Catalysts are substances that increase the reaction rate of a chemical reaction without being consumed in the process. 82830-49-7, Name is 2-Fluoro-1,4-dimethoxybenzene, SMILES is COC1=CC=C(OC)C(F)=C1, belongs to ethers-buliding-blocks compound. In a document, author is Feng, Mengling, introduce the new discover, Name: 2-Fluoro-1,4-dimethoxybenzene.
Rapid, high-efficient and selective removal of cationic dyes from wastewater using hollow polydopamine microcapsules: Isotherm, kinetics, thermodynamics and mechanism
Developing new adsorbents with high adsorption capacity, rapid adsorption rate as well as good adsorption selectivity are highly demanded for efficiently purifying organic wastewater. We here reported new hollow polydopamine microcapsules (H-PDA-MCs) synthesized by a facile oxidation self-polymerization of dopamine using iron trioxide (Fe2O3) nano-cube as a template and considered as a high-efficiency adsorbent for capturing organic dyes. First, the morphology and microstructure of H-PDA-MCs were investigated through SEM, TEM, FTIR, XRD, N-2 adsorption and Zeta potential. The adsorption performance of H-PDA-MCs was systematically studied. Second, three kinetic models and five isothermal adsorption models were employed to study the adsorption process and the equilibrium adsorption behavior, respectively. Furthermore, the adsorption mechanism was discussed by FTIR, UV and XPS spectra. The results showed that H-PDA-MCs owned good selective adsorption behavior towards cationic dye. At 298.15 K, the maximum adsorption capacity of H-PDA-MCs towards MB was up to 191.55 mg g(-1) and the adsorption equilibrium time was only 60 min. The adsorption kinetic process was in line with the pseudo-second-order kinetic model, and the adsorption equilibrium data was well described by the Langmuir and Temkin isotherm models. The thermodynamic parameters demonstrated that the adsorption is an endothermic and spontaneous process.
The proportionality constant is the rate constant for the particular unimolecular reaction. the reaction rate is directly proportional to the concentration of the reactant. I hope my blog about 82830-49-7 is helpful to your research. Name: 2-Fluoro-1,4-dimethoxybenzene.