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Machado RC, Valle SFD, Sena TBM, Perrony PEP, Bettiol W, Ribeiro C. Aluminosilicate and zeolitic materials synthesis using alum sludge from water treatment plants: Challenges and perspectives. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 186:94-108. [PMID: 38870604 DOI: 10.1016/j.wasman.2024.05.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/24/2024] [Accepted: 05/29/2024] [Indexed: 06/15/2024]
Abstract
Alum sludge (AS) is a by-product generated from drinking water treatment and produced in large amounts around the world. Its chemical composition makes this waste an emerging alternative source of silicon and aluminum for aluminosilicates or zeolite material production, which can add value to residues and contribute to the circular economy process on a global scale. In this sense, and considering the scarcity of information about AS, this review shows data collection about AS in different countries, including generation, chemical composition, and disposal information. The reuse of AS is discussed based on circular economy and the environmental gains derived from such approaches are highlighted, including the possibility of utilization with other residues (e.g., ash, bioproducts, etc). Moreover, this review shows and discusses the benefits and challenges of AS reuse in the synthesis process and how it can be a sustainable raw material for aluminosilicates and zeolite synthesis. The most common conditions (conventional or non-conventional) in zeolite synthesis from AS are mentioned and advantages, limitations and trends are discussed. The discussions and data presented can improve the AS management and reuse legislations, which certainly will collaborate with sustainable AS use and circular economy processes.
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Affiliation(s)
| | | | - Thais Beatriz Miqueleti Sena
- Embrapa Instrumentation, São Carlos 13560-970, SP, Brazil; Institute of Chemistry, University of São Paulo, São Carlos 13566-590, SP, Brazil
| | | | | | - Caue Ribeiro
- Embrapa Instrumentation, São Carlos 13560-970, SP, Brazil.
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2
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Zhang S, Zhang X, Bai H, Wang K. Resource utilization of stone waste and loess to prepare grouting materials. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 354:120452. [PMID: 38401503 DOI: 10.1016/j.jenvman.2024.120452] [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: 10/09/2023] [Revised: 01/12/2024] [Accepted: 02/20/2024] [Indexed: 02/26/2024]
Abstract
Loess, a terrestrial clastic sediment, is formed essentially by the accumulation of wind-blown dust, while stone waste (SW) is an industrial waste produced during stone machining. Utilising loess and SW to prepare environmentally-friendly supplementary cementitious materials can not only address environmental issues caused by solid waste landfills but also meet the demand of reinforcement of coal-seam floor aquifer for grouting materials. In this paper, the effects of the loess/SW mass ratio and calcination temperature on the transformation of calcined products are investigated and their pozzolanic activities are evaluated. The workability, environmental impact and cost of grouting materials based on cement and calcined products are also assessed. Experimental results reveal that higher temperatures favour the formation of free lime and periclase, which tend to be involved in solid-state reactions. Higher temperature and loess/SW mass ratio strengthens the diffraction peaks of dodecalcium hepta-aluminate (C12A7), dicalcium ferrite (C2F) and dicalcium silicate (C2S). The clay minerals in loess become completely dehydroxylated before 825 °C, generating amorphous SiO2 and Al2O3. Covalent Si-O bonds are interrupted and that disordered silicate networks are generated in the calcined products, which is confirmed by the increased strength of the Si29 resonance region at -60 ppm to -80 ppm. Although co-calcined loess and SW contain the most four-fold aluminium at 950 °C, recrystallisation depresses the pozzolanic activity. Hence, the loess/SW sample designated LS2-825 exhibits the better hydration activity. Additionally, grouting materials composed of cement and LS2-825 exhibit good setting times, fluidity, strength and a low carbon footprint in practical engineering applications, and they also provide the additional benefit of being cost effective.
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Affiliation(s)
- Shiyu Zhang
- School of Mining Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Xiaoqiang Zhang
- School of Mining Engineering, Taiyuan University of Technology, Taiyuan, 030024, China.
| | - Hao Bai
- School of Mining Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
| | - Kai Wang
- School of Mining Engineering, Taiyuan University of Technology, Taiyuan, 030024, China
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3
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Critical review on the synthesis and advancement of industrial and biomass waste-based zeolites and their applications in gas adsorption and biomedical studies. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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4
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Maharana M, Sen S. Synthesis and characterisation of transition metal sulphide-loaded fly ash-based mesoporous EU-12 photocatalysts for degradation of rhodamine B. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:74365-74376. [PMID: 35644819 DOI: 10.1007/s11356-022-21093-1] [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: 03/26/2022] [Accepted: 05/21/2022] [Indexed: 06/15/2023]
Abstract
Transition metal sulphide-loaded fly ash-based EU-12 photocatalysts were synthesized by sono-hydrothermal method followed by ion exchange. The composites were characterized by XRD, FESEM, DSC-TGA, Raman spectroscopy, and BET surface area analysis. The XRD results imply 76.39% crystallinity of EU-12 and morphological studies by FESEM, and TEM revealed the shape and size of EU-12, i.e. rod-shaped with size ranging from 5 to 200 nm. Band gap of all synthesized photocatalysts were found to be ≤ 3.44 eV. The photoactivities of the photocatalysts were examined by degrading rhodamine B (RhB). The results indicated that metal sulphide/EU-12 composite had the strong photoactivity under visible light compared to dark environment. Furthermore, the efficiency of photocatalysts was determined in terms of degradation efficiency towards RhB which was found to be maximum of 98.62% for 0.2 M CdS/EU-12 at 2 gL-1 of catalyst dosage and 10 ppm of dye concentration within 3 h under visible light source of 200 W.
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Affiliation(s)
- Manisha Maharana
- Catalysis Research Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India
| | - Sujit Sen
- Catalysis Research Laboratory, Department of Chemical Engineering, National Institute of Technology Rourkela, Rourkela, Odisha, 769008, India.
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5
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Abstract
The discovery of an innovative category of inorganic geopolymer composites has generated extensive scientific attention and the kaleidoscopic development of their applications. The escalating concerns over global warming owing to emissions of carbon dioxide (CO2), a primary greenhouse gas, from the ordinary Portland cement industry, may hopefully be mitigated by the development of geopolymer construction composites with a lower carbon footprint. The current manuscript comprehensively reviews the rheological, strength and durability properties of geopolymer composites, along with shedding light on their recent key advancements viz., micro-structures, state-of-the-art applications such as the immobilization of toxic or radioactive wastes, digital geopolymer concrete, 3D-printed fly ash-based geopolymers, hot-pressed and foam geopolymers, etc. They have a crystal-clear role to play in offering a sustainable prospect to the construction industry, as part of the accessible toolkit of building materials—binders, cements, mortars, concretes, etc. Consequently, the present scientometric review manuscript is grist for the mill and aims to contribute as a single key note document assessing exhaustive research findings for establishing the viability of fly ash-based geopolymer composites as the most promising, durable, sustainable, affordable, user and eco-benevolent building materials for the future.
