Research List

No.	Researcher	Title	Abstract	Year
1551	May Myat Nwe	PREPARATION AND CHARACTERIZATION OF NANOSIZED ULTRAMARINE BLUE PIGMENT FROM NATURAL KAOLIN SAMPLE	The aim of this research is the preparation of nanosized Ultramarine blue pigment for the production of pozzolanic cement. Ultramarine blue pigment was made from natural kaolin which was collected from Kyaukpataung Township, Mandalay Region, Myanmar. pH of natural kaolin sample was determined and then was characterized by EDXRF, XRD, SEM, FT IR and TG-DTA techniques. All of the results showed that natural kaolin sample had appropriate properties for the preparation of nanosized Ultramarine blue pigment. The procedure for the preparation of Ultramarine blue pigment involved the heat activation of kaolin. The activated kaolin was then characterized by XRD and SEM techniques. The comparison of XRD patterns of activated kaolin with natural kaolin sample showed that most peaks of the kaolinite mineral disappeared in activated kaolin. The average crystallite size of activated kaolin was 35.86. The comparison of SEM images of activated kaolin with natural kaolin sample showed that smaller aggregates were closer to one another in activated kaolin. Therefore, the natural kaolin sample was transformed into nano metakaolin state during calcination. The yield percent of the prepared Ultramarine blue pigment was 49.32 %. The Ultramarine blue pigment was characterized by XRD, SEM, and FT IR techniques. From analyzed data, Ultramarine blue pigment has cubic crystal form and has cohesive agglomerated structure.	2021
1552	Su Myat Htay	OPTIMIZATION FOR COLOUR REMOVAL PROPERTY OF PREPARED GRAPHENE OXIDE (GO)	In this research work, graphene oxide (GO) was prepared from graphite powder by Modified Hummer�s method. Layers of graphene oxide consist of various oxidizing groups like hydroxyl, epoxides, carbonyl and carboxyl at the basal planes as well as at the edges. Prepared GO were characterized by XRD, FT IR, UV-visible, SEM and EDX techniques. To investigate the colour removal property of GO, malachite green (MG) was used as model dye contaminant. Firstly, wavelength of maximum absorption (?max) of malachite green was investigated at different dye concentrations in the wavelength range of 400-800 nm. Malachite green was found to have ?max of 617 nm. To investigate the optimum conditions for colour removal, effects of concentration, pH, contact time and dosage on removal of malachite green dye using prepared GO were carried out. The optimal conditions were found to be 10 ppm of MG concentration, pH 4, 60 min of contact time and 0.08 g of adsorbent dosage for colour removal of malachite green by using prepared GO.	2021
1553	Ohn Mar Khin	REMOVAL OF PHOSPHATE FROM NATURAL WATER RESOURCES USING ACID TREATED COAL FLY ASH	The excess of phosphorus (P) in the environment can promote chemical pollution and harm ecosystems, especially water. The protection and restoration of natural lakes is increasingly important in countries with limited water resources in the world. The increasing release of phosphate-containing wastewater to natural water bodies such as natural lakes have caused eutrophication, which has become a globally concerning problem. In order to overcome accelerating eutrophication, therefore, there is a need to control and reduce the level of phosphate in water resources. The aim of this research was to detect the phosphate-uptake capacity from five eutrophic lakes at Yangon urban region using low cost of sorbents like modified coal fly ash. This research work conducted during August 2018 to April 2020. The amount of phosphate ion in water bodies was determined by using standard spectrophotometric method. According to the investigated data, phosphate-uptake capacity of acid treated coal fly ash was 97.86 percent, which was obtained by batch tests in laboratory. The results of this study showed that acid treated coal fly ash was effective in removal of phosphate ions in water bodies of natural lake. Thus, the results allow to evaluating the chances of successful lake restoration by applying acid treated coal fly ash to natural water bodies.	2021
1554	Chang Myaw	PREPARATION OF GELATIN DERIVED FROM FISH SKINS OF FISH SPECIES, CIRRHINUS MRIGALA (NGA-GYIN) AND NOTOPTERUS CHITALA (NGA-PHE) AND THEIR CHARACTERIZATION	The aim of the research work is the isolation of gelatin powder from Cirrhinus mrigala (Nga-gyin) and Notopterus chitala (Nga-phe) fish skin. Gelatin was derived from the thermal degradation of collagen, which is the principal protein found in skin and bones. Gelatin was extracted by acid treatment and confirmed by FT IR analysis. The physicochemical properties of prepared gelatin such as moisture content, ash content, pH and solubility in water, colour appearance, odour description, viscosity, gelling and melting temperatures were also determined. The yield percent of prepared gelatin from Nga-phe skin was greater than that of Nga-gyin skin. The