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Hollanda LR, de Souza JAB, Dotto GL, Foletto EL, Chiavone-Filho O. Iron-bearing mining reject as an alternative and effective catalyst for photo-Fenton oxidation of phenol in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:21291-21301. [PMID: 38383932 DOI: 10.1007/s11356-024-32513-9] [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: 12/14/2023] [Accepted: 02/13/2024] [Indexed: 02/23/2024]
Abstract
In this work, iron-bearing mining reject was employed as an alternative and potential low-cost catalyst to degrade phenol in water by photo-Fenton strategy. Various techniques, including SEM-EDS, BET, FTIR, and XRD, were applied to evaluate the material's properties. Process parameters such as hydrogen peroxide concentration, catalyst dosage, and pH were studied to determine the optimum reaction conditions ([catalyst] = 0.75 g L-1, [H2O2] = 7.5 mM, and pH = 3). Phenol degradation and mineralization efficiencies at 180 and 300 min were 96.5 and 78%, respectively. These satisfactory results can be associated with the iron amount present in the waste sample. Furthermore, the material showed high catalytic activity and negligible iron leaching even after the fourth reuse cycle. The degradation behavior of phenol in water was well represented by a kinetic model based on the Fermi function. The iron-bearing mining reject can be considered a potential photo-Fenton catalyst for phenol degradation in wastewater.
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Affiliation(s)
- Luana Rabelo Hollanda
- Department of Chemical Engineering, Federal University of Rio Grande Do Norte, Natal, 59078-970, Brazil
| | | | - Guilherme Luiz Dotto
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil.
| | - Edson Luiz Foletto
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Osvaldo Chiavone-Filho
- Department of Chemical Engineering, Federal University of Rio Grande Do Norte, Natal, 59078-970, Brazil
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2
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Hollanda LR, de Souza JAB, Foletto EL, Dotto GL, Chiavone-Filho O. Applying bottom ash as an alternative Fenton catalyst for effective removal of phenol from aqueous environment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:120763-120774. [PMID: 37943438 DOI: 10.1007/s11356-023-30890-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 11/01/2023] [Indexed: 11/10/2023]
Abstract
In this study, coal bottom ash from a thermoelectric plant was tested as an alternative Fenton catalyst for phenol degradation in water. The effect of operating parameters such as initial pH, catalyst dosage and H2O2 concentration were evaluated. The characterization results indicated that the material has a mesoporous structure, with active species (Fe) well distributed on its surface. Under the optimal reaction conditions (6 mM H2O2, 1 g L-1 of catalyst and pH = 3), 98.7% phenol degradation efficiency was achieved in 60 min, as well as 71.6% TOC removal after 150 min. Hydroxyl radical was identified as the main oxidizing agent involved on the cleavage of the phenol molecule. After four consecutive reuse cycles, phenol degradation efficiency was around 80%, indicating good reusability and stability of the catalyst. Therefore, the obtained results demonstrated that the bottom ash presents remarkable activity for application in the Fenton reaction towards phenol degradation.
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Affiliation(s)
- Luana Rabelo Hollanda
- Department of Chemical Engineering, Federal University of Rio Grande Do Norte, Natal, 59078-970, Brazil
| | | | - Edson Luiz Foletto
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Guilherme Luiz Dotto
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil.
| | - Osvaldo Chiavone-Filho
- Department of Chemical Engineering, Federal University of Rio Grande Do Norte, Natal, 59078-970, Brazil
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3
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Grassi P, Streit AFM, Hollanda LR, Dotto GL, Foletto EL. Augmented degradation of dyed organic pollutant using Fe 2O 3 supported on char formed from poultry slaughterhouse waste. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:104056-104066. [PMID: 37698796 DOI: 10.1007/s11356-023-29783-0] [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: 04/26/2023] [Accepted: 09/04/2023] [Indexed: 09/13/2023]
Abstract
In this work, a novel support for an iron-based catalyst was prepared and employed for Ponceau 4R degradation by photo-Fenton reaction. To this, poultry waste was used for producing char, which was subsequently used to prepare the Fe2O3/Char composite. Process parameters, including catalyst dosage, pH, and hydrogen peroxide concentration, were investigated. The characterization analysis indicated that the textural properties of the composite were improved after impregnation with Fe2O3. The composite exhibited excellent catalytic activity, achieving a decolorization efficiency of 97% at 45 min and 81.06% organic carbon removal at 300 min. In addition, the material showed acceptable performance after four consecutive cycles. Furthermore, a scavenger test was performed to investigate the major reactive species involved in the Ponceau 4R oxidation, and a plausible mechanism for the respective reaction was projected. Therefore, the results of this research demonstrate that this material can be used as a potential catalyst for the abatement of dyed molecules from wastewater.
