An overview of metal-organic frameworks and their magnetic composites for the removal of pollutants

Two-dimensional bismuth oxyselenide quantum dots as nanosensors for selective metal ion detection over a wide dynamic range: sensing mechanism and selectivity

“…Heavy metals represent a growing environmental and health problem like other micropollutants such as drugs, by-products from industry, pesticides, organic dyes, etc . 1–5 The presence of trace amounts of heavy metals can cause serious health issues; thus, tracking of such a small amount of heavy metal ions in water is of great importance in maintaining water quality. It is of great importance to develop simple but reliable methods for the selective detection of heavy metal ions.…”

Poly(acrylic acid–butyl acrylate)-Based Physical Hydrogel for Adsorption and Microwave-Assisted Fenton Degradation of Cationic Dye

“…Figure a shows the time-dependent adsorption behavior of MB on the physical hydrogel. The MB adsorption amount increased rapidly over 2 h and reached equilibrium within 4 h. In order to investigate the adsorption process in detail, pseudo-first-order eq and pseudo-second-order eq models were applied to analyze the adsorption kinetic data , lg ( q e − q t ) = lg 0.25em q normale − k 1 t t q t = 1 k 2 q normale 2 + t q normale where q e and q t are the adsorbed amounts (mg/g) at time t and equilibrium, respectively, while k 1 and k 2 are the pseudo-first-order and pseudo-second-order adsorption rate constants, respectively . The fitted curves are shown in Figure b,c.…”

Bimetallic NiCe/Lay catalysts facilitated co-pyrolysis of oleic acid and methanol for efficiently preparing anaerobic hydrocarbon fuels

“…This study offers an alternative for the development and use of alternative biomass like fats and oils. With high specific surface areas, the produced NiCe/Lay can serve as adsorbents for environmental applications 79–81 or functional polymer nanocomposites. 82–85…”