花生壳活性炭对酸性大红GR的吸附  

Adsorption of acid scarlet GR by peanut shell activated carbon

作　　者：王艳[1] 云建宇 张淼 WANG Yan;YUN Jianyu;ZHANG Miao(College of Environmental and Biological Engineering,Henan University of Engineering,Zhengzhou 451191,China)

机构地区：[1]河南工程学院环境与生物工程学院,河南郑州451191

出　　处：《河南工程学院学报（自然科学版）》2021年第4期31-35,共5页Journal of Henan University of Engineering：Natural Science Edition

摘　　要：以花生壳为原料,利用磷酸活化法制备花生壳活性炭AC1,对其进行了表征,并研究了AC1对酸性大红GR染料的吸附性能。结果表明:AC1比表面积和孔容体积分别为1127.79 m^(2)/g和1.08 cm^(3)/g,颗粒大小不均匀,表面相对平整,缺陷程度高;当AC1的投加量为2.0 g/L、吸附50 min、酸性大红GR初始质量浓度为200 mg/L时,吸附效果最佳,酸性大红GR去除率达到97.51%;AC1对酸性大红GR的吸附符合Langmuir模型,也符合准二级动力学方程。The activated carbon AC1 was obtained from peanut shell via activation of phosphoric acid.AC1 was characterized and its adsorption for acid scarlet GR in dyeing wastewater was studied.The results showed that AC1 had a specific surface area of 1127.79 m^(2)/g and its pore volume could reach 1.08 cm 3/g.The particle size is uneven and the surface morphology was relatively flat.It had high degree of defects.The adsorption of acid scarlet GR was the best when the dosage of AC1 was 2.0 g/L,the initial concentration of acid scarlet GR was 200 mg/L,the treatment was continued for 50 min,the decolorization rate of acid scarlet GR could reach 97.51%.The adsorption data was better fitted by the Langmuir model in thermodynamics.The process could be well described by the pseudo-second-order kinetic equation in dynamics.

关 键 词：花生壳 活性炭 酸性大红GR 吸附 

分 类 号：X703[环境科学与工程—环境工程]