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Ahmed EM, Feteha A, Kamal RS, Behalo MS, Abdel-Raouf ME. Preparation and potential of chitosan-based/Al 2O 3 green hydrogel composites for the removal of methyl red dye from simulated solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:49626-49645. [PMID: 39080170 DOI: 10.1007/s11356-024-34347-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Accepted: 07/07/2024] [Indexed: 08/15/2024]
Abstract
Different dyes are discharged into water streams, causing significant pollution to the entire ecosystem. The present work deals with the removal of acid red 2 dye (methyl red-as an anionic dye) by green sorbents based on chitosan derivatization. In this regard, two classes of chitosan derivatives-a total of six-were prepared by gamma irradiation at 30 kGy. The first group (group A) constitutes a crosslinked chitosan/polyacrylamide/aluminum oxide with different feed ratios, while the second group, identified as group B, is composed of crosslinked carboxymethyl chitosan/polyacrylamide/aluminum oxide with different ratios. Glycerol was added to soften the resultant hydrogels. The products were characterized by different tools, including FTIR for confirming the chemical modification, TGA for investigating their thermal properties, and XRD for verifying their crystalline structure. The morphology of the prepared derivatives was studied through SEM, while their topography before and after dye adsorption was monitored via the AFM. The removal efficiencies of the prepared sorbents were verified at different operation conditions, such as pH, temperature, adsorbent dose, initial concentration of dye solutions, and contact time. The data revealed that the optimum conditions for maximum dye uptake were as follows: pH 4, contact time 120 min, 0.1-g sorbent dose, and 50-ppm dye concentration. Additionally, the prepared sorbents demonstrated potent adsorption capacity and removal efficiency. It was found that the elements of the second group displayed higher performance than their counterparts. The data showed also that the adsorption process best fits with the Freundlich model and obeyed pseudo-first-order kinetic isotherm. In addition, the synthesized composites showed observable antibacterial potency toward E. coli as a Gram-negative bacterium and S. aureus as a Gram-positive bacterium.
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Affiliation(s)
- Ebtehal Mosaad Ahmed
- Organic Chemistry Laboratory, Chemistry Department, Faculty of Science, Benha University, P.O. Box 13518, Benha, Egypt
| | - Amr Feteha
- Organic Chemistry Laboratory, Chemistry Department, Faculty of Science, Benha University, P.O. Box 13518, Benha, Egypt
| | - Rasha S Kamal
- Petroleum Application Department, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt
| | - Mohamed S Behalo
- Organic Chemistry Laboratory, Chemistry Department, Faculty of Science, Benha University, P.O. Box 13518, Benha, Egypt.
| | - Manar E Abdel-Raouf
- Petroleum Application Department, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt
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Gadore V, Mishra SR, Ahmaruzzaman M. Enhancing photodegradation of thiamethoxam insecticide using SnS 2/NCL as a photocatalyst: Mechanistic insights and environmental implications. CHEMOSPHERE 2024; 359:142343. [PMID: 38754491 DOI: 10.1016/j.chemosphere.2024.142343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/18/2024]
Abstract
The current research highlights the fabrication of a novel SnS2/CO32-@Ni-Co LDH (SnS2/NCL) by precipitating Ni-Co LDH over hydrothermally synthesized SnS2 nanoparticles for the enhanced degradation of thiamethoxam (THM) insecticide through the advanced oxidation process. The effect of several reaction parameters was optimized, and a maximum degradation of 98.1 ± 1.2 % with a rate constant of 0.0541 min-1 of 10 ppm THM was reached at a catalyst loading of 0.16 gL-1 using 0.3 mM of H2O2 within 70 min of visible light irradiation. The effect of metal cations, inorganic anions, dissolved organic matter, organic compounds and water samples on the photodegradation performance of SnS2/NCL nanocomposite was also examined to evaluate the prepared photocatalyst's suitability for use in actual wastewater conditions. The metal cations blocked the active sites of the photocatalyst and reduced the degradation efficiency except for Fe2+ ions, since it is a Fenton reagent and increased the production of hydroxyl radicals. Inorganic anions are the scavengers of hydroxyl radicals and hinder photocatalytic activity. Meanwhile, lake water containing varying degrees of co-existing ions shows the lowest degradation efficiency among other water samples. The SnS2/NCL nanocomposite could be reused for five cycles while maintaining a photocatalytic efficiency of 83.6 ± 0.3 % in the fifth run. The prepared SnS2/NCL nanocomposite also showed excellent photodegradation of several other emerging organic pollutants with an efficiency of over 80 % under optimum conditions. Incorporating Ni-Co LDH with SnS2 helped to delocalize photoinduced charges, leading to increased photocatalytic activity and a slower electron-hole recombination rate. The present research highlights the photocatalytic activity of SnS2/NCL photocatalysts for the photocatalytic degradation of emerging contaminants from wastewater.
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Affiliation(s)
- Vishal Gadore
- Department of Chemistry, National Institute of Technology Silchar, 788010, Assam, India
| | - Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology Silchar, 788010, Assam, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology Silchar, 788010, Assam, India.
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Geremew A, Palmer L, Johnson A, Reeves S, Brooks N, Carson L. Multi-functional copper oxide nanoparticles synthesized using Lagerstroemia indica leaf extracts and their applications. Heliyon 2024; 10:e30178. [PMID: 38726176 PMCID: PMC11078880 DOI: 10.1016/j.heliyon.2024.e30178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 04/19/2024] [Accepted: 04/22/2024] [Indexed: 05/12/2024] Open
Abstract
Developing multifunctional nanomaterials through environmentally friendly and efficient approaches is a pivotal focus in nanotechnology. This study aimed to employ a biogenic method to synthesize multifunctional copper oxide nanoparticles (LI-CuO NPs) with diverse capabilities, including antibacterial, antioxidant, and seed priming properties, as well as photocatalytic organic dye degradation and wastewater treatment potentials using Lagerstroemia indica leaf extract. The synthesized LI-CuO NPs were extensively characterized using UV-vis spectroscopy, dynamic light scattering (DLS), X-ray diffraction (XRD), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and Fourier transform-infrared spectroscopy (FT-IR). The colloid displayed surface plasmon resonance peaks at 320 nm, characteristic of LI-CuO NPs. DLS analysis revealed an average particle size of 93.5 nm and a negative zeta potential of -20.3 mV. FTIR and XPS analyses demonstrated that LI-CuO NPs possessed abundant functional groups that acted as stabilizing agents. XRD analysis indicated pure crystalline and spherical LI-CuO NPs measuring 36 nm in size. Antibacterial tests exhibited significant differential activity of LI-CuO NPs against both gram-negative (Escherichia coli, Salmonella typhimurium) and gram-positive (Staphylococcus aureus and Listeria monocytogenes) bacteria. In antioxidant tests, the LI-CuO NPs demonstrated a remarkable radical scavenging activity of 97.6 % at a concentration of 400 μg mL-1. These nanoparticles were also found to enhance mustard seed germination at low concentrations. With a remarkable reusability, LI-CuO NPs exhibited excellent photocatalytic performance, with a degradation efficiency of 97.6 % at 150 μg/mL as well as a 95.6 % reduction in turbidity when applied to wastewater treatment. In conclusion, this study presents environmentally friendly method for the facile synthesis of LI-CuO NPs that could potentially offer promising applications in biomedicine, agriculture, and environmental remediation due to their multifunctional properties.
