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Naik CC, Kamat DP, Gaonkar SK. Assessment of the catalytic and biological potential of yttrium and samarium-modified copper ferrite nanomaterials. Int J Biol Macromol 2024; 268:131752. [PMID: 38657936 DOI: 10.1016/j.ijbiomac.2024.131752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 04/18/2024] [Accepted: 04/20/2024] [Indexed: 04/26/2024]
Abstract
The present study reports the preparation of crystalline and nanosized copper ferrite (CuFe2O4), Y3+ substituted CuFe2O4 (CuFe1.95Y0.05O4), and Sm3+ substituted CuFe2O4 (CuFe1.95Sm0.05O4) using a simple co-precipitation method. The XRD analysis confirmed the formation of the cubic spinel phase, while XPS studies validated the presence of Cu and Fe in 2+ and 3+ oxidation states respectively. Transmission electron microscopy (TEM) analysis revealed the nanoparticles with a diameter in the range of 10-60 nm. The introduction of fractional amounts of Y3+ and Sm3+ ions in the CuFe2O4 lattice enhanced the reduction of 4-nitrophenol, attributed to decreased particle size facilitating the reduction process. In the case of antimicrobial activity, Candida albican was found to be maximally sensitive to CuFe2O4 and CuFe1.95Y0.05O4, while Pseudomonas aeruginosa was inhibited by CuFe1.95Sm0.05O4. Moreover, a maximum of 61.9 ± 1.91 % anti-Pseudomonas biofilm activity and 75.7 ± 1.28 % DPPH radical scavenging activity was observed for CuFe1.95Y0.05O4 at 200 μg/ml concentration. The improvement in biological activities was attributed to the reduced particle size, crystal structure modification, and increased stability of the CuFe2O4 lattice with substitution. The enhancement in catalytic and biological performance highlighted the effectiveness of minimal Y3+ and Sm3+ concentrations in modulating the properties of CuFe2O4 nanomaterials.
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Affiliation(s)
- Chandan C Naik
- Department of Chemistry, Dhempe College of Arts & Science, Miramar, Panaji, Goa 403001, India.
| | - Durga P Kamat
- Department of Chemistry, Dhempe College of Arts & Science, Miramar, Panaji, Goa 403001, India
| | - Sanket K Gaonkar
- Department of Microbiology, P.E.S's R.S.N College of Arts and Science, Farmagudi, Ponda, Goa, India
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Priyadharsini R, Manoharan C, Bououdina M, Sagadevan S, Venkateshwarlu M, Asath Bahadur S. Impact of nickel substitution on structural, dielectric, magnetic, and electrochemical properties of copper ferrite nanostructures for energy storage devices. J Colloid Interface Sci 2024; 653:917-929. [PMID: 37774655 DOI: 10.1016/j.jcis.2023.09.113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/09/2023] [Accepted: 09/18/2023] [Indexed: 10/01/2023]
Abstract
Nickel-substituted copper ferrite nanoparticles (NP) (Cu1-xNixFe2O4) were prepared using a cost-effective hydrothermal method. X-ray diffraction (XRD) pattern revealed a single-phase cubic spinel structure. The increase in lattice parameters and decrease in crystallite size are associated with the replacement of Cu ions by Ni ions in the host lattice of copper ferrite. The optimized Cu0.95Ni0.05Fe2O4 composition was subsequently annealed at 750 °C and 850 °C for further studies. Fourier transform infrared (FT-IR) analysis shows the existence of two promising fundamental adsorption peaks at 465 and 582 cm-1, related to the metal ion stretching vibrations at the tetrahedral (A) and octahedral (B) sites, respectively. The local disorder at both the A and B sublattices upon the incorporation of Ni was observed from the Raman analysis. Scanning electron microscopy (SEM) and high-resolution transmission electron microscopy (HR-TEM) images shows the formation of agglomerates composed of nano-sized spherical particles. A high Barrett-Joyner-Halenda (BJH) surface area was achieved 17.25 m2/g with a particle stability of -11.1 mV obtained by the zeta potential. Both the dielectric loss and dielectric constant are decreased, whereas the AC conductivity gets increased with increasing frequency. The magnetization-field hysteresis curves exhibited ferromagnetic behavior with a pseudo-single domain, and the cyclic voltammetry study revealed a pseudocapacitive trend. This study highlights the importance of Ni substitution to control the physicochemical properties of spinel-phase CuFe2O4 for diverse applications, such as energy storage and lithium-ion batteries.
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Affiliation(s)
- R Priyadharsini
- Department of Physics, Annamalai University, Annamalai Nagar 608002, Tamil Nadu, India
| | - C Manoharan
- Department of Physics, Annamalai University, Annamalai Nagar 608002, Tamil Nadu, India.
| | - Mohamed Bououdina
- Department of Mathematics and Sciences, College of Humanities and Sciences, Prince Sultan University, Riyadh, Saudi Arabia
| | - Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre, University of Malaya, Kuala Lumpur 50603, Malaysia; Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Islam Indonesia, Kamps Terpadu UII, JI. Kaliurang Km 14 Sleman, Yogyakarta, Indonesia
| | - M Venkateshwarlu
- CSIR-National Geophysical Research Institute, Uppal Road, Hyderabad 500007, India
| | - S Asath Bahadur
- Condensed Matter Physics Laboratory, International Research Centre, Kalasalingam Academy of Research and Education, Krishnakoil 626126, India
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Bagheri O, Esmkhani M, Javanshir S, Aghabarari B. Preparation of agar functionalized graphene oxide-immobilized copper ferrite aerogel for dye degradation via dark-Fenton oxidative process. Int J Biol Macromol 2023; 253:127432. [PMID: 37838123 DOI: 10.1016/j.ijbiomac.2023.127432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/07/2023] [Accepted: 10/11/2023] [Indexed: 10/16/2023]
Abstract
Dye and textile industries are one of the main causes of water pollution and put the environment and health of society at risk. Developing new materials to decontaminate industrial waste effluents containing dyes as pollutants is challenging due to numerous issues, including tailoring recyclable and biodegradable agents. This study focuses on applying an advanced oxidation process, electro-Fenton for the treatment of dye-containing wastewater using agar-functionalized graphene oxide-immobilized copper ferrite aerogel. The objective is therefore to determine the optimal conditions for the degradation of model pollutants methylene blue (MB). MB was oxidized and degraded through the dark-Fenton process using Agar@GO-CuFe2O4 as a new biobased catalyst. The effect of the operating parameters was then evaluated to determine the optimal conditions. The degradation process was screened for different initial concentrations of dye solution between 10 and 150 mg/l, a volume range of H2O2 between 0.5 and 2.5 ml, and different pH from 2 to 7. The results show that 99.89 % of the MB with the initial concentration of 150 ppm was degraded by 20 mg of the catalyst and 2 ml of H2O2 (30 % W/W) at 40 °C and pH = 6. Pseudo-second-order kinetics satisfactorily describes the experimental data. SYNOPSIS: The prepared catalyst can be applied to oxidize industrial effluents before they are released into the environment.
