Chemical Modification of Unwanted Flora (Hanguana Malayana) as Activated Carbon to Remove Methylene Blue and Congo Red
Year: 2021
Type: article
Abstract: Wastewater is well-known hot issue of environmental pollutions that require a solution hurriedly. Organic dye is a severe toxic contaminant in water. In this work, Hanguana Malayana used as carbon source was chemically activated as activated carbon. The biochar was carried out by the pyrolysis through the heat treatment at 200 °C under low O2 atmosphere. The resulting powder was activated by using ZnCl2 under hydrothermal conditions at 120 °C for 24 h, and further heat-treated at 300 °C for 1 h. The as-prepared product was verified by XRD, FT-IR, SEM, and BET. There were large surface area and many functional groups on the surface of the as-prepared product. All amounts of methylene blue (20 ppm, 50 mL) were removed by 50 mg of activated carbon, meanwhile very few amounts of Congo red (20 ppm, 50 mL) were eliminated. This work showed the benefits on increasing an add-value of Hanguana Malayana by the chemical process together with eliminating unwanted flora and toxic dye chemicals in water.
Institution: Thaksin University
Language: English
Subfield: Water Science and Technology
Field: Environmental Science
Domain: Physical Sciences
Open Access status: diamond
Funder: Thaksin University
OpenAlex ID: W3210090323