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Affiliation(s)
- Addisie Geremew
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX, 77446, USA
| | - Lenaye Palmer
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX, 77446, USA
| | - Andre Johnson
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX, 77446, USA
| | - Sheena Reeves
- Department of Chemical Engineering, College of Engineering, Prairie View A&M University, Prairie View, TX, 77446, USA
| | - Nigel Brooks
- Department of Chemical Engineering, College of Engineering, Prairie View A&M University, Prairie View, TX, 77446, USA
| | - Laura Carson
- Cooperative Agricultural Research Center, Prairie View A&M University, Prairie View, TX, 77446, USA
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Khandelwal M, Choudhary S, Harish, Kumawat A, Misra KP, Vyas Y, Singh B, Rathore DS, Soni K, Bagaria A, Khangarot RK. An Eco-Friendly Synthesis Approach for Enhanced Photocatalytic and Antibacterial Properties of Copper Oxide Nanoparticles Using Coelastrella terrestris Algal Extract. Int J Nanomedicine 2024; 19:4137-4162. [PMID: 38756417 PMCID: PMC11096669 DOI: 10.2147/ijn.s452889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Accepted: 04/26/2024] [Indexed: 05/18/2024] Open
Abstract
Background In the current scenario, the synthesis of nanoparticles (NPs) using environmentally benign methods has gained significant attention due to their facile processes, cost-effectiveness, and eco-friendly nature. Methods In the present study, copper oxide nanoparticles (CuO NPs) were synthesized using aqueous extract of Coelastrella terrestris algae as a reducing, stabilizing, and capping agent. The synthesized CuO NPs were characterized by X-ray diffraction (XRD), UV-visible spectroscopy (UV-Vis), Fourier transform infrared spectroscopy (FTIR), dynamic light scattering (DLS), and field emission scanning electron microscopy (FE-SEM) coupled with energy-dispersive X-ray spectroscopy (EDS). Results XRD investigation revealed that the biosynthesized CuO NPs were nanocrystalline with high-phase purity and size in the range of 4.26 nm to 28.51 nm. FTIR spectra confirmed the existence of secondary metabolites on the surface of the synthesized CuO NPs, with characteristic Cu-O vibrations being identified around 600 cm-1, 496 cm-1, and 440 cm-1. The FE-SEM images predicted that the enhancement of the algal extract amount converted the flattened rice-like structures of CuO NPs into flower petal-like structures. Furthermore, the degradation ability of biosynthesized CuO NPs was investigated against Amido black 10B (AB10B) dye. The results displayed that the optimal degradation efficacy of AB10B dye was 94.19%, obtained at 6 pH, 50 ppm concentration of dye, and 0.05 g dosage of CuO NPs in 90 min with a pseudo-first-order rate constant of 0.0296 min-1. The CuO-1 NPs synthesized through algae exhibited notable antibacterial efficacy against S. aureus with a zone of inhibition (ZOI) of 22 mm and against P. aeruginosa with a ZOI of 17 mm. Conclusion Based on the findings of this study, it can be concluded that utilizing Coelastrella terrestris algae for the synthesis of CuO NPs presents a promising solution for addressing environmental contamination.
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Affiliation(s)
- Manisha Khandelwal
- Department of Chemistry, University College of Science, Mohanlal Sukhadia University, Udaipur, Rajasthan, 313001, India
| | - Sunita Choudhary
- Department of Botany, University College of Science, Mohanlal Sukhadia University, Udaipur, Rajasthan, 313001, India
| | - Harish
- Department of Botany, University College of Science, Mohanlal Sukhadia University, Udaipur, Rajasthan, 313001, India
| | - Ashok Kumawat
- Department of Physics, School of Basic Sciences, Manipal University Jaipur, Jaipur, Rajasthan, 303007, India
| | - Kamakhya Prakash Misra
- Department of Physics, School of Basic Sciences, Manipal University Jaipur, Jaipur, Rajasthan, 303007, India
| | - Yogeshwari Vyas
- Department of Chemistry, University College of Science, Mohanlal Sukhadia University, Udaipur, Rajasthan, 313001, India
| | - Bhavya Singh
- Department of Environmental Sciences, Mohanlal Sukhadia University, Udaipur, Rajasthan, 313001, India
| | - Devendra Singh Rathore
- Department of Environmental Sciences, Mohanlal Sukhadia University, Udaipur, Rajasthan, 313001, India
| | - Kanchan Soni
- Department of Physics, School of Basic Sciences, Manipal University Jaipur, Jaipur, Rajasthan, 303007, India
| | - Ashima Bagaria
- Department of Physics, School of Basic Sciences, Manipal University Jaipur, Jaipur, Rajasthan, 303007, India
| | - Rama Kanwar Khangarot
- Department of Chemistry, University College of Science, Mohanlal Sukhadia University, Udaipur, Rajasthan, 313001, India
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Dastider A, Saha H, Anik MJF, Jamal M, Billah MM. Second phase Cu 2O boosted photocatalytic activity of fluorine doped CuO nanoparticles. RSC Adv 2024; 14:11677-11693. [PMID: 38605896 PMCID: PMC11007595 DOI: 10.1039/d3ra08790e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/30/2024] [Indexed: 04/13/2024] Open
Abstract
The photocatalytic activity of fluorine (F) doped CuO nanoparticles (NPs) prepared employing modified sol-gel process was investigated here in this study. Structural and elemental characterization using XRD and XPS data confirmed successful incorporation of F as dopant. F doping led to lattice distortion and reduced crystallinity with smaller crystallite size while promoting the emergence of Cu2O as the second phase. Morphological analysis showed irregularly shaped, fused particles with a decreasing particle size trend upon doping. Addition of hydrogen peroxide generated hydroxyl radicals (OH˙) under ultra-violet (UV) light, which effectively degrades pollutants by facilitating the photocatalytic kinetics. Photocatalytic activity of all the nanoparticles was examined against Rhodamine B (Rh B) dye and most efficient degradation (97.78%) was observed for 3 mol% F dopant concentration. The emergence of Cu2O phase for doping beyond 1 mol% F doped CuO might be the prime reason to enhance its degradation performance. Conversely, 5 mol% doping caused notable phase changes and decreased degradation rate (88.05%) due to increased recombination rate in presence of metallic copper. The ability of F doped CuO nanoparticles to disintegrate organic contaminants by producing reactive oxygen species when exposed to UV light suggests their potential effectiveness in applications such as dye degradation, water purification, and environmental sustainability.
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Affiliation(s)
- Ankita Dastider
- Department of Materials and Metallurgical Engineering (MME), Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | - Hridoy Saha
- Department of Materials and Metallurgical Engineering (MME), Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | - Md Jannatul Ferdous Anik
- Department of Materials and Metallurgical Engineering (MME), Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
| | - Moniruzzaman Jamal
- Department of Materials and Metallurgical Engineering (MME), Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
- Department of Materials Science and Engineering, University of California Berkeley CA 94720 USA
| | - Md Muktadir Billah
- Department of Materials and Metallurgical Engineering (MME), Bangladesh University of Engineering and Technology (BUET) Dhaka-1000 Bangladesh
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Zhou J, Zhang Y, Ding J, Fang J, Yang J, Xie Y, Xu X. A More Efficient Method for Preparing a MIP-CQDs/ZnO 1-x Photodegradant with Highly Selective Adsorption and Photocatalytic Properties. ACS APPLIED MATERIALS & INTERFACES 2024; 16:2365-2377. [PMID: 38169325 DOI: 10.1021/acsami.3c16135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
The application of semiconductor photocatalysts in wastewater treatment always has a drawback, which is the lack of selectivity for pollutants, but molecular imprinting technology (MIT) is a remarkable method for preparing highly selective adsorbents for low concentration target pollutants. Up to now, the research of molecular imprinting materials has mainly focused on organic polymers, and there has been little research on inorganic molecular imprinting materials. In the present work, we introduced carbon quantum dots (CQDs) into the flower-like hierarchical ZnO to prepare photocatalysts CQDs/ZnO. Further, with ciprofloxacin (CIP) as the template molecule, a molecular imprinting material MIP-CQDs/ZnO1-x was prepared by introducing both oxygen vacancies and imprinted cavities into CQDs/ZnO by the hydrothermal calcination method. It can not only increase the concentration of oxygen vacancies and broaden the light absorption range of zinc oxide without changing the crystal form of ZnO but also make it have the characteristics of preferential adsorption and degradation of CIP during the degradation process. Under the synergistic effect of CQDs, oxygen vacancies, and molecularly imprinted cavities, the molecularly imprinted material exhibits excellent photocatalytic and selective adsorption performance.