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6
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Liao Y, Liu Q, Su B, Ji G. Value-added utilization of silicon and iron in copper smelting slag. SEP SCI TECHNOL 2022. [DOI: 10.1080/01496395.2022.2081810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yalong Liao
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Qingfeng Liu
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Bowen Su
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Guangxiong Ji
- Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, China
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7
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Ghazali NA, Aqsha A, Komiyama M, Qasim M, Mohd Yusoff MH, Ayoub M, Ameen M, Tijani MM. Comparative Study on Ni/γ-Al 2O 3 Prepared via Ultrasonic Irradiation and Impregnation Approaches as an Oxygen Carrier in Chemical Looping Combustion. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c02485] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Nur Adibah Ghazali
- HiCoE−Center for Biofuels and Biochemical Research (CBBR), Institute of Sustainable Building (ISB) Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
| | - Aqsha Aqsha
- Research Centre on New and Renewable Energy, Institut Teknologi Bandung, JI. Ganesha No. 10, Bandung 40132, Indonesia
- Department of Bioenergy Engineering and Chemurgy, Faculty of Industrial Technology, Institut Teknologi Bandung, Sumedang 45363, Indonesia
- Department of Chemical Engineering, Faculty of Industrial Technology, Institut Teknologi Bandung, JI. Ganesa No. 10, Bandung 40132, Indonesia
| | - Masaharu Komiyama
- HiCoE−Center for Biofuels and Biochemical Research (CBBR), Institute of Sustainable Building (ISB) Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
- Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu 400-8511, Japan
| | - Muhammad Qasim
- HiCoE−Center for Biofuels and Biochemical Research (CBBR), Institute of Sustainable Building (ISB) Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
| | - Mohd Hizami Mohd Yusoff
- HiCoE−Center for Biofuels and Biochemical Research (CBBR), Institute of Sustainable Building (ISB) Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
| | - Muhammad Ayoub
- HiCoE−Center for Biofuels and Biochemical Research (CBBR), Institute of Sustainable Building (ISB) Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
| | - Mariam Ameen
- HiCoE−Center for Biofuels and Biochemical Research (CBBR), Institute of Sustainable Building (ISB) Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
- Department of Chemical Engineering, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak 32610, Malaysia
| | - Mansour Mohammedramadan Tijani
- Department of Chemical and Petroleum Engineering, Schulich School of Engineering, University of Calgary, Calgary, AB T2N 1N4, Canada
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8
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Experimental and Theoretical Studies of Sonically Prepared Cu–Y, Cu–USY and Cu–ZSM-5 Catalysts for SCR deNOx. Catalysts 2021. [DOI: 10.3390/catal11070824] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The objective of our study was to prepare Y-, USY- and ZSM-5-based catalysts by hydrothermal synthesis, followed by copper active-phase deposition by either conventional ion-exchange or ultrasonic irradiation. The resulting materials were characterized by XRD, BET, SEM, TEM, Raman, UV-Vis, monitoring ammonia and nitrogen oxide sorption by FT-IR and Diffuse Reflectance Infrared Fourier Transform Spectroscopy (DRIFTS). XRD data confirmed the purity and structure of the Y/USY or ZSM-5 zeolites. The nitrogen and ammonia sorption results indicated that the materials were highly porous and acidic. The metallic active phase was found in the form of cations in ion-exchanged zeolites and in the form of nanoparticle metal oxides in sonochemically prepared catalysts. The latter showed full activity and high stability in the SCR deNOx reaction. The faujasite-based catalysts were fully active at 200–400 °C, whereas the ZSM-5-based catalysts reached 100% activity at 400–500 °C. Our in situ DRIFTS experiments revealed that Cu–O(NO) and Cu–NH3 were intermediates, also indicating the role of Brønsted sites in the formation of NH4NO3. Furthermore, the results from our experimental in situ spectroscopic studies were compared with DFT models. Overall, our findings suggest two possible mechanisms for the deNOx reaction, depending on the method of catalyst preparation (i.e., conventional ion-exchange vs. ultrasonic irradiation).
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9
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Hussain T, Hussain AI, Chatha SAS, Ali A, Rizwan M, Ali S, Ahamd P, Wijaya L, Alyemeni MN. Synthesis and Characterization of Na-Zeolites from Textile Waste Ash and Its Application for Removal of Lead (Pb) from Wastewater. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:ijerph18073373. [PMID: 33805146 PMCID: PMC8037912 DOI: 10.3390/ijerph18073373] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 02/24/2021] [Accepted: 03/03/2021] [Indexed: 12/16/2022]
Abstract
Massive production of carcinogenic fly ash waste poses severe threats to water bodies due to its disposal into drains and landfills. Fly ash can be a source of raw materials for the synthesis of adsorbents. Rag fly ash as a new class of raw materials could be a cheap source of Al and Si for the synthesis of Na-zeolites. In this work, NaOH activation, via a prefusion- and postfusion-based hydrothermal strategy, was practiced for the modification of rag fly ash into Na-zeolite. Morphology, surface porosity, chemical composition, functionality, mineral phases, and crystallinity, in conjunction with ion exchangeability of the tailored materials, were evaluated by SEM, ICP-OES, XRF, FTIR, XRD, and cation exchange capacity (CEC) techniques. Rag fly ash and the synthesized Na-zeolites were applied for the removal of Pb (II) from synthetic wastewater by varying the reaction conditions, such as initial metal ion concentration, mass of adsorbent, sorption time, and pH of the reaction medium. It was observed that Na-zeolite materials (1 g/100 mL) effectively removed up to 90–98% of Pb (II) ions from 100 mg/L synthetic solution within 30 min at pH ≈ 8. Freundlich adsorption isotherm favors the multilayer heterogeneous adsorption mechanism for the removal of Pb (II). It is reasonable to conclude that recycling of textile rag fly ash waste into value-added Na-zeolites for the treatment of industrial wastewater could be an emergent move toward achieving sustainable and green remediation.
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Affiliation(s)
- Tabassum Hussain
- Department of Applied Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan;
| | - Abdullah Ijaz Hussain
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (A.I.H.); (S.A.S.C.)
| | - Shahzad Ali Shahid Chatha
- Department of Chemistry, Government College University Faisalabad, Faisalabad 38000, Pakistan; (A.I.H.); (S.A.S.C.)
| | - Adnan Ali
- Department of Physics, Government College University Faisalabad, Faisalabad 38000, Pakistan;
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad 38000, Pakistan;
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University Faisalabad, Faisalabad 38000, Pakistan;
- Department of Biological Sciences and Technology, China Medical University, Taichung 40402, Taiwan
- Correspondence: or
| | - Parvaiz Ahamd
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (P.A.); (L.W.); (M.N.A.)
| | - Leonard Wijaya
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (P.A.); (L.W.); (M.N.A.)
| | - Mohammed Nasser Alyemeni
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11451, Saudi Arabia; (P.A.); (L.W.); (M.N.A.)
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10
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Widayat W, Christwardana M, Syaiful S, Satriadi H, Khaibar AK, Almaki MM. Development of Heterogeneous Alkali Methoxide Catalyst from Fly Ash and Limestone. CHEMISTRY & CHEMICAL TECHNOLOGY 2020. [DOI: 10.23939/chcht14.04.521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
This study is aimed to use fly ash and limestone as raw materials for preparing alkali methoxide heterogeneous catalysts for transesterification of palm oil into biodiesel. The heterogeneous catalyst was synthesized from fly ash and limestone through wet and dry methods and calcined within 1073–1273 K. X-ray diffraction and scanning electron microscopy analyses indicated the well-dispersed presence of the Ca(OCH3)2 crystal over the fly ash and limestone framework, which was mixed using wet method and calcined at 1073 K (W-800). Results showed that W-800 exhibited larger surface area and more uniform active sites than the other catalysts. About 88.6 % of biodiesel was produced from commercial palm oil with W-800 as the catalyst. The product possesses physicochemical characteristics, such as density, kinematic viscosity and free fatty acid content, which satisfy the international biodiesel standard. The catalyst was used for biodiesel production for four cycles, and the biodiesel yield was maintained up to 91.87 % from the initial value.
