Chloride binding capacity of LDHs with various divalent cations and divalent to trivalent cation ratios in different solutions

CrystEngComm ◽  
2019 ◽  
Vol 21 (44) ◽  
pp. 6790-6800
Author(s):  
Mengzhu Chen ◽  
Fang Wu ◽  
Linwen Yu ◽  
Yuxin Cai ◽  
Hang Chen ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Binding Capacity ◽  
Divalent Cations ◽  
Surface Adsorption ◽  
Trivalent Cation ◽  
Chloride Binding ◽  
Cation Ratios

Chlorides were bonded by LDHs due to ion exchange and surface adsorption. Carbonation resulted in the debonding of the chloride bond by ion exchange, however, surface adsorption was not affected by carbonation.

Effect of External Calcium and other Divalent Cations on K+ Contractures in Denervated Slow Skeletal Muscle Fibers of the Frog

2019 ◽  
Author(s):  
Leonardo Hernández
Keyword(s):  
Skeletal Muscle ◽  
Binding Capacity ◽  
Divalent Cations ◽  
Muscle Fibers ◽  
Free Calcium ◽  
Slow Skeletal Muscle ◽  
Skeletal Muscle Fibers ◽  
Free Calcium Concentration ◽  
Chronic Denervation ◽  
Denervated Muscles

The influence of Ca2+ and other divalent cations on contractile responses of slow skeletal muscle fibers of the frog (Rana pipiens) under conditions of chronic denervation was investigated.Isometric tension was recorded from slow bundles of normal and denervated cruralis muscle in normal solution and in solutions with free calcium concentration solution or in solutions where other divalent cations (Sr2+, Ni2+, Co2+ or Mn2+) substituted for calcium. In the second week after nerve section, in Ca2+-free solutions, we observed that contractures (evoked from 40 to 80 mM-K+) of non-denervated muscles showed significantly higher tensions (p<0.05), than those from denervated bundles. Likewise, in solutions where calcium was substituted by all divalent cations tested, with exception of Mn2+, the denervated bundles displayed lower tension than non-denervated, also in the second week of denervation. In this case, the Ca2+ substitution by Sr2+ caused the higher decrease in tension, followed by Co2+ and Ni2+, which were different to non-denervated bundles, as the lowest tension was developed by Mn2+, followed by Co2+, and then Ni2+ and Sr2+. After the third week, we observed a recovery in tension. These results suggest that denervation altering the binding capacity to divalent cations of the voltage sensor.

scholarly journals Chloride Binding Capacity and Its Effect on the Microstructure of Mortar Made with Marine Sand

2021 ◽  
Vol 13 (8) ◽  
pp. 4169
Author(s):  
Congtao Sun ◽  
Ming Sun ◽  
Tao Tao ◽  
Feng Qu ◽  
Gongxun Wang ◽  
...  
Keyword(s):  
Binding Capacity ◽  
Chloride Content ◽  
Chloride Ions ◽  
Fine Aggregate ◽  
Chloride Binding ◽  
River Sand ◽  
Total Chloride ◽  
Curing Period ◽  
Marine Sand ◽  
Bound Chloride

Chloride binding capacity and its effect on the microstructure of mortar made with marine sand (MS), washed MS (WMS) and river sand (RS) were investigated in this study. The chloride contents, hydration products, micromorphology and pore structures of mortars were analyzed. The results showed that there was a diffusion trend for chloride ions from the surface of fine aggregate to cement hydrated products. During the whole curing period, the free chloride content in the mortars made by MS and WMS increased firstly, then decreased and stabilized finally with time. However, the total chloride content of three types of mortar hardly changed. The bound chloride content in the mortars made by MS and WMS slightly increased with time, and the bound chloride content included the MS, the WMS and the RS arranged from high to low. C3A·CaCl2·10H2O (Friedel’s salt) was formed at the early age and existed throughout the curing period. Moreover, the volume of fine capillary pore with a size of 10–100 nm increased in the MS and WMS mortar.

Defluorination by ion exchange of SO42− on alumina surface: Adsorption mechanism and kinetics

Chemosphere ◽  
2021 ◽  
Vol 273 ◽  
pp. 129678
Author(s):  
Yingjie He ◽  
Lei Huang ◽  
Baocheng Song ◽  
Bichao Wu ◽  
Lvji Yan ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Adsorption Mechanism ◽  
Surface Adsorption ◽  
Alumina Surface ◽  
Mechanism And Kinetics

Synthesis of Li0.6Zn1.2PO4 and its Selectivity to Li+ Exchange

2012 ◽  
Vol 442 ◽  
pp. 54-57
Author(s):  
Heng Li
Keyword(s):  
Solid State ◽  
Ion Exchange ◽  
Chemical Analysis ◽  
Surface Adsorption ◽  
Insertion Reaction ◽  
Spinel Type ◽  
X Ray ◽  
Crystallization Method ◽  
Treated Sample ◽  
Saturation Capacity

The ion-exchanger Li0.6Zn1.2PO4of spinel type was prepared by a solid state reaction crystallization method. The extraction/insertion reaction with this material was investigated by X-ray, saturation capacity of exchange, and Kd measurement. The experimental results have proved that the acid-treated sample has a capacity of exchange 2.4mmol•g-1for Li+in the solution, The chemical analysis showed that the Li+extraction/insertion progressed mainly by ion-exchange mechanism and surface adsorption.

Effect of triethanolamine on the chloride binding capacity of cement paste with a high volume of fly ash

2021 ◽  
pp. 125612
Author(s):  
Yibiao Teng ◽  
Songhui Liu ◽  
Zhaocai Zhang ◽  
Jiangwei Xue ◽  
Xuemao Guan
Keyword(s):  
Fly Ash ◽  
Cement Paste ◽  
Binding Capacity ◽  
High Volume ◽  
Chloride Binding

Improving the chloride binding capacity of cement paste by adding nano-Al2O3

2019 ◽  
Vol 195 ◽  
pp. 415-422 ◽  
Author(s):  
Zhiqiang Yang ◽  
Yun Gao ◽  
Song Mu ◽  
Honglei Chang ◽  
Wei Sun ◽  
...  
Keyword(s):  
Cement Paste ◽  
Binding Capacity ◽  
Chloride Binding

scholarly journals A study of ion-exchange chromatography in an expanded bed for bovine albumin recovery

2009 ◽  
Vol 52 (2) ◽  
pp. 427-436 ◽  
Author(s):  
João Batista Severo Jr. ◽  
Roberto Rodrigues de Souza ◽  
José Carlos Curvelo Santana ◽  
Elias Basile Tambourgi
Keyword(s):  
Ion Exchange ◽  
Exchange Resin ◽  
Binding Capacity ◽  
Ion Exchange Resin ◽  
Exchange Chromatography ◽  
Expanded Bed Adsorption ◽  
Expanded Bed ◽  
Bed Height ◽  
Salt Addition ◽  
Bed Expansion

In the present work, the effect of bed expansion on BSA adsorption on Amberlite IRA 410 ion-exchange resin was studied. The hydrodynamic behavior of an expanded bed adsorption column on effects of the biomolecules and salt addition and temperature were studied to optimize the conditions for BSA recovery on ion-exchange resin. Residence time distribution showed that HEPT, axial dispersion and the Pecletl number increased with temperature and bed height, bed voidage and linear velocity. The binding capacity of the resin increased with bed height. The Amberlite IRA 410 ion-exchange showed an affinity for BSA with a recovery yield of 78.36 % of total protein.

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