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Yang J, Hu Z, Rao W, Xie Y, Yu C. Reusable CS-Ca@PEI/CuMnO 2 Hydrogel Beads for Peroxymonosulfate-Activated Degradation of Congo Red. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:14245-14256. [PMID: 38941474 DOI: 10.1021/acs.langmuir.4c00659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/30/2024]
Abstract
Metal oxides can activate peroxymonosulfate (PMS) for the catalytic degradation of organic dyes. However, achieving high catalytic efficiency, structural stability, ease of recovery, and recyclability remains challenging for both research and practical applications. To address these requirements, a bimetallic oxide, CuMnO2, was synthesized using a simple hydrothermal approach and was encapsulated to create hydrogel beads, CS-Ca@PEI/CuMnO2. Subsequently, CS-Ca@PEI/CuMnO2 was used to activate PMS and establish a solid-liquid heterogeneous oxidation system (CS-Ca@PEI/CuMnO2/PMS) for the degradation of Congo red (CR). The effects of various parameters such as different systems, catalyst dosages, initial pH values, PMS concentrations, temperatures, and anion types on the catalytic degradation properties of CS-Ca@PEI/CuMnO2 for CR were systematically evaluated. The results indicated that CS-Ca@PEI/CuMnO2 has exceptional degradation capacity, achieving 91.0% degradation of CR at pH 7. After three degradation cycles, the catalyst maintained an 86.9% degradation efficiency compared to its original performance, highlighting its robust structural stability. The presence of reactive radicals, specifically 1O2 and •O2-, were confirmed through quenching experiments, X-ray photoelectron spectroscopy (XPS), and electron paramagnetic resonance spectroscopy (EPR). Liquid chromatography-tandem mass spectrometry (LC-MS) revealed ten proposed intermediates in the catalytic degradation process. Due to its exceptional catalytic performance, structural durability, recyclability, and ease of retrieval, the catalyst shows great potential for effectively removing organic pollutants from industrial wastewater.
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Affiliation(s)
- Jinyan Yang
- College of Materials Science and Engineering, Guilin University of Technology (GUT), Guilin 541004, China
| | - Zhaoxing Hu
- College of Materials Science and Engineering, Guilin University of Technology (GUT), Guilin 541004, China
| | - Wenhui Rao
- College of Materials Science and Engineering, Guilin University of Technology (GUT), Guilin 541004, China
| | - Yijun Xie
- Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai 200444, China
| | - Chuanbai Yu
- College of Materials Science and Engineering, Guilin University of Technology (GUT), Guilin 541004, China
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2
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Khamis A, Mahmoud AS, El Naga AOA, Shaban SA, Youssef NA. Activation of peroxymonosulfate with ZIF-67-derived Co/N-doped porous carbon nanocubes for the degradation of Congo red dye. Sci Rep 2024; 14:12313. [PMID: 38811620 PMCID: PMC11137160 DOI: 10.1038/s41598-024-62029-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2023] [Accepted: 05/13/2024] [Indexed: 05/31/2024] Open
Abstract
In this study, porous carbon nanocubes encapsulated magnetic metallic Co nanoparticles (denoted as Co@N-PCNC) was prepared via pyrolyzing ZIF-67 nanocubes precursor at 600 °C and characterized by various technologies. It was used to activate peroxymonosulfate (PMS) to degrade Congo red (CR) dye efficiently. Over 98.45% of 50 mg L-1 CR was degraded using 0.033 mM PMS activated by 75 mg L-1 Co@N-PCNC within 12 min. The free radical quenching experiments were performed to reveal the nature of the reactive oxygen species radicals generated throughout the catalytic oxidation of CR. The effects of common inorganic anions and the water matrix on CR removal were studied. Moreover, the results of the kinetic study revealed the suitability of the pseudo-first-order and Langmuir-Hinshelwood kinetic models for illustrating CR degradation using the Co@N-PCNC/PMS system. Ultimately, the Co@N-PCNC displayed good operational stability, and after five cycles, the CR removal rate can still maintain over 90% after 12 min.