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Affiliation(s)
- Patrícia Grassi
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | | | - Luana Rabelo Hollanda
- Chemical Engineering Department, Federal University of Rio Grande Do Norte, Natal, 59078-970, Brazil
| | - Guilherme Luiz Dotto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil.
| | - Edson Luiz Foletto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
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Ha NM, Huong TT, The Son N. Synthesis of the MnO 2-Fe 3O 4 catalyst support on amorphous silica: a new Fenton's reagent in the degradation of the reactive blue-19 in aqueous solution. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2023; 58:506-514. [PMID: 37024787 DOI: 10.1080/10934529.2023.2198477] [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: 12/28/2022] [Revised: 03/20/2023] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
In this study, a new Fenton's reagent was synthesized via two steps: (1) the dispersed Fe3O4 nanoparticles were immobilized on the surface of the SiO2 carrier via the precipitation process, and (2) the MnO2 nano-sheets were coated on the surface of Fe3O4/SiO2 via hydrothermal method. The SiO2 carrier has been synthetically utilized from Vietnamese rice husk. The successful formation of the MnO2-Fe3O4/SiO2 composite has been analytically characterized by the XRD (X-ray diffraction), SEM (scanning electron microscope), EDS (energy dispersive spectrometry)-mapping, FTIR (Fourier transform infrared), SBET (Brunauer-Emmett-Teller specific surface area), and adsorption/desorption isotherms. This Fenton system was employed to catalyze degradation process of the reactive-blue 19 (RB19) with approximately 100% of removal efficiency after 25 min at the optimal condition of 0.15 g/100 mL of catalyst dosage, pH = 3, and the H2O2 concentration of 3 mL/100 mL. Moreover, the catalyst could be reused at least six times with high catalytic activity that was more than 90%. In conclusion, this study showed that the mesoporous MnO2-Fe3O4/SiO2 composite has a great potential for the removal application of dyes from wastewater, and the application of Vietnam rice husk in environmental treatment was developed.
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Affiliation(s)
- Nguyen Manh Ha
- Faculty of Chemical Technology, Hanoi University of Industry, Hanoi, Vietnam
| | - Tran Thi Huong
- Institute of Materials Science, Vietnam Academy of Science and Technology (VAST), Hanoi, Vietnam
| | - Ninh The Son
- Institute of Chemistry, VAST, Hanoi, Vietnam
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam
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5
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Fenton Reaction–Unique but Still Mysterious. Processes (Basel) 2023. [DOI: 10.3390/pr11020432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
This study is devoted to the Fenton reaction, which, despite hundreds of reports in a number of scientific journals, provides opportunities for further investigation of its use as a method of advanced oxidation of organic macro- and micropollutants in its diverse variations and hybrid systems. It transpires that, for example, the choice of the concentrations and ratios of basic chemical substances, i.e., hydrogen peroxide and catalysts based on the Fe2+ ion or other transition metals in homogeneous and heterogeneous arrangements for reactions with various pollutants, is for now the result of the experimental determination of rather randomly selected quantities, requiring further optimizations. The research to date also shows the indispensability of the Fenton reaction related to environmental issues, as it represents the pillar of all advanced oxidation processes, regarding the idea of oxidative hydroxide radicals. This study tries to summarize not only the current knowledge of the Fenton process and identify its advantages, but also the problems that need to be solved. Based on these findings, we identified the necessary steps affecting its further development that need to be resolved and should be the focus of further research related to the Fenton process.
