Aqueous Geochemistry and Nanomaterials Lab
Our Findings
Research articles and Patents
BEFORE 2025
A. Choudhary, N. Khandelwal, Z. A. Ganie, G. K. Darbha, "Influence of magnetite and its weathering originated maghemite and hematite minerals on sedimentation and transport of nanoplastics in the aqueous and subsurface environments", Sci Total Environ, 169132 (2023)
A. Kundu, X. Gao, N. Khandelwal, A. Banerjee, & S. Ghoshal, "Oleic-acid functionalized mesoporous silica nanoparticles with a hydroxyapatite core enhanced growth of the hydrocarbon degrader Dietzia maris at oil–water interfaces", Journal of Hazardous Materials, 132653 (2023)
Z. A. Ganie, N. Khandelwal, A. Choudhary, G. K. Darbha, "Clean water production from plastic and heavy metal contaminated waters using redox-sensitive iron nanoparticle-loaded biochar", Environmental Research 235, 116605 (2023)
N. Khandelwal, N. Singh, E. Tiwari, R. Marsac, D. Schild, T. Schäfer, G.K. Darbha, "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", Chem Eng J (2023), 461, 141883
N. Khandelwal, G.K. Darbha, "Sorption and continuous filtration of heavy metals and radionuclides using novel nano-Farringtonite: Mechanisms delineation using EXAFS", Chemosphere (2022)
E. Tiwari, N. Singh, N. Khandelwal, Z.A. Ganie, A. Choudhary, F.A. Monikh, G.K. Darbha, "Impact of nanoplastic debris on the stability and transport of metal oxide nanoparticles: role of varying soil solution chemistry", Chemosphere, (2022) 136091
N. Khandelwal, E. Tiwari, N. Singh, G.K. Darbha, "Preparation of iron and zinc-rich redox-active dittmarite nanosheets- Applications in simultaneous water purification and mineralization, and agricultural soil fertilization", Indian Patent: 400319
Water filtration: Antioxidant capped nanocomposites
2022
N. Khandelwal, J.K. Rajak, N. Singh, E. Tiwari, Z.A. Ganie, A. Choudhary, G.K. Darbha, "Continuous Filtration of Multimetal-Contaminated River Water and Groundwater Using Antioxidants Preserved Redox-Sensitive Nanocomposites: Ultrahigh Reactivity and Self-Sedimentation Possibility", ACS ES&T Water (2022)
Nanoplastics interactions with fresh water minerals
2021
A. Choudhary, N. Khandelwal, N. Singh, E. Tiwari, Z. A. Ganie, G. K. Darbha "Nanoplastics interaction with feldspar and weathering originated secondary minerals (kaolinite and gibbsite) in the riverine environment", Science of the total environment, (2021) 151831
CuO-soil colloids interaction
applicable concentration
2021
E. Tiwari, N. Khandelwal, N. Singh, S. Biswas, G.K. Darbha, "Effect of clay colloid – CuO nanoparticles (NPs) interaction on retention of NPs in different types of soils: Role of clay fraction and environmental parameters", Environmental Research, (2021) 111885
Sugarcane Bagasse biochar for nanoplastics sorption
2021
Z. A. Ganie, N. Khandelwal, E. Tiwari, N. Singh, G. K. Darbha, "Biochar-facilitated remediation of nanoplastic contaminated water: Effect of pyrolysis temperature induced surface modifications., Journal of Hazardous Materials, 417 (2021) 126096
Chromate ions removal from COPR contaminated waters
2021
J. Rajak, N. Khandelwal, M. Behera, E. Tiwari, N. Singh, Z. Ganie, G.K. Darbha, F.A. Monikh, T. Schaefer, "Removal of Chromate ions from leachate-contaminated groundwater samples of Khan Chandpur, India using chitin modified iron-enriched hydroxyapatite nanocomposite, Environmental Science and Pollution Research, 2021
Nanotridents for aqueous sustainability
2021
N. Khandelwal, E. Tiwari, N. Singh, G.K. Darbha, "Heterogeneously Porous Multi-adsorbent Clay–Biochar Surface to Support Redox-Sensitive Nanoparticles: Applications of Novel Clay–Biochar–Nanoscale Zerovalent Iron Nanotrident (C-BC-nZVI) in Continuous Water Filtration, ACS ES&T Water, 2021
Microplastics in river Ganga
2021
Nisha Singh, Arijit Mondal, Amarjeet Bagri, Ekta Tiwari, Nitin Khandelwal, Fazel Abdolahpur Monikh and Gopala Krishna Darbha, Characteristics and spatial distribution of microplastics in the lower Ganga River water and sediment,, Marine Pollution Bulletin, 2021, 163, 111960.
Redox-sensitive composites for dyes removal
2020
Nitin Khandelwal, Ekta Tiwari, Nisha Singh, Remi Marsac, Thorsten Schäfer, Fazel Abdolahpur Monikh, Gopala Krishna Darbha, 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, Journal of Hazardous Materials, 2021, 401, 123375.
Interaction of metal oxide nanoparticles with rough microplastics
2020
Nisha Singh, Nitin Khandelwal, Ekta Tiwari, Nabanita Naskar, Susanta Lahiri, Johannes Luetzenkirchen and Gopala Krishna Darbha, Interaction of metal oxide nanoparticles with microplastics: impact of weathering under riverine conditions, Water Research Journal, 2020, 189, 116622.
Pollutants impacting the toxicity and stability of nanoplastics
2020
Nisha Singh, Jacky Bhagat, Ekta Tiwari, Nitin Khandelwal, Gopala Krishna Darbha and S K Shyama, Metal oxide nanoparticles and polycyclic aromatic hydrocarbons alter nanoplastic's stability and toxicity to zebrafish, Journal of Hazardous Materials, 2021, 124382.
Iron enrichment of Biochar for Cr(VI) removal
2020
N. Khandelwal, M.P. Behera, J.K. Rajak, G.K. Darbha, Biochar–nZVI nanocomposite: optimization of grain size and Fe0 loading, application and removal mechanism of anionic metal species from soft water, hard water and groundwater, Clean Technol Envir, (2020).
