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Huang Q, Wang W, Lai W, Liang B, Xiao B, Gu J, Huang Z, Zeng X, Liu H, Hu H, Yuan W. Preparation of Zeolite A from Ion-Adsorbing Rare Earth Tailings for Selective Adsorption of Pb 2+: An Innovative Approach to Waste Valorization. Molecules 2024; 29:5065. [PMID: 39519704 PMCID: PMC11547643 DOI: 10.3390/molecules29215065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2024] [Revised: 10/14/2024] [Accepted: 10/23/2024] [Indexed: 11/16/2024] Open
Abstract
Ion-adsorbing rare earth tailings (IRETs) contain a large amount of clay minerals, which are a potential source of silicon and aluminum for the preparation of zeolite materials. The complexity of the tailings' composition and the impurity composition are the main difficulties in the controllable preparation of zeolite. Herein, IRETs were treated by classification activation technology for the preparation of IRET-ZEO, which was used for the removal of heavy metal Pb2+ in water. A new method of resource utilization of ion-type rare earth tailings is realized by "treating waste with waste". The results showed that the IRETs were classified and then thermally activated, and the optimal activation parameter was calcination at 850 °C for 1 h. The optimal NaOH concentration used in the crystallization process was 5 mol/L, with a crystallization time of 3 h and a crystallization temperature of 85 °C, and the crystallization product was zeolite A. The removal rate of the Pb2+ solution with an initial concentration of 100 mg/L was as high as 96.7% in an acidic solution with a pH value from 2 to 5.5. In particular, when the solution pH was higher than 4.2, the adsorption rate of Pb2+ was close to 100%. The IRET-ZEO showed a fast adsorption rate (5 min to reach adsorption equilibrium), a large adsorption capacity (378.35 mg/g), excellent acid resistance, and selectivity and regenerability for Pb2+. This work provides a new strategy for the green resource utilization of IRETs and the treatment of lead-containing wastewater.
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Affiliation(s)
- Qiangwei Huang
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
| | - Wenbo Wang
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
| | - Wenhui Lai
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
| | - Binjun Liang
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
- Ganzhou Key Laboratory of Mine Geological Disaster Prevention and Control and Ecological Restoration, Ganzhou 341000, China
| | - Bin Xiao
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
- Ganzhou Key Laboratory of Mine Geological Disaster Prevention and Control and Ecological Restoration, Ganzhou 341000, China
| | - Jihan Gu
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
- Ganzhou Key Laboratory of Mine Geological Disaster Prevention and Control and Ecological Restoration, Ganzhou 341000, China
| | - Zheyu Huang
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
- Ganzhou Key Laboratory of Mine Geological Disaster Prevention and Control and Ecological Restoration, Ganzhou 341000, China
| | - Xiangrong Zeng
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
- Ganzhou Key Laboratory of Mine Geological Disaster Prevention and Control and Ecological Restoration, Ganzhou 341000, China
| | - Hui Liu
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
| | - Haixiang Hu
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
- Ganzhou Key Laboratory of Mine Geological Disaster Prevention and Control and Ecological Restoration, Ganzhou 341000, China
| | - Weiquan Yuan
- School of Resources and Civil Engineering, Gannan University of Science and Technology, Ganzhou 341000, China (B.L.); (J.G.); (Z.H.); (X.Z.); (H.L.)
