can be completely removed. The efficiency for individual PPCP removal was increased from 1.0 % to 50 % in this unit, after target specific adjustments of the process. The effective removal of selected PPCPs by the BBR treatment system is explained by combined sorption and biodegradation processing. The re-occurrence of PPCPs in the wastewater was monitored. Negative removal efficiency was explained by the cleavage of Phase II metabolites after the biotransformation process, and the lack of equilibrium for PPCPs in the sludge of the second clarifier. A compound specific risk quotient (RQ) was calculated and applied for studying the potential environmental risks. Diphenhydramine is found with the highest environmental risk in wastewater, and 15 other PPCPs show negligible risks in sewage sludge.
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Affiliation(s)
- Xi-Ze Min
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China; Faculty of Chemistry, Biotechnology & Food Sciences (KBM), Norwegian University of Life Sciences (NMBU), Norway
| | - Zi-Feng Zhang
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China.
| | - Xi-Mei Lu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
| | - Jia-Cheng Chen
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
| | - Wan-Li Ma
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
| | - Li-Yan Liu
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China
| | - Wen-Long Li
- Wadsworth Center, New York State Department of Health, Department of Environmental Health Sciences, School of Public Health, State University of New York at Albany, Albany, NY 12237, United States
| | - Yi-Fan Li
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Heilongjiang Provincial Key Laboratory of Polar Environment and Ecosystem (HPKL-PEE), Harbin Institute of Technology (HIT), Harbin 150090, China; IJRC-PTS-NA, Toronto M2N 6X9, Canada
| | - Roland Kallenborn
- International Joint Research Center for Persistent Toxic Substances (IJRC-PTS), State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; International Joint Research Center for Arctic Environment and Ecosystem (IJRC-AEE), Polar Academy, Harbin Institute of Technology, Harbin 150090, China; Faculty of Chemistry, Biotechnology & Food Sciences (KBM), Norwegian University of Life Sciences (NMBU), Norway
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8
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Li X, Li L, Tang L, Mei J, Fu J. Unveiling combined ecotoxicity: Interactions and impacts of engineered nanoparticles and PPCPs. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 921:170746. [PMID: 38342466 DOI: 10.1016/j.scitotenv.2024.170746] [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: 10/11/2023] [Revised: 01/27/2024] [Accepted: 02/04/2024] [Indexed: 02/13/2024]
Abstract
Emerging contaminants such as engineered nanoparticles (ENPs), pharmaceuticals and personal care products (PPCPs) are of great concern because of their wide distribution and incomplete removal in conventional wastewater and soil treatment processes. The production and usage of ENPs and PPCPs inevitably result in their coexistence in different environmental media, thus posing various risks to organisms in aquatic and terrestrial ecosystems. However, the existing literature on the physicochemical interactions between ENPs and PPCPs and their effects on organisms is rather limited. Therefore, this paper summarized the ecotoxicity of combined ENPs and PPCPs by discussing: (1) the interactions between ENPs and PPCPs, including processes such as aggregation, adsorption, transformation, and desorption, considering the influence of environmental factors like pH, ionic strength, dissolved organic matter, and temperature; (2) the effects of these interactions on bioaccumulation, bioavailability and biotoxicity in organisms at different trophic levels; (3) the impacted of ENPs and PPCPs on cellular-level biological process. This review elucidated the potential ecological hazards associated with the interaction of ENPs and PPCPs, and serves as a foundation for future investigations into the ecotoxicity and mode of action of ENPs, PPCPs, and their co-occurring metabolites.
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Affiliation(s)
- Xiang Li
- Key Laboratory of Organic Compound Pollution Control Engineering, School of Environmental and Chemical Engineering, Shanghai University, China
| | - Liyan Li
- Department of Civil and Environmental Engineering, College of Design and Engineering, National University of Singapore, Singapore
| | - Liang Tang
- Key Laboratory of Organic Compound Pollution Control Engineering, School of Environmental and Chemical Engineering, Shanghai University, China.
| | - Jingting Mei
- Key Laboratory of Organic Compound Pollution Control Engineering, School of Environmental and Chemical Engineering, Shanghai University, China
| | - Jing Fu
- Key Laboratory of Organic Compound Pollution Control Engineering, School of Environmental and Chemical Engineering, Shanghai University, China.
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9
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Bolujoko NB, Olorunnisola D, Poudel S, Omorogie MO, Ogunlaja OO, Olorunnisola CG, Adesina M, Deguenon E, Dougnon V, Alfred MO, Ogunlaja A, Olukanni OD, Msagati TAM, Unuabonah EI. Occurrence profiling, risk assessment, and correlations of antimicrobials in surface water and groundwater systems in Southwest Nigeria. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2024; 26:595-610. [PMID: 38323594 DOI: 10.1039/d3em00516j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2024]
Abstract
The presence of antimicrobials in water has grown into a major global health concern. This study thus focused on the presence, ecological implications, and potential health risks associated with nine antimicrobials: five antibiotics (ampicillin, chloramphenicol, ciprofloxacin, metronidazole, and tetracycline) and four parabens (methylparaben, ethylparaben, propylparaben, and butylparaben) in surface water and groundwater samples collected from three Southwestern States in Nigeria (Osun, Oyo, and Lagos States). These antimicrobials were widely detected across the three States with ciprofloxacin being the most dominant having maximum average concentrations of 189 μg L-1 and 319 μg L-1 in surface water and groundwater respectively. The range of average concentrations of antibiotics in surface water are 47.3-235 μg L-1 (Osun), 27.9-166 μg L-1 (Oyo) and 52.1-159 μg L-1 (Lagos). For groundwater, it is 35.3-180 μg L-1 (Osun), 26.5-181 μg L-1 (Oyo) and 32.3-319 μg L-1 (Lagos). The average concentrations of all parabens were 32.4-153 μg L-1, 53.4-80.1 μg L-1, and 83.2-132 μg L-1 for surface water and 46.7-55.7 μg L-1, 53-117 μg L-1, and 62.4-118 μg L-1 for groundwater in Osun, Oyo, and Lagos States respectively. Methylparaben was most frequently detected paraben with average concentrations of 153 μg L-1 and 117 μg L-1 in surface water and groundwater respectively. The measured environmental concentrations of these antimicrobials pose a significant ecological risk while those of ciprofloxacin and ampicillin pose a high health risk to all population groups studied. The average concentrations of antibiotics investigated in this study exceeded their threshold values for Predicted No-Effect Concentrations (PNEC) associated with resistance selection, except for tetracycline.
