Synthesis of Poly(cyclotriphosphazene-co-4,4′-diaminodiphenysulfone) Microspheres and Their Adsorption Properties for Cationic Dyes (Methylene Blue)

Zou, Jiaming; Liao, Kaifa; Li, Xiang; Liu, Mouwu; Xie, Fan; Yu, Jianglai; An, Xiaonan; Wang, Yanfei

doi:10.1007/s10904-019-01235-8

Cited by 16 publications

(3 citation statements)

References 34 publications

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“…8−13 Adsorption in comparison to other techniques is a more efficient and non-destructive approach, owing to its low consumption of energy, simple design and operation, high efficiency, environmental friendliness, and cost-effective nature. 14 Assorted adsorbents have been developed for the adsorption process like graphene oxide, 15 zeolites, 16 clay, 11 chitin, 17 agriculture waste, 18 and mGO/PVA CGs. 19 However, these materials face major difficulty in separation from the solution.…”

Section: Introductionmentioning

confidence: 99%

“…Certainly, scientific research communities have developed numerous technologies such as biological processes, membrane processing, advanced oxidation processes, chemical and electrical techniques, coagulation, chemical precipitation, and adsorption for the removal of dyes from water effluents. − Adsorption in comparison to other techniques is a more efficient and non-destructive approach, owing to its low consumption of energy, simple design and operation, high efficiency, environmental friendliness, and cost-effective nature . Assorted adsorbents have been developed for the adsorption process like graphene oxide, zeolites, clay, chitin, agriculture waste, and mGO/PVA CGs .…”

Section: Introductionmentioning

confidence: 99%

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Magnetic Graphene Oxide/Chitin Nanocomposites for Efficient Adsorption of Methylene Blue and Crystal Violet from Aqueous Solutions

Gautam

Hooda

2020

J. Chem. Eng. Data

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The present study is focused on the synthesis of prominent magnetic graphene oxide/chitin nanocomposites, which behaves as an adsorbent for organic dyes under visible light. The nanocomposites were characterized using physicochemical techniques such as X-ray diffraction, Fourier transform infrared spectroscopy, Raman spectroscopy, vibrating-sample magnetometer, scanning electron microscopy, and transmission electron microscopy. A band gap energy of 2.01 eV was evaluated from Tauc and Davis–Mott plots. Batch adsorption studies were performed on crystal violet and methylene blue dyes with varying parameters such as time, pH, concentration, dosage, and temperature, which resulted to excellent adsorption activities of 403.78 mg/g for crystal violet and 332.61 mg/g for methylene blue. The as-synthesized nanocomposite showed excellent recovery capability, retaining its adsorption efficiency even after nine cycles of regeneration. The adsorption equilibrium data fitted well into the pseudo-second-order model and Langmuir isotherm model, while the spontaneity and exothermic nature of the adsorption phenomenon are demonstrated by thermodynamic studies. A comparative adsorption study results to a selective adsorption of cationic dyes over anionic ones, which goes in conformity with the high negative value of zeta potential obtained at neutral pH.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magnetic Graphene Oxide/Chitin Nanocomposites for Efficient Adsorption of Methylene Blue and Crystal Violet from Aqueous Solutions

Gautam

Hooda

2020

J. Chem. Eng. Data

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“…On the other hand, AA have been reported [108,109,115]. Therefore, MB adsorption depends on the dissociation of carboxylic groups that produces a negative charge on the polymer surface and, thereby, an electrostatic interaction with the long-range cationic dye [116,117]. In contrast, the HEMA monomer does not have carboxyl groups in its structure that can be ionized; but it does have -OH groups that can form short-range interactions with MB molecules, such as hydrogen bridges [38,106].…”

Section: Effect Of Adsorbent Amount and Ph Of Medium On Mb Adsorptionmentioning

confidence: 99%

Nanocellulose bio-based composites for the removal of methylene blue from water: An experimental and theoretical exploration

Oyarce

Cantero-López

Yáñez

et al. 2022

Journal of Molecular Liquids

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Electrospinning of Sodium Alginate/Copper Oxide Nanofibrous Composite Membrane and Its Application of Cationic Dye Adsorption

Gao,

Wang,

Lou

2024

ChemistrySelect

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Dye wastewater is becoming one of the most significant sources of water pollution, and its impact on human survival is immeasurable. In this study, we successfully synthesized a nanofiber membrane with environmentally friendly and efficient properties using electrospinning of a mixture of sodium alginate (SA) and copper oxide (CuO) nanoparticles, aimed at effective dye removal. The adsorption performance of the SA/CuO nanofiber membrane was evaluated using the cationic dye methylene blue (MB). The maximum adsorption capacity of the nanofiber membrane was increased significantly with the addition of CuO nanoparticles, reaching a maximum value of 1633.4 mg g−1, almost twice as much as that of pure SA membrane. The adsorption kinetics follows the pseudo‐second‐order model, where chemisorption acts as the rate‐limiting step. The adsorption isotherm data indicate that the adsorption is monolayer. The nanofibrous membranes showed better dye removal under an alkaline environment. After four cycles of adsorption/desorption, the MB removal efficiency remained at 70.1% of the original adsorption capacity. The addition of CuO nanoparticles facilitated the adsorption of MB dyes, while the form of the nanofibrous membrane is easily recoverable and reusable. Therefore, the as‐prepared SA/CuO nanofibrous composite membrane is a potentially favorable adsorbent material for wastewater treatment applications.

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Synthesis of Poly(cyclotriphosphazene-co-4,4′-diaminodiphenysulfone) Microspheres and Their Adsorption Properties for Cationic Dyes (Methylene Blue)

Cited by 16 publications

References 34 publications

Magnetic Graphene Oxide/Chitin Nanocomposites for Efficient Adsorption of Methylene Blue and Crystal Violet from Aqueous Solutions

Magnetic Graphene Oxide/Chitin Nanocomposites for Efficient Adsorption of Methylene Blue and Crystal Violet from Aqueous Solutions

Nanocellulose bio-based composites for the removal of methylene blue from water: An experimental and theoretical exploration

Electrospinning of Sodium Alginate/Copper Oxide Nanofibrous Composite Membrane and Its Application of Cationic Dye Adsorption

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