Shahnaz Sultana

• Master of Science
• Bangladesh Atomic Energy Commission

Although copper (Cu) is a very beneficial metal, having too much of it in the body can cause lung issues, severe anemia, nausea, and vomiting. In order to extract Cu (II) ions from aqueous solution, an adsorbent was constructed in this study employing pre-irradiation grafted Ethylene tetrafluoroethylene (ETFE) film. The grafting method was used to...

For many different applications, functional polymeric materials are extremely important in electrochemical reactions. The development of polymer electrolytes, such as those used in fuel cells, depends heavily on these functional materials. One of the most significant sources of power for applications in numerous industries is provided by fuel cells...

Hydrogels are three-dimensional, hydrophilic networks of polymers with a high water absorption capacity. We investigated the removal of monovalent cationic dye, methylene blue, from aqueous solutions by a polyvinyl alcohol/Sodium alginate/Starch mix hydrogel to discover a solution to the environmental waste-water problem. By applying a gamma radiat...

Tea is a highly common beverage worldwide. In addition to other particles, it contains a range of minerals and trace elements. Even though many are necessary for humans, some could be hazardous. Scientists have long been interested in the toxicity of trace metals and how they affect human health. By using Flame Atomic Absorption Spectrophotometer,...

This work describes the investigation of applicability of Sulfonated Glycidylmethacrylate (GMA) grafted non-woven polyethylene (PE) adsorbent for the efficient removal of uranium from aqueous solutions. The adsorbent film was prepared by the gamma radiation (pre-radiation) technique of GMA grafting onto non-woven PE and the epoxide group of GMA con...

Selective isolation of uranium (VI) from wastewater is now a subject of concern due to its damaging effect on living beings. In this study, the pre-irradiation technique was used to prepare grafted polymeric adsorbent by diallyl dimethyl ammonium chloride (DADMAC) and acrylic acid (AAc) onto nonwoven polyethylene fabric (PE) and the grafted adsorbe...

In the present research work, γ-ray initiated grafting of Glycidyl Methacrylate (GMA) on non-woven polyethylene fabrics was followed by amine functionalization. Dependence of amination yield on degree of grafting was investigated. Extensive examinations on the adsorption of anionic dye Methyl Orange (MO) from aqueous solution by the functionalized...

Fabrication of Starch-Acrylic acid-Acrylamide hydrogel were accomplished by the use of gamma rays from Co-60 source at room temperature. The adsorbent were characterized by IR. The prepared absorbent was utilized for absorption of uranium (VI) from aqueous solution. To investigate the effect of adsorption conditions on absorption capacity of the ad...

This study focuses on the adsorption of hazardous Cr (III) and Cu (II) ions from aqueous solution by applying modified waste polypropylene (PP) fabric as an adsorbent. Pre-irradiation technique was performed for grafting of sodium styrene sulfonate (SSS) and acrylic acid (AAc) onto the PP fabric. The monomer containing 8% SSS and 16% AAc in water w...

In this study, a new amidoximated adsorbent based on waste polypropylene (PP) fabric was prepared for the adsorption of aqueous Cr (VI) metal ions. Pre-irradiation technique was employed for grafting of acrylonitrile (AN) on PP fabric. The grafting reaction was carried out at 80 o C in a water bath for 4 hours utilizing sulfuric acid (2% of AN) as...

Nowadays developing countries around the globe have been undergoing rapid industrialization which is eventually responsible for environmental contamination. For proper assessment of the level of pollution and the proper application of remediation measures, it is imperative to know the pristine geochemistry of the system. In that regard, environment...

Dye removal from industrial effluents is of great importance because of its adverse impact on human beings and the environment. The current study is focused on the adsorption of methylene blue (MB) from an aqueous solution using grafted polypropylene fabric as an adsorbent. The non-oven polypropylene irradiated by 30 kGy radiation was treated (at 8...

PE adsorbent

Application of amine-functionalized glycidyl methacrylate grafted non-woven polyethylene fabric in the removal of Cr (VI) Ions from aqueous solution

In present study acrylic acid (AAc) and sodium styrene sulfonate (SSS) were grafted onto non-woven polyethylene fabric using pre-irradiation method and the grafted adsorbent is employed for Cr(III) and Pb(II) adsorption. After irradiation of the non-woven polyethylene fabrics with 50 kGy radiation dose the grafting reaction was carried out at 80º C...

To observe the current hydro-geo-chemical condition of shallow aquifers and the response from anthropogenic activities as well as to study the arsenic contents and affiliated health risks, groundwater samples from different parts of north-central Bangladesh (Tangail) were studied. In doing so, analytical parameters, including pH, total dissolved so...

An environmental affable, economically feasible and reusable sulfonated adsorbent were constructed by gamma radiation grafting of glycidyl methacrylate (GMA) on non-woven polyethylene fabric and subsequent chemical modification. Highest graft yield of 343.31% was obtained at favourable conditions: 30 kGy radiation dose, 5% monomer concentration, ad...

