Effect of Microwave Heating Conditions on the Preparation of High Surface Area Activated Carbon from Waste Bamboo

Autor: Shixing Wang, Xia Yi, Jinhui Peng, Zhaoqiang Zheng, Libo Zhang, Zhang Shengzhou, Hongying Xia, Jian Wu
Rok vydání: 2015
Předmět:
Zdroj: High Temperature Materials and Processes, Vol 34, Iss 7, Pp 667-674 (2015)
ISSN: 2191-0324
0334-6455
DOI: 10.1515/htmp-2014-0096
Popis: The present study reports the effect of microwave power and microwave heating time on activated carbon adsorption ability. The waste bamboo was used to preparing high surface area activated carbon via microwave heating. The bamboo was carbonized for 2 h at 600°C to be used as the raw material. According to the results, microwave power and microwave heating time had a significant impact on the activating effect. The optimal KOH/C ratio of 4 was identified when microwave power and microwave heating time were 700 W and 15 min, respectively. Under the optimal conditions, surface area was estimated to be 3441 m2/g with pore volume of 2.093 ml/g and the significant proportion of activated carbon was microporous (62.3%). The results of Fourier transform infrared spectroscopy (FTIR) were illustrated that activated carbon surface had abundant functional groups. Additionally the pore structure is characterized using Scanning Electron Microscope (SEM).
Databáze: OpenAIRE