|
Abstract
|
This study develops a novel technique for producing flexible, multifunctional smart nanoporous activated carbon cloths (ACCs) with superior textural properties. By employing viscose rayon and phosphoric acid as activating agents, we achieved a high specific surface area and pore volume, making ACCs ideal for applications such as air purification, water treatment, and dye removal in textiles. Various concentrations of phosphoric acid were used to treat the cloth, resulting in ACC17-400, which exhibited a remarkable surface area of 1095 m²/g and a mesoporous volume of 0.476 cm³/g. This sample demonstrated enhanced adsorption efficiency, characterized by a shorter adsorption period attributable to its higher mesoporous volume. The maximum adsorption capacity for ACC17-400 is 690 mg/g, while for modified activated carbon cloth (MACC17-400), it reaches 996 mg/g. The efficacy of the activated carbon cloth was assessed using Fourier Transform Infrared (FTIR) and Scanning Electron Microscopy (SEM) analyses, which indicated substantial improvements in adsorption capacity after modification with iron nitrate and Ethylene Diamine Tetraacetic Acid (EDTA). Energy Dispersive X-ray (EDX) analysis confirmed the presence of iron and EDTA in the modified ACC. A Brunauer-Emmett-Teller (BET) analysis revealed an increased surface area of 1832 m²/g for the modified cloth. Additionally, the study explored the impact of pH on the adsorption rate, finding that the maximum adsorption value for methylene blue occurred in alkaline conditions. These findings highlight the potential of modified ACCs for efficient adsorption in various environmental applications.
|