A5101613203- Gold and Silver Nanoparticles Synthesis and Applications
- Adsorption and biosorption for pollutant removal
- Plasmonic and Surface Plasmon Research
- Analytical chemistry methods development
- nanoparticles nucleation surface interactions
- Recycling and Waste Management Techniques
- Quantum Dots Synthesis And Properties
- Heavy metals in environment
- Optical Coatings and Gratings
- Nanomaterials for catalytic reactions
- Water Quality and Pollution Assessment
- Iron oxide chemistry and applications
- Nanomaterials and Printing Technologies
- Environmental remediation with nanomaterials
- Recycling and utilization of industrial and municipal waste in materials production
- Hydrological Forecasting Using AI
- Phosphorus and nutrient management
- Groundwater and Watershed Analysis
- Land Use and Ecosystem Services
- Water Quality Monitoring Technologies
- Chromium effects and bioremediation
- Flood Risk Assessment and Management
- Metamaterials and Metasurfaces Applications
- Minerals Flotation and Separation Techniques
Maharaja Sayajirao University of Baroda
2024
Sant Longowal Institute of Engineering and Technology
2019-2023
Central University of Punjab
2017-2023
Surface oxygen functional groups of biochar were tuned by oxidation and reduction for establishing Cr(VI) adsorption mechanism. Oxygen (OFGs) on the surface leached rice straw (LBC4-6) obtained from pyrolysis at 400, 500 600 °C, oxidized to furnish OBC4-6 using modified Hummer's method. Reduced RBC4-6 esterification NaBH4/I2 (OBC4-6). The characterized increase in O/C H/C ratio, respectively, case RBC4-6. LBC4-6, OBC4-6, showed optimum conditions pH 3 dose 0.1 g/L with a good non-linear fit...
Abstract Toxicity characteristic leaching procedure (TCLP) leached biochar is studied for adsorption of methylene blue (MB). Rice straw obtained from slow pyrolysis at 400, 500, and 600 °C, respectively, TCLP to furnish biochar, BL4, BL5, BL6. The BL4–6 have been characterized pH, CHN analysis, ash, zeta potential, surface area morphology functional groups. Batch studies are optimized pH (3–9), adsorbent dose (0.5–4 g L −1 ), initial MB concentration (20–135 mg ). Nonlinear fitting Langmuir,...
Abstract Carboxylate appended biochar BCKA was synthesized by a two‐step functionalization of leached rice straw using ethyl 2‐bromoacetate/K 2 CO 3 /DMF and hydrolysis to furnish the modfied biochar. The modified characterized proximate analysis, CHNS, SS CPMAS 13 C NMR, FESEM, FTIR, XPS, BET, zeta potential. Biochar optimized for pH dose, respectively, as 7 0.2 g/L methylene blue (MB) adsorption with contact time 6 h at 298 K. MB removal up 98% from 20 mg/L dye solution, adsorbent 7,...
Abstract Rice straw and fly ash are the wastes produced in abundance which need immediate attention for their management. In present study, situ pyrolysis of rice presence was carried out resultant composites were studied adsorption methylene blue (MB). Slow is evaluated using thermogravimetric analysis (TGA) Coats–Redfern equation pseudo‐first‐order reaction kinetics, respectively. The activation energy ( E a ) 41.75 kJ/mol lowered to 37.39 ash. Biochar BFA4 1–3 , BFA5 BFA6 prepared at...
In the era of flexible and foldable devices, liquid metals emerge as a champion because they are being at or near room temperature in addition to having high electrical thermal conductivities. Plasmonic resonance occurs when conduction band electrons on metal nanoparticle surface collectively oscillates with same frequency that irradiated light. This plasmonic has attracted great attention large electromagnetic field enhancements regulating wavelength change material, size, shape surrounding...
Research interest is on liquid mercury nanoparticles to show plasmonic response for the purpose of their use in applications. The metal having many applications like high intensity discharge lamps, electrical switches etc presently studied by using Mie theory its LSPR based optical properties with noble Ag form core-shell nanostructures. simultaneous two dipole resonance peaks shown Hg@Ag nanospheres offers unique which can have interesting calculated frequencies are found UV-visible region...
Abstract Lakes play a vital role in regulating water storage, flow of river water, and ultimately maintaining balanced ecosystem. Spatial temporal variations physicochemical parameters Harike Wetland, Ramsar site the northwestern state Punjab, India, were studied. This study was conducted on monthly basis from January to December 2015. The quality studied at ten locations sites 1 10 upstream, central downstream Lake for parameters, including temperature, pH , electrical conductivity,...
Abstract The Harike Wetland situated in Punjab is a Ramsar site and wetland of national importance. present study was undertaken to assess the spatiotemporal dynamics on basis geospatial technology ground‐based studies. Landsat images for years 2002 2014 were acquired from United States Geological Survey classified digitally generate landuse/land cover maps involving four classes (water, grassland (including water hyacinth), agriculture, built‐up (settlement), barren land). total area found...
We here investigate the optical properties of liquid metal nanosphere for its potential use in plasmonic applications. Due to state and reactivity efficiency is limited a narrow range spectra. The core coated with noble (Silver) provide stability broadband properties. discuss theoretically localized surface plasmon resonance (LSPR) peak, absorption scattering efficiencies using Mie theory. influence size shell thickness on spectra core-shell nanoparticle shows shifting peak positions from...
The optical properties of 4 liquid metals Ga, Hg, Cs and Rb are calculated in core-shell bimetallic nanoparticles system over size parameters. localized surface plasmon resonance (LSPR) noble metal for different sizes shell thickness effectively tuned electromagnetic spectrum. In addition, by using Mie Theory is optimized terms structural frequencies these nanostructures observed to be shifting UV-Visible-NIR region with enhanced efficiencies. Two LSPR peaks Hg@Au UV Visible simultaneously....