scholarly journals Raw walnut shell modified by non-thermal plasma in ultrafine water mist for adsorptive removal of Cu(ii) from aqueous solution

RSC Advances ◽  
2018 ◽  
Vol 8 (39) ◽  
pp. 21993-22003 ◽  
Author(s):  
Long Wu ◽  
Zhongsheng Shang ◽  
Shixian Chen ◽  
Jiayong Tu ◽  
Noriyuki Kobayashi ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Adsorption Capacity ◽  
Thermal Plasma ◽  
Water Mist ◽  
Walnut Shell ◽  
Adsorptive Removal ◽  
Non Thermal Plasma

The adsorption capacity of Cu(ii) by the UWM-plasma modified walnut shell is 8 times of raw walnut shell.

scholarly journals Oxidation of clofibric acid in aqueous solution using a non-thermal plasma discharge or gamma radiation

Chemosphere ◽  
2017 ◽  
Vol 187 ◽  
pp. 395-403 ◽  
Author(s):  
Joana Madureira ◽  
Elisa Ceriani ◽  
Nuno Pinhão ◽  
Ester Marotta ◽  
Rita Melo ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Gamma Radiation ◽  
Thermal Plasma ◽  
Plasma Discharge ◽  
Clofibric Acid ◽  
Non Thermal Plasma

Synthesis, characterization and crystal structure of a copper-glutamate metal organic framework (MOF) and its adsorptive removal of ciprofloxacin drug from aqueous solution

2020 ◽  
Vol 44 (10) ◽  
pp. 3961-3969 ◽  
Author(s):  
Margaret D. Olawale ◽  
Adedibu C. Tella ◽  
Joshua A. Obaleye ◽  
Juwon S. Olatunji
Keyword(s):  
Crystal Structure ◽  
Aqueous Solution ◽  
Adsorption Capacity ◽  
Metal Organic Framework ◽  
Adsorptive Removal ◽  
Metal Organic ◽  
Organic Framework

A novel [Cu(Glu)2(H2O)]·H2O MOF proved to be an effective adsorbent for the removal of ciprofloxacin drug from aqueous solution with an adsorption capacity of 61.35 mg g−1.

Adsorptive Removal of Ni(II) Ions from Aqueous Solution by Polyacrylic Acid/Attapulgite Composite Hydrogels

2017 ◽  
Vol 727 ◽  
pp. 859-865 ◽  
Author(s):  
Yi Wei Zheng ◽  
Wen Wen Tao ◽  
Gui Fang Zhang ◽  
Chao Lv ◽  
Yi Ping Zhao ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Adsorption Capacity ◽  
Polyacrylic Acid ◽  
Swelling Ratio ◽  
X Ray Diffraction ◽  
X Ray ◽  
Adsorptive Removal ◽  
Composite Hydrogels ◽  
Ph Values ◽  
Ft Ir

Polyacrylic acid/attapulgite (PAA/ATP) composite hydrogels used for removal of heavy metal ions from aqueous solution was synthesized via radical polymerization with acrylic acid (AA) and attapulgite (ATP) modified by hydrochloric acid as adsorbent. Chemical composition of the modified ATP was characterized by Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) and the morphology of the PAA/ATP hydrogels was characterized by scanning electron microscope (SEM), respectively. The swelling ratio, pH-sensitivity and adsorption performance of Ni (II) ions of the composite hydrogels were studied. The results showed the swelling ratio of the PAA/ATP composite hydrogels was higher than that of PAA hydrogels and the composite hydrogels displayed sensitivity to pH values with a sharp increase of swelling ratio when the pH values increased from 4 to 6. Comparing with PAA hydrogels, the composite hydrogels obtained a larger adsorption capacity of Ni (II) ions, the average adsorption capacity could reach 72.8 mg/g and adsorption ratio could reach 84%.

Experimental Study on NO Removal Using Non-thermal Plasma Oxidation-alkali Absorption

2015 ◽  
Vol 18 (1) ◽  
Author(s):  
Shuilan Ding ◽  
Qi Yu ◽  
Yingzhou Zhang ◽  
Yuan Liu ◽  
Chunxue Xie ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Experimental Study ◽  
Flue Gas ◽  
Thermal Plasma ◽  
Experimental System ◽  
Plasma Oxidation ◽  
No Removal ◽  
Non Thermal Plasma ◽  
Alkali Absorption ◽  
Removal System

AbstractA non-thermal plasma oxidation-alkali absorption NO removal system is designed by connecting sequentially an alkali aqueous solution absorption device to a gas discharge reactor. An experimental system of simulated flue gas NO removal using non-thermal plasma oxidation and Ca(OH)

Enhancement of Cu(II) adsorption on activated carbons by non-thermal plasma modification in O2, N2 and O2/N2 atmospheres

2020 ◽  
Vol 18 (4) ◽  
Author(s):  
Long Wu ◽  
Yimeng Cai ◽  
Jiayong Tu ◽  
Shizhe Wang ◽  
Noriyuki Kobayashi ◽  
...  
Keyword(s):  
Adsorption Capacity ◽  
Thermal Plasma ◽  
Activated Carbons ◽  
Chemical Properties ◽  
Plasma Modification ◽  
Adsorption Performance ◽  
Ft Ir ◽  
Non Thermal Plasma ◽  
Physical And Chemical ◽  
And Chemical Properties

AbstractActivated carbon (AC) was modified by using non-thermal plasma in O2, N2 and O2/N2 atmospheres to increase its Cu(II) adsorption capacity and quantify the influences of the modifying atmospheres. SEM, BET, FT-IR and XPS were used to characterize the surface physical and chemical properties of AC. The results show that the AC modified by using plasma had significantly better Cu(II) adsorption performance than the raw AC. Among the O2, N2 and O2/N2 atmospheres, the AC with plasma modification in N2 showed best Cu(II) adsorption performance and the Cu(II) adsorption capacity was 369.5% higher than the raw AC. The AC modified in O2 atmosphere can form C—COOH groups, while the AC modified in N2 atmosphere can form C—NH2 groups. These two groups are both beneficial for Cu(II) adsorption, where the —NH2 groups are more effective for Cu(II) adsorption compared to —COOH groups. The chemisorption dominated the Cu(II) adsorption on the plasma modified AC and the adsorption performance was dependent on the surface functional groups properties of AC.

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