pH-Controlled Adsorption of Polyelectrolyte Diblock Copolymers at the Solid/Liquid Interface

Langmuir ◽  
2000 ◽  
Vol 16 (14) ◽  
pp. 5980-5986 ◽  
Author(s):  
D. A. Styrkas ◽  
V. Bütün ◽  
J. R. Lu ◽  
J. L. Keddie ◽  
S. P. Armes
Keyword(s):  
Diblock Copolymers ◽  
Liquid Interface ◽  
Controlled Adsorption ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Ph Controlled

Adsorption of Ampholytic Diblock Copolymers from Dilute Aqueous Solution at the Solid/Liquid Interface

Langmuir ◽  
1999 ◽  
Vol 15 (4) ◽  
pp. 1260-1267 ◽  
Author(s):  
H. Walter ◽  
C. Harrats ◽  
P. Müller-Buschbaum ◽  
R. Jérôme ◽  
M. Stamm
Keyword(s):  
Aqueous Solution ◽  
Diblock Copolymers ◽  
Liquid Interface ◽  
Dilute Aqueous Solution ◽  
Solid Liquid Interface ◽  
Solid Liquid

scholarly journals Novel lignocellulosic wastes for comparative adsorption of Cr(VI): equilibrium kinetics and thermodynamic studies

2017 ◽  
Vol 19 (2) ◽  
pp. 6-15 ◽  
Author(s):  
Hajira Haroon ◽  
Syed Mubashar Hussain Gardazi ◽  
Tayyab Ashfaq Butt ◽  
Arshid Pervez ◽  
Qaisar Mahmood ◽  
...  
Keyword(s):  
Active Sites ◽  
Low Cost ◽  
Liquid Interface ◽  
Order Kinetic ◽  
Batch Mode ◽  
Adsorption Sites ◽  
Equilibrium Data ◽  
Controlled Adsorption ◽  
Solid Liquid Interface ◽  
Solid Liquid

Abstract Cr(VI) adsorption was studied for abundantly available low-cost lignocellulosic adsorbents in Pakistan namely, tobacco stalks (TS), white cedar stem (WCS) and eucalyptus bark (EB). Several process variables like contact time, adsorbent dose, pH, metal concentration, particle size and temperature were optimized in batch mode. EB showed high Cr(VI) adsorption of 63.66% followed by WCS 62% and TS 57% at pH 2, which is higher than most of the reported literature. Langmuir isotherm (R2 = 0.999) was well fitted into the equilibrium Cr(VI) data of EB, suggesting homogeneous active sites and monolayer coverage of Cr(VI) onto the EB surface. Freundlich (R2 = 0.9982) isotherm was better fitted to the equilibrium data of TS and WCS, revealing the adsorption sites with heterogeneous energy distribution and multilayer Cr(VI) adsorption. Moreover, the Cr(VI) adsorption of studied adsorbents followed the pseudo-second order kinetic model. Thermodynamic properties were investigated in two temperature ranges, i.e., T1 (303–313 K) and T2 (313–323 K). TS and EB showed the exothermic at T1 and endothermic reactions at T2 with entropy controlled adsorption at the solid-liquid interface, and WCS exhibited an opposite thermal trend with decreasing disorderness at solid-liquid interface as temperature rises. Gibbs free energy (ΔG>0) confirmed the non-spontaneous adsorption process for all studied adsorbents.

Lateral Structures of Thin Films of Ampholytic Diblock Copolymers Adsorbed from Dilute Aqueous Solution at the Solid/Liquid Interface

Langmuir ◽  
1999 ◽  
Vol 15 (20) ◽  
pp. 6984-6990 ◽  
Author(s):  
H. Walter ◽  
P. Müller-Buschbaum ◽  
J. S. Gutmann ◽  
C. Lorenz-Haas ◽  
C. Harrats ◽  
...  
Keyword(s):  
Thin Films ◽  
Aqueous Solution ◽  
Diblock Copolymers ◽  
Liquid Interface ◽  
Dilute Aqueous Solution ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Lateral Structures

scholarly journals On the formation of inclusion complexes at the solid/liquid interface of anchored temperature-responsive PNIPAAM diblock copolymers with γ-cyclodextrin

2017 ◽  
Vol 295 (8) ◽  
pp. 1327-1341 ◽  
Author(s):  
Giuseppe Lazzara ◽  
Richard A. Campbell ◽  
Solmaz Bayati ◽  
Kaizheng Zhu ◽  
Bo Nyström ◽  
...  
Keyword(s):  
Inclusion Complexes ◽  
Diblock Copolymers ◽  
Liquid Interface ◽  
Temperature Responsive ◽  
Solid Liquid Interface ◽  
Solid Liquid

Observation of Femtosecond Acoustic Anomaly in a Solid Liquid Interface

2020 ◽  
Vol 124 (5) ◽  
pp. 2987-2993
Author(s):  
Chi-Kuang Sun ◽  
Yi-Ting Yao ◽  
Chih-Chiang Shen ◽  
Mu-Han Ho ◽  
Tien-Chang Lu ◽  
...  
Keyword(s):  
Liquid Interface ◽  
Acoustic Anomaly ◽  
Solid Liquid Interface ◽  
Solid Liquid
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