Synthesis of Ag4Bi2O5 nanoparticles and evaluation of their photocatalytic activity

Behnood, Reza; Sodeifian, Gholamhossein

doi:10.1016/j.jphotochem.2022.113776

Cited by 3 publications

(2 citation statements)

References 42 publications

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“…The particles with no organic solvent are created. The particle size distribution can be controlled by operating variables [341][342][343][344][345][346][347]. A huge number of SC-CO 2 -based strategies for the production of micro and nanoparticles are accessible (Tab.…”

Section: Production Of Micro and Nanoparticles By Supercritical Carbo...mentioning

confidence: 99%

Solubility, Extraction, and Nanoparticles Production in Supercritical Carbon Dioxide: A Mini‐Review

Sodeifian

Usefi

2022

ChemBioEng Reviews

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Supercritical carbon dioxide (SC‐CO2) is CO2 that is stored beyond its critical point of 7.4 MPa and 31.1 °C. Given the request for consumption of a green solvent for the environment, SC‐CO2 is widely utilized in chemical, food, and pharmaceutical industries. To design material and drug production processes using supercritical fluid (SCF) technology, knowledge of their solubility is important. Temperature and pressure are the main factors in the study of solubility. Solubility data are then evaluated using equation of state, semi‐empirical, and intelligence models to establish suitable correlations. SC‐CO2 is one of the most important materials used in SCFs to study solubility. Another application of SC‐CO2 is in the field of material extraction to reduce the consumption of organic solvents. Nanoparticles production in drug industry is another advantage of SC‐CO2. Micro and nanoparticles can be produced using SCF techniques. In this review, the applications of SC‐CO2 in drug solubility, extraction of valuable materials, and nanoparticles production for pharmaceutical processes are reported and discussed. Finally, the main challenges are explained.

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Section: Production Of Micro and Nanoparticles By Supercritical Carbo...mentioning

confidence: 99%

Solubility, Extraction, and Nanoparticles Production in Supercritical Carbon Dioxide: A Mini‐Review

Sodeifian

Usefi

2022

ChemBioEng Reviews

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“…In the present study, NC was compared with other reported solid materials for adsorption and photo-Fenton catalytic degradation of MB as indicated in Table S5 [2,5,[73][74][75][76][77][78][79].…”

Section: Comparison Between Nc and Other Adsorbents And Catalystsmentioning

confidence: 99%

Adsorption and Photo-Fenton Degradation of Methylene Blue Using Nanomagnetite/Potassium Carrageenan Bio-Composite Beads

et al. 2022

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The present study deals with the preparation of nanomagnetite (NM), potassium carrageenan (KC), and nanomagnetite/potassium carrageenan bio-composite beads (NC). Characterization of the prepared solid materials using different physicochemical techniques such as X-ray diffraction analysis (XRD), thermogravimetric analysis (TGA), scanning electron microscopy (SEM), transmission electron microscope (TEM), energy-disperse X-ray spectroscopy (EDX), diffuse reflectance spectrophotometer (DRS), swelling ratio (SR%), N2 adsorption, pH of point of zero charges (pHPZC), and Fourier transform infrared spectroscopy (FTIR). Comparing between adsorption and photo-Fenton degradation process for methylene blue (MB) on the surface of the prepared solid materials. Nanomagnetite/potassium carrageenan bio-composite (NC) exhibited high specific surface area (406 m2/g), mesoporosity (pore radius, 3.64 nm), point of zero charge around pH6.0, and the occurrence of abundant oxygen-containing functional groups. Comparison between adsorption and photo-Fenton oxidation process for methylene blue (MB) was carried out under different application conditions. NC exhibited the maximum adsorption capacity with 374.50 mg/g at 40 °C after 24 h of shaking time while 96.9% of MB was completely degraded after 20 min of photo-Fenton process. Langmuir's adsorption model for MB onto the investigated solid materials is the best-fitted adsorption model based on the higher correlation coefficient values (0.9771–0.9999). Kinetic and thermodynamic measurements prove that adsorption follows PSO, endothermic, and spontaneous process, while photo-Fenton degradation of MB achieves PFO, nonspontaneous, and endothermic process. Photo-Fenton degradation is a fast and simple technique at a lower concentration of dye (< 40 mg/L) while at higher dye concentration, the adsorption process is preferred in the removal of that dye.

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Novel green CQDs/ZnO binary photocatalyst synthesis for efficient visible light irradiation of organic dye degradation for environmental remediation

Shalini,

Sasikala,

Tharani

et al. 2024

Journal of Molecular Liquids

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Synthesis of Ag4Bi2O5 nanoparticles and evaluation of their photocatalytic activity

Cited by 3 publications

References 42 publications

Solubility, Extraction, and Nanoparticles Production in Supercritical Carbon Dioxide: A Mini‐Review

Solubility, Extraction, and Nanoparticles Production in Supercritical Carbon Dioxide: A Mini‐Review

Adsorption and Photo-Fenton Degradation of Methylene Blue Using Nanomagnetite/Potassium Carrageenan Bio-Composite Beads

Novel green CQDs/ZnO binary photocatalyst synthesis for efficient visible light irradiation of organic dye degradation for environmental remediation

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