Kinetic and Thermodynamic Study of the Photo Catalytic Degradation of Methylene Blue (MB) in Aqueous Solution Using Cadmium Sulphide (CdS) Nanocatalysts

Ali, S. K.; Jan, F. Akbar; Ullah, Rahat; Wajidullah, -; Ullah, Naimat

doi:10.1007/s42250-022-00327-2

Cited by 6 publications

(2 citation statements)

References 28 publications

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“…High specific surface area, high crystallinity, short bulk to surface diffusion, and exciton stability are the advantages of CdS NPs in visible‐light‐driven photocatalysis. There were a few reports on the degradation of methylene blue using cadmium sulfide nanoparticles and their nanocomposites [13–20] …”

Section: Introductionmentioning

confidence: 99%

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Sunlight‐induced Photocatalytic Degradation of Methylene Blue Dye by Magnesium and Silver‐based Cadmium Sulfide Nanoparticles

Jasmine

Ponvel

2022

ChemistrySelect

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The photodegradation activity of nanomaterials is generally studied and used for water purification purposes. The present investigation reports the synthesis of magnesium and silverbased cadmium sulfide nanoparticles (Mg 2 Ag 2 CdS 4 NPs) with a size of ∼ 25 nm for the degradation of methylene blue (MB) dye. The optical properties of the nanoparticles were studied, and the bandgap energy of the nanoparticles was found to be 2.16 eV. The photocatalytic degradation showed the highest photocatalytic activity (88 %) for 90 min. The effects of operating parameters such as the amount of catalyst, initial pH, and the initial dye concentration were studied. The rate constants for various doses were calculated and followed the pseudo-first order. A 75 % degradation of MB dye was found even after five uses. The photocatalyst can significantly contribute to the removal of hazardous toxic chemicals from aqueous solutions from an environmental point of view.[a] J.

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Section: Introductionmentioning

confidence: 99%

“…There were a few reports on the degradation of methylene blue using cadmium sulfide nanoparticles and their nanocomposites. [13][14][15][16][17][18][19][20] Dyes are organic compounds with chromophores and auxochromes. Dyes are generally used as coloring agents in various industries, such as textiles, plastics, cosmetics, and paper.…”

Section: Introductionmentioning

confidence: 99%

Sunlight‐induced Photocatalytic Degradation of Methylene Blue Dye by Magnesium and Silver‐based Cadmium Sulfide Nanoparticles

Jasmine

Ponvel

2022

ChemistrySelect

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Utilization of Synthesized Copper Ferrite/Calcium Alginate Nanocomposite for Adsorption and Photocatalytic Degradation of Malachite Green

Hassan

El-Naggar

Braish

et al. 2023

J Inorg Organomet Polym

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In this article, the effectiveness of two different application methods (photocatalytic degradation and adsorption) onto the created solid nanomaterials for the removal of malachite green (MG) was investigated. Copper ferrite nanoparticles (CF) and copper ferrite/calcium alginate composite (CG) were synthesized as two studied solid samples. By using XRD, TGA, FTIR, DRS, nitrogen adsorption/desorption isotherm, pHPZC, SEM, and TEM, the physicochemical and morphological properties of the solid samples were tested. Sample dose, pH, initial MG concentration, shaking time, ionic strength, UV light power, and temperature were the key experimental parameters that were established. The obtained results demonstrated that at 40 °C, CG reached a greater adsorption capacity (297.62 mg/g). The spontaneous, endothermic, and advantageous adsorption process of MG was proved by the best fitting of pseudo-second order, Elovich, intra-particle diffusion, Langmuir, Dubinin-Radushkevich, and Temkin models onto all the produced materials. The maximum percentage of MG degradation by CG (89.9%) was accomplished by utilizing 1.0 g/L of catalyst mass, an initial MG concentration of 10 mg/L, and 33 W. Arrhenius and Eyring–Polanyi models well applied the MG photodegradation onto the catalyst surface.

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Photocatalytic Degradation of Acidic and Basic Dye by ZnS and Tin-Doped ZnS Nanocatalysts

et al. 2023

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Kinetic and Thermodynamic Study of the Photo Catalytic Degradation of Methylene Blue (MB) in Aqueous Solution Using Cadmium Sulphide (CdS) Nanocatalysts

Cited by 6 publications

References 28 publications

Sunlight‐induced Photocatalytic Degradation of Methylene Blue Dye by Magnesium and Silver‐based Cadmium Sulfide Nanoparticles

Sunlight‐induced Photocatalytic Degradation of Methylene Blue Dye by Magnesium and Silver‐based Cadmium Sulfide Nanoparticles

Utilization of Synthesized Copper Ferrite/Calcium Alginate Nanocomposite for Adsorption and Photocatalytic Degradation of Malachite Green

Photocatalytic Degradation of Acidic and Basic Dye by ZnS and Tin-Doped ZnS Nanocatalysts

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