2019中文字字幕无线乱码

科研成果
博士生王燕,游志雄的论文在COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 刊出
发布时间:2021-12-03 16:16:24     发布者:易真     浏览次数:

标题: Highly efficient and selective removal of Pb2+ by ultrafast synthesis of HKUST-1: Kinetic, isotherms and mechanism analysis

作者: Wang, Y (Wang, Yan); Li, MW (Li, Mengwei); Hu, J (Hu, Jing); Feng, WP (Feng, Wenpei); Li, JJ (Li, Junjun); You, ZX (You, Zhixiong)

来源出版物: COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS : 633 文献号: 127852 DOI: 10.1016/j.colsurfa.2021.127852 子辑: 2 出版年: JAN 20 2022

摘要: The relatively high cost, long synthesis duration and low adsorption capacity have limited the application of the primary metal-organic frameworks (MOFs) in the heavy metal removal. Herein, one-minute synthesized primary HKUST-1 MOF with excellent adsorption performance towards Pb2+ has been achieved. The adsorption equi-librium time and maximum uptake capacity of Pb2+ on HKUST-1were 60 min and 819.28 mg/g, respectively. Besides, HKUST-1 exhibited a stronger binding affinity to Pb2+ than the coexisting ions. The adsorption data fitted well with the pseudo-second order model (R-2 = 0.9962) and Langmuir model (R-2 = 0.9919), suggesting the adsorption behavior was dominated by monolayer chemisorption. Further, the destruction of HKUST-1 crystal structure after Pb2+ exposure and strong correlation between the released Cu2+ and adsorbed Pb2+ collectively confirmed the ion exchange could be the potential mechanism. Besides, the coordination interaction between Pb2+ and the free-standing carboxylate groups in the ligands of HKUST-1 also played an important role in the adsorption process. This work not only provides a new idea for Pb2+ removal by primary MOFs based on cation substitution, but also has great implications for constructing green and low-cost MOFs for the treatment of heavy metals contaminated water.

入藏号: WOS:000720947100007

语言: English

文献类型: Article

作者关键词: One-minute synthesis; HKUST-1; Pb2+ adsorption; Adsorption mechanism

地址: [Wang, Yan; Li, Mengwei; Hu, Jing; Feng, Wenpei; Li, Junjun; You, Zhixiong] Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

通讯作者地址: You, ZX (通讯作者),Wuhan Univ, Sch Resources & Environm Sci, Wuhan 430079, Peoples R China.

电子邮件地址: zyou@whu.edu.cn

影响因子:4.539


信息服务
2019中文字字幕无线乱码网站教师登录 2019中文字字幕无线乱码办公电话 学校信息门户登录

版权所有 ? 2019中文字字幕无线乱码
地址:湖北省武汉市珞喻路129号 邮编:430079 
电话:027-68778381,68778284,68778296 传真:027-68778893    

2019中文字字幕无线乱码-中文乱码字幕无线观看2019进入-中文乱码字幕无线观看2019