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11
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Belviso C, Peddis D, Varvaro G, Abdolrahimi M, Reverberi AP, Cavalcante F. Obsidian as a Raw Material for Eco-Friendly Synthesis of Magnetic Zeolites. MATERIALS (BASEL, SWITZERLAND) 2020; 13:ma13204633. [PMID: 33081399 PMCID: PMC7603046 DOI: 10.3390/ma13204633] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/13/2020] [Accepted: 10/15/2020] [Indexed: 06/11/2023]
Abstract
A sample of rhyolitic obsidian (OS) was used as raw material for zeolite synthesis by long (4 days) and fast (2 h)-aging hydrothermal processes. Zeolite synthesis was also performed by a fast (2 h) sonication method. The products were analysed by X-ray diffraction (XRD) and scanning electron microscopy (SEM) both immediately after and 3 years after their formation in order to determine the stability of synthetic materials according to the method used. The results confirm zeolitization of obsidian both by long-aging conventional hydrothermal heating and fast hydrothermal process. However, the data highlight the efficiency of direct ultrasound energy in achieving more stable zeolite crystals over time. These results carried out using a natural source, follow those already obtained using wastes and pure sources as raw materials thus providing a definitive validation of the different mechanisms controlling zeolite formation according to the process used. Moreover, the results confirm the effectiveness of ultrasonic energy in the formation of zeolites that are more stable over time. Due to the chemical composition of the obsidian precursor, all synthetic zeolites show good magnetic properties (i.e., saturation magnetization), in view to potential magnetic separation.
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Affiliation(s)
- Claudia Belviso
- Istituto di Metodologie per l’Analisi Ambientale—CNR, 85050 Tito Scalo, Italy;
| | - Davide Peddis
- Departments of Chemistry and Industrial Chemistry (DCIC), Università of Genova, 16146 Genova, Italy; (D.P.); (A.P.R.)
- Istituto di Struttura della Materia—CNR, 00015 Monterotondo Scalo, Italy;
| | - Gaspare Varvaro
- Dipartimento di Scienze, Università degli Studi Roma Tre, 00146 Roma, Italy;
| | - Maryam Abdolrahimi
- Istituto di Struttura della Materia—CNR, 00015 Monterotondo Scalo, Italy;
- Dipartimento di Scienze, Università degli Studi Roma Tre, 00146 Roma, Italy;
| | - Andrea Pietro Reverberi
- Departments of Chemistry and Industrial Chemistry (DCIC), Università of Genova, 16146 Genova, Italy; (D.P.); (A.P.R.)
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12
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Zeolite for Potential Toxic Metal Uptake from Contaminated Soil: A Brief Review. Processes (Basel) 2020. [DOI: 10.3390/pr8070820] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Soil pollution is an increasingly urgent problem for the global environment. Soil can be contaminated with potential toxic metals from many anthropogenic activities, besides fossil fuel combustion and crude oil production, ranging from industry to mining and agriculture. Many technologies have been analysed to solve this type of environmental pollution and methods involving the use of minerals (e.g., clay minerals, zeolites, and natural silica adsorbents) are widely described in the literature. This article provides a summary of studies concerning the use of zeolites in soil remediation. A considerable number of these experiments were conducted using natural zeolites, while fewer concerned the utilization of synthetic zeolites. The mechanism controlling the successful application of these minerals was analysed through referring to global data published on this topic over the last few decades. This review also briefly discusses the limitations on zeolite applications and the drawbacks of the approaches analysed.
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13
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Czarna-Juszkiewicz D, Kunecki P, Panek R, Madej J, Wdowin M. Impact of fly ash fractionation on the zeolitization process. MATERIALS 2020; 13:ma13051035. [PMID: 32106436 PMCID: PMC7084421 DOI: 10.3390/ma13051035] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Revised: 02/12/2020] [Accepted: 02/20/2020] [Indexed: 11/16/2022]
Abstract
Coal combustion product in the form of fly ash has been sieved and successfully utilised as a main substrate and a carrier of silicon and aluminium in a set of hydrothermal syntheses of zeolites. The final product was abundant in zeolite X phase (Faujasite framework). Raw fly ash as well as its derivatives, after being sieved (fractions: ≤ 63, 63-125, 125-180 and ≥ 180 µm), and the obtained zeolite materials were subjected to mineralogical characterisation using powder X-ray diffraction, energy-dispersive X-ray fluorescence, laser diffraction-based particle size analysis and scanning electron microscopy. The influence of fraction separation on the zeolitization process under hydrothermal synthesis was investigated. Analyses performed on the derived zeolite X samples revealed a meaningful impact of the given fly ash fraction on synthesis efficiency, chemistry, quality as well as physicochemical properties, while favouring a given morphological form of zeolite crystals. The obtained zeolites possess great potential for use in many areas of industry and environmental protection or engineering.
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Affiliation(s)
- Dorota Czarna-Juszkiewicz
- Mineral and Energy Economy Research Institute, Polish Academy of Sciences, Wybickiego 7A, 31-261 Kraków, Poland; (D.C.-J.); (P.K.)
| | - Piotr Kunecki
- Mineral and Energy Economy Research Institute, Polish Academy of Sciences, Wybickiego 7A, 31-261 Kraków, Poland; (D.C.-J.); (P.K.)
| | - Rafał Panek
- Department of Geotechnical Engineering, Civil Engineering and Architecture Faculty, Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin, Poland; (R.P.); (J.M.)
| | - Jarosław Madej
- Department of Geotechnical Engineering, Civil Engineering and Architecture Faculty, Lublin University of Technology, Nadbystrzycka 40, 20-618 Lublin, Poland; (R.P.); (J.M.)
| | - Magdalena Wdowin
- Mineral and Energy Economy Research Institute, Polish Academy of Sciences, Wybickiego 7A, 31-261 Kraków, Poland; (D.C.-J.); (P.K.)
- Correspondence:
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14
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Kuterasiński Ł, Rojek W, Gackowski M, Zimowska M, Jodłowski PJ. Sonically modified hierarchical FAU-type zeolites as active catalysts for the production of furan from furfural. ULTRASONICS SONOCHEMISTRY 2020; 60:104785. [PMID: 31539732 DOI: 10.1016/j.ultsonch.2019.104785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 08/29/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
In this study, the sonochemical-assisted desilication method was applied as a special and innovative way of preparing hierarchical zeolites. The physicochemical properties of the hierarchical zeolites prepared using the sonochemical route were compared with those prepared using the conventional desilication method. Commercial zeolite with FAU-type structure was desilicated with a sodium and tetrabutylammonium hydroxide aqueous solution (NaOH/TBAOH) for 30 min. The ultrasound treatment process was performed using a QSonica Q700 sonicator (Church Hill Rd, Newtown, CT, USA) equipped with a ½″ diameter horn. The average power of sonication was 60 W, and the frequency was 20 kHz. During the sonication procedure, the alkaline solution with the catalyst precursor and sonicator probe were placed in an ice bath to keep them at room temperature. The prepared catalyst samples were examined by ICP-OES, XRD, SEM, NMR, and nitrogen sorption techniques. The acidic properties of the prepared hierarchical zeolite samples were assessed by means of IR spectroscopy with ammonia and carbon monoxide sorption as probe molecules. All catalysts were studied in the decarbonylation of furfural into furan. Independently of the application of ultrasonic irradiation, desilication of zeolites with an NaOH/TBAOH mixture extracts comparable amounts of silicon, resulting in comparable crystallinity and acidity. On the other hand, the samples prepared in the presence of ultrasounds revealed higher both mesoporosity and enhanced catalytic properties in the reaction of decarbonylation of furfural into furan in comparison with their counterparts prepared using the conventional method.
