1
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Xian L, Fan G. N,S,O triply-doped carbon with nanotubes-interwoven nanosheets encapsulated Co nanoparticles for robust antibiotic destruction via activating peroxymonosulfate. ENVIRONMENTAL RESEARCH 2024; 248:118259. [PMID: 38272289 DOI: 10.1016/j.envres.2024.118259] [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: 11/16/2023] [Revised: 12/27/2023] [Accepted: 01/09/2024] [Indexed: 01/27/2024]
Abstract
The development of facile and effective approaches to regulate the stability and reusability of metallic Co catalytic materials towards peroxymonosulfate (PMS) activation for remediating antibiotic pollutants remains challenging. In this study, we develop a one-step pyrolysis strategy to fabricate three-dimensional porous architecture assembled with N,S,O-codoped carbon nanotube-interwoven hierarchically porous carbon nanosheets encapsulated Co nanoparticles (Co@NSOC), which serve as chainmail catalysts for stable and reusable degradation of tetracycline hydrochloride (TCH) through PMS activation. The optimal Co@NSOC-700-activated PMS system presents an excellent removal efficiency of 94.1 % for TCH within 10 min and a high cycling efficiency of 92.9 % after eight cycles. The encapsulated structure, abundant catalytic sites, superior hydrophilicity and strong magnetism contribute to the high performance. Further investigation demonstrates that both radical and nonradical pathways contribute to the TCH destruction, and 1O2 is verified as the dominant reactive substance. The possible degradation pathways and the toxicity of intermediates for TCH are evaluated. This work offers an innovative structure design and surface modulation strategy to fabricate robust catalysts towards environmental remediation.
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Affiliation(s)
- Lin Xian
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China
| | - Guangyin Fan
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu, 610068, China.
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2
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Chen B, Chen Y, Chen S, Duan X, Gao J, Zhang N, He L, Wang X, Huang J, Chen X, Pan X. Iron‑calcium dual crosslinked graphene oxide/alginate aerogel microspheres for extraordinary elimination of tetracycline in complex wastewater: Performance, mechanism, and applications. Int J Biol Macromol 2024; 264:130554. [PMID: 38431001 DOI: 10.1016/j.ijbiomac.2024.130554] [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: 11/08/2023] [Revised: 01/12/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Antibiotics have been considered as a group of emerging contaminants for their stable chemical structure, significant pseudo-persistence, and biological toxicity. Tetracycline (TC), as one of the typical antibiotics frequently detected in environmental media, can cause the dissemination and accumulation of antibiotic resistance gene (ARG), ultimately threatening human health and environmental safety. Herein, a novel iron‑calcium di-crosslinked graphene oxide/alginate (GO/SA-Fe3+-Ca2+) aerogel was facilely synthesized for TC uptake. It was found that the introduction of GO nanosheets and Fe3+ sites into composite enormously enhanced TC removal. Specifically, TC can be stably and efficiently eliminated over the wide pH range of 5-8. The fitted maximum qe with Liu isotherm model at 308 K reached 1664.05 mg/g, surpassing almost all reported sorbents. The pseudo-second-order kinetic model with chemical sorption characteristics better fitted TC adsorption process, which was endothermic and spontaneous in nature. Multifarious adsorptive sites of GO/SA-Fe3+-Ca2+ synergically participated in TC uptake through multi-mechanisms (e.g., π-π EDA, cation-π bonding, H-bonding, Fe3+-coordination, and electrostatic attraction, etc.). The as-prepared composite showed satisfactory TC removal in several runs of adsorption-desorption operations, high salinity, and model aquaculture wastewater. Moreover, the packed-column could continuously run for >200 h until adsorption saturation was achieved with a dynamic adsorption capacity of 216.69 mg/g, manifesting its scale-up engineering applications. All above merits make as-constructed composite an alternative sorbent for eliminating TC from complex wastewater.
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Affiliation(s)
- Bo Chen
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China; School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China
| | - Yuning Chen
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Shuyin Chen
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Xingyu Duan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Jie Gao
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Nuan Zhang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Liucun He
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Xin Wang
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China
| | - Jin Huang
- School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China
| | - Xiaoping Chen
- School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China
| | - Xuejun Pan
- Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Kunming 650500, China.
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3
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Guo H, Yin XY, Zhang LF, Wang ZW, Wang MM, Wang HF. Precursor-oriented design of nano-alumina for efficient removal of antibiotics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 909:168490. [PMID: 37952655 DOI: 10.1016/j.scitotenv.2023.168490] [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: 10/10/2023] [Revised: 11/04/2023] [Accepted: 11/09/2023] [Indexed: 11/14/2023]
Abstract
Rapid and efficient removal of environmental antibiotics is vital to curb bacterial resistance. Through rational precursors-oriented design, we attain the best Al2O3 absorbent by 500 °C calcination of ammonium aluminium carbonate hydroxide (AACH) precursor from NH4HCO3 route (AACH-NH4HCO3-500) for fast and efficient removal of tetracycline (TC) and other antibiotics from environmental waters including high-salinity wastewater. AACH-NH4HCO3-500 (0.25 g·L-1) can remove (69.92 ± 1.78)% of aqueous TC (0.025 g·L-1) within 5 min and (97.62 ± 2.75)% within 2 h, and the adsorption capacity is 444.4 mg·g-1, which is the highest qmax of TC for the 2 h-adsorptions among numerous adsorbents. AACH-NH4HCO3-500 has fine tolerance to the coexisting substances, and can be easily regenerated and reused, and has no harm even discarded. The relations among the synthetic methods, the structural features, and the adsorption functions of Al2O3 are disclosed through a systematic comparison of the commercial Al2O3 and different Al2O3 nanomaterials attained from three precursors produced by five different routes. The reasons behind the exceptional adsorption performance are discussed throughout. Our findings would facilitate the development of excellent adsorbents for removal of other pollutants.
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Affiliation(s)
- Hong Guo
- Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Tianjin 300071, China
| | - Xia-Yin Yin
- Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Tianjin 300071, China
| | - Li-Fen Zhang
- School of Food Engineering, Tianjin Tianshi College, Tianjin 301700, China
| | - Zheng-Wu Wang
- Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Tianjin 300071, China
| | - Man-Man Wang
- School of Public Health, North China University of Science and Technology, No.21 Bohai Road, Caofeidian, Tangshan 063210, Hebei, China
| | - He-Fang Wang
- Research Center for Analytical Sciences, College of Chemistry, Nankai University, Tianjin Key Laboratory of Biosensing and Molecular Recognition, Tianjin 300071, China.
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Sun X, Liu G, Li R, Li L, Dai J, Yang H. Experimental and theoretical revealing of piezo-photocatalyst Bi 2O 2CO 3 for degradation of ciprofloxacin in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:7194-7213. [PMID: 38158523 DOI: 10.1007/s11356-023-31727-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
In this report, we have attempted to experimentally and theoretically reveal a new piezo-photocatalyst Bi2O2CO3 for efficient removal of ciprofloxacin (CIP) from water. Bi2O2CO3 nanoplates were synthesized to evaluate their photocatalytic (irradiation source: simulated-sunlight), piezocatalytic (irradiation source: ultrasonic) and piezo-photocatalytic (irradiation source: simulated-sunlight and ultrasonic) performances for CIP elimination. Under the condition CCIP = 10 mg/L and Ccatalyst = 1 g/L, the piezo-photodegradation rate constant is obtained as kapp = 0.07811 min-1, which surpasses that of photocatalysis (kapp = 0.04686 min-1) and piezocatalysis (kapp = 0.01233 min-1); this phenomenon manifests an obvious piezo-enhanced photocatalytic behavior in terms of the "1 + 1 > 2" principle. The ultrasonic-induced piezoelectric behavior in Bi2O2CO3 nanoplates and involved piezo-photocatalytic mechanism were theoretically elucidated by density functional theory (DFT) and finite-element method (FEM) studies. Additionally, the effects of various factors on the CIP degradation, decomposition mechanism of CIP and toxicity of the decomposition intermediates were also analyzed.
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Affiliation(s)
- Xiaofeng Sun
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Guorong Liu
- School of Science, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Ruishan Li
- School of Science, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Liexiao Li
- School of Science, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Jianfeng Dai
- School of Science, Lanzhou University of Technology, Lanzhou, 730050, China
| | - Hua Yang
- State Key Laboratory of Advanced Processing and Recycling of Non-Ferrous Metals, Lanzhou University of Technology, Lanzhou, 730050, China.
- School of Science, Lanzhou University of Technology, Lanzhou, 730050, China.
