Removal of crystal violet from aqueous solution using environment-friendly and water-resistance membrane based on polyvinyl/agar/maltodextrin

Hoang, Ngoc Bich; Nguyen, Thuong Thi; Nguyen, Dai Van; Tan, Lam Van

doi:10.1016/j.matpr.2020.09.391

Cited by 7 publications

(5 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…9a), PVA exhibits peaks at 3289 at 1427 cm −1 because of O–H vibrations, peaks at 2919 and 1245 cm −1 attributed to C–H vibrations, a peak at 1724 cm −1 due to CO vibration and another peak at 1083 cm −1 from C–O vibration. 95 However, 3MIL-101(Cr)/1PVA primarily reflects peaks from the major component – MIL-101(Cr) – in its ATR-FTIR spectrum. Similarly, the 3MIL-101(Cr)/1PVA sample's PXRD spectrum (Fig.…”

Section: Resultsmentioning

confidence: 99%

Enhanced moisture sorption through regulated MIL-101(Cr) synthesis and its integration onto heat exchangers

Wee,

Chinnappan,

Shang

et al. 2024

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 99%

Enhanced moisture sorption through regulated MIL-101(Cr) synthesis and its integration onto heat exchangers

Wee,

Chinnappan,

Shang

et al. 2024

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

“…The adsorption kinetic models evaluated include pseudo-first-order (PFO) and PSO. 21,22 The adsorption isotherm models evaluated include Langmuir, Freundlich, Dubinin–Radushkevich (D–R), Temkin. 21 The equations and formulas used are based on Quyen et al’s research.…”

Section: Methodsmentioning

confidence: 99%

“…21,22 The adsorption isotherm models evaluated include Langmuir, Freundlich, Dubinin–Radushkevich (D–R), Temkin. 21 The equations and formulas used are based on Quyen et al’s research. 19…”

Section: Methodsmentioning

confidence: 99%

“…The pH point zero charge (pHpzc) was measured by the method reported in Thuan and Bich's study with little variation. 20,21 In total, 100 mL of 0.1 mol L −1 KCl solution was prepared in an Erlen flask and set at pH values from 2 to 10 (initial pH, pHi) with NaOH and HCl solutions. Add 0.1 g ACCW to the flask and shake for 3 h and leave to stabilize for 24 h at room temperature.…”

Section: The Acid/base Surface and Zeta Potential Measurement (Phpzc)mentioning

confidence: 99%

See 1 more Smart Citation

Synthesis of activated carbon from cotton plant by-products in Vietnam to remove methylene blue and congo red

Nguyen Thi Hong,

Le Quoc,

Ngo

et al. 2024

Journal of Chemical Research

View full text Add to dashboard Cite

Activated carbon from cottonwood was synthesized by microwave-assisted method with activator NaOH. Activated carbon from cottonwood has a rough surface like coral, an amorphous structure with surface functional groups such as O–H, C–H, C=C, and C–O. The surface area and pore size were recorded at 395.48 m2 g−1 and 2.35 nm. The adsorption capacity of activated carbon from cottonwood was evaluated on two groups of anion dyes (congo red) and cation dye (methylene blue) to evaluate the influencing factors and predict the adsorption process. The best adsorption conditions were recorded for methylene blue (time: 30 min, temperature: 30 °C, pH: 10, activated carbon from cottonwood of 1 g L−1, methylene blue of 80 mg L−1, and adsorption capacity of 30.875 mg g−1) and congo red (time: 150 min, temperature: 60 °C, pH: 2, activated carbon from cottonwood of 2 g L−1, congo red of 100 mg L−1, and adsorption capacity of 45.97 mg g−1), respectively. The adsorption process was consistent with the Bangham kinetic and Dubinin–Radushkevich (D–R) isotherm model. The process of evaluating reusability shows that activated carbon from cottonwood can be reused 4 times.

show abstract

“…Recently, environmental issues have caused by the discharge of colored wastewater containing dye effluents with highly noxious nature and adequate un‐treatment from textile factories, which adversely impacted on marine and human life. Highly colored effluents with the presence of malachite green, 1–3 crystal violet, 4–6 methyl orange, 7 congo red, 8 acid blue 92, 9 and methylene blue 10 released to water bodies not only cause unsightliness but also reduce light penetration and photosynthesis, which negatively affect on aquatic life. Besides, it is toxic to some organisms, causing direct devastation to aquatic populations and even causing cancer in humans.…”

Section: Introductionmentioning

confidence: 99%

Adsorptive removal of methylene blue dye using durian peel waste reinforced polyvinyl alcohol‐based composite membrane

Pham,

Nguyen,

Phung

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

A large amount of dye effluents with biodegradable and highly toxic nature from the dyeing and finishing processes has discharged into natural water bodies without adequate treatment, which adversely impacted on aquatic life and human health. Herein, polyvinyl alcohol/agarose/maltodextrin composite membrane (PAM)‐reinforced durian skin fiber is fabricated for methylene blue (MB) uptake from aqueous medium. Structural analyses of the as‐prepared composite membrane are conducted using scanning electron microscopy, Fourier‐transform infrared spectroscopy, water contact angle, and nitrogen adsorption/desorption isotherm measurement. The important influence of experimental conditions including exposure time between adsorbates and adsorbents, initial MB concentration, solution temperature, and pH are also explored. Furthermore, thermodynamic behavior, nonlinear isotherms, and kinetics along with possible adsorption mechanism are provided to attain the insight into the adsorption nature. The results show that PAM‐reinforced durian peel waste possesses high MB adsorption capacity (105.54 mg g−1), which was controlled by diffusion and chemisorption mechanism. The thermodynamics of methyl blue removal on the composite membrane suggest that the adsorption is spontaneous, favorable, and endothermic in nature. This contribution is expected to inspire the efficient utilization of agriculture by‐products into eco‐friendly and biodegradable adsorbents to purify the dye‐contaminated water.

show abstract

Removal of crystal violet from aqueous solution using environment-friendly and water-resistance membrane based on polyvinyl/agar/maltodextrin

Cited by 7 publications

References 39 publications

Enhanced moisture sorption through regulated MIL-101(Cr) synthesis and its integration onto heat exchangers

Enhanced moisture sorption through regulated MIL-101(Cr) synthesis and its integration onto heat exchangers

Synthesis of activated carbon from cotton plant by-products in Vietnam to remove methylene blue and congo red

Adsorptive removal of methylene blue dye using durian peel waste reinforced polyvinyl alcohol‐based composite membrane

Contact Info

Product

Resources

About