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Wang H, Liu F, Zhang Y, Gong X, Zhu J, Tan W, Yuan Y, Zhang J, Chen H, Xi B. Aerobic Fe transformation induced decrease in the adsorption and enhancement in the reduction of Cr(VI) by humic acid-ferric iron coprecipitates. JOURNAL OF HAZARDOUS MATERIALS 2024; 478:135595. [PMID: 39182292 DOI: 10.1016/j.jhazmat.2024.135595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 08/03/2024] [Accepted: 08/20/2024] [Indexed: 08/27/2024]
Abstract
Humic substance (HS)-ferric iron (Fe(III)) coprecipitates are widespread organo-mineral associations in soils and aquifers and have the capacity to immobilize and detoxify Cr(VI). These coprecipitates undergo transformation owing to their thermodynamic instability; however, the effects of this transformation on their environmental behaviors remain unclear, particularly in aerobic environments. In this study, the aerobic transformation of humic acid (HA)-Fe(III) coprecipitates, a representative of HS-Fe(III) coprecipitates, was simulated. The environmental effect was then evaluated after conducting an adsorption-reduction batch experiment toward Cr(VI). The aerobic transformation characteristics, as well as the adsorption/reduction capacity of HA-Fe(III) coprecipitates, were found to depend strongly on their structures. In ferrihydrite (Fh)-like coprecipitates, amorphous Fh is readily transformed into crystalline hematite and goethite at aerobic environments, leading to a much lower specific surface area and adsorption capacity. However, this increasing degree of crystallization enhanced the inductive reduction ability towards Cr(VI) owing to the more significant shift of electron pairs in the FeOC bond toward the HA direction. In HS-like coprecipitates, Fe(III) always serves as a cation bridge connecting HA molecules, but can be reduced to Fe(II) by the associated HA after aerobic transformation. The produced Fe(II), therefore, drove the reduction of the adsorbed Cr(VI). These findings emphasize the pivotal role of aerobic transformation in enhancing the reduction capacity for Cr(VI), which opens a new avenue for the development of in-situ remediation agents for Cr(VI)-contaminated sites.
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Affiliation(s)
- Hui Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China; Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences, Beijing 100083, PR China
| | - Fengping Liu
- Chinese Academy for Environmental Planning, Beijing 100020, PR China
| | - Yankun Zhang
- Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences, Beijing 100083, PR China; Chinese Academy for Environmental Planning, Beijing 100020, PR China
| | - Xueying Gong
- State Key Laboratory of Environmental Criteria and Risk Assessment, and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China; Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences, Beijing 100083, PR China
| | - Jinqi Zhu
- Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences, Beijing 100083, PR China
| | - Wenbing Tan
- State Key Laboratory of Environmental Criteria and Risk Assessment, and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Ying Yuan
- State Key Laboratory of Environmental Criteria and Risk Assessment, and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Jia Zhang
- Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences, Beijing 100083, PR China.
| | - Honghan Chen
- Beijing Key Laboratory of Water Resources & Environmental Engineering, China University of Geosciences, Beijing 100083, PR China
| | - Beidou Xi
- State Key Laboratory of Environmental Criteria and Risk Assessment, and State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
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Li R, Li H, Zhang C, Guo J, Liu Z, Hou Y, Han Y, Zhang D, Song Y. The corncobs-loaded iron nanoparticles enhanced mechanism of denitrification performance in microalgal-bacterial aggregates system when treating low COD/TN wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 370:122547. [PMID: 39299117 DOI: 10.1016/j.jenvman.2024.122547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 08/24/2024] [Accepted: 09/16/2024] [Indexed: 09/22/2024]
Abstract
To improve denitrification efficiency of microalgal-bacterial aggregates (MABAs) when treating low carbon to nitrogen (C/N) ratio wastewater, CK (the biological control), C1 (untreated corncobs), C2 (alkali-treated corncobs), CFe1 (C1 loaded iron nanoparticles) and CFe2 (C2 loaded iron nanoparticles) five groups of experiments were installed under artificial light (1600 lm). After 36 h of experiment, NO3--N was almost completely converted in CFe1 following by CFe2 when the initial concentration was 60.1 mg/L, whose NO3--N conversion rates were 6.2 and 3.4 times faster than the CK group, respectively. The result showed that the corncobs-loaded iron nanoparticles (CFe1, CFe2) had the potential to promote denitrification process and the CFe1 was more effective. Meanwhile, the CFe1 and CFe2 resulted in a decreased content in extracellular polymeric substances (EPS) secretion because iron nanoparticles (Fes) promoted electron transport and alleviated the nitrate stress. Moreover, the electrochemical analysis of EPS showed that the corncobs and corncobs-loaded iron nanoparticles improved the electron transport rate and redox active substances production. The increase in electron transport activity (ETSA), adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide (NADH) also indicated that the CFe1 and CFe2 promoted microbial metabolic activity and the electron transport rate in MABAs. In addition, the CFe1 group enhanced the enrichment of Proteobacteria, Patescibacteria, Chlorophyta and Ignavibacteriae, which was contributed to the nitrogen removal performance of MABAs. In summary, the enhancement mechanism of corncobs-loaded iron nanoparticles on denitrification process of MABAs was depicted through EPS secretion, electrochemical characteristics, microbial metabolic activity and microbial community. The article provides a viable program for enhancing the denitrification performance of MABAs when treating low C/N wastewater.