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Affiliation(s)
- Nathaniel B Bolujoko
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, 232101, Osun State, Nigeria.
- Department of Chemical Sciences, Faculty of Natural Sciences, Redeemer's University, PMB 230, Ede, Osun State, Nigeria
| | - Damilare Olorunnisola
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, 232101, Osun State, Nigeria.
- Department of Chemical Sciences, Faculty of Natural Sciences, Redeemer's University, PMB 230, Ede, Osun State, Nigeria
- University of Potsdam, Institute of Nutritional Science, 14558 Nuthetal, Arthur-Scheunert-Allee 114-116, Potsdam, Germany
- Institute of Chemistry, University of Potsdam, D-14476 Potsdam, Germany
| | - Sonika Poudel
- Department of Natural Resources and Ecology Management, Oklahoma State University, Stillwater, USA
| | - Martins O Omorogie
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, 232101, Osun State, Nigeria.
- Department of Chemical Sciences, Faculty of Natural Sciences, Redeemer's University, PMB 230, Ede, Osun State, Nigeria
| | - Olumuyiwa O Ogunlaja
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, 232101, Osun State, Nigeria.
- Department of Chemical Sciences, Faculty of Natural and Applied Sciences, Lead City University, Ibadan, Nigeria
| | - Chidinma G Olorunnisola
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, 232101, Osun State, Nigeria.
- Institute of Chemistry, University of Potsdam, D-14476 Potsdam, Germany
| | - Morenike Adesina
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, 232101, Osun State, Nigeria.
- Institute of Chemistry, University of Potsdam, D-14476 Potsdam, Germany
| | - Esther Deguenon
- Research Unit in Applied Microbiology and Pharmacology of Natural Substances, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Benin
| | - Victorien Dougnon
- Research Unit in Applied Microbiology and Pharmacology of Natural Substances, Polytechnic School of Abomey-Calavi, University of Abomey-Calavi, Benin
| | - Moses O Alfred
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, 232101, Osun State, Nigeria.
- Department of Chemical Sciences, Faculty of Natural Sciences, Redeemer's University, PMB 230, Ede, Osun State, Nigeria
| | - Aemere Ogunlaja
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, 232101, Osun State, Nigeria.
- Department of Biological Sciences, Faculty of Natural Sciences, Redeemer's University, PMB 230, Ede, Osun State, Nigeria
| | - Olumide D Olukanni
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, 232101, Osun State, Nigeria.
- Department of Biochemistry, Faculty of Basic Medical Sciences, Redeemer's University, Ede, Nigeria
| | - Titus A M Msagati
- Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, South Africa, The Science Campus, Roodepoort, 1709, Johannesburg, South Africa
| | - Emmanuel I Unuabonah
- African Centre of Excellence for Water and Environmental Research (ACEWATER), Redeemer's University, PMB 230, Ede, 232101, Osun State, Nigeria.
- Department of Chemical Sciences, Faculty of Natural Sciences, Redeemer's University, PMB 230, Ede, Osun State, Nigeria
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10
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Singh G, Wani OA, Egbueri JC, Salaria A, Singh H. Seasonal variation of the quality of groundwater resources for human consumption and industrial purposes in the central plain zone of Punjab, India. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1454. [PMID: 37950111 DOI: 10.1007/s10661-023-12039-2] [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: 06/15/2023] [Accepted: 10/25/2023] [Indexed: 11/12/2023]
Abstract
Due to environmental pollution, climate change, and anthropogenic activities, the judicious use and regular assessment of the quality of groundwater for industrial, agricultural, and drinking purposes had gained a lot of attention across the globe. To assess the seasonal suitability of groundwater based on hydrochemistry and different quality indices, groundwater samples were collected and analyzed for different physicochemical parameters. Our findings indicated that the pH, electrical conductivity (EC), total dissolved solids (TDS), total hardness (TH), and calcium ion (Ca2+) content of groundwater were within acceptable limits of WHO and Bureau of Indian Standards (BIS) guidelines for drinking water. However, chloride content exceeded the acceptable levels, accounting for about 29.1% during the pre-monsoon and 15.3% during the post-monsoon period. Based on the water quality index (WQI), none of the water samples were deemed unsuitable for drinking purposes. However, when considering the synthetic pollution index (SPI), 100% of the samples were categorized as moderately polluted during both the pre-monsoon and post-monsoon periods. For industrial purpose suitability, 39.8 and 30.6% of the water samples had high corrosion tendency for pre-monsoon and post-monsoon seasons, respectively. Additionally, 77.5-93.4% of the total water samples were slightly affected by salinization on the basis of Revelle index. Generally, the groundwater quality for drinking purposes meets the WHO and BIS guidelines, with high corrosion potential for industrial use and slight salinization concerns in the area.
