The influence of the texture and surface properties of carbon adsorbents obtained from biomass products on the adsorption of manganese ions from aqueous solution

Carbon ◽  
2003 ◽  
Vol 41 (10) ◽  
pp. 1897-1903 ◽  
Author(s):  
D Savova ◽  
N Petrov ◽  
M.F Yardim ◽  
E Ekinci ◽  
T Budinova ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Surface Properties ◽  
Carbon Adsorbents ◽  
Manganese Ions

Effects of Surface Properties and Solvent PH Values on the Adsorption/Desorption Abilities of Mesoporous SBA-15 to Methylene Blue Molecules

2012 ◽  
Vol 518-523 ◽  
pp. 352-355
Author(s):  
Hui Liu ◽  
Hong Liang Li ◽  
Meng Xue Wang ◽  
Jing Jing Sang ◽  
Xiu Song Zhao
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Pore Size Distribution ◽  
Pore Size ◽  
Surface Properties ◽  
Weak Base ◽  
Adsorption Ability ◽  
Ph Values ◽  
Model Molecule ◽  
Adsorption Desorption

Methylene blue (MB) was used as model molecule to investigate the effects of surface properties and solvent pH values on the adsorption and desorption (or release) behaviors of mesoporous SBA-15 materials. It was found that the treatment of SBA-15 with a pH 7.8 aqueous solution can enhance the adsorption rate and capacity in comparison with the pristine SBA-15. The effect of pH values on MB releasing from the weak base treated SBA-15 and the pristine one have been studied and been compared in pH values range from 0.5 to 7.0. Both of them showed a maximum releasing rate at about pH 2 and all of the treated SBA-15 samples showed a higher releasing quantity than the pristine ones. The influence mechanisms of base treatment on the adsorption ability and that of pH values on the releasing properties of SBA-15 samples have been analyzed and been discussed based on the composition, the morphology, the surface area and pore size distribution and adsorption/desorption measurements.

Surface properties and aggregation behaviors of amphiphilic highly-branched block polyethers in aqueous solution

2013 ◽  
Vol 20 (8) ◽  
Author(s):  
Shan Yang ◽  
Zhiqing Zhang ◽  
Fang Wang ◽  
Lijuan Feng ◽  
Tao Wang
Keyword(s):  
Aqueous Solution ◽  
Surface Properties ◽  
Aggregation Behaviors

Photocatalytic oxidation of chlorophenols in the presence of manganese ions

1999 ◽  
Vol 39 (10-11) ◽  
pp. 225-230 ◽  
Author(s):  
Jong-Nan Chen ◽  
Yi-Chin Chan ◽  
Ming-Chun Lu
Keyword(s):  
Aqueous Solution ◽  
Ionic Strength ◽  
Photocatalytic Oxidation ◽  
Reaction Rate ◽  
Removal Rate ◽  
Adsorption Rate ◽  
Manganese Ions ◽  
Manganese Ion ◽  
Cp Decomposition ◽  
The Relationship

The decomposition of chlorophenols in aqueous solution with UV-illuminated TiO2 suspensions in the presence of manganese ions was studied. It was found that the removal rate of chlorophenols would be the highest at pH 3 in the presence of 1.18×10−4 M manganese ion. The effect of ionic strength on the 2-CP decomposition can be ignored in the range from 0.1 to 0.005 M for NaClO4. This study is also to explore the relationship between the adsorption rate and reaction rate. Results showed that the more the adsorption rate the more the decomposition rate for the three chlorophenols. Manganese ions can increase the photocatalytic oxidation of 2-chlorophenol in terms of DOC. The relationship between temperature and reaction rate for 2-CP is k = 0.0043T - 1.2146.

scholarly journals Effect of Temperature on the Surface Properties of Aqueous Solution of Arachidonic Acid.

