Study of NiFe2O4 nanoparticles optical properties by a six-flux radiation model towards the photocatalytic hydrogen production

Modified BET theory for actual surfaces: implementation of surface curvature

“…For NiFe 2 O 4 , as in ref. 41 the case is slightly different, and the modified BET equation does not improve the accuracy of the calculation. According to Fig.…”

Engineered magnetic oxides nanoparticles as efficient sorbents for wastewater remediation: a review

“…The type, position, and amount of metal cations in the crystallographic structure of ferrites mastered their physicochemical properties (Kefeni and Mamba 2020;Kusigerski et al 2019;Tatarchuk et al 2017). They are widely used in multiple applications from biomedical to industrial, besides their application in cancer diagnosis, therapy, and drug delivery (Valente et al 2017;Kefeni et al 2020), gas sensors (Šutka and Gross 2016), water splitting, and membrane modifications (Ng et al 2015;Domínguez-Arvizu et al 2019). Later they are used intensively as a catalyst and in pollutant degradation via photodegradation and adsorption (Kefeni and Mamba, 2020;Kefeni et al 2017b;Fayyaz et al 2021;Reddy and Yun 2016).…”

Photocatalytic Reactor Design: Guidelines for Kinetic Investigation

“…The change in light intensity at every location is solved considering the incoming light that is the light from the source plus the scattered light coming from other particles, and the outgoing light, namely the scattered light contribution of that particular location and the loss due to absorption. Here, the wavelength-dependent light interaction properties, the spectral volumetric absorption and scattering coefficients, α λ and σ λ , as well as the scattering phase function, p (Ω′ → Ω), have to be imported to resolve the spectral radiation intensity, I λ,Ω ( s , t ) reaching a given point s ( x ) in space and time t , having a given direction of propagation Ω defined by the polar and azimuthal angles, traveling along distances measured by the spatial parameter s . For the rigorous RTE, isotropic scattering and diffuse reflectance phase functions are usually used. − The accuracy of the solutions is dictated by simplifications made on the scattering spatial distribution function . For symmetry arguments, the six-flux and two-flux ,− approximations are utilized the most.…”