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Mn-doped zirconium metal-organic framework as an effective adsorbent for removal of tetracycline and Cr(VI) from aqueous solution

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成果类型:
期刊论文
作者:
Yang, Zhao-hui*;Cao, Jiao;Chen, Yu-peng;Li, Xin;Xiong, Wei-ping;Zhou, Yao-yu;Zhou, Cheng-yun;Xu, Rui;Zhang, Yan-ru
通讯作者:
Yang, Zhao-hui
作者机构:
[Yang, Zhao-hui; Xu, Rui; Zhang, Yan-ru; Cao, Jiao; Chen, Yu-peng; Zhou, Cheng-yun; Li, Xin; Xiong, Wei-ping] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
[Yang, Zhao-hui; Xu, Rui; Zhang, Yan-ru; Cao, Jiao; Chen, Yu-peng; Zhou, Cheng-yun; Li, Xin; Xiong, Wei-ping] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China.
[Zhou, Yao-yu] Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Hunan, Peoples R China.
通讯机构:
[Yang, Zhao-hui] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
语种:
英文
关键词:
UiO-66;Mn-doped;Adsorption;Tetracycline;Cr(VI)
期刊:
MICROPOROUS AND MESOPOROUS MATERIALS
ISSN:
1387-1811
年:
2019
卷:
277
页码:
277-285
文献类别:
WOS:Article
所属学科:
WOS学科类别:Chemistry, Applied;Chemistry, Physical;Materials Science, Multidisciplinary;Nanoscience & Nanotechnology
入藏号:
基金类别:
National Natural Science Foundation of China [51578223, 51521006, 51709103]; Key Research and Development Program of Hunan Province [2017SK2242]; China Postdoctoral Science Foundation [2018M630901]
机构署名:
本校为其他机构
院系归属:
资源环境学院
摘要:
Metal-organic frameworks (MOFs) with porous property have gained much concern in environment remediation. Herein, the Mn-doped UiO-66 (denoted as MnUiO-66) with cubic morphology was fabricated with a facile solvothermal method. To investigate the adsorption performance of MnUiO-66, tetracycline (TC) and Cr(VI) were chosen as the target pollutant. The maximum adsorption capacity of MnUiO-66 for TC and Cr(VI) were 184.493 mg g(-1) and 32.773 mg g(-1), respectively, which were 4.9 and 3.1 times higher than the pristine UiO-66. Effects of the solution pH values, initial concentrations and coexisting ions on adsorption capacity were investigated and the adsorption mechanism based on zeta potential measurement was proposed. The adsorption process of MnUiO-66 over TC and Cr(VI) had the most accordance with pseudo-second-order and Langmuir models, which suggested that chemisorption was dominant in adsorption reaction and the MnUiO-66 adsorbent had a homogenous surface for adsorption. Adsorption thermodynamic studies implied that the adsorption process of TC and Cr(VI) on MnUiO-66 were spontaneous and exothermic. In addition, the MnUiO-66 showed excellent adsorption performance in TC-Cr(VI) mixed sample and pharmaceutical wastewater. More importantly, the regeneration experiment indicated the MnUiO-66 adsorbent was recyclable. This work provided a useful insight into the fabrication MOFs-based adsorbent for water purification.
参考文献:
Bai Y, 2016, CHEM SOC REV, V45, P2327, DOI 10.1039/c5cs00837a
Batten SR, 2013, PURE APPL CHEM, V85, P1715, DOI 10.1351/PAC-REC-12-11-20
Burtch NC, 2014, CHEM REV, V114, P10575, DOI 10.1021/cr5002589
Cao J, 2018, CHEM ENG J, V353, P126, DOI 10.1016/j.cej.2018.07.060
Chen CQ, 2017, ACS APPL MATER INTER, V9, P41043, DOI 10.1021/acsami.7b13443

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