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5
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He XS, Pan Q, Xi BD, Zheng J, Liu QY, Sun Y. Volatile and semi-volatile organic compounds in landfill leachate: Concurrence, removal and the influencing factors. WATER RESEARCH 2023; 245:120566. [PMID: 37683521 DOI: 10.1016/j.watres.2023.120566] [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: 07/06/2023] [Revised: 08/23/2023] [Accepted: 08/31/2023] [Indexed: 09/10/2023]
Abstract
Volatile and semi-volatile organic compounds (VOCs and SVOCs) carried by landfilled wastes may enter leachate, and require appropriate treatment before discharge. However, the driving factors of the entry of VOCs and SOVCs into leachate, their removal characteristics during leachate treatment and the dominant factors remain unclear. A global survey of the VOCs and SOVCs in leachate from 103 landfill sites combined with 27 articles on leachate treatment was conducted to clarify the abovementioned question. The results showed that SVOCs such as polycyclic aromatic hydrocarbons (PAHs), phthalate acid esters (PAEs) and phenols were the most frequently detected in leachate on a global scale. However, four kinds of VOCs, i.e., toluene, ethylbenzene, xylenes and benzene, were frequently detected at high concentrations in landfill leachate as well. The concentrations of VOCs and SVOCs in leachate ranged from 1 × 10° to 1 × 108 ng/L. Solubility was a key factor driving the entry of VOCs and SOVCs into leachate, and higher solubility enables higher detectable concentrations in leachate (P<0.05). It was easiest to remove monocyclic aromatic hydrocarbons (MAHs) from leachate, followed by phenols and PAHs, and it was most difficult to remove PAEs. In terms of removing MAHs, the anoxic/oxic (A/O) process and the sequential batch reactor (SBR) process were comparable to the advanced oxidization process and far superior to the ultrafiltration and nanofiltration processes, and the removal rate increased with an increase in the Henry's constant and/or the hydrophilicity of the contaminants during the A/O and SBR processes (P<0.05). There were no significant differences among biological, advanced oxidation and reverse osmosis processes in the removal of phenolic. In terms of removing PAHs, the A/O process was comparable to the advanced oxidization process and more efficient than the other treatment processes. As to removing PAEs, the membrane bioreactor process was almost the same efficient as the advanced oxidization process and far more efficient than the other biological treatment processes. Future research should focus on the pollution of atmospheric VOCs and SVOCs near aeration units in leachate treatment plants, as well as the health risk assessment of VOCs and SVOCs in the treated leachate effluent. To the best of our knowledge, this is the first review regarding the occurrence and removal of VOCs and SVOCs from landfill leachates worldwide.
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Affiliation(s)
- Xiao-Song He
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Qi Pan
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541000, China
| | - Bei-Dou Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
| | - Jing Zheng
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; College of Environmental Science and Engineering, Guilin University of Technology, Guilin, 541000, China
| | - Qing-Yu Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Yue Sun
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China; State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
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6
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Wang Q, Xu Q, Zhai S, Zhao Q, Liu W, Chen Z, Wang A. Understanding the coordination behavior of antibiotics: Take tetracycline as an example. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132375. [PMID: 37634383 DOI: 10.1016/j.jhazmat.2023.132375] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/23/2023] [Accepted: 08/22/2023] [Indexed: 08/29/2023]
Abstract
Gaining insight into the occurrence states of residual antibiotics is crucial to demystify their environmental behavior. However, the complexation of heteroatoms functioned on antibiotic molecules to metal ions in the water environment is not fully understood. This study reports that a fluorescence response was unexpectedly triggered by tetracycline (TC) and Al3+, serving as solid evidence to visualize the Al3+-TC coordination reaction. Differential electron absorption spectroscopy shows a quantifiable signal of the redshifted n-π* transition with a coordination reaction, which is also proportional to the fluorescence. The occurrence of Al3+-complexed TC also caused a split in retention time in liquid chromatogram. The TC ligands were re-released in the presence of stronger ligands competing for central Al3+. The complex ratio of Al3+-TC is confirmed to be 1:1 using Job's plot with a stability constant of 1.01 × 106. Quantum chemical computations coupled with Gibbs free energy analysis simulated the formation of octahedral Al3+-TC configuration through a spontaneous bidentate chelation. This study helps convey a broad consensus and opens a new door in the mechanistic study of metal-involved antibiotic transformation process, leading to a better understanding that can ultimately be essential to reach the final goal of alleviating the antibiotic crisis.
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Affiliation(s)
- Qiandi Wang
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Qiongying Xu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, PR China
| | - Siyuan Zhai
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Qindi Zhao
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Wenzong Liu
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, PR China.
| | - Zhuqi Chen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China; Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China.
| | - Aijie Wang
- CAS Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology (Shenzhen), Shenzhen 518055, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China.
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Guo J, Zhang Y. Reactive Molecular Dynamics Simulation on Degradation of Tetracycline Antibiotics Treated by Cold Atmospheric Plasmas. Molecules 2023; 28:molecules28093850. [PMID: 37175259 PMCID: PMC10180419 DOI: 10.3390/molecules28093850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/15/2023] Open
Abstract
The abuse of tetracycline antibiotics (TCs) has caused serious environmental pollution and risks to public health. Degradation of TCs by cold atmospheric plasmas (CAPs) is a high efficiency, low energy consumption and environmentally friendly method. In this study, a reactive molecular dynamics (MD) simulation is applied to study the interactions of reactive oxygen species (ROS) produced in CAPs and TCs (including tetracycline (TC), oxytetracycline (OTC), chlortetracycline (CTC) and demeclocycline (DMC)). As revealed by the simulation data at the atomic level, the main reaction sites on TCs are the C2 acylamino, the C4 dimethylamine, the C6 methyl group, the C8 site on the benzene ring and the C12a tertiary alcohol. The interaction between ROS and TCs is usually initiated by H-abstraction, followed by the breaking and formation of the crucial chemical bonds, such as the breaking of C-C bonds, C-N bonds and C-O bonds and the formation of C=C bonds and C=O bonds. Due to the different structures of TCs, when the ROS impact OTC, CTC and DMC, some specific reactions are observed, including carbonylation at the C5 site, dechlorination at the C7 site and carbonylation at the C6 site, respectively. Some degradation products obtained from the simulation data have been observed in the experimental measurements. In addition, the dose effects of CAP on TCs by adjusting the number of ROS in the simulation box are also investigated and are consistent with experimental observation. This study explains in detail the interaction mechanisms of degradation of TCs treated by CAPs with the final products after degradation, provides theoretical support for the experimental observation, then suggests optimization to further improve the efficiency of degradation of TCs by CAPs in applications.
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Affiliation(s)
- Jinsen Guo
- School of Electrical Engineering, Shandong University, Jinan 250061, China
| | - Yuantao Zhang
- School of Electrical Engineering, Shandong University, Jinan 250061, China
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Zhao B, Shao N, Chen X, Ma J, Gao Y, Chen X. Construction of novel type II heterojunction WO3/Bi2WO6 and Z-scheme heterojunction CdS/Bi2WO6 photocatalysts with significantly enhanced photocatalytic activity for the degradation of rhodamine B and reduction of Cr(VI). Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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9
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Yukhajon P, Somboon T, Sansuk S. Enhanced adsorption and colorimetric detection of tetracycline antibiotics by using functional phosphate/carbonate composite with nanoporous network coverage. J Environ Sci (China) 2023; 126:365-377. [PMID: 36503763 DOI: 10.1016/j.jes.2022.04.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/06/2022] [Accepted: 04/06/2022] [Indexed: 06/17/2023]
Abstract
This work presents efficient tetracycline (TC) antibiotics adsorption using a functional porous phosphate/carbonate composite (PCC). The PCC was fabricated by anion-exchange of phosphate on the surface of vaterite-phase calcium carbonate particle scaffolds. The PCC, having dense nanoporous network coverage with large surface area and pore volume, exhibited excellent TC adsorption in solution. Its adsorption isotherm fitted well to the Freundlich model, with a maximum adsorption capacity of 118.72 mg/g. The adsorption process was spontaneous, endothermic, and followed pseudo-second-order kinetics. From the XPS analysis, the hydrogen bonding and surface complexation were the key interactions in the process. In addition, a colorimetric TC detection method was developed considering its complexation with phosphate ions, originating from PCC dissolution, during adsorption. The method was used to detect TC in mg/L concentrations in water samples. Thus, the multifunctional PCC exhibited potential for use in TC removal and environmental remediation.
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Affiliation(s)
- Pratchayaporn Yukhajon
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Titikan Somboon
- Department of Chemistry, Faculty of Engineering, Rajamangala University of Technology Isan, Khon Kaen Campus, Khon Kaen 40000, Thailand
| | - Sira Sansuk
- Materials Chemistry Research Center, Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand.
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Chen W, Huang J, Shen Y, Zhu K, Lei L, He H, Ai Y. Fe-N co-doped coral-like hollow carbon shell toward boosting peroxymonosulfate activation for efficient degradation of tetracycline: Singlet oxygen-dominated non-radical pathway. J Environ Sci (China) 2023; 126:470-482. [PMID: 36503773 DOI: 10.1016/j.jes.2022.03.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 03/10/2022] [Accepted: 03/10/2022] [Indexed: 06/17/2023]
Abstract
Fe-N co-doped coral-like hollow carbon shell (Fe-N-CS) was synthesized via a simply impregnation-pyrolysis method. The Fe-N-CS showed an excellent ability for activating peroxymonosulfate (PMS), which could degrade about 93.74% tetracycline (20 mg/L) in 12 min. The Fe-N-CS/PMS system exhibited a good anti-interference capacity of various pH, inorganic anions, HA and different water qualities. More importantly, the Fe nanoparticles were anchored uniformly in the carbon layer, effectively limiting the metal leaching. The quenching tests and electron spin resonance (ESR) manifested that non-radical singlet oxygen (1O2) was the main reactive oxygen species (ROS) for TC degradation. The mechanism study showed that Fe nanoparticles, defect and graphite N played a key role in activating PMS to produce ROS. Moreover, three probable degradation pathways were proposed by using LC-MS measurements. Generally, this work had a new insight for the synthesis of heterogeneous Fe-N-C catalysts in the advanced oxidation process based on PMS.
