摘要
本文以桔子皮为原料,通过高温炭化制备了桔子皮生物炭。用壳聚糖对所制备的桔子皮生物炭进行改性处理,制备了改性生物炭,详细探究了吸附条件对壳聚糖改性生物炭吸附Cr(Ⅵ)性能的影响。结果表明,相比初始生物炭,用壳聚糖改性后的生物炭对Cr(Ⅵ)具有更好的吸附能力。在吸附时间120 min、温度30℃、Cr(Ⅵ)初始浓度为50 mg·L^(-1)、溶液pH=3.0的条件下,改性生物炭对Cr(Ⅵ)的去除率为93.3%。
Orange peel biochar was prepared by high temperature carbonization.Then,the orange peel biochar was modified with chitosan to prepare modified biochar.The effects of adsorption conditions on the adsorption of Cr(Ⅵ)on chitosan modified biochar were investigated in detail.The results showed that the chitosan modified biochar had better Cr(Ⅵ)adsorption capacity than unmodified biochar.When the adsorption time was 120min,temperature was 30℃,initial concentration of Cr(Ⅵ)was 50mg/L and pH=3.0,the removal rate of Cr(Ⅵ)by modified biochar was 93.3%.
作者
仝海娟
刘丽晓
范方方
左卫元
TONG Haijuan;LIU Lixiao;FAN Fangfang;ZUO Weiyuan(Guangxi Colleges and Universities Key Laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi,College of Chemistry Environment Engineering,Baise University,Baise 533000,China)
出处
《化工技术与开发》
CAS
2022年第9期54-57,共4页
Technology & Development of Chemical Industry
基金
广西高校中青年教师科研基础能力提升项目(2020KY19022)
大学生创新训练计划项目(202010609064)。
