Research Papers/Topics in Applied Chemistry

COMPARATIVE STUDIES OF THE BIOSORPTION OF HEAVY METALS ( LEAD & ZINC) USING TEA LEAVES (CAMELIA SINENSIS) & TEA FIBRE AS ADSORBENT

Abstract: This research has helped us to ascend from the initial two exploratory studies to a more advanced general conclusion and theory that tea leaves (Camellia sinensis) has a great potential for Pb(ii) and Zn uptake, as such, a more suitable Low-cost adsorbent for the effective removal of Pb (II) and Zn from industrial effluents waste water than tea fibre. This is coined from the results of the different biosorption studies carried out as a function of contact time, initial metal ion...

Kinetic studies of the biosorption of lead and zinc using tea leaf

Abstract: In this research work, Low-cost adsorbent was prepared from Camellia sinensis,physicochemical characteristics and the effective removal of Lead and Zinc from an aqueous phase were evaluated.The Camellia sinensis adsorbent precursor was characterized in terms of adsorbent dose, initial concentration and contact time. Aqueous phase adsorption studies were carried out under kinetic studies of pseudo first order, pseudo second order kinetics and the residue concentration of Lead and...

Computational studies of Sulphur trioxide and its protonated analogues

This article reports quantum chemical calculations on sulphur trioxide (SO3) and its protonated analogues (HSO3+and HOSO2+) by employing six different computational methods. This covers the simple Hatree Fock (HF) method, coupled cluster method, the Gaussian-4 (G4) compound method amongst others with two different basis sets (6-311++G** and cc-pVDZ). Optimized geometries, bond distance, rotational spectroscopy, dipole moment, proton affinity, vibrational spectroscopy and vibrational zero-...

ISOLATION AND CHARACTERIZATION OF LUPEOL FROM THE METHANOL LEAF EXTRACT OF TAPINANTHUS DODONEIFOLIUS GROWING ON VITEX DONIANA

Tapinanthus dodoneifolius belongs to the family Loranthaceae and is widely distributed in West Africa, Europe and Asia, commonly known as mistletoe. It exhibits a wide array of pharmacological activities including antimalarial, anticonvulsant, anti- microbial, and is effective in the relief of menstrual and stomach pain. Lupeol, a pentacyclic triterpenoid was isolated for the first time from the methanol leaf extract of Tapinanthus dodoneifolius and characterized by spectral analysis. The...

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