摘要
以荔枝核为原料,采用磷酸活化法制备活性炭,考察磷酸浓度、活化时间、炭化活化温度、固液比对亚甲基蓝的吸附性能的影响。结果表明,磷酸活化法制备荔枝核活性炭的最佳工艺条件为:磷酸浓度60%、炭化活化时间3 h、炭化活化温度500℃、固液比1︰3(g/mL)。在此条件下,吸附率为99.72%,吸附量为104.7 mg/g,具有较好的吸附效果。
Activated carbon was prepared from Litchi kernel by H3 PO4 activation.The effects of phosphoric acid concentration,solid-liquid ratio,activation time and activation temperature on methylene blue adsorbent value were investigated.The experimental results showed that the optimum condition was as follows:phosphoric acid concentration 60%,carbonization activation time 3 h,carbonization activation temperature 500℃and solid-liquid ratio 1︰3(g/mL).Under this condition,adsorption rate was 99.72%,and adsorption value was 104.7 mg/g and it had better adsorption effect.
作者
陈秋娟
谢微
莫福旺
刘科讯
向金宁
胡月芳
CHEN Qiujuan;XIE Wei;MO Fuwang;LIU Kexun;XIANG Jinning;HU Yuefang(College of Materials and Chemical Engineering,Hezhou University,Hezhou 542899;Guangxi Key Laboratory of Calcium Carbonate Resources Comprehensive Utilization,Hezhou 542899;Research Institute of Food Science&Engineering Technology,Hezhou University,Hezhou 542899)
出处
《食品工业》
CAS
北大核心
2020年第11期62-65,共4页
The Food Industry
基金
广西果蔬保鲜和深加工研究人才小高地开放课题(2018GSXGD10,2018GSXGD08)
广西高等教育本科教学改革工程项目(2018JGB318)
2019年广西自治区级大学生创新创业训练计划项目(20191183826)
2017年广西自然科学基金面上项目(2017GXNSFAA198274)
广西自然科学基金青年科学基金项目(2018GXNSFBA281200)。
关键词
磷酸
荔枝核
活性炭
亚甲基蓝
吸附性能
phosphoric acid
lychee kernel
activated carbon
methylene blue
adsorptive property
