以硅藻土为基质,在高锰酸钾溶液中通过化学方法制备了负载型锰氧化物改性硅藻土吸附剂,并利用该吸附剂对染料活性艳红进行吸附脱色实验.实验结果表明,当c(KMnO4)为0.15mol/L时,改性硅藻土吸附剂对染料艳红的η可达96%.当吸附体系pH为4～6时,吸附效果最好.对吸附结果用Langmuir和Freundlich等温方程描述时,发现Langmuir方程能更好地描述吸附行为,相关系数达到0.998.
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