One-step open-ring strategy for constructing sandwich-like metal–organic framework with highly selective removal of thorium

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159718 - 159718

Published: Jan. 1, 2025

Language: Английский

---

Green Synthesis of nZVI-Modified Sludge Biochar for Cr(VI) Removal in Water: Fixed-Bed Experiments and Artificial Neural Network Model Prediction

Water, Journal Year: 2025, Volume and Issue: 17(3), P. 341 - 341

Published: Jan. 25, 2025

The contamination of aquatic environments with hexavalent chromium (Cr(VI)) poses significant environmental and public health risks, necessitating the development high-performance adsorbents for its efficient removal. This study evaluates potential green-synthesized nanoscale zero-valent iron-modified sludge biochar (TP-nZVI/BC) as an effective adsorbent Cr(VI) removal through isothermal adsorption experiments, fixed-bed column studies, artificial neural network (ANN) modeling. Fixed-bed experiments demonstrated that breakthrough time, exhaustion unit capacity increased bed height. Conversely, these parameters decreased higher influent concentrations flow rates. Breakthrough curve analysis revealed Thomas model provided best fit experimental data (R2 = 0.992–0.998). An ANN model, developed using Levenberg–Marquardt algorithm, employed a single hidden layer six neurons exhibited excellent predictive performance 0.996, MSE 0.520). was validated ability to predict behavior under untested conditions, demonstrating applicability process optimization. highlights superior TP-nZVI/BC establishes theoretical basis optimizing scaling up systems findings provide valuable insights into practical application sustainable materials in remediation.

Language: Английский

---

Natural Moroccan phosphate for Astrazon Orange g dye removal: Performance analysis and breakthrough curves modeling

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114544 - 114544

Published: April 1, 2025

Language: Английский

---

Recovery of Lesser-Known Strategic Metals: The Gallium and Germanium Cases

Processes, Journal Year: 2024, Volume and Issue: 12(11), P. 2545 - 2545

Published: Nov. 14, 2024

Being not as popular other elements, such cobalt, lithium, and rare earth both gallium germanium have wide use in target developments/industries, thus making them valuable strategically critical metals. The principal sources for the recovery of metals are secondary wastes bauxite (gallium) or zinc (germanium) industries; also, their recycling from waste materials is necessary. characteristics these make hydrometallurgical operations widely useful recovering various containing them. present work reviews most recent applications (in 2024) applied to resources.

Language: Английский

---