Ion-exchange paper chromatography of certain metal ions with aqueous-organic wash liquids

Water is essential for every life processes. However, its quality is deteriorating every day due to the recent industrial advancements. Anthropogenic processes such as industrialization, mining and agricultural activities have led to alarming discharge of heavy metal ions to the aquatic bodies. This possess a greater threat to human, animal and the entire ecosystem wellbeing. Accumulation of heavy metal ions in drinking water beyond permissible limits is detrimental to human health. Therefore, their removal is paramount. Conventional remediation techniques have been employed but have remained expensive and not universally appropriate. This has therefore spurred research interests in the use of adsorption techniques from locally available materials as an environmentally sustainable alternative. Jackfruit seeds are discarded as wastes of a Jackfruit and can be utilized as an ion exchange resin in heavy metal ions removal from wastewater. The present study involved application of previously prepared raw and modified Jackfruit seed resins to study thermodynamics of copper (II), lead (II) and cadmium (II) ions adsorption from synthetic water. FTIR results showed presence of functional groups in raw and modified resins as important sites for studying thermodynamics of adsorption of copper (II), lead (II) and cadmium (II) ions. Thermodynamic data showed that standard Gibb’s free energy () values for all metals were negative indicating that adsorption process was feasible and favourable. Standard enthalpy change (), standard entropy () and activation energy () were positive (> 40 kJ mol-1) and in the order lead (II) > copper (II) > cadmium (II). This confirmed adsorption of copper (II), lead (II) and cadmium (II) ions onto both raw and modified resins was predominated by chemical interactions between the metal ions and the resin active sites. This was confirmed by very low values of sticking probability (S*). The findings indicated that ion exchange Jackfruit seeds resin is promising for heavy metal ions removal from wastewater in an optimized temperature controlled system.

Download Full-text

ChemInform Abstract: SYNTHETIC INORGANIC ION-EXCHANGE MATERIALS. XXV. CHANGE IN THE ION-EXCHANGE SELECTIVITY BY THERMAL TREATMENT OF CRYSTALLINE ANTIMONIC(V) ACID TOWARD ALKALI METAL IONS

Chemischer Informationsdienst ◽

10.1002/chin.198104034 ◽

1981 ◽

Vol 12 (4) ◽

Author(s):

M. ABE ◽

T. ITOH

Keyword(s):

Thermal Treatment ◽

Ion Exchange ◽

Alkali Metal ◽

Metal Ions ◽

Alkali Metal Ions ◽

Inorganic Ion ◽

Exchange Selectivity

Download Full-text

ION-EXCHANGE SEPARATIONS IN THE DETERMINATION OF SOME POLYVALENT METAL IONS IN PLANT TISSUE

Soil Science ◽

10.1097/00010694-196010000-00002 ◽

1960 ◽

Vol 90 (4) ◽

pp. 214-218 ◽

Cited By ~ 11

Author(s):

A. H. HUNTER ◽

N. T. COLEMAN

Keyword(s):

Ion Exchange ◽

Metal Ions ◽

Plant Tissue ◽

Polyvalent Metal

Download Full-text