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Affiliation(s)
- Juan Zhou
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan 610031, P R China
| | - Yang Zhang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan 610031, P R China
| | - Jie Ding
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P R China
| | - Jiajun Fang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan 610031, P R China
| | - Jinming Yang
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, Sichuan 610031, P R China
| | - Yushi Xie
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan 610031, P R China
| | - Xiaoling Xu
- Key Laboratory of Advanced Technologies of Materials, Ministry of Education, School of Chemistry, Southwest Jiaotong University, Chengdu, Sichuan 610031, P R China
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Gadore V, Mishra SR, Ahmaruzzaman M. Bandgap engineering approach for synthesising photoactive novel Ag/HAp/SnS 2 for removing toxic anti-fungal pharmaceutical from aqueous environment. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132458. [PMID: 37717444 DOI: 10.1016/j.jhazmat.2023.132458] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 08/13/2023] [Accepted: 08/30/2023] [Indexed: 09/19/2023]
Abstract
The present work shed light on synthesising a novel ternary Z-scheme Ag/HAp/SnS2 (AHS) nano photocatalyst to degrade metronidazole (MTZ) in wastewater through H2O2-assisted AOP under natural sunlight. HAp extracted from the fish scales of rohu fish through alkaline treatment was decorated with Ag nanoparticles using ascorbic acid as a bio-reductant. Tin disulphide (SnS2) was anchored over Ag/HAp to prevent agglomeration and enhance photocatalytic activity by delaying the electron-hole recombination rate. After 45 min of irradiation, a degradation efficiency of 98.85 ± 1.86% for 15 ppm MTZ could be achieved. The performance of the prepared photocatalyst in real wastewater was investigated by introducing several metal cations and anions in the photodegradation process. The degradation products were identified by HRLCMS analysis, and the breakdown mechanism of MTZ was proposed. The present study enlightens the importance of SnS2-based photocatalysts for organic pollutant degradation under natural sunlight through an advanced oxidation process. The characterization results showed that the enhanced photodegradation efficiency of AHS is attributed to the formation of an all-solid-state Z-scheme heterojunction with Ag nanoparticles acting as charge transfer medium and as electron accumulators helping in delaying charge recombination.
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Affiliation(s)
- Vishal Gadore
- Department of Chemistry, National Institute of Technology, Silchar 788010, Assam, India
| | - Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology, Silchar 788010, Assam, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology, Silchar 788010, Assam, India.
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8
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Kim JS, Kumar N, Jung U, Park J, Naushad M. Enhanced photocatalytic activity of cubic ZnSn(OH) 6 by in-situ partial phase transformation via rapid thermal annealing. CHEMOSPHERE 2023; 331:138780. [PMID: 37142101 DOI: 10.1016/j.chemosphere.2023.138780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 04/23/2023] [Accepted: 04/23/2023] [Indexed: 05/06/2023]
Abstract
In this study, a mixed phase ZnSn(OH)6/ZnSnO3 photocatalyst was synthesized by calcining ZHS nanostructures via rapid thermal annealing (RTA) process. The composition ratio of ZnSn(OH)6/ZnSnO3 was controlled by changing the duration of the RTA process. The obtained mixed-phase photocatalyst was characterized by X-ray diffraction, field emission scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, UV-vis diffuse reflectance spectroscopy, ultraviolet photoelectron spectroscopy, photoluminescence, and physisorption analysis. Results showed that ZnSn(OH)6/ZnSnO3 photocatalyst obtained by calcining ZHS at 300 °C for 20 s displayed the best photocatalytic performance under UVC light illumination. Under optimized reaction conditions, ZHS-20 (0.125 g) demonstrated nearly complete removal (>99%) of MO dye in 150 min. Scavenger study revealed the predominant role of OH• in photocatalysis. The enhanced photocatalytic activity of the ZnSn(OH)6/ZnSnO3 composites was mainly ascribed to the photosensitization of ZHS by ZTO and effective electron-hole separation at the ZnSn(OH)6/ZnSnO3 heterojunction interface. It is expected that this study will provide new research input for the development of photocatalyst through thermal annealing-induced partial phase transformation.
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Affiliation(s)
- J S Kim
- Department of Electronics and Computer Engineering, Hanyang University, Seoul, 04763, South Korea
| | - N Kumar
- Department of Electronic Engineering, Hanyang University, Seoul, 04763, South Korea.
| | - U Jung
- Department of Electronic Engineering, Hanyang University, Seoul, 04763, South Korea.
| | - J Park
- Department of Electronics and Computer Engineering, Hanyang University, Seoul, 04763, South Korea; Department of Electronic Engineering, Hanyang University, Seoul, 04763, South Korea.
| | - Mu Naushad
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
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Asif N, Ahmad R, Fatima S, Shehzadi S, Siddiqui T, Zaki A, Fatma T. Toxicological assessment of Phormidium sp. derived copper oxide nanoparticles for its biomedical and environmental applications. Sci Rep 2023; 13:6246. [PMID: 37069201 PMCID: PMC10110551 DOI: 10.1038/s41598-023-33360-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Accepted: 04/12/2023] [Indexed: 04/19/2023] Open
Abstract
Driven by the need to biosynthesized alternate biomedical agents to prevent and treat infection, copper oxide nanoparticles (CuONPs) have surfaced as a promising avenue. Cyanobacteria-derived synthesis of CuONPs is of substantive interest as it offers an eco-friendly, cost-effective, and biocompatible route. In the present study biosynthesized CuONPs were characterized and investigated regarding their toxicity. Morphological analysis using TEM, SEM and AFM showed the spherical particle size of 20.7 nm with 96% copper that confirmed the purity of CuONPs. Biogenic CuONPs with IC50 value of 64.6 µg ml-1 showed 90% scavenging of free radicals in superoxide radical scavenging assay. CuONPs showed enhanced anti-inflammatory activity by 86% of protein denaturation with IC50 value of 89.9 µg ml-1. Biogenic CuONPs exhibited significant toxicity against bacterial strains with lowest MIC value of 62.5 µg ml-1 for B. cereus and fungal strain with a MIC value of 125 µg ml-1 for C. albicans. In addition CuONPs demonstrated a high degree of synergistic interaction when combined with standard drugs. CuONPs exhibited significant cytotoxicity against non-small cell lung cancer with an IC50 value of 100.8 µg ml-1 for A549 and 88.3 µg ml-1 for the H1299 cell line with apoptotic activities. Furthermore, biogenic CuONPs was evaluated for their photocatalytic degradation potential against methylene blue dye and were able to removed 94% dye in 90 min. Free radical scavenging analysis suggested that CuONPs assisted dye degradation was mainly induced by hydroxide radicals. Biogenic CuONPs appears as an eco-friendly and cost effective photocatalyst for the treatment of wastewater contaminated with synthetic dyes that poses threat to aquatic biota and human health. The present study highlighted the blend of biomedical and photocatalytic potential of Phormidium derived CuONPs as an attractive approach for future applications in nanomedicine and bioremediation.
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Affiliation(s)
- Nida Asif
- Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Rakhshan Ahmad
- Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Samreen Fatima
- Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Shehzadi Shehzadi
- Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Tabassum Siddiqui
- Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India
| | - Almaz Zaki
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, 110025, India
| | - Tasneem Fatma
- Department of Biosciences, Jamia Millia Islamia, Jamia Nagar, New Delhi, 110025, India.
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Kumar N, Jung U, Jung B, Park J, Naushad M. Zinc hydroxystannate/zinc-tin oxide heterojunctions for the UVC-assisted photocatalytic degradation of methyl orange and tetracycline. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 316:120353. [PMID: 36240965 DOI: 10.1016/j.envpol.2022.120353] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 09/23/2022] [Accepted: 10/01/2022] [Indexed: 06/16/2023]
Abstract
Partial phase modification of zinc hydroxystannate (ZHS) is an effective technique for improving its light absorption capacity. In this study, a zinc hydroxystannate/zinc-tin oxide (ZHS/ZTO) heterostructure was synthesized via chemical co-precipitation followed by annealing. The as-prepared heterostructure revealed cubic crystal morphology along with high-intensity diffraction peaks in the XRD pattern. The XPS analysis of ZHS/ZTO heterostructures demonstrated the presence of key elements (Zn, Sn, and O) in their most stable ionic forms. The photocatalytic degradation efficiencies of the prepared samples were tested against methyl orange (MO) and tetracycline (TC) in an aqueous medium under UVC (254 nm) radiation. Under optimized conditions, maximum degradation efficiencies of 99% for MO and 97% for TC were observed in 120 and 180 min, respectively. Further, the predominant role of OH˙ radicals in the photocatalytic removal of MO and TC was evident through scavenging experiments. 2nd order kinetic model was outperformed in simulating the degradation mechanism of both targets over 1st and zero-order kinetic models. Finally, a photocatalytic degradation mechanism is proposed based on the energy values estimated for the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) using UPS analysis.