prepared gelatin was characterized by Fourier Transform Infrared (FT IR) spectrophotometer, Scanning Electron Microscopy (SEM) and Thermogravimetric-Differential Thermal Analysis (TG-DTA). FT IR analysis showed the chemical bond formation of gelatin. Morphological investigation showed that the Nga-gyin skin (Ngy) exhibited sponge or coral structure and the surface of Nga-phe skin (Nph) had denser strand with small pores. TG -DTA data showed three steps of degradation. The initial degradation was due to moisture, the second was due to thermal degradation of composite and the third was denaturing of protein. Therefore, the use of fish skin waste as raw material in the gelatin production is quite potential and plays a major role in recycling of waste.	2021
1555	Ei Ei Hpoo	OPTICAL PROPERTIES OF UNDOPED ZINC OXIDE AND NICKEL DOPED ZINC OXIDE	The main aim of the research work is to study the optical properties of undoped ZnO and Ni doped ZnO. Undoped ZnO and Ni doped ZnO were prepared by using a co-precipitation method. The prepared undoped ZnO and Ni doped ZnO were characterized by Thermogravimetric-Differential Thermal Analysis(TG-DTA), X-ray Diffraction (XRD), Fourier Transform Infra-red (FT IR) spectroscopy, Energy Dispersive X-ray (EDX) spectrometry and Scanning Electron Microscopy (SEM) analyses.TG-DTA analysis of the synthesized undoped ZnO and Ni doped ZnO were carried out to determine the appropriate calcination temperature. From XRD analysis, it was observed that the average crystallite sizes of the prepared undoped ZnO and Ni doped ZnO were 28 and 22 nm, respectively. In FT IR spectra of undoped ZnO and Ni doped ZnO powder, the prominent peak of OH stretching, H-O-H bending and M-O stretching vibrations were observed. Morphological studies were conducted using SEM to confirm the uniform distribution of particles. UV-Visible spectrum showed the absorbance peaks in the 200-800 nm region. From UV-Visible spectral data, it was found that the band gap values of undoped ZnO and Ni doped ZnO are 2.7 and 2.8 eV, respectively.	2021
1556	Myo Than	ASSESSMENT OF HEAVY METALS POLLUTION AND DEGREE OF CONTAMINATION IN THE HEINDA MINING AREA, DAWEI TOWNSHIP	In this research, five soil samples from the mining sites and one from control site from mining works were collected from Heinda mining areas in Dawei Township, Tanintharyi Region in March, 2019. Physicochemical properties of collected soil samples (S1, S2, S3, S4, and S5 from the industrial mining sites and undisturbed site (S0) were determined. All soil samples were nearly neutral in the pH range of 6.32-7.03. Moisture of soil samples were in the range of 0.11- 0.40. Soil types of soil samples were found to be loamy sand for S0, and sand for S1, S2, S3, S4 and S5. In addition, the concentrations of some heavy metals (Pb, Cd, Mn, Zn, Fe, Cu) contents in soil samples were analysed by Atomic Absorption Spectrophotometric method. According to AAS method, Pb contents of soil samples (S0, S1, S2, S3, S4, S5) were not detected. However, Cd contents were observed as 0.05, 0.04, 0.04, 0.07, 0.04, and 0.03 ppm, respectively. Moreover, 6.04, 54.26, 31.42, 19.76, 40.10, and 36.86 ppm of Mn, 0.35, 0.65, 0.69, 0.67, 0.77, and 0.62 ppm of Zn, 39.02,48.02, 49.76, 45.41, 48.06 and 44.46 ppm of Fe and then, 0.50 ppm of Cu was observed for S0, but not detected for S1, S2, S3, S4 and S5. The contamination factor (Cf), degree of contamination (Cd) and pollution load index (PLI) were used to assess the degree of heavy metal pollution in soil. According to PLI, the sites were classified as moderately contaminated with Zn, considerably contaminated with Fe, and highly contaminated with Mn compared to control site.	2021
1557	Phyu Phyu Zan	PREPARATION AND CHARACTERIZATION OF ZINC SULPHIDE NANOPARTICLES USING HONEY AS CAPPING AND STABILIZATION AGENTS	Zinc sulphide (ZnS) nanoparticles were successfully prepared by using Zn (NO3)2.6H2O and Na2S as precursors and different volumes of honey as capping and stabilizing agents. The structural, morphological, thermal and optical properties of as synthesized nanoparticles were investigated using x-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy- energy dispersive x-rays spectroscopy (SEM-EDX), Fourier transform infrared spectroscopy (FT IR), thermogravimetric differential thermal analysis (TG-DTA) and UV-visible spectroscopy. ZnS nanoparticles were indexed as hexagonal crystal structure with particles size ranging from 12.9 to 17.2 nm. The average particle size was also measured by TEM using image J software. EDX analysis revealed the high purity of synthesized zinc sulphide nanoparticles. From TG-DTA analysis and FT IR, biomolecules were involved in synthesis of ZnS nanoparticles because of the presence of organic compounds. The ultraviolet absorption spectra showed the blue shift in absorption maxima due to the quantum effect. The results revealed the direct relationship between volume of honey while the reverse relation were observed for absorption wavelength, crystallite size and refractive index of ZnS nanoparticles.	2021
