Impact of contact time, pH, ionic strength, soil humic substances, and temperature on the uptake of Pb(II) onto graphene oxide

被引：6
作者：
Li, Xue [1 ,2 ]
Zhao, Kang [1 ]
You, Caiyin [1 ]
Pan, Hui [2 ]
Tang, Xiaoping [2 ]
Fang, Yanfeng [2 ]
机构：
[1] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China
[2] Shaoxing Univ, Coll Yuanpei, Shaoxing, Peoples R China
来源：
SEPARATION SCIENCE AND TECHNOLOGY | 2017年 / 52卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Graphene oxide; Pb(II); uptake; water quality parameters; ZERO-VALENT IRON; HIGHLY EFFICIENT IMMOBILIZATION; GRAPHITIC CARBON NITRIDE; LAYERED DOUBLE HYDROXIDE; ENHANCED SEQUESTRATION; TITANATE NANOTUBES; AQUEOUS-SOLUTION; COMBINED BATCH; ENVIRONMENTAL-CONDITIONS; COMPETITIVE ADSORPTION;
D O I：
10.1080/01496395.2017.1281302
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The uptake of Pb(II) from wastewaters onto graphene oxide was studied as a function of various water quality parameters. The results indicated that uptake was fast and kinetic uptake could be well fitted by a pseudo-second-order model. The uptake was strongly dependent on pH and independent of ionic strength. Namely, inner-sphere surface complexation was the main uptake mechanism. The presence of humic acid or fulvic acid enhanced the uptake at low pH values, while reduced at high pH. The Langmuir, Freundlich, and Dubinin-Redushkevich (D-R) isotherm models were used to simulate the uptake. Thermodynamics indicated that the uptake was endothermic and spontaneous.
引用
收藏
页码：987 / 996
页数：10
相关论文
共 72 条
[41]   Macroscopic and Microscopic Investigation of Ni(II) Sequestration on Diatomite by Batch, XPS, and EXAFS Techniques [J].
Sheng, Guodong ;
Yang, Shitong ;
Sheng, Jiang ;
Hu, Jun ;
Tan, Xiaoli ;
Wang, Xiangke .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2011, 45 (18) :7718-7726
[42]   Adsorption of Pb(II) on diatomite as affected via aqueous solution chemistry and temperature [J].
Sheng, Guodong ;
Wang, Suowei ;
Hu, Jun ;
Lu, Yi ;
Li, Jiaxing ;
Dong, Yunhui ;
Wang, Xiangke .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2009, 339 (1-3) :159-166
[43]   Adsorption and Desorption of U(VI) on Functionalized Graphene Oxides: A Combined Experimental and Theoretical Study [J].
Sun, Yubing ;
Yang, Shubin ;
Chen, Yue ;
Ding, Congcong ;
Cheng, Wencai ;
Wang, Xiangke .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2015, 49 (07) :4255-4262
[44]   Highly Efficient Enrichment of Radionuclides on Graphene Oxide-Supported Polyaniline [J].
Sun, Yubing ;
Shao, Dadong ;
Chen, Changlun ;
Yang, Shubin ;
Wang, Xiangke .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2013, 47 (17) :9904-9910
[45]   Eu(III) Sorption to TiO2 (Anatase and Rutile): Batch, XPS, and EXAFS Studies [J].
Tan, Xiaoli ;
Fan, Qiaohui ;
Wang, Xiangke ;
Grambow, Bernd .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2009, 43 (09) :3115-3121
[46]   Removal of Pb(II), Cu(II), and Cd(II) from aqueous solutions by biochar derived from KMnO4 treated hickory wood [J].
Wang, Hongyu ;
Gao, Bin ;
Wang, Shenseng ;
Fang, June ;
Xue, Yingwen ;
Yang, Kai .
BIORESOURCE TECHNOLOGY, 2015, 197 :356-362
[47]   Adsorption of Polycyclic Aromatic Hydrocarbons by Graphene and Graphene Oxide Nanosheets [J].
Wang, Jun ;
Chen, Zaiming ;
Chen, Baoliang .
ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2014, 48 (09) :4817-4825
[48]  
Wang X., 2016, SCI CHINA CHEM, V59, P412
[49]   Surface Modification of Graphene Oxides by Plasma Techniques and Their Application for Environmental Pollution Cleanup [J].
Wang, Xiangxue ;
Fan, Qiaohui ;
Chen, Zhongshan ;
Wang, Qi ;
Li, Jiaxing ;
Hobiny, Aatef ;
Alsaedi, Ahmed ;
Wang, Xiangke .
CHEMICAL RECORD, 2016, 16 (01) :295-318
[50]  
Wang XX, 2016, CHEM ENG J, V287, P448, DOI [10.1016/j.cej.2020.124272, 10.1016/j.cej.2015.11.066]
12345678