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Affiliation(s)
- Omran Bagheri
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Chemistry Department, Iran University of Science and Technology, Tehran, Iran
| | - Maryam Esmkhani
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Chemistry Department, Iran University of Science and Technology, Tehran, Iran
| | - Shahrzad Javanshir
- Pharmaceutical and Heterocyclic Compounds Research Laboratory, Chemistry Department, Iran University of Science and Technology, Tehran, Iran.
| | - Behzad Aghabarari
- Nanotechnology and Advanced Materials Department, Materials and Energy Research Center, Karaj 31787-316, Iran
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Shu R, Zhao Z, Yang X. Synthesis of hollow CuFe 2O 4 microspheres decorated nitrogen-doped graphene hybrid composites for broadband and efficient electromagnetic absorption. J Colloid Interface Sci 2023; 648:66-77. [PMID: 37295371 DOI: 10.1016/j.jcis.2023.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Revised: 06/02/2023] [Accepted: 06/04/2023] [Indexed: 06/12/2023]
Abstract
The development of graphene-based electromagnetic wave (EMW) absorbers with broad bandwidth, strong absorption and low filling ratio remains a big challenge. In this work, hollow copper ferrite microspheres decorated nitrogen-doped reduced graphene oxide (NRGO/hollow CuFe2O4) hybrid composites were prepared by a two-step route of solvothermal reaction and hydrothermal synthesis. Results of microscopic morphology analysis showed that the NRGO/hollow CuFe2O4 hybrid composites had a special entanglement structure between hollow CuFe2O4 microspheres and wrinkled NRGO. Moreover, the EMW absorption properties of as-prepared hybrid composites could be regulated by changing the additive amounts of hollow CuFe2O4. It was worth noting that when the additive amount of hollow CuFe2O4 was 15.0 mg, the attained hybrid composites showed the optimal EMW absorption performance. The minimum reflection loss reached up to -34.18 dB at a thin matching thickness of 1.98 mm and a low filling ratio of 20.0 wt%, and the corresponding effective absorption bandwidth was as large as 5.92 GHz, covering almost the whole Ku band. Furthermore, when the matching thickness was increased to 3.02 mm, the EMW absorption capacity was significantly enhanced, and the optimal reflection loss value of -58.45 dB was achieved. In addition, the possible EMW absorption mechanisms were proposed. Therefore, the structural design and composition regulation strategy presented in this work would provide a great reference value for the preparation of broadband and efficient graphene-based EMW absorbing materials.
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Affiliation(s)
- Ruiwen Shu
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan, 232001, China; School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China; Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Ziwei Zhao
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China
| | - Xunhong Yang
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China
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Wang J, Sun M, Wang L, Xiong X, Yuan W, Liu Y, Liu S, Zhang Q, Liu J, Wang Y, Tsang DCW. High-efficient removal of arsenic(III) from wastewater using combined copper ferrite@biochar and persulfate. Chemosphere 2023:139089. [PMID: 37285985 DOI: 10.1016/j.chemosphere.2023.139089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 05/17/2023] [Accepted: 05/30/2023] [Indexed: 06/09/2023]
Abstract
Arsenic (As) is a potentially toxic element with variable valence states. Due to high toxicity and bioaccumulation, As can pose a severe threat to the quality of the ecology as well as human health. In this work, As(III) in water was effectively removed by biochar-supported copper ferrite magnetic composite with persulfate. The copper ferrite@biochar composite exhibited higher catalytic activity than copper ferrite and biochar. The removal of As(III) could reach 99.8% within 1 h under the conditions of initial As(III) concentration at 10 mg/L, initial pH at 2-6, and equilibrium pH at 10. The maximum adsorption capacity of As(III) by copper ferrite@biochar-persulfate was 88.9 mg/g, achieving superior performance than mostly reported the metal oxide adsorbents. By means of a variety of characterization techniques, it was found that ∙OH acted as the main free radical for removing As(III) in the copper ferrite@biochar-persulfate system and the major mechanisms were oxidation and complexation. As a natural fibre biomass waste-derived adsorbent, ferrite@biochar presented a high catalytic efficiency and easy magnetic separation for As(III) removal. This study highlights the great potential of copper ferrite@biochar-persulfate application in As(III) wastewater treatment.
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Affiliation(s)
- Jin Wang
- School of Environmental Science and Engineering, Guangzhou University, 510006, Guangzhou, China
| | - Mengqing Sun
- School of Environmental Science and Engineering, Guangzhou University, 510006, Guangzhou, China
| | - Lulu Wang
- School of Environmental Science and Engineering, Guangzhou University, 510006, Guangzhou, China
| | - Xinni Xiong
- School of Environmental Science and Engineering, Guangzhou University, 510006, Guangzhou, China
| | - Wenhuan Yuan
- School of Environmental Science and Engineering, Guangzhou University, 510006, Guangzhou, China
| | - Yanyi Liu
- School of Environmental Science and Engineering, Guangzhou University, 510006, Guangzhou, China
| | - Siyu Liu
- School of Environmental Science and Engineering, Guangzhou University, 510006, Guangzhou, China
| | - Qiaozhi Zhang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Juan Liu
- School of Environmental Science and Engineering, Guangzhou University, 510006, Guangzhou, China.
| | - Yuqi Wang
- School of Environmental Science and Engineering, Guangzhou University, 510006, Guangzhou, China.