1558	Toe	PREPARATION AND CHARACTERIZATION OF MAGNESIUM FERRITE (MgFe2O4) NANOPARTICLES	The materials with porous structure and high surface area are very popular for several applications in nanotechnology in the current years. The present research deals with a study on the synthesis and characterization of (spinels) nanoparticles (MgFe2O4). Two types of MgFe2O4 nanoparticles were synthesized by sol-gel method using two different acids such as acetic acid and formic acid. The metal nitrates such as magnesium nitrate and ferric nitrate were used as oxidizers. The gels were dried in the oven at temperature of 105�C to obtain constant weights. The resulting samples were thermally treated in the muffle furnace at temperature of 400 �C for four hours to get required MgFe2O4 nanoparticles. The prepared samples were characterized by X-ray powder diffraction (XRD), Fourier transform Infrared spectroscopy (FTIR) and Energy Dispersive X-ray fluorescence (EDXRF).	2021
1559	May Thet Tun	OPTIMIZATION THE EFFICIENCY OF ORGANIC AMENDMENTS FOR REMEDIATION OF INSECTICIDE-CONTAMINATED SOIL	The main aim of this research is to examine the optimization of the organic amendments for remediation of insecticide contaminated soil. The waste materials for crude protein contents, fish scale (Cirrhinus cirrhosus), chickpea shell (Cicer arietinum L.) and peanut shell (Arachis hypogaeal L.) were collected from Pyay Township, Bago Region. The crude proteins were extracted from the selected sources by trichloroacetic acid (TCA) method, and evaluated the yield % of nitrogen. The nitrogen contents of fish scale, chick pea shell and peanut shell were found to be 1.527 %, 0.901%, and 0.990%, respectively. Furthermore, the protein extract from selected sources were confirmed by chemical tests. According to the result, the fish scale waste was found to possess the highest content of protein. The fish scale could be potentially applied as a nitrogen source in the determination of soil enzyme activity and degradation of insecticide in soil. Before treatment, two types of amendments were prepared by fermentation for 10 days on mixing the samples viz., FSJ (fish scale-FS: Jaggery-J - 10:10 w/v) and FST (FS: Treacle-T - 10:10 w/v). A laboratory bench study was conducted to assess the removal efficiency of FSJ and FST on 1 ppm insecticide contaminated soil. Three different nitrogen additives from two natural sources; FSJ, FST and one chemical, NH4-N source with a concentration 4%each treatment were applied on insecticide contaminated soil along with control (no treatment). The residual insecticide (as its metabolite 3-phenoxybenzoic acid 3-PBA) in soil samples extracted from the experimental plot was examined using UV-vis spectrophotometer. After five weeks treatment, the removal efficiency of FSJ and FST treatments was found significantly increased. The profile of soil urease activity in the treated and contaminated soil was also determined by Phenol-Hypochlorite method. The overall results indicated that appropriate waste- amendment application can promote the removal of PBA as well as maintain the activity of urease enzyme in soil.	2021
1560	Htun Minn Latt	PREPARATION OF WHITE STICKY RICE STARCH-CLAY NANOCOMPOSITE FILMS AND ITS APPLICATION	Plastic materials are not easily degradable and produce hazardous waste, causing environmental problem. In order to solve this problem, the uses of biodegradable polymers from renewable sources were generated. In this study, polymer films of polyvinyl alcohol (PVA)�white sticky rice starch were prepared by casting method. White sticky rice starch was extracted from white sticky rice grains collected from Myothit Township, Magway Region, and yield percentage was 64 %. Physicochemical properties such as pH, moisture percent, true density and bulk density and porosity of sticky rice starch were determined as 7.10, 10.51 %, 3.85 g mL-1 , 2.41 g mL-1 and 37.50 %, respectively. Semi-crystalline nature of the sticky rice starch with the average crystallite size of 51.65 nm was shown by XRD. Nanoclay was prepared from volcanic mud of Nagarpwak Taung in Minbu Township, Magway Region and the crystallite size was 30.79 nm. Nanocomposite films of PVA � starch � clay- glycerol were prepared by varying the ratios of nanostarch and nanoclay, i.e., 50:50 and 75:25. PVA � starch � clay- glycerol (75:25) film was found to have more flexible and plasticizing effect than the film with the ratio of 50:50. Biodegradability of these films was tested by soil burial method and the film with nanostarch and nanoclay with the ratio of 75:25 completely degraded after 18 days. For fruit coating application tomato fruits were dipped in prepared nanocomposite film and the tomato fruits were still fresh after 25 days compared to 8 days of noncoated tomato fruit.	2021

Research Publications

Myanmar Academy of Art & Science List of Research