Efficacy assessment of natural zeolite containing wastewater on the adsorption behaviour of Direct Yellow 50 from; equilibrium, kinetics and thermodynamic studies

Alabbad, Eman A.

doi:10.1016/j.arabjc.2021.103041

Cited by 23 publications

(12 citation statements)

References 31 publications

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“…Hằng số tốc độ của quá trình hấp phụ theo mô hình động học bậc nhất là k1 = 0,0222 phút -1 . Kết quả này lớn hơn so với kết quả nghiên cứu của tác giả Eman A. Alabbad [16] về zeolite hấp phụ chất nhuộm màu DY50 (k1 = 0,0092 phút -1 ).…”

Section: ảNh Hưởng Của Thời Gian Hấp Phụ Và Nghiên Cứu độNg Học Hấp Phụunclassified

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Nghiên Cứu Xử Lý Chất Nhuộm Màu Direct Black 22 Bằng Vật Liệu Zeolite

Duyến¹,

Tập²,

Kiên³

et al. 2022

TNUJST

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Nghiên cứu này nhằm mục đích đánh giá khả năng hấp phụ chất nhuộm màu DB22 trong dung dịch nước của zeolite. Kết quả nghiên cứu cho thấy, quá trình hấp phụ chất nhuộm màu của zeolite phụ thuộc vào pH dung dịch, thời gian hấp phụ và nồng độ ban đầu của DB22. Hiệu suất hấp phụ cao nhất đạt được là 69,48% khi pH dung dịch bằng 4, thời gian hấp phụ 120 phút và nồng độ ban đầu của chất nhuộm màu là 12,5 g/L (TOC). Số liệu thực nghiệm được đánh giá dựa trên mô hình đẳng nhiệt hấp phụ Langmuir và Fruendlich. Động học của quá trình hấp phụ được đánh giá theo mô hình động học bậc nhất, bậc hai và Elovich. Kết quả cho thấy quá trình hấp phụ tuân theo mô hình hấp phụ đẳng nhiệt Fruendlich (KF = 1,486 mg.g-1). Động học hấp phụ tuân theo quy luật động học hấp phụ bậc nhất với hằng số tốc độ hấp phụ bằng 0,0222 phút-1 (k1 = 0,0222 phút-1).

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Section: ảNh Hưởng Của Thời Gian Hấp Phụ Và Nghiên Cứu độNg Học Hấp Phụunclassified

“…Kết quả nghiên cứu này cho thấy, mô hình hấp phụ đẳng nhiệt Fruendlich phù hợp hơn để mô tả cân bằng hấp phụ đẳng nhiệt. Kết quả nghiên cứu này phù hợp với kết quả nghiên cứu của một số tác giả trên thế giới[16],[17]. Các thông số của mô hình đẳng nhiệt hấp phụ DB22…”

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Nghiên Cứu Xử Lý Chất Nhuộm Màu Direct Black 22 Bằng Vật Liệu Zeolite

Duyến¹,

Tập²,

Kiên³

et al. 2022

TNUJST

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“…Pemanfaatan zeolit alam sebagai adsorben pewarna sudah cukup sering digunakan, Amelia & Maryudi [8] menggunakan pewarna methylene blue menghasilkan penyerapan warna menggunakan zeolit sekitar 32,11%, yellow dye juga pernah digunakan pada penelitian Alabbad [9] menujukkan bahwa zeolit 0,05 gram dapat menyerap yellow dye sekitar 58,63%, sementara pada penelitian Sarabadan et al [10] menggunakan pewarna kristal violet menunjukkan kapasitas adsorpsi maksimum zeolit alam adalah 177,75 mg/g. Berdasarkan beberapa penelitian tersebut dapat dilihat bahwa belum terdapat pewarna alami yang diaplikasikan sebagai bahan adsorbat pada zeolit.…”

Section: Pendahuluanunclassified

Aktivasi Zeolit Alam Sebagai Adsorben Pewarna Alami Kulit Buah Naga (Pitaya)