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Affiliation(s)
- Gobinder Singh
- Department of Soil Science, Punjab Agricultural University, Ludhiana, Punjab, India.
| | - Owais Ali Wani
- Department of Division of Soil Science and Agricultural Chemistry, Sher-E-Kashmir University of Agricultural Sciences and Technology of Jammu, Jammu, India
| | | | - Amit Salaria
- Department of Agronomy, Punjab Agricultural University, Ludhiana, Punjab, India
| | - Harinder Singh
- Department of Agronomy, Punjab Agricultural University, Ludhiana, Punjab, India
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11
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Zhang C, Yu Q, Wu G, Fang Y, Shen G, Fan F, Xu K, Ren H, Geng J. Combining large-scale investigation and quantum chemical calculation of pharmaceuticals: Spatiotemporal patterns of occurrence and structural insights into removal. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 908:168081. [PMID: 39492529 DOI: 10.1016/j.scitotenv.2023.168081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/17/2023] [Accepted: 10/21/2023] [Indexed: 11/05/2024]
Abstract
This study investigated the spatiotemporal distribution of 17 pharmaceuticals in wastewater treatment plants (WWTPs) from 17 provinces across China, and explored structural insights into their removal in full-scale wastewater treatment processes by quantum chemistry. Briefly, 10 pharmaceuticals were detected in above 85 % of samples, of which ibuprofen and sulfamethoxazole dominated with concentrations up to the μg/L level. Seasonally, concentrations of psychoactive drugs (PDs) were 1.3-2.6 times higher in summer than in other seasons. Spatially, higher average concentrations were detected in northern WWTPs, and regions with similar economic levels exhibited similar contamination patterns. Pharmaceutical removal in WWTPs ranged from 41.4 % (carbamazepine) to 87.2 % (sulfamethizole), with the secondary treatment segment, especially aerobic treatment units, maintaining an important position. Molecular structural mechanisms behind these removal performances were further revealed. Firstly, we demonstrated a significant association of pharmaceutical overall removal with electrophilicity index (ωcubic) as well as the lowest unoccupied molecular orbital energy (ELUMO). Highly electrophilic pharmaceuticals may persist in WWTPs and their sensitivity to electron exchange reactions accounted for the discrepant removal. In terms of treatment segments, pharmaceuticals with reaction sites masked in molecular structure, such as ibuprofen and venlafaxine, showed a propensity for tertiary treatment suitability. Furthermore, enzymes of aerobic units exhibited excellent docking affinity to pharmaceutical molecules with an average affinity of -7.2 kcal/mol, and hydrogen-bond interactions played an important factor in promoting biodegradation. Our results emphasize the necessity of assessing pharmaceutical contamination on a larger spatiotemporal scale. Moreover, the structural insights into removal phenomena offer scientific molecular-level justification for the design and optimization of pharmaceutical treatment technologies in WWTPs.
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Affiliation(s)
- Chunqiu Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Qingmiao Yu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, PR China
| | - Gang Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Yushi Fang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Guochen Shen
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Fan Fan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Ke Xu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Hongqiang Ren
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China
| | - Jinju Geng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu, PR China; Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of Education, Chongqing University, Chongqing 400044, PR China.
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12
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Dolar D, Ćurić I, Ašperger D. Removal, Adsorption, and Cleaning of Pharmaceutical on Polyamide RO and NF Membranes. Polymers (Basel) 2023; 15:2745. [PMID: 37376394 DOI: 10.3390/polym15122745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/11/2023] [Accepted: 06/19/2023] [Indexed: 06/29/2023] Open
Abstract
Pharmaceuticals are present in various waters and can be almost completely rejected by membrane separation processes, i.e., nanofiltration (NF) and reverse osmosis (RO). Nevertheless, the adsorption of pharmaceuticals can decrease their rejection, so adsorption can be considered a very important removal mechanism. In order to increase the lifetime of the membranes, the adsorbed pharmaceuticals must be cleaned from the membrane. The used pharmaceutical (albendazole), the most common anthelmintic for threatening worms, has been shown to adsorb to the membrane (solute-membrane adsorption). In this paper, which is a novelty, commercially available cleaning reagents, NaOH/EDTA solution, and methanol (20%, 50%, and ≥99.6%) were used for pharmaceutical cleaning (desorption) of the NF/RO membranes used. The effectiveness of the cleaning was verified by Fourier-transform infrared spectra of the membranes. Of all the chemical cleaning reagents used, pure methanol was the only cleaning reagent that removed albendazole from the membranes.
