Radiation Synthesis of Carboxymethyl Cellulose Hydrogels for Removal of Organic Contaminants from Its Aqueous Solution

2019 ◽  
Vol 26 (3) ◽  
pp. 362-369
Author(s):  
A. M. Abdel Ghaffar ◽  
M. B. El‐Arnaouty ◽  
A. A. Abdel Baky ◽  
S. A. Shama
Keyword(s):  
Aqueous Solution ◽  
Organic Contaminants ◽  
Carboxymethyl Cellulose ◽  
Radiation Synthesis

Efficiency of Application of Hydrolyzed Polyacrylamide and Copolymer Acrylamide with Potassium Acrylate as a Water-Swelling Agent in Rubbers

2019 ◽  
Vol 816 ◽  
pp. 208-213
Author(s):  
Svetlana S. Lopatina ◽  
M.A. Vaniev ◽  
N.V. Sychev ◽  
D.A. Nilidin ◽  
Y.Yu. Savchenko ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Sodium Chloride ◽  
Carboxymethyl Cellulose ◽  
Sodium Carboxymethyl Cellulose ◽  
Butadiene Rubber ◽  
Swelling Ratio ◽  
Nitrile Butadiene Rubber ◽  
Swelling Agent ◽  
Water Swelling ◽  
Hydrolyzed Polyacrylamide

This paper reviews water swelling of rubber, based on nitrile-butadiene rubber, modified by polyacrylamide and copolymer acrylamide with potassium acrylate, also their combination with sodium-carboxymethyl cellulose. During the exposure for 14 days at a temperature of 67 °С swelling ratio in water is 200 % and 47 % in 10 % aqueous solution of sodium chloride.

Dialdehyde carboxymethyl cellulose cross-linked chitosan for the recovery of palladium and platinum from aqueous solution

2019 ◽  
Vol 141 ◽  
pp. 145-154 ◽  
Author(s):  
Tsegaye Girma Asere ◽  
Stein Mincke ◽  
Karel Folens ◽  
Flore Vanden Bussche ◽  
Linsey Lapeire ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Carboxymethyl Cellulose

ESR study on radiation-induced radicals in carboxymethyl cellulose aqueous solution

2011 ◽  
Vol 80 (2) ◽  
pp. 149-152 ◽  
Author(s):  
Seiichi Saiki ◽  
Naotsugu Nagasawa ◽  
Akihiro Hiroki ◽  
Norio Morishita ◽  
Masao Tamada ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Carboxymethyl Cellulose ◽  
Radiation Induced

Removal of Organic Pollutants in Solution by Bamboo Charcoal

2013 ◽  
Vol 699 ◽  
pp. 554-556 ◽  
Author(s):  
Zi Lin Meng ◽  
Yi He Zhang ◽  
Qi An ◽  
Feng Zhu Lv ◽  
Qian Zhang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Kinetic Model ◽  
Adsorption Capacity ◽  
Surface Area ◽  
Organic Pollutants ◽  
Organic Contaminants ◽  
Low Cost ◽  
Environmentally Friendly ◽  
Bamboo Charcoal ◽  
Key Factors

Bamboo charcoal (BC) as an environmentally friendly and low-cost material receives widespread attention. Recently, much attention has been focused on the use of BC as adsorbent to treat wastewater. This paper provides an overview of the adsorption of organic contaminants in solution by using BC. The sorption behaviors of BC with various organic pollutants, and the kinetic model adopted to explain the adsorption rate of organic pollutants from aqueous solution were also reviewed. The adsorption capacity, the isotherm model, and several key factors such as modification, surface area, are discussed in this paper. Possible improvement of BC to treat organic contaminants in aqueous solution is also proposed.

scholarly journals Fabrication and Optimization of the Thermo-Sensitive Hydrogel Carboxymethyl Cellulose/Poly(N-isopropylacrylamide-co-acrylic acid) for U(VI) Removal from Aqueous Solution

Polymers ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 151 ◽  
Author(s):  
Juan Tan ◽  
Shuibo Xie ◽  
Guohua Wang ◽  
Chuck Wah Yu ◽  
Taotao Zeng ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Acrylic Acid ◽  
Carboxymethyl Cellulose ◽  
Maximum Adsorption Capacity ◽  
Chemical Structures ◽  
Orthogonal Experiments ◽  
Pseudo Second Order ◽  
Simulated Wastewater ◽  
Adsorption Desorption ◽  
Polymerization Method

In this work, the thermo-sensitive materials N-isopropylacrylamide (NIPAM) and acrylic acid (AA) were crosslinked with carboxymethyl cellulose (CMC) (CMC/P (NIPAM-co-AA)) via a free radical polymerization method for the removal of U(VI) from aqueous solution. The L16 (45) orthogonal experiments were designed for the optimization of the synthesis condition. The chemical structures of the crosslinking hydrogel were confirmed by FTIR spectroscopy. The microstructural analyses were conducted though scanning electron microscopy (SEM) to show the pore structure of the hydrogel. The adsorption performance of the CMC/P (NIPAM-co-AA) hydrogel for the uptake of U(VI) from simulated wastewater was also investigated. The adsorption reached equilibrium within 1 h. Under the reaction of pH = 6 and a temperature of 298 K, an initial concentration of U(VI) of 5 mg·L−1, and 10 mg of the CMC/P(NIPAM-co-AA) hydrogel, the maximum adsorption capacity was 14.69 mg g−1. The kinetics fitted perfectly with the pseudo-second-order model, and the isotherms for the composite hydrogel adsorption of U(VI) was in accordance with the Langmuir model. The chemical modification confirmed that the acylamino group played an important role in uranium adsorption. The desorption and reusability study revealed that the resolution rate was still available at approximately 77.74% after five alternate heating cycles at 20 and 50 °C of adsorption-desorption.

Carboxymethyl cellulose structured nano-adsorbent for removal of methyl violet from aqueous solution: isotherm and kinetic analyses

Cellulose ◽  
2020 ◽  
Vol 27 (7) ◽  
pp. 3677-3691 ◽  
Author(s):  
Gaurav Sharma ◽  
Amit Kumar ◽  
Shweta Sharma ◽  
Mu. Naushad ◽  
Ayman A. Ghfar ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Carboxymethyl Cellulose ◽  
Methyl Violet ◽  
Nano Adsorbent
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