Khansaa Al-Essa

Email: khansaa.essa@gmail.com, k.essa@jpu.edu.jo

 Mobile: 00962-798619151

I am analytical chemist, professor assistant, Jerash University, Jordan.

I have excellent experience in analytical laboratory instruments; during my postdoctoral stay in California, I had got special experiences in the advanced lab of Peter A Rock Thermochemistry Laboratory and NEAT ORU, University of California at Davis, under the supervision of Professor Alexandra Navrotsky.

During my staying at NEAT ORU lab, I measured the interface enthalpy of nanocrystalline silver(I) oxide (Ag2O.nH2O) I synthesized Ag2O.nH2O nanocrystalline samples of varying surface areas and degrees of agglomeration by wet chemical technique. Interface area and interface enthalpy were estimated. This work provides the first calorimetric measurement of the interface enthalpy of nanocrystalline silver(I) oxide (Ag2O.nH2O).

My researches in the field of wastewater and water treatment focus in using different low-cost, natural adsorbents from the Jordanian local environment. I studied the adsorption isotherm of humic acid onto local kaolinite clay using different isotherm models, trying to explore the effects of humic acid concentration, pH, and temperature during this process. Kinetic, equilibrium and thermodynamic studies of adsorption of some heavy metals from aqueous solution onto modified adsorbent were also investigated using both batch and column techniques.