Unveiling the dual roles of the intercalation of [MoS₄]²⁻ clusters in boosting heavy metal capture by Ca–Al layered double hydroxide

Abstract

Heavy metals such as Pb(II) and Cd(II) are ubiquitously present in aquatic and soil environments, poses a critical threat to the environment and human health. Herein, we report a strategy...

CoAl-LDH decorated with cerium oxide as an efficient adsorbent for restoring low-concentration phosphate in wastewater

“…The adsorption capacity of phosphate ( q t ) was calculated using different models. The adsorption capacity of phosphate ( q t ) was calculated using different models, 50,51 pseudo-first-order (eqn (5)) and pseudo-second-order models (eqn (6)), respectively. q t = q e (1−exp − k 1 t )In which q e represents the amounts of phosphate adsorption (mg g −1 ) at equilibrium, q t is the amounts of the adsorbed phosphate (mg g −1 ) at different times (min), k 1 is the pseudo-first-order rate parameter and k 2 denotes the pseudo-second-order.…”

“…The adsorption capacity of phosphate (q t ) was calculated using different models. The adsorption capacity of phosphate (q t ) was calculated using different models, 50,51 pseudo-rst-order (eqn ( 5)) and pseudo-second-order models (eqn ( 6)), respectively.…”

Natural Pyrite-assisted Mechanochemical Recovery of Insoluble Manganese from Electrolytic Manganese Residue: Kinetics and Mechanisms

“…With the addition of pyrite and washing with water, the amount of sulfide species increased significantly, with a proportion of 26.80%, and the proportion of SO 4 2– decreased to 65.75% (Table S4). The reason for this result was that most of the soluble sulfate was dissolved and disappeared by water . However, the characteristic peak of SO 4 2– increased to 77.63% after low-speed mechanochemical treatment, and this value continued to increase to 87.82% as the ball milling speed increased to 500 rpm.…”

“…The reason for this result was that most of the soluble sulfate was dissolved and disappeared by water. 53 However, the characteristic peak of SO 4…”

Successful removal of fluoride from aqueous environment using Al(OH)3@AC: column studies and breakthrough curve modeling

“…More recently, for applications, adsorption procedures using batches for continuous treatments has been very useful in this regard. [25][26][27][28][29] Nevertheless, a dynamic adsorption system is recommended for full application in water depollution, because of its simple operation and stability. 25,30 In addition, the adsorption of liquid media under continuous ow is considered a nonlinear pathway that can be tailored via breakthrough curve.…”