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Affiliation(s)
- Renhang Li
- Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China
| | - Haibo Li
- Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China.
| | - Chao Zhang
- Tianjin Academy of Eco-Environmental Sciences, Nankai, Fukang Road 17, Tianjin, 300191, China.
| | - Jianbo Guo
- School of Civil Engineering and Architecture, Taizhou University, Shifu Avenue 1139, Taizhou, 318000, China
| | - Zhihua Liu
- Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China
| | - Yanan Hou
- Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China
| | - Yi Han
- Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China
| | - Daohong Zhang
- Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China
| | - Yuanyuan Song
- Tianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Jinjing Road 26, Tianjin, 300384, China
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Zhang Y, Guo J, Ji Z, Hou J. Synthesis and Photocatalytic Application of Magnetic CoFe 2O 4/Conjugated Poly(vinyl chloride) Derivative Nanocomposite. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:16642-16652. [PMID: 39049623 DOI: 10.1021/acs.langmuir.4c02349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2024]
Abstract
CoFe2O4 has potential for application as a magnetically recoverable visible-light photocatalyst, but its photocatalytic activity is encumbered by the high recombination probability of its photogenerated holes (h+) and electrons (e-). This work was undertaken to boost the photocatalysis of CoFe2O4 through coupling with conjugated poly(vinyl chloride) derivative (CPVC). An easily implementable solvothermal-liquid solid mixing-evaporation of the solvent-pyrolysis method was exploited to synthesize CoFe2O4/CPVC nanocomposites. The photocatalytic capabilities of the products were assessed through photocatalyzing the reduction of Cr(VI) under visible-light (λ > 420 nm). The results demonstrate that the optimal CoFe2O4/CPVC nanocomposite (CoFe2O4/CPVC-2) has markedly heightened photocatalytic activity (3.6 times that of CoFe2O4) and competent reusability and is magnetically recoverable. Furthermore, CoFe2O4/CPVC-2 also shows superior performance toward photocatalytic treatment of the diluted Cr(VI)-containing passivation solution of copper alloys. It is deduced based on the photoelectricity measurement results that the increased photocatalysis of CoFe2O4/CPVC-2 is chiefly attributed to its p-n heterojunction structure, which greatly elevates the h+-e- separation and transfer efficiency. When waste PVC plastic films (replacing the new pure PVC powder) were utilized for the synthesis, the obtained CoFe2O4/CPVC nanocomposite exhibited even better photocatalytic activity (4 times that of CoFe2O4). This work not only has made a new magnetically recoverable, efficient visible-light photocatalyst for decontamination of Cr(VI) in water but also is inspirational for recycling PVC plastic waste to produce high-valued visible-light photocatalysts.