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Affiliation(s)
- Navneet Kumar
- Department of Electronic Engineering, Hanyang University, Seoul, 04763, South Korea.
| | - Uijin Jung
- Department of Electronic Engineering, Hanyang University, Seoul, 04763, South Korea.
| | - Bomseumin Jung
- Department of Electronic Engineering, Hanyang University, Seoul, 04763, South Korea.
| | - Jinsub Park
- Department of Electronic Engineering, Hanyang University, Seoul, 04763, South Korea; Division of Nanoscale Semiconductor Engineering, Hanyang University, Seoul, 04763, Republic of Korea.
| | - Mu Naushad
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.
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Sharma S, Basu S. Visible-light-induced photocatalytic response of easily recoverable Mn 2O 3/SiO 2 monolith in centimeter-scale towards degradation of ofloxacin: Performance evaluation and product analysis. CHEMOSPHERE 2022; 307:135973. [PMID: 35952781 DOI: 10.1016/j.chemosphere.2022.135973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Monolithic-photocatalysts being easily recoverable are a suitable alternative to powdered materials for pollutant treatment. This study was conducted to prepare Mn2O3/SiO2 monoliths by wet-impregnating Mn(NO3)2․4H2O in SiO2 monoliths. The crystallinity of oxide was affirmed via XRD analyses, whereas EDS and elemental-mapping, and XPS studies revealed the constituent elements and their oxidation states. FESEM images confirmed porous morphology, while BET-analysis confirmed its mesoporous nature (∼8.44 nm) and enormous surface area (∼241 m2/g). The DRS and PL studies disclosed that Mn2O3/SiO2 monoliths consisted of narrow band-gap of ∼2.14 eV and had suitable electron/hole separation. The photocatalytic effectiveness of the monolith had been checked by degrading model dye methylene blue (MB) and antibiotic ofloxacin (OF). The influence of various reaction parameters for degradation, i.e., monolith dose, solution-pH, illumination-area, scavengers, etc., was noted. At optimal reaction conditions, outstanding competence was achieved for MB (95.23%; 0.0225 min-1) and decent results were obtained for OF-degradation (73.2%; 0.0096 min-1). The recyclable nature of the catalyst (∼12.7%-reduction in effectiveness after 10 successive cycles) was vindicated by several characterization studies after reusability. The O2•-radicals participated majorly in the degradation reaction. The reaction intermediates plus products, generated after the degradation of had been identified via LC/MS study. The mineralization extent of the OF and MB was also gauged through TOC analyses. The photocatalytic treatment of raw textile wastewater manifested ∼57.8% COD and 53% TOC-removal. This study emphasizes the competence of Mn2O3/SiO2 monoliths for the photocatalytic abatement of refractory organic contaminants.
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Affiliation(s)
- Surbhi Sharma
- School of Chemistry and Biochemistry, Affiliate Faculty-TIET-Virginia Tech Center of Excellence in Emerging Materials, Thapar Institute of Engineering & Technology, Patiala, 147004, India
| | - Soumen Basu
- School of Chemistry and Biochemistry, Affiliate Faculty-TIET-Virginia Tech Center of Excellence in Emerging Materials, Thapar Institute of Engineering & Technology, Patiala, 147004, India.
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Shimokawa K, Matsubara S, Okamoto A, Ichitsubo T. Light-induced Li extraction from LiMn 2O 4/TiO 2 in a water-in-salt electrolyte for photo-rechargeable batteries. Chem Commun (Camb) 2022; 58:9634-9637. [PMID: 35938452 DOI: 10.1039/d2cc03362c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photocharging of high-potential spinel LiMn2O4 is demonstrated by using a water-in-salt electrolyte and TiO2 nanoparticles. In a developed half-cell system with an electron acceptor, Li extraction from LiMn2O4 proceeds under the illumination of UV-visible light at an estimated rate of ∼23 mA g-1. This work paves the way for high-potential cathode materials in photo-rechargeable batteries.
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Affiliation(s)
- Kohei Shimokawa
- Frontier Research Institute for Interdisciplinary Sciences, Tohoku University, 6-3 Aramaki Aza Aoba, Aoba-ku, Sendai 980-8578, Japan. .,Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan.
| | - Shogo Matsubara
- Department of Life Science and Applied Chemistry, Graduate School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Show-ku, Nagoya 466-8555, Japan
| | - Akihiro Okamoto
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.,Graduate School of Chemical Sciences and Engineering, Hokkaido University, North 13 West 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan
| | - Tetsu Ichitsubo
- Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan. .,Advanced Science Research Center, Japan Atomic Energy Agency, 2-4 Shirakata, Tokai-mura, Naka-gun, Ibaraki 319-1195, Japan
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Solar light induced photocatalytic process for reduction of hexavalent chromium and degradation of tetracycline and methylene blue by heterostructures made of SnS2 nanoplates surface modified by ZnWO4 nanorods. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121040] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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14
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Kumar G, Cilamkoti V, Dutta RK. Sunlight mediated enhanced photocatalytic degradation of antibiotics in aqueous medium using silicon doped carbon quantum dots decorated Bi2MoO6 nanoflakes. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128368] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Sharma S, Basu S. Construction of an efficient and durable hierarchical porous CuO/SiO2 monolith for synergistically boosting the visible-light-driven degradation of organic pollutants. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119759] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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16
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Synthesis, Characterization and Photodegradation Studies of Copper Oxide–Graphene Nanocomposites. COATINGS 2021. [DOI: 10.3390/coatings11121452] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In this work, a simple hydrothermal method was employed to prepare a pristine sample of copper oxide (CuO) and three samples of copper oxide–graphene nanocomposites (CuO-xG) with x = 2.5, 5, and 10 mg of graphene. The synthesized samples were characterized using X-ray powder diffractometry (XRD), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDX), Fourier-transform infrared spectroscopy (FTIR) and ultraviolet–visible (UV-Vis) spectroscopy. The XRD patterns of CuO-xG nanocomposites exhibited the diffraction peaks related to the crystal planes of monoclinic CuO and hexagonal graphite. The surface morphology of the prepared samples was investigated using FESEM images. EDX analysis was used to investigate the chemical composition of the synthesized samples. FTIR spectroscopy identified the vibrational modes of the covalent bonds present in the samples. The allowed direct optical bandgap energy was calculated for all prepared samples using UV-Vis absorption spectra. The small bandgap of CuO-xG nanocomposites indicates their potential use as an effective photocatalyst in the presence of visible light. Photocatalytic activity of the samples was explored for the degradation of methylene blue (MB) dye contaminant under visible light irradiation. The results showed that the CuO-5G sample has the highest photodegradation efficiency (~56%).
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Verma S, Younis SA, Kim KH, Dong F. Anisotropic ZnO nanostructures and their nanocomposites as an advanced platform for photocatalytic remediation. JOURNAL OF HAZARDOUS MATERIALS 2021; 415:125651. [PMID: 33770683 DOI: 10.1016/j.jhazmat.2021.125651] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 03/05/2021] [Accepted: 03/10/2021] [Indexed: 06/12/2023]
Abstract
In pursuit of advanced heterogeneous photocatalysts, ZnO has emerged as a promising option for solar-driven heterogeneous photocatalyst with many advantageous properties (e.g., optical band structure and electronic properties). However, as the efficacy of such system can also be limited by a number of demerits (e.g., fast recombination of charge carriers and limited photon absorption), considerable efforts are needed for its effective and practical scale-up. This article provides a detailed literature review of the synthesis and modification of ZnO nanostructures with tuned band structures and controllable morphologies for solar light harvesting. The potential of anisotropic ZnO nanostructures is also discussed with respect to the photocatalytic degradation of organic/inorganic water pollutants. Further, the role of various metal dopants is discussed for the enhancement of photocatalytic activity along with evaluation of their photocatalytic performances under UV-visible or solar irradiation. Finally, our discussions are expanded to describe the prospects of developed ZnO nano-photocatalysts for real-world applications with respect to light-harvesting efficiency and mechanical stability.
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Affiliation(s)
- Swati Verma
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea
| | - Sherif A Younis
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea; Analysis and Evaluation Department, Egyptian Petroleum Research Institute, Nasr City, Cairo 11727, Egypt
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, 222 Wangsimni-Ro, Seoul 04763, Republic of Korea.
| | - Fan Dong
- Yangtze Delta Region Institute (Huzhou), & Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Huzhou 313001, China; State Centre for International Cooperation on Designer Low-carbon and Environmental Materials (CDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou 450001, China.