| | - Daniel C W Tsang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
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El Heda I, Dhahri R, Massoudi J, Dhahri E, Bahri F, khirouni K, Costa B. Study of the structural, electrical, dielectric properties and transport mechanisms of Cu 0.5Fe 2.5O 4 ferrite nanoparticles for energy storage, photocatalytic and microelectronic applications. Heliyon 2023; 9:e17403. [PMID: 37383187 PMCID: PMC10293728 DOI: 10.1016/j.heliyon.2023.e17403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 06/30/2023] Open
Abstract
Cu0.5Fe2.5O4 nanoparticles were synthesized by the self-combustion method whose XRD and FTIR analyzes confirm the formation of the desired spinel phase. The thermal evolution of conduction shows a semiconductor behaviour explained by a polaronic transport mechanism governed by the Non-overlapping Small Polaron Tunnelling (NSPT) model. DC conductivity and hopping frequency are positively correlated. The scaling of the conductivity leads to a single universal curve where the scaling parameter α has positive values, which testifies to the presence of Coulomb interactions between the mobile particles. Conduction and relaxation processes are positively correlated by similar activation energies. Nyquist diagrams are characterized by semicircular arcs perfectly modeled by an equivalent electrical circuit (R//C//CPE) indicating the contribution of the grains. The dielectric behaviour shows a strong predominance of conduction by the phenomenological theory of Maxwell-Wagner. The low values of electrical conductivity and dielectric loss and the high value of permittivity, make our compound a promising candidate for energy storage, photocatalytic and microelectronic applications.
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Affiliation(s)
- I. El Heda
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, Tunisia
| | - R. Dhahri
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, Tunisia
| | - J. Massoudi
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, Tunisia
| | - E. Dhahri
- Laboratoire de Physique Appliquée, Faculté des Sciences, Université de Sfax, Tunisia
| | - F. Bahri
- Laboratoire des Matériaux pour l’Energie et l’Environnement, et Modélisation (LMEEM), Faculté des Sciences, Université de Sfax, Tunisia
| | - K. khirouni
- Laboratory of Physics of Materials and Nanomaterials Applied to the Environment, Faculty of Sciences, University of Gabès, Tunisia
| | - B.F.O. Costa
- University of Coimbra, CFisUC, Physics Department, P-3004-516, Coimbra, Portugal
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Cai C, Liu Y, Xu R, Zhou J, Zhang J, Chen Y, Liu L, Zhang L, Kang S, Xie X. Bicarbonate enhanced heterogeneous activation of peroxymonosulfate by copper ferrite nanoparticles for the efficient degradation of refractory organic contaminants in water. Chemosphere 2023; 312:137285. [PMID: 36403810 DOI: 10.1016/j.chemosphere.2022.137285] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 06/16/2023]
Abstract
Nowadays, the treatment of residual refractory organic contaminants (ROCs) is a huge challenge for environmental remediation. In this study, a potential process is provided by copper ferrite catalyst (CuFe2O4) activated peroxymonosulfate (PMS, HSO5-) in the bicarbonate (HCO3-) enhanced system for efficient removal of Acid Orange 7 (AO7), 2,4-dichlorophenol, phenol and methyl orange (MO) in water. The impact of key reaction parameters, water quality components, main reactive oxygen species (ROS), probable degradation mechanism, rational degradation pathways and catalyst stability were systematically investigated. A 95.0% AO7 (C0 = 100 mg L-1) removal was achieved at initial pH (pH0) of 5.9 ± 0.1 (natural pH), CuFe2O4 dosage of 0.15 g L-1, PMS concentration of 0.98 mM, HCO3- concentration of 2 mM, and reaction time of 30 min. Both sulfate radical (SO4-•) and hydroxyl radical (•OH) on the surface of catalyst were proved as the predominant radical species through radical quenching experiments and electron paramagnetic resonance (EPR) analysis. The buffer nature of HCO3- was partially contributed for the enhanced degradation of AO7 under CuFe2O4/PMS/HCO3- system. Importantly, according to 13C nuclear magnetic resonance (NMR) and EPR analysis, the positive effect of bicarbonate may be mainly attributed to the formation of peroxymonocarbonate (HCO4-), which may enhance the generation of •OH. The magnetic CuFe2O4 particles can be well recycled and the leaching concentration of Cu was acceptable (<1 mg L-1). Considering the widespread presence of bicarbonate in water environment, this work may provide a safe, efficient, and sustainable technique for the elimination of ROCs from practical complex wastewater.
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Affiliation(s)
- Chun Cai
- Department of Environmental Science and Engineering, Hubei Water Systematic Pollution Control and Remediation Technology Engineering Center, China University of Geosciences, Wuhan, 430074, China.
| | - Yangfan Liu
- Department of Environmental Science and Engineering, Hubei Water Systematic Pollution Control and Remediation Technology Engineering Center, China University of Geosciences, Wuhan, 430074, China
| | - Rui Xu
- Department of Environmental Science and Engineering, Hubei Water Systematic Pollution Control and Remediation Technology Engineering Center, China University of Geosciences, Wuhan, 430074, China
| | - Jiaheng Zhou
- Department of Environmental Science and Engineering, Hubei Water Systematic Pollution Control and Remediation Technology Engineering Center, China University of Geosciences, Wuhan, 430074, China
| | - Jin Zhang
- Department of Environmental Science and Engineering, Hubei Water Systematic Pollution Control and Remediation Technology Engineering Center, China University of Geosciences, Wuhan, 430074, China
| | - Yu Chen
- Department of Environmental Science and Engineering, Hubei Water Systematic Pollution Control and Remediation Technology Engineering Center, China University of Geosciences, Wuhan, 430074, China
| | - Lingyu Liu
- Department of Environmental Science and Engineering, Hubei Water Systematic Pollution Control and Remediation Technology Engineering Center, China University of Geosciences, Wuhan, 430074, China
| | - Lexiang Zhang
- Department of Environmental Science and Engineering, Hubei Water Systematic Pollution Control and Remediation Technology Engineering Center, China University of Geosciences, Wuhan, 430074, China
| | - Shuping Kang
- Department of Environmental Science and Engineering, Hubei Water Systematic Pollution Control and Remediation Technology Engineering Center, China University of Geosciences, Wuhan, 430074, China
| | - Xianjun Xie
- Department of Environmental Science and Engineering, Hubei Water Systematic Pollution Control and Remediation Technology Engineering Center, China University of Geosciences, Wuhan, 430074, China.