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Affiliation(s)
- Yongcai Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Jiaxin Guo
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Zhengping Ji
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Jianhua Hou
- School of Environmental Science and Engineering, Yangzhou University, Yangzhou 225009, China
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Gomaa AA, Halawy SA, Mohamed MA, Abdelkader A. Facile synthesis of highly basic, nanocrystalline Fe 2O 3-NiO composites as promising and durable catalysts for selective dehydrogenation of 2-butanol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:52105-52117. [PMID: 39138727 DOI: 10.1007/s11356-024-34583-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 07/26/2024] [Indexed: 08/15/2024]
Abstract
Nanocrystalline Fe2O3-NiO composite catalysts were prepared using a sonication-assisted green preparation method. The prepared catalysts were characterized using different techniques, including thermal analyses (TGA/DTA), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, surface area measurements (SBET), and scanning electron microscopy (SEM). The surface basicity of the prepared catalysts was measured using the temperature-programmed desorption of CO2 (CO2-TPD) as a highly acidic probe molecule. The catalytic activity of all the prepared catalysts was tested at a temperature range of 250-325 °C towards the dehydrogenation of 2-butanol to methyl-ethyl ketone (MEK), which is considered a promising fossil fuel alternative and has several industrial applications. The composite catalysts showed better catalytic activity compared to the pure oxides (i.e., Fe2O3 and NiO) due to the strong synergetic effect between the two oxides. Fe2O3 prevented the coke formation over the surface of NiO by the oxygen-scavenging effect of Fe, which promotes the oxidation of the carbonaceous species and increases the catalyst's resistance to deactivation. The effect of weight hourly space velocity (WHSV) on the catalytic activity was tested over a selected catalyst. In addition, the stability and durability of the catalyst were tested across four successive reaction cycles, demonstrating remarkable performance throughout all the reaction cycles.
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Affiliation(s)
- Abouelhassan Ahmed Gomaa
- Nanocomposite Catalysts Lab., Chemistry Department, Faculty of Science at Qena, South Valley University, Qena, 83523, Egypt.
- State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China.
| | - Samih Ahmed Halawy
- Nanocomposite Catalysts Lab., Chemistry Department, Faculty of Science at Qena, South Valley University, Qena, 83523, Egypt
| | - Mohamed Abdelaziz Mohamed
- Nanocomposite Catalysts Lab., Chemistry Department, Faculty of Science at Qena, South Valley University, Qena, 83523, Egypt
| | - Adel Abdelkader
- Nanocomposite Catalysts Lab., Chemistry Department, Faculty of Science at Qena, South Valley University, Qena, 83523, Egypt
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5
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Wang L, Ye R, Jian P, Shi J, Liu J. Hexavalent Chromium Reduction Mediated by Interfacial Electron Transfer over the Co@NC Nanosheet-Assembled Microflowers. Inorg Chem 2024; 63:4214-4223. [PMID: 38436239 DOI: 10.1021/acs.inorgchem.3c04320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2024]
Abstract
The reductive transformation of Cr(VI) into Cr(III) mediated by formic acid with efficient, stable, and cost-effective catalysts is a promising strategy for remediating Cr(VI) contamination. Herein, we report the facile construction of uniform Co@NC nanosheet-assembled microflowers for the reduction of Cr(VI). Both experimental results and density functional theory (DFT) calculations reveal the vital role of the intensive interfacial electronic interaction between Co nanoparticles and the N-doped carbon layer in facilitating the anchoring and dispersion of Co nanoparticles within the carbon framework. The interfacial electron transfer from Co to NC contributes to the interaction with Cr2O72- ions, promoting the subsequent H-transfer reaction. A Langmuir-Hinshelwood kinetic model has been established for the Cr(VI) reduction catalyzed by the CNCF2 (pyrolyzed at 700 °C), which shows a superior reaction performance. This study provides a facile strategy to delicately design well-assembled heterostructures with rich interfaces and strong interfacial interactions for a series of applications in environmental/thermal catalysis.