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Affiliation(s)
- Davor Dolar
- University of Zagreb Faculty of Chemical Engineering and Technology, Marulićev trg 19, HR-10000 Zagreb, Croatia
| | - Iva Ćurić
- University of Zagreb Faculty of Chemical Engineering and Technology, Marulićev trg 19, HR-10000 Zagreb, Croatia
| | - Danijela Ašperger
- University of Zagreb Faculty of Chemical Engineering and Technology, Marulićev trg 19, HR-10000 Zagreb, Croatia
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13
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Lu Y, Wang S, Shen Y, Hao C. Photodegradation fate of different dissociation species of antidepressant paroxetine and the effects of metal ion Mg 2+: Theoretical basis for direct and indirect photolysis. CHEMOSPHERE 2023:139070. [PMID: 37279823 DOI: 10.1016/j.chemosphere.2023.139070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/16/2023] [Accepted: 05/28/2023] [Indexed: 06/08/2023]
Abstract
Paroxetine (abbreviated as PXT) has been widely used as one of the standard antidepressants for the treatment of depression. PXT has been detected in the aqueous environment. However, the photodegradation mechanism of PXT remains unclear. The present study aimed to use density functional theory and time-dependent density functional theory to study the photodegradation process of two dissociated forms of PXT in water. The main mechanisms include direct and indirect photodegradation via reaction with ·OH and 1O2 and photodegradation mediated by the metal ion Mg2+. Based on the calculations, PXT and PXT-Mg2+ complexes in water are photodegraded mainly indirectly and directly. It was found that PXT and PXT-Mg2+ complexes were photodegraded by H-abstraction, OH-addition and F-substitution. The main reaction of PXT indirect photolysis is OH-addition reaction, while the main reaction of PXT0-Mg2+ complex is H-abstraction. All the reaction pathways of H-abstraction, OH-addition and F-substitution are exothermic. PXT0 reacts more readily with ·OH or 1O2 in water than PXT+. However, the higher activation energy of PXT with 1O2 indicates that the 1O2 reaction plays a minor role in the photodegradation pathway. The direct photolysis process of PXT includes ether bond cleavage, defluorination, and dioxolane ring-opening reaction. In the PXT-Mg2+ complex, the direct photolysis process occurs via a dioxolane ring opening. Additionally, Mg2+ in water has a dual effect on the direct and indirect photolysis of PXT. In other words, Mg2+ can inhibit or promote their photolytic reactions. Overall, PXT in natural water mainly undergo direct and indirect photolysis reactions with ·OH. The main products include direct photodegradation products, hydroxyl addition products and F-substitution products. These findings provide critical information for predicting the environmental behavior and transformation of antidepressants.
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Affiliation(s)
- Ying Lu
- School of Environmental Science and Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science and Technology, Nanjing, 210044, China
| | - Se Wang
- School of Environmental Science and Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science and Technology, Nanjing, 210044, China.
| | - Yifan Shen
- School of Environmental Science and Engineering, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Nanjing University of Information Science and Technology, Nanjing, 210044, China
| | - Ce Hao
- State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, Liaoning, 116024, China
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14
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Zheng Z, Min J, Wang X, Lung CW, Shih K, Lo IMC. Directional Separation of Highly Reductive Electrons to the Reactive Center in a Magnetic S-Scheme ZnFe 2O 4/A-MoS 2 Heterojunction for Enhanced Peroxymonosulfate Activation toward Pharmaceuticals and Personal Care Product Removal. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023. [PMID: 37227810 DOI: 10.1021/acs.est.2c09122] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Pharmaceuticals and personal care products (PPCPs) are ubiquitous in sewage, adversely affecting ecosystems and human health. In this study, an S-scheme magnetic ZnFe2O4/ammoniated MoS2 (ZnFe2O4/A-MoS2) heterojunction as a visible-light-driven PMS activator for PPCP degradation was developed. ZnFe2O4/A-MoS2 achieves improved photocatalytic activity because the construction of S-scheme heterojunction promotes the separation of the highly reductive photogenerated electrons. The optimized photocatalyst (10%-ZnFe2O4/A-MoS2, 0.2 g/L) achieved 100% removal of 2 ppm carbamazepine (CBZ) within 2.5 min at a PMS dosage of 0.5 mM (initial pH 7.0). Mechanistic investigation revealed that the separated electrons to the ZnFe2O4 reactive center of the heterojunction facilitated PMS activation and generated SO4·- as the dominant reactive species for CBZ degradation. The system exhibited excellent practicability in various samples of actual sewage, where most sewage components negatively impacted CBZ degradation. Further, the chloride ions in high-salinity sewage could be activated to generate additional reactive chlorine species for PPCP degradation. The heterojunction possesses outstanding reusability and stability in treating various water conditions. This work provides mechanistic and practical perspectives in developing novel S-type heterojunctions for recalcitrant pollutant treatment.