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Affiliation(s)
- Aya Khamis
- Chemistry Department, Faculty of Women, Ain Shams University, Cairo, Egypt
| | - Aya S Mahmoud
- Chemistry Department, Faculty of Women, Ain Shams University, Cairo, Egypt
| | - Ahmed O Abo El Naga
- Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt.
| | - Seham A Shaban
- Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, 11727, Cairo, Egypt.
| | - Nadia A Youssef
- Chemistry Department, Faculty of Women, Ain Shams University, Cairo, Egypt
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3
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Nandana E, Dwivedi AH, Nidheesh PV. Role of biochar in superoxide-dominated dye degradation in catalyst-activated peroxymonosulphate process. CHEMOSPHERE 2024; 356:141945. [PMID: 38599333 DOI: 10.1016/j.chemosphere.2024.141945] [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: 12/04/2023] [Revised: 03/05/2024] [Accepted: 04/06/2024] [Indexed: 04/12/2024]
Abstract
In recent times, the application of biochar (BC) as an upcoming catalyst for the elimination of recalcitrant pollutants has been widely explored. Here, an iron loaded bamboo biochar activated peroxymonosulphate (PMS) process was tested for removing Congo red (CR) dye from water medium. The catalyst was synthesized using a green synthesis method using neem extracts and characterized using SEM, FTIR, and XRD. The effects of various operating parameters, including solution pH, catalyst dosage, and pollutant dosage, on dye degradation efficiency were examined. The results showed that at the optimized conditions of 300 mg L-1 PMS concentration, 200 mg L-1 catalyst dosage, and pH 6, about 89.7% of CR dye (initial concentration 10 ppm) was removed at 60 min of operation. Scavenging experiments revealed the significant contribution of O2•-, •OH, and 1O2 for dye degradation, with a major contribution of O2•-. The activation of PMS was mainly done by biochar rather than iron (loaded on biochar). The catalyst was highly active even after four cycles.
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Affiliation(s)
- E Nandana
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440020, India; Sacred Heart College, Thevara, Kochi, 682013, India
| | - Anand Harsh Dwivedi
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440020, India
| | - P V Nidheesh
- CSIR-National Environmental Engineering Research Institute, Nagpur, 440020, India.
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Brillas E, Oliver R. Development of persulfate-based advanced oxidation processes to remove synthetic azo dyes from aqueous matrices. CHEMOSPHERE 2024; 355:141766. [PMID: 38527631 DOI: 10.1016/j.chemosphere.2024.141766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 03/27/2024]
Abstract
Azo dyes are largely used in many industries and discharged in large volumes of their effluents into the aquatic environment giving rise to non-esthetic pollution and health-risk problems. Due to the high stability of azo dyes in ambient conditions, they cannot be abated in conventional wastewater treatment plants. Over the last fifteen years, the decontamination of dyeing effluents by persulfate (PS)-based advanced oxidation processes (AOPs) has received a great attention. In these methods, PS is activated to be decomposed into sulfate radical anion (SO4•-), which is further partially hydrolyzed to hydroxyl radical (•OH). Superoxide ion (O2•-) and singlet oxygen (1O2) can also be produced as oxidants. This review summarizes the results reported for the discoloration and mineralization of synthetic and real waters contaminated with azo dyes covering up to November 2023. PS activation with iron, non-iron transition metals, and carbonaceous materials catalysts, heat, UVC light, photocatalysis, photodegradation with iron, electrochemical and related processes, microwaves, ozonation, ultrasounds, and other processes is detailed and analyzed. The principles and characteristics of each method are explained with special attention to the operating variables, the different oxidizing species generated yielding radical and non-radical mechanisms, the addition of inorganic anions and natural organic matter, the aqueous matrix, and the by-products identified. Finally, the overall loss of toxicity or partial detoxification of treated azo dye solutions during the PS-based AOPs is discussed.
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Affiliation(s)
- Enric Brillas
- Departament de Ciència de Materials i Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, 08028, Barcclona, Spain.
| | - Ramon Oliver
- Departament d'Enginyeria Químia, Universitat Politècnica de Catalunya, Avinguda Eduard Maristany16, edifici I, segona planta, Barcelona, Spain.