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18
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Su X, Chen W, Han Y, Wang D, Yao J. In-situ synthesis of Cu 2O on cotton fibers with antibacterial properties and reusable photocatalytic degradation of dyes. APPLIED SURFACE SCIENCE 2021; 536:147945. [PMID: 33012933 PMCID: PMC7518955 DOI: 10.1016/j.apsusc.2020.147945] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 09/13/2020] [Accepted: 09/17/2020] [Indexed: 05/30/2023]
Abstract
In this study, the cotton fabrics/cuprous oxide-nanocellulose (Cu2O-NC) flexible and recyclable composite material (COCO) with highly efficient photocatalytic degradation of dyes and antibacterial properties was fabricated. Using flexible cotton fabrics as substrates, Cu2O were in-situ synthesized to make Cu2O uniformly grew on cotton fibers and were wrapped with NC. The photocatalytic degradation ability of COCO-5 was verified by use methylene blue (MB), the degradation rate was as high as 98.32%. The mechanism of COCO-5 photocatalysis and the process of dye degradation were analyzed by using electron paramagnetic resonance (EPR) spectrum, transient photocurrent response (TPR) spectrum, Fourier transform infrared (FTIR) spectroscopy and ion chromatography (IC). This study analyzed the complete path from electron excitation to dye degradation to harmless small molecules. Qualitative and quantitative experiments demonstrate that COCO-5 has high antibacterial activity against S. aureus and E. coli, the highest antibacterial rate can reach 93.25%. Finally, the stability of COCO-5 was verified by recycling and mechanical performance tests. The textile-based Cu2O functionalized material has photocatalytic degradation and antibacterial properties, and the preparation process is simple and convenient for repeated use, so it has great potential in wastewater treatment containing dyes and bacteria.
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Affiliation(s)
- Xiuping Su
- Shaoxing University Yuanpei College, Shaoxing, Zhejiang 312000, China
| | - Wei Chen
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Yanna Han
- Shaoxing University Yuanpei College, Shaoxing, Zhejiang 312000, China
| | - Duanchao Wang
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Juming Yao
- College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
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19
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Li YX, Wang X, Wang CC, Fu H, Liu Y, Wang P, Zhao C. S-TiO 2/UiO-66-NH 2 composite for boosted photocatalytic Cr(VI) reduction and bisphenol A degradation under LED visible light. JOURNAL OF HAZARDOUS MATERIALS 2020; 399:123085. [PMID: 32534399 DOI: 10.1016/j.jhazmat.2020.123085] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 05/19/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Series sulfur-doped TiO2/amine-functionalized zirconium metal organic frameworks (S-TiO2/UiO-66-NH2) composites (U1Tx) were facilely fabricated from the as-prepared S-TiO2 and UiO-66-NH2 via ball-milling method. The photocatalytic activities of U1Tx toward Cr(VI) reduction and bisphenol A (BPA) degradation were tested under low-power LED visible light. The results demonstrated that U1T3 exhibited better photocatalytic performances than the pristine S-TiO2 and UiO-66-NH2 due to the improved separation and migration of electrons and holes. Furthermore, the influence factors like pH values and foreign ions on the photocatalytic performances of U1Tx were also investigated. The Box-Behnken design methodology was utilized to further clarify that the inorganic foreign anions and dissolved organic matters could exert significant effects on photocatalytic Cr(VI) reduction performance. As well, the possible pathway of BPA degradation was depicted. After four runs of Cr(VI) removal, it was found that U1T3 exhibited preferable reusability and water stability. The probable reaction mechanism was proposed and verified by active species capture experiments, electron spin resonance determination and electrochemical analyses.
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Affiliation(s)
- Yu-Xuan Li
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Xun Wang
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Chong-Chen Wang
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China.
| | - Huifen Fu
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Yanbiao Liu
- Textile Pollution Controlling Engineering Center of Ministry of Environmental Protection, College of Environmental Science and Engineering, Donghua University, 2999 North Renmin Road, Shanghai 201620, China
| | - Peng Wang
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
| | - Chen Zhao
- Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, School of Environment and Energy Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China
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20
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Mali SC, Dhaka A, Githala CK, Trivedi R. Green synthesis of copper nanoparticles using Celastrus paniculatus Willd. leaf extract and their photocatalytic and antifungal properties. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2020; 27:e00518. [PMID: 32923378 PMCID: PMC7475076 DOI: 10.1016/j.btre.2020.e00518] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 07/27/2020] [Accepted: 08/10/2020] [Indexed: 12/14/2022]
Abstract
This research aimed to explore the eco-friendly green synthesis of copper nanoparticles (CuNPs) using Celastrus paniculatus leaves extract. Primarily, the biosynthesized CuNPs characterized by UV-vis spectroscopy showed an absorption peak at 269 nm. Further, The SEM and TEM studies revealed the spherical shape of particles with size ranged between 2-10 nm with an average particle diameter of 5 nm. FT-IR analysis confirmed the presence of functional groups -OH, C[bond, double bond]C and C-H triggers the synthesis of CuNPs. The negative zeta potential -22.2 mV indicated the stability of CuNPs was confirmed by DLS and the composition and purity by EDS studies. Further, the photocatalytic property of the CuNPs was divulged by their methylene blue dye degradation potential. The reaction kinetics followed pseudo-first-order with k-values (rate constant) 0.0172 min-1. In addition, this material was found to be a good antifungal agent against plant pathogenic fungi Fusarium oxysporum showed 76.29 ± 1.52 maximum mycelial inhibition.
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Affiliation(s)
- Suresh Chand Mali
- Laboratory of Plant Pathology, Department of Botany, University College of Science, Mohanlal Sukhadia University, Udaipur, 313001, Rajasthan, India
| | - Anita Dhaka
- Laboratory of Plant Pathology, Department of Botany, University College of Science, Mohanlal Sukhadia University, Udaipur, 313001, Rajasthan, India
| | - Chanda Kumari Githala
- Laboratory of Plant Pathology, Department of Botany, University College of Science, Mohanlal Sukhadia University, Udaipur, 313001, Rajasthan, India
| | - Rohini Trivedi
- Laboratory of Plant Pathology, Department of Botany, University College of Science, Mohanlal Sukhadia University, Udaipur, 313001, Rajasthan, India
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21
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Navada KM, Nagaraja GK, D’Souza JN, Kouser S, Ranjitha R, Manasa DJ. Phyto assisted synthesis and characterization of Scoparia dulsis L. leaf extract mediated porous nano CuO photocatalysts and its anticancer behavior. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-020-01536-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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22
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Reyes-Ledezma JL, Uribe-Ramírez D, Cristiani-Urbina E, Morales-Barrera L. Biosorptive removal of acid orange 74 dye by HCl-pretreated Lemna sp. PLoS One 2020; 15:e0228595. [PMID: 32027708 PMCID: PMC7004341 DOI: 10.1371/journal.pone.0228595] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 01/18/2020] [Indexed: 11/18/2022] Open
Abstract
Acid orange 74 (AO74) is a chromium-complex monoazo acid dye widely used in the textile industry. Due to being highly toxic and non-biodegradable, it must be removed from polluted water to protect the health of people and the environment. The aim of this study was two-fold: to evaluate the biosorption of AO74 from an aqueous solution by utilizing HCl-pretreated Lemna sp. (HPL), and to examine dye desorption from the plant material. The maximum capacity of AO74 biosorption (64.24 mg g-1) was reached after 4 h at the most adequate pH, which was 2. The biosorption capacity decreased 25% (to 48.18 mg g-1) during the second biosorption/desorption cycle and remained essentially unchanged during the third cycle. The pseudo-second-order kinetics model concurred well with the experimental results of assays involving various levels of pH in the eluent solution and distinct initial concentrations of AO74. NaOH (0.01 M) was the best eluent solution. The Toth isotherm model best described AO74 biosorption equilibrium data. FTIR analysis confirmed the crucial role of HPL proteins in AO74 biosorption. SEM-EDX and CLSM techniques verified the effective biosorption/desorption of the dye during the three cycles. Therefore, HPL has potential for the removal of AO74 dye from wastewaters.