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Affiliation(s)
- Zexiao Zheng
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, 00000, China
| | - Jiacheng Min
- Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 00000, China
| | - Xiaoying Wang
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, 00000, China
| | - Cheuk Wai Lung
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, 00000, China
| | - Kaimin Shih
- Department of Civil Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong, 00000, China
| | - Irene M C Lo
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Hong Kong, 00000, China
- Institute for Advanced Study, The Hong Kong University of Science and Technology, Hong Kong, 00000, China
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15
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Ding C, Lei J, Cai Z, Gao M, Zou Z, Li Y, Deng J. Catalytic oxidation activation of peroxymonosulfate over Fe-Co bimetallic oxides for flurbiprofen degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:53355-53369. [PMID: 36854945 DOI: 10.1007/s11356-023-25914-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 02/09/2023] [Indexed: 06/18/2023]
Abstract
In this research, FeCo2O4 nanomaterial was successfully synthesized by a typical sol-gel method and conducted as an effective agent for peroxymonosulfate (PMS) activation to eliminate antibiotics flurbiprofen (FLU), a strong nonsteroidal drug. FeCo2O4 nanomaterial was characterized by XRD, TEM, SEM, and XPS. Various characterization results proved that FeCo2O4 held stable spinel structure. The interfering factors including initial pH, PMS concentration, catalyst dosage, inorganic anions, and humic acid on FLU removal were also discussed. The conclusion was that the removal efficiency of FLU reached 98.2% within 120 min after adding FeCo2O4 (0.4 g L-1) and PMS (3 mM). The optimal pH for FLU degradation was the initial pH of 6.5; too acidic or alkaline was not conductive to the degradation. The existence of HA and Cl- restrained the degradation of FLU, and HCO3- promoted the removal, while the influence of NO3- and SO42- could not be considered. The radical scavenging experiment confirmed that •OH, O2•-, and SO4•- participated in FLU removal and SO4•- functioned a leading role. FeCo2O4 showed high efficiency for PMS activation in pH range of 3.0 to 10.0. After the fourth cycle operation, the FLU removal rate exceeded 76.9%, and the Co leaching rate was low during the catalytic reaction. This study shows that FeCo2O4 nanomaterial is an efficient and environment-friendly catalyst, which can be applied for PMS activation to remove organic pollutants in water.
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Affiliation(s)
- Chunsheng Ding
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310023, China
| | - Jia Lei
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310023, China
| | - Zhiyue Cai
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310023, China
| | - Mengying Gao
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310023, China
| | - Zhaozheng Zou
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310023, China
| | - Yuanfeng Li
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310023, China
| | - Jing Deng
- College of Civil Engineering, Zhejiang University of Technology, Hangzhou, 310023, China.
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16
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Zhang M, Wang W, Lv Z, Wang S. Effects of particle size on the adsorption behavior and antifouling performance of magnetic resins. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:11926-11935. [PMID: 36097309 DOI: 10.1007/s11356-022-22961-6] [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: 02/01/2022] [Accepted: 09/05/2022] [Indexed: 06/15/2023]
Abstract
Adequately choosing the physicochemical characteristics of adsorbent is crucial in improving its adsorption performance. This work investigated the effect of particle size of magnetic resins on adsorption behaviors of tetracycline (TC) and their antifouling performance. Smaller particle size resin Q150 (10-30 μm) shows notably faster TC adsorption kinetics when compared resins with hundreds of microns (Q100 and Q1). Simulated by Weber-Morris equation, the film diffusion time of Q150 was only 20 min, 2-25 times faster than that of other resins. At this adsorption time, Q150 can reach more than 80% of the maximum adsorption, and the ring-like fluorescence images indicate that the molecules are accumulated on the external surface. Q150 also shows better reusability and antifouling performance over Q100 and Q1. After 20 adsorption-desorption cycles, the adsorption capacity of Q150 at 20 min only decreases 9.7%. The presence of tannic acid also only slightly decreases the adsorption capacity. The faster adsorption kinetics and the superior antifouling performance of Q150 make it a promising adsorbent in future use.
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Affiliation(s)
- Mancheng Zhang
- Jiangsu Province Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing, 210036, People's Republic of China.
- Jiangsu Province Engineering Research Center of Soil and Groundwater Pollution Prevention and Control, Nanjing, 210036, People's Republic of China.
| | - Wei Wang
- Jiangsu Province Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing, 210036, People's Republic of China
| | - Zongxiang Lv
- Jiangsu Province Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing, 210036, People's Republic of China
- Jiangsu Province Engineering Research Center of Soil and Groundwater Pollution Prevention and Control, Nanjing, 210036, People's Republic of China
| | - Shui Wang
- Jiangsu Province Key Laboratory of Environmental Engineering, Jiangsu Provincial Academy of Environmental Science, Nanjing, 210036, People's Republic of China
- Jiangsu Province Engineering Research Center of Soil and Groundwater Pollution Prevention and Control, Nanjing, 210036, People's Republic of China
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17
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Effective removal of nitroimidazole antibiotics in aqueous solution by an aluminum-based metal-organic framework: Performance and mechanistic studies. J SOLID STATE CHEM 2023. [DOI: 10.1016/j.jssc.2022.123659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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18
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Vázquez-Tapia I, Salazar-Martínez T, Acosta-Castro M, Meléndez-Castolo KA, Mahlknecht J, Cervantes-Avilés P, Capparelli MV, Mora A. Occurrence of emerging organic contaminants and endocrine disruptors in different water compartments in Mexico - A review. CHEMOSPHERE 2022; 308:136285. [PMID: 36057353 DOI: 10.1016/j.chemosphere.2022.136285] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/26/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
This review compiles the studies (2007-2021) regarding the occurrence of emerging organic contaminants (EOCs) and endocrine disruptors (EDs) in wastewater, surface water and groundwater in Mexico. A total of 174 compounds were detected, including pharmaceuticals, hormones, plasticizers, personal care products, sweeteners, drugs, and pesticides considered as EDs. The levels of EOCs and EDs varied from ng/L to 140 mg/L, depending on the compound, location, and compartment. Raw wastewater was the most studied matrix, showing a greater abundance and number of detected compounds. Nevertheless, surface waters showed high concentrations of bisphenol-A, butylbenzil-phthalate, triclosan, pentachlorophenol, and the hormones estrone, 17 α-ethinylestradiol, and 17 β-estradiol, which exceeded the thresholds set by international guidelines. Concentrations of 17 α-ethinylestradiol and triclosan exceeding the above-mentioned limits were reported in groundwater. Cropland irrigation with raw wastewater was the principal activity introducing EOCs and EDs into groundwater. The groundwater abundance of EOCs was considerably lesser than that of wastewater, highlighting the attenuation capacity of soils/aquifers during wastewater infiltration. However, carbamazepine and N,N-diethyl-meta-toluamide showed higher concentrations in groundwater than those in wastewater, suggesting their accumulation/concentration in soils/pore-waters. Although the contamination of water resources represents one of the most environmental concerns in Mexico, this review brings to light the lack of studies on the occurrence of EOCs in Mexican waters, which is important for public health policies and for developing legislations that incorporates EOCs as priority contaminants in national water quality guidelines. Consequently, the development of legislations will support regulatory compliance for wastewater and drinking water, reducing the human exposure.
