The subbituminous type of coal is considered low-grade and unsuitable for power
generation due to its low calorific value and high impurity content. As a result, this type of …

Herein, a novel process involving ultrasound-assisted leaching developed for recovering Ni,
Li, Co, and Mn from spent lithium-ion batteries (LIBs) is reported. Carbonate coprecipitation …

Physical methods for obtaining nanosized materials and structures in liquid-phase media,
characterized by the action of high energies on a substance, are considered: the synthesis …

Recently, free reactive manganese species (RMnS) generated via permanganate catalytic
oxidation technology has been applied to contaminants abatement and sludge dewatering …

With the further expansion of the fossil crisis and the increasing demand for biodiesel, it is
imperative to develop highly reusable catalysts. Therefore, in this study, the completed …

An eco-friendly method consisting of ultrasonic-assisted chemical activation to synthesize
the activated carbon (AC) with high specific surface area and high porosity from the low …

To date, there are no research in the literature on the esterification reaction for biodiesel
production using bismuth silicate as catalyst. With the assistance of ultrasonication at …

In this study, biodiesel was produced by using a heterogeneous acid catalyst made from
brewer's spent yeast (BSY). BSY was initially activated by phosphoric acid followed by …

Over the last couple of decades, academic research on adsorbents has been flourishing.
The preparation, functionalization, and adsorption performance evaluation have grown …

This comprehensive review addresses the need for sustainable and efficient energy storage
technologies against escalating global energy demand and environmental concerns. It …