Layered Double Hydroxide (LDH) is a layered material with a large surface area and good anion-exchange capacity, but its stability remains limited. To enhance its performance, LDH was modified with Muntingia calabura (MC) extract, which is rich in flavonoids and phenolics with strong antioxidant activity (IC₅₀ < 50 μg/mL). CaAl, CaCr, and CaFe LDH–MC composites were synthesized via the c…
Activated carbon is a porous solid containing 85-89 % carbon produced from materials containing carbon by heating at high temperatures using gas, water vapor and chemicals. This study aims to determine the effect of variations in carbonization temperature, carbonization time and Na₂CO3 concentration, on the characterization of coffee grounds activated carbon and its absorption of phenol. This…