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Affiliation(s)
- Ivón Vázquez-Tapia
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Puebla, Atlixcáyotl 5718, Reserva Territorial Atlixcáyotl, Puebla, 72453, Mexico
| | - Tania Salazar-Martínez
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Puebla, Atlixcáyotl 5718, Reserva Territorial Atlixcáyotl, Puebla, 72453, Mexico
| | - Mariana Acosta-Castro
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Puebla, Atlixcáyotl 5718, Reserva Territorial Atlixcáyotl, Puebla, 72453, Mexico
| | - Karen Andrea Meléndez-Castolo
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Puebla, Atlixcáyotl 5718, Reserva Territorial Atlixcáyotl, Puebla, 72453, Mexico
| | - Jürgen Mahlknecht
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, 64149, Nuevo León, Mexico
| | - Pabel Cervantes-Avilés
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Puebla, Atlixcáyotl 5718, Reserva Territorial Atlixcáyotl, Puebla, 72453, Mexico
| | - Mariana V Capparelli
- Instituto de Ciencias del Mar y Limnología, Estación El Carmen, Universidad Nacional Autónoma de México, Ciudad del Carmen, 24157, Mexico
| | - Abrahan Mora
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Puebla, Atlixcáyotl 5718, Reserva Territorial Atlixcáyotl, Puebla, 72453, Mexico.
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19
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Bhatt P, Bhandari G, Bhatt K, Simsek H. Microalgae-based removal of pollutants from wastewaters: Occurrence, toxicity and circular economy. CHEMOSPHERE 2022; 306:135576. [PMID: 35803375 DOI: 10.1016/j.chemosphere.2022.135576] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 06/06/2022] [Accepted: 06/29/2022] [Indexed: 06/15/2023]
Abstract
The natural and anthropogenic sources of water bodies are contaminated with diverse categories of pollutants such as antibiotics, pharmaceuticals, pesticides, heavy metals, organic compounds, and other industrial chemicals. Depending on the type and the origin of the pollutants, the degree of contamination can be categorized into lower to higher concentrations. Therefore, the removal of hazardous chemicals from the environment is an important aspect. The physical, chemical and biological approaches have been developed and implemented to treat wastewaters. The microbial and algal treatment methods have emerged as a growing field due to their eco-friendly and sustainable approach. Particularly, microalgae emerged as a potential organism for the treatment of contaminated water bodies. The microalgae of the genera Chlorella, Anabaena, Ankistrodesmus, Aphanizomenon, Arthrospira, Botryococcus, Chlamydomonas, Chlorogloeopsis, Dunaliella, Haematococcus, Isochrysis, Nannochloropsis, Porphyridium, Synechococcus, Scenedesmus, and Spirulina reported for the wastewater treatment and biomass production. Microalgae have the potential for adsorption, bioaccumulation, and biodegradation. The microalgal strains can mitigate the hazardous chemicals via their diverse cellular mechanisms. Applications of the microalgae strains were found to be effective for sustainable developments and circular economy due to the production of biomass with the utilization of pollutants.
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Affiliation(s)
- Pankaj Bhatt
- Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN, 47906, USA.
| | - Geeta Bhandari
- Department of Biosciences, Swami Rama Himalayan University, Dehradun, 248016, India
| | - Kalpana Bhatt
- Department of Food Science, Purdue University, West Lafayette, IN, USA
| | - Halis Simsek
- Department of Agricultural & Biological Engineering, Purdue University, West Lafayette, IN, 47906, USA.
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Chen M, Bi M, Nie W, Chen Y. New insight into ammonium removal in riverbanks under the exposure of microplastics. JOURNAL OF HAZARDOUS MATERIALS 2022; 440:129725. [PMID: 35963085 DOI: 10.1016/j.jhazmat.2022.129725] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2022] [Revised: 07/29/2022] [Accepted: 08/05/2022] [Indexed: 06/15/2023]
Abstract
Riverbanks play the key role in ammonium removal from runoff entering river. Currently, microplastics (MPs) are frequently detected in riverbanks receiving urban and agricultural runoff. Nevertheless, the effect of MPs accumulation on ammonium removal in riverbanks is still unknown. We utilized sediment flow-through reactors to investigate the impact and mechanism of MPs accumulation on ammonium removal in riverbanks. These results revealed that MPs accumulation decreased ammonium removal in sediment by 8.2 %-12.8 % resulting from the reduction in nitrifier abundance (Nitrososphaera and Nitrososphaeraceae) and genes encoding ammonium and hydroxylamine oxidation (amoA, amoB, amoC, and hao) by MPs accumulation. Furthermore, MPs accumulation decreased the substrate and gene abundance of hydroxylamine oxidation process to reduce N2O emission (16.3 %-34.3 %). Notably, mathematic model verified that sediment physical properties changed by MPs accumulation were direct factors affecting ammonium removal in riverbank. It was suggested that both the biotoxicity of MPs and sediment physical properties should be considered in the ammonium removal process. To summarize, this study for the first time comprehensively clarifies the impact of MPs on the ammonium removal capacity of riverbanks, and provides information for taking measures to protect the ecological function of the riverbank and river ecosystem from MPs and ammonium pollution.