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Khan Z, Ali F, Said A, Arif U, Khan K, Ali N, Shabir G, Iqbal HMN, Bilal M. Polyethylene glycol capped copper ferrite porous nanostructured materials for efficient photocatalytic degradation of bromophenol blue. Environ Res 2022; 215:114148. [PMID: 35995231 DOI: 10.1016/j.envres.2022.114148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 05/25/2022] [Accepted: 08/16/2022] [Indexed: 06/15/2023]
Abstract
Three different types (blank, annealed, and functionalized) of copper ferrite nanoparticles (CuFe2O4) were synthesized by the co-precipitation method. The CuFe2O4 NPs were characterized by Fourier transform infrared (FTIR), Scanning electron microscopy (SEM), X-ray diffraction (XRD), and Energy-dispersive X-ray spectroscopy (EDX) techniques. FTIR analysis confirmed that 3-APTES is successfully grafted on the surface of CuFe2O4 NPs. XRD results show the amorphous nature of blank CuFe2O4 NPs, and crystalline structure was observed for annealed and functionalized CuFe2O4 NPs. XRD results revealed that crystallite size ranges from 23.6 to 34.6 nm. SEM micrographs of blank CuFe2O4 NPs show the irregular shape and size of the nanostructure. The spherical and strongly linked structure was seen in the micrograph of functionalized CuFe2O4 NPs. EDX analysis revealed the nanostructure composed of Fe, Cu, O, and a small percentage of Si. The photocatalytic degradation efficiency of synthesized CuFe2O4 NPs was examined under UV irradiation in an aqueous medium against bromophenol blue (BPB) dye. The effect of different parameters such as irradiation time and pH on the photodegradation of BPB dye was studied by all three types of CuFe2O4 photocatalyst. Results show that the maximum photocatalytic degradation efficiency was observed for functionalized CuFe2O4 nanoparticles that degraded 98% of BPB dye in the acidic medium at pH = 1. The optimum contact time for dye degradation was 120 min by synthesized photocatalyst. Photodegradation performance of blank and annealed CuFe2O4 NPs is less than 90%. The synthesized CuFe2O4 NPs were recycled and reused, which shows good photocatalytic degradation efficiency up to 4 consecutive cycles. The kinetic model displayed that degradation reaction followed pseudo 1st order kinetics. The blank, annealed, and functionalized CuFe2O4 NPs have turnover numbers of 10.7x10 (Mudhoo et al., 2019), 12.9x10 (Mudhoo et al., 2019), and 22.2x10 (Mudhoo et al., 2019) (kg-1 sec-1) accordingly. In conclusion, all results revealed the high efficiency of prepared photocatalyst for tested hazardous dye from wastewater and encouraged more work on photodegradation of organic pollutants from wastewater.
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Affiliation(s)
- Zubaria Khan
- Department of Chemistry, Hazara University, Mansehra KPK, 21300, Pakistan
| | - Farman Ali
- Department of Chemistry, Hazara University, Mansehra KPK, 21300, Pakistan.
| | - Amir Said
- Department of Chemistry, Hazara University, Mansehra KPK, 21300, Pakistan
| | - Umar Arif
- Department of Chemistry, Hazara University, Mansehra KPK, 21300, Pakistan
| | - Komal Khan
- Department of Chemistry, Hazara University, Mansehra KPK, 21300, Pakistan
| | - Nisar Ali
- National & Local Joint Engineering Research Center for Mineral Salt Deep Utilization, Huaiyin Institute of Technology, Huaian, 223003, China
| | - Ghulam Shabir
- Department of Chemistry, Quaid-I-Azam University, Islamabad, 45320, Pakistan
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey, 64849, Mexico
| | - Muhammad Bilal
- Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Berdychowo 4, PL-60695, Poznan, Poland.
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Xu J, He J, Zhu L, Guo S, Chen H. A novel utilization of raw sepiolite: preparation of magnetic adsorbent directly based on sol-gel for adsorption of Pb(II). Environ Sci Pollut Res Int 2022; 29:77448-77461. [PMID: 35676581 DOI: 10.1007/s11356-022-21182-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 05/25/2022] [Indexed: 06/15/2023]
Abstract
The constraints of industrial separation technology for low grade sepiolite greatly limit the development and utilization of these potential resources. In this work, a novel sepiolite adsorbent loaded with copper ferrite was prepared by sol-gel method to remove Pb(II) from wastewater. The effects of various factors on Pb(II) removal ratio were investigated. The maximum adsorption capacities at 293, 313, and 333 K were 1285.32, 1325.45, and 1390.54 mg/g, respectively. The adsorption of Pb(II) by magnetic sepiolite was a spontaneous endothermic process. Besides, the adsorption process followed Langmuir isothermal adsorption model and pseudo-second-order kinetic model. The main adsorption mechanism of Pb(II) removal was electrostatic attraction, ion exchange, and surface complexation. The improvement of Pb(II) absorption indicated that the efficient removal of Pb(II) can be realized by phosphate groups introduced in the preparation process and the carbonate groups contained in gangue minerals.
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Affiliation(s)
- Jiang Xu
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, 221116, China
| | - Jingfeng He
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China.