1993 ◽  
Vol 41 (1) ◽  
pp. 6-11 ◽  
Author(s):  
Shoko YOKOYAMA ◽  
Junko OBATA ◽  
Tadao JUJIE ◽  
Masayuki NAKAGAKI
Keyword(s):  
Aqueous Solution ◽  
Arachidonic Acid ◽  
Surface Properties ◽  
Effect Of Temperature

Floating Separation between Collophanite and Dolomite Affected by Inorganic Interaction

2014 ◽  
Vol 881-883 ◽  
pp. 1665-1669
Author(s):  
Xiao Tai He ◽  
Qin Zhang ◽  
Shu Hao Qin
Keyword(s):  
Aqueous Solution ◽  
Surface Properties ◽  
Theoretical Basis ◽  
Selective Adsorption ◽  
Electric Properties ◽  
Mineral Surface ◽  
Negative Effects ◽  
Adsorption Characteristics ◽  
Research Findings ◽  
Dissolved Components

According to the type of Guizhou marine sedimentary phosphorus ore, the main reason of refractory is the similar surface properties of collophane and dolomite.In addition,the interaction of dissolved components of mineral and external ion leads the new eguilibrium system in aqueous solution,which further affects the selective adsorption of the agent in mineral surface.Selecting collophanite-dolomite system as the research object, this article studies the effect of the interaction of some inorganic anions on the floatability difference of the two minerals in the flotation system. The effect of the interaction on the electric properties of the mineral surface and adsorption characteristics were also examined with the purpose to find out the interaction mechanism.It hopes to provide theoretical basis for practical mineral selection. The research findings shows that in the range of pH 3 to 5, the interaction of PO43- and SO42- has a better effect of the separation between collophanite and dolomite.The interactions of SiO32- and CO32- makes the floatability difference of collophanite and dolomite closer when the pH is greater than 9.25, and simultaneously shows some negative effects on the flotation separation of the two minerals.

Association and Surface Properties of Amphiphilic Benzodiazepine and Benzothiazepine Drugs in Aqueous Solution

1993 ◽  
Vol 161 (1) ◽  
pp. 19-23 ◽  
Author(s):  
D. Attwood ◽  
R. Blundell ◽  
V. Mosquera ◽  
M. Garcia
Keyword(s):  
Aqueous Solution ◽  
Surface Properties

Determination of the relative amounts of free and complexed manganese ions in aqueous solution by nuclear magnetic resonance

1991 ◽  
Vol 63 (24) ◽  
pp. 2919-2924 ◽  
Author(s):  
Kenneth E. Kellar ◽  
Natalie. Foster
Keyword(s):  
Aqueous Solution ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Manganese Ions ◽  
Nuclear Magnetic

The efficient adsorption removal of Cr(vi) by using Fe3O4 nanoparticles hybridized with carbonaceous materials

RSC Advances ◽  
2015 ◽  
Vol 5 (74) ◽  
pp. 60033-60040 ◽  
Author(s):  
Hongtao Gao ◽  
Shuang Lv ◽  
Jinbiao Dou ◽  
Miaomiao Kong ◽  
Dongmei Dai ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Surface Properties ◽  
Fe3o4 Nanoparticles ◽  
Adsorption Efficiency ◽  
Carbonaceous Materials ◽  
Adsorption Removal

Carbonaceous materials, such as pinecone and graphene, have been hybridized with Fe3O4 to modify its surface properties and enhance its adsorption efficiency for Cr(vi) removal in aqueous solution.

Isotopic exchange between manganese hydroxide and manganese ions in aqueous solution

1974 ◽  
Vol 20 (2) ◽  
pp. 581-587
Author(s):  
A. M. El-Atrash ◽  
A. M. Azzam ◽  
N. K. Ghattas
Keyword(s):  
Aqueous Solution ◽  
Isotopic Exchange ◽  
Manganese Ions ◽  
Manganese Hydroxide
Sign in / Sign up

Export Citation Format

Share Document