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Affiliation(s)
- Mengli Chen
- College of Environment and Ecology, Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of education, Chongqing University, Chongqing 400045, China
| | - Mohan Bi
- Institute of Biology, Free University of Berlin, Berlin, Germany
| | - Wenbo Nie
- College of Environment and Ecology, Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of education, Chongqing University, Chongqing 400045, China
| | - Yi Chen
- College of Environment and Ecology, Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, Ministry of education, Chongqing University, Chongqing 400045, China.
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21
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Teixeira RA, Lima EC, Benetti AD, Thue PS, Lima DR, Sher F, Dos Reis GS, Rabiee N, Seliem MK, Abatal M. Composite of methyl polysiloxane and avocado biochar as adsorbent for removal of ciprofloxacin from waters. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:74823-74840. [PMID: 35641743 DOI: 10.1007/s11356-022-21176-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
Two carbon composite materials were prepared by mixing avocado biochar and methyl polysiloxane (MK). Firstly, MK was dissolved in ethanol, and then the biochar was added at different times. In sample 1 (R1), the time of adding biochar was immediately after dissolving MK in ethanol, and in sample 2 (R2), after 48 h of MK dissolved in ethanol. The samples were characterized by nitrogen adsorption/desorption measurements obtaining specific surface areas (SBET) of 115 m2 g-1 (R1) and 580 m2 g-1 (R2). The adsorbents were further characterized using scanning electron microscopy, FTIR and Raman spectroscopy, adsorption of vapors of n-heptane and water, thermal analysis, Bohem titration, pHpzc, and C H N elemental analysis. R1 and R2 adsorbents were employed as adsorbents to remove the antibiotic ciprofloxacin from the waters. The t1/2 and t0.95 based on the interpolation of Avrami fractional-order were 20.52 and 246.4 min (R1) and 14.00 and 157.6 min (R2), respectively. Maximum adsorption capacities (Qmax) based on the Liu isotherm were 10.77 (R1) and 63.80 mg g-1 (R2) for ciprofloxacin. The thermodynamic studies showed a spontaneous and exothermic process for both samples, and the value of ΔH° is compatible with physical adsorption.
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Affiliation(s)
- Roberta A Teixeira
- Graduate Program in Water Resources and Environmental Sanitation, Hydraulic Research Institute (IPH), Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Eder C Lima
- Institute of Chemistry, Federal University of Rio Grande Do Sul (UFRGS), Av. Bento Goncalves 9500, RS, Postal Box, 15003, Porto Alegre, ZIP 91501-970, Brazil.
- Graduate Program in Science of Materials (PGCIMAT), Institute of Chemistry, Federal University of Rio Grande Do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, ZIP 91501-970, Brazil.
- Metallurgical, and Materials Engineering (PPGE3M), School of Engineering, Graduate Program in Mine, Federal University of Rio Grande Do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, Brazil.
| | - Antônio D Benetti
- Graduate Program in Water Resources and Environmental Sanitation, Hydraulic Research Institute (IPH), Federal University of Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - Pascal S Thue
- Graduate Program in Science of Materials (PGCIMAT), Institute of Chemistry, Federal University of Rio Grande Do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, ZIP 91501-970, Brazil
| | - Diana R Lima
- Metallurgical, and Materials Engineering (PPGE3M), School of Engineering, Graduate Program in Mine, Federal University of Rio Grande Do Sul (UFRGS), Av. Bento Gonçalves 9500, Porto Alegre, RS, Brazil
| | - Farooq Sher
- Department of Engineering, School of Science and Technology, Nottingham Trent University, Nottingham, NG11 8NS, UK
| | - Glaydson S Dos Reis
- Department of Forest Biomaterials and Technology, Swedish University of Agricultural Sciences, Biomass Technology Centre, 901 83, Umeå, Sweden
| | - Navid Rabiee
- Department of Physics, Sharif University of Technology, P.O. Box 11155-9161, Tehran, Iran
- School of Engineering, Macquarie University, Sydney, NSW, 2109, Australia
| | - Moaaz K Seliem
- Faculty of Earth Science, Beni-Suef University, Beni-Suef, Egypt
| | - Mohamed Abatal
- Facultad de Ingeniería, Universidad Autónoma del Carmen, C.P. 24153, Ciudad del Carmen, Mexico
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22
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Li X, Zhang J, Jin Y, Liu Y, Li N, Wang Y, Du C, Xue Z, Zhang N, Chen Q. Effect of pH-Dependent Homo/Heteronuclear CAHB on Adsorption and Desorption Behaviors of Ionizable Organic Compounds on Carbonaceous Materials. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:12118. [PMID: 36231423 PMCID: PMC9566536 DOI: 10.3390/ijerph191912118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/19/2022] [Accepted: 09/22/2022] [Indexed: 06/16/2023]
Abstract
Herein, the adsorption/desorption behaviors of benzoic acid (BA) and phthalic acid (PA) on three functionalized carbon nanotubes (CNTs) at various pH were investigated, and the charge-assisted H-bond (CAHB) was verified by DFT and FTIR analyses to play a key role. The results indicated that the adsorption order of BA and PA on CNTs was different from Kow of that at pH 2.0, 4.0, and 7.0 caused by the CAHB interaction. The strength of homonuclear CAHB (≥78.96 kJ·mol-1) formed by BA/PA on oxidized CNTs is stronger than that of heteronuclear CAHB formed between BA/PA and amino-functionalized CNTs (≤51.66 kJ·mol-1). Compared with the heteronuclear CAHB (Hysteresis index, HI ≥ 1.47), the stronger homonuclear CAHB leads to clearly desorption hysteresis (HI ≥ 3.51). Additionally, the contribution of homonuclear CAHB (≥52.70%) was also greater than that of heteronuclear CAHB (≤45.79%) at pH 7.0. These conclusions were further confirmed by FTIR and DFT calculation, and the crucial evidence of CAHB formation in FTIR was found. The highlight of this work is the identification of the importance and difference of pH-dependent homonuclear/heteronuclear CAHB on the adsorption and desorption behaviors of ionizable organic compounds on carbonaceous materials, which can provide a deeper understanding for the removal of ionizable organic compounds by designed carbonaceous materials.
