Synthesis of mesoporous Fe/Al/La trimetallic oxide for photodegradation of various water-soluble dyes: Kinetic, mechanistic, and pH studies

Mukherjee, Arnab; Dhak, Debasis; Hazra, Vishwadeepa; Goswami, Niharika

doi:10.1016/j.envres.2022.114862

Cited by 21 publications

(2 citation statements)

References 70 publications

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“…A prior study found that the most useful model for determining the catalytic activity of pure MB was the first-order model 53 , 59 . Consequently, the first-order kinetic model was investigated by the following equation 62 (Eq. 9 ) to determine the adsorption and photodegradation kinetic of MB in the presence of CAZ with different Cu 2+ molar ratios.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of novel antibacterial nanocomposite CuO/Ag-modified zeolite for removal of MB dye

Yahya,

Samir,

Al-Ariki

et al. 2023

Sci Rep

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Novel CuO/Ag nanocomposites added zeolite (CAZ) were successfully fabricated, and their effectiveness as an antibacterial on S. aureus and MB removal was evaluated. EDX, XRD, and FTIR confirm the presence of the elemental compositions of CAZ. Friable CuO nanorods (10–70 nm in diameter) existed on the surface of the zeolite. Pure zeolite had a higher band gap (5.433 eV) and lower MB removal efficiency than CAZ. The adsorption method by CAZ was more effective at removing MB than photodegradation. 0.10 CAZ had the highest removal effectiveness (~ 99%) and adsorption capacity (~ 70.4 mg g−1) of MB. The inhibitory zone diameter for 0.005 CAZ against S. aureus was 20 mm, while 0.01 CAZ had a diameter of 17 mm. Azithromycin, ceftriaxone, and erythromycin antibiotics demonstrated lower or no efficacy against S. aureus than CAZ. Significant antibacterial activities and wastewater treatment were achieved by CAZ. The combination of photodegradation and adsorption enhanced pollutant removal. It will be interesting to study further the optimal molar ratio for MB removal (0.10 CAZ) in future investigations.

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Section: Resultsmentioning

confidence: 99%

Synthesis of novel antibacterial nanocomposite CuO/Ag-modified zeolite for removal of MB dye

Yahya,

Samir,

Al-Ariki

et al. 2023

Sci Rep

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“…Kλ βcosθ are coming for the La 3+ of perovskite LaNiO 3 and LaNiO 3 @AC nanocomposite materials, its La 3d 5/2 peak disassociation ΔE 1 = 3.9 eV, spin-orbit splitting energy is ΔE 2 = 16.9 eV for the La 3d doublet as shown in Fig. 6 (b) [49], [50], [51]. to the presence of activated carbon (C 1s).…”

Section: Xps Analysismentioning

confidence: 99%

Activated carbon-supported lanthanum nickel oxide (LaNiO3 ) perovskite nanocomposite supercapacitor electrode material exhibiting superior power-density and life cycle

Chowdhury,

Sahis,

Kuiri

et al. 2024

Preprint

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Perovskite LaNiO3 was synthesized with the help of the sol-gel method and LaNiO3@AC nanocomposite was produced via ultrasonication followed by filtration process keeping LaNiO3 and activated carbon (AC) in an NMP solvent. The prepared electrode material was then coated on Ni foam with a mass loading of 28 mg/cm2. Various well-known characterization techniques such as TGA, FTIR, XRD, FESEM, and XPS were used to characterize the crystal structure and surface morphology of the sample. The electrochemical performance of the prepared electrodes was measured with cyclic voltammetry (CV), galvanometric charge-discharge (GCD), and electrochemical spectroscopy (EIS) using 3 M KOH as an electrolyte solution in two electrode configurations. The pure LaNiO3 electrode exhibits a specific capacitance (Cs) of 177.53 F/g at 5 mV/s, cyclic stability with 73.35% capacitance retention after 3000 cycles, energy density of 24.65 W h/kg, and a power density of 1.48 kW/kg. whereas, The LaNiO3@AC nanocomposite electrode delivered a high Cs of 218.57 F/g at a 5 mV/s scan rate with excellent cyclic stability of about 94.57% specific capacitance retention after 3000 cycles, the outstanding energy density of 30.35 W h/kg with a high-power density of 1.58 kW/kg. Additional investigation on the storage contribution using Dunn's, b-fitting, and Randel Savic models produced superior results with the LaNiO3@AC nanocomposite electrode than with the LaNiO3 electrode. DFT analysis further demonstrated LaNiO3 material's strong electrochemical characteristics and stability. Thus, the LaNiO3@AC composite material can be the newest member of the supercapacitor electrode material with superior electrochemical performance.

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Emerging Contaminants of Tannery Sludge and Their Environmental Impact and Health Hazards

Khatun,

Mukherjee,

Dhak

2024

Environmental Engineering and Waste Management

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Synthesis of mesoporous Fe/Al/La trimetallic oxide for photodegradation of various water-soluble dyes: Kinetic, mechanistic, and pH studies

Cited by 21 publications

References 70 publications

Synthesis of novel antibacterial nanocomposite CuO/Ag-modified zeolite for removal of MB dye

Synthesis of novel antibacterial nanocomposite CuO/Ag-modified zeolite for removal of MB dye

Activated carbon-supported lanthanum nickel oxide (LaNiO3 ) perovskite nanocomposite supercapacitor electrode material exhibiting superior power-density and life cycle

Emerging Contaminants of Tannery Sludge and Their Environmental Impact and Health Hazards

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