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Peramune D, Manatunga DC, Dassanayake RS, Premalal V, Liyanage RN, Gunathilake C, Abidi N. Recent advances in biopolymer-based advanced oxidation processes for dye removal applications: A review. ENVIRONMENTAL RESEARCH 2022; 215:114242. [PMID: 36067842 DOI: 10.1016/j.envres.2022.114242] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 08/03/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
Over the past few years, synthetic dye-contaminated wastewater has attracted considerable global attention due to the low biodegradability and the ability of organic dyes to persist and remain toxic, causing numerous health and environmental concerns. As a result of the recalcitrant nature of those complex organic dyes, the remediation of wastewater using conventional wastewater treatment techniques is becoming increasingly challenging. In recent years, advanced oxidation processes (AOPs) have emerged as a potential alternative to treat organic dyestuffs discharged from industries. The most widely employed AOPs include photocatalysis, ozonation, Fenton oxidation, electrochemical oxidation, catalytic heterogeneous oxidation, and ultrasound irradiation. These processes involve the generation of highly reactive radicals to oxidize organic dyes into innocuous minerals. However, many conventional AOPs suffer from several setbacks, including the high cost, high consumption of reagents and substrates, self-agglomeration of catalysts, limited reusability, and the requirement of light, ultrasound, or electricity. Therefore, there has been significant interest in improving the performance of conventional AOPs using biopolymers and heterogeneous catalysts such as metal oxide nanoparticles (MONPs). Biopolymers have been widely considered in developing green, sustainable, eco-friendly, and low-cost AOP-based dye removal technologies. They inherit intriguing properties like biodegradability, renewability, nontoxicity, relative abundance, and sorption. In addition, the immobilization of catalysts on biopolymer supports has been proven to possess excellent catalytic activity and turnover numbers. The current review provides comprehensive coverage of different AOPs and how efficiently biopolymers, including cellulose, chitin, chitosan, alginate, gelatin, guar gum, keratin, silk fibroin, zein, albumin, lignin, and starch, have been integrated with heterogeneous AOPs in dye removal applications. This review also discusses the general degradation mechanisms of AOPs, applications of biopolymers in AOPs and the roles of biopolymers in AOPs-based dye removal processes. Furthermore, key challenges and future perspectives of biopolymer-based AOPs have also been highlighted.
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Affiliation(s)
- Dinusha Peramune
- Department of Biosystems Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama, 10200, Sri Lanka
| | - Danushika C Manatunga
- Department of Biosystems Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama, 10200, Sri Lanka
| | - Rohan S Dassanayake
- Department of Biosystems Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama, 10200, Sri Lanka.
| | - Vikum Premalal
- Department of Civil and Environmental Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama, 10200, Sri Lanka
| | - Renuka N Liyanage
- Department of Materials and Mechanical Technology, Faculty of Technology, University of Sri Jayewardenepura, Homagama, 10200, Sri Lanka
| | - Chamila Gunathilake
- Department of Material and Nanoscience Technology, Faculty of Technology, Wayamba University of Sri Lanka, Kuliyapitiya, 60200, Sri Lanka
| | - Noureddine Abidi
- Fiber and Biopolymer Research Institute, Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, 79409, USA
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Enhanced artificial intelligence for electrochemical sensors in monitoring and removing of azo dyes and food colorant substances. Food Chem Toxicol 2022; 169:113398. [PMID: 36096291 DOI: 10.1016/j.fct.2022.113398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Revised: 08/11/2022] [Accepted: 08/25/2022] [Indexed: 11/22/2022]
Abstract
It is necessary to determine whether synthetic dyes are present in food since their excessive use has detrimental effects on human health. For the simultaneous assessment of tartrazine and Patent Blue V, a novel electrochemical sensing platform was developed. As a result, two artificial azo colorants (Tartrazine and Patent Blue V) with toxic azo groups (-NN-) and other carcinogenic aromatic ring structures were examined. With a low limit of detection of 0.06 μM, a broad linear concentration range 0.09μM to 950μM, and a respectable recovery, scanning electron microscopy (SEM) was able to reveal the excellent sensing performance of the suggested electrode for patent blue V. The electrochemical performance of an electrode can be characterized using cyclic and differential pulse voltammetry, and electrochemical impedance spectroscopy. Moreover, the classification model was created by applying binary classification assessment using enhanced artificial intelligence comprises of support vector machine (SVM) and Genetic Algorithm (GA), respectively, a support vector machine and a genetic algorithm, which was then validated using the 50 dyes test set. The best binary logistic regression model has an accuracy of 83.2% and 81.1%, respectively, while the best SVM model has an accuracy of 90.3% for the training group of samples and 81.1% for the test group (RMSE = 0.644, R2 = 0.873, C = 205.41, and = 5.992). According to the findings, Cu-BTC MOF (copper (II)-benzene-1,3,5-tricarboxylate) has a crystal structure and is tightly packed with hierarchically porous nanomaterials, with each particle's edge measuring between 20 and 37 nm. The suggested electrochemical sensor's analytical performance is suitable for foods like jellies, condiments, soft drinks and candies.