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Affiliation(s)
- Wenjin Chen
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China.
| | - Jin Huang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yaqian Shen
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Ke Zhu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Lele Lei
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Hongmei He
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yushi Ai
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu 611731, China
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11
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Gao F, Zhou JL, Zhang YR, Vadiveloo A, Chen QG, Liu JZ, Yang Q, Ge YM. Efficient coupling of sulfadiazine removal with microalgae lipid production in a membrane photobioreactor. CHEMOSPHERE 2023; 316:137880. [PMID: 36649892 DOI: 10.1016/j.chemosphere.2023.137880] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/10/2023] [Accepted: 01/13/2023] [Indexed: 06/17/2023]
Abstract
This study explored the feasibility of a coupled system for antibiotic removal and biofuel production through microalgae cultivation. Initial, batch culture experiments demonstrated that sulfadiazine (SDZ) had an inhibitory effect on Chlorella sp. G-9, and 100.0 mg L-1 SDZ completely inhibited its growth. In order to improve SDZ removal efficiency by microalgae, three membrane photobioreactors (MPBRs) with different hydraulic retention times (HRTs) were established for continuous microalgae cultivation. The efficient coupling of SDZ removal and microalgal lipid production was achieved through the gradual increment of influent SDZ concentration from 0 to 100.0 mg L-1. The reduction in SDZ ranged between 57.8 and 89.7%, 54.7-91.7%, and 54.6-93.5% for the MPBRs with HRT of 4 d, 2 d, and 1 d, respectively. Chlorella sp. Was found to tolerate higher concentrations of SDZ in the MPBR system, and the resulting stress from high concentrations of SDZ effectively increased the lipid content of microalgae for potential biodiesel production. With the increase of influent SDZ concentration from 0 to 100.0 mg L-1, the lipid content of microalgae increased by 43.5%. Chlorophyll content, superoxide dismutase activity, and malondialdehyde content of microalgae were also evaluated to explore the mechanism of microalgae tolerance to SDZ stress in MPBR.
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Affiliation(s)
- Feng Gao
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316000, China.
| | - Jin-Long Zhou
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316000, China
| | - Yu-Ru Zhang
- Zhejiang Zhouhuan Environmental Engineering Design Co. LTD, Zhoushan, 316000, China
| | - Ashiwin Vadiveloo
- Centre for Sustainable Aquatic Ecosystems, Harry Butler Institute, Murdoch University, Perth, 6150, Australia
| | - Qing-Guo Chen
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316000, China
| | - Jun-Zhi Liu
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316000, China
| | - Qiao Yang
- School of Petrochemical Engineering & Environment, Zhejiang Ocean University, Zhoushan 316000, China
| | - Ya-Ming Ge
- National Engineering Research Center for Marine Aquaculture, Zhoushan, 316000, China.
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12
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Nguyen CH, Tran TTV, Tran ML, Juang RS. Facile synthesis of reusable Ag/TiO2 composites for efficient removal of antibiotic oxytetracycline under UV and solar light irradiation. J Taiwan Inst Chem Eng 2023. [DOI: 10.1016/j.jtice.2023.104825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
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13
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Wang L, Liu Y, Hao J, Ma Z, Lu Y, Zhang M, Hou C. Construction of an S-scheme TiOF 2/HTiOF 3 heterostructures with abundant OVs and OH groups: Performance, kinetics and mechanism insight. J Colloid Interface Sci 2023; 640:15-30. [PMID: 36827845 DOI: 10.1016/j.jcis.2023.02.097] [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: 12/15/2022] [Revised: 02/13/2023] [Accepted: 02/18/2023] [Indexed: 02/23/2023]
Abstract
Developing efficient photocatalysts is of crucial significance for the development of photocatalysis techniques. In this work, an S-scheme alkaline-washed TiOF2/HTiOF3(OHTOF) heterostructures with abundant Oxygen vacancies (Ovs) and OH groups was successfully constructed and used to remedy antibiotic wastewater under simulated sunlight. The generation of HTiOF3 was induced by g-C3N4 regulation. The results displayed that OHTOF15 composite possessed the best photocatalytic performance, which could degrade 94.2% tetracyclinehydrochloride (TCH) at a rate speed constant of 1.077 min-1 in 2.5 h. The after-alkali-washing process increased the concentration of OH groups and Ovs defects, and greatly enlarged the surface area. The abundant Ovs and OH groups were conducive to the formation of free radicals' and the transport of charge carriers. Compared with the pristine TiOF2, the absorption sidebands of OHTOF series were greatly red-shifted, which indicated that the increase of OH groups and the etching of the morphology of OHTOF further enhanced its visible-light harvesting ability. Furthermore, the metal cycle of the variable state of Ti4+/Ti3+ in OHTOF15 compensated for the charge balance and promoted the efficient separation of the carriers. Additionally, the apparent quantum efficiency (AQE) of the TCH photodegradation system based on Chemical Oxygen Demand (COD) removal efficiency was calculated to be 0.32%. It was confirmed that the electron transport path in TiOF2/HTiOF3 nanocomposites system followed the S-scheme type, which increased the charge carriers' separation rate and maintained a strong redox capacity. This work could provide some enlightenment for the construction of the semiconducting heterojunction and controllable surface defects engineering.
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Affiliation(s)
- Liping Wang
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Yi Liu
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Jing Hao
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Zhichao Ma
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Yizhuo Lu
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Mingyuan Zhang
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China
| | - Chentao Hou
- College of Geology and Environment, Xi'an University of Science and Technology, Xi'an 710054, China.
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14
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Magnetically recoverable Cu(1−x)CexO nanoparticles for photodegradation of tetracycline. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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15
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Cui C, Yang M, Zhai J, Bai W, Dai L, Liu L, Jiang S, Wang W, Ren E, Cheng C, Guo R. Bamboo cellulose-derived activated carbon aerogel with controllable mesoporous structure as an effective adsorbent for tetracycline hydrochloride. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:12558-12570. [PMID: 36112282 DOI: 10.1007/s11356-022-22926-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 09/03/2022] [Indexed: 06/15/2023]
Abstract
Activated carbon has been widespread applied in the removal of pollutants in wastewater. However, many biomass-derived activated carbon suffer from the challenge of controllable pore size regulation, hindering their efficient adsorption of pollutants. Herein, bamboo-derived activated carbon aerogel (BACA) has been successfully prepared through KOH high-temperature activation of cellulose aerogel which was prepared using cellulose extracted from bamboo. Bamboo cellulose aerogel provides sufficient reaction sites for KOH, which is conducive to the formation of a mass of mesoporous structures on the pore walls of the activated carbon aerogel. The optimal BACA adsorbent shows high specific surface area (2503.80 m2/g), and maximum adsorption capability for tetracycline hydrochloride (TCH) reaches 863.8 mg/g at 30 ℃. The removal efficiencies of TCH are 100% and 98.4% at 40 ℃ when the initial concentrations are 500 and 700 mg/L, respectively. Adsorption kinetics and isotherm indicate that the adsorption of BACA for TCH is monolayer adsorption based on chemical adsorption. Spontaneous and endothermic adsorption processes are proved by adsorption thermodynamic studies. Additionally, coexisting ions have insignificant effect on TCH adsorption, and the BACA sample displays excellent adsorption property for five reuse cycles with a removal efficiency of 80.95%, indicating the outstanding adsorption capacity of BACA in practical application. The excellent adsorption performance provides BACA with a promising perspective to remove TCH from wastewater, and the prepared method of BACA can be widely extended to other biomass materials.
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Affiliation(s)
- Ce Cui
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
- Yibin Industrial Technology Research Institute of Sichuan University, Yibin, Sichuan, China
| | - Mengyuan Yang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
- Yibin Industrial Technology Research Institute of Sichuan University, Yibin, Sichuan, China
| | - Jianyu Zhai
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
- Yibin Industrial Technology Research Institute of Sichuan University, Yibin, Sichuan, China
| | - Wenhao Bai
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
- Yibin Industrial Technology Research Institute of Sichuan University, Yibin, Sichuan, China
| | - Lanling Dai
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
- Yibin Industrial Technology Research Institute of Sichuan University, Yibin, Sichuan, China
| | - Li Liu
- College of Chemistry, Sichuan University, Chengdu, 610065, China
| | - Shan Jiang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
- Yibin Industrial Technology Research Institute of Sichuan University, Yibin, Sichuan, China
| | - Weijie Wang
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
- Yibin Industrial Technology Research Institute of Sichuan University, Yibin, Sichuan, China
| | - Erhui Ren
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Cheng Cheng
- School of Chemical and Process Engineering, University of Leeds, Leeds, UK
| | - Ronghui Guo
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China.
- Yibin Industrial Technology Research Institute of Sichuan University, Yibin, Sichuan, China.