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Zhao J, Chen J, Wang Q, Xiong R, Ma J. Activation of periodate by biocarbon-supported multiple modified nanoscale iron for the degradation of bisphenol A in high-temperature aqueous solution. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:24263-24281. [PMID: 38436863 DOI: 10.1007/s11356-024-32483-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 02/10/2024] [Indexed: 03/05/2024]
Abstract
As reported, the persistent toxic and harmful pollutant bisphenol A (BPA) from industrial emissions has been consistently found in aquatic environments inhabited by humans. Periodate (PI)-based advanced oxidation processes (AOPs) have been employed to degrade BPA, although activating PI proves more challenging compared to other oxidants. A novel nano iron metal catalyst, sulfided nanoscale iron-nickel bimetallic nanoparticle supported on biocarbon (S-(nFe0-Ni)/BC) was synthesized and utilized to activate PI for the removal of BPA. The morphology, structure, and composition of S-(nFe0-Ni)/BC were characterized using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy-energy dispersive spectrometer (SEM-EDS), and fourier-transform infrared spectrum (FTIR). The catalyst demonstrates an excellent ability to activate PI, achieving a BPA removal efficacy of 86.4%, accompanied by a 33% reduction in total organic carbon (TOC) in the {S-(nFe0-Ni)/BC}/PI system. BPA degradation exhibited a significant change at the 5-min mark. In the first stage (0-5 min), nonlinear dynamic fitting research, combined with scavenging experiments, unveiled the competitive degradation of pollutants primarily driven by iodate radical ( IO 3 · ), singlet oxygen1 O 2 , and hydroxyl radical ( · OH ). The competitive dynamics aligned with the ExpAssoc model. The contribution rates of different active species during the second stage (5-120 min) were calculated. The contributions of main species to BPA removal follow the order of IO 3 · >1 O 2 > · OH throughout the entire process. The influence of various parameters, such as the dosage of S-(nFe0-Ni)/BC, initial PI concentration, BPA concentration, pH, temperature, and the presence of coexisting anions, was also examined. Finally, a plausible reaction mechanism in the system is proposed, suggesting that the {S-(nFe0-Ni)/BC}/PI system involves a heterogeneous synergistic reaction occurring primarily on the surface of S-(nFe0-Ni)/BC. Therefore, this study proposes a promising approach for PI-based AOPs to degrade organic pollutants, aiming to mitigate the irreversible harm caused by such pollutants to organisms and the environment.
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Affiliation(s)
- Jingnan Zhao
- The IT Electronics Eleventh Design & Research Institute Scientific and Technological Engineering Co., LTD, Chengdu, 610021, People's Republic of China
- Faculty of Geoscience and Environmental Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China
| | - Junwen Chen
- Faculty of Geoscience and Environmental Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA, 5005, Australia
| | - Qun Wang
- Faculty of Geoscience and Environmental Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China.
| | - Renxuan Xiong
- Faculty of Geoscience and Environmental Engineering, Southwest Jiaotong University, Chengdu, 610031, People's Republic of China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, People's Republic of China
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Shi G, Zeng S, Liu Y, Xiang J, Deng D, Wu C, Teng Q, Yang H. Efficient heterogeneous Fenton-like degradation of methylene blue using green synthesized yeast supported iron nanoparticles. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2023; 263:115240. [PMID: 37441945 DOI: 10.1016/j.ecoenv.2023.115240] [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: 04/05/2023] [Revised: 06/25/2023] [Accepted: 07/05/2023] [Indexed: 07/15/2023]
Abstract
To reduce the consumption of oxidant and catalyst in Fenton-like reaction and to realize the reuse of catalyst, yeast supported iron nanoparticles (nZVI@SCM) was synthesized by tobacco leaf extract and applied in the heterogeneous Fenton-like degradation of aqueous methylene blue (MB) at ambient conditions. The performance of the composite was exploited in terms of catalytic activity and factors influencing MB degradation. The surface changes of nZVI@SCM before and after reaction were characterized by XPS, SEM, FT-IR and XRD. Iron leaching, primary reactive oxidizing species, and the storage stability and reusability of catalyst were also investigated. Typically, 99.7% removal of 50 mg/L MB, with a TOC removal of 97.2%, could be achieved within 10 h by 0.1 g/L nZVI@SCM coupled with 1.0 mM H2O2. The MB degradation is in good agreement with the pseudo-first-order model, and hydroxyl radicals in the bulk solution is the main reactive oxidizing species responsible for MB degradation. Based on the identified intermediates by liquid chromatography/mass spectrometry, the possible MB degradation mechanism in the nZVI@SCM/H2O2 system is discussed. The developed high-performance nZVI@SCM catalyst strategy can provide a new route in enhancing the Fenton-like degradation of organic contaminants with less consumption of catalyst and oxidant.
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Affiliation(s)
- Guorong Shi
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China; College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.
| | - Shuangqing Zeng
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Yefeng Liu
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
| | - Jun Xiang
- Hunan Wenpu Detection Technology Research Co., Ltd, Changsha 410001, China
| | - Dale Deng
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
| | - Chenmeng Wu
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China
| | - Qian Teng
- School of Chemistry and Materials Science, Hunan Agricultural University, Changsha 410128, China
| | - Hua Yang
- School of Biological Science and Technology, Hunan Agricultural University, Changsha 410128, China.
