摘要
研究了煅烧牡蛎壳粉对刚果红染料的静态吸附,考察了吸附时间、温度、吸附初始浓度对牡蛎壳粉吸附刚果红的影响,测试了吸附等温曲线。结果表明牡蛎壳粉对刚果红的吸附平衡时间为6 h,牡蛎壳粉用量为0.5 g.L-1时对70 mg.L-1刚果红溶液的吸附率达96%,吸附量为137.81 mg.g-1;温度升高,吸附速率变大,温度对平衡吸附率的影响不大。煅烧牡蛎壳粉对刚果红的吸附符合Henry吸附模型。
Adsorption characteristic of Congo red on calcined oyster shell powder was studied. The results indicated that the adsorption equilibrium time of oyster shell powder for Congo red was 6h; 0.5g·L^-1 of oyster shell powder could remove 96.0 % of the dye from 70 mg· L^-1 Congo red and unit adsorption capacity of oyster shell powder was 137.81 mg· g^-1. Adsorption velocity increased with the temperature raised but equilibrium adsorption rate somewhat less effective. According to the adsorption isotherm curves of Congo red on oyster shell powder, the regularity of adsorption fit Henry isothermal adsorption.
出处
《化工技术与开发》
CAS
2010年第6期48-50,共3页
Technology & Development of Chemical Industry
基金
广东海洋大学2008年大学生研究创新性实验项目
关键词
牡蛎壳煅烧物
吸附
刚果红
calcinied oyster shell
absorption
Congo red
