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文章编号: 16726987(2019)05003106; DOI: 10.16351/j.16726987.2019.05.004
修其慧, 邓晓燕, 戴冬梅, 高洪涛*
(青岛科技大学 生态化工国家重点实验室培育基地,山东 青岛 266042)
摘要: 采用一步水热法制备纳米MoS2,对水中Cu(Ⅱ)有较好的吸附去除效果。Cu(Ⅱ)的最大吸附去除量2213 mg·g-1。采用表面络合模型(SCFM)描述Cu(Ⅱ)在MoS2吸附剂表面上的吸附机制。实验表明:MoS2对Cu(Ⅱ)的吸附过程包括物理和化学两种吸附作用,化学吸附是主要的吸附作用,决定了Cu(Ⅱ)的吸附去除效果。
关键词: 纳米MoS2; Cu(Ⅱ); 表面络合模型(SCFM)
中图分类号: O 64文献标志码: A
引用格式: 修其慧, 邓晓燕, 戴冬梅, 等. MoS2吸附去除水中Cu(Ⅱ)的机制研究\[J\]. 青岛科技大学学报(自然科学版), 2019, 40(5): 3136.
XIU Qihui, DENG Xiaoyan, DAI Dongmei, et al. Adsorption mechanism of MoS2 for Cu(Ⅱ) removal from aqueous solution\[J\]. Journal of Qingdao University of Science and Technology(Natural Science Edition), 2019, 40(5): 3136.
Adsorption Mechanism of MoS2 for Cu(Ⅱ) Removal from Aqueous Solution
XIU Qihui, DENG Xiaoyan, DAI Dongmei, GAO Hongtao
(State Key Laboratory Base of Ecochemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)
Abstract: NanoMoS2 was synthesized by onestep hydrothermal method in this work. It exhibited excellent adsorption performance for Cu (Ⅱ) removal from wastewater, and the maximum adsorption capacity was 2213 mg·g-1. The surface complex formation model (SCFM) was used to describe the mechanism of Cu(Ⅱ) adsorption on the surface of MoS2 adsorbent. It indicated that there involved physical interactions and chemical complexation in Cu(Ⅱ) removal by MoS2 from aqueous solution. Chemical complexation interaction was an important driving force to determine the removal efficiency of Cu (Ⅱ) from water.
Key words: nanoMoS2; Cu(Ⅱ); surface complex formation model (SCFM)
收稿日期: 20181023
基金项目: 国家自然科学基金项目(41573103);山东省重点研发计划项目(2017GSF16105,2018GGX102004,2018GSF117007).
作者简介: 修其慧(1994—),女,硕士研究生.*通信联系人.