Research Interests
Aqueous Geochemistry, Nano-enabled environmental remediation, Contaminant interaction at mineral-water interface, Nanomaterials synthesis and environmental applications, Geo-nanocomposites for environmental applications, reactive column transport and continuous contaminant filtration, sorption, geochemical speciation modelling, organic degradation, slow-release nanofertilizers designing, Sequestration and recovery of rare-earths, Advanced spectroscopic characterization
BioSketch
Research
Preparation of iron and zinc rich redox-active Dittmarite nanosheets- applications in simultaneous water purification and mineralizatison, and agricultural soil fertilization
2022
N. Khandelwal, N. Singh, E. Tiwari, G.K. Darbha | Indian Patent Office
Journal: Indian Patent- 400319 (Granted).
Oleic-acid functionalized mesoporous silica nanoparticles with a hydroxyapatite core enhanced growth of the hydrocarbon degrader Dietzia maris at oil–water interfaces.
2023
A. Kundu, X. Gao, N. Khandelwal, A. Banerjee, & S. Ghoshal | Elsevier
Journal: Journal of Hazardous Materials Pages: 132653 , Volumes: 464 ,
Varying growth behavior of redox-sensitive nanoparticles on 1:1 and 2:1 clay surfaces: Mechanistic insights on preferential toxic ions removal in mono, co, and multi-metal contaminated waters
2023
N. Khandelwal, N. Singh, E. Tiwari, R. Marsac, D. Schild, T. Schäfer, G. Krishna Darbha | Elsevier
Journal: Chemical Engineering Journal
Achieving strong Pb-Cr complexation in Mg/Al LDHs for ultrafast chromate ions separation and chrome recovery from complex water matrices
2022
N. Khandelwal, N. Singh, E. Tiwari, G.K. Darbha | Elsevier
Journal: Environmental Nanotechnology, Monitoring & Management
Continuous Filtration of Multimetal-Contaminated River Water and Groundwater Using Antioxidants Preserved Redox-Sensitive Nanocomposites: Ultrahigh Reactivity and Self-Sedimentation Possibility
2022
N. Khandelwal, J.K. Rajak, N. Singh, E. Tiwari, Z.A. Ganie, A. Choudhary, G.K. Darbha | ACS
Journal: ACS Es&T Water
Sorption and continuous filtration of heavy metals and radionuclides using novel nano-Farringtonite: Mechanisms delineation using EXAFS
2022
N. Khandelwal, G.K. Darbha | Elsevier
Journal: Chemosphere
Inducing non-stoichiometry in nano-hydroxyapatite for ultra-fast sequestration of uranyl ions in water: mechanism delineation using XAS
2021
S. Rout, N. Khandelwal, A.K. Poswal, V. Pulhani, A.V. Kumar | RSC
Journal: Environmental Science- Nano
Removal of chromate ions from leachate-contaminated groundwater samples of Khan Chandpur, India, using chitin modified iron-enriched hydroxyapatite nanocomposite
2021
J.K. Rajak, N. Khandelwal, M.P. Behera, E. Tiwari, N. Singh, Z.A. Ganie, G.K. Darbha, F.A. Monikh, T. Schafer | Springer
Journal: Environmental Science and Pollution Research
Impact of long-term storage of various redox-sensitive supported nanocomposites on their application in removal of dyes from wastewater: Mechanisms delineation through spectroscopic investigations
2021
N. Khandelwal, E. Tiwari, N. Singh, R. Marsac, T. Schafer, F.A. Monikh, G.K. Darbha | Elsevier
Journal: Journal of Hazardous Materials
Heterogeneously Porous Multiadsorbent Clay-Biochar Surface to Support Redox-Sensitive Nanoparticles: Applications of Novel Clay-Biochar-Nanoscale Zerovalent Iron Nanotrident (C-BC-nZVI) in Continuous Water Filtration
2021
N. Khandelwal, E. Tiwari, N. Singh, G.K. Darbha, | ACS
Journal: ACS Es&T Water
A decade of exploring MXenes as aquatic cleaners: Covering a broad range of contaminants, current challenges and future trends
2021
N. Khandelwal, G.K. Darbha, | Elsevier
Journal: Chemosphere
Combined antioxidant capped and surface supported redox-sensitive nanoparticles for continuous elimination of multi-metallic species
2021
N. Khandelwal, G.K. Darbha | RSC
Journal: Chemical Communications
Biochar-nZVI nanocomposite: optimization of grain size and Fe-0 loading, application and removal mechanism of anionic metal species from soft water, hard water and groundwater
2020
N. Khandelwal, M.P. Behera, J.K. Rajak, G.K. Darbha | Springer
Journal: Clean Technologies and Environmental Policy
Removal and recovery of toxic nanosized Cerium Oxide using eco-friendly Iron Oxide Nanoparticles
2020
K. Gupta, N. Khandelwal, G.K. Darbha | Springer
Journal: Frontiers of Environmental Science & Engineering
Novel synthesis of a clay supported amorphous aluminum nanocomposite and its application in removal of hexavalent chromium from aqueous solutions
2019
N. Khandelwal, N. Singh, E. Tiwari, G.K. Darbha | RSC
Journal: RSC Advances
Nanoplastics interaction with feldspar and weathering originated secondary minerals (kaolinite and gibbsite) in the riverine environment
2022
A. Choudhary, N. Khandelwal, N. Singh, E. Tiwari, Z.A. Ganie, G.K. Darbha | Elsevier
Journal: Science of the Total Environment
Characteristics and spatial distribution of microplastics in the lower Ganga River water and sediment.