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Affiliation(s)
- Lixia Wang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
| | - Rongfei Ye
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
| | - Panming Jian
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
| | - Jie Shi
- Qingyuan Innovation Laboratory, Quanzhou 362801, China
| | - Jiangyong Liu
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu, China
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Guo W, Yan L, Chen Y, Ren X, Shen Y, Zhou Y, Qiu M, Hu B. Effective elimination of hexavalent chromium and lead from solution by the modified biochar with MgMn 2O 4 nanoparticles: adsorption performance and mechanism. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:96350-96359. [PMID: 37572256 DOI: 10.1007/s11356-023-29264-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 07/30/2023] [Indexed: 08/14/2023]
Abstract
Heavy metal pollution is one of the environmental problems that need to be solved urgently. The adsorption method is thought as the most effective and economical treatment technology. Nature biochar usually showed unsatisfactory adsorption capacity due to its relatively small adsorption capacity and slow adsorption rate. The metal of Mn has been widely applied in the modification of biochar, which could effectively improve the adsorption capacity of biochar. However, leaching of Mn2+ on the adsorbent materials would appear during the adsorption process. And it would increase the risk of secondary pollution. The multifunctional binary modified biochar could improve the adsorption capacity of environmental pollutant removal. In addition, it could also act as a metal support carrier, reducing the risk of secondary pollution. A novel effective biochar loaded by Mg-Mn binary oxide nanoparticles (MgMn2O4@Biochar) was prepared and applied for the Cr(VI) and Pb(II) removal in aqueous solution. The characteristic of MgMn2O4@Biochar was analyzed by SEM, TEM, FTIR, and XRD. The irregular and somewhat flaky shaped particles of different shape and sizes clustered on the surface of MgMn2O4@Biochar appeared. Abundant functional groups of O-H, -C-OH, C-O, and C-OOH could be observed on the surface of MgMn2O4@Biochar. The elements of Mg and Mn elements besides of C, O, and Si elements were presented on the surface of MgMn2O4@Biochar. The wt% of C, O, Mg, Mn, and Si were 42.82%, 48.99%, 2.83%, 4.44%, and 0.93%, respectively. The operational parameters had an important influence on adsorption capacity of Cr(VI) and Pb(II) removal. The results showed that the adsorption capacity of MgMn2O4@Biochar for Cr(VI) and Pb(II) would reach 33.5 mg/g and 536 mg/g, respectively, within 360 min. Additionally, the adsorption processes of Cr(VI) and Pb(II) in solution could be described with pseudo-second-order. For Cr(VI), the Langmuir model was suitable to the adsorption process. However, the adsorption process of Pb(II) in solution could be described with Freundlich model. Furthermore, it could be concluded that the possible mechanism of Cr(VI) and Pb(II) removal by MgMn2O4@Biochar was physical adsorption, surface complexation reaction, and electrostatic adsorption.
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Affiliation(s)
- Weijuan Guo
- School of Life Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Ling Yan
- School of Life Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
- Bureau of Ecology and Environment of Shaoxing City, Shaoxing, 312000, People's Republic of China
| | - Yujun Chen
- School of Life Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Xinyu Ren
- School of Life Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Yiyang Shen
- School of Life Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Yefeng Zhou
- School of Life Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
| | - Muqing Qiu
- School of Life Science, Shaoxing University, Shaoxing, 312000, People's Republic of China.
| | - Baowei Hu
- School of Life Science, Shaoxing University, Shaoxing, 312000, People's Republic of China
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Kumar S, Pandey J, Tripathi R, Chauhan SR. Photoluminescence Investigations and Band Gap Engineering in Environment Friendly ZnO Nanorods: Enhanced Water Treatment Application and Defect Model. ACS OMEGA 2023; 8:27732-27742. [PMID: 37546600 PMCID: PMC10399167 DOI: 10.1021/acsomega.3c03860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 07/07/2023] [Indexed: 08/08/2023]
Abstract
The inadvertent discharge of industrial effluents, mainly textile, contributes to the complex contamination load in water bodies. Textile dyes are the critical effluents and recalcitrant to traditional remediation procedures. Therefore, energy viable and environment friendly solutions are needed. In this study, we have synthesized zinc oxide nanorods (NRs) at various temperatures using modified thermal decomposition and evaluated its photocatalytic activities. Field effect scanning electron microscopy has confirmed rod-like morphology till TS = 500 °C and spherical morphology from TS = 600 °C onward. Photoluminescence spectra have shown a prominent defect peak in the synthesized ZnO, except for the NRs synthesized at 300 °C. Synthesized ZnO NRs and NPs have been employed to degrade crystal violet (CV) and congo red (CR) dyes. ZnO NRs have shown impressive photocatalytic performance with faster treatment time as compared to the earlier reports. Synthesis parameters are well correlated with the observed high efficiency and the band gap tailoring. Based on our findings, for the first time, we have proposed (i) defect model correlating synthesis parameters with defect states, (ii) systematic correlation of defect states with photocatalytic efficiency, and (iii) ZnO nanorods synthesized at 300 °C via an improved synthesis method as a promising photocatalytic solution to degrade the CV and CR dyes in contaminated water.
