PREPARATION AND CHARACTERIZATION OF LAFEO3 USING DUAL-COMPLEXING AGENTS FOR PHOTODEGRADATION OF HUMIC ACID
Journal Title: Environment & Ecosystem Science (EES) - Year 2018, Vol 2, Issue 2
Abstract
Humic Acid (HA) is considered as one of the major components that represents a major fraction of dissolved in natural water. Complex mixture of organic compounds on HA lead to the problematic issue for municipal wastewater treatment plants such as undesirable taste, colour to drinking water and fouling in pipe line. The reaction of HA with chlorine during disinfection processes would produce carcinogenic by-products like trihalomethanes. In this study, for the first time, LaFeO3 photocatalyst was successfully synthesized via gel-combustion method using combined glucose/citric acid as chelating agents and was further calcined at 400°C. The photocatalytic activity of samples was investigated by degradation of Humic Acid (HA) in water under visible light irradiation. Results proved that the photocatalytic degradation of HA is dependent on the catalyst dosage, initial concentration of HA, and oxygen availability in the aeration. The photocatalytic degradation also was enhanced by high surface area of synthesized LaFeO3 obtained by amorphous structure. Overall, the percentage removal of HA by varying the catalyst dosage are in the order of 88%, 90%, 98% and 97% for 0.6 g/L, 0.8 g/L, 1.0 g/L, and 1.2 g/L respectively for an irradiation period of 120 minutes. Next, the removal of HA by manipulating its initial concentration are 98%, 90%, 85% and 86% with respect to 10 g/L, 20 g/L, 30 g/L and 40 g/L taken for 120 minutes. Overall, the optimal operational parameters for the removal of HA of catalyst dosage is 1.0 g/L performing at 98%, for initial concentration of HA which was removed efficiently at 97% is 10 g/L and via aeration in this study was about 93%, after 120 min of irradiation times.
Authors and Affiliations
N. Yahya, F. Aziz, nriquez M. A. O, A. Aizat, J. Jaafar, W. J. Lau, W. N. W. Salleh, A. F. Ismail
Keywords
Related Articles
- EP ID EP402336
- DOI 10.26480/ees.02.2018.30.34
- Views 130
- Downloads 0
EFFECT OF DIFFERENT SOLVENT ON ASYMMETRIC POLYSULFONE (PSF) MEMBRANES FOR CO2/CH4 SEPARATION
The asymmetric membranes solution were developed for CO2/CH4 separation by mixing polysulfone (PSf) with N-Methyl-2-pyrrolidone (NMP). A volatile solvent, Tetrahydrofuran (THF) was introduced into the casting solution by...
EVALUATING ENVIRONMENTAL CONSIDERATIONS WITH CHECKLIST AND DELPHI METHODS, CASE STUDY: SURAN CITY, IRAN
One of the major environmental concerns is to ensure that projects and projects are operational in accordance with the provisions and commitments contained in the report of the evaluation studies approved. In order to as...
STUDY OF THE PHYTODIVERSITY ALONG ANTORUN RESERVOIR, NEAR OGBOMOSO, NIGERIA
The Antorun river is a flowing river situated at Onipanu village, along Ogbomoso-Iresaapa road, Nigeria. It was constructed primarily for irrigation purpose through the Nigerian-Canadian vegetation project and is under s...
DISTINCTIVENESS AND POTENTIALS OF TWO FLOWERING ROADSIDE HEDGEROWS, TURNERA ULMIFOLIA AND MELASTOMA MALABATHRICUM AS BENEFICIAL PLANTS FOR INSECTS
Beneficial flowering plants play a vital role in attracting beneficial insects such as parasitoid that controls insect pests. In order to evaluate the effectiveness of two species of flowering plants as beneficial hedge...
THE EFFECT OF COSURFACTANT IN CO2 ABSORPTION IN WATER – IN – OIL EMULSION
Carbon dioxide is one of the main concern in the environment when it comes to energy usage of fuel, even the fuel is coming from natural gas sources. Apart from endangered the environment, carbon dioxide also affects the...