Removal of Cd2+ from water containing Ca2+ and Mg2+ using titanate nanotubes modified by carbon

被引:3
作者
Wu, Mingda [1 ]
Lu, Linghong [1 ]
Zhou, Tao [1 ]
Ma, Yi [1 ]
Weng, Zhengsong [1 ]
机构
[1] Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 211816, Peoples R China
基金
中国国家自然科学基金;
关键词
Water treatment; Cadmium ion; Titanate nanotubes; Carbon modification; ACTIVATED CARBON; ADSORPTION; EFFICIENT; CD(II); IONS; NANOMATERIALS; DEGRADATION; MECHANISM; PB(II); ACID;
D O I
10.1007/s11356-022-19002-7
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Calcium and magnesium ions usually exist in natural water. When Cd2+ is removed from water by adsorption, it will be inhibited by these two ions. Titanate nanotubes (TNTs) have an effective adsorption capacity for Cd2+ due to extraordinary ion exchange property. However, TNTs also adsorb Ca2+ and Mg2+ in water. In this study, carbon-modified TNT (TNT/C) and TNT/C further treated with acid (TNT/HC) were synthesized by hydrothermal synthesis. The transmission electron microscope (TEM) images show that TNT/C or TNT/HC still keep nanotube morphology. The experimental results show the order of adsorption amount to Cd2+ is TNT (171.56 mg/g) > TNT/C (166 mg/g) > TNT/HC (159.88 mg/g) when there is no Ca2+ or Mg2+. But when there is 0.1 M Ca2+ or Mg2+ in the water, the order of Cd2+ adsorption capacity becomes TNT/HC (44.28, 49.04 mg/g) > TNT/C (58.84, 69.32 mg/g) > TNT (65.52, 70.6 mg/g). It indicates that the surface carbon modification can alleviate the hindrance of Ca2+ or Mg2+ to Cd2+ removal. This is because the carbon on the surface of TNT captured part of Ca2+ or Mg2+; it made more Cd2+ be successfully absorbed by TNT through ion exchange. This mechanism was confirmed by the X-ray photoelectron spectroscopy (XPS) spectra analysis. The results of this paper can provide ideas for the adsorption and removal of Cd2+ in water in the presence of Ca2+ or Mg2+.
引用
收藏
页码:44794 / 44805
页数:12
相关论文
共 49 条
[1]   Titanate for water remediation: synthesis, application, mechanism and optimization [J].
Bi, Jingtao ;
Huang, Xin ;
Wang, Jingkang ;
Tao, Qingqing ;
Wang, Ting ;
Hao, Hongxun .
JOURNAL OF MATERIALS CHEMISTRY A, 2020, 8 (29) :14415-14440
[2]   Enhanced removal of cadmium from water using bio-sorbents synthesized from branches and leaves of Capparis decidua and Ziziphus mauritiana [J].
Bilal, Muhammad ;
Ihsanullah, Ihsanullah ;
Shah, Mansoor Ul Hassan ;
Younas, Mohammad .
ENVIRONMENTAL TECHNOLOGY & INNOVATION, 2021, 24
[3]   Sustainable technologies for water purification from heavy metals: review and analysis [J].
Bolisetty, Sreenath ;
Peydayesh, Mohammad ;
Mezzenga, Raffaele .
CHEMICAL SOCIETY REVIEWS, 2019, 48 (02) :463-487
[4]   Kinetics and thermodynamics of cadmium ion removal by adsorption onto nano zerovalent iron particles [J].
Boparai, Hardiljeet K. ;
Joseph, Meera ;
O'Carroll, Denis M. .
JOURNAL OF HAZARDOUS MATERIALS, 2011, 186 (01) :458-465
[5]   Reactive Dye Adsorption from Aqueous Solution on HPEI-Modified Fe3O4 Nanoparticle as a Superadsorbent: Characterization, Modeling, and Optimization [J].
Dalvand, Arash ;
Khoobi, Mehdi ;
Nabizadeh, Ramin ;
Ganjali, Mohammad Reza ;
Gholibegloo, Elham ;
Mahvi, Amir Hossein .
JOURNAL OF POLYMERS AND THE ENVIRONMENT, 2018, 26 (08) :3470-3483
[6]   Adsorption of heavy metals on silica-supported hydrophilic carbonaceous nanoparticles (SHNPs) [J].
Di Natale, F. ;
Gargiulo, V ;
Alfe, M. .
JOURNAL OF HAZARDOUS MATERIALS, 2020, 393
[7]   Removal of uranium(VI) ions from aqueous solutions using Schiff base functionalized SBA-15 mesoporous silica materials [J].
Dolatyari, Leila ;
Yaftian, Mohammad Reza ;
Rostamnia, Sadegh .
JOURNAL OF ENVIRONMENTAL MANAGEMENT, 2016, 169 :8-17
[8]   Sequestration of cadmium ions using titanate nanotube [J].
Du, Alan J. ;
Sun, Darren D. ;
Leckie, James O. .
JOURNAL OF HAZARDOUS MATERIALS, 2011, 187 (1-3) :401-406
[9]   Simultaneous adsorption of uranium(VI) and 2-chlorophenol by activated carbon fiber supported/modified titanate nanotubes (TNTs/ACF): Effectiveness and synergistic effects [J].
Duan, Jun ;
Ji, Haodong ;
Xu, Tianyuan ;
Pan, Fei ;
Liu, Xiaona ;
Liu, Wen ;
Zhao, Dongye .
CHEMICAL ENGINEERING JOURNAL, 2021, 406
[10]   Reuse of Predesigned Dual-Functional Metal Organic Frameworks (DF-MOFs) after Heavy Metal Removal [J].
Esrafili, Leili ;
Firuzabadi, Fahimeh Dehghani ;
Morsali, Ali ;
Hu, Mao-Lin .
JOURNAL OF HAZARDOUS MATERIALS, 2021, 403