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Gnanaguru MVL, Naushad M, Tatarchuk T, Ghangrekar MM, Chowdhury S. One-step calcination synthesis of 2D/2D g-C 3N 4/WS 2 van der Waals heterojunction for visible light-induced photocatalytic degradation of pharmaceutical pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27714-7. [PMID: 37271787 DOI: 10.1007/s11356-023-27714-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 05/13/2023] [Indexed: 06/06/2023]
Abstract
It is well-documented that accumulation of pharmaceutically active compounds (PhACs), such as antibiotics, in aquatic ecosystems is a prominent environmental hazard. Herein, a series of 2D materials-based heterojunctions, conceptualized based on the integration of graphitic carbon nitride (g-C3N4) with tungsten disulfide (WS2), was fabricated through a facile one-step calcination process, and systematically evaluated for eliminating tetracycline (TC) and sulfamethoxazole (SMX) from aqueous matrices. The microstructure, optical properties, and surface chemistry of the as-prepared composites were examined with a range of microscopy and spectroscopy techniques. In comparison with pristine g-C3N4 or bare WS2, the g-C3N4/WS2 material, with optimal WS2 loading, showed significantly improved photocatalytic activity, towards degradation of TC (84%) and SMX (96%), under visible light. Free radical scavenging experiments revealed that superoxide anions and hydroxyl radicals were predominantly responsible for the rapid breakdown of the PhACs. In addition, the dissociation intermediates and residues were identified and the plausible photocatalytic degradation pathways of TC and SMX over the as-constructed 2D/2D heterojunction were discussed. Further, the photocatalysis end products were non-toxic, as inferred via the resazurin cell viability assay, employing Escherichia coli as a model organism. Most importantly, the 2D/2D g-C3N4/WS2 architecture was structurally resilient and exhibited a fairly stable cycling performance for persistent usage in wastewater treatment. The outcomes of this study testify that 2D/2D heterojunction of g-C3N4 fragments and WS2 nanosheets holds great promise for destroying antibiotics or their metabolites, usually present in wastewaters.
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Affiliation(s)
- Mario Vino Lincy Gnanaguru
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Mu Naushad
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Tetiana Tatarchuk
- Faculty of Chemistry, Jagiellonian University, ul. Gronostajowa, 2, 30-387, Kraków, Poland
| | - Makarand M Ghangrekar
- Department of Civil Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India
| | - Shamik Chowdhury
- School of Environmental Science and Engineering, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, 721302, India.
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Qin X, Ji Y, Nong L, Wang C, Li H, Xie C, Ji L, Zhu A. Oxygen vacancy-rich C/Ti3C2/(001)TiO2 hollow microspheres and the photocatalytic degradation of organic pollutants. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.131258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
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10
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Maqbool S, Ahmed A, Mukhtar A, Jamshaid M, Rehman AU, Anjum S. Efficient photocatalytic degradation of Rhodamine B dye using solar light-driven La-Mn co-doped Fe 2O 3 nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:7121-7137. [PMID: 36029444 DOI: 10.1007/s11356-022-22701-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Accepted: 08/20/2022] [Indexed: 06/15/2023]
Abstract
This work aims to develop a highly efficient solar light-induced photocatalyst based on La-Mn co-doped Fe2O3 nanoparticles. Pure Fe2O3 and La-Mn co-doped Fe2O3 nanoparticles were fabricated by a simple co-precipitation method. The photocatalysts were analyzed for their morphological, structural, and magnetic characteristics. Scanning electron microscopy analysis demonstrated the formation of semi-spherical nanoparticles along with small aggregations. The size of nanoparticles was measured using a transmission electron microscope and found in the range of 42-49 nm. The crystalline nature and geometry of synthesized nanoparticles were investigated using X-ray diffraction analysis. Due to the incorporation of La-Mn, the saturation magnetization and remanent magnetization of the nanoparticles decreased from 6.17 to 2.89 emu/g and 1.15 to 0.52 emu/g, respectively, while the coercivity was reduced from 756.72 to 756.67 Oe. The surface area of nanoparticles was increased from 77.93 to 87.45 m2/g as a result of La-Mn co-doping. The photocatalytic performance of the Fe2O3, La0.1Mn0.3Fe1.6O3, and La0.2Mn0.2Fe1.6O3 catalysts was assessed by their capability to degrade Rhodamine B (RhB) under solar light illumination. La0.2Mn0.2Fe1.6O3 displayed exceptional degradation performance, degrading RhB to 91.78% in 240 min, in comparison to La0.1Mn0.3Fe1.6O3 (71.09%) and pristine Fe2O3 (58.21%) under specified reaction conditions ((RhB) = 50 ppm; (catalyst) = 40 mg/L; pH = 7; T = 25 °C)). RhB degradation was affected by changing pH, catalytic dosage, dye concentration, and temperature. The degradation of RhB was found to be pseudo-1st order kinetics. The exceptional photocatalytic performance of La0.2Mn0.2Fe1.6O3 catalysts showed that the synthesized nanoparticles could be effectively utilized to remove organic pollutants from industrial wastewater.