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16
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Surfactant-assisted flocculation for the efficient removal of aqueous dyestuff: A sustainable approach. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Jahanshahi R, Mohammadi A, Doosti M, Sobhani S, Sansano JM. ZnCo 2O 4/g-C 3N 4/Cu nanocomposite as a new efficient and recyclable heterogeneous photocatalyst with enhanced photocatalytic activity towards the metronidazole degradation under the solar light irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:65043-65060. [PMID: 35484449 DOI: 10.1007/s11356-022-19969-3] [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: 10/28/2021] [Accepted: 03/25/2022] [Indexed: 06/14/2023]
Abstract
In this study, ZnCo2O4/g-C3N4/Cu is synthesized as a new and highly effectual solar light-driven heterogeneous photocatalyst. The prepared photocatalyst is characterized using FT-IR, XRD, XPS, DRS, FESEM, TEM, EDS, and elemental mapping techniques. The performance of ZnCo2O4/g-C3N4/Cu is studied towards the metronidazole (MNZ) degradation under solar light irradiation. The kinetics of MNZ degradation and efficacy of the operational parameters comprising the initial MNZ amount (10-30 mg L-1), photocatalyst dosage (0.005-0.05 g L-1), pH (3-11), and contact time (5-30 min) on the MNZ degradation process are investigated. Surprisingly, the ZnCo2O4/g-C3N4/Cu nanocomposite presents a privileged photocatalytic performance towards the MNZ degradation under solar light irradiation. The enhanced photocatalytic activity of this photocatalyst can be ascribed to the synergistic optical effects of ZnCo2O4, g-C3N4, and Cu. The value of band gap energy for ZnCo2O4/g-C3N4/Cu is estimated to be 2.3 eV based on the Tauc plot of (αhν)2 vs. hν. The radical quenching experiments confirm that the superoxide radicals and holes are the principal active species in the photocatalytic degradation of MNZ, whereas the hydroxyl radicals have no major role in such degradation. The as-prepared photocatalyst is simply isolated and recycled for at least eight runs without noticeable loss of the efficiency. Using the natural sunlight source, applying a very low amount of the photocatalyst, neutrality of the reaction medium, short reaction time, high efficiency of the degradation procedure, utilizing air as the oxidant, low operational costs, and easy to recover and reuse of the photocatalyst are the significant highlights of the present method. It is supposed that the current investigation can be a step forward in the representation of an efficacious photocatalytic system in the treatment of a wide range of contaminated aquatic environments.
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Affiliation(s)
- Roya Jahanshahi
- Department of Chemistry, College of Sciences, University of Birjand, Birjand, Iran
| | - Alieh Mohammadi
- Department of Civil Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran
| | - Mohammadreza Doosti
- Department of Civil Engineering, Faculty of Engineering, University of Birjand, Birjand, Iran
| | - Sara Sobhani
- Department of Chemistry, College of Sciences, University of Birjand, Birjand, Iran.
| | - José Miguel Sansano
- Departamento de Química Orgánica, Facultad de Ciencias, Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Instituto de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080, Alicante, Spain
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18
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Zhang Y, Yu X, Liu Y, Wu S, Yu R, Chen T. Adsorption of chlortetracycline in aquaculture wastewater by lanthanum modified multi-walled carbon nanotubes. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART. B, PESTICIDES, FOOD CONTAMINANTS, AND AGRICULTURAL WASTES 2022; 57:369-378. [PMID: 35502619 DOI: 10.1080/03601234.2022.2061261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The lanthanum modified multi-walled carbon nanotubes (La-CNTs) prepared by an impregnation method were investigated for the adsorption of chlortetracycline (CTC) in aquaculture wastewater. The adsorbents were characterized by SEM, EDS, XRD and BET. The effects of some factors including La-containing impregnant concentration, adsorbent dosage, CTC adsorbate concentration, adsorption time, pH of the adsorbate solution and additional ions on the CTC adsorption by La-CNTs were investigated in detail, and the optimal adsorption conditions were determined. The adsorption kinetics obeyed the quasi-second-order kinetic model. The adsorption isotherms obeyed the Langmuir model and the fitted maximum capacity of La-CNTs for CTC adsorption was 55.3 mg/g.
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Affiliation(s)
- Yuqi Zhang
- College of Ocean Technique and Environmental Engineering, Dalian Ocean University, Dalian, China
- Marine Biological Resources Utilization and Ecological Environmental Protection Technology Research Institute, Liaoning Industrial Technology Research Institute, Liaoning, China
| | - Xiaocai Yu
- College of Ocean Technique and Environmental Engineering, Dalian Ocean University, Dalian, China
- Marine Biological Resources Utilization and Ecological Environmental Protection Technology Research Institute, Liaoning Industrial Technology Research Institute, Liaoning, China
| | - Yifu Liu
- College of Ocean Technique and Environmental Engineering, Dalian Ocean University, Dalian, China
- Marine Biological Resources Utilization and Ecological Environmental Protection Technology Research Institute, Liaoning Industrial Technology Research Institute, Liaoning, China
| | - Shini Wu
- College of Ocean Technique and Environmental Engineering, Dalian Ocean University, Dalian, China
- Marine Biological Resources Utilization and Ecological Environmental Protection Technology Research Institute, Liaoning Industrial Technology Research Institute, Liaoning, China
| | - Runqiang Yu
- School of Chemistry and Chemical Engineering, Liaoning Normal University, Liaoning, China
| | - Tao Chen
- College of Ocean Technique and Environmental Engineering, Dalian Ocean University, Dalian, China
- Marine Biological Resources Utilization and Ecological Environmental Protection Technology Research Institute, Liaoning Industrial Technology Research Institute, Liaoning, China
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19
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Sugarcane Bagasse Ash as a Catalyst Support for Facile and Highly Scalable Preparation of Magnetic Fenton Catalysts for Ultra-Highly Efficient Removal of Tetracycline. Catalysts 2022. [DOI: 10.3390/catal12040446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
Abstract
Sugarcane bagasse ash, which is waste from the combustion process of bagasse for electricity generation, was utilized as received as a catalyst support to prepare the magnetic sugarcane bagasse ash (MBGA) with different iron-to-ash ratios using a simple co-precipitation method, and the effects of NaOH and iron loadings on the physicochemical properties of the catalyst were investigated using various intensive characterization techniques. In addition, the catalyst was used with a low amount of H2O2 for the catalytic degradation of a high concentration of tetracycline (800 mg/L) via a Fenton system. The catalyst exhibited excellent degradation activity of 90.43% removal with good magnetic properties and high stabilities and retained good efficiency after four cycles with NaOH as the eluent. Moreover, the hydroxyl radical on the surface of catalyst played a major role in the degradation of TC, and carbon-silica surface of bagasse ash significantly improved the efficiencies. The results indicated that the MBGA catalyst shows the potential to be highly scalable for a practical application, with high performance in the heterogeneous Fenton system.
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20
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Cárdenas Sierra RS, Zúñiga-Benítez H, Peñuela GA. Photo-assisted removal of doxycycline using H2O2 and simulated sunlight: Operational parameters optimization and ecotoxicity assessment. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2021.113697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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21
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Chen Y, He J, Jiang P, Pang H, Hu X, Zhang J, Zhang W. New insight into degradation of chloramphenicol using a nanoporous Pd/Co 3O 4cathode: characterization and pathways analysis. NANOTECHNOLOGY 2022; 33:210001. [PMID: 35134791 DOI: 10.1088/1361-6528/ac530c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 02/08/2022] [Indexed: 06/14/2023]
Abstract
The growing chloramphenicol (CAP) in wastewater brought a serious threat to the activity of activated sludge and the spread of antibiotics resistance bacteria. In this study, a highly ordered nanoporous Co3O4layer on Co foil through anodization was prepared as cathode for nitro-group reduction and electrodeposited with Pd particles for dechlorination to reduce CAP completely. After 3 h treatment, almost 100% of CAP was reduced. Co2+ions in Co3O4served as catalytic sites for electrons transfer to CAP through a redox circle Co2+-Co3+-Co2+, which triggered nitro-group reduction at first. With the presence of Pd particles, more atomic H* were generated for dechlorination, which increased 22% of reduction efficiency after 3 h treatment. Therefore, a better capacity was achieved by Pd/Co3O4cathode (K = 0.0245 min-1,Kis reaction constant) than by other cathodes such as Fe/Co3O4(K = 0.0182 min-1), Cu/Co3O4(K = 0.0164 min-1), and pure Co3O4(K = 0.0106 min-1). From the proposed reaction pathway, the ultimate product was carbonyl-reduced AM (dechlorinated aromatic amine product of CAP) without antibacterial activity, which demonstrated this cathodic technology was a feasible way for wastewater pre-treatment.
