Highly efficient and reusable mesoporous zeolite synthetized from a biopolymer for cationic dyes adsorption

Brião, Giani V.; Jahn, Sérgío Luiz; Foletto, Edson Luiz; Dotto, Guilherme L.

doi:10.1016/j.colsurfa.2018.08.019

Cited by 95 publications

(27 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The ∆H increased in this order DB-1 < DB-14 < CR < RY < MB < RhB which displays the same order as dye polarity. This trend is similar with Brião et al where increasing dipole moment between adsorbent and dye resulted in higher adsorption capacity [33]. DB-1 and DB-14 are categorised as insoluble dyes, while the remaining are soluble dye.…”

Section: Adsorption Thermodynamicssupporting

confidence: 89%

Enhanced Removal of Soluble and Insoluble Dyes over Hierarchical Zeolites: Effect of Synthesis Condition

et al. 2020

View full text Add to dashboard Cite

A hierarchical zeolite ZSM-5 with micro and meso-pore was prepared by optimising the most affecting parameter in sequence of desilication and dealumination. The physicochemical properties of zeolite were characterised with XRD, nitrogen adsorption–desorption, FTIR and SEM. The potential of this zeolite for decolorisation of CR, RY, MB, RhB, DB-1 and DB-14 was evaluated with adsorption isotherm, thermodynamics, kinetics, and influencing parameter for adsorption. The unique modification of ZSM-5 resulted in lower crystallinity, easier porosity control, rich terminal silanol and unbridged silanol groups which assisted in higher adsorption capacity. The adsorption capacity of the optimum ZSM-5 was 323, 435, 589, 625, 61 and 244 mg/g for CR, RY, MB, RhB, DB-1 and DB-14, respectively. The dye adsorption progressed through pseudo-first-order kinetic and close to the Langmuir model. The adsorption mechanism is proposed mainly through interaction between deprotonated silanol site and the electron-rich dye site.

show abstract

Section: Adsorption Thermodynamicssupporting

confidence: 89%

Enhanced Removal of Soluble and Insoluble Dyes over Hierarchical Zeolites: Effect of Synthesis Condition

et al. 2020

View full text Add to dashboard Cite

show abstract

“…The experiments were carried out in a series of Erlenmeyer flask (250 mL) containing MB dye solution (100 mL) with different initial MB dye concentrations (25-200 mg/L). The different dosages of SATCS (0.02-0.2 g) were added to the 100 mL of MB dye solution with different levels of pH (3)(4)(5)(6)(7)(8)(9)(10), and agitated at a fixed shaking speed of 110 strokes/min at 303 K by using a water bath (WNB7-45, Memmert, Germany). After the adsorption process, the adsorbents was separated from aqueous solutions using a syringe filter (0.20 µm), and the MB dye uptake was calculated by UV-Vis spectroscopy (HACH DR 2800) at 661 nm.…”

Section: Batch Adsorption Experimentsmentioning

confidence: 99%

“…The discharge of dye contaminated water is one of the most important environmental problems due to its risks on aquatic life and human health [2]. Methylene blue (MB) dye is widely used in the textile industry for dyeing cotton, wood, and leather, in addition to the pharmaceutical industries [3]. MB dye causes harmful effects on human health such as nausea, vomiting, heart rate increasing and eye/skin irritation [4,5].…”

Section: Introductionmentioning

confidence: 99%

Acid-factionalized biomass material for methylene blue dye removal: a comprehensive adsorption and mechanism study

Jawad

Abdulhameed

Mastuli

2020

Journal of Taibah University for Science

190

View full text Add to dashboard Cite

Coconut (Cocos nucifera) shell was chemically treated with sulfuric acid (H2SO4) to produce acid-factionalized biosorbent for methylene blue (MB) dye removal from aqueous environment. Various analytical techniques were utilized to investigate the surface area, surface morphology, crystallinity, elemental composition, and functional group of the sulfuric acid-treated coconut shell (SATCS). The adsorption parameters such as adsorbent dosage (0.02-0.20 g), solution pH (3-10), contact time (0-360 min), and initial MB dye concentration (25-200 mg/L) were studied. The adsorption results were illustrated by pseudo-second order kinetic and Freundlich isotherm models. It was found that SATCS has a maximum adsorption capacity (q max) of 50.6 mg/g at 303 K. The adsorption mechanism of MB dye on the SATCS surface can be assigned to the various types of interactions such as electrostatic attractions, H-bonding interaction, and π-π interaction. This work shows SATCS as promising acid-factionalized biosorbent for removal MB dye.

show abstract

“…Metal organic frameworks (MOFs) or coordination polymers (CPs) have been employed recently for the adsorption of these dyes in aqueous media. This new class of organic-inorganic porous materials have a high surface area, tunable pore geometry, and different topological properties, making them a suitable candidates for the treatment of wastewater through dye adsorption [106][107][108][109][110][111][112][113][114][115][116][117][118][119][120][121][122][123] (Tables 2 and 3).…”

Section: Metal Organic Framework (Mofs): Structural Features and Typesmentioning

confidence: 99%

What triggers dye adsorption by metal organic frameworks? The current perspectives

2020

View full text Add to dashboard Cite

show abstract

Highly efficient and reusable mesoporous zeolite synthetized from a biopolymer for cationic dyes adsorption

Cited by 95 publications

References 36 publications

Enhanced Removal of Soluble and Insoluble Dyes over Hierarchical Zeolites: Effect of Synthesis Condition

Enhanced Removal of Soluble and Insoluble Dyes over Hierarchical Zeolites: Effect of Synthesis Condition

Acid-factionalized biomass material for methylene blue dye removal: a comprehensive adsorption and mechanism study

What triggers dye adsorption by metal organic frameworks? The current perspectives

Contact Info

Product

Resources

About