Reaction kinetics of CO capture into AMP/PZ/DME solid-liquid biphasic solvent.

The non-aqueous solid-liquid biphasic solvent of 2-amino-2-methyl-1-propanol (AMP)/piperazine (PZ)/dipropylene glycol dimethyl ether (DME) features a high CO absorption loading, favorable phase separation behavior and high regeneration efficiency. Different with the liquid-liquid phase change solvent, the reaction kinetics of CO capture into solid-liquid biphasic solvent was rarely studied. In the present work, the reaction kinetics of CO absorption into AMP/PZ/DME solid-liquid biphasic solvent was investigated into the double stirred kettle reactor.

Alcohol regulated phase change absorbent for efficient carbon dioxide capture: Mechanism and energy consumption.

Phase change absorbents based on amine chemical absorption for CO capture exhibit energy-saving potential, but generally suffer from difficulties in CO regeneration. Alcohol, characterized as a protic reagent with a low dielectric constant, can provide free protons to the rich phase of the absorbent, thereby facilitating CO regeneration. In this investigation, N-aminoethylpiperazine (AEP)/sulfolane/HO was employed as the liquid-liquid phase change absorbent, with alcohol serving as the regulator.

Efficient electroreduction of carbon dioxide to formate enabled by bismuth nanosheets enriched dual V vacancy.

The electrocatalytic reduction of carbon dioxide (COER) into formate presents a compelling solution for mitigating dependence on fossil energy and green utilization of CO. Bismuth (Bi) has been gaining recognition as a promising catalyst material for the COER to formate. The performance of Bi catalysts (named as Bi-V) can be significantly improved when they possess single metal atom vacancy.

Enhancing CO capture of an aminoethylethanolamine-based non-aqueous absorbent by using tertiary amine as a proton-transfer mediator: From performance to mechanism.

Non-aqueous absorbents (NAAs) have attracted increasing attention for CO capture because of their great energy-saving potential. Primary diamines which can provide high CO absorption loading are promising candidates for formulating NAAs but suffer disadvantages in regenerability. In this study, a promising strategy that using tertiary amines (TAs) as proton-transfer mediators was proposed to enhance the regenerability of an aminoethylethanolamine (AEEA, diamine)/dimethyl sulfoxide (DMSO) (A/D) NAA.

Improvement of water resistance by FeO/TiO photoelectrocatalysts for formaldehyde removal: experimental and theoretical investigation.

TiO-based photocatalysts are a potential technology for removing indoor formaldehyde (CHOH) owing to their strong photooxidation ability. However, their photooxidation performance is generally weakened when suffering from the competitive adsorption of HO. In a method inspired by the oxygen evolution reaction (OER) to generate intermediates with hydroxyl radicals on the anode electrode catalysts, an electric field was employed in this research and applied to the photooxidation of CHOH to prevent the competitive adsorption of HO.

Novel biphasic amino-functionalized ionic liquid solvent for CO capture: kinetics and regeneration heat duty.

Amino-functionalized ionic liquid biphasic solvents present excellent absorption capacity, regeneration ability, and energy consumption savings, which make them a possible candidate for CO capture. The kinetics and regeneration heat duty of the [TETAH][Lys]-ethanol-water system capturing CO were investigated in this work. The mass transfer and kinetic parameters, including the overall reaction rate constant (k), the reaction rate constant (k), and the enhancement factor (E), were assessed at diverse concentrations and temperatures.

Coupling life cycle assessment with scenario analysis for sustainable management of Disperse blue 60.

Sustainable management of dyeing industry is of paramount importance in order to minimize resource consumption and reduce related environmental impacts. Herein, an environmental study is conducted wherein life cycle assessment (LCA) is applied to a two-scenario process for Disperse blue 60 production with short and long processing chains with different (a) material types, (b) consumptions, (c) processes, and (d) functional units with yields of 300 t/a. The most important influenced substances of the two scenarios were sodium cyanide and electricity next.

Dual-Functionalized Ionic Liquid Biphasic Solvent for Carbon Dioxide Capture: High-Efficiency and Energy Saving.

To address the problems of high viscosity and difficult regeneration of the rich phase solution, a dual-functionalized ionic liquid ([DETAH][Tz]) was dissolved into a 1-propanol-water solvent to form a novel biphasic solvent for CO capture. The rich phase kept 96% of the total CO loading (1.713 mol mol) but only 44% of the total volume, and its viscosity was only 2.

PTK7 expression is associated with lymph node metastasis, ALK and EGFR mutations in lung adenocarcinomas.

Non-small cell lung cancer (NSCLC) is one of the leading causes of cancer death worldwide. Lung adenocarcinoma is the main tumor type of NSCLC. Recent advances in the molecular characterization and personalized therapies have improved NSCLC patient prognosis.

Highly efficient removal of chromium(VI) by Fe/Ni bimetallic nanoparticles in an ultrasound-assisted system.

Highly active Fe/Ni bimetallic nanocomposites were prepared by using the liquid-phase reduction method, and they were proven to be effective for Cr(VI) removal coupled with US irradiation. The US-assisted Fe/Ni bimetallic system could maintain a good performance for Cr(VI) removal at a wide pH range of 3-9. Based on the characterization of the Fe/Ni nanoparticles before and after reaction, the high efficiency of the mixed system could attribute to the synergistic effects of the catalysis of Ni(0) and US cavitation.

Mechanisms of CO2 Capture into Monoethanolamine Solution with Different CO2 Loading during the Absorption/Desorption Processes.

Though the mechanism of MEA-CO2 system has been widely studied, there is few literature on the detailed mechanism of CO2 capture into MEA solution with different CO2 loading during absorption/desorption processes. To get a clear picture of the process mechanism, (13)C nuclear magnetic resonance (NMR) was used to analyze the reaction intermediates under different CO2 loadings and detailed mechanism on CO2 absorption and desorption in MEA was evaluated in this work. The results demonstrated that the CO2 absorption in MEA started with the formation of carbamate according to the zwitterion mechanism, followed by the hydration of CO2 to form HCO3(-)/CO3(2-), and accompanied by the hydrolysis of carbamate.

Immobilization of carbonic anhydrase on carboxyl-functionalized ferroferric oxide for CO2 capture.

New materials of Fe3O4 magnetic microspheres were functionalized with carboxyl and prepared for carbonic anhydrase (CA) immobilization to capture CO2. The optimum conditions for immobilization, such as carrier dose, enzyme dose, pH, shaking speed, temperature and contact time, were determined. The pH and thermal stability of the free and the immobilized CA were compared.

Downregulation of VGLL4 in the progression of esophageal squamous cell carcinoma.

VGLL4, a member of the Vestigial-like (VGLL) proteins, has been reported to be dysregulated in several cancer types. However, its function in esophageal squamous cell carcinoma (ESCC) remains poorly understood. Here, it was found that the expression level of VGLL4 was decreased in ESCC tissues.