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Affiliation(s)
- Łukasz Kuterasiński
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland.
| | - Wojciech Rojek
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland.
| | - Mariusz Gackowski
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland.
| | - Małgorzata Zimowska
- Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Cracow, Poland.
| | - P J Jodłowski
- Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland.
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15
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Makgabutlane B, Nthunya LN, Musyoka N, Dladla BS, Nxumalo EN, Mhlanga SD. Microwave-assisted synthesis of coal fly ash-based zeolites for removal of ammonium from urine. RSC Adv 2020; 10:2416-2427. [PMID: 35494557 PMCID: PMC9048987 DOI: 10.1039/c9ra10114d] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 12/26/2019] [Indexed: 11/21/2022] Open
Abstract
Zeolites synthesized from biomass waste materials offer a great opportunity in the sustainable utilization of the waste.
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Affiliation(s)
- Boitumelo Makgabutlane
- Nanotechnology and Water Sustainability Research Unit
- College of Science, Engineering and Technology
- University of South Africa
- Florida
- South Africa
| | - Lebea N. Nthunya
- Department of Chemical
- Metallurgical and Material Engineering
- Tshwane University of Technology
- Pretoria
- South Africa
| | - Nicholas Musyoka
- HySA Infrastructure Centre of Competence, Energy Centre
- Council for Scientific and Industrial Research (CSIR)
- Pretoria
- South Africa
| | - Bongumusa S. Dladla
- Department of Chemistry
- College of Science, Engineering and Technology
- University of South Africa
- Florida
- South Africa
| | - Edward N. Nxumalo
- Nanotechnology and Water Sustainability Research Unit
- College of Science, Engineering and Technology
- University of South Africa
- Florida
- South Africa
| | - Sabelo D. Mhlanga
- Nanotechnology and Water Sustainability Research Unit
- College of Science, Engineering and Technology
- University of South Africa
- Florida
- South Africa
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Yin X, Long Z, Wang C, Li Z, Zhao M, Yang S. A time- and cost-effective synthesis of CHA zeolite with small size using ultrasonic-assisted method. ULTRASONICS SONOCHEMISTRY 2019; 58:104679. [PMID: 31450340 DOI: 10.1016/j.ultsonch.2019.104679] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 07/05/2019] [Accepted: 07/08/2019] [Indexed: 05/25/2023]
Abstract
In this paper, the ultrasonic-assisted method has been used to the rapid hydrothermal synthesis of CHA zeolite in the absence of expensive organic template. The influence of different sonicated time on the crystallinity and micromorphology of CHA-type crystals has been studied in detail. The bath-type ultrasound processor produces acoustic waves at the frequency of 20 kHz and the power of ultrasound wave is 150 W. The synthesized products have been characterized by XRD, SEM, EDX, TG and N2 adsorption analyses. Due to the acceleration on homogeneous nucleation caused by acoustic cavitation cracks during the ultrasonic vibrative process, the crystallization time can be shorten from 48 h to 10 h and the crystal size can be reduced from about 20 μm to 5 μm. The SEM observations of samples with different ultrasonic treatment time distinctly revealed the morphology evolution of the walnut-like CHA zeolites. From EDX, TG and N2 adsorption comparisons, it is clear that untreated sample and ultrasonic sample both have similar element distribution, thermal stability, and pore size distribution. The research work in this paper has demonstrated the ultrasonic treatment can significantly improve crystallinity degree, reduce crystallization time and crystal size of CHA zeolite.
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Affiliation(s)
- Xiaoyan Yin
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China.
| | - Zengjie Long
- Shandong Huaxing Petrochemical Group Co., Ltd of China National Chemical Corporation, Dongying 257335, PR China
| | - Chen Wang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Zhongfang Li
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Min Zhao
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
| | - Shiwei Yang
- School of Chemistry and Chemical Engineering, Shandong University of Technology, Zibo 255049, PR China
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Zeolite RHO Synthesis Accelerated by Ultrasonic Irradiation Treatment. Sci Rep 2019; 9:15062. [PMID: 31636339 PMCID: PMC6803675 DOI: 10.1038/s41598-019-51460-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 09/27/2019] [Indexed: 11/08/2022] Open
Abstract
In recent years, there are increasing interest on applying ultrasonic irradiation for the synthesis of zeolite due to its advantages including remarkable shortened synthesis duration. In this project, the potential of ultrasonic irradiation treatment on the synthesis of zeolite RHO was investigated. Ultrasonic irradiation treatment time was varied from 30 to 120 minutes for the synthesis of zeolite RHO. The zeolite RHO solid samples were characterized with X-ray Diffraction (XRD), Field Emission Scanning Electron Microscopy (FESEM), Fourier Transform Infrared Spectroscopy (FTIR), Thermogravimetric Analysis (TGA) and nitrogen adsorption-desorption analysis. The application of ultrasonic irradiation treatment in this study has accelerated the synthesis of zeolite RHO where the synthesis duration has been significantly shortened to 2 days compared to 8 days required by conventional hydrothermal heating without ultrasonic irradiation treatment. Highly crystalline zeolite RHO crystals in truncated octahedron morphology were successfully formed.
