scholarly journals Removal of Cu(II) Contamination from Aqueous Solution by Ethylenediamine@β-Zeolite Composite

Molecules ◽  
2021 ◽  
Vol 26 (4) ◽  
pp. 978
Author(s):  
Peng Liu ◽  
Hui Ruan ◽  
Tiantian Li ◽  
Jiaqi Chen ◽  
Fuqiu Ma ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Environmental Conditions ◽  
Self Assembly ◽  
Low Cost ◽  
Amide Group ◽  
Suitable Candidate ◽  
Removal Process ◽  
Β Zeolite ◽  
Assembly Method ◽  
Zeolite Composite

The low cost β-zeolite and ethylenediamine modified β-zeolite (EDA@β-zeolite) were prepared by self-assembly method and used for Cu(II) removal from contaminated aqueous solution. Removal ability of β-zeolite toward Cu(II) was greatly improved after ethylenediamine (EDA) modification, the removal performance was greatly affected by environmental conditions. XPS results illustrated that the amide group played important role in the removal process by forming complexes with Cu(II). The EDA@β-zeolite showed desirable recycling ability. The finding herein suggested that the proposed composite is a promising and suitable candidate for the removal of Cu(II) from contaminated natural wastewater and aquifer.

A new route for fabricating polymer optical microcavities

Nanoscale ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 5203-5208 ◽  
Author(s):  
Zhang Zhang ◽  
Ni Yao ◽  
Jing Pan ◽  
Lei Zhang ◽  
Wei Fang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Smooth Surface ◽  
Low Cost ◽  
Optical Microcavities ◽  
Assembly Method

SU-8 microcavities with an ultra-smooth surface and high Q factors are demonstrated by using a simple and low cost self-assembly method.

scholarly journals Superior adsorption of 3D nanoporous architectures for Ni(ii) ions adsorption using polyvinyl alcohol as cross-linking agent and adsorption conveyor

RSC Advances ◽  
2018 ◽  
Vol 8 (15) ◽  
pp. 7899-7903 ◽  
Author(s):  
Haibo Wang ◽  
Wei Wang ◽  
Yufen Zhao ◽  
Zhiwei Xu ◽  
Lei Chen ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Polyvinyl Alcohol ◽  
Self Assembly ◽  
Large Scale ◽  
Low Cost ◽  
Three Dimensional ◽  
Cross Linking ◽  
Cost Approach ◽  
Assembly Method

In this study, we report a large-scale and low cost approach for the synthesis of three-dimensional (3D) polyvinyl alcohol/carbon nanotubes nanoporous architecture using self-assembly method.

Capillarity-Driven Self-Assembly of Silver Nanowires-Coated Fibers for Flexible and Stretchable Conductor

NANO ◽  
2018 ◽  
Vol 13 (12) ◽  
pp. 1850146 ◽  
Author(s):  
Yi Li ◽  
Jun Chen ◽  
Xiao Han ◽  
Yinghui Li ◽  
Ziqiang Zhang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Large Scale ◽  
Mechanical Stability ◽  
Silver Nanowires ◽  
Low Cost ◽  
Rapid Development ◽  
Assembly Method ◽  
Linear Resistance ◽  
Conductive Fibers ◽  
High Flexibility

The rapid development of smart textiles requires the large-scale fabrication of conductive fibers. In this study, we develop a simple, scalable and low-cost capillary-driven self-assembly method to prepare conductive fibers with uniform morphology, high conductivity and good mechanical strength. Fiber-shaped flexible and stretchable conductors are obtained by coating highly conductive and flexible silver nanowires (Ag NWs) on the surfaces of yarn and PDMS fibers through evaporation-induced flow and capillary-driven self-assembly, which is proven by the in situ optical microscopic observation. The density of Ag NWs and linear resistance of the conductive fibers could be regulated by tuning the assembly cycles. A linear resistance of 1.4[Formula: see text][Formula: see text]/cm could be achieved for the Ag NWs-coated nylon, which increases only 8% after 200 bending cycle, demonstrating high flexibility and mechanical stability. The flexible and stretchable conductive fibers have great potential for the application in wearable devices.

scholarly journals Removal of Eriochrome Black T DYE from Aqueous Solution by Nickel/Aluminium Layered Double Hydroxide

2019 ◽  
Vol 1 (3) ◽  
pp. 79-86
Author(s):  
Nurdiyana Roslan ◽  
Mazidah Mamat ◽  
Ku Halim Ku Bulat
Keyword(s):  
Aqueous Solution ◽  
Layered Double Hydroxide ◽  
Self Assembly ◽  
Freundlich Isotherm ◽  
Thermogravimetric Analyzer ◽  
Eriochrome Black T ◽  
Dye Pollutants ◽  
Assembly Method ◽  
Infrared Spectrophotometer ◽  
Double Hydroxide

Batik industry is well known in the East Coast of Malaysia, particularly in Terengganu and Kelantan. This industry consumes a lot of water for the batik making process which contributes to high discharge of wastewater containing excess dye pollutants. Hence, in this study, an anionic clay of nickel/aluminium-layered double hydroxide (NiAL) was investigated as a potential adsorbent for the removal of anionic dye of Eriochrome Black T (EBT). The NiAL was synthesized via self-assembly method and characterization of NiAL was carried out using powder X-ray diffraction (PXRD) and Fourier transform infrared spectrophotometer (FTIR). The composition and morphology of NiAL was further analyzed using carbon, hydrogen, nitrogen, sulphur elemental analyzer (CHNS), thermogravimetric analyzer (TGA) and scanning electron microscope (SEM). The potential of NiAL as an adsorbent for the removal of EBT in aqueous solution was tested at different dosages of NiAL. The adsorption ability was analyzed by using two common adsorption isotherms, which were Langmuir and Freundlich models. The adsorption of EBT onto NiAL was governed by Freundlich isotherm model indicating that the adsorption occurs in heterogeneous system.

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