A5015840705- Analytical Chemistry and Chromatography
- Surfactants and Colloidal Systems
- Crystallization and Solubility Studies
- Recycling and Waste Management Techniques
- X-ray Diffraction in Crystallography
- Arsenic contamination and mitigation
- Microfluidic and Capillary Electrophoresis Applications
- Extraction and Separation Processes
- Chromatography in Natural Products
- Bauxite Residue and Utilization
- Mine drainage and remediation techniques
- Aluminum Alloys Composites Properties
- Minerals Flotation and Separation Techniques
- Heavy Metal Exposure and Toxicity
- Spectroscopy and Quantum Chemical Studies
- Aluminum Alloy Microstructure Properties
- Microplastics and Plastic Pollution
- Liquid Crystal Research Advancements
- Heavy metals in environment
- Material Dynamics and Properties
- Coagulation and Flocculation Studies
- Surface and Thin Film Phenomena
- Electrochemical Analysis and Applications
- Block Copolymer Self-Assembly
- Ionic liquids properties and applications
Institute of Minerals and Materials Technology
2015-2024
Council of Scientific and Industrial Research
2021-2024
Sambalpur University
2009-2021
University of Kalyani
2004-2014
AstraZeneca (United States)
2006-2009
Bidhan Chandra Krishi Viswavidyalaya
2005
Virginia Commonwealth University Medical Center
1996
Widener University
1991
University of Akron
1988-1989
The widespread generation of, ever increasing volumes of and the sustainable management solid wastes are global issues great concern. Due to wide variations in composition associated complexities, significant efforts required for their collection, processing environmentally safe disposal a cost effective manner. An overview is presented this article with specific focus on municipal industrial waste from iron/steelmaking aluminium industries. Key such as its sources, compositions, volumes,...
The present study developed a novel approach for transforming red mud (RM) into soft magnetic materials (SMMs) applications in advanced electrical devices the form of Fe-Si and Fe-Si-Al alloys. A total ten blends were prepared based on two RMs, three iron oxide additives (Fe2O3, black mill scales), alumina carbonaceous reductants range proportions. Carbothermic reduction was carried out vertical Tamman resistance furnace at 1600–1650 °C 30 min an argon atmosphere; synthetic graphite used as...
Groundwater arsenic (As) has affected millions of people globally distributed over 20 countries. In parts West Bengal (India) and Bangladesh alone, 100 million are at risk, but supply As-free water is grossly inadequate. Attempts to remove As by using orthodox medicines have mostly been unsuccessful. A potentized homeopathic remedy, Arsenicum Album-30, was administered a group thereafter the contents in their urine blood were periodically determined. The activities various toxicity marker...
Abstract Time-resolved light scattering studies have been undertaken for elucidating the dynamics of phase separation in aqueous HPC (hydroxypropyl cellulose) liquid-crystalline solutions. The HPC/water system separates during heating and returns to a single upon cooling. diagram thermally induced was subsequently established on basis cloud point measurements. For kinetic studies, T (temperature) jump experiments 10 per cent solutions were undertaken. Phase occurs accordance with spinodal...
The phase diagrams of pseudoternary mixtures Tween80–butanol–kerosene–water system were constructed by visual titration. major three domains, i.e., oil in water, bicontinuous, and water microemulsions demarcated through conductivity measurement. A sharp increase specific conductance increasing content the bicontinuous domain has been ascribed to percolation ions continuum. Temperature induced clouding behavior Winsor IV domains was investigated find out effect composition on temperature....
A study on the emergence and twelve principles of Green chemistry has been thoroughly discussed. Syntheses polymers nanoparticles with aid greener method have elucidated. Phase transfer catalysis is found to play Key role in synthesis various multistep processes one pot cascade reaction. Ionic liquids emerged out as alternative green solvent synthetic replacing traditional organic ones due environmental health concerns. Non ionic surfactants notably their characteristic temperature induced...
Although several techniques have been developed to extract copper from waste printed circuit boards (PCBs), there remain challenges regarding energy consumption, local area contamination and environmental damage. A novel technique has for extracting foils PCBs based on low temperature pyrolysis followed by exfoliation overcome these issues. The standard pretreatment steps of removing electronic components mechanical processing/size-reduction/powdering, etc., were minimized in this study....
Abstract Some monomeric and dimeric surfactants with functional head groups have been synthesized from di- triethanolamine synthons. The treatment of alkyl bromide resulted in simultaneous N-alkylation O-alkylation products. However, diethanolamine, N-alkylated products were obtained, which further used to synthesize various double-tailed gemini surfactants.
Primary and secondary mill scales (MSs) are waste products produced by the surface oxidation of steel during hot (800 to 1200 °C) rolling process in downstream steelmaking. While primary MS is comprised FeO, Fe3O4, Fe2O3 a range proportions, primarily contain red ferric oxide (Fe2O3) (red MS). We report novel route for extracting iron from transforming it into ferro-aluminium alloys using carbothermic reduction presence alumina. The powder was blended with high-purity alumina (Al2O3)...
The aim of this work was to evaluate the reactivity 5-bromomethylfluorescein (5-BMF), a relatively new absorbance and fluorescence derivatization reagent, toward various classes carboxylic acids. model analytes included cefuroxime benzoic acid (aromatic monocarboxylic acid), oleic prostaglandin (unsaturated acids), adipic suberic (aliphatic dicarboxylic palmitic γ-cholesteryloxybutyric (CBA; aliphatic saturated acids). Confirmation conjugate formation performed using TLC, HPLC and/or...
Background: Rapid growth in the generation of electronic waste (e-waste) is a serious issue and consistent efforts are being made worldwide towards sustainable developments material recovery, recycling management. Keywords: E-waste, polymer composites, polypropylene, reinforcing fillers, recycling, mechanical, rheological properties.
The transparent Winsor IV domain in the phase diagram of mixtures emulsifier (Triton X-100 and butanol), oil (kerosene), water is found to be 34% total presence with surfactant:cosurfactant::1:1, dominant. Increase cosurfactant/surfactant ratio inverts become rich. plot conductance microemulsions prepared by substituting brine against content depicts existence three distinct phases like oil-in-water, bicontinuous, water-in-oil microemulsion diagram. contrast micrographs different...
Burr is a undesirable projected material adhered to an edge of job. After drilling operation, exit burr which usually produced beyond the rear surface workpiece, causes serious problem in assembly finished product and maintain its quality. So, reduction essential. A number experiments have been done present work under dry wet environment observe effect on formation different conditions. In this work, bevel 31 degree or back-up support provided, influence formed cutting velocities feeds has...
The aggregation behavior of some novel functional surfactants (synthesized from ethanolamines and alkyl bromides) in aqueous medium on water-air interface has been investigated. Single-tailed derived quaternization triethanol amine tetradecyl hexadecyl bromide form micelles with CMC values around 0.07–0.5 mM while the gemini diethanol amine, dibromoalkanes are found to aggregate range 0.3 0.56 mM. surface pressure-area isotherms water insoluble N-alkyldiethanolamine corresponding double...