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Belviso C, Perchiazzi N, Cavalcante F. Zeolite from Fly Ash: An Investigation on Metastable Behavior of the Newly Formed Minerals in a Medium-High-Temperature Range. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b03784] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Claudia Belviso
- Istituto di Metodologie per l’Analisi Ambientale, IMAA-CNR, C/da S. Loja, 85050 Tito Scalo (PZ), Italy
| | - Natale Perchiazzi
- Dipartimento di Scienze della Terra, Università di Pisa, Via Santa Maria, 53, 56126 Pisa (PI), Italy
| | - Francesco Cavalcante
- Istituto di Metodologie per l’Analisi Ambientale, IMAA-CNR, C/da S. Loja, 85050 Tito Scalo (PZ), Italy
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Ma Z, Wu D, Han X, Wang H, Zhang L, Gao Z, Xu F, Jiang K. Ultrasonic assisted synthesis of Zn-Ni bi-metal MOFs for interconnected Ni-N-C materials with enhanced electrochemical reduction of CO2. J CO2 UTIL 2019. [DOI: 10.1016/j.jcou.2019.04.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Sivalingam S, Sen S. Valorization of coal fly ash into nanozeolite by sonication-assisted hydrothermal method. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2019; 235:145-151. [PMID: 30682666 DOI: 10.1016/j.jenvman.2019.01.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 12/10/2018] [Accepted: 01/15/2019] [Indexed: 06/09/2023]
Abstract
The study aimed at the recycle and reuse coal fly ash (CFA) via a fast green method. Increasing dependence of coal in power sector results in increased production of CFA, the disposal of which is a major environmental issue. Sonication assisted hydrothermal (UAH) treatment has been employed to convert this CFA into versatile nanozeolite X (NZX) from CFA. The effect of CFA/NaOH, fusion temperature, fusion time and ultrasonication time were investigated. Initial precursor CFA and the synthesized NZX were characterized by XRF, XRD, FESEM, TEM, and FTIR analysis. UAH treatment produced NZX in shorter crystallization time than conventional hydrothermal (CH) method. The particle size of UAH-NZX were obtained from FESEM, BET, TEM analysis as 22-27 nm, 24.36 nm, and 2-5 nm respectively. Average crystal size of UAH-NZX was 21.58 nm as calculated using Scherrer's equation. The optimized condition for the UAH synthesis of NZX was found as CFA/NaOH ratio of 1.25, fusion temperature of 550 °C, fusion time of 1.5 h, and ultrasound time of 20 min. The characteristics of UAH-NZX zeolite was compared with CH-NZX and commercial zeolite X (CZX). The pure NZX was formed by UAH technique with 20 min ultrasound, followed by 6 h hydrothermal treatment at room temperature whereas CH technique took 96 h of hydrothermal digestion at 120 °C. The optimized CEC value of NZX, conventional hydrothermal zeolite X (CH-ZX), and CZX are 428 mmol/100 g, 242 mmol/100 g, and 293 mmol/100 g respectively. The UAH method produced NZX at shorter time with less consumption of energy than CH method with nanozeolite with higher CEC and surface area (797.53 m2/g) than both CH-NZX and CZX. The nanoscale zeolite X can be used efficiently as ion exchanger as well as adsorber.
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Affiliation(s)
- Sivamani Sivalingam
- Catalysis Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Rourkela, Odisha, 769 008, India
| | - Sujit Sen
- Catalysis Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Rourkela, Odisha, 769 008, India.
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Sivalingam S, Sen S. Rapid ultrasound assisted hydrothermal synthesis of highly pure nanozeolite X from fly ash for efficient treatment of industrial effluent. CHEMOSPHERE 2018; 210:816-823. [PMID: 30048933 DOI: 10.1016/j.chemosphere.2018.07.091] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Revised: 07/09/2018] [Accepted: 07/16/2018] [Indexed: 06/08/2023]
Abstract
Nanoporous green materials like nanozeolite has been in focus for their superb efficiency to treat industrial wastewater. The study reports ultrasound assisted hydrothermal method as a very fast method to convert industrial fly ash from different sources of eastern India to nanozeolite X for efficient removal of toxic dyes and metals from industrial effluent. The pure nanosized zeolite X was synthesized rapidly at 20 min of ultrasound treatment after alkali fusion. The efficiency of nanozeolite X was determined in terms of the adsorption capacity towards various divalent ions such as Zn2+, Cu2+, Cd2+, Pb2+, Ni2+, Ca2+, and Mg2+ as well as various dyes such as methylene blue, crystal violet, indigo carmine, and Congo red. In comparison to commercially available microporous Zeolite X (a maximum of 120.43 mg g-1 for Pb2+ and 134.62 mg g-1 by for methylene blue), all synthesized nanozeolite X shows high adsorption capacity for metals (a maximum of 196.24 mg g-1 for Pb2+) as well as dyes (193.45 mg g-1 for methylene blue). Highly pure nanozeolite X has shown immense potential for treatment of real time industrial wastewater.
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Affiliation(s)
- Sivamani Sivalingam
- Catalysis Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Rourkela, Odisha, 769 008, India
| | - Sujit Sen
- Catalysis Research Laboratory, Department of Chemical Engineering, National Institute of Technology, Rourkela, Odisha, 769 008, India.
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Sen M, Dana K, Das N. Development of LTA zeolite membrane from clay by sonication assisted method at room temperature for H 2-CO 2 and CO 2-CH 4 separation. ULTRASONICS SONOCHEMISTRY 2018; 48:299-310. [PMID: 30080554 DOI: 10.1016/j.ultsonch.2018.06.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 05/18/2018] [Accepted: 06/13/2018] [Indexed: 06/08/2023]
Abstract
In this work, sodium aluminosilicate zeolite powder and membranes were synthesized by ultrasonic irradiation at room temperature using montmorillonite clay as precursor material. For comparison, same zeolite powder and membranes were synthesized at 100 °C also. The synthesized zeolites were characterized by X-ray diffraction (XRD), infrared (IR) spectral analysis, and field-emission scanning electron microscopy (FESEM). XRD and IR results showed that phase pure mainly LTA phase was formed after 15 days of aging at room temperature. By using the zeolite powders as seeds, membranes were synthesized on clay alumina support tubes at room temperature and also at 100 °C. In both the cases membranes were formed on support surface. The membrane thickness was found to be 15 μm. The performances of the membranes were evaluated by single gas as well as mixture gas permeation measurement for H2-CO2 and CO2-CH4 respectively. The H2-CO2 and CO2-CH4 separation selectivity for the mixture gas of the membrane was found to 16.2 and 20.9 at room temperature respectively. To the best of our knowledge, there is no report of synthesis of zeolite membrane at room temperature using clay as raw materials. For the first time we have reported the synthesis of alumino-silicate zeolite membrane on clay alumina support surface using clay as starting material by sonochemical method at room temperature.
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Affiliation(s)
- Mitali Sen
- Ceramic Membrane Division, CSIR-Central Glass & Ceramic Research Institute, Kolkata 700 032, India
| | - Kausik Dana
- Clay and Traditional Ceramics Division, CSIR-Central Glass & Ceramic Research Institute, Kolkata 700 032, India
| | - Nandini Das
- Ceramic Membrane Division, CSIR-Central Glass & Ceramic Research Institute, Kolkata 700 032, India.
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Tadjarodi A, Dehghani M, Imani M. Green synthesis and characterization of palladium nanoparticles supported on zeolite Y by sonochemical method, powerful and efficient catalyst for Suzuki-Miyaura coupling of aryl halides with phenylboronic acid. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4594] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Azadeh Tadjarodi
- Research Laboratory of Inorganic Materials Synthesis, Department of Chemistry; Iran University of Science and Technology; Narmak Tehran Iran
| | - Modarres Dehghani
- Research Laboratory of Inorganic Materials Synthesis, Department of Chemistry; Iran University of Science and Technology; Narmak Tehran Iran
| | - Mina Imani
- Research Laboratory of Inorganic Materials Synthesis, Department of Chemistry; Iran University of Science and Technology; Narmak Tehran Iran
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Belviso C, Lettino A, Cavalcante F. Influence of Synthesis Method on LTA Time-Dependent Stability. Molecules 2018; 23:E2122. [PMID: 30142926 PMCID: PMC6225351 DOI: 10.3390/molecules23092122] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 08/21/2018] [Accepted: 08/22/2018] [Indexed: 11/30/2022] Open
Abstract
Time-stability of LTA zeolite formed by hydrothermal method with or without the action of ultrasonic irradiation was investigated by X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM). The results show that 6 months after the synthesis by hydrothermal process with continuous sonication, LTA evolves into a more stable sodalite, whereas no differences are detected 12 months after LTA synthesis by conventional pre-fused hydrothermal process. These data confirm that using the two approaches, different mechanisms control both zeolite crystallization and time-stability of the newly-formed mineral at solid state. The results are particularly important in the light of the synthetic zeolite application.
