An efficient supramolecular adsorbent for co-adsorption of dyes and metal ions from wastewater and its application in self-healing materials

Soft Matter ◽  
2017 ◽  
Vol 13 (46) ◽  
pp. 8772-8780 ◽  
Author(s):  
Liwei Yan ◽  
Mingqian Lv ◽  
Chunjiao Su ◽  
Leihao Zheng ◽  
Jialing Li ◽  
...  
Keyword(s):  
Metal Ions ◽  
Binary Mixtures ◽  
Co Adsorption ◽  
Self Healing ◽  
Efficient Adsorbent

An efficient adsorbent was prepared for the adsorption of dyes, metals, and dye mixture or binary mixtures of dyes and metals, which could also be used as a self-healing material.

Extremely Tough and Healable Elastomer Realized via Reducing the Crystallinity of Rigid Domain

2021 ◽  
Author(s):  
Chong Xing ◽  
Haomin Wu ◽  
Ruichun Du ◽  
Qiuhong Zhang ◽  
Xudong Jia
Keyword(s):  
Metal Ions ◽  
Self Healing ◽  
High Toughness

We propose a new concept of “toughening the rigid” by adding metal ions to sacrifice the crystallinity of the rigid domain, which makes the elastomers with high toughness and self-healing...

scholarly journals Efficient Separation of Heavy Metals by Magnetic Nanostructured Beads

Inorganics ◽  
2020 ◽  
Vol 8 (6) ◽  
pp. 40 ◽  
Author(s):  
Lisandra de Castro Alves ◽  
Susana Yáñez-Vilar ◽  
Yolanda Piñeiro-Redondo ◽  
José Rivas
Keyword(s):  
Heavy Metals ◽  
Ternary System ◽  
Metal Ions ◽  
Adsorption Capacity ◽  
Freundlich Isotherm ◽  
Metal System ◽  
Adsorption Sites ◽  
Removal Of Heavy Metals ◽  
Adsorption Desorption ◽  
Efficient Adsorbent

This study reports the ability of magnetic alginate activated carbon (MAAC) beads to remove Cd(II), Hg(II), and Ni(II) from water in a mono-metal and ternary system. The adsorption capacity of the MAAC beads was highest in the mono-metal system. The removal efficiency of such metal ions falls in the range of 20–80% and it followed the order Cd(II) > Ni(II) > Hg(II). The model that best fitted in the ternary system was the Freundlich isotherm, while in the mono-system it was the Langmuir isotherm. The maximum Cd(II), Hg(II), and Ni(II) adsorption capacities calculated from the Freundlich isotherm in the mono-metal system were 7.09, 5.08, and 4.82 (mg/g) (mg/L)1/n, respectively. Lower adsorption capacity was observed in the ternary system due to the competition of metal ions for available adsorption sites. Desorption and reusability experiments demonstrated the MAAC beads could be used for at least five consecutive adsorption/desorption cycles. These findings suggest the practical use of the MAAC beads as efficient adsorbent for the removal of heavy metals from wastewater.

Triethylenetetramine modified multiwalled carbon nanotubes for the efficient preconcentration of Pb(ii), Cu(ii), Ni(ii) and Cd(ii) before FAAS detection

RSC Advances ◽  
2015 ◽  
Vol 5 (129) ◽  
pp. 106905-106911 ◽  
Author(s):  
Zeid A. ALOthman ◽  
Erkan Yilmaz ◽  
Mohamed A. Habila ◽  
Ibrahim H. Alsohaimi ◽  
Abdullah M. Aldawsari ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Heavy Metal ◽  
Solid Phase Extraction ◽  
Metal Ions ◽  
Multiwalled Carbon Nanotubes ◽  
Heavy Metal Ions ◽  
Solid Phase ◽  
Phase Extraction ◽  
Multiwalled Carbon ◽  
Efficient Adsorbent

Triethylenetetramine modified multiwalled carbon nanotubes (TETA-MWCNTs) were prepared and used as an efficient adsorbent for the solid phase extraction of heavy metal ions.

A biomimetic SiO2@chitosan composite as highly-efficient adsorbent for removing heavy metal ions in drinking water

Chemosphere ◽  
2019 ◽  
Vol 214 ◽  
pp. 738-742 ◽  
Author(s):  
Jinyun Liu ◽  
Yu Chen ◽  
Tianli Han ◽  
Mengying Cheng ◽  
Wen Zhang ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Drinking Water ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Highly Efficient ◽  
Chitosan Composite ◽  
Efficient Adsorbent

scholarly journals Anisotropic Nanocellulose Aerogel Loaded with Modified UiO-66 as Efficient Adsorbent for Heavy Metal Ions Removal

Nanomaterials ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1114
Author(s):  
Jiajia Li ◽  
Sicong Tan ◽  
Zhaoyang Xu
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Drying Method ◽  
Metal Organic ◽  
Heavy Metal Ions Removal ◽  
Efficient Adsorbent

Currently, the preparation of outstanding adsorbents has attracted public concern in environmentally friendly and sustainable pollutant redress. Herein, we report a directional freeze-drying method to prepare a strong and reusable adsorbent by introducing metal-organic framework which modified by ethylene diamine tetraacetic acid (named UiO-66-EDTA) into cellulose nanofiber (CNF) aerogel. Compared to traditional aerogels, the fabricated adsorbent showed a good flexibility and reusability by forming a homogeneous three-dimensional structure. By controlling the concentration of a crosslinkable carboxymethyl cellulose (CMC) solution, we produced aerogels with different pore structures and fibrillar, columnar, and lamellar morphologies. The obtained UiO-66-EDTA/CNF/CMC aerogel (U-EDTACCA) showed an excellent adsorption performance for a total of nine types of heavy metal ions, as the removal efficiency could reach 91%. Moreover, the aerogels could retain 88% of their original shape after five cycles. The aerogel may be an appropriate material for the adsorption of heavy metal ions.

pH-dependent and self-healing properties of mussel modified poly(vinyl alcohol) hydrogels in a metal-free environment

RSC Advances ◽  
2015 ◽  
Vol 5 (100) ◽  
pp. 82252-82258 ◽  
Author(s):  
Dongjian Shi ◽  
Rongjin Liu ◽  
Weifu Dong ◽  
Xiaojie Li ◽  
Hongji Zhang ◽  
...  
Keyword(s):  
Metal Ions ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Self Healing ◽  
Metal Free ◽  
Simple Strategy ◽  
Ph Dependent ◽  
Free Environment ◽  
Pva Hydrogel

We describe a simple strategy towards a DOPA-based PVA hydrogel with pH-dependent and rapid self-healing properties in the absence of metal ions. The hydrogel could self-heal in 270 s which was much quicker than that prepared in the presence of Fe3+.

Self-assembly of guanosine and deoxy-guanosine into hydrogels: monovalent cation guided modulation of gelation, morphology and self-healing properties

2014 ◽  
Vol 2 (30) ◽  
pp. 4802-4810 ◽  
Author(s):  
Bimalendu Adhikari ◽  
Afzal Shah ◽  
Heinz-Bernhard Kraatz
Keyword(s):  
Metal Ions ◽  
Self Assembly ◽  
Monovalent Cation ◽  
Purine Nucleoside ◽  
Self Healing

The gelation, morphological, fluorescence and thixotropic properties of the purine nucleoside based hydrogels were found to modulate with metal ions.

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