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8
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Optimising zero-valent iron from industrial waste using a modified air-Fenton system to treat cutting oil wastewater using response surface methodology. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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9
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Jarvin M, Kumar SA, Rosaline DR, Foletto EL, Dotto GL, Inbanathan SSR. Remarkable sunlight-driven photocatalytic performance of Ag-doped ZnO nanoparticles prepared by green synthesis for degradation of emerging pollutants in water. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:57330-57344. [PMID: 35349064 DOI: 10.1007/s11356-022-19796-6] [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: 09/24/2021] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
In this work, Ag-doped ZnO nanoparticles (NPs) were synthesized by a simple green method using a toxic agent-free route for photocatalytic purposes, toward methylene blue (MB) removal in water under sunlight irradiation. The effects of operating parameters, such as catalyst dosage, dye concentration, and pH, on the MB removal efficiency, were investigated. The presence of Ag on the ZnO structure resulted in superior catalytic activity compared to the pure ZnO sample. High removal efficiency for MB, corresponding to 95%, was obtained in 30 min of reaction time only, using Ag-doped ZnO NPs. This result can be related to its smaller bandgap energy (1.92 eV) when compared to the ZnO sample (2.85 eV). The material presented a satisfactory level of reusability after three consecutive cycles. In addition, a reaction mechanism for MB photodegradation onto Ag-doped ZnO NPs under sunlight irradiation was suggested. Overall, the catalyst prepared via the green route in this work exhibited excellent photocatalytic activity under sunlight for MB degradation in an aqueous solution.
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Affiliation(s)
- Mariyadhas Jarvin
- Post Graduate and Research Department of Physics, The American College, Madurai, 625002, Tamil Nadu, India
| | - Sundararajan Ashok Kumar
- Post Graduate and Research Department of Physics, The American College, Madurai, 625002, Tamil Nadu, India
| | - Daniel Rani Rosaline
- Post Graduate and Research Department of Chemistry, Lady Doak College, Madurai, 625002, Tamil Nadu, India
| | - Edson Luiz Foletto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Guilherme Luiz Dotto
- Chemical Engineering Department, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil.
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10
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Dassanayake RS, Acharya S, Abidi N. Recent Advances in Biopolymer-Based Dye Removal Technologies. Molecules 2021; 26:4697. [PMID: 34361855 PMCID: PMC8347927 DOI: 10.3390/molecules26154697] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/21/2021] [Accepted: 07/29/2021] [Indexed: 12/19/2022] Open
Abstract
Synthetic dyes have become an integral part of many industries such as textiles, tannin and even food and pharmaceuticals. Industrial dye effluents from various dye utilizing industries are considered harmful to the environment and human health due to their intense color, toxicity and carcinogenic nature. To mitigate environmental and public health related issues, different techniques of dye remediation have been widely investigated. However, efficient and cost-effective methods of dye removal have not been fully established yet. This paper highlights and presents a review of recent literature on the utilization of the most widely available biopolymers, specifically, cellulose, chitin and chitosan-based products for dye removal. The focus has been limited to the three most widely explored technologies: adsorption, advanced oxidation processes and membrane filtration. Due to their high efficiency in dye removal coupled with environmental benignity, scalability, low cost and non-toxicity, biopolymer-based dye removal technologies have the potential to become sustainable alternatives for the remediation of industrial dye effluents as well as contaminated water bodies.