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Affiliation(s)
- Yiwen Chen
- School of Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Junguo He
- School of Civil Engineering, Guangzhou University, Guangzhou 510006, People's Republic of China
| | - Peigen Jiang
- School of Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Heliang Pang
- School of Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Xuhui Hu
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, People's Republic of China
| | - Jie Zhang
- School of Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
| | - Wenjing Zhang
- Department of Environmental Engineering, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
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22
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Yi L, Qin J, Sun H, Ruan Y, Zhao L, Xiong Y, Wang J, Fang D. Improved hydrodynamic cavitation device with expanded orifice plate for effective chlorotetracycline degradation: Optimization of device and operation parameters. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119840] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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23
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He Z, He Y, Chang F, Li Z, Niu J, Li M, Zhang S, Li X, Shi R, Hu G. Efficient pH-universal degradation of antibiotic tetracycline via Co 2P decorated Neosinocalamus affinis biochar. CHEMOSPHERE 2022; 286:131759. [PMID: 34388433 DOI: 10.1016/j.chemosphere.2021.131759] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 07/10/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
Considering the complexity of traditional cobalt phosphide (Co2P) loaded biochar synthesis research on a simple and efficient synthesis method has practical significance. In this study, after phosphoric acid activation, Neosinocalamus affinis biochar (NAB) and nanoplate Co3O4 quickly formed a Co2P-NAB composite material with high Co2P crystallinity and was uniformly dispersed on the surface of NAB in a microwave reactor. Co2P-NAB has an excellent catalytic degradation effect in the activation of peroxymonosulfate (PMS) to degrade tetracycline (TC). The optimal TC degradation efficiency was achieved with the addition of 50 mg L-1 TC concentration, 0.2 g L-1 catalysts, 0.406 mM PMS and pH = 6.02. In addition, according to the pseudo-first-order reaction rate constant calculation, the composite of Co2P-NAB and PMS the synergy efficiency is 81.55 %. Compared with Co2P-NAB (10.83 %) and PMS (7.62 %) alone, the Co2P-NAB/PMS system has a significant promotion effect on the degradation of TC molecules. Additionally, the Co2P-NAB/PMS system had a TC mineralization rate of 68 % in 30 min. Furthermore, after a series of characterization, detection and analysis, and influencing factor experiments, we proposed a potential mechanism for the Co2P-NAB/PMS reaction system to degrade TC and found that singlet oxygen (1O2) plays an essential role in the non-radical degradation process. Finally, according to the liquid chromatography-mass spectrometry (LC-MS) detection of TC degradation intermediates, a possible degradation route was proposed. Therefore, this work uses microwave technology to present a novel and simple synthesis method for transition metal phosphides, which provides potential application value for the treatment of actual wastewater with heterogeneous catalysts.
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Affiliation(s)
- Zhuang He
- Institute for Ecological Research and Pollution Control of Plateau Lakes, Institute of International Rivers and Eco-Security, School of Ecology and Environmental Science, Yunnan University, Kunming, 650504, China; School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Yingnan He
- Institute for Ecological Research and Pollution Control of Plateau Lakes, Institute of International Rivers and Eco-Security, School of Ecology and Environmental Science, Yunnan University, Kunming, 650504, China
| | - Fengqin Chang
- Institute for Ecological Research and Pollution Control of Plateau Lakes, Institute of International Rivers and Eco-Security, School of Ecology and Environmental Science, Yunnan University, Kunming, 650504, China
| | - Zaixing Li
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China.
| | - Jianrui Niu
- School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, 050018, China
| | - Meng Li
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450000, China
| | - Shusheng Zhang
- College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou, 450000, China
| | - Xiaohua Li
- Rural Energy & Environment Agency, Ministry of Agriculture and Rural Affairs, Beijing, 100125, China.
| | - Rongguang Shi
- Agro-environmental Protection Institute Ministry of Agriculture and Rural Affairs, Tianjin, 300191, China
| | - Guangzhi Hu
- Institute for Ecological Research and Pollution Control of Plateau Lakes, Institute of International Rivers and Eco-Security, School of Ecology and Environmental Science, Yunnan University, Kunming, 650504, China.
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24
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Pulsed discharge plasma on water surface coupled with CaFe2O4/Bi2O3 composites for synergistic degradation of aqueous tetracycline hydrochloride. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119691] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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25
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Sultana H, Usman M, Farooqi ZH. Micellar flocculation for the treatment of synthetic dyestuff effluent: Kinetic, thermodynamic and mechanistic insights. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117964] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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26
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Efficient removal of hazardous benzohydroxamic acid (BHA) contaminants from the industrial beneficiation wastewaters by facile precipitation flotation process. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119718] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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27
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Zhao Y, Qiu Y, Mamrol N, Ren L, Li X, Shao J, Yang X, van der Bruggen B. Membrane bioreactors for hospital wastewater treatment: recent advancements in membranes and processes. Front Chem Sci Eng 2021; 16:634-660. [PMID: 34849268 PMCID: PMC8617552 DOI: 10.1007/s11705-021-2107-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/15/2021] [Indexed: 11/26/2022]
Abstract
Discharged hospital wastewater contains various pathogenic microorganisms, antibiotic groups, toxic organic compounds, radioactive elements, and ionic pollutants. These contaminants harm the environment and human health causing the spread of disease. Thus, effective treatment of hospital wastewater is an urgent task for sustainable development. Membranes, with controllable porous and nonporous structures, have been rapidly developed for molecular separations. In particular, membrane bioreactor (MBR) technology demonstrated high removal efficiency toward organic compounds and low waste sludge production. To further enhance the separation efficiency and achieve material recovery from hospital waste streams, novel concepts of MBRs and their applications are rapidly evolved through hybridizing novel membranes (non hydrophilic ultrafiltration/microfiltration) into the MBR units (hybrid MBRs) or the MBR as a pretreatment step and integrating other membrane processes as subsequent secondary purification step (integrated MBR-membrane systems). However, there is a lack of reviews on the latest advancement in MBR technologies for hospital wastewater treatment, and analysis on its major challenges and future trends. This review started with an overview of main pollutants in common hospital waste-water, followed by an understanding on the key performance indicators/criteria in MBR membranes (i.e., solute selectivity) and processes (e.g., fouling). Then, an in-depth analysis was provided into the recent development of hybrid MBR and integrated MBR-membrane system concepts, and applications correlated with wastewater sources, with a particular focus on hospital wastewaters. It is anticipated that this review will shed light on the knowledge gaps in the field, highlighting the potential contribution of hybrid MBRs and integrated MBR-membrane systems toward global epidemic prevention.
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Affiliation(s)
- Yan Zhao
- Department of Chemical Engineering, KU Leuven, B-3001 Leuven, Belgium
| | - Yangbo Qiu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Natalie Mamrol
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - Longfei Ren
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Xin Li
- Department of Chemical Engineering, KU Leuven, B-3001 Leuven, Belgium
| | - Jiahui Shao
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240 China
| | - Xing Yang
- Department of Chemical Engineering, KU Leuven, B-3001 Leuven, Belgium
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Huang X, Zhang X, Huang Y, Xu X. Optimization of media composition for enhancing tetracycline degradation by Trichosporon mycotoxinivorans XPY-10 using response surface methodology. ENVIRONMENTAL TECHNOLOGY 2021; 42:4279-4285. [PMID: 32270748 DOI: 10.1080/09593330.2020.1754472] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 04/05/2020] [Indexed: 06/11/2023]
Abstract
The objective of the study was to improve tetracycline degradation efficiency by Trichosporon mycotoxinivorans XPY-10 using statistical experimental designs. Different culture conditions (FeSO4, pH and glucose) were optimized for tetracycline biodegradation and the mutual interactions between these three variables were analysed using Box-Behnken design (BBD) and response surface methodology (RSM). The results showed that the empirical model was suitable for experimental data, and the maximum tetracycline degradation efficiency by XPY-10 was 95.18% under the optimum conditions of 0.02% of FeSO4, pH 7.83 and 0.28% of glucose, which was further verified by experiments. This study indicated the excellent ability of XPY-10 in degrading tetracycline and theoretical support for the follow-up practice to remediate tetracycline contaminated environment.
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Affiliation(s)
- Xiaochen Huang
- College of Life Sciences, Fujian Normal University, Fuzhou, People's Republic of China
- Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, People's Republic of China
| | - Xinyang Zhang
- College of Life Sciences, Fujian Normal University, Fuzhou, People's Republic of China
| | - Yanyan Huang
- College of Life Sciences, Fujian Normal University, Fuzhou, People's Republic of China
| | - Xuping Xu
- College of Life Sciences, Fujian Normal University, Fuzhou, People's Republic of China
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Cárdenas Sierra RS, Zúñiga-Benítez H, Peñuela GA. Elimination of cephalexin and doxycycline under low frequency ultrasound. ULTRASONICS SONOCHEMISTRY 2021; 79:105777. [PMID: 34649167 PMCID: PMC8517921 DOI: 10.1016/j.ultsonch.2021.105777] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 09/23/2021] [Accepted: 09/30/2021] [Indexed: 06/13/2023]
Abstract
Cephalexin (CPX) and doxycycline (DOX) are two of the most used antibiotics to treat bacterial infections in human medicine, veterinary practices, animal husbandry, agriculture, aquaculture, among others. Nevertheless, due to their excessive consumption and incomplete absorption during their metabolization, they have been detected in different environmental matrices and the effluents of wastewater treatment plants, which reflects that conventional water treatment methods are not enough to eliminate this type of compounds. This paper presents the main results about the removal of the antibiotics CPX and DOX under low frequency (40 kHz) ultrasonic radiation (US). The effects of operational parameters such as the solution initial pH and the applied US power were assessed considering the response surface methodology and a face centered, central composite experimental design. The results indicated that evaluated operational factors significantly affect the pollutants elimination and that US technology is able to remove them completely. In addition, in terms of mineralization, experimental results showed a reduction of the organic carbon present in the solutions and a significant increase of ions (nitrates and sulfates) concentration, suggesting that part of the organic matter was transformed into CO2, H2O and inorganic species. Finally, results regarding the samples toxicity indicated that ultrasonic treatment could promote a significant reduction in this parameter, and the potential negative effect associated to CPX and DOX presence in water bodies.