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, 221116, China.
| | - Lingtao Zhu
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, 221116, China
| | - Shulian Guo
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, 221116, China
| | - Hao Chen
- School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 221116, China
- Key Laboratory of Coal Processing and Efficient Utilization of Ministry of Education, China University of Mining and Technology, Xuzhou, 221116, China
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10
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Liu B, Xu J, Wan Z, Shu R. Fabrication of nitrogen-doped reduced graphene oxide/hollow copper ferrite composite aerogels as lightweight, thin and high-efficiency electromagnetic wave absorbers in the X band. J Colloid Interface Sci 2022; 628:712-720. [PMID: 36027781 DOI: 10.1016/j.jcis.2022.08.112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/12/2022] [Accepted: 08/16/2022] [Indexed: 01/02/2023]
Abstract
The development of lightweight, thin and high-efficiency electromagnetic (EM) wave absorbers remains a huge challenge in the field of EM absorption. Graphene aerogels with three-dimensional (3D) network structure and low bulk density have been considered as potential EM absorbing materials. In this work, nitrogen-doped reduced graphene oxide/hollow copper ferrite (NRGO/hollow CuFe2O4) composite aerogels were fabricated by the three-step method of solvothermal reaction, hydrothermal self-assembly and calcination treatment. The as-prepared composite aerogels had a unique 3D hierarchical porous network structure. Furthermore, results demonstrated that the EM absorption performance of attained composite aerogels could be improved by adjusting the calcination temperature. Notably, the obtained composite aerogel calcined at 400.0 ℃ exhibited the best EM absorption performance. When the loading ratio was as low as 15.0 wt%, the minimum reflection loss reached up to -54.5 dB with a matching thickness of 2.0 mm, and the maximum effective absorption bandwidth of 5.0 GHz could be achieved under an extremely thin thickness of 1.6 mm. Additionally, the probable EM attenuation mechanisms of attained composite aerogels were proposed. The results of this work could be helpful for developing graphene-based 3D composites as lightweight, thin and high-efficiency EM wave absorbers.
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Affiliation(s)
- Baohua Liu
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China; School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Jing Xu
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China; School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Zongli Wan
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Ruiwen Shu
- State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China; School of Chemical Engineering, Anhui University of Science and Technology, Huainan 232001, China; Institute of Environment-friendly Materials and Occupational Health, Anhui University of Science and Technology, Wuhu 241003, China.
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11
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Sun Q, Wang X, Liu Y, Xia S, Zhao J. Activation of peroxymonosulfate by a floating oxygen vacancies - CuFe 2O 4 photocatalyst under visible light for efficient degradation of sulfamethazine. Sci Total Environ 2022; 824:153630. [PMID: 35176364 DOI: 10.1016/j.scitotenv.2022.153630] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 01/18/2022] [Accepted: 01/29/2022] [Indexed: 06/14/2023]
Abstract
In this study, expanded perlite supported oxygen vacancies-CuFe2O4 (OVs-CFEp) was synthesized via a simple method and utilized as floating catalyst to activate peroxymonosulfate (PMS) for the removal of sulfamethazine (SMT) under visible light irradiation. OVs-CFEp/Vis/PMS synergy presents much superior performance than that of OVs-CFEp/Vis system and OVs-CFEp/PMS system. PMS was efficiently activated by OVs-CFEp at a wide range of pH values, while the degrading rate of SMT was up to 95% in OVs-CFEp/Vis/PMS system. Oxygen vacancies and ·O2- accelerated the conversion of Fe(III)/Fe(II) and Cu(I)/Cu(II). The combination of the floating loader boosted light absorption capacity and sufficiently prevented metal ions leaching, which was all beneficial to enhance catalytic performance and recyclability. Besides, the reactive oxygen species were investigated systematically, proving that visible light and OVs-CFEp could activate PMS to produce ·SO4-, ·OH, O2·-, and 1O2 reactive species. Furthermore, based on intermediates identification and Density Functional Theory (DFT) calculation, three types and seven main degradation pathways involving cleavage of bond, SMT molecular rearrangement, and hydroxylation reaction were proposed. So this high photo-absorbing catalyst coupling with advanced oxidation progress was promising for extensive environmental remediation.
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Affiliation(s)
- Qiunan Sun
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China
| | - Xuejiang Wang
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China.
| | - Yiyang Liu
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China
| | - Siqing Xia
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China
| | - Jianfu Zhao
- State Key Laboratory of Pollution Control and Resource Reuse, College of Environmental Science and Engineering, Tongji University, Shanghai 200092, PR China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, PR China.
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12
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Wang L, Ma X, Huang G, Lian R, Huang J, She H, Wang Q. Construction of ternary CuO/CuFe 2O 4/g-C 3N 4 composite and its enhanced photocatalytic degradation of tetracycline hydrochloride with persulfate under simulated sunlight. J Environ Sci (China) 2022; 112:59-70. [PMID: 34955223 DOI: 10.1016/j.jes.2021.04.026] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/23/2021] [Accepted: 04/25/2021] [Indexed: 06/14/2023]
Abstract
In this study, a graphitic carbon nitride (g-C3N4) based ternary catalyst CuO/CuFe2O4/g-C3N4 (CCCN) is successfully prepared thorough calcination method. After confirming the structure and composition of CCCN, the as-synthesized composites are utilized to activate persulfate (PS) for the degradation of organic contaminant. While using tetracycline hydrochloride (TC) as pollutant surrogate, the effects of initial pH, PS and catalyst concentration on the degradation rate are systematically studied. Under the optimized reaction condition, CCCN/PS is able to give 99% degradation extent and 74% chemical oxygen demand removal in assistance of simulated solar light, both of which are apparently greater than that of either CuO/CuFe2O4 and pristine g-C3N4. The great improvement in degradation can be assignable to the effective separation of photoinduced carriers thanks to the integration between CuO/CuFe2O4 and g-C3N4, as well as the increased reaction sites given by the g-C3N4 substrate. Moreover, the scavenging trials imply that the major oxidative matters involved in the decomposition are hydroxyl radicals (•OH), superoxide radicals (•O2-) and photo-induced holes (h+).
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Affiliation(s)
- Lei Wang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Xiaolei Ma
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Guofang Huang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Rui Lian
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Jingwei Huang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Houde She
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Qizhao Wang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China; School of Environmental Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecological Effects in Arid Region of Ministry of Education, Chang'an University, Xi'an 710054, China.