Nowadays, grafted polymeric composite has received much attention as an alternative adsorbent of heavy metal removal. The grafted polymeric adsorbent (GPA) in the form of composite was prepared using diallyl dimethyl ammonium chloride (DADMAC) and acrylic acid embedded nonwoven irradiated polythene sheet. The prepared GPA was characterized using Fo...

IR analysis of PE fabrics: (a) (b) Fig 2: IR spectra of pristine PE (a), grafted PE (b) Effect of contact time on Cu(II) and Cr(VI) adsorption: Fig 3: Effect of the adsorption time on adsorption capacity of AAc and DADMAC grafted film for heavy metal. (Adsorption experiments-metal ion concentration: 1000ppm ; pH: 4.84 for Cu(II), pH: 1.472 for Cr(V...

Background: As a vital component of the eco-environment and water resource systems, groundwater is important for both the global hydrological cycle and water supply. However, groundwater contamination is one of the most important environmental problems in the present world where metal contamination has major concern due to its high toxicity even at...

Chitosan-PVA Blend Films Modified Using Methyl Methacrylate and Gamma Radiation

Environmental pollution due to heavy metal contamination is a major environmental concern. A fully biodegradable and reusable adsorbent hydrogel for removal of heavy metal ions has been developed. The hydrogel was prepared from acrylic acid and chitosan using an irradiation method. The adsorbent was characterized using Fourier transform infrared an...

Pre-irradiation method was applied to graft acrylonitrile (AN) onto non-woven polyethylene film. Graft yield reached 130% at 70 kGy radiation dose, 60% monomer concentration and 4 h reaction time when H 2 SO 4 was used as an additive. The modification of AN grafted films with hydroxyl amine hydrochloride was done for the preparation of amidoxime ad...

Metals such as nickel (Ni), cadmium (Cd), cobalt (Co), copper (Cu), zinc (Zn), lead (Pb) and potassium (K) are considered essential in trace amounts in water whereas they become harmful or toxic above a certain concentration. Inappropriate treatment of industry effluents e.g. tannery effluents is a major contributor to such water pollution. In the...

Nowadays developing countries around the globe have been undergoing rapid industrialization which is eventually responsible for environmental contamination. For proper assessment of the level of pollution and the proper application of remediation measures, it is imperative to know the pristine geochemistry of the system. In that regard, environment...

Carcinogenic and Non-carcinogenic health risk assessment of some heavy metals and the corrosion analysis of the groundwater of AERE, Savar, Dhaka

It is the report about the primary and secondary coolant of TRIGA Mark-II Research Reactor in the Atomic Energy Research Establishment facility.

Pre-irradiation technique was applied to graft acrylonitrile (AN) onto polyethylene film. The graft yield was optimised with respect to radiation dose, monomer concentration and reaction time. H2SO4 was added to the monomer solution to improve the graft yield. The highest graft yield obtained was 120% at 70 kGy radiation dose, 60% monomer concentra...

The amidoxime adsorbent was prepared by radiation grafting of acrylonitrile on non-woven polyethylene followed by chemical treatment with hydroxyl amine hydrochloride. The prepared amidoxime adsorbent was used for adsorption of methyl orange (MO) from aqueous solution. The effect of different conditions such as contact time, pH and initial metal io...

The exploitation of groundwater has increased greatly in the last two to three decades in Bangladesh, particularly for agriculture purpose, because large parts of the area have little access to the surface water resources. In this study, ground water quality of Tangail sadar upzilla was studied based on different indices. Ten groundwater samples we...

Metals such as nickel (Ni), cadmium (Cd), cobalt (Co), copper (Cu), zinc (Zn), lead (Pb) and potassium (K) are considered essential in trace amounts in water whereas they become harmful or toxic above a certain concentration. Inappropriate treatment of industry effluents e.g. tannery effluents is a major contributor to such water pollution. In the...

In this study, the pH and neutralisable acidity of some commonly consumed tea produced in Bangladesh were investigated. Eight brands of tea including six black tea (Acme premium gold tea (B 1), Ispahani Mirzapore (B 2), Seylon gold (B 3), Tetley premium leaf tea (B 4), Sylhet special tea (B 5), Brooke bond taaza (B 6)) and two green tea (k & k gree...

A novel, regenerative and biodegradable acrylic acid hydrogel having different chitosan composition (w = 0, 0.5, 1.0 and 1.5 %) was constructed using gamma radiation from the Cobalt-60 source. The prepared hydrogel was treated with alkali to enhance its dye adsorption capacity. Uptake capability of the hydrogel at different chitosan percentage, con...

Nowadays quality and suitability of water are of great concern because of various water borne disease and fatal unhealthy impacts on human health. Such concern is one of the reasons of opening of bottled water in Bangladesh. Public belief that bottled water is free from germs and unhealthy entities. As bottled water is marketed by various companies...

In this study, the pH and neutralisable acidity of some commonly consumed tea produced in Bangladesh were investigated. Eight brands of tea including six black tea (Acme premium gold tea (B 1), Ispahani Mirzapore (B 2), Seylon gold (B 3), Tetley premium leaf tea (B 4), Sylhet special tea (B 5), Brooke bond taaza (B 6)) and two green tea (k & k gree...