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Affiliation(s)
- Rohan S. Dassanayake
- Department of Biosystems Technology, Faculty of Technology, University of Sri Jayewardenepura, Nugegoda 10250, Sri Lanka;
| | - Sanjit Acharya
- Fiber and Biopolymer Research Institute, Texas Tech University, Lubbock, TX 79409, USA;
| | - Noureddine Abidi
- Fiber and Biopolymer Research Institute, Texas Tech University, Lubbock, TX 79409, USA;
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11
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Saleh M, Bilici Z, Kaya M, Yalvac M, Arslan H, Yatmaz HC, Dizge N. The use of basalt powder as a natural heterogeneous catalyst in the Fenton and Photo-Fenton oxidation of cationic dyes. ADV POWDER TECHNOL 2021. [DOI: 10.1016/j.apt.2021.02.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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12
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de O Salomón YL, Georgin J, Franco DSP, Netto MS, Foletto EL, Piccilli DGA, Sellaoui L, Dotto GL. Transforming pods of the species Capparis flexuosa into effective biosorbent to remove blue methylene and bright blue in discontinuous and continuous systems. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:8036-8049. [PMID: 33051842 DOI: 10.1007/s11356-020-11211-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
This study investigates, for the first time, the applicability of seed pods from Capparis flexuosa as an alternative biosorbent to remove methylene blue and bright blue from aqueous medium using continuous and batch systems. The biosorbent was characterized by different techniques, whose particles presented rough surface and large pores and functional groups existing on its surface. In the batch system, an adsorptive capacity of 96.40 mg g-1 and 80% of methylene blue removal was reached with 0.9 g L-1 of adsorbent at pH 10, whereas 109.7 mg g-1 and 83% of bright blue removal was observed using 0.8 g L-1 of adsorbent at pH 2.0. The Elovich model adjusted the experimental data satisfactorily for both dyes. Tóth model for the MB best described the equilibrium data, and the Langmuir model for the bright blue both favored by the increase of temperature and dyes' concentration. The maximum capacities obtained were 280.78 mg g-1 and 342.85 mg g-1 for methylene blue and bright blue, respectively. The thermodynamic parameters indicated spontaneous processes, with endothermic behavior for both dyes. The fixed adsorption experiments using Capparis flexuosa seed pods showed adsorptive capacities of 158.65 and 205.81 mg g-1 for the methylene blue and bright blue, respectively. The overall results indicated that the pods of the Capparis flexuosa could be an ecological, effective, and economical alternative in the removal of dyes for both continuous and batch systems.
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Affiliation(s)
- Yamil L de O Salomón
- Graduate Program in Environmental Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Jordana Georgin
- Graduate Program in Civil Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Dison S P Franco
- Graduate Program in Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Matias S Netto
- Graduate Program in Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Edson L Foletto
- Graduate Program in Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Daniel G A Piccilli
- Graduate Program in Environmental Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Lotfi Sellaoui
- Laboratory of Quantum and Statistical Physics, LR18ES18, Faculty of Sciences of Monastir, Monastir University, Monastir, Tunisia
| | - Guilherme L Dotto
- Graduate Program in Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil.
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Kerstens D, Smeyers B, Van Waeyenberg J, Zhang Q, Yu J, Sels BF. State of the Art and Perspectives of Hierarchical Zeolites: Practical Overview of Synthesis Methods and Use in Catalysis. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2004690. [PMID: 32969083 DOI: 10.1002/adma.202004690] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 08/18/2020] [Indexed: 06/11/2023]
Abstract
Microporous zeolites have proven to be of great importance in many chemical processes. Yet, they often suffer from diffusion limitations causing inefficient use of the available catalytically active sites. To address this problem, hierarchical zeolites have been developed, which extensively improve the catalytic performance. There is a multitude of recent literature describing synthesis of and catalysis with these hierarchical zeolites. This review attempts to organize and overview this literature (of the last 5 years), with emphasis on the most important advances with regard to synthesis and application of such zeolites. Special attention is paid to the most common and important 10- and 12-membered ring zeolites (MTT, TON, FER, MFI, MOR, FAU, and *BEA). In contrast to previous reviews, the research per zeolite topology is brought together and discussed here. This allows the reader to instantly find the best synthesis method in accordance to the desired zeolite properties. A summarizing graph is made available to enable the reader to select suitable synthesis procedures based on zeolite acidity and mesoporosity, the two most important tunable properties.
