| 活性黑KN-B在石墨烯表面的吸附行为 |
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| 引用本文： | 孙兆楠,潘玉瑾,冷杰雯,王明秀,杨薇,张南.活性黑KN-B在石墨烯表面的吸附行为[J].环境工程,2021,39(12):114-119. |
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| 作者姓名： | 孙兆楠 潘玉瑾 冷杰雯 王明秀 杨薇 张南 |
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| 作者单位： | 辽宁省化学助剂合成与分离重点实验室营口理工学院,辽宁营口 115014;营口市环境工程开发有限公司,辽宁营口 115014 |
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| 基金项目： | 2019年营口理工学院优秀科技人才支持计划(RC201905)。辽宁省化学助剂合成与分离重点实验室资助项目(ZJNK2014) |
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| 摘 要： | 采用石墨烯作为吸附剂,以活性黑KN-B为目标污染物模拟染料废水,考察吸附法处理活性黑KN-B模拟染料废水的影响因素及活性黑KN-B在石墨烯表面的吸附行为。结果表明:在投加2 g/L石墨烯,pH值为5.0,振荡速率为100 r/min, 40 ℃恒温下振荡60 min,吸附处理50 mg/L活性黑KN-B染料废水50 mL,对活性黑KN-B的去除率可达到94%,且稳定可行。研究发现,可利用Langmuir吸附等温线和准二级动力学描述活性黑KN-B在石墨烯表面的吸附行为,即单分子层化学吸附。
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| 关 键 词： | 吸附法 石墨烯 活性黑KN-B 动力学 吸附机理 |
| 收稿时间： | 2021-08-06 |
ADSORPTION BEHAVIOR OF REACTIVE BLACK KN-B ON GRAPHENE SURFACE |
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| Institution: | 1. Liaoning Key Laboratory of Chemical Additive Synthesis and Separation, Yingkou Institute of Technology, Yingkou 115014, China;2. Yingkou Environment Project Development Co., Ltd, Yingkou 115014, China |
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| Abstract: | Using graphene as the adsorbent, and reactive black KN-B as the target pollutant to simulate dye wastewater, the influencing factors of adsorption treatment of reactive black KN-B simulated dye wastewater and the adsorption behavior of reactive black KN-B on graphene surface were investigated. The results showed that under the optimum reaction condition of adding 2 g/L of graphene in 50 mL solution, pH value was 5.0, oscillating rate was 100 r/min, oscillating at 40 ℃ for 60 min, the removal rate of absorption 50 mg/L reactive black KN-B dye wastewater could reach 94%. It was found that Langmuir adsorption isotherm and quasi-second-order kinetics could be used to describe the adsorption behavior of reactive black KN-B on graphene surface, and then this course could be defined as monolayer chemisorption. |
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