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Affiliation(s)
- Jessica Lizeth Reyes-Ledezma
- Departamento de Ingeniería Bioquímica, Unidad Profesional Adolfo López Mateos, Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Mexico City, Mexico
| | - Daniel Uribe-Ramírez
- Departamento de Ingeniería Bioquímica, Unidad Profesional Adolfo López Mateos, Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Mexico City, Mexico
| | - Eliseo Cristiani-Urbina
- Departamento de Ingeniería Bioquímica, Unidad Profesional Adolfo López Mateos, Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Mexico City, Mexico
| | - Liliana Morales-Barrera
- Departamento de Ingeniería Bioquímica, Unidad Profesional Adolfo López Mateos, Instituto Politécnico Nacional, Escuela Nacional de Ciencias Biológicas, Mexico City, Mexico
- * E-mail:
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23
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pH-dependent biosynthesis of copper oxide nanoparticles using Galphimia glauca for their cytocompatibility evaluation. APPLIED NANOSCIENCE 2020. [DOI: 10.1007/s13204-019-01159-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Verma S, Dutta RK. Adsorptive Removal of Toxic Dyes Using Chitosan and Its Composites. GREEN MATERIALS FOR WASTEWATER TREATMENT 2020. [DOI: 10.1007/978-3-030-17724-9_10] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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25
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Singh J, Kumar V, Kim KH, Rawat M. Biogenic synthesis of copper oxide nanoparticles using plant extract and its prodigious potential for photocatalytic degradation of dyes. ENVIRONMENTAL RESEARCH 2019; 177:108569. [PMID: 31352301 DOI: 10.1016/j.envres.2019.108569] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2019] [Revised: 05/23/2019] [Accepted: 07/01/2019] [Indexed: 05/24/2023]
Abstract
The development of benign and efficient approaches for treating industrial grade toxic organic dyes is an ongoing challenge. To this end, copper oxide nanoparticles (CuO NPs) were prepared by a simple, environment friendly, and economical green synthesis procedure by using Psidium guajava leaf extract as reducing agent (i.e., for the reduction of metal salt) as well as capping agent and copper acetate monohydrate as metal salt. The formation of mono-dispersed and spherical (average size 2-6 nm with BET surface area 52.6 m2/g) CuO NPs was confirmed by various spectroscopic and microscopic techniques. The CuO NPs exhibited excellent degradation efficiency for the industrial dyes, i.e., Nile blue (NB) (93% removal in 120 min) and reactive yellow 160 (RY160) (81% removal in 120 min) with apparent rate constants of 0.023 and 0.014 min-1, respectively. The CuO catalyst was found to be reusable for photocatalytic dye degradation even after five consecutive cycles. The limit of detection (LOD) values for NB and RY160 were 4 and 9 mg/L, respectively. In light of their high reusability and photocatalytic efficiency along with adaptability to green synthesis, the use of biogenic CuO NPs is a promising option for the purification of water resources contaminated with industrial dye.
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Affiliation(s)
- Jagpreet Singh
- Department of Nanotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib, 140406, Punjab, India
| | - Vanish Kumar
- National Agri-Food Biotechnology Institute (NABI), S.A.S. Nagar, Punjab, 140306, India
| | - Ki-Hyun Kim
- Department of Civil & Environmental Engineering, Hanyang University, Seoul, 04763, South Korea.
| | - Mohit Rawat
- Department of Nanotechnology, Sri Guru Granth Sahib World University, Fatehgarh Sahib, 140406, Punjab, India
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Bharathi D, Ranjithkumar R, Chandarshekar B, Bhuvaneshwari V. Bio-inspired synthesis of chitosan/copper oxide nanocomposite using rutin and their anti-proliferative activity in human lung cancer cells. Int J Biol Macromol 2019; 141:476-483. [PMID: 31473316 DOI: 10.1016/j.ijbiomac.2019.08.235] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 07/28/2019] [Accepted: 08/28/2019] [Indexed: 11/28/2022]
Abstract
Polymer functionalized metal oxide nanocomposites are great interest due to wide range of application, especially in nanomedicine. The present study reports an eco-friendly bio-inspired synthesis of chitosan/copper oxide (CS-CuO) nanocomposite for the first time using rutin. The bio-synthesized CS-CuO nanocomposite was characterized using UV-Visible spectroscopy, FE-SEM, EDS, TEM, XRD and FTIR analyses. FE-SEM and TEM images revealed the synthesized CS-CuO nanocomposite having spherical shaped structure with an average size of 10-30 nm. EDS analysis confirmed the elements present in synthesized CS-CuO nanocomposite. FTIR studies revealed the role of rutin and chitosan for reduction, capping and synthesis of CS-CuO nanocomposite from the precursor copper salt. The XRD analysis revealed monoclinic structure of CS-CuO nanocomposite. Anti-proliferative activity of the CS-CuO nanocomposite was evaluated in human lung cancer cell line A549. Synthesized CS-CuO nanocomposite showed concentration-depended anti-proliferative activity against A549 cancer cells and their IC50 value was found to be 20 ± 0.50 μg/mL. Furthermore, synthesized nanocomposite induce apoptosis in treated A549 cancer cells assayed by AO/EtBr fluorescent staining method. In conclusion, the synthesized CS-CuO nanocomposite using rutin can be used as a potential anticancer agent in biomedical and clinical sectors.
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Affiliation(s)
- Devaraj Bharathi
- Department of Biotechnology, Kongunadu Arts and Science College, Coimbatore 029, Tamilnadu, India.
| | - R Ranjithkumar
- Department of Biotechnology, Kongunadu Arts and Science College, Coimbatore 029, Tamilnadu, India
| | - B Chandarshekar
- Nanotechnology Research Lab, Department of Physics, Kongunadu Arts and Science College, Coimbatore 029, Tamilnadu, India
| | - V Bhuvaneshwari
- Department of Biotechnology, Kongunadu Arts and Science College, Coimbatore 029, Tamilnadu, India.
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Midya L, Patra AS, Banerjee C, Panda AB, Pal S. Novel nanocomposite derived from ZnO/CdS QDs embedded crosslinked chitosan: An efficient photocatalyst and effective antibacterial agent. JOURNAL OF HAZARDOUS MATERIALS 2019; 369:398-407. [PMID: 30784969 DOI: 10.1016/j.jhazmat.2019.02.022] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 01/09/2019] [Accepted: 02/08/2019] [Indexed: 06/09/2023]
Abstract
A novel nanocomposite (cl-Ch-pMAc@ZnO/CdSQDs) has been developed under microwave irradiation via fabrication of ZnO/CdS quantum dots on anionically functionalized chitosan [i.e. poly (methacrylic acid) crosslinked chitosan (cl-Ch-pMAc) in the presence of diethylene glycol dimethacrylate (DEGDMA) crosslinker]. The structural, morphological and chemical/physical properties of crosslinked chitosan and the nanocomposites have been investigated using 13C nuclear magnetic resonance spectroscopy (13C NMR spectroscopy), high resolution-transmission electron microscopy (HR-TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) analyses. The nanocomposite demonstrates outstanding efficacy towards the photocatalytic degradation of cationic dyes [malachite green (MG), and safranin (SF)] and toxic organic molecule 2,4-dichloro phenol (2,4-DCP) under the exposure of sunlight. Liquid chromatography mass spectroscopy (LC-MS) studies predict that small molecules are produced by degradation. Moreover, the composite exhibits excellent antibacterial activity towards E-coli and B. subtilis. Finally, the nanocomposite can be regenerated effectively with changing the solution pH and also shows 5 times reusability without significant reduction on its efficiency.
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Affiliation(s)
- Lipi Midya
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, India
| | | | - Chranjib Banerjee
- Department of Environmental Science & Engineering, Indian Institute of Technology (ISM), Dhanbad, 826004, India
| | - Asit Baran Panda
- Discipline of Inorganic Materials and Catalysis, Central Salt and Marine Chemicals Research Institute (CSIR), Bhavnagar, 364002, Gujarat, India.
| | - Sagar Pal
- Department of Applied Chemistry, Indian Institute of Technology (ISM), Dhanbad, 826004, India.