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7
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Wang W, Lai X, Yan S, Zhu L, Yao Y, Ding L. Synergistic Treatment of Dye Wastewater by the Adsorption-Degradation of a Bifunctional Aerogel. ACTA CHIMICA SINICA 2023. [DOI: 10.6023/a23010009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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8
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Yang S, Zhang SX, Li X, Du Y, Xing Y, Xu Q, Wang Z, Li L, Zhu X. One-step pyrolysis for preparation of sulfur-doped biochar loaded with iron nanoparticles as an effective peroxymonosulfate activator for RhB degradation. NEW J CHEM 2022. [DOI: 10.1039/d1nj05834g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, sulfur-doped biochar loaded with iron nanoparticles (Fe/S-BC) was easily prepared by a one-pot pyrolysis method using anhydrous FeCl3, Na2S2O3·5H2O, and cherry stone powder as raw materials and...
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9
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Bhavya G, Belorkar SA, Mythili R, Geetha N, Shetty HS, Udikeri SS, Jogaiah S. Remediation of emerging environmental pollutants: A review based on advances in the uses of eco-friendly biofabricated nanomaterials. CHEMOSPHERE 2021; 275:129975. [PMID: 33631403 DOI: 10.1016/j.chemosphere.2021.129975] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 01/24/2021] [Accepted: 02/09/2021] [Indexed: 05/04/2023]
Abstract
The increased environmental pollutants due to anthropogenic activities are posing an adverse effects and threat on various biotic forms on the planet. Heavy metals and certain organic pollutants by their toxic persistence in the environment are regarded as significant pollutants worldwide. In recent years, pollutants exist in various forms in the environment are difficult to eliminate by traditional technologies due to various drawbacks. This has lead to shifting of research for the development of cost-effective and efficient technologies for the remediation of environmental pollutants. The adaption of adsorption phenomenon from the traditional technologies with the modification of adsorbents at nanoscale is the trended research for mitigating the environmental pollutants with petite environmental concerns. Over the past decade, the hidden potentials of biological sources for the biofabrication of nanomaterials as bequeathed rapid research for remediating the environmental pollution in a sustainable manner. The biofabricated nanomaterials possess an inimitable phenomenon such as photo and enzymatic catalysis, electrostatic interaction, surface active site interactions, etc., contributing for the detoxification of various pollutants. With this background, the current review highlights the emerging biofabricated nano-based adsorbent materials and their underlying mechanisms addressing the environmental remediation of persistent organic pollutants, heavy metal (loid)s, phytopathogens, special attention to the reduction of pathogen-derived toxins and air pollutants. Each category is illustrated with suitable examples, fundamental mechanism, and graphical representations, along with societal applications. Finally, the future and sustainable development of eco-friendly biofabricated nanomaterial-based adsorbents is discussed.
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Affiliation(s)
- Gurulingaiah Bhavya
- Nanobiotechnology Laboratory, Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru, 570 006, Karnataka, India
| | - Seema Anil Belorkar
- Microbiology and Bioinformatics Department, Bilaspur University, Bilaspur, (C.G), 495 001, India
| | - Raja Mythili
- PG & Research Department of Biotechnology, Mahendra Arts & Science College, Kalippatti, 637501, Tamil Nadu, India
| | - Nagaraja Geetha
- Nanobiotechnology Laboratory, Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru, 570 006, Karnataka, India
| | - Huntrike Shekar Shetty
- Nanobiotechnology Laboratory, Department of Studies in Biotechnology, University of Mysore, Manasagangotri, Mysuru, 570 006, Karnataka, India
| | - Shashikant S Udikeri
- Department of Agricultural Entomolgy, University of Agricultural Sciences, Dharwad, 580005, Karnataka, India
| | - Sudisha Jogaiah
- Laboratory of Plant Healthcare and Diagnostics, PG Department of Biotechnology and Microbiology, Karnataka University, Dharwad, 580 003, Karnataka, India.
