Synthesis of zeolites from low-cost feeds and its sustainable environmental applications

Gao, Shuai; Peng, Hong; Song, Bing; Zhang, Jinxuan; Wu, Weixi; Vaughan, James; Zardo, Peter; Vogrin, John; Tulloch, Sylvia; Zhu, Zhonghua

doi:10.1016/j.jece.2022.108995

Cited by 21 publications

(7 citation statements)

References 176 publications

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“…Meskipun zeolit memiliki berbagai jenis struktur, misalnya, 218 jenis struktur zeolit ditemukan pada tahun 2014 dan jumlahnya masih terus bertambah, zeolit dapat diklasifikasikan menjadi tiga katalog sesuai dengan metode produksinya: zeolit alam, zeolit termodifikasi, dan zeolit sintetik [18,33]. Zeolit sintetik lebih sering digunakan karena sifat fisiokimia yang dapat disesuaikan sesuai dengan tujuannya.…”

Section: Hasil Dan Pembahasan Sintetis Zeolit Dari Bahan Alamunclassified

Review : Sintesis Zeolit dari Bahan Alam dan Limbah Buangan

Fitriyah,

Krisnandi

2023

JSE

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Penggunaan zeolit memerlukan biaya yang relatif tinggi untuk sintesis pembuatan zeolitnya. Oleh karena itu perlu adanya alternatif bahan dasar pembuatan zeolit, yang dapat mengurangi biaya preparasi dan sintesis zeolit. Salah satu alternatif sintesis zeolit berasal dari limbah buangan dan bahan alam. Keuntungan lainnya menggunakan bahan alam dan limbah buangan yaitu sebagai salah satu usaha untuk menyelesaikan permasalahan lingkungan. Berdasarkan jurnal tersebut beberapa bahan menggunakan bahan yang berbeda serta metode dan parameter yang berbeda juga namun menunjukkan hasil sintesis yang signifikan dalam pembuatan zeolit sintesis yang dapat diaplikasikan terhadap lingkungan sebagai adsorben

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Section: Hasil Dan Pembahasan Sintetis Zeolit Dari Bahan Alamunclassified

Review : Sintesis Zeolit dari Bahan Alam dan Limbah Buangan

Fitriyah,

Krisnandi

2023

JSE

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“…According to the definition provided by the International Union of Pure and Applied Chemistry (IUPAC), inorganic porous materials with pore sizes smaller than 2 nm are referred to as microporous materials, while those with pore sizes ranging from 2 nm to 50 nm are known as mesoporous materials, and materials with pore sizes exceeding 50 nm are categorized as macroporous materials [30,31]. The scaling up of zeolite-based catalysts is challenged mainly by the high cost required for its synthesis, and there have been efforts to reduce costs for zeolite preparation and enable high-value applications, such as using bagasse fly ash [32], palm oil mill fly ash [33], coal fly ash [34], and so on [35]. Despite possessing strong acidic sites, high thermal and hydrothermal stability, as well as unique "shape selective catalysis" properties, zeolites face limitations in applications within macromolecular reaction systems due to the narrow channels and high diffusion resistance [36].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Mesoporous Zeolites and Their Applications in Catalytic Elimination of Atmospheric Pollutants

Miao,

Wang,

Zhou

et al. 2024

Catalysts

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With increasing environmental awareness, the issue of atmospheric pollution has gained significant attention. Specifically, three types of atmospheric pollutants, namely, nitrogen oxides, volatile organic compounds, and carbon monoxide, have become the focus of widespread concern. In addressing these pollutants, mesoporous zeolites have emerged as promising materials due to their large specific surface area, which enables effective dispersion of active sites, and their large pore volume, which facilitates efficient diffusion. This article provides a comprehensive overview of the preparation methods of mesoporous zeolites and their applications in removing nitrogen oxides, volatile organic compounds, and carbon monoxide. It also highlights the challenges and limitations faced by the application of mesoporous zeolites in pollutant removal and emphasizes their potential as efficient catalysts.

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“…They can selectively take up ammonium ions through ion exchange processes due to exchangeable cations such as sodium, potassium, calcium, and magnesium within their framework (Hu et al, 2021) . Zeolites are also environmentally friendly and stable, and they can be obtained from natural sources or synthesized at a low cost, making them a great option for sustainable water treatment solutions (Gao et al, 2023;Khaleque et al, 2020;Ahmad et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Enhanced Ammonium Adsorption from Aqueous Solutions Using Ethylenediaminetetraacetic Acid (EDTA) Modified Lampung (Indonesia) Natural Zeolite: Isotherm, Kinetic, and Thermodynamic Studies

Abelta,

Qadri,

Febrina

et al. 2024

Sci. Technol. Indones

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The environmental concern related to excessive ammonium in water bodies necessitates efficient and cost-effective removal techniques. This study investigated the modification of natural zeolite collected from the Tanggamus district of Lampung Province, Indonesia, with ethylenediaminetetraacetic acid (EDTA) to enhance its performance for ammonium adsorption from aqueous solution. The modified and natural zeolites were characterized using X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), N2 adsorption-desorption isotherm, and scanning electron microscopy (SEM). Results indicated that the modification did not cause significant structural changes but increased the mesoporosity of the zeolites, which was beneficial for ammonium adsorption. The adsorption studies revealed that the EDTA modified zeolites consistently outperformed the natural zeolite and that the adsorption process was exothermic in nature. The Langmuir and Freundlich isotherm models fit the adsorption data well, indicating that the adsorption process occurs on both homogenous and heterogeneous surfaces. Thermodynamic studies confirmed that the adsorption process was exothermic and that the EDTA modification increased the spontaneity of the ammonium adsorption process. Overall, this study highlights the potential of EDTA-modified zeolites as an effective material for ammonium removal from aqueous solutions.

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Synthesis of zeolites from low-cost feeds and its sustainable environmental applications

Cited by 21 publications

References 176 publications

Review : Sintesis Zeolit dari Bahan Alam dan Limbah Buangan

Review : Sintesis Zeolit dari Bahan Alam dan Limbah Buangan

Preparation of Mesoporous Zeolites and Their Applications in Catalytic Elimination of Atmospheric Pollutants

Enhanced Ammonium Adsorption from Aqueous Solutions Using Ethylenediaminetetraacetic Acid (EDTA) Modified Lampung (Indonesia) Natural Zeolite: Isotherm, Kinetic, and Thermodynamic Studies

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