TY - JOUR AU - Anusorn Boonpoke, AU - Sirasit Meesiri, AU - Nattawut Seayang, AU - Weerapong Homnan, PY - 2020/12/28 Y2 - 2024/03/28 TI - POLYETHYLENE TEREPHTHALATE BASED ACTIVATED CARBON PRODUCTION: PRELIMINARY STUDY ON KOH ACTIVATION WITH MICROWAVE ASSIST JF - GEOMATE Journal JA - INTERNATIONAL JOURNAL OF GEOMATE VL - 19 IS - 76 SE - Articles DO - UR - https://geomatejournal.com/geomate/article/view/822 SP - 17-24 AB - <p>Since the beginning of the plastic age, drinking-bottle waste has been increasing worldwide. <br>Petroleum plastic waste is composed mainly of Polyethyleneterephthalate (PET), which is remained in the <br>environment for a long period, thereby causing significant harm to humans, flora, and fauna. Waste recycling <br>is one of the promising mitigation strategies, being used to reduce the amount of final disposal. This research, <br>a preliminary investigation of activated carbon production conditions from PET bottle waste, was carried out <br>using Fractional Factorial Design (FFD) with 95% confidence level. Starter material PET waste was obtained <br>from a local recycling factory. Crusted and sieved PET was carbonized at 700oC for 1 hr. (called PET-char), <br>then impregnated with potassium hydroxide (KOH) at a designed ratio and heated in a microwave. The <br>production factors included PET-char:KOH ratio (1 and 3 by weight), microwave power (540 and 900 watts), <br>and microwave heating time (10 and 30 mins). It was found that all production factors were significant <br>contributors to the characteristics of PET-based activated carbon (PET-AC). The highest iodine adsorption <br>capacity was found at the condition of 3 by weight, 900 Watts, and 30 mins for ratio, microwave power, and <br>heating time, respectively. PET-AC shown highest iodine adsorption capacity with 1,125.34 mg/g and<br>Brunauer Emmett Teller (BET) surface area with 1,345 m2<br>/g. It was confirmed that PET bottle-based waste <br>can be converted to a highly valuable nanoporous adsorbent.</p> ER -