Rapid Fluorescent Probe Detection of Magnesium Impurities in High-Purity Lithium Carbonate Brine Systems.

The magnesium impurities in lithium carbonate cannot be detected quickly in an aqueous environment. To solve this bottleneck problem, this study proposes a new method for the rapid detection of trace Mg in lithium carbonate using a water-soluble fluorescent probe. A water-soluble fluorescent probe A was obtained by introducing hydroxyl groups on a fluorescent oxazole ring.

Rapid Detection of Aluminium and Iron Impurities in Lithium Carbonate Using Water-Soluble Fluorescent Probes.

The real-time measurement of the content of impurities such as iron and aluminium ions is one of the keys to quality evaluation in the production process of high-purity lithium carbonate; however, impurity detection has been a time-consuming process for many years, which limits the optimisation of the production of high-purity lithium carbonate. In this context, this work explores the possibility of using water-soluble fluorescent probes for the rapid detection of impurity ions. Salicylaldehyde was modified with the hydrophilic group dl-alanine to synthesise a water-soluble Al fluorescent probe (Probe A).

Polyethyleneimine-Templated ZIF-8 Nanoparticles Impart the Nanofiltration Membrane with High Mg/Li Separation Performance.

MOFs-modified nanofiltration (NF) membranes have been gained a lot of attention due to their favorable permeability and ion separation performance. Nevertheless, the prevailing preparation techniques are afflicted by the incompatibility of MOFs with polymers and the facile loss of MOFs. In this work, polyethyleneimine (PEI)-templated ZIF-8 (PEI-ZIF-8) was synthesized and incorporated into the PEI aqueous solution, then interfacial polymerized with trimesoyl chloride (TMC) to obtain the PEI-ZIF-8 modified polyamide NF membrane.

The effects of impurities in carbide slag on the morphological evolution of CaCO during carbonation.

Carbide slag (CS) is a kind of solid waste generated by the hydrolysis of calcium carbide for acetylene production. Its major component is Ca(OH), which shows great potential in CO mineralization to produce CaCO. However, the types of impurities in CS and their mechanisms for inducing the morphological evolution of CaCO are still unclear.

Enhancing the Startup Rate of Microbial Methanogenic Systems through the Synergy of β-lactam Antibiotics and Electrolytic Cells.

The slow startup and suboptimal efficiency of microbial carbon sequestration and methane-production systems have not been fully resolved despite their contribution to sustainable energy production and the reduction of greenhouse gas emissions. These systems often grapple with persistent hurdles, including interference from miscellaneous bacteria and the slow enrichment of methanogens. To address these issues, this paper examines the synergistic effect of coupling β-lactam antibiotics with an electrolytic cell on the methanogenic process.

Freeing Fluoride Termination of TiCT via Electrochemical Etching for High-Performance Capacitive Deionization.

TiCT MXene is a promising Faradic capacitive deionization (CDI) electrode for high salt removal in future desalination, whereas the surface termination group of fluoride (-F) significantly impedes ion access to TiC and charge-transfer efficiency. Herein, we propose an electrochemically etched strategy to synthesize -F-free TiCT through three-electrode cyclic voltammetry scanning within a narrowed potential window in an alkaline electrolyte. The resulting assembly of an asymmetric electrochemical-etched TiCT//activated carbon CDI device can deliver an excellent salt removal capacity of 20.

Liquid marble-derived solid-liquid hybrid superparticles for CO capture.

The design of effective CO capture materials is an ongoing challenge. Here we report a concept to overcome current limitations associated with both liquid and solid CO capture materials by exploiting a solid-liquid hybrid superparticle (SLHSP). The fabrication of SLHSP involves assembly of hydrophobic silica nanoparticles on the liquid marble surface, and co-assembly of hydrophilic silica nanoparticles and tetraethylenepentamine within the interior of the liquid marble.

Effect of impure components in flue gas desulfurization (FGD) gypsum on the generation of polymorph CaCO during carbonation reaction.

As one of the typical solid-wastes, FGD gypsum usually occupies land and causes resource waste and environmental pollution. Its high content of CaSO·2HO shows highly potential in synthesizing CaCO by incorporating CO. Nevertheless, the impurities in FGD gypsum have significant effects on polymorph of CaCO and the formation mechanism of CaCO polymorph during FGD gypsum carbonation was still unclear.

Adsorption properties of zeolites synthesized from coal fly ash for Cu (II).

This study explored the hydrothermal synthesis of zeolites in a homogeneous reactor using coal fly ash (CFA) as a raw material via a two-step method at normal pressure. Fourier transform infrared spectroscopy and X-ray powder diffraction analysis showed that the synthetic products has the basic structural unit of microporous zeolite molecular sieves, and consiste of zeolite 4A and zeolite X. The ability of zeolites synthesized from CFAto adsorb Cu(ll) was studied.