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Affiliation(s)
- Claudia Belviso
- Istituto di Metodologie per l'Analisi Ambientale-IMAA-CNR, 85050 Tito Scalo, Italy.
- Istituto di Struttura della Materia-ISM-CNR, 85050 Tito Scalo, Italy.
| | - Antonio Lettino
- Istituto di Metodologie per l'Analisi Ambientale-IMAA-CNR, 85050 Tito Scalo, Italy.
- Istituto di Struttura della Materia-ISM-CNR, 85050 Tito Scalo, Italy.
| | - Francesco Cavalcante
- Istituto di Metodologie per l'Analisi Ambientale-IMAA-CNR, 85050 Tito Scalo, Italy.
- Istituto di Struttura della Materia-ISM-CNR, 85050 Tito Scalo, Italy.
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Belviso C. Ultrasonic vs hydrothermal method: Different approaches to convert fly ash into zeolite. How they affect the stability of synthetic products over time? ULTRASONICS SONOCHEMISTRY 2018; 43:9-14. [PMID: 29555292 DOI: 10.1016/j.ultsonch.2017.12.050] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Revised: 12/28/2017] [Accepted: 12/29/2017] [Indexed: 05/24/2023]
Abstract
The action of direct sonication (US) versus conventional hydrothermal method (HY) was investigated to determine the differences in the crystallization mechanism of zeolite formed from fly ash. The results showed that ultrasonic energy is decisive in very fast faujasite and A-type zeolite transformation into more stable sodalite phase. The data display the main presence of sodalite together with a low amount of faujasite and zeolite A after the first 3 h of sonication. The full transformation of the latter two phases into sodalite takes place after 1 h more of treatment. The samples incubated by hydrothermal process for 3 h, instead, are characterized by the main presence of faujasite and A-type zeolites. The progressive synthesis of sodalite at the expense of the other two phases begins only after 4 h of treatment. The conclusion is that the crystallization of zeolites by ultrasonic and hydrothermal method proceeds via two different mechanisms. The data also show that the two approaches affect the stability of the synthetic products in a different way over the years.
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Affiliation(s)
- Claudia Belviso
- Istituto di Metodologie per l'Analisi Ambientale - IMAA-CNR, Tito Scalo (PZ) 85050, Italy; Istituto di Struttura della Materia - ISM-CNR, Area di Tito Scalo (PZ) 85050, Italy.
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Aldahri T, Behin J, Kazemian H, Rohani S. Effect of microwave irradiation on crystal growth of zeolitized coal fly ash with different solid/liquid ratios. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2017.08.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Khoshbin R, Karimzadeh R. Synthesis of mesoporous ZSM-5 from rice husk ash with ultrasound assisted alkali-treatment method used in catalytic cracking of light naphtha. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2017.04.024] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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28
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DeNOx Abatement Modelling over Sonically Prepared Copper USY and ZSM5 Structured Catalysts. Catalysts 2017. [DOI: 10.3390/catal7070205] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Khoshbin R, Karimzadeh R. The beneficial use of ultrasound in free template synthesis of nanostructured ZSM-5 zeolite from rice husk ash used in catalytic cracking of light naphtha: Effect of irradiation power. ADV POWDER TECHNOL 2017. [DOI: 10.1016/j.apt.2017.01.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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El Maksod IHA, Kosa S, Hegazy EZ. The Effect of Preparation Conditions on the Removal Efficiency of Water Pollutants Using LTA Zeolite. JOURNAL OF WATER RESOURCE AND PROTECTION 2017; 09:811-821. [DOI: 10.4236/jwarp.2017.97054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Ojumu TV, Du Plessis PW, Petrik LF. Synthesis of zeolite A from coal fly ash using ultrasonic treatment--A replacement for fusion step. ULTRASONICS SONOCHEMISTRY 2016; 31:342-349. [PMID: 26964958 DOI: 10.1016/j.ultsonch.2016.01.016] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 01/15/2016] [Accepted: 01/15/2016] [Indexed: 06/05/2023]
Abstract
The synthesis of zeolites from fly ash has become an increasingly promising remedy to the crisis of coal fly ash production and disposal in South Africa. In recent studies, South African fly ash was proven to be a suitable feedstock for the synthesis of essential industrially used zeolite A. However, the process involves a costly energy intensive step whereby fly ash is fused at high temperatures, which may make the process economically unattractive on a large scale. The aim of this study is to investigate the possibility of replacing high temperature fusion with less energy intensive sonochemical treatment for the synthesis of zeolite A. Sonochemical treatment was first thought possible due to the violent cavitation caused by high intensity sonication. The results of the study showed that fusion can be replaced by 10 min of high intensity sonication. The incorporation of sonication also consequently reduced the crystallization temperature of the process making it possible to synthesize a pure phase zeolite A at lower temperatures and reduced times. This study effectively developed a novel process to replace the energy intensive fusion step with a short, easy and inexpensive treatment. Scale up of this synthesis approach may proffer a promising alternative option to the anticipated energy demand of the synthesis of fly ash-based zeolite with fusion method.
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Affiliation(s)
- Tunde V Ojumu
- Department of Chemical Engineering, Cape Peninsula University of Technology, Cape Town, South Africa.
| | - Pieter W Du Plessis
- Department of Chemical Engineering, Cape Peninsula University of Technology, Cape Town, South Africa.
| | - Leslie F Petrik
- Department of Environmental Nano Sciences, University of the Western Cape, Bellville, South Africa.
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Behin J, Kazemian H, Rohani S. Sonochemical synthesis of zeolite NaP from clinoptilolite. ULTRASONICS SONOCHEMISTRY 2016; 28:400-408. [PMID: 26341462 DOI: 10.1016/j.ultsonch.2015.08.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Revised: 07/31/2015] [Accepted: 08/28/2015] [Indexed: 06/05/2023]
Abstract
In the present work, natural clinoptilolite was converted to zeolite NaP using ultrasonic energy, in which the transformation time shortened remarkably. The effect of post-synthesis treatment using conventional hydrothermal was also investigated. The synthesized powders were characterized by XRD, TGA/DTA, SEM, and PSD analysis. The results showed that, increasing the sonication time (energy) has no significant effect on the product's morphology. The crystallinity of the synthesized samples increased slightly with increasing sonication time, but their yield remained relatively unchanged. Furthermore, post-synthesis hydrothermal treatment showed very little influence on properties of the final product. Because the ultrasonic irradiation creates acoustic cavitation cracks on the surface structure of clinoptilolite particulates and increases the concentration of soluble alumino-silicate species, which favors the prevailing super-saturation, crystallization and crystal growth of zeolite NaP happen faster. The particles of zeolite NaP synthesized by ultrasonic irradiation consist of small crystallites of uniform size.
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Affiliation(s)
- Jamshid Behin
- Department of Chemical and Biochemical Engineering, University of Western Ontario (UWO), London, Ontario, Canada; Department of Chemical Engineering, Razi University, Kermanshah, Iran
| | - Hossein Kazemian
- Department of Chemical and Biochemical Engineering, University of Western Ontario (UWO), London, Ontario, Canada.
| | - Sohrab Rohani
- Department of Chemical and Biochemical Engineering, University of Western Ontario (UWO), London, Ontario, Canada.