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13
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Liu Q, Xie H, Liu J, Kong J, Zhang X. A novel electrochemical biosensor for lung cancer-related gene detection based on copper ferrite-enhanced photoinitiated chain-growth amplification. Anal Chim Acta 2021; 1179:338843. [PMID: 34535265 DOI: 10.1016/j.aca.2021.338843] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Revised: 06/21/2021] [Accepted: 06/27/2021] [Indexed: 10/20/2022]
Abstract
We reported an electrochemical biosensor via CuFe2O4-enhanced photoinitiated chain-growth polymerization for ultrasensitive detection of lung cancer-related gene. In this work, photoinitiated atom transfer radical polymerization (ATRP) was applied to amplify the electrochemical signal corresponding to lung cancer-related gene, and polymerization was triggered off under the illumination of blue light which was involved in copper-mediated reductive quenching cycle. At the same time, CuFe2O4-H2O2 system was also activated to enhance polymerization based on the photocatalysis of CuFe2O4, which was based on the reaction between •OH and methacrylic monomers to generate carbon-based radicals. Numerous ferrocene-based polymer was graft onto electrode surface through this amplification stages. The limit of detection was low to 1.98 aM (in 10 μL, ∼11.9 molecules) (R2 = 0.998) with a wide linear range from 0.1 fM to 10 pM. This strategy made a good trade-off between cost-effectiveness and sensitivity, and it also presented a high selectivity and anti-interference. In addition, the operation was greatly simplified and detection time was also shortened, which endowed this electrochemical DNA biosensor great application potential.
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Affiliation(s)
- Qianrui Liu
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China
| | - Huifang Xie
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China
| | - Jingliang Liu
- School of Environmental Science, Nanjing XiaoZhuang University, Nanjing, Jiangsu, 211171, PR China
| | - Jinming Kong
- School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, PR China.
| | - Xueji Zhang
- School of Biomedical Engineering, Shenzhen University Health Science Center, Shenzhen, Guangdong, 518060, PR China
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14
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Thatikayala D, Min B. Copper ferrite supported reduced graphene oxide as cathode materials to enhance microbial electrosynthesis of volatile fatty acids from CO 2. Sci Total Environ 2021; 768:144477. [PMID: 33736314 DOI: 10.1016/j.scitotenv.2020.144477] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/23/2020] [Accepted: 12/09/2020] [Indexed: 06/12/2023]
Abstract
Copper ferrite/reduced graphene oxide (CF/rGO) nanocomposites (NCs) was synthesized using the bio-combustion method and applied as a cathode catalyst in the microbial reduction of CO2 to volatile fatty acids (VFAs) in a single chamber microbial electrosynthesis system (MES). The synthesized NCs exhibited a porous network-like structure with a high surface area of CF/rGO (158.22 m2/g), which was 2.24 folds higher than that of CF. The Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) analysis for CF/rGO/Carbon cloth (Cc) revealed a high reduction current density of -7.3 A/m2 and a low charge transfer resistance of 2.8 Ω. The isobutyrate and acetate in MES-2 (Cu/rGO/Cc) were produced at 35.37 g/m2/d, which was 1.53 folds higher than that of MES-1 (bare Cc: 23.10 g/m2/d). The columbic efficiency (77.78%) and total VFA concentration (1941.13 ± 83 mg COD/L) were noted to be 1.97 and 1.6 folds higher for MES-2 than MES-1, respectively. The Tafel plot drawn from the CV curves exhibited an exchange current density value of MES-2 that was 3.46 A/m2, and this value was 1.19 and 33.92 folds higher than that of MES-1 and abiotic CF/rGO/Cc, respectively. Field emission scanning electron microscopy (FESEM) observations revealed enhanced rod-shaped bacteria had grown on the cathode suggesting excellent biocompatible and multi-length scale porosity of CF/rGO catalysts for enhanced colonization of microbes. The phyla Proteobacteria (Betaproteobacteria), Bacteroidetes, and Firmicutes were highly abundant as the dominant microbial communities on the cathode, which might played a major role in bioelectrochemical CO2 reduction to VFAs. The results from this study clearly demonstrate that the CF/rGO/Cc electrode could serve as a conductive element between microbes and bactericidal electrodes with excellent electrochemical properties to enable performance of the MES.
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Affiliation(s)
- Dayakar Thatikayala
- Department of Environment Science and Engineering, Kyung Hee University, Yongin, Republic of Korea
| | - Booki Min
- Department of Environment Science and Engineering, Kyung Hee University, Yongin, Republic of Korea.
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15
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Yang Y, Liu J, Wang Z, Ding J, Yu Y. Charge-distribution modulation of copper ferrite spinel-type catalysts for highly efficient Hg 0 oxidation. J Hazard Mater 2021; 402:123576. [PMID: 33254744 DOI: 10.1016/j.jhazmat.2020.123576] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 07/20/2020] [Accepted: 07/21/2020] [Indexed: 06/12/2023]
Abstract
Hg0 catalytic oxidation is an attractive approach to reduce mercury emissions from industrial activities. However, the rational design of highly active catalysts remains a significant challenge. Herein, the charge distribution modulation strategy was proposed to design novel catalysts: copper ferrite spinel-type catalysts were developed by introducing Cu2+ cations into octahedral sites to form electron-transfer environment. The synthesized catalysts with spinel-type stoichiometry showed superior catalytic performance, and achieved > 90 % Hg0 oxidation efficiency in a wide operation temperature window of 150-300 °C. The superior catalytic performance was closely associated with the mobile-electron environment of copper ferrite. Hg0 oxidation by HCl over copper ferrite followed the Eley-Rideal mechanism, in which physically adsorbed Hg0 reacted with active chlorine species. Density functional theory calculations revealed that octahedral Cu atom is the most active site of Hg0 adsorption on copper ferrite surface. Both direct oxidation pathway (Hg* → HgCl2*) and HgCl-mediated oxidation pathway (Hg* → HgCl* → HgCl2*) played important role in Hg0 oxidation over copper ferrite. HgCl2* formation was identified as the rate-limiting step of Hg0 oxidation. This work would provide a new perspective for the development of admirable catalysts with outstanding Hg0 oxidation performance.