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Affiliation(s)
- Dorien Kerstens
- Centre for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan, 200f, 3001, Leuven, Belgium
| | - Brent Smeyers
- Centre for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan, 200f, 3001, Leuven, Belgium
| | - Jonathan Van Waeyenberg
- Centre for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan, 200f, 3001, Leuven, Belgium
| | - Qiang Zhang
- State Key Laboratory of Inorganic Synthesis and Preperative Chemistry College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Jihong Yu
- State Key Laboratory of Inorganic Synthesis and Preperative Chemistry College of Chemistry, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Bert F Sels
- Centre for Sustainable Catalysis and Engineering, KU Leuven, Celestijnenlaan, 200f, 3001, Leuven, Belgium
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14
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Xiang H, Ren G, Yang X, Xu D, Zhang Z, Wang X. A low-cost solvent-free method to synthesize α-Fe 2O 3 nanoparticles with applications to degrade methyl orange in photo-fenton system. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 200:110744. [PMID: 32460050 DOI: 10.1016/j.ecoenv.2020.110744] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 04/26/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Hematite nanoparticles (α-Fe2O3 NPs) were successfully synthesized by a low-cost solvent-free reaction using Ferrous sulfate waste (FeSO4·7H2O) and pyrite (FeS2) as raw materials and employed for the decolorization of Methyl Orange by the photo-Fenton system. The properties of α-Fe2O3 NPs before and after photo-Fenton reaction were characterized by X-ray powder diffraction (XRD), Field emission scanning electron microscopy (FESEM), Fourier transform infrared (FT-IR) spectrum and X-ray photoelectron spectroscopy (XPS), and the optical properties of α-Fe2O3 NPs were analyzed by UV-vis diffuse reflectance spectra (UV-vis DRS) and Photoluminescence (PL) spectra. The analytic results showed that the as-formed samples having an average diameter of ~50 nm exhibit pure phase hematite with sphere structure. Besides, little differences were found by comparing the characterization data of the particles before and after the photo-Fenton reaction, indicating that the photo-Fenton reaction was carried out in solution rather than on the surface of α-Fe2O3 NPs. A 24 central composite design (CCD) coupled with response surface methodology (RSM) was applied to evaluate and optimize the important variables. A significant quadratic model (P-value<0.0001, R2 = 0.9664) was derived using an analysis of variance (ANOVA), which was adequate to perform the process variables optimization. The optimal process conditions were performed to be 395 nm of the light wavelength, pH 3.0, 5 mmol/L H2O2 and 1 g/L α-Fe2O3, and the decolorization efficiency of methyl orange was 99.55% at 4 min.
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Affiliation(s)
- Hengli Xiang
- School of Chemical Engineering of Sichuan University, Chengdu, 610065, PR China; Engineering Research Center of Comprehensive Utilization and Clean Processing of Phosphorus Resources, Ministry of Education, Chengdu, 610065, PR China
| | - Genkuan Ren
- School of Chemical Engineering of Sichuan University, Chengdu, 610065, PR China; College of Chemistry and Chemical Engineering, Yibin University, Yibin, 644000, PR China
| | - Xiushan Yang
- School of Chemical Engineering of Sichuan University, Chengdu, 610065, PR China; Engineering Research Center of Comprehensive Utilization and Clean Processing of Phosphorus Resources, Ministry of Education, Chengdu, 610065, PR China.
| | - Dehua Xu
- School of Chemical Engineering of Sichuan University, Chengdu, 610065, PR China; Engineering Research Center of Comprehensive Utilization and Clean Processing of Phosphorus Resources, Ministry of Education, Chengdu, 610065, PR China
| | - Zhiye Zhang
- School of Chemical Engineering of Sichuan University, Chengdu, 610065, PR China; Engineering Research Center of Comprehensive Utilization and Clean Processing of Phosphorus Resources, Ministry of Education, Chengdu, 610065, PR China
| | - Xinlong Wang
- School of Chemical Engineering of Sichuan University, Chengdu, 610065, PR China; Engineering Research Center of Comprehensive Utilization and Clean Processing of Phosphorus Resources, Ministry of Education, Chengdu, 610065, PR China
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Mosleh S, Rahimi MR, Ghaedi M, Asfaram A, Jannesar R, Sadeghfar F. A rapid and efficient sonophotocatalytic process for degradation of pollutants: Statistical modeling and kinetics study. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.03.115] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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