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

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.

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

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

Study of impact of Al2O3 nanoparticles on aqueous solution of carboxymethyl cellulose (CMC)

2015 ◽  
pp. 30-32
Author(s):  
H. M. Mahmudov ◽  
M. K. Ismayilova ◽  
N. N. Gadzhieva ◽  
S. Z. Melikova
Keyword(s):  
Aqueous Solution ◽  
Carboxymethyl Cellulose ◽  
Al2o3 Nanoparticles

An adsorbent based on humic acid and carboxymethyl cellulose for efficient dye removal from aqueous solution

2019 ◽  
Vol 135 ◽  
pp. 790-797 ◽  
Author(s):  
Shan Lu ◽  
Wenbin Liu ◽  
Yabo Wang ◽  
Yongkui Zhang ◽  
Panyu Li ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Humic Acid ◽  
Carboxymethyl Cellulose ◽  
Dye Removal

Synthesis of Sodium Carboxymethyl Cellulose Based on Pretreated Bamboo Shaving

2014 ◽  
Vol 997 ◽  
pp. 169-172 ◽  
Author(s):  
Wei Qing Chen ◽  
Dong Ping Lou
Keyword(s):  
Aqueous Solution ◽  
Carboxymethyl Cellulose ◽  
Degree Of Substitution ◽  
Raw Material ◽  
Sodium Carboxymethyl Cellulose ◽  
Main Reaction ◽  
Reaction Conditions

Bamboo shaving is a by-product of bamboo industry, often be discarded or incinerated. In this work, sodium carboxymethyl cellulose (CMC) was prepared from pretreated bamboo shaving as raw material, while the main reaction conditions affecting product properties such as pretreated method, alkalization temperature and time, etherified temperature and time were studied. The results showed that the optimized pretreated conditions for bamboo cellulose were soaked in 15% NaOH at 1:8 (w/v) ratio of cellulose to solvent for 1 h at 95°C, The content of α-cellulose reach to 94.25%. The optimized reaction conditions for CMC synthesis were alkalified at 30°C for 70 min and etherified at 55°C for 90min; afterwards, temperature was kept at 70°C for 10min. Under these conditions, viscosity of 1% CMC aqueous solution was above 260 mPa·s, degree of substitution (DS)≥0.8, and content of chloride and moisture were less than 1.2 % and 10 % respectively.

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