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Affiliation(s)
- Yingju Yang
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Jing Liu
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
| | - Zhen Wang
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Junyan Ding
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yingni Yu
- State Key Laboratory of Coal Combustion, School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
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16
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Zhao Y, Song M, Cao Q, Sun P, Chen Y, Meng F. The superoxide radicals' production via persulfate activated with CuFe 2O 4@Biochar composites to promote the redox pairs cycling for efficient degradation of o-nitrochlorobenzene in soil. J Hazard Mater 2020; 400:122887. [PMID: 32947726 DOI: 10.1016/j.jhazmat.2020.122887] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 04/19/2020] [Accepted: 04/22/2020] [Indexed: 06/11/2023]
Abstract
CuFe2O4 nanoparticles are decorated on biochar (BC) by modified sol-gel method to form the CuFe2O4@BC catalyst for persulfate (PS) activation in a wide pH range. The application of CuFe2O4@BC for o-nitrochlorobenzene degradation in soil was explored in this study. The mechanism of heterogeneous PS activation was comprehensively investigated. The synergistic effects between CuFe2O4 and BC could enhance catalytic activity and stability, including well dispersed CuFe2O4 species, efficient electron transfer and abundant oxygen functional groups. The superoxide radicals (O2-) produced from CuFe2O4 and BC could mediate Cu(I)/Cu(II) and Fe(II)/Fe(III) redox pairs on CuFe2O4@BC surface to activate PS, and then generating •OH and SO4- continuously. Moreover, the reaction intermediates are identified as well to elucidate the possible degradation pathways. These findings help to achieve more comprehensive understanding of the heterogeneous activation process of PS by CuFe2O4@BC catalyst.
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Affiliation(s)
- Yan Zhao
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Min Song
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China.
| | - Qi Cao
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Peizhe Sun
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China
| | - Yonghao Chen
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
| | - Fanyue Meng
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, China
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17
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Tamaddon F, Nasiri A, Yazdanpanah G. Photocatalytic degradation of ciprofloxacin using CuFe 2O 4@methyl cellulose based magnetic nanobiocomposite. MethodsX 2019; 7:74-81. [PMID: 31908987 PMCID: PMC6938894 DOI: 10.1016/j.mex.2019.12.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 12/03/2019] [Indexed: 12/23/2022] Open
Abstract
Herein, magnetically separable CuFe2O4@methyl cellulose (MC) as a novel magnetic nanobiocomposite photocatalyst was synthesized with a facile, rapid, green, and new microwave-assisted method. After that, CuFe2O4@MC was characterized with FESEM, EDS, FT-IR, XRD, TGA, and VSM techniques. To measure CuFe2O4@MC photocatalytic activity, ciprofloxacin (CIP) removal ability of CuFe2O4@MC was investigated under the conditions such as initial CIP concentrations (3, 5, 7, and 9 mg/L), pHs (3, 7, and 11), photocatalyst loadings (0.025, 0.05, 0.1, 0.2, 0.3, and 0.4 g), and irradiation time (15, 30, 45, 60, 75, and 90 min). Kinetic process was evaluated with the pseudo-first order and the Langmuir-Hinshelwood models. CIP concentration was measured with high performance liquid chromatography (HPLC). The maximum CIP removal efficiency in the optimal conditions which contained pH = 7, CIP initial concentration of 3 mg/L, photocatalyst loading of 0.2 g, and at irradiation time 90 min was achieved 72.87 % and 80.74 % from real and synthetic samples, respectively. Also, COD removal efficiency in the optimal conditions was achieved 68.26 %. Furthermore, the CuFe2O4@MC reusability and chemical stability were examined and 73.78 % of CIP was degraded after the fourth cycle. Advantages of this technique were as follows: CuFe2O4@MC as a new nanobiomagnetic photocatalyst was synthesized with a facile, fast, and green method and were characterized with FESEM, EDS, FT-IR, XRD, TGA, and VSM techniques. Ferromagnetic property and pure-phase spinel ferrites of CuFe2O4@MC were confirmed and significant photocatalytic activity of CuFe2O4@MC was observed. Easily gathering, reusability and good chemical stability were interests of this nanobiomagnetic photocatalyst.
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Affiliation(s)
- Fatemeh Tamaddon
- Department of Chemistry, Faculty of Science, Yazd University, Yazd 89195-741, Iran
| | - Alireza Nasiri
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran
| | - Ghazal Yazdanpanah
- Environmental Health Engineering Research Center, Kerman University of Medical Sciences, Kerman, Iran
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18
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Yao T, Qi Y, Mei Y, Yang Y, Aleisa R, Tong X, Wu J. One-step preparation of reduced graphene oxide aerogel loaded with mesoporous copper ferrite nanocubes: A highly efficient catalyst in microwave-assisted Fenton reaction. J Hazard Mater 2019; 378:120712. [PMID: 31203127 DOI: 10.1016/j.jhazmat.2019.05.105] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/14/2019] [Accepted: 05/30/2019] [Indexed: 06/09/2023]
Abstract
Heterogeneous Fenton reaction is an attractive method for degradation of organic pollutants due to its high efficiency and non-selectivity and it also causes no secondary pollution. However, low degradation rate and poor recyclability of the catalysts limit its applications for water purification. To overcome this, herein, copper ferrite/reduced graphene oxide (CF/rGO) aerogel was prepared by a one-step hydrothermal method, as a highly efficient catalyst for the microwave-assisted Fenton reaction (MAFR). Under optimal conditions (500 W of microwave power, 600 μL of H2O2, 15 mg of catalyst, and 30 mg/L of RhB), the degradation efficiency of CF/rGO aerogel at 1.0 min (95.7%) was higher than that of reference samples at 3.0 min. Thermodynamical study showed the activation energy, enthalpy change, entropy change, and Gibbs free energy change were 0.73 kJ/mol, -49.5 kJ/mol, -0.135 kJ/mol·K, and -6.8 kJ/mol, respectively, indicating that MAFR was an endothermic and non-spontaneous process.Radical trapping experiments showed that OH, O2-, and h+ played a combined role in RhB degradation. Besides high catalytic activity, CF/rGO aerogel also displayed good reusability, showing removal efficiency of 87.4% after 5 cycles. The high efficiency, good reusability, and simple process make CF/rGO aerogel a promising catalyst for wastewater treatment.
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Affiliation(s)
- Tongjie Yao
- MIIT Key Lab of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.
| | - Yi Qi
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yuqing Mei
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Yang Yang
- MIIT Key Lab of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China
| | - Rashed Aleisa
- Department of Chemistry, University of California, Riverside, CA, 92521, USA
| | - Xin Tong
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China
| | - Jie Wu
- Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education, School of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, China.