Hidayah

Munasir

2022

JKFI

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Natural zeolite is one of the alternative adsorbents with good absorption capabilities, including in absorbing color. The adsorption ability of zeolite can be increased by the activation process because it can increase the Si/Al ratio and pore size. Dragon fruit peel is a natural material that can be used as a natural dye because it contains betacyanin pigments which are equivalent to synthetic dyes. This study aimed to investigate the characteristics of activated green and brown zeolite and their adsorption ability on natural dyes of dragon fruit peel. Zeolite was activated chemically using 3M HCl solution and physically through a heating process of 500°C, then characterized using XRD and FTIR. The zeolite adsorption process was carried out with variations in contact time of 30, 60 and 90 minutes and variations in the mass of the adsorbent 0.1, 0.3 and 0.5 grams. The results of XRD analysis showed that the green and brown zeolite contained mordenite, nepheline and quartz minerals. The highest percentage of color degradation in the adsorption process was in brown zeolite at 27.70% at a contact time of 90 minutes and 88.2% at an adsorbent mass of 0.5 grams. Differences in brown zeolite before and after adsorption can be seen from the shift in the wavelength of each functional group due to the interaction with dragon fruit peel.

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“… 13 , 14 This method is quite simple, inexpensive, and sensitive to harmful dyes. The traditional adsorbents are often used as activated carbon derived from plants, 15 − 17 zeolite, 18 , 19 montmorillonite, 20 − 22 biochar from bagasse, rice husks, 23 , 24 or the aerogels from cellulose. 25 − 27 However, these materials are hydrophilic materials and well dispersed in aquatic environments, so they could be released into water partially during adsorption.…”

Section: Introductionmentioning

confidence: 99%

“…Many methods exist for dye removal, including adsorption, , encapsulation, degradation, and photodegradation. , Using adsorbents with a porous structure and a large surface area are one of the common methods commonly used for the treatment of MB wastewater problems. , This method is quite simple, inexpensive, and sensitive to harmful dyes. The traditional adsorbents are often used as activated carbon derived from plants, − zeolite, , montmorillonite, − biochar from bagasse, rice husks, , or the aerogels from cellulose. − However, these materials are hydrophilic materials and well dispersed in aquatic environments, so they could be released into water partially during adsorption. This reduces their strength and pieces of adsorbents, which are potential risks of water pollution.…”

Section: Introductionmentioning

confidence: 99%

Nanocellulose and Graphene Oxide Aerogels for Adsorption and Removal Methylene Blue from an Aqueous Environment

Nguyen

et al. 2021

ACS Omega

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The characteristics of aerogel materials such as the low density and large surface area enable them to adsorb large amounts of substances, so they show great potential for application in industrial wastewater treatment. Herein, using a combination of completely environmentally friendly materials such as cellulose nanofibers (CNFs) extracted from the petioles of the nipa palm tree and graphene oxide (GO) fabricated by simple solvent evaporation, a composite aerogel was prepared by a freeze-drying method. The obtained aerogel possessed a light density of 0.0264 g/cm 3 and a porosity of more than 98.2%. It was able to withstand a weight as much as 2500 times with the maximum force (1479.5 N) to break up 0.2 g of an aerogel by compression strength testing and was stable in the aquatic environment, enabling it to be reused five times with an adsorption capacity over 90%. The CNF/GO aerogel can recover higher than 85% after 30 consecutive compression recovery cycles, which is convenient for the reusability of this material in wastewater treatments. The obtained aerogel also showed a good interaction between the component phases, a high thermal stability, a 3D network structure combined with thin walls and pores with a large specific surface area. In addition, the aerogel also exhibited a fast adsorption rate for methylene blue (MB) adsorption, a type of waste from the textile industry that pollutes water sources, and it can adsorb more than 99% MB in water in less than 20 min. The excellent adsorption of MB onto the CNF/GO aerogel was driven by electrostatic interactions, which agreed with the pseudo-second-order kinetic model with a correlation coefficient R 2 = 0.9978. The initial results show that the CNF/GO aerogel is a highly durable “green” light material that might be applied in the treatment of domestic organic waste water and is completely recoverable and reusable.

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Efficacy assessment of natural zeolite containing wastewater on the adsorption behaviour of Direct Yellow 50 from; equilibrium, kinetics and thermodynamic studies

Cited by 23 publications

References 31 publications

Nghiên Cứu Xử Lý Chất Nhuộm Màu Direct Black 22 Bằng Vật Liệu Zeolite

Nghiên Cứu Xử Lý Chất Nhuộm Màu Direct Black 22 Bằng Vật Liệu Zeolite

Aktivasi Zeolit Alam Sebagai Adsorben Pewarna Alami Kulit Buah Naga (Pitaya)

Nanocellulose and Graphene Oxide Aerogels for Adsorption and Removal Methylene Blue from an Aqueous Environment

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