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Bukhari SS, Rohani S, Kazemian H. Effect of ultrasound energy on the zeolitization of chemical extracts from fused coal fly ash. ULTRASONICS SONOCHEMISTRY 2016; 28:47-53. [PMID: 26384882 DOI: 10.1016/j.ultsonch.2015.06.031] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2015] [Revised: 06/22/2015] [Accepted: 06/30/2015] [Indexed: 06/05/2023]
Abstract
This paper investigates the effects of ultrasound (UTS) energy at different temperatures on the zeolitization of aluminosilicate constituents of coal fly ash. UTS energy irradiated directly into the reaction mixture utilizing a probe immersed into the reaction mixture, unlike previously reported works that have used UTS baths. Controlled synthesis was also conducted at constant stirring and at the same temperatures using conventional heating. The precursor reaction solution was obtained by first fusing the coal fly ash with sodium hydroxide at 550°C followed by dissolution in water and filtration. The synthesized samples were characterized by XRF, XRD, SEM and TGA. The crystallinity of crystals produced with UTS assisted conversion compared to conventional conversion at 85°C was twice as high. UTS energy also reduced the induction time from 60 min to 40 min and from 80 min to 60 min for reaction temperatures of 95°C and 85°C, respectively. Prolonging the UTS irradiation at 95°C resulted in the conversion of zeolite-A crystals to hydroxysodalite, which is a more stable zeolitic phase. It was found that at 85°C coupled with ultrasound energy produced the best crystalline structure with a pure single phase of zeolite-A. It has been shown that crystallization using UTS energy can produce zeolitic crystals at lower temperatures and within 1h, dramatically cutting the synthesis time of zeolite.
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Affiliation(s)
- Syed Salman Bukhari
- Department of Chemical and Biochemical Engineering, Western University (UWO), London, Ontario, Canada
| | - Sohrab Rohani
- Department of Chemical and Biochemical Engineering, Western University (UWO), London, Ontario, Canada.
| | - Hossein Kazemian
- Department of Chemical and Biochemical Engineering, Western University (UWO), London, Ontario, Canada.
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Vaičiukynienė D, Kantautas A, Vaitkevičius V, Jakevičius L, Rudžionis Ž, Paškevičius M. Effects of ultrasonic treatment on zeolite NaA synthesized from by-product silica. ULTRASONICS SONOCHEMISTRY 2015; 27:515-521. [PMID: 26186874 DOI: 10.1016/j.ultsonch.2015.06.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Revised: 05/19/2015] [Accepted: 06/01/2015] [Indexed: 05/25/2023]
Abstract
The synthesis of zeolite NaA from silica by-product was carried out in the presence of 20 kHz ultrasound at room temperature. Zeolites obtained in this type of synthesis were compared to zeolites obtained by performing conventional static syntheses under similar conditions. The sonication effects on zeolite NaA synthesis were characterized by phase identification, crystallinity etc. The effects of different parameters such as crystallization time and initial materials preparation methods on the crystallinity and morphology of the synthesized zeolites were investigated. The final products were characterized by XRD and FT-IR. It was possible to obtain crystalline zeolite NaA from by-product silica in the presence of ultrasound.
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Affiliation(s)
- Danutė Vaičiukynienė
- Faculty of Civil Engineering and Architecture, Kaunas University of Technology, Kaunas, Lithuania.
| | - Aras Kantautas
- Faculty of Chemical Technology, Kaunas University of Technology, Kaunas, Lithuania.
| | - Vitoldas Vaitkevičius
- Faculty of Civil Engineering and Architecture, Kaunas University of Technology, Kaunas, Lithuania.
| | - Leonas Jakevičius
- Faculty of Fundamental Sciences, Kaunas University of Technology, Kaunas, Lithuania. leonas.jackevicius.@ktu.lt
| | - Žymantas Rudžionis
- Faculty of Civil Engineering and Architecture, Kaunas University of Technology, Kaunas, Lithuania.
| | - Mantas Paškevičius
- Faculty of Civil Engineering and Architecture, Kaunas University of Technology, Kaunas, Lithuania.
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Charghand M, Haghighi M, Aghamohammadi S. The beneficial use of ultrasound in synthesis of nanostructured Ce-doped SAPO-34 used in methanol conversion to light olefins. ULTRASONICS SONOCHEMISTRY 2014; 21:1827-1838. [PMID: 24704064 DOI: 10.1016/j.ultsonch.2014.03.011] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2014] [Revised: 03/11/2014] [Accepted: 03/12/2014] [Indexed: 06/03/2023]
Abstract
Methanol to olefins process is an interesting route for synthesis of light olefins over nanostructured catalysts. The present research deals with catalyst development by sonochemical method for methanol to olefins reaction with the aim of reaching the most efficient catalyst. The CeSAPO-34 catalyst was prepared via ultrasound assisted hydrothermal method and characterized by XRD, FESEM, PSD, EDX, BET and FTIR techniques. The characteristics and performance of this sample were compared to the catalyst prepared by conventional hydrothermal method. XRD patterns reflected the higher crystallinity of the catalyst synthesized by ultrasound application. In comparison, particles with smaller sizes obtained by applying ultrasonic irradiation. The catalyst obtained using ultrasound had the longer lifetime and sustained desired light olefins at higher values.
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Affiliation(s)
- Mojtaba Charghand
- Chemical Engineering Faculty, Sahand University of Technology, P.O. Box 51335-1996, Sahand New Town, Tabriz, Iran; Reactor and Catalysis Research Center (RCRC), Sahand University of Technology, P.O. Box 51335-1996, Sahand New Town, Tabriz, Iran
| | - Mohammad Haghighi
- Chemical Engineering Faculty, Sahand University of Technology, P.O. Box 51335-1996, Sahand New Town, Tabriz, Iran; Reactor and Catalysis Research Center (RCRC), Sahand University of Technology, P.O. Box 51335-1996, Sahand New Town, Tabriz, Iran.