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Affiliation(s)
- Sobia Maqbool
- Department of Chemistry, The Government Sadiq College Women University Bahawalpur, Punjab, 63100, Pakistan
| | - Adeel Ahmed
- College of Materials Science and Engineering, College of Chemistry and Chemical Engineering, Qingdao University, Qingdao, 266071, China
| | - Arif Mukhtar
- Institute of Chemistry, The Islamia University of Bahawalpur, Punjab, 63100, Pakistan
| | - Muhammad Jamshaid
- Institute of Chemistry, The Islamia University of Bahawalpur, Punjab, 63100, Pakistan
| | - Aziz Ur Rehman
- Institute of Chemistry, The Islamia University of Bahawalpur, Punjab, 63100, Pakistan
| | - Saima Anjum
- Department of Chemistry, The Government Sadiq College Women University Bahawalpur, Punjab, 63100, Pakistan.
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Guo J, Shen X, Shao H, Ning L, Shi Y, Han Q, Chen J, Liu Y, Zhai Y. Facile and template-free fabrication of hollow spherical AlOOH and Al2O3 from the waste aluminum residue: Growth mechanism and fast removal of Congo red. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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12
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13
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Swedha M, Okla MK, Al-Amri SS, Alaraidh IA, Al-Ghamdi AA, Mohebaldin A, Abdel-Maksoud MA, Aufy M, Studenik CR, Thomas AM, Raju LL, Khan SS. Green synthesis of two-electron centre based ZnO/NiCo 2S 4 QDs-OVs using Punica granatum fruit peel extract for an exceptional visible light photocatalytic degradation of doxycycline and ciprofloxacin. CHEMOSPHERE 2022; 304:135225. [PMID: 35697102 DOI: 10.1016/j.chemosphere.2022.135225] [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: 04/19/2022] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 06/15/2023]
Abstract
Biosynthesis of nanomaterials using plant extract makes them attractive in the field of photocatalysis as they are environmental friendly. The current study focused on the biosynthesis of ZnO/NiCo2S4 QDs (NCs) using Punica granatum fruit peel extract as the reducing agent. The nanomaterials were characterized with XRD, FTIR, Raman, SEM, TEM, UV-vis DRS, BET, PL, EIS, and ESR analysis and were used for photocatalytic degradation of doxycycline (DOX) and ciprofloxacin (CIP). The bandgap of ZnO is 3.2 eV, and the decoration of NiCo2S4 QDs aids in narrowing the bandgap (2.8 eV), making the NCs visible light active. The fabricated NCs achieved 99 and 89% degradation of DOX and CIP respectively. The photocatalytic efficiency of ZnO/NiCo2S4 QDs was much higher compared to individual ZnO and NiCo2S4 QDs. The half-life period of DOX and CIP were evaluated to be 58 and 152 min respectively. The percentage of TOC removal in the photodegraded product of DOX and CIP was estimated to be 99 and 89% respectively, indicating the mineralization of the compounds. The enhanced photocatalytic efficiency of the NCs was attributed to the narrowed visible light active bandgap, synergistic charge transfer across the interface, and lower charge recombination. The intermediates formed during the photocatalytic degradation of DOX and CIP were analyzed using GC-MS/MS analysis, and the photodegradation pathway was elucidated. Also, the toxicity of the intermediates was computationally analyzed using ECOSAR software. The fabricated ZnO/NiCo2S4 QDs have excellent stability and reusability, confirmed by XRD and XPS analysis. The reusable efficiency of the NCs for the photocatalytic degradation of DOX and CIP were 98.93, and 99.4% respectively. Thus, the biologically fabricated NCs are shown to be an excellent photocatalyst and have wide applications in environmental remediation.
