Adsorption of a cationic dye, methylene blue, on to chitosan hydrogel beads generated by anionic surfactant gelation

Environmental Technology
Sudipta ChatterjeeSeung H Woo

Abstract

Chitosan hydrogel beads (CSB) formed by sodium dodecyl sulphate (SDS) gelation were used for the removal of a cationic dye, methylene blue (MB), from aqueous solutions. The adsorption capacity of chitosan beads (CB) formed by alkali gelation was low because of charge repulsions between the chitosan (CS) and the MB. The adsorption capacity of CSB (4 g/L SDS gelation) for MB (100 mg/L) was 129.44 mg/g, and it decreased significantly with increasing SDS concentration during gelation. This decrease was a result of increased density of the CSB membrane materials. The CSB membrane materials formed with the 4 g/L SDS gelation showed the highest volumetric adsorption capacity. The MB adsorption on to CB and CSB increased with increasing values for the initial pH of solution. Data from both CB and CSB showed good fit to Sips isotherm models, and the maximum adsorption capacity of CSB (226.24 mg/g) was higher than that of CB (99.01 mg/g).

References

Feb 19, 2004·Journal of Agricultural and Food Chemistry·Masubon Thongngam, D Julian McClements
Oct 19, 2004·Environmental Science & Technology·Richard S Blackburn
Apr 26, 2005·Journal of Colloid and Interface Science·V Vadivelan, K Vasanth Kumar
Jul 5, 2005·Bioresource Technology·Grégorio Crini
Nov 1, 2005·Journal of Hazardous Materials·A GürsesS Karaca
Mar 24, 2006·Journal of Environmental Management·Mahmut Ozacar, I Ayhan Sengil
Nov 14, 2006·Journal of Hazardous Materials·Dursun OzerAhmet Ozer
May 29, 2007·Langmuir : the ACS Journal of Surfaces and Colloids·Nikolaos K LazaridisDimitrios N Bikiaris
Aug 10, 2007·Journal of Hazardous Materials·Gurusamy AnnaduraiJiunn-Fwu Lee
Nov 21, 2007·Journal of Hazardous Materials·Zehra BekçiKadir Yurdakoç
Oct 9, 2008·Advanced Drug Delivery Reviews·Mehrdad HamidiPedram Rafiei
Dec 30, 2008·Journal of Hazardous Materials·Sudipta ChatterjeeSeung H Woo
Jul 29, 2009·Journal of Environmental Sciences (China)·Kamari AzlanLiew Lai Ken
Dec 8, 2009·Bioresource Technology·Sudipta ChatterjeeSeung H Woo
Feb 5, 2010·Bioresource Technology·Sudipta ChatterjeeSeung H Woo

❮ Previous
Next ❯

Citations

Jul 29, 2015·Journal of Environmental Management·Reena SharmaCaroline Schauer
Jun 29, 2016·Journal of Hazardous Materials·Hye-Ran KimJae-Woo Park
Feb 16, 2020·Toxins·Atena Abbasi PirouzNik Iskandar Putra Samsudin
Apr 18, 2021·International Journal of Biological Macromolecules·Yale Luck NunesJosé C S Dos Santos
May 29, 2018·Carbohydrate Polymers·Orietta LeónMarta Fernández-García

❮ Previous
Next ❯

Methods Mentioned

BETA
scanning electron microscopy
equilibrium

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.