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Narula A, Rao CP. Hydrogel of the Supramolecular Complex of Graphene Oxide and Sulfonatocalix[4]arene as Reusable Material for the Degradation of Organic Dyes: Demonstration of Adsorption and Degradation by Spectroscopy and Microscopy. ACS OMEGA 2019; 4:5731-5740. [PMID: 31459726 PMCID: PMC6648904 DOI: 10.1021/acsomega.9b00545] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 03/14/2019] [Indexed: 05/23/2023]
Abstract
Industrial modernization causes severe contamination of water resources due to which the presence of organic dyes poses a great threat to human life. To address this, we have synthesized a hydrogel GSCg using graphene oxide (GO), sulphonatocalix[4]arene (SC4a), and l-Cys by heating at 90 °C for 30 min and characterized by analytic, spectroscopy, and microscopy techniques. The GSCg possessing porous structure and adsorbs all three types of dyes, viz., eosin yellow (anionic), neutral red, and methylene blue (cationic), as shown by scanning electron microscopy, and the adsorption kinetics are addressed. The dye adsorbed by the gel (dye@GSCg) has been degraded by the treatment of Cu2+/N2H4, which regenerates the gel. The regenerated gel has been demonstrated for further cycles of adsorption followed by degradation. Alternatively, the degradation of the organic dyes was also demonstrated by an in situ approach by taking GO, SC4a, l-Cys, and the organic dye together and subjecting the mixture to hydrothermal conditions and the process leaves out free gel (GSCg d). This was proven to be true in the case of each of the 12 dyes studied individually and also for their mixture, supporting that this methodology can be employed for large scale purification of contaminated water with high efficiency. GSCg d was repeatedly used for the adsorption and degradation (with the use of Cu2+/N2H4) cycles wherein the gel does not lose its adsorption capability even after several cycles. Therefore, {GO···SC4a} hybrid is a smart, sustainable, and reusable material suitable for the purification of water contaminated with industrial organic dye effluents.
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Brilliant Green and Acid Orange 74 Dyes Removal from Water by Pinus roxburghii Leaves in Naturally Benign Way: An Application of Green Chemistry. J CHEM-NY 2019. [DOI: 10.1155/2019/3573704] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The purpose of this study was to use low cost and easily accessible biosorbent for batch-scale elimination of brilliant green and acid orange 74 dyes from aqueous solution. Pinus roxburghii leaves were utilized to study their dye-eliminating capacities. The adsorbent was characterized by FTIR, TGA, DTA, and SEM. The optimized conditions for brilliant green and acid orange 74 dye elimination were adsorbent dose, 1.2 and 1.8 g; contact time, 30 and 45 min; pH, 2 and 1; temperature, 50°C and 60°C; and agitation speed, 125 rpm and 50 rpm for BG and AO-74, respectively. Adsorption records well fitted Langmuir isotherm. Possibility of the procedure was shown by negative values of the thermodynamic parameter ∆G° for both dyes. Kinetic studies showed that adsorption of BG and AO-74 dyes from watery solution by PR leaves followed pseudo-second-order kinetics.
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30
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Geng T, He J, Hu L, Li J. Structure and photocatalytic oxidation desulfurization performance of CeO2/HTi2NbO7-NS nanocomposite. INORG CHEM COMMUN 2019. [DOI: 10.1016/j.inoche.2019.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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Photocatalytic Performance of Cu xO/TiO₂ Deposited by HiPIMS on Polyester under Visible Light LEDs: Oxidants, Ions Effect, and Reactive Oxygen Species Investigation. MATERIALS 2019; 12:ma12030412. [PMID: 30699939 PMCID: PMC6385099 DOI: 10.3390/ma12030412] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Revised: 01/18/2019] [Accepted: 01/22/2019] [Indexed: 01/21/2023]
Abstract
In the present study, we propose a new photocatalytic interface prepared by high-power impulse magnetron sputtering (HiPIMS), and investigated for the degradation of Reactive Green 12 (RG12) as target contaminant under visible light light-emitting diodes (LEDs) illumination. The CuxO/TiO₂ nanoparticulate photocatalyst was sequentially sputtered on polyester (PES). The photocatalyst formulation was optimized by investigating the effect of different parameters such as the sputtering time of CuxO, the applied current, and the deposition mode (direct current magnetron sputtering, DCMS or HiPIMS). The results showed that the fastest RG12 degradation was obtained on CuxO/TiO₂ sample prepared at 40 A in HiPIMS mode. The better discoloration efficiency of 53.4% within 360 min was found in 4 mg/L of RG12 initial concentration and 0.05% Cuwt/PESwt as determined by X-ray fluorescence. All the prepared samples contained a TiO₂ under-layer with 0.02% Tiwt/PESwt. By transmission electron microscopy (TEM), both layers were seen uniformly distributed on the PES fibers. The effect of the surface area to volume (dye volume) ratio (SA/V) on the photocatalytic efficiency was also investigated for the discoloration of 4 mg/L RG12. The effect of the presence of different chemicals (scavengers, oxidant or mineral pollution or salts) in the photocatalytic medium was studied. The optimization of the amount of added hydrogen peroxide (H₂O₂) and potassium persulfate (K₂S₂O₈) was also investigated in detail. Both, H₂O₂ and K₂S₂O₈ drastically affected the discoloration efficiency up to 7 and 6 times in reaction rate constants, respectively. Nevertheless, the presence of Cu (metallic nanoparticles) and NaCl salt inhibited the reaction rate of RG12 discoloration by about 4 and 2 times, respectively. Moreover, the systematic study of reactive oxygen species' (ROS) contribution was also explored with the help of iso-propanol, methanol, and potassium dichromate as •OH radicals, holes (h⁺), and superoxide ion-scavengers, respectively. Scavenging results showed that O₂- played a primary role in RG12 removal; however, •OH radicals' and photo-generated holes' (h⁺) contributions were minimal. The CuxO/TiO₂ photocatalyst was found to have a good reusability and stability up to 21 cycles. Ions' release was quantified by means of inductively coupled plasma mass spectrometry (ICP-MS) showing low Cu-ions' release.
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32
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Facile fabrication of visible light-driven CeO2/PMMA thin film photocatalyst for degradation of CR and MO dyes. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3419-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Bilal M, Rasheed T, Iqbal HMN, Hu H, Wang W, Zhang X. Toxicological Assessment and UV/TiO 2-Based Induced Degradation Profile of Reactive Black 5 Dye. ENVIRONMENTAL MANAGEMENT 2018; 61:171-180. [PMID: 29071551 DOI: 10.1007/s00267-017-0948-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 10/02/2017] [Indexed: 02/08/2023]
Abstract
In this study, the toxicological and degradation profile of Reactive Black 5 (RB5) dye was evaluated using a UV/TiO2-based degradation system. Fourier transform infrared spectroscopy (FT-IR), thin layer chromatography (TLC), high-performance liquid chromatography (HPLC) and ultra-performance liquid chromatography coupled with mass spectrometry (UPLC-MS) techniques were used to evaluate the degradation level of RB5. The UV-Vis spectral analysis revealed the disappearance of peak intensity at 599 nm (λmax). The FT-IR spectrum of UV/TiO2 treated dye sample manifest appearance of new peaks mainly because of the degraded product and/or disappearance of some characteristics peaks which were present in the untreated spectrum. The HPLC profile verified the RB5 degradation subject to the formation of metabolites at different retention times. A stable color removal higher than 96% with COD removal in the range of 74-82.3% was noted at all evaluated dye concentrations. The tentative degradation pathway of RB5 is proposed following a careful analysis of the intermediates identified by UPLC-MS. Toxicity profile of untreated and degraded dye samples was monitored using three types of human cell lines via MTT assay and acute toxicity testing with Artemia salina. In conclusion, the UV/TiO2-based degradation system could be effectively employed for the remediation of textile wastewater comprising a high concentration of reactive dyes.