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Affiliation(s)
- Rafael Santiago Cárdenas Sierra
- Grupo GDCON, Facultad de Ingeniería, Sede de Investigación Universitaria (SIU), Universidad de Antioquia UdeA, Calle 70 # 52-21, Medellín, Colombia
| | - Henry Zúñiga-Benítez
- Grupo GDCON, Facultad de Ingeniería, Sede de Investigación Universitaria (SIU), Universidad de Antioquia UdeA, Calle 70 # 52-21, Medellín, Colombia; Departamento de Ingeniería Química, Facultad de Ingeniería, Universidad de Antioquia UdeA, Calle 70 # 52-21, Medellín, Colombia.
| | - Gustavo A Peñuela
- Grupo GDCON, Facultad de Ingeniería, Sede de Investigación Universitaria (SIU), Universidad de Antioquia UdeA, Calle 70 # 52-21, Medellín, Colombia
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30
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Nasseh N, Khosravi R, Mazari Moghaddam NS, Rezania S. Effect of UV C and UV A Photocatalytic Processes on Tetracycline Removal Using CuS-Coated Magnetic Activated Carbon Nanocomposite: A Comparative Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph182111163. [PMID: 34769682 PMCID: PMC8582642 DOI: 10.3390/ijerph182111163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/17/2021] [Accepted: 10/21/2021] [Indexed: 12/25/2022]
Abstract
In this study, we synthesized a novel MAC nanocomposite using almond’s green hull coated with CuS. The whole set of experiments have been conducted inside a batch (discontinuous reactor system) at room temperature. The effectiveness of different parameters in tetracycline removal pH (3, 5, 7, and 9), pollutant concentration (5–100 mg/L), nanocomposite dosage (0.025–1 g/L), and contact time (5–60 min) using newly synthesized nanocomposite were investigated. Based on the results, in the optimal conditions of pH = 9, nanocomposite dosage of 1 g/L, pollutant concentration of 20 mg/L, contact time of 60 min, and room temperature, 95% removal efficiency was obtained. In MAC/CuS/UVC process, the removal of COD and TOC were 76.89% and 566.84% respectively meanwhile, these values in MAC/CuS/UVA process were 74.19% and 62.11%, respectively. The results of nanocomposite stability and magnetic recovery illustrated that the removal efficiency was reduced by 1.5% in the presence of UVC and 5% in the presence of UVA lights during all six cycles. Therefore, this nanocomposite was highly capable of recycling and reuse. It can be concluded that considering the high potential of the synthesized nanocomposite, the photocatalytic efficiency of the MAC/CuS/UVC process in tetracycline synthesis was higher than MAC/CuS/UVA process.
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Affiliation(s)
- Negin Nasseh
- Social Determinants of Health Research Center, Environmental Health Engineering Department, Faculty of Health, Birjand University of Medical Sciences, Birjand 9717853577, Iran; (N.N.); (R.K.)
| | - Rasoul Khosravi
- Social Determinants of Health Research Center, Environmental Health Engineering Department, Faculty of Health, Birjand University of Medical Sciences, Birjand 9717853577, Iran; (N.N.); (R.K.)
| | - Narjes sadat Mazari Moghaddam
- Student Research Committee, Birjand University of Medical Sciences, Birjand 9717853577, Iran
- Correspondence: (N.s.M.M.); (S.R.)
| | - Shahabaldin Rezania
- Department of Environment and Energy, Sejong University, Seoul 05006, Korea
- Correspondence: (N.s.M.M.); (S.R.)
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31
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Demissie H, Lu S, Jiao R, Liu L, Xiang Y, Ritigala T, Ajibade FO, Mihiranga HKM, An G, Wang D. Advances in micro interfacial phenomena of adsorptive micellar flocculation: Principles and application for water treatment. WATER RESEARCH 2021; 202:117414. [PMID: 34303165 DOI: 10.1016/j.watres.2021.117414] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 06/13/2023]
Abstract
Among various aqua remediation technologies, separation aims at cleaning pollutants by isolating them despite their destruction; solutes can also be recovered after the process. Adsorptive micellar flocculation (AMF) has been known as an important surfactant-based technique to separate poorly water-soluble hazardous pollutants from aqua media as an efficient and energy-intensive replacement for other surfactant-based techniques, as such AMF should be known. AMF is based on the partitioning of solutes gradient from bulk solution into the nanosized smart anionic surfactant micelle followed by flocculation. However, unlike coagulation/flocculation or adsorption, AMF is not viable for the production of drinking water in water utilities due to the loss of surfactant monomers. Unfortunately, it can be used as a reservoir or for the recycling/recovery of organic pollutants (intermediates) (ions, organics/bioactive, dyes, etc.), even at high concentrations. The performance of AMF depends on various parameters, and this review briefly summarizes the existing researches on different pollutants removal by AMF and material recovery/recycling. This includes operating condition factors (surfactants, flocculants, surfactant-flocculant or surfactant-pollutant concentration ratio, and water conditions chemistry). Because varieties of micro interfacial phenomena other than physical interactions occur in a versatile micellar environment in the AMF process, emphases are given to adsorptive oxidation, micellar catalysis, selectivity. Furthermore, for the first time, this review gives an overview of understanding the state-of-the-art multifunctional nano amphiphile-based AMF that behaves mimetic to aquatic organisms in the process of pollutant removal. The efficiency of AMF, including recycling concentrated solution without noticeable deterioration, as an auxiliary resource/income for the next cycle, signifies economic viability, versatility, and manifold applications in aqua remediation. Significance, ways to achieve enhanced process efficiency, as well as challenges and future opportunities in wastewater treatment, are also highlighted.
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Affiliation(s)
- Hailu Demissie
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco- Environmental Science, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Science, Beijing 100049, China; Department of Chemistry, Arba Minch University 1000, Ethiopia
| | - Sen Lu
- School of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen 518055, China
| | - Ruyuan Jiao
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco- Environmental Science, Chinese Academy of Sciences, Beijing 100085, China
| | - Libing Liu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China
| | - Yu Xiang
- University of Chinese Academy of Science, Beijing 100049, China
| | | | | | - H K M Mihiranga
- University of Chinese Academy of Science, Beijing 100049, China
| | - Guangyu An
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco- Environmental Science, Chinese Academy of Sciences, Beijing 100085, China.
| | - Dongsheng Wang
- State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco- Environmental Science, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Science, Beijing 100049, China.
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32
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Xu J, Ren Z, Qiu X, Zhu P, Chen D, Xie L, Zhang C. The Y‐TiO
2
/5A/NiFe
2
O
4
Composite for the High‐efficiency Adsorption and Photocatalytic Degradation of Norfloxacin under Visible Light. ChemistrySelect 2021. [DOI: 10.1002/slct.202101559] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jing Xu
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 P. R. China
| | - Zhihao Ren
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 P. R. China
| | - Xiaoyuan Qiu
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 P. R. China
| | - Pengfei Zhu
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 P. R. China
- Research Institute of industrial hazardous waste disposal and resource utilization Southwest Petroleum University Chengdu Sichuan 610500 P. R. China
| | - Dandan Chen
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 P. R. China
| | - Lisi Xie
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 P. R. China
| | - Chaoli Zhang
- School of Chemistry and Chemical Engineering Southwest Petroleum University Chengdu 610500 P. R. China
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33
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A novel CeO2–TiO2/PANI/NiFe2O4 magnetic photocatalyst: Preparation, characterization and photodegradation of tetracycline hydrochloride under visible light. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2021.122208] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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34
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Controlled Synthesis of CuS and Cu9S5 and Their Application in the Photocatalytic Mineralization of Tetracycline. Catalysts 2021. [DOI: 10.3390/catal11080899] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Pure-phase Cu2−xS (x = 1, 0.2) nanoparticles have been synthesized by the thermal decomposition of copper(II) dithiocarbamate as a single-source precursor in oleylamine as a capping agent. The compositions of the Cu2−xS nanocrystals varied from CuS (covellite) through the mixture of phases (CuS and Cu7.2S4) to Cu9S5 (digenite) by simply varying the temperature of synthesis. The crystallinity and morphology of the copper sulfides were studied using X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM), which showed pure phases at low (120 °C) and high (220 °C) temperatures and a mixture of phases at intermediate temperatures (150 and 180 °C). Covellite was of a spherical morphology, while digenite was rod shaped. The optical properties of these nanocrystals were characterized by UV−vis–NIR and photoluminescence spectroscopies. Both samples had very similar absorption spectra but distinguishable fluorescence properties and exhibited a blue shift in their band gap energies compared to bulk Cu2−xS. The pure phases were used as catalysts for the photocatalytic degradation of tetracycline (TC) under visible-light irradiation. The results demonstrated that the photocatalytic activity of the digenite phase exhibited higher catalytic degradation of 98.5% compared to the covellite phase, which showed 88% degradation within the 120 min reaction time using 80 mg of the catalysts. The higher degradation efficiency achieved with the digenite phase was attributed to its higher absorption of the visible light compared to covellite.