| | - Sogand Aghamohammadi
- Chemical Engineering Faculty, Sahand University of Technology, P.O. Box 51335-1996, Sahand New Town, Tabriz, Iran; Reactor and Catalysis Research Center (RCRC), Sahand University of Technology, P.O. Box 51335-1996, Sahand New Town, Tabriz, Iran
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Zhu MH, Kumakiri I, Feng ZJ, Hua XM, Xia SL, Hu N, Chen XS, Kita H. Structure Directing Agent-free Synthesis of ZSM-5 Zeolite Membranes Using Coal Fly Ash as Alumina Source. CHEM LETT 2014. [DOI: 10.1246/cl.140059] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mei-Hua Zhu
- Jiangxi Inorganic Membrane Materials Engineering Research Centre, College of Chemistry and Chemical Engineering, Jiangxi Normal University
- Department of Environmental Science and Engineering, Graduate School Science and Engineering, Yamaguchi University
| | - Izumi Kumakiri
- Department of Environmental Science and Engineering, Graduate School Science and Engineering, Yamaguchi University
| | - Zi-Jun Feng
- Jiangxi Inorganic Membrane Materials Engineering Research Centre, College of Chemistry and Chemical Engineering, Jiangxi Normal University
| | - Xue-Mei Hua
- Jiangxi Inorganic Membrane Materials Engineering Research Centre, College of Chemistry and Chemical Engineering, Jiangxi Normal University
| | - Shui-Liang Xia
- Jiangxi Inorganic Membrane Materials Engineering Research Centre, College of Chemistry and Chemical Engineering, Jiangxi Normal University
| | - Na Hu
- Jiangxi Inorganic Membrane Materials Engineering Research Centre, College of Chemistry and Chemical Engineering, Jiangxi Normal University
| | - Xiang-Shu Chen
- Jiangxi Inorganic Membrane Materials Engineering Research Centre, College of Chemistry and Chemical Engineering, Jiangxi Normal University
- Department of Environmental Science and Engineering, Graduate School Science and Engineering, Yamaguchi University
| | - Hidetoshi Kita
- Department of Environmental Science and Engineering, Graduate School Science and Engineering, Yamaguchi University
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37
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Belviso C, Cavalcante F, Di Gennaro S, Lettino A, Palma A, Ragone P, Fiore S. Removal of Mn from aqueous solution using fly ash and its hydrothermal synthetic zeolite. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2014; 137:16-22. [PMID: 24589679 DOI: 10.1016/j.jenvman.2014.01.040] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Revised: 01/27/2014] [Accepted: 01/31/2014] [Indexed: 06/03/2023]
Abstract
A number of water purification processes have been developed in recent years based on the utilisation of low-cost materials with high pollutant removal efficiency. Among these materials, fly ash and zeolite synthesised from fly ash are two examples of high-efficiency adsorbents. Column absorption tests were performed in order to compare the manganese sorption behaviour of an Italian coal fly ash and zeolite synthesised from it. Different masses of both materials (10-60 g) were exposed to solutions containing a total metal concentration of 10 mg/L. Batch adsorption studies were also conducted to determine the effect of time on the removal on Mn sequestration. The results indicate that both materials are effective for the removal of Mn from aqueous solution by precipitation due to the high pH of the solid/liquid mixtures. However, the leaching tests reveal that the amount of Mn removed from the fly ash was greater than that leached from the zeolite, thereby indicating that the metal is partially sequestrated by zeolite.
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Affiliation(s)
- Claudia Belviso
- Institute of Methodologies for Environmental Analysis - National Research Council of Italy (IMAA - CNR), Tito Scalo, Potenza, Italy.
| | - Francesco Cavalcante
- Institute of Methodologies for Environmental Analysis - National Research Council of Italy (IMAA - CNR), Tito Scalo, Potenza, Italy
| | | | - Antonio Lettino
- Institute of Methodologies for Environmental Analysis - National Research Council of Italy (IMAA - CNR), Tito Scalo, Potenza, Italy
| | | | - Pietro Ragone
- Institute of Methodologies for Environmental Analysis - National Research Council of Italy (IMAA - CNR), Tito Scalo, Potenza, Italy
| | - Saverio Fiore
- Institute of Methodologies for Environmental Analysis - National Research Council of Italy (IMAA - CNR), Tito Scalo, Potenza, Italy
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38
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Zhang Z, Li J, Li H, Wang H, Zhu J, He Q. Dynamic formation of zeolite synthesized from fly ash by alkaline hydrothermal conversion. WASTE MANAGEMENT & RESEARCH : THE JOURNAL OF THE INTERNATIONAL SOLID WASTES AND PUBLIC CLEANSING ASSOCIATION, ISWA 2013; 31:1160-1169. [PMID: 24025368 DOI: 10.1177/0734242x13502381] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This study was designed to characterize the dynamic formation of zeolite synthesized from fly ash (ZFA) and to identify the zeolitization mechanisms during a 160-h-long hydrothermal alkaline conversion at 95°C by using fly ash (FA) samples collected from four typical thermoelectric power plants in China, with the purpose of improving ZFA quality. The process of synthesizing ZFA can be fundamentally divided into five stages: induction stage (0-0.5 h), accelerating dissolution stage (0.5-12 h), nucleation and/or crystallization stage (12-24 h), crystal growth stage (24-72 h) and crystal transformation stage (72-160 h). The crystal growth stage determined the quality of zeolite crystallization, coupled with functions of re-assembling the silicon-aluminium tetrahedral network and developing submicro- and/or nanometer microstructure. A 48-h-long hydrothermal conversion generated ZFAs that had a greater specific surface area (26.0-89.4 times) and cation exchange capacity (29.6-71.0 times) than FA, which successfully sequestrated 41-95% of ammonium and 75-98% of phosphate from swine manure. However, over-reaction resulted in more stable hydroxysodalite and/or sodalite, surface agglomeration and cracking, and energy wasting. This work suggests that the reuse of recycled synthesis materials should occur during the fourth step (24-72 h).
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Affiliation(s)
- ZhiJian Zhang
- 1Institute of Environmental Science, College of Environmental and Resource Sciences, ZheJiang University, HangZhou, ZheJiang Province, China
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Belviso C, Cavalcante F, Fiore S. Ultrasonic waves induce rapid zeolite synthesis in a seawater solution. ULTRASONICS SONOCHEMISTRY 2013; 20:32-36. [PMID: 22770723 DOI: 10.1016/j.ultsonch.2012.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Revised: 06/01/2012] [Accepted: 06/02/2012] [Indexed: 06/01/2023]
Abstract
The synthesis of zeolites from fly ash was performed through a low-temperature hydrothermal process with seawater. Compared with the results obtained using the same hydrothermal method but in the absence of sonication, the application of an ultrasonic pre-treatment to the conventional hydrothermal process with seawater reduces the crystallization temperature below that observed when hydrothermal synthesis is performed using distilled water.
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Affiliation(s)
- Claudia Belviso
- Laboratory of Environmental & Medical Geology, Institute of Methodologies for Environmental Analysis-CNR, Tito Scalo, Potenza, Italy.
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Ho WWS, Ng HK, Gan S. Development and characterisation of novel heterogeneous palm oil mill boiler ash-based catalysts for biodiesel production. BIORESOURCE TECHNOLOGY 2012; 125:158-164. [PMID: 23026328 DOI: 10.1016/j.biortech.2012.08.099] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Revised: 08/23/2012] [Accepted: 08/25/2012] [Indexed: 06/01/2023]
Abstract
Novel heterogeneous catalysts from calcium oxide (CaO)/calcined calcium carbonate (CaCO(3)) loaded onto different palm oil mill boiler ashes were synthesised and used in the transesterification of crude palm oil (CPO) with methanol to yield biodiesel. Catalyst preparation parameters including the type of ash support, the weight percentage of CaO and calcined CaCO(3) loadings, as well as the calcination temperature of CaCO(3) were optimised. The catalyst prepared by loading of 15 wt% calcined CaCO(3) at a fixed temperature of 800°C on fly ash exhibited a maximum oil conversion of 94.48%. Thermogravimetric analysis (TGA) revealed that the CaCO(3) was transformed into CaO at 770°C and interacted well with the ash support, whereas rich CaO, Al(2)O(3) and SiO(2) were identified in the composition using X-ray diffraction (XRD). The fine morphology size (<5 μm) and high surface area (1.719 m(2)/g) of the fly ash-based catalyst rendered it the highest catalytic activity.
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Affiliation(s)
- Wilson Wei Sheng Ho
- Department of Mechanical, Materials and Manufacturing Engineering, The University of Nottingham Malaysia Campus, Jalan Broga, 43500 Semenyih, Selangor Darul Ehsan, Malaysia
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