王娅娅;唐亚昆;高莎莎;周蓉;刘浪;

• 1:新疆大学化学化工学院
• 2:能源材料化学教育部重点实验室
• 3:新疆大学学报编辑部

摘要(Abstract)：

本文以新疆库车煤为原料,采用KOH活化法,在低碱碳比(1:2)条件下制备了比表面积超过1000m²/g的煤基活性炭.并用不同浓度的硝酸对活性炭进行表面氧化改性,比较了不同氧化程度的活性炭对Cd吸附性能的影响,同时考察了溶液初始浓度、溶液pH值和吸附时间对吸附性能的影响.研究结果表明:采用浓硝酸溶液处理的活性炭具有丰富的含氧官能团、吸附位点多、孔径大,为金属离子的吸附提供了有利条件.由于含氧官能团与金属离子的螯合作用,此氧化改性煤基活性炭对Cd2/g的煤基活性炭.并用不同浓度的硝酸对活性炭进行表面氧化改性,比较了不同氧化程度的活性炭对Cd吸附性能的影响,同时考察了溶液初始浓度、溶液pH值和吸附时间对吸附性能的影响.研究结果表明:采用浓硝酸溶液处理的活性炭具有丰富的含氧官能团、吸附位点多、孔径大,为金属离子的吸附提供了有利条件.由于含氧官能团与金属离子的螯合作用,此氧化改性煤基活性炭对Cd⁽²⁺⁾的吸附量最大可达到88 mg/g,是未改性前活性炭吸附量的16倍,此材料具有一定的工业应用前景.

关键词(KeyWords)： 吸附;氧化改性;煤基活性炭;重金属离子

Abstract:

Keywords:

基金项目(Foundation): 新疆维吾尔自治区青年科技创新人才培养工程项目(2014721005);; 新疆维吾尔自治区重点实验室开放课题(2015KL010);; NSFC-新疆联合基金(U1303391);; 乌鲁木齐市人才工程培养项目(P111310010)

作者(Authors): 王娅娅;唐亚昆;高莎莎;周蓉;刘浪;

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