2021
N. Singh, A. Mondal, A. Bagri, E. Tiwari, N. Khandelwal, F.A. Monikh, G.K. Darbha | Elsevier
Journal: Marine Pollution Bulletin
Interaction of metal oxide nanoparticles with microplastics: Impact of weathering under riverine conditions
2021
N. Singh, N. Khandelwal, E. Tiwari, N. Naskar, S. Lahiri, J. Lutzenkirchen, G.K. Darbha | Elsevier
Journal: Water Research
Eco-friendly magnetic biochar: An effective trap for nanoplastics of varying surface functionality and size in the aqueous environment
2021
N. Singh, N. Khandelwal, Z.A. Ganie, E. Tiwari, G.K. Darbha | Elsevier
Journal: Chemical Engineering Journal
Metal oxide nanoparticles and polycyclic aromatic hydrocarbons alter nanoplastic's stability and toxicity to zebrafish
2021
N. Singh, J. Bhagat, E. Tiwari, N. Khandelwal, G.K. Darbha, S.K. Shyama | Elsevier
Journal: Journal of Hazardous Materials
Biochar-facilitated remediation of nanoplastic contaminated water: Effect of pyrolysis temperature induced surface modifications
2021
Z.A. Ganie, N. Khandelwal, E. Tiwari, N. Singh, G.K. Darbha, | Elsevier
Journal: Journal of Hazardous Materials
Understanding the stability of nanoplastics in aqueous environments: effect of ionic strength, temperature, dissolved organic matter, clay, and heavy metals
2019
N. Singh, E. Tiwari, N. Khandelwal, G.K. Darbha | RSC
Journal: Environmental Science- Nano
Application of Zn/Al layered double hydroxides for the removal of nanoscale plastic debris from aqueous systems
2020
E. Tiwari, N. Singh, N. Khandelwal, F.A. Monikh, G.K. Darbha | Elsevier
Journal: Journal of Hazardous Materials
Impact of nanoplastic debris on the stability and transport of metal oxide nanoparticles: role of varying soil solution chemistry
2022
E. Tiwari, N. Singh, N. Khandelwal, Z.A. Ganie, A. Choudhary, F.A. Monikh, G.K. Darbha | Elsevier
Journal: Chemosphere
Influence of natural soil colloid’s stability on transport of copper-based nanoparticles in saturated porous media
2022
E. Tiwari, N. Khandelwal, N. Singh, G.K. Darbha | Elsevier
Journal: Environmental Nanotechnology, Monitoring & Management
Effect of clay colloid - CuO nanoparticles interaction on retention of nanoparticles in different types of soils: role of clay fraction and environmental parameters
2022
E. Tiwari, N. Khandelwal, N. Singh, S. Biswas, G.K. Darbha | Elsevier
Journal: Environmental Research
Effect of the irrigation water type and other environmental parameters on CeO2 nanopesticide-clay colloid interactions
2020
E. Tiwari, M. Mondal, N. Singh, N. Khandelwal, F.A. Monikh, G.K. Darbha | RSC
Journal: Environ Sci-Proc Imp
Honors And Awards