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10
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Comparative Investigation of Congo Red and Direct Blue-1 Adsorption on Mycosynthesized Iron Nanoparticle. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02096-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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11
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Leonel AG, Mansur AAP, Mansur HS. Advanced Functional Nanostructures based on Magnetic Iron Oxide Nanomaterials for Water Remediation: A Review. WATER RESEARCH 2021; 190:116693. [PMID: 33302040 DOI: 10.1016/j.watres.2020.116693] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 11/10/2020] [Accepted: 11/27/2020] [Indexed: 05/24/2023]
Abstract
The fast growth of industrialization combined with the increasing population has led to an unparalleled demand for providing water in a safe, reliable, and cost-effective way, which has become one of the biggest challenges of the twenty-first century faced by global society. The application of nanotechnology in water treatment and pollution cleanup is a promising alternative in order to overcome the current limitations. In particular, the application of magnetic iron oxide nanoparticles (MIONs) for environmental remediation has currently received remarkable attention due to its unique combination of physicochemical and magnetic properties. Given the broadening use of these functional engineered nanomaterials, there is a growing concern about the adverse effects upon exposure of products and by-products to the environment. This makes vitally relevant the development of green chemistry in the synthesis processes combined with a trustworthy risk assessment of the nanotoxicity of MIONs as the scientific knowledge of the potential hazard of nanomaterials remains limited. This work provides comprehensive coverage of the recent progress on designing and developing iron oxide-based nanomaterials through a green synthesis strategy, including the use of benign solvents and ligands. Despite the limitations of nanotoxicity and environmental risks of iron oxide-based nanoparticles for the ecosystem, this critical review presents a contribution to the emerging knowledge concerning the theoretical and experimental studies on the toxicity of MIONs. Potential improvement of applications of advanced iron oxide-based hybrid nanostructures in water treatment and pollution control is also addressed in this review.
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Affiliation(s)
- Alice G Leonel
- Center of Nanoscience, Nanotechnology and Innovation - CeNano(2)I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais - UFMG, Av. Antônio Carlos, 6627 - Belo Horizonte/MG, Brazil.
| | - Alexandra A P Mansur
- Center of Nanoscience, Nanotechnology and Innovation - CeNano(2)I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais - UFMG, Av. Antônio Carlos, 6627 - Belo Horizonte/MG, Brazil.
| | - Herman S Mansur
- Center of Nanoscience, Nanotechnology and Innovation - CeNano(2)I, Department of Metallurgical and Materials Engineering, Federal University of Minas Gerais - UFMG, Av. Antônio Carlos, 6627 - Belo Horizonte/MG, Brazil.
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Aljohny BO, Ahmad Z, Shah SA, Anwar Y, Khan SA. Cellulose acetate composite films fabricated with zero‐valent iron nanoparticles and its use in the degradation of persistent organic pollutants. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5892] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Bassam Oudh Aljohny
- Department of Biological Sciences, Faculty of Science King Abdulaziz University P. O, Box 80203 Jeddah 21589 Kingdom of Saudi Arabia
| | - Zubair Ahmad
- Department of Chemistry University of Swabi Anbar Khyber Pakhtunkhwa 23561 Pakistan
| | - Sher Ali Shah
- Department of Chemistry University of Swabi Anbar Khyber Pakhtunkhwa 23561 Pakistan
| | - Yasir Anwar
- Department of Biological Sciences, Faculty of Science King Abdulaziz University P. O, Box 80203 Jeddah 21589 Kingdom of Saudi Arabia
| | - Shahid Ali Khan
- Department of Chemistry University of Swabi Anbar Khyber Pakhtunkhwa 23561 Pakistan
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13
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He S, Zhu H, Zhao H, Zhu Z. Core–shell magnetic nano-powders with an excellent decolorization effect on dye wastewater. RSC Adv 2019; 9:39945-39950. [PMID: 35541394 PMCID: PMC9076219 DOI: 10.1039/c9ra07937h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 11/19/2019] [Indexed: 11/28/2022] Open
Abstract
In recent years, zero-valent nano-iron (nZVI) has received extensive attention due to its excellent decolorization effect on dye wastewater. In this paper, zero-valent nano-iron-nickel (nZVIN) powders were prepared by a simple, efficient and non-polluting method. The powder has a unique core–shell structure and excellent oxidation resistance. Hence the problem that nZVI powders are easily oxidized and difficult to store is solved. Due to the addition of Ni, the magnetic properties of the nZVIN powders are enhanced, which facilitates the recycling of the powders using a magnetic field after sewage treatment. In the decolorization treatment of dye wastewater simulated with Congo red (CR) dye, nZVIN powders can maintain a removal rate of more than 90% for CR solutions with different pH values (7.0–11.5) and an initial dye concentration (50–200 mg L−1). The research results show that nZVIN powders have broad application prospects in the treatment of azo dye wastewater. In recent years, zero-valent nano-iron (nZVI) has received extensive attention due to its excellent decolorization effect on dye wastewater.![]()
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Affiliation(s)
- Shuai He
- College of Material Science and Engineering
- Nanchang University
- Nanchang 330031
- China
| | - Hanzhe Zhu
- Faculty of Science
- University of Alberta
- Edmonton
- Canada T6G 2G8
| | - Hui Zhao
- College of Material Science and Engineering
- Nanchang University
- Nanchang 330031
- China
- Institute of Space Science and Technology
| | - Zhenghou Zhu
- College of Material Science and Engineering
- Nanchang University
- Nanchang 330031
- China
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