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Affiliation(s)
- Muhammad Bilal
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Tahir Rasheed
- The School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L., CP 64849, Mexico
| | - Hongbo Hu
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
- National Experimental Teaching Center for Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Wei Wang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xuehong Zhang
- State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
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34
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Wahab R, Khan F, Kaushik NK, Musarrat J, Al-Khedhairy AA. Photocatalytic TMO-NMs adsorbent: Temperature-Time dependent Safranine degradation, sorption study validated under optimized effective equilibrium models parameter with standardized statistical analysis. Sci Rep 2017; 7:42509. [PMID: 28195174 PMCID: PMC5307350 DOI: 10.1038/srep42509] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/12/2017] [Indexed: 11/09/2022] Open
Abstract
In this paper, chemically synthesized copper oxide nanoparticles (CuO-NPs), were employed for two processes: one is photocatalytic degradation and second one adsorption for the sorption of safranine (SA) dye in an aqueous medium at pH = 12.01. The optimized analytes amount (nano-adsorbent = 0.10 g, conc. range of SA dye 56.13 ppm to 154.37 ppm, pH = 12.01, temperature 303 K) reached to equilibrium point in 80 min, which acquired for chemical adsorption-degradation reactions. The degredated SA dye data’s recorded by UV-visible spectroscopy for the occurrence of TMO-NMs of CuO-NPs at anticipated period of interval. The feasible performance of CuO-NPs was admirable, shows good adsorption capacity qm = 53.676 mg g−1 and most convenient to best fitted results establish by linear regression equation, corresponded for selected kinetic model (pseudo second order (R2 = 0.9981), equilibrium isotherm models (Freundlich, Langmuir, Dubnin-Radushkevich (D-R), Temkin, H-J and Halsey), and thermodynamic parameters (∆H° = 75461.909 J mol−1, ∆S° = 253.761 J mol−1, ∆G° = −1427.93 J mol−1, Ea = 185.142 J mol−1) with error analysis. The statistical study revealed that CuO-NPs was an effective adsorbent certified photocatalytic efficiency (η = 84.88%) for degradation of SA dye, exhibited more feasibility and good affinity toward adsorbate, the sorption capacity increases with increased temperature at equilibrium point.
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Affiliation(s)
- Rizwan Wahab
- Zoology Department, College of Science King Saud University, Riyadh 11451, Saudi Arabia.,Al-Jeraisy, Chair for DNA Research, Department of Zoology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Farheen Khan
- Department of Chemistry, Aligarh Muslim University, Aligarh U.P. 202002, India
| | | | - Javed Musarrat
- Dept. of Ag. Microbiology, AMU, Aligarh, India.,Baba Gulam Shah Badshah University, Rajouri, J&K, India
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35
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Song LN, Chen L, He J, Chen P, Zeng HK, Au CT, Yin SF. The first synthesis of Bi self-doped Bi2MoO6–Bi2Mo3O12 composites and their excellent photocatalytic performance for selective oxidation of aromatic alkanes under visible light irradiation. Chem Commun (Camb) 2017; 53:6480-6483. [DOI: 10.1039/c7cc02890c] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bi self-doped Bi2MoO6–Bi2Mo3O12 composites were first synthesized by a one-step method and they showed excellent photocatalytic performance in the selective oxidation of aromatic alkanes under visible light irradiation.
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Affiliation(s)
- Lu-Na Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
| | - Lang Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
| | - Jie He
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
| | - Peng Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
| | - Huang-Kai Zeng
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
| | - Chak-Tong Au
- College of Chemistry and Chemical Engineering
- Hunan Institute of Engineering
- Xiangtan 411104
- China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- People's Republic of China
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36
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Gawande MB, Goswami A, Felpin FX, Asefa T, Huang X, Silva R, Zou X, Zboril R, Varma RS. Cu and Cu-Based Nanoparticles: Synthesis and Applications in Catalysis. Chem Rev 2016; 116:3722-811. [DOI: 10.1021/acs.chemrev.5b00482] [Citation(s) in RCA: 1589] [Impact Index Per Article: 198.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Manoj B. Gawande
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
| | - Anandarup Goswami
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
- Department
of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
| | - François-Xavier Felpin
- UFR
Sciences et Techniques, UMR CNRS 6230, Chimie et Interdisciplinarité:
Synthèse, Analyse, Modélisation (CEISAM), Université de Nantes, 2 Rue de la Houssinière, BP 92208, Nantes 44322 Cedex 3, France
| | - Tewodros Asefa
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
- Department
of Chemical and Biochemical Engineering, Rutgers, The State University of New Jersey, 98 Brett Road, Piscataway, New Jersey 08854, United States
| | - Xiaoxi Huang
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Rafael Silva
- Department
of Chemistry, Maringá State University, Avenida Colombo 5790, CEP 87020-900 Maringá, Paraná, Brazil
| | - Xiaoxin Zou
- State
Key
Laboratory of Inorganic Synthesis and Preparative Chemistry, International
Joint Research Laboratory of Nano-Micro Architecture Chemistry, College
of Chemistry, Jilin University, 2699 Qianjin Street, Changchun 130012, China
| | - Radek Zboril
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
| | - Rajender S. Varma
- Regional
Centre of Advanced Technologies and Materials, Faculty of Science,
Department of Physical Chemistry, Palacky University, Šlechtitelů
11, 783 71 Olomouc, Czech Republic
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37
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Sharma A, Dutta RK, Roychowdhury A, Das D. Studies on structural defects in bare, PVP capped and TPPO capped copper oxide nanoparticles by positron annihilation lifetime spectroscopy and their impact on photocatalytic degradation of rhodamine B. RSC Adv 2016. [DOI: 10.1039/c6ra12795a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Enhanced photocatalytic dye degradation by reducing sizes of surface defects.
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Affiliation(s)
- Aarti Sharma
- Centre of Nanotechnology
- Indian Institute of Technology Roorkee
- Roorkee 247667
- India
| | - Raj Kumar Dutta
- Centre of Nanotechnology
- Indian Institute of Technology Roorkee
- Roorkee 247667
- India
- Department of Chemistry
| | | | - Dipankar Das
- UGC-DAE Consortium for Scientific Research
- Kolkata Centre
- Kolkata-700098
- India
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38
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Talukdar S, Dutta RK. A mechanistic approach for superoxide radicals and singlet oxygen mediated enhanced photocatalytic dye degradation by selenium doped ZnS nanoparticles. RSC Adv 2016. [DOI: 10.1039/c5ra17940h] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Superoxide and singlet oxygen mediated photocatalytic dye degradation by Se-doped ZnS NPs.
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Affiliation(s)
- Soumita Talukdar
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247667
- India
| | - Raj Kumar Dutta
- Department of Chemistry
- Indian Institute of Technology Roorkee
- Roorkee 247667
- India
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39
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Show B, Mukherjee N, Mondal A. α-Fe2O3 nanospheres: facile synthesis and highly efficient photo-degradation of organic dyes and surface activation by nano-Pt for enhanced methanol sensing. RSC Adv 2016. [DOI: 10.1039/c6ra13385a] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hematite α-Fe2O3 thin films have been deposited on FTO coated glass substrates. The films were found to perform efficiently towards electrochemical sensing of methanol and photodegradation of toxic dyes, viz. Indigo Carmine and Rhodamine B.
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Affiliation(s)
- Bibhutibhushan Show
- Department of Chemistry
- Jadavpur University
- Kolkata 700032
- India
- Department of Chemistry
| | - Nillohit Mukherjee
- Centre of Excellence for Green Energy and Sensor Systems
- Indian Institute of Engineering Science and Technology
- Howrah 711103
- India
| | - Anup Mondal
- Department of Chemistry
- Indian Institute of Engineering Science and Technology
- Howrah 711103
- India
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40
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Liu Y, Chen L, Yuan Q, He J, Au CT, Yin SF. A green and efficient photocatalytic route for the highly-selective oxidation of saturated alpha-carbon C–H bonds in aromatic alkanes over flower-like Bi2WO6. Chem Commun (Camb) 2016; 52:1274-7. [DOI: 10.1039/c5cc07586f] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A green and efficient photocatalytic route has been developed for the highly-selective oxidation of aromatic alkanes over flower-like Bi2WO6 under solvent-free conditions.
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Affiliation(s)
- Ying Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- People’s Republic of China
| | - Lang Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- People’s Republic of China
| | - Qing Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- People’s Republic of China
| | - Jie He
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- People’s Republic of China
| | - Chak-Tong Au
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- People’s Republic of China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- People’s Republic of China
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41
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Elumalai S, Muthuraman G. Studies on rhodamine B dye transport through a supported liquid membrane from basic aqueous solutions using phenol as a membrane phase. RSC Adv 2015. [DOI: 10.1039/c5ra14458b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The aim of this work is to investigate the transport of rhodamine B across a supported liquid membrane under various experimental conditions.
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Affiliation(s)
- S. Elumalai
- PG & Research Department of Chemistry
- Presidency College (Autonomous)
- Chennai-5
- India
| | - G. Muthuraman
- PG & Research Department of Chemistry
- Presidency College (Autonomous)
- Chennai-5
- India
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