- Ganzhou Key Laboratory of Mine Geological Disaster Prevention and Control and Ecological Restoration, Ganzhou 341000, China
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Ruíz-Baltazar ÁDJ. Advancements in nanoparticle-modified zeolites for sustainable water treatment: An interdisciplinary review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 946:174373. [PMID: 38964399 DOI: 10.1016/j.scitotenv.2024.174373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 06/05/2024] [Accepted: 06/27/2024] [Indexed: 07/06/2024]
Abstract
The contamination of water sources with heavy metals, dyes, and other pollutants poses significant challenges to environmental sustainability and public health. Traditional water treatment methods often exhibit limitations in effectively addressing these complex contaminants. In response, recent developments in nanotechnology have catalyzed the exploration of novel materials for water remediation, with nanoparticle-doped zeolites emerging as a promising solution. This comprehensive review synthesizes current literature on the integration of nanoparticles into zeolite frameworks for enhanced contaminant removal in water treatment applications. We delve into synthesis methodologies, elucidate mechanistic insights, and evaluate the efficacy of nanoparticle-doped zeolites in targeting specific pollutants, while also assessing considerations of material stability and environmental impact. The review underscores the superior adsorptive and catalytic properties of nanoparticle-doped zeolites, owing to their high surface area, tailored porosity, and enhanced ion-exchange capabilities. Furthermore, we highlight recent advancements in heavy metal and organic pollutant uptake facilitated by these materials. Additionally, we explore the catalytic degradation of contaminants through advanced oxidation processes, demonstrating the multifunctionality of nanoparticle-doped zeolites in water treatment. By providing a comprehensive analysis of existing research, this review aims to guide future developments in the field, promoting the sustainable utilization of nanoparticle-doped zeolites as efficient and versatile materials for water remediation endeavors.
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Affiliation(s)
- Álvaro de Jesús Ruíz-Baltazar
- CONAHCYT-Centro de Física Aplicada y Tecnología Avanzada, Universidad Nacional Autónoma de México, Boulevard Juriquilla 3001, Santiago de Querétaro, Qro. 76230, Mexico.
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Umejuru EC, Mashifana T, Kandjou V, Amani-Beni M, Sadeghifar H, Fayazi M, Karimi-Maleh H, Sithole T. Application of zeolite based nanocomposites for wastewater remediation: Evaluating newer and environmentally benign approaches. ENVIRONMENTAL RESEARCH 2023; 231:116073. [PMID: 37164282 DOI: 10.1016/j.envres.2023.116073] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 05/01/2023] [Accepted: 05/05/2023] [Indexed: 05/12/2023]
Abstract
The presence of heavy metal ions and emerging pollutants in water poses a great risk to various biological ecosystems as a result of their high toxicity. Consequently, devising efficient and environmentally friendly methods to decontaminate these waters is of high interest to many researchers around the world. Among the varied water treatment and desalination means, adsorption and photocatalysis have been widely employed. However, the discussion and analysis of the use of zeolite-based composites as adsorbents are somehow minimal. The porous aluminosilicates (zeolites) are excellent candidates in wastewater treatment owing to various mechanisms of pollutants removal that they possess. The purpose of this review is thus to provide a synopsis of the current developments in the fabrication and application of nanocomposites based on zeolite as adsorbents and photocatalysts for the extraction of heavy metals, dyes and emerging pollutants from wastewaters. The review goes on to look into the effect of weight ratio on photocatalyst, photodegradation pathways, and various factors that influence photocatalysis and adsorption.
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Affiliation(s)
- Emmanuel Christopher Umejuru
- Department of Chemical Engineering, University of Johannesburg, P.O. Box 17011, Doornfontein, 2088, South Africa
| | - Tebogo Mashifana
- Department of Chemical Engineering, University of Johannesburg, P.O. Box 17011, Doornfontein, 2088, South Africa
| | - Vepika Kandjou
- Department of Chemical Engineering, University of Johannesburg, P.O. Box 17011, Doornfontein, 2088, South Africa; Department of Chemical Materials and Metallurgical Engineering (CMME), Faculty of Engineering and Technology (FET), Botswana International University of Science and Technology (BIUST), P/Bag 16, Palapye, Botswana
| | - Majid Amani-Beni
- School of Architecture, Southwest Jiaotong University, 611756, Chengdu, China
| | - Hasan Sadeghifar
- R&D Laboratory, Hollingsworth & Vose (H&V) Company, West Groton, MA, 01452, USA
| | - Mahsa Fayazi
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, PR China
| | - Hassan Karimi-Maleh
- School of Resources and Environment, University of Electronic Science and Technology of China, 611731, Xiyuan Ave, Chengdu, PR China; Department of Chemical Engineering, Quchan University of Technology, Quchan, 9477177870, Iran; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India.
| | - Thandiwe Sithole
- Department of Chemical Engineering, University of Johannesburg, P.O. Box 17011, Doornfontein, 2088, South Africa.
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Sodium modification of low quality natural bentonite as enhanced lead ion adsorbent. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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