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19
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Chen Y, Wu Q, Wang J, Song Y. Visible-light-driven elimination of oxytetracycline and Escherichia coli using magnetic La-doped TiO 2/ copper ferrite/diatomite composite. Environ Sci Pollut Res Int 2019; 26:26593-26604. [PMID: 31292873 DOI: 10.1007/s11356-019-05873-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 06/28/2019] [Indexed: 06/09/2023]
Abstract
The development of powdery photocatalyst has long been studied, yet the low recovery in water is still its bottleneck. In this work, magnetic recyclable lanthanum-doped TiO2/copper ferrite/diatomite (La-TCD) ternary composite was synthesized via sol-gel method. The physicochemical properties of various hybrid catalysts were characterized and studied, and their photocatalytic properties were evaluated via the decomposition of antibiotic oxytetracycline and disinfection of bacteria Escherichia coli under visible light. The formation of heterojunction between La-doped TiO2 and copper ferrite hindered the recombination of photo-induced charge carriers and improved the photocatalytic activity. The photodecomposition rate of OTC was accelerated by the high adsorption ability of diatomite, due to the adsorption and decomposition synergistic effect between catalysts and substrate diatomite. The optimal La dopant amount as well as optimal catalyst dosage was determined. The composite could simply be recovered from waterbody via an external magnet, and the repetition tests indicated no obvious decrease of photoactivity. This nanocomposite presented good potential to be applied in environmental remediation process, due to its high photocatalytic efficiency under visible light, as well as its good reusability and stability.
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Affiliation(s)
- Yan Chen
- College of Environment, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Qiong Wu
- College of Environment, Liaoning University, Shenyang, 110036, People's Republic of China
| | - Jun Wang
- College of Chemistry, Liaoning University, Shenyang, 110036, People's Republic of China.
| | - Youtao Song
- College of Environment, Liaoning University, Shenyang, 110036, People's Republic of China.
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20
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Gu W, Li X, Xing M, Fang W, Wu D. Removal of phosphate from water by amine-functionalized copper ferrite chelated with La(III). Sci Total Environ 2018; 619-620:42-48. [PMID: 29136533 DOI: 10.1016/j.scitotenv.2017.11.098] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2017] [Revised: 11/07/2017] [Accepted: 11/08/2017] [Indexed: 06/07/2023]
Abstract
Eutrophication has become a worldwide environmental problem and removing phosphorus from water/wastewater before discharge is essential. The purpose of our present study was to develop an efficient material in terms of both phosphate adsorption capacity and magnetic separability. To this end, we first compared the performances of four spinel ferrites, including magnesium, zinc, nickel and copper ferrites. Then we developed a copper ferrite-based novel magnetic adsorbent, by synthesizing 1,6-hexamethylenediamine-functionalized copper ferrite(CuFe2O4) via a single solvothermal synthesis process followed by LaCl3 treatment. The materials were characterized with X-ray diffraction, transmission electron microscope, vibrating sample magnetometer, Fourier transform infrared spectra and N2 adsorption-desorption. The maximum adsorption capacity of our material, calculated from the Langmuir adsorption isotherm model, attained 32.59mg/g with a saturation magnetization of 31.32emu/g. Data of adsorption kinetics were fitted well to the psuedo-second-order model. Effects of solution pH and coexisting anions (Cl-, NO3-, SO42-) on phosphate adsorption were also investigated, showing that our material had good selectivity for phosphate. But OH- competed efficiently with phosphate for adsorption sites. Furthermore, increasing both NaOH concentration and temperature resulted in an enhancement of desorption efficiency. Thus NaOH solution could be used to desorb phosphate adsorbed on the material for reuse, by adopting a high NaOH concentration and/or a high temperature.
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Affiliation(s)
- Wei Gu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Rd., Shanghai 200240, China
| | - Xiaodi Li
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Rd., Shanghai 200240, China
| | - Mingchao Xing
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Rd., Shanghai 200240, China
| | - Wenkan Fang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Rd., Shanghai 200240, China
| | - Deyi Wu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, No. 800, Dongchuan Rd., Shanghai 200240, China.
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21
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Guan YH, Ma J, Ren YM, Liu YL, Xiao JY, Lin LQ, Zhang C. Efficient degradation of atrazine by magnetic porous copper ferrite catalyzed peroxymonosulfate oxidation via the formation of hydroxyl and sulfate radicals. Water Res 2013; 47:5431-5438. [PMID: 23916710 DOI: 10.1016/j.watres.2013.06.023] [Citation(s) in RCA: 409] [Impact Index Per Article: 37.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2013] [Revised: 06/06/2013] [Accepted: 06/12/2013] [Indexed: 06/02/2023]
Abstract
Magnetic porous copper ferrite (CuFe2O4) showed a notable catalytic activity to peroxymonosulfate (PMS). More than 98% of atrazine was degraded within 15 min at 1 mM PMS and 0.1 g/L CuFe2O4. In contrast, CuFe2O4 exhibited no obvious catalytic activity to peroxodisulfate or H2O2. Several factors affecting the catalytic performance of PMS/CuFe2O4 were investigated. Results showed that the catalytic degradation efficiency of atrazine increased with PMS and CuFe2O4 doses, but decreased with the increase of natural organic matters concentration. The catalytic oxidation also showed a dependence on initial pH. The presence of bicarbonate stimulated atrazine degradation by PMS/CuFe2O4 at low concentrations but inhibited the degradation at high concentrations. Furthermore, the reactive species for atrazine degradation in PMS/CuFe2O4 system were identified as hydroxyl radical (HO) and sulfate radical (SO4(·-)) through competition reactions of atrazine and nitrobenzene, instead of commonly used alcohol scavenging, which was not a reliable method in metal oxide catalyzed oxidation. Surface hydroxyl groups of CuFe2O4 were a critical part in radical generation and the copper on CuFe2O4 surface was an active site to catalyze PMS. The catalytic degradation of atrazine by PMS/CuFe2O4 was also effective under the background of actual waters.
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Affiliation(s)
- Ying-Hong Guan
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, People's Republic of China
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