A5080612023- Adsorption and biosorption for pollutant removal
- Molecular Sensors and Ion Detection
- Nanomaterials for catalytic reactions
- Environmental remediation with nanomaterials
- Luminescence and Fluorescent Materials
- Supramolecular Chemistry and Complexes
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Recycling and Waste Management Techniques
- Analytical chemistry methods development
- Chemical Synthesis and Reactions
- Extraction and Separation Processes
- Multicomponent Synthesis of Heterocycles
- Analytical Chemistry and Sensors
- Catalytic Processes in Materials Science
- Metal-Organic Frameworks: Synthesis and Applications
- Advanced Cellulose Research Studies
- Heavy Metal Exposure and Toxicity
- Essential Oils and Antimicrobial Activity
- Photochromic and Fluorescence Chemistry
- Lanthanide and Transition Metal Complexes
- Porphyrin and Phthalocyanine Chemistry
- Arsenic contamination and mitigation
- Chromium effects and bioremediation
- Inorganic and Organometallic Chemistry
Central University of Punjab
2015-2024
Annamalai University
2024
Akal University
2022
University of Central Punjab
2015-2021
NOAA Chemical Sciences Laboratory
2017
Dr. Reddy's Laboratories (India)
2016
Guru Nanak Dev University
2002-2010
Indian Institute of Technology Indore
2005
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...
New calix[4]arene derivatives (3–5, 7–8) of cone and 1,3-alternate conformations possessing thiourea/urea moieties have been synthesized examined for their anion recognition abilities towards different anions like fluoride, chloride, bromide, iodide, nitrate acetate by 1H NMR UV-Vis spectroscopy. Fitting the changes in absorption spectra using nonlinear regression analysis indicates that all these compounds strong binding affinity chloride ions. The stoichiometry hydrogen bonded complexes is...
Pistachio shell powder (PS) immobilized zerovalent iron and copper (ZVI@PS ZVC@PS) were investigated for the tetracycline (TCH) removal via sulfate radical based advanced oxidation process (S-AOP's). Eco-efficient ZVI@PS ZVC@PS nanocomposite prepared by one-pot redox precipitation method characterized using FTIR, XRD, SEM, BET, TGA/DTA, XPS techniques. The EDX, TGA, AAS analysis techniques confirmed loading of 44% Fe 40% Cu (w/w %) onto pistachio biomass in nanocomposites, respectively. This...
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,...
Synthetic strategies are described to synthesize the calix[4]arene diamine 4 of partial cone (paco) conformation, which on condensation with 9-anthracene carbaldehyde forms chemosensor 5 in paco conformation. The undergoes fluorescence enhancement presence Ni2+ ions.
nZVI (11.8 ± 0.2% w<italic>/</italic>w) immobilized on microcrystalline cellulose (C-nZVI) shows unusual Cr(<sc>vi</sc>) adsorption (562.8 mg g<sup>−1</sup>of nZVI) as a consequence of<italic>in situ</italic>regeneration of upon oxidation to dialdehyde.
Bi(OTf)3 and SiO2-Bi(OTf)3 are found to effectively catalyze the Ferrier rearrangement of tri-O-acetyl glycals with different alcohols providing an effective route 2,3-unsaturated O-glycosides good anomeric selectivity excellent yields after short reaction times.
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,...