Synthesis and cation exchange capacity of zeolite W from ultra-fine natural zeolite waste

Zijun, Zeng; Effeney, Grea; Millar, Graeme J.; Stephen, Maroun

doi:10.1016/j.eti.2021.101595

Cited by 17 publications

(5 citation statements)

References 70 publications

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“…Spectra were collected with a resolution of 4 cm −1 in the range of 400 cm −1 to 1400 cm −1 and analyzed using OriginPro 9.5 Software (OriginLab Corporation, Northampton, USA) [21,22]. Furthermore, laser diffraction techniques (Master Sizer 2000, APA2000 model from Malvern Instruments Ltd., Cambridge, UK) in the range of 0.01 to 3500 µm were employed [23].…”

Section: Adsorbent Characterizationmentioning

confidence: 99%

Evaluation of Agricultural Soil-Improving Zeolite for Improving Irrigation Water Quality

Núñez-Gómez,

Legua,

Lidón

et al. 2024

Applied Sciences

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With a progressively decreasing availability of water for irrigation, the utilization of lower agronomic quality water sources is becoming more prevalent. Compounds such as sodium and boron, due to their impact on crop development and production, are gaining significance in these water sources. Finding novel methods to immobilize these compounds in irrigation water is a top priority in the global agricultural sector. This study focused on exploring the potential of natural zeolite, commonly used as a soil improver and as a sorbent for sodium and boron in natural agricultural waters. The zeolite exhibited favorable properties, including a surface area of 40 m2/g and a cation-exchange capacity of 1.8 mg/g. Using a central composite factorial design, the zeolite’s capacity to remove sodium and boron from irrigation water was investigated. The results demonstrated significant efficiency in boron removal, while sodium removal was limited, with occasional desorption episodes. Response surface analysis revealed optimal conditions for the removal of each cation. Additionally, adsorption kinetics and pH effects were explored, emphasizing the influence on sodium sorption. Kinetic models were applied, and the pseudo-first-order model proved suitable for describing the sorption kinetics. These findings enhance our understanding of zeolite efficacy in irrigation water purification, emphasizing the complexity of cation interactions in “complex” solutions.

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Section: Adsorbent Characterizationmentioning

confidence: 99%

Evaluation of Agricultural Soil-Improving Zeolite for Improving Irrigation Water Quality

Núñez-Gómez,

Legua,

Lidón

et al. 2024

Applied Sciences

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“…In the equation, “ C ” refers to the concentration of ammonium ions in the extract solution (mg/L), “ V sample ” refers to the solution volume (mL), “ M sample ” refers to the zeolite adsorbent mass (g), and “ M r ” refers to the molecular mass of NH 4 + . CEC is determined following ASTM Standard Test Method D7503-18 (Zijun et al 2021 ) (Table 9 ).…”

Section: Characterization Of the Materialsmentioning

confidence: 99%

Synthesis of zeolite from industrial wastes: a review on characterization and heavy metal and dye removal

Eren,

Türk,

Arslanoğlu

2024

Environ Sci Pollut Res

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Increasing world population, urbanization, and industrialization have led to an increase in demand in production and consumption, resulting in an increase in industrial solid wastes and pollutant levels in water. These two main consequences have become global problems. The high Si and Al content of solid wastes suggests that they can be used as raw materials for the synthesis of zeolites. In this context, when the literature studies conducted to obtain synthetic zeolites are evaluated, it is seen that hydrothermal synthesis method is generally used. In order to improve the performance of the hydrothermal synthesis method in terms of energy cost, synthesis time, and even product quality, additional methods such as alkaline fusion, ultrasonic effect, and microwave support have been developed. The zeolites synthesized by different techniques exhibit superior properties such as high surface area and well-defined pore sizes, thermal stability, high cation exchange capacity, high regeneration ability, and catalytic activity. Due to these specific properties, zeolites are recognized as one of the most effective methods for the removal of pollutants. The toxic properties of heavy metals and dyes in water and their carcinogenic effects in long-term exposure pose a serious risk to living organisms. Therefore, they should be treated at specified levels before discharge to the environment. In this review study, processes including different methods developed for the production of zeolites from industrial solid wastes were evaluated. Studies using synthetic zeolites for the removal of high levels of health and environmental risks such as heavy metals and dyes are reviewed. In addition, EPMA, SEM, EDX, FTIR, BET, AFM, and 29Si and 27Al NMR techniques, which are characterization methods of synthetic zeolites, are presented and the cation exchange capacity, thermodynamics of adsorption, effect of temperature, and pH are investigated. It is expected that energy consumption can be reduced by large-scale applications of alternative techniques developed for zeolite synthesis and their introduction into the industry. It is envisaged that zeolites synthesized by utilizing wastes will be effective in obtaining a green technology. The use of synthesized zeolites in a wide variety of applications, especially in environmental problems, holds great promise. Graphical Abstract

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“…Owing to these properties, along with their high mechanical and thermal stabilities, zeolites have several applications as adsorbents, catalysts, ion exchange matrices, antimicrobial materials, and filter media [ 28 , 29 ]. Specifically, ZSM-5 zeolite is a shape-selective material with uniformly sized pores and has shown excellent results in supporting metals and some organic molecules, enhancing their controlled delivery [ 30 , 31 ].…”

Section: Introductionmentioning

confidence: 99%

Biocidal effects of organometallic materials supported on ZSM-5 Zeolite: Influence of the physicochemical and surface properties

Huenuvil-Pacheco,

Jaramillo,

Abreu

et al. 2024

Heliyon

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Synthesis and cation exchange capacity of zeolite W from ultra-fine natural zeolite waste

Cited by 17 publications

References 70 publications

Evaluation of Agricultural Soil-Improving Zeolite for Improving Irrigation Water Quality

Evaluation of Agricultural Soil-Improving Zeolite for Improving Irrigation Water Quality

Synthesis of zeolite from industrial wastes: a review on characterization and heavy metal and dye removal

Biocidal effects of organometallic materials supported on ZSM-5 Zeolite: Influence of the physicochemical and surface properties

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