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Affiliation(s)
- Xiaoyun Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
- International Joint Research Centre of Shaanxi Province for Pollutants Exposure and Eco-Environmental Health, Xi’an 710119, China
| | - Jinlong Zhang
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Yaofeng Jin
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Yifan Liu
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Nana Li
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Yue Wang
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Cong Du
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Zhijing Xue
- Department of Environmental Science, School of Geography and Tourism, Shaanxi Normal University, Xi’an 710119, China
| | - Nan Zhang
- Environmental Protection Department of Mahe Town, Yuyang District, Yulin 719000, China
| | - Qin Chen
- Northwest Land and Resource Research Center, Shaanxi Normal University, Xi’an 710119, China
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Zuo H, Wu C, Du H, Shi H, Fu Y, Zhang T, Yan Q. Construction of Z-scheme Ag-AgBr/Bi 2O 2CO 3/CNT heterojunctions with remarkable photocatalytic performance using carbon nanotubes as efficient electronic mediators. CHEMOSPHERE 2022; 302:134927. [PMID: 35561777 DOI: 10.1016/j.chemosphere.2022.134927] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 04/22/2022] [Accepted: 05/07/2022] [Indexed: 05/27/2023]
Abstract
It is a useful strategy to use a solid electronic mediator with good conductivity to assist the separation of semiconductor photo-induced electron-hole pairs and the redox of semiconductor materials. In order to construct a photocatalyst for more efficient photocatalytic degradation of antibiotics, a simple hydrothermal and precipitation method was used to construct the Ag-AgBr/Bi2O2CO3/CNT Z-scheme heterojunction by using carbon nanotubes (CNTs) as electronic mediators. Compared with the pristine AgBr, Bi2O2CO3, Bi2O2CO3/CNT, the 30%Ag-AgBr/Bi2O2CO3/CNT photocatalyst has better photocatalytic activity under visible light irradiation, showing the best degradation ability to tetracycline (TC). Meanwhile, the photocatalytic properties of 30%Ag-AgBr/Bi2O2CO3/CNT in different pH and inorganic ions were studied. Finally, the degradation pathway and catalytic mechanism of 30%Ag-AgBr/Bi2O2CO3/CNT photocatalytic degradation of TC were also argued. The construction of the Z-scheme electron transport pathway, in which CNTs were used as electronic mediators, and the SPR effect of Ag and Bi metal, which enable the effective separation and transfer of photo-generated electron-hole pairs, are responsible for the significant improvement in photocatalytic performance. It opens up new possibilities for designing and developing high-efficiency photocatalysts with CNTs as the electronic mediator.
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Affiliation(s)
- Huiru Zuo
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Henan, 450001, China
| | - Chenyu Wu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Henan, 450001, China
| | - Haoyu Du
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Henan, 450001, China
| | - Hao Shi
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Henan, 450001, China
| | - Yiwen Fu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Henan, 450001, China
| | - Tongtong Zhang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Henan, 450001, China
| | - Qishe Yan
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Henan, 450001, China.
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24
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Reclaimed Water Reuse for Groundwater Recharge: A Review of Hot Spots and Hot Moments in the Hyporheic Zone. WATER 2022. [DOI: 10.3390/w14121936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
As an alternative resource, reclaimed water is rich in the various nutrients and organic matter that may irreparably endanger groundwater quality through the recharging process. During groundwater recharge with reclaimed water, hot spots and hot moments (HSHMs) in the hyporheic zones, located at the groundwater–reclaimed water interface, play vital roles in cycling and processing energy, carbon, and nutrients, drawing increasing concern in the fields of biogeochemistry, environmental chemistry, and pollution treatment and prevention engineering. This paper aims to review these recent advances and the current state of knowledge of HSHMs in the hyporheic zone with regard to groundwater recharge using reclaimed water, including the generation mechanisms, temporal and spatial characteristics, influencing factors, and identification indicators and methods of HSHMs in the materials cycle. Finally, the development prospects of HSHMs are discussed. It is hoped that this review will lead to a clearer understanding of the processes controlling water flow and pollutant flux, and that further management and control of HSHMs can be achieved, resulting in the development of a more accurate and safer approach to groundwater recharge with reclaimed water.
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