Describing chlorophenol sorption on variable-charge soil using the triple-layer model

2005 ◽  
Vol 292 (1) ◽  
pp. 171-178 ◽  
Author(s):  
Mara Cea ◽  
J.C. Seaman ◽  
Alejandra A. Jara ◽  
M.L. Mora ◽  
M.C. Diez
Keyword(s):  
Layer Model ◽  
Variable Charge ◽  
Triple Layer ◽  
Variable Charge Soil

Ultrafast and highly capture of U(VI) by hierarchical mesoporous carbon

2020 ◽  
Vol 108 (9) ◽  
pp. 717-726 ◽  
Author(s):  
Han Guo ◽  
Ying Li ◽  
Huihui Wang ◽  
Ning Zhang ◽  
Alhadi Ishag ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Surface Complexation ◽  
Batch Adsorption ◽  
Layer Model ◽  
Environmental Cleanup ◽  
Triple Layer ◽  
High Efficient ◽  
Diffuse Layer Model ◽  
Capture Capacity ◽  
Inner Sphere Complexes

AbstractIn this study, the hierarchical mesoporous carbon (HMC) was synthesized by the hydrothermal method. The batch adsorption experiments showed that HMC exhibited the ultrafast equilibrium fate (80 % U(VI) capture efficiency within 5 min), high UO22+ capture capacity (210 mg/g, pH = 4.5) and well recyclability. The investigations of XPS techniques indicated the oxygen-containing functional groups were responsible for high efficient UO22+ adsorption. The pH-dependent adsorption was simulated by three surface complexation modellings, revealing that UO22+ adsorption on HMC was excellently fitted by triple layer model using two inner-sphere complexes (i. e. SOUO2+ and SOUO2(CO3)35− species) compared to constant capacitance model and diffuse layer model. These findings are crucial for expanding actual applications of HMC towards the removal of radionuclides under environmental cleanup.

scholarly journals Surface charge characteristics of a variable charge soil (Rhodic Ferralsols) in the Central Highlands

2020 ◽  
Vol 62 (2) ◽  
pp. 65-70
Author(s):  
Quang Chon Nguyen ◽  
◽  
Van Cuong Dinh ◽  
Minh Ngoc Truong ◽  
◽  
...  
Keyword(s):  
Surface Charge ◽  
Variable Charge ◽  
Central Highlands ◽  
Variable Charge Soil

Effect of the size of variable charge soil particles on cadmium accumulation and adsorption

2017 ◽  
Vol 17 (12) ◽  
pp. 2810-2821 ◽  
Author(s):  
Guannan Liu ◽  
Juan Wang ◽  
Wei Xue ◽  
Jinbo Zhao ◽  
Jing Wang ◽  
...  
Keyword(s):  
Cadmium Accumulation ◽  
Soil Particles ◽  
Variable Charge ◽  
Variable Charge Soil

Impact of pre-existing sulphate on retention of imported chloride and nitrate in variable charge soil profiles

Geoderma ◽  
2004 ◽  
Vol 123 (3-4) ◽  
pp. 205-218 ◽  
Author(s):  
V. Rasiah ◽  
J.D. Armour ◽  
N.W. Menzies ◽  
D.H. Heiner ◽  
M.J. Donn
Keyword(s):  
Soil Profiles ◽  
Variable Charge ◽  
Variable Charge Soil
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