Photocatalytic and Kinetics Study of Copper Oxide on the Degradation of Methylene Blue Dye

Riapanitra, Anung; Riyani, Kapti; Setyaningtyas, Tien

doi:10.2991/apr.k.220503.001

Cited by 3 publications

(1 citation statement)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A signifcant change in the absorbance intensity of the MB dye was obtained when the same amount of the MB dye was reacted with 1 mL of H 2 O 2 and 10 mg of ZnO NPs as shown in Figure 8(c). Tis indicated that the ZnO NPs have the catalytic properties to degrade the MB dye [39,54]. Te degradation studies were then investigated by varying MB dye concentration, pH, ZnO NP dosage, temperature, and interaction time [37][38][39].…”

Section: Xrd Analysismentioning

confidence: 99%

Synthesis and Characterization of Parthenium hysterophorus-Mediated ZnO Nanoparticles for Methylene Blue Dye Degradation

Nzilu,

Madivoli,

Makhanu

et al. 2024

Journal of Chemistry

View full text Add to dashboard Cite

Herein, zinc oxide nanoparticles (ZnO NPs) were synthesized using Parthenium hysterophorus whole plant aqueous extract as reducing and capping agents. The synthesized ZnO NPs were characterized via UV-Vis spectroscopy, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and dynamic light scattering (DLS). An intrinsic optical absorbance of ZnO NPs occurred at 337 nm in the UV-Vis spectrum. The FTIR analysis revealed the presence of secondary metabolites responsible for reducing and stabilizing the nanoparticles. Furthermore, SEM and TEM images revealed that ZnO NPs were spherical with an average particle size of 38 nm. The XRD analysis revealed that ZnO NPs had a hexagonal wurtzite crystal structure with a crystallite size of 42.6 nm. The synthesized nanoparticles were investigated for degradation ability against methylene blue dye at varying conditions of ZnO NPs’ dosage, methylene blue concentrations, pH, temperature, and interaction time. Degradation efficiency of 55.69% was obtained at optimal conditions using 50 mg of ZnO NPs, 5 mg/L of MB dye concentration, and pH 12 and at 65°C within 32 minutes. Due to their novel green synthesis route, Parthenium hysterophorus-mediated ZnO NPs are promising candidates for removing persistent organic dyes from aquatic environments.

show abstract

Section: Xrd Analysismentioning

confidence: 99%

Synthesis and Characterization of Parthenium hysterophorus-Mediated ZnO Nanoparticles for Methylene Blue Dye Degradation

Nzilu,

Madivoli,

Makhanu

et al. 2024

Journal of Chemistry

View full text Add to dashboard Cite

show abstract

Tailored spherical-sea urchin-like MnO2-AC/PTA nanocomposites for superior photocatalytic degradation of BPA and Orange II dye, along with bacteria Inactivation: Mechanistic insights

Manikandan,

Ganesan,

Devanesan

et al. 2024

Process Safety and Environmental Protection

View full text Add to dashboard Cite

Phytoassisted synthesis of CuO and Ag–CuO nanocomposite, characterization, chemical sensing of ammonia, degradation of methylene blue

Farooq,

Shujah,

Tahir

et al. 2024

Sci Rep

View full text Add to dashboard Cite

The elimination of hazardous industrial pollutants from aqueous solutions is an emerging area of scientific research and a worldwide problem. An efficient catalyst, Ag–CuO was synthesized for the degradation of methylene blue, the chemical sensing of ammonia. A simple novel synthetic method was reported in which new plant material Capparis decidua was used for the reduction and stabilization of the synthesized nanocatalyst. A Varying amount of Ag was doped into CuO to optimize the best catalyst that met the required objectives. Through this, the Ag–CuO nanocomposite was characterized by XRD, SEM, HR-TEM, EDX, and FTIR techniques. The mechanism of increased catalytic activity with Ag doping involves the formation of charge sink and suppression of drop back probability of charge from conduction to valance band. Herein, 2.7 mol % Ag–CuO exhibited better catalytic activities and it was used through subsequent catalytic experiments. The experimental conditions such as pH, catalyst dose, analyte initial concentration, and contact time were optimized. The as-synthesized nanocomposite demonstrates an excellent degradation efficacy of MB which is 97% at pH 9. More interestingly, the as-synthesized catalyst was successfully applied for the chemical sensing of ammonia even at very low concentrations. The lower limit of detection (LLOD) also called analytic sensitivity was calculated for ammonia sensing and found to be 1.37 ppm.

show abstract

Photocatalytic and Kinetics Study of Copper Oxide on the Degradation of Methylene Blue Dye

Cited by 3 publications

References 12 publications

Synthesis and Characterization of Parthenium hysterophorus-Mediated ZnO Nanoparticles for Methylene Blue Dye Degradation

Synthesis and Characterization of Parthenium hysterophorus-Mediated ZnO Nanoparticles for Methylene Blue Dye Degradation

Tailored spherical-sea urchin-like MnO2-AC/PTA nanocomposites for superior photocatalytic degradation of BPA and Orange II dye, along with bacteria Inactivation: Mechanistic insights

Phytoassisted synthesis of CuO and Ag–CuO nanocomposite, characterization, chemical sensing of ammonia, degradation of methylene blue

Contact Info

Product

Resources

About