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Santos JPTDS, Tonholo J, de Andrade AR, Del Colle V, Zanta CLDPES. The electro-oxidation of tetracycline hydrochloride in commercial DSA® modified by electrodeposited platinum. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23595-23609. [PMID: 32661961 DOI: 10.1007/s11356-020-09919-2] [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: 03/09/2020] [Accepted: 06/26/2020] [Indexed: 06/11/2023]
Abstract
Tetracycline hydrochloride (TCH) electro-oxidation by commercial DSA® and commercial DSA® modified by platinum electrodeposition was evaluated. The electrodeposition was carried out at constant potential (E = - 0.73 V vs RHE) in different times (1200, 2400, and 4800 s). Scanning electron microscopy (SEM) images show that Pt electrodeposits have elongated shape particle forming a uniform surface, and energy dispersive spectroscopy (EDS) data confirms the presence of Pt on the surface. The electrochemical characterization by cyclic voltammetry showed an increase of the electrochemically active area (EAA) in function of the Pt electrodeposition time. The electro-oxidation of the TCH 0.45 mmol L-1 in H2SO4 0.1 mol L-1 solution was evaluated according to the applied current densities (j = 25, 50, 100 mA cm-2). Both the amount of platinum deposited and j showed a slight improvement in the efficiency of TCH removal, reaching 97.2% of TCH removal to DSA®/Pt4800 and 100 mA cm-2. The TCH mineralization (TOC removal), the percentage of mineralization current efficiency (MCE%), and energy consumption were 15.8%, 0.2649%, and 7.4138 kWh (g TOC)-1, respectively. The DSA®/Pt electrodes showed higher stability to TCH electro-oxidation, indicating to be a promising material for the electro-oxidation of organic pollutants.
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Affiliation(s)
- João Paulo Tenório da Silva Santos
- Chemistry and Biotechnology Institute of Federal University of Alagoas, Av. Lourival Melo Mota, s/n, Campus A.C. Simões, Tabuleiro do Martins, Maceió, AL, 57072-970, Brazil
| | - Josealdo Tonholo
- Chemistry and Biotechnology Institute of Federal University of Alagoas, Av. Lourival Melo Mota, s/n, Campus A.C. Simões, Tabuleiro do Martins, Maceió, AL, 57072-970, Brazil
| | - Adalgisa Rodrigues de Andrade
- Department of Chemistry, Faculty of Philosophy, Sciences and Letters of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040-901, Brazil
| | - Vinicius Del Colle
- Federal University of Alagoas, Av. Manoel Severino Barbosa - Bom Sucesso, Arapiraca, AL, 57309-005, Brazil
| | - Carmem Lucia de Paiva E Silva Zanta
- Chemistry and Biotechnology Institute of Federal University of Alagoas, Av. Lourival Melo Mota, s/n, Campus A.C. Simões, Tabuleiro do Martins, Maceió, AL, 57072-970, Brazil.
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36
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Kodama K, Oiwa M, Saitoh T. Purification of Rhodamine B by Alcohol-Modified Air Bubble Flotation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20200395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Koki Kodama
- Department of Biotechnology and Environmental Chemistry, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
| | - Mako Oiwa
- Department of Biotechnology and Environmental Chemistry, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
| | - Tohru Saitoh
- Department of Biotechnology and Environmental Chemistry, Kitami Institute of Technology, 165 Koen-cho, Kitami, Hokkaido 090-8507, Japan
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37
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Demissie H, An G, Jiao R, Ritigala T, Lu S, Wang D. Modification of high content nanocluster-based coagulation for rapid removal of dye from water and the mechanism. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117845] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Nguyen CH, Tran ML, Van Tran TT, Juang RS. Efficient removal of antibiotic oxytetracycline from water by Fenton-like reactions using reduced graphene oxide-supported bimetallic Pd/nZVI nanocomposites. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.02.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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39
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Berges J, Moles S, Ormad MP, Mosteo R, Gómez J. Antibiotics removal from aquatic environments: adsorption of enrofloxacin, trimethoprim, sulfadiazine, and amoxicillin on vegetal powdered activated carbon. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:8442-8452. [PMID: 33063209 DOI: 10.1007/s11356-020-10972-0] [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: 04/20/2020] [Accepted: 09/21/2020] [Indexed: 06/11/2023]
Abstract
This study addresses the growing concern about the high levels of antibiotics in water, outlining an alternative for their removal. The adsorption of four representative antibiotics from commonly used families (fluoroquinolones, β-lactams, trimethoprim, and sulfonamides) was performed over vegetal powdered activated carbon. The evolution of the adsorption was studied during 60 min for different initial antibiotic concentrations, not only individually but also simultaneously to determine competitive adsorption. Moreover, this research studied the adsorption isotherms and kinetics of the process, as well as the pH influence; FTIR of the activated carbon before and after adsorption was carried out. Trimethoprim and sulfadiazine showed more affinity for the adsorbent than amoxicillin and enrofloxacin. This trend might be attributed to their structure, capable of stablishing stronger π-π interactions with the adsorbent, which showed high affinity for the active sites of the adsorbent via FTIR. In addition, the sorption isotherms of trimethoprim followed a Langmuir type isotherm, amoxicillin followed a Freundlich type isotherm, and enrofloxacin and sulfadiazine followed both. The antibiotics followed pseudo-second-order kinetics. Sulfadiazine and amoxicillin gave better performances in acidic conditions. By contrast, the sorption of trimethoprim was favored in basic environments. Variations of pH had a negligible effect on the removal of enrofloxacin.
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Affiliation(s)
- Javier Berges
- Research Group Agua y Salud Ambiental, University of Zaragoza, Zaragoza, Spain.
| | - Samuel Moles
- Research Group Agua y Salud Ambiental, University of Zaragoza, Zaragoza, Spain
| | - María P Ormad
- Research Group Agua y Salud Ambiental, University of Zaragoza, Zaragoza, Spain
| | - Rosa Mosteo
- Research Group Agua y Salud Ambiental, University of Zaragoza, Zaragoza, Spain
| | - Jairo Gómez
- Navarra de Infraestructuras Locales SA, Pamplona, Spain
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40
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Adsorptive micellar flocculation (surfactant-based phase separation technique): Theory and applications. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.115001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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41
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Sousa É, Rocha L, Jaria G, Gil MV, Otero M, Esteves VI, Calisto V. Optimizing microwave-assisted production of waste-based activated carbons for the removal of antibiotics from water. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 752:141662. [PMID: 32889260 DOI: 10.1016/j.scitotenv.2020.141662] [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: 05/25/2020] [Revised: 07/20/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
This work aimed at the microwave-assisted production of activated carbon (AC) from primary paper mill sludge (PS) for the adsorption of antibiotics from water. Production conditions, namely pyrolysis temperature, pyrolysis time and activating agent (KOH):PS ratio, were optimized as a function of product yield, specific surface area (SBET), total organic carbon (TOC) content and adsorptive removal percentage of two target antibiotics (amoxicillin (AMX) and sulfamethoxazole (SMX)). Under the optimized conditions (pyrolysis at 800 °C during 20 min and a KOH:PS ratio of 1:5), a microporous AC (MW800-20-1:5, with SBET = 1196 m2 g-1, TOC = 56.2% and removal of AMX and SMX = 85% and 72%, respectively) was produced and selected for further kinetic and equilibrium adsorption studies. The obtained results were properly described by the Elovich reaction-based kinetic model and the Langmuir equilibrium isotherm, with maximum adsorption capacities of 204 ± 5 mg g-1 and 217 ± 8 mg g-1 for AMX and SMX, respectively. Considering the satisfactory comparison of these results with the performance of commercial and alternative AC produced by conventional pyrolysis, this work demonstrated the feasibility of the microwave-assisted production of environmentally and energetically sustainable waste-based AC to be applied in the efficient removal of antibiotics from water.
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Affiliation(s)
- Érika Sousa
- Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Luciana Rocha
- Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Guilaine Jaria
- Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Maria V Gil
- Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, 33011 Oviedo, Spain
| | - Marta Otero
- Department of Environment and Planning and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Valdemar I Esteves
- Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal
| | - Vânia Calisto
- Department of Chemistry and CESAM (Centre for Environmental and Marine Studies), University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
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Ali R, Alminderej FM, Messaoudi S, Saleh SM. Ratiometric ultrasensitive optical chemisensor film based antibiotic drug for Al(III) and Cu(II) detection. Talanta 2021; 221:121412. [PMID: 33076057 DOI: 10.1016/j.talanta.2020.121412] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 12/17/2022]
Abstract
Herein, we developed and designed a novel ratiometric optical chemisensor film for determining Al(III) and Cu(II) in low concentration ranges. The chemisensor film consists of (a) antibacterial drug Ciprofloxacin (CPFX) [1-cyclopropyl-6-fluoro1,4-dihydro-4-oxo-7-(piperaziny-l-yl) quinolone-3carboxylic acid] and (b) a reference dye 5,10,15,20- tetrakis (pentafluorophenyl) porphyrin (TFPP) in a polyvinyl chloride (PVC) matrix. PVC was applied as a homogeneous system for mixing CPFX and TFPP. The emission intensity of the CPFX in the PVC matrix varies depending on the concentrations of the Al(III) and Cu(II) ions. When the sensor film is immersed in different Al(III) concentrations, a significant fluorescence enhancement of the CPFX at (427 nm) is observed. Furthermore, the fluorescence intensity of the red emission of the TFPP dye at (644 nm) does not alter. However, in the presence of Cu(II) ions, a considerable emission quenching of the CPFX peak at (427 nm) is observed. PVC provides a great permeability and penetration facilities of dissolved ions that make the sensor film sensitive to Al(III) or Cu(II) changes outside the matrix. The film displays immense sensitivity depending on their distinctive optical characteristics of CPFX and detection capabilities within a low detection limit LOD for Al(III) and Cu(II). The LOD values were estimated to be 2.05 x 10-7 M and 1.04 x 10-7 M respectively with a relative standard deviation RSDr (1%, n=3). Density functional theory (DFT) and the time-dependent DFT (TDDFT) theoretical calculations were performed to study Cu(II) and Al(III) complexation structures and their electronic properties in solution and in the sensor film. The interference of the chemisensor film was examined using different cations and the chemisensor provides significant selectivity. We develop a new ratiometric chemisensor based on PVC polymer film for Al(III) and Cu(II) detection.
