Hydroxyl modified hypercrosslinked polymers: targeting high efficient adsorption separation toward aniline

2021 ◽  
Author(s):  
Zishuai Wei ◽  
Qibin Chen ◽  
Honglai Liu
Keyword(s):  
Aqueous Solution ◽  
Environmental Impact ◽  
High Efficient ◽  
Hypercrosslinked Polymers

The removal of aniline from aqueous solution can have a major environmental impact and hence has attracted increasing attention in last years. In this work, four hypercrosslinked polymers (HCPs) bearing...

High-efficient removal of U(VI) from aqueous solution by self-assembly pomelo peel/palygorskite composite

2021 ◽  
Author(s):  
Xiaofeng Huang ◽  
Qiulin Deng ◽  
Xingzhang Wang ◽  
Hongquan Deng ◽  
Tinghong Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Self Assembly ◽  
Efficient Removal ◽  
Pomelo Peel ◽  
High Efficient

A novel thermodynamic approach for the complexation study of toxic metal cations by a landfill leachate

2018 ◽  
Vol 42 (10) ◽  
pp. 7640-7648 ◽  
Author(s):  
Salvatore Cataldo ◽  
Gabriele Lando ◽  
Demetrio Milea ◽  
Santino Orecchio ◽  
Alberto Pettignano ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Environmental Impact ◽  
Metal Ions ◽  
Landfill Leachate ◽  
Toxic Metal ◽  
Metal Cations ◽  
Thermodynamic Approach ◽  
Toxic Metal Ions ◽  
Solution Behaviour ◽  
Humic Fraction

The leachate humic fraction is a good sequestering agent towards toxic metal ions, influencing their aqueous solution behaviour and their environmental impact.

Removal of uranium from aqueous solution by a low cost and high-efficient adsorbent

2013 ◽  
Vol 273 ◽  
pp. 68-74 ◽  
Author(s):  
Yun-Hai Liu ◽  
You-Qun Wang ◽  
Zhi-Bin Zhang ◽  
Xiao-Hong Cao ◽  
Wen-Bin Nie ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Low Cost ◽  
High Efficient ◽  
Efficient Adsorbent

Modification of Cellulosic Fibers and Adsorption of Chromium (VI) Ion from Dilute Aqueous Solution

2014 ◽  
Vol 496-500 ◽  
pp. 183-186
Author(s):  
Zhen Xu ◽  
Wei Liu ◽  
Fan Gong Kong ◽  
Shou Juan Wang ◽  
Hong Lei Chen
Keyword(s):  
Aqueous Solution ◽  
High Efficiency ◽  
Environmental Influence ◽  
Condensation Reaction ◽  
Natural Fibers ◽  
Toluene Diisocyanate ◽  
Cellulosic Fibers ◽  
Chromium Vi ◽  
Grafting Reaction ◽  
High Efficient

The removal of Cr (VI) from aqueous solution is paying more and more attention due to the higher concern of environmental influence of this ion. In this paper, the biodegradable cellulosic fibers were modified with the grafting reaction to introduce the amide groups onto the fibers. In the grafting reaction, the toluene diisocyanate was firstly grafted on the surface of natural fibers, and then the 3-Chloro-2-hydroxypropyltrimethylammonium chloride (HPTMAC), as a high efficiency trapping agent of Cr (VI), was introduced through the condensation reaction. The modified fibers was characterized by infrared spectroscopy (IR) and elemental analysis. The modified fibers were applied to adsorb chromium (VI) ion from aqueous solution. The adsorption capability of the modified fibers was evaluated under different pH, time and temperature. The optimal adsorption conditions were obtained. The results showed that the grafted fibers had high efficient adsorption of chromium (VI) ion.

scholarly journals Benzene Sulfonate Modified ZnCr-LDH and Its Enhanced Adsorption Properties for Anionic Dyes

2021 ◽  
Author(s):  
Jia Lin ◽  
Yude Zhang ◽  
Qian Zhang ◽  
Jinli Shang ◽  
Fuyao Deng
Keyword(s):  
Aqueous Solution ◽  
Active Sites ◽  
Adsorption Process ◽  
Adsorption Behavior ◽  
Maximum Adsorption Capacity ◽  
Benzene Sulfonate ◽  
Dye Molecules ◽  
Anionic Dyes ◽  
One Pot ◽  
High Efficient

Abstract A benzene sulfonate modified hydrotalcite (SO3-LDH) was synthesized by a facile one-pot hydrothermal technique, which can efficiently remove methyl orange (MO), Congo red (CR) and orange II (OII) from aqueous solution. After modified by benzene sulfonate, the microstructure of hydrotalcite changes obviously, from the cellular structure to the stacking structure formed by the face-face contact of hydrotalcite nanosheets, which resulted in much more exchangeable nitrate ions to remain in the interlayer space. The pre-insertion of benzene sulfonate as a pillar expanded the interlayer gallery, which facilitated the pollutant anions (MO, CR and OII) into the interlayer of LDH in the subsequent adsorption process. The maximum adsorption capacity of SO3-LDH for MO, CR and OII was 4200.8 mg/g, 1252.0 mg/g and 1670.6 mg/g respectively, which is approximately 1.86 times, 1.8 times and 2.32 times that of the pristine NO3-LDH, respectively. The removal mechanism of anionic dyes was determined as anion exchange between NO3− ions and dye molecules. The adsorption behavior for MO and OII is multilayer adsorption, while the adsorption behavior for CR is monolayer adsorption. The adsorption process mainly was controlled by the chemical bonding between the dye molecules and adsorbent active sites. The benzene sulfonate modified LDH has a great potential to be used as a high-efficient adsorbent to remove anionic dyes from aqueous solution.

Zinc-Aluminum layered double hydroxide: High efficient removal by adsorption of tartrazine dye from aqueous solution

2020 ◽  
Vol 18 ◽  
pp. 100401 ◽  
Author(s):  
Hasna Ouassif ◽  
El Mostafa Moujahid ◽  
Redouane Lahkale ◽  
Rachid Sadik ◽  
Fatima Zahra Bouragba ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Layered Double Hydroxide ◽  
Efficient Removal ◽  
High Efficient ◽  
Double Hydroxide

scholarly journals UV‐Assisted High‐Efficient Synthesis of α‐Ketoamides Using Air Promoted by a Non‐Metal Catalyst in Aqueous Solution

ChemCatChem ◽  
2018 ◽  
Vol 10 (21) ◽  
pp. 4781-4781
Author(s):  
Jianhui Li ◽  
Shaopo He ◽  
Kuan Zhang ◽  
Ziyi Quan ◽  
Qiheng Shan ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Metal Catalyst ◽  
Efficient Synthesis ◽  
High Efficient
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