Activated carbon synthesised from lignocellulosic cocoa pod husk <i>via</i> alkaline and acid treatment for methylene blue adsorption: optimisation by response surface methodology, kinetics, and isotherm modelling
Zenaida Guerra‐Que, Katia S. López-Margalli, Juan Manuel Urrieta-Saltijeral, Adib Abiu Silahua‐Pavón, Héctor Martínez‐García, Pedro Ávila García, Gerardo E. Córdova‐Pérez, Juan Carlos Arévalo‐Pérez, José Gilberto Torres-Torres
Abstract
for ANCSH5 under practical conditions. Unlike conventional biomass carbons, the hemicellulose-rich CPH precursor promoted extensive delignification, partially graphitised domains, and tailored surface chemistry, providing a distinctive adsorption mechanism. These features underscore CPH valorisation as a sustainable route to high-performance, low-cost adsorbents for dye remediation in cocoa-producing regions.
Topics & Concepts
Activated carbonHuskMethylene blueChemistryAdsorptionFourier transform infrared spectroscopyResponse surface methodologyPoint of zero chargeNuclear chemistryLignocellulosic biomassBiomass (ecology)Chemical engineeringCentral composite designScanning electron microscopeSodium hydroxideCarbon fibersSpecific surface areaPoint of deliveryLangmuir adsorption modelBET theoryBiofuelParticle sizeAqueous solutionPulp and paper industryAdsorption and biosorption for pollutant removalSupercapacitor Materials and FabricationCarbon Dioxide Capture Technologies