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Affiliation(s)
- Reham Ali
- Department of Chemistry, Faculty of Science, Suez University, 43518 Suez, Egypt; Department of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia
| | - Fahad M Alminderej
- Department of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia
| | - Sabri Messaoudi
- Department of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia; Carthage University, Faculty of Sciences of Bizerte, 7021, Jarzouna, Tunisia
| | - Sayed M Saleh
- Department of Chemistry, College of Science, Qassim University, Buraidah, 51452, Saudi Arabia; Chemistry Branch, Department of Science and Mathematics, Faculty of Petroleum and Mining Engineering, Suez University, 43721, Suez, Egypt.
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43
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Asgari E, Sheikhmohammadi A, Yeganeh J. Application of the Fe3O4-chitosan nano-adsorbent for the adsorption of metronidazole from wastewater: Optimization, kinetic, thermodynamic and equilibrium studies. Int J Biol Macromol 2020; 164:694-706. [DOI: 10.1016/j.ijbiomac.2020.07.188] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 07/12/2020] [Accepted: 07/17/2020] [Indexed: 12/31/2022]
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44
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Yi L, Li B, Sun Y, Li S, Qi Q, Qin J, Sun H, Fang D, Wang J. Construction of coated Z-scheme Er3+:Y3Al5O12/Pd-CdS@BaTiO3 sonocatalyst composite for intensifying degradation of chlortetracycline hydrochloride in aqueous solution. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2020.117257] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Hou X, Shi J, Wang N, Wen Z, Sun M, Qu J, Hu Q. Removal of antibiotic tetracycline by metal-organic framework MIL-101(Cr) loaded nano zero-valent iron. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113512] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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46
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Jahanshahi R, Sobhani S, Sansano JM. High Performance Magnetically Separable G‐C
3
N
4
/γ‐Fe
2
O
3
/TiO
2
Nanocomposite with Boosted Photocatalytic Capability towards the Cefixime Trihydrate Degradation under Visible‐Light. ChemistrySelect 2020. [DOI: 10.1002/slct.202002682] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Roya Jahanshahi
- Department of Chemistry College of Sciences University of Birjand Birjand Iran
| | - Sara Sobhani
- Department of Chemistry College of Sciences University of Birjand Birjand Iran
| | - José Miguel Sansano
- Departamento de Química Orgánica Facultad de Ciencias Centro de Innovación en Química Avanzada (ORFEO-CINQA) and Instituto de Síntesis Orgánica (ISO) Universidad de Alicante Apdo. 99 03080- Alicante Spain
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47
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Xiao K, Huang D, Kang C, Sun S. Removal of tetracyclines from aqueous solutions by electrocoagulation/pecan nutshell coupling processes: synergistic effect and mechanism. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2020; 82:683-694. [PMID: 32970621 DOI: 10.2166/wst.2020.367] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The present work compared electrocoagulation (EC)/pecan shell (PS) coupling process with a simple electrocoagulation (EC) process for the removal of tetracyclines (TCs). The results indicated that the addition of appropriate PS could lead to the enhancement of the removal efficiency and decrease of operating time via synergistic influence, including conventional EC process, biomass materials adsorption, charge neutralization and coordination adsorption. The ideal condition for the coupling process was 2.5 mA/cm2 for current density and 3 cm for plate spacing. Based on the optimum condition, when the dosage of PS was 5 g/L, the initial concentration of tetracycline hydrochloride (TC), oxytetracycline hydrochloride (OTC) and chlortetracycline hydrochloride (CTC) was 250 mg/L, the removal rate of PS was 55.90%, 45.10% and 14.98% higher than those of EC process after 40 min treatment. In addition, compared to conventional EC process, the unit energy demand (UED) decreased by 49.62%, 53.2 4% and 26.35% and the unit electrode material demand (UEMD) decreased by 49.80%, 85.65% and 44.37%, respectively, which means more energy conservation and environmental protection.
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Affiliation(s)
- Kunkun Xiao
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130012, China E-mail:
| | - Dongmei Huang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130012, China E-mail:
| | - Chunli Kang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130012, China E-mail:
| | - Siyang Sun
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130012, China E-mail:
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48
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Su Y, Li S, Jiang G, Zheng Z, Wang C, Zhao S, Cui D, Liu Y, Zhang B, Zhang Z. Synergic removal of tetracycline using hydrophilic three-dimensional nitrogen-doped porous carbon embedded with copper oxide nanoparticles by coupling adsorption and photocatalytic oxidation processes. J Colloid Interface Sci 2020; 581:350-361. [PMID: 32771744 DOI: 10.1016/j.jcis.2020.07.071] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 06/23/2020] [Accepted: 07/15/2020] [Indexed: 12/19/2022]
Abstract
Adsorption and photocatalytic oxidation are promising technologies for eliminating antibiotics (e.g. tetracycline) in aquatic environments. However, traditional powdery nanomaterials are limited by drawbacks of difficult separation and lack of synergistic function, which do not conform to the practical demand. Herein, we developed a simple one-step gelation-pyrolysis route to fabricate hydrophilic three-dimensional (3D) porous photocatalytic adsorbent, in which CuO nanoparticles are uniformly and firmly embedded in nitrogen-doped (N-doped) porous carbon frameworks. The obtained N-doped carbon/CuO bulky composites exhibited excellent ability to adsorb tetracycline hydrochloride (TC), which was subsequently photo-oxidized under visible light. Their hydrophilic nature favors the adsorption processes toward TC, with a maximum adsorption capacity reaching 25.03 mg∙g-1. In addition, >94.4% of TC molecules could be photo-degraded in 4 h with good cycling efficiency after three consecutive tests. Finally, a reaction scheme for removal process of TC was proposed. The obtained 3D porous N-doped carbon/CuO nanocomposites show great promise for efficient removal of antibiotics in aqueous solution by synergistically utilizing adsorption and photocatalytic oxidation processes.
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Affiliation(s)
- Yiping Su
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China; Beijing Key Lab of New Energy Materials and Technology, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Shun Li
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China; Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China; Foshan (Southern China) Institute for New Materials, Foshan 528200, Guangdong, China.
| | - Guimin Jiang
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Zuquan Zheng
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Chao Wang
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Shiyin Zhao
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China
| | - Daling Cui
- Foshan (Southern China) Institute for New Materials, Foshan 528200, Guangdong, China
| | - Yong Liu
- Foshan (Southern China) Institute for New Materials, Foshan 528200, Guangdong, China
| | - Boping Zhang
- Beijing Key Lab of New Energy Materials and Technology, School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Zuotai Zhang
- School of Environmental Science and Engineering, Guangdong Provincial Key Laboratory of Soil and Groundwater Pollution Control, Southern University of Science and Technology, Shenzhen 518055, Guangdong, China.
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49
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Nguyen CH, Fu CC, Kao DY, Tran TTV, Juang RS. Adsorption removal of tetracycline from water using poly(vinylidene fluoride)/polyaniline-montmorillonite mixed matrix membranes. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.06.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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50
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Zhang K, Gu S, Wu Y, Fan Q, Zhu C. Preparation of pyramidal SnO/CeO 2 nano-heterojunctions with enhanced photocatalytic activity for degradation of tetracycline. NANOTECHNOLOGY 2020; 31:215702. [PMID: 32032008 DOI: 10.1088/1361-6528/ab73b4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Pyramidal SnO/CeO2 nano-heterojunction photocatalysts were successfully synthesized via a facile hydrothermal method. The structural characterization was investigated by using common characterization tools. The content of SnO affected the morphology and photocatalytic performance of the SnO/CeO2 nano-heterojunctions. With the increase of the SnO content, the morphology of the samples changed from a spherical structure to a pyramidal structure. The photocurrent of the SnO/CeO2 (1:6) sample was about 36 times that of pure CeO2. With SnO/CeO2 (1:6) as the photocatalyst, the degradation rate of tetracycline (TC) was 99% within 140 min under visible light and after five cyclic tests the photocatalytic efficiency of TC remained at 98%, which suggests that the SnO/CeO2 (1:6) nano-heterojunction had a high photocatalytic efficiency and stable photocatalytic performance. These results indicate that SnO/CeO2 (1:6) nano-heterojunction possesses broad prospects for industrial application.
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Affiliation(s)
- Kejie Zhang
- School of Materials Science and Engineering, Nanjing Institute of Technology, No. 1, Hongjing Road, Jiangning District, Nanjing, 211167, People's Republic of China. Jiangsu Key Laboratory of Advanced Structural Materials and Application Technology, No. 1, Hongjing Road, Jiangning District, Nanjing, 211167, People's Republic of China
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