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Affiliation(s)
- M Swedha
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India
| | - Mohammad K Okla
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Saud S Al-Amri
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Ibrahim A Alaraidh
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdullah A Al-Ghamdi
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Asmaa Mohebaldin
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mostafa A Abdel-Maksoud
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Mohammed Aufy
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, Austria
| | - Christian R Studenik
- Department of Pharmaceutical Sciences, Division of Pharmacology and Toxicology, University of Vienna, Austria
| | - Ajith M Thomas
- Department of Botany and Biotechnology, St Xavier's College, Thumba, Thiruvananthapuram, India
| | - Lija L Raju
- Department of Zoology, Mar Ivanios College, Nalanchira, Thiruvananthapuram, India
| | - S Sudheer Khan
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India.
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14
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Li Y, Li Z, Xia Y, Gao L. AgBr/BiOI/g-C 3N 4 Photocatalyst with Enhanced Photocatalytic Activity under Visible-Light Irradiation via the Formation of Double Z-Type Heterojunction with the Synergistic Effect of Metal Ag. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yuzhen Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, 79 Yingze Street, Wanbailin District, Taiyuan 030024, China
| | - Zhen Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, 79 Yingze Street, Wanbailin District, Taiyuan 030024, China
| | - Yunsheng Xia
- Department of Chemistry, Bohai University, Jinzhou 121013, China
| | - Lizhen Gao
- College of Environmental Science and Engineering, Taiyuan University of Technology, 79 Yingze Street, Wanbailin District, Taiyuan 030024, China
- School of Mechanical Engineering, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
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15
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Synthesis of conjugated polyvinyl chloride derivative coupled MnFe2O4 nanoparticles as a magnetic visible-light photocatalyst. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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16
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Zhu J, Zhang Y, Shen L, Li J, Li L, Zhang F, Zhang Y. Hydrothermal synthesis of Nb5+-doped SrTiO3 mesoporous nanospheres with greater photocatalytic efficiency for Cr(VI) reduction. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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17
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Zhu C, Li J, Chai Y, Zhang Y, Li Y, Zhang X, Liu J, Li Y. Synergistic Cr(VI) Reduction and Chloramphenicol Degradation by the Visible-Light-Induced Photocatalysis of CuInS2: Performance and Reaction Mechanism. Front Chem 2022; 10:964008. [PMID: 35910735 PMCID: PMC9328383 DOI: 10.3389/fchem.2022.964008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
Despite significant scientific efforts in the field of water treatment, pollution of drinking water by toxic metal ions and synthetic organic compounds is becoming an increasing problem. The photocatalytic capabilities of CuInS2 nanoparticles were examined in this study for both the degradation of chloramphenicol (CAP) and the reduction of Cr(VI). CuInS2 nanoparticles were produced using a straightforward solvothermal approach and subsequently characterized by many analysis techniques. Simultaneous photocatalytic Cr(VI) reduction and CAP oxidation by the CuInS2 nanoparticles under visible-light demonstrated that lower pH and sufficient dissolved oxygen favored both Cr(VI) reduction and CAP oxidation. On the basis of active species quenching experiments, the possible photocatalytic mechanisms for Cr(VI) conversion with synchronous CAP degradation were proposed. Additionally, the CuInS2 retains a high rate of mixed pollutant removal after five runs. This work shows that organic contaminants and heavy metal ions can be treated concurrently by the visible-light-induced photocatalysis of CuInS2.
