Preparation and characterization of porous chitosan-tripolyphosphate beads for copper(II) ion adsorption

2012 ◽  
Vol 127 (6) ◽  
pp. 4573-4580 ◽  
Author(s):  
Shao-Jung Wu ◽  
Tzong-Horng Liou ◽  
Chao-Hsien Yeh ◽  
Fwu-Long Mi ◽  
Tsung-Kuan Lin
Keyword(s):  
Ion Adsorption ◽  
Porous Chitosan

Preparation and characterization of porous chitosan–based membrane with enhanced copper ion adsorption performance

2020 ◽  
Vol 154 ◽  
pp. 104681 ◽  
Author(s):  
Nadia Sahebjamee ◽  
Mohammad Soltanieh ◽  
Seyed Mahmoud Mousavi ◽  
Amir Heydarinasab
Keyword(s):  
Copper Ion ◽  
Ion Adsorption ◽  
Adsorption Performance ◽  
Porous Chitosan

Preparation and Characterization of Chitosan-Based Scaffolds for Biomedical Applications

2006 ◽  
Vol 514-516 ◽  
pp. 1005-1009 ◽  
Author(s):  
José V. Araújo ◽  
J.A. Lopes da Silva ◽  
Margarida M. Almeida ◽  
Maria Elisabete V. Costa
Keyword(s):  
Biomedical Applications ◽  
Freeze Drying ◽  
Average Pore Size ◽  
Composite Scaffolds ◽  
Average Pore ◽  
Chitosan Matrix ◽  
Freeze Dried ◽  
Porous Chitosan ◽  
Interconnected Structure

Porous chitosan/brushite composite scaffolds were prepared by a freeze-drying technique, starting from brushite suspensions in chitosan solutions. The obtained scaffolds showed a regular macroporous and interconnected structure with brushite particles uniformly distributed in the chitosan matrix. The variation of the brushite concentration affected the microstructure of the final freeze-dried scaffold, in particular, its porosity and its average pore size. The yield strengths of the composite scaffolds could also be improved by the increase of the brushite content.

Characterization of novel calcium hydroxide‐mediated highly porous chitosan‐calcium scaffolds for potential application in dentin tissue engineering

2020 ◽  
Vol 108 (6) ◽  
pp. 2546-2559 ◽  
Author(s):  
Diana Gabriela Soares ◽  
Ester Alves Ferreira Bordini ◽  
Fernanda Balestrero Cassiano ◽  
Erika Soares Bronze‐Uhle ◽  
Leandro Edgar Pacheco ◽  
...  
Keyword(s):  
Tissue Engineering ◽  
Calcium Hydroxide ◽  
Potential Application ◽  
Porous Chitosan ◽  
Highly Porous

scholarly journals Adsorption of Chromium(VI) Ions on to TiO2 from Aqueous Solution

1998 ◽  
Vol 16 (2) ◽  
pp. 117-126 ◽  
Author(s):  
Fu Hongxiang ◽  
Lu Gongxuan ◽  
Li Shuben
Keyword(s):  
Heavy Metal Ions ◽  
Ion Concentration ◽  
Spectroscopic Methods ◽  
Ion Adsorption ◽  
Adsorption Efficiency ◽  
Organic Species ◽  
Chromium Vi ◽  
Ft Ir ◽  
Ir Spectroscopic

The study of the adsorption of the CrVI ion on to TiO2 not only provides information on the removal of heavy metal ions from polluted aqueous solutions; but is also useful for further investigation of the photocatalytic decontamination of the CrVI ion or of CrVI–organic species which co-exist as pollutants with TiO2 when the latter is used as a stable and highly efficient photocatalyst. It has been found that dark adsorption of the CrVI ion on to TiO2 is mainly dependent on the acidity of the system and the initial concentration of the CrVI ion. As the pH of the system increases, so the extent of adsorption of the CrVI ion decreases. The greatest adsorption was obtained with an initial CrVI ion concentration of ca. 300 μmol/l. The presence of phosphate or acetate ions in the system dramatically decreases the adsorption efficiency of the CrVI ion. In contrast, the addition of formic acid leads to a limited increase in the extent of CrVI ion adsorption. Other organic ions and organic compounds examined showed no interference in CrVI ion adsorption. FT-IR spectroscopic methods were used for the characterization of CrVI ion adsorption on to TiO2.

Sign in / Sign up

Export Citation Format

Share Document