Results 11 to 20 of about 215,901 (215)
Current Research in Green and Sustainable Chemistry, 2021 Synthesis of nanoparticles by utilizing some of the green chemistry principles offers a viable and sustainable approach for nanotechnology. Iron nanoparticles (Fe NPs) were synthesised using Artocarpus heterophyllus (Jackfruit) peel extract.
Reena Jain +3 more
doaj +1 more source
Cr(VI) Sorption from Aqueous Solution: A Review
Applied Sciences, 2020 Hexavalent chromium (Cr(VI)) in water systems is a major hazard for living organisms, including humans. The most popular technology currently used to remove Cr(VI) from polluted water is sorption for its effectiveness, ease of use, low cost and ...
Angelo Fenti +4 more
doaj +1 more source
ChemEngineering, 2021 The effect of ultrasound on the degradation of the dye Acid Brown 83 by seven different degradation methods (blank test using only ultrasound, hydrogen peroxide in a neutral medium, hydrogen peroxide in a sulfuric acid medium and hydrogen peroxide in a ...
Gerardo León +4 more
doaj +1 more source
Catalysis Communications, 2023 This study reports the kinetics of free fatty acids esterification in waste frying oil, based on a simpler non-conventional pseudo first-order homogeneous reaction mechanism using a highly-efficient acid heterogeneous catalyst derived from seeds of Açaí (
Danilo Gualberto Zavarize +2 more
doaj +1 more source
Pseudo-almost periodic solutions for first-order neutral differential equations
Advances in Difference Equations, 2018 In this paper, we study a class of first-order neutral differential equations with time-varying delays and coefficients. Employing the fixed point method and differential inequality techniques, easily verifiable delay-independent criteria are established
Yuehua Yu, Shuhua Gong
doaj +1 more source
Isotherm and Kinetics of Fe(II) Adsorption onto Chitosan in a Batch Process [PDF]
Iranica Journal of Energy and Environment, 2011 In this study removal of Fe(II) by chitosan adsorbent was experimentally investigated in a batch system. The adsorbent dose and pH of the metal solution was fixed at 0.15 g and 4, respectively.
Hamideh Radnia +2 more
doaj
Alexandria Engineering Journal, 2022 Kinetic modeling plays a key role in development of large-scale extraction processes. In this study, we modeled the process of extracting essential oils from pomelo (Citrus maxima) peel materials in different kinetics including pseudo first order and ...
Phat T. Dao +4 more
doaj +1 more source
Error Analysis of Absolute Rate Coefficient Extrapolated Under Pseudo-First Order Conditions
Journal of the Turkish Chemical Society, Section A: Chemistry, 2017 Computer-based simulations for the three-body recombination reaction of nitrogen (II) oxide with the hydroxyl radical have been used to estimate the error associated with the pseudo-first order approximation under different simulated conditions.
Luca D'Ottone, Enunuwe Ochonogor
doaj +1 more source
Clean Technologies, 2023 Elucidating physicochemical processes in the degradation of pollutants may optimize their removal from water sources. Although the photodegradation of carbamazepine (CBZ) in Advanced Oxidation Processes (AOPs) has been widely studied, there is no ...
Yuval Shahar, Giora Rytwo
doaj +1 more source
Pseudo-Gaussian and Rank-Based Tests for First-Order Superdiagonal Bilinear Models in Panel Data
Revstat Statistical Journal, 2021 In this paper, locally asymptotically optimal (in the H´ajek-Le Cam sense) parametric, pseudo-Gaussian and rank-based procedures are proposed for the problem of testing randomness against first-order superdiagonal bilinear panel dependence (in large n ...
Aziz Lmakri +3 more
doaj +1 more source