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Affiliation(s)
- Chaosheng Zhu
- Zhoukou Key Laboratory of Environmental Pollution Prevention and Remediation, School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou, China
- *Correspondence: Chaosheng Zhu, ; Yongcai Zhang,
| | - Jingyu Li
- Zhoukou Key Laboratory of Environmental Pollution Prevention and Remediation, School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou, China
| | - Yukun Chai
- Zhoukou Key Laboratory of Environmental Pollution Prevention and Remediation, School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou, China
| | - Yongcai Zhang
- School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou, China
- *Correspondence: Chaosheng Zhu, ; Yongcai Zhang,
| | - Yunlin Li
- Zhoukou Key Laboratory of Environmental Pollution Prevention and Remediation, School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou, China
| | - Xiangli Zhang
- College of Chinese Language and Literature, Zhoukou Normal University, Zhoukou, China
| | - Jin Liu
- Henan Key Laboratory of Rare Earth Functional Materials, International Joint Research Laboratory for Biomedical Nanomaterials of Henan, Zhoukou Normal University, Zhoukou, China
| | - Yan Li
- Zhoukou Key Laboratory of Environmental Pollution Prevention and Remediation, School of Chemistry and Chemical Engineering, Zhoukou Normal University, Zhoukou, China
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18
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Wu M, Xu M, Yang J, Wang Y, Lu B, Liu H, Chen R. Iron phosphide for photo-assisted peroxodisulfate activation in metronidazole degradation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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19
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Chuaicham C, Sekar K, Balakumar V, Zhang L, Trakulmututa J, Kidkhunthod P, Smith SM, Sasaki K. Enhanced photocatalytic reduction of hexavalent chromium ions over Zn-bearing in CuZn hydroxy double salts: Insight into the structural investigation using extended X-ray absorption fine structure. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128893] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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20
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Long W, Hamza MU, Abdul-Fattah MN, Rheima AM, Ahmed YM, Fahim FS, Altimari US, Aldulaim AKO, Janani BJ, Fakhri A. Preparation, photocatalytic and antibacterial studies on novel doped ferrite nanoparticles: Characterization and Mechanism evaluation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129468] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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21
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Visible light photocatalytic reduction of Cr(VI) over polyimide in the presence of small molecule carboxylic acids. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128657] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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22
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Wang J, Chen Y. Simple synthesis of conjugated polyvinyl alcohol derivative-modified ZnFe2O4 nanoparticles with higher photocatalytic efficiency. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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23
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Bahadoran A, Baghbadorani NB, De Lile JR, Masudy-Panah S, Sadeghi B, Li J, Ramakrishna S, Liu Q, Janani BJ, Fakhri A. Ag doped Sn 3O 4 nanostructure and immobilized on hyperbranched polypyrrole for visible light sensitized photocatalytic, antibacterial agent and microbial detection process. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2022; 228:112393. [PMID: 35144054 DOI: 10.1016/j.jphotobiol.2022.112393] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Revised: 01/05/2022] [Accepted: 01/14/2022] [Indexed: 12/27/2022]
Abstract
Ag doped Sn3O4 Nanostructure and immobilized on hyperbranched polypyrrole is investigated in this project. The product was synthesized by the hydrothermal synthesis method. The surface and structural characteristics of the product was studied by different instrumental analysis. The fabricated nanocomposites was utilized as a nano photocatalyst in the removal of methylene blue dye. The crystallography results depicts the triclinic phase of Sn3O4 with the crystallite size 36.3 nm. The band gap of the Ag-Sn3O4/hyperbranched polypyrrole was found 1.50 eV from kubelka-munk measurements. The specific surface area was increased in the presence of the hyperbranched polypyrrole as compared to Ag-Sn3O4 samples. The photo-catalytic activity of composites was found 100.0% degradation of CR in 30 min under visible light irradiation. The catalytic kinetic was followed from the first kinetic model. Moreover, the Ag/Sn3O4/hyperbranched polypyrrole was applied as a bactericidal agent against Streptococcus pneumoniae, and Pseudomonas aeruginosa bacteria. Determination of Streptococcus pyogenes as a pathogenic bacteria was investigated by using aptamer/Ag/Sn3O4/hyperbranched polypyrrole in peroxidase activity. The detection limit of S. pyogenes was 71.0 CFU/mL by using the nano-aptamer.
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Affiliation(s)
- Ashkan Bahadoran
- State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai 200240, China
| | | | - Jeffrey Roshan De Lile
- Department of physical engineering, Polytechnique Montreal, Case postal 6079, Station Centre-Ville, Montreal, Quebec H3C 3A7, Canada
| | - Saeid Masudy-Panah
- Low Energy Electronic Systems (LEES), Singapore-MIT Alliance for Research and Technology (SMART) Centre, Singapore
| | - Behzad Sadeghi
- Centre of Excellence for Advanced Materials Application, Slovak Academy of Sciences, Dubravska Cesta 9, 84511 Bratislava, Slovak Republic
| | - Jinghan Li
- State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Seeram Ramakrishna
- Faculty of Mechanical Engineering, National University of Singapore, 117574, Singapore
| | - Qinglei Liu
- State Key Laboratory of Metal Matrix Composite, Shanghai Jiao Tong University, Shanghai 200240, China.
| | | | - Ali Fakhri
- Nanotechnology Laboratory, Nano Smart Science Institute, Tehran, Iran
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