Preparation of activated carbon from jujube kernel by microwave-induced method
Making use of jujube kernel as the main material, jujube kernel activated carbon was prepared with a microwave-induced activation process using phosphoric acid and zinc chloride as the activating agent. The effects of various factors such as microwave power, radiation time ,activation agent/carbon ratio and activation agent concentration on the activation have been studied. Experimental results indicated that the optimum conditions for phosphoric acid as activation agent by microwave-induced were as follows: microwave power 600W, radiation time 15 min , phosphoric acid concentration 50% and phosphoric acid/carbon ratio 1.2:1, under the condition, the yield , MA and IA were 32.6%, 230.5 mL/g and 1361.3 mg/L, respectively. the optimum conditions for zinc chloride as activation agent by microwave-induced were as follows: microwave power 600W, radiation time 20 min , zinc chloride concentration 60% and zinc chloride /carbon ratio 1.2:1, under the condition, the yield , MA and IA were 34.6%, 236.4mL/g and 1347.2 mg/L, respectively. Comparisons of the two method demonstrated that they all are suitable method for preparation of activated carbon with jujube kernel.
Wei Zong Yong Shi
School of Food and Biological Engineering Zhengzhou University of Light Industry Zhengzhou, China Haoxiangni jujube Co.Ltd Xinzheng, China
国际会议
成都
英文
1-4
2010-06-18（万方平台首次上网日期，不代表论文的发表时间）