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Browsing by Author "Kumar, Neeraj"

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Achieving Controllable MoS2 Nanostructures with Increased Interlayer Spacing for Efficient Removal of Pb(II) from Aquatic Systems

Author: Kumar, Neeraj ; Fosso-Kankeu, E ; Ray, Suprakas S Date: May 2019 The development of new synthesis approaches for MoS2 is necessary to achieve controlled morphologies and unique physicochemical properties that can improve its efficiency in particular applications. Herein, a facile one-step hydrothermal route ... Read more
Apoptotic efficacy of multifaceted biosynthesized silver nanoparticles on human adenocarcinoma cells

Author: George, BPA ; Kumar, Neeraj ; Abrahamse, H ; Ray, Suprakas S Date: Sep 2018 Metallic nanoparticles (NPs) especially silver (Ag) NPs have shown immense potential in medical applications due to their distinctive physio-chemical and biological properties. This article reports the conjugation of Ag NPs with Rubus ... Read more
Bionanocomposite hydrogel for the adsorption of dye and reusability of generated waste for the photodegradation of Ciprofloxacin: A demonstration of the circularity concept for water purification

Author: Kumar, Neeraj ; Mittal, H ; Alhassan, SM ; Ray, Suprakas S Date: 2018 Adsorption has emerged as a simple and economical approach to water decontamination; however, it creates large amounts of secondary toxic waste following the removal of the effluents from the water. The present investigation introduces an ... Read more
Carbon nanomaterial-based adsorbents for water purification: Fundamentals and applications

Author: Ray, Suprakas S ; Gusain, Rashi ; Kumar, Neeraj Date: Jun 2020 The deterioration of water quality and unavailability of drinkable water are pressing challenges worldwide. The removal of toxic organic and inorganic pollutants from water is vital for a clean environment, as a response to water scarcity. ... Read more
Efficient and cost-effective photoelectrochemical degradation of dyes in wastewater over an exfoliated graphite-MoO3 nanocomposite electrode

Author: Ama, Monday O ; Kumar, Neeraj ; Adams, FV ; Sinha Ray, Suprakas Date: Sep 2018 Herein, we prepared hexagonal MoO3 (h-MoO3) nanorods by homogenous co-precipitation and utilized them to fabricate a composite h-MoO3-exfoliated graphite (EG) electrode. The above composite was characterized by scanning electron microscopy, ... Read more
Efficient removal of Pb(II) and Cd(II) from Industrial Mine Water by a hierarchical MoS2/SH-MWCNT nanocomposite

Author: Gusain, Rashi ; Kumar, Neeraj ; Fosso-Kankeu, E ; Ray, Suprakas S Date: Aug 2019 In this study, we investigate the adsorption capability of molybdenum sulfide (MoS2)/thiol-functionalized multiwalled carbon nanotube (SH-MWCNT) nanocomposite for rapid and efficient removal of heavy metals [Pb(II) and Cd(II)] from industrial ... Read more
Efficient removal of rhodamine 6G dye from aqueous solution using nickel sulphide incorporated polyacrylamide grafted gum karaya bionanocomposite hydrogel

Author: Kumar, Neeraj ; Mittal, Hemmant ; Parashar, V ; Ray, Suprakas S ; Ngila, JC Date: Feb 2016 This research paper reports the synthesis and usage of the polyacrylamide (PAAm) grafted gum karaya (Gk) and nickel sulphide nanoparticle based hydrogel to effectively remove rhodamine 6G dye (R6G) from aqueous solution. Initially, the hydrogel ... Read more c b
Enhanced thermo-mechanical stiffness, thermal stability, and fire retardant performance of surface-modified 2D MoS2 nanosheet-reinforced polyurethane composites

Author: Malkappa, Kuruma ; Ray, Suprakas S ; Kumar, Neeraj Date: Jan 2019 This article reports new‐generation 2D‐MoS2 nanosheet‐containing polyurethane (PU) composite materials with improved thermo‐mechanical stiffness, thermal stability, and fire retardation properties. The surface of 2D‐MoS2 nanosheets is modified ... Read more
Equilibrium, kinetic, and thermodynamic studies of lead ion adsorption from mine wastewater onto MoS2-clinoptilolite composite

Author: Pandey, S ; Fosso-Kankeu, E ; Spiro, MJ ; Waanders, F ; Kumar, Neeraj ; Ray, Suprakas S ; Kim, J ; Kang, M Date: Dec 2020 This work explored the potential of clinoptilolite, molybdenum sulphide (MoS2), and MoS2-clinoptilolite composite in lead (Pb) removal from aqueous medium and industrial mining wastewater. MoS2-clinoptilolite composite was successfully prepared ... Read more
Ionic liquid-assisted synthesis of Ag/Ag2Te nanocrystals via a hydrothermal route for enhanced photocatalytic performance

Author: Kumar, Neeraj ; Ray, Suprakas S ; Ngila, JC Date: Oct 2018 Herein, Ag(subscript2)Te and Ag/Ag(subscript2)Te nanocrystals were synthesised via a hydrothermal method using diphenyl ditelluride as a new tellurium source and 1-butyl-3-methyl imidazolium acetate (BMIA IL) as a structure controlling and ... Read more
Photocatalytic activity of Gd2O2CO3·ZnO·CuO nanocomposite used for the degradation of phenanthrene

Author: Mukwevho, N ; Fosso-Kankeu, E ; Waanders, F ; Kumar, Neeraj ; Ray, Suprakas S ; Mbianda, XY Date: Jan 2019 Multimetal oxides nanocomposite photocatalysts based on Gd2O2CO3·ZnO·CuO were prepared by a co-precipitation method and carefully characterized using a range of analytical techniques. More specifically, analysis by X-ray diffraction and ... Read more
Polypyrrole-promoted rGO-MoS2 nanocomposites for enhanced photocatalytic conversion of CO2 and H2O to CO, CH4, and H2 products

Author: Kumar, Neeraj ; Kumar, S ; Gusain, Rashi ; Manyala, N ; Eslava, N ; Ray, Suprakas S Date: Sep 2020 Advanced functionalized nanomaterials are indispensable for the efficient production of solar fuels via the reduction of CO(sub2) under solar light. This approach simultaneously addresses two major issues: (a) global warming due to anthropogenic ... Read more
Recent advances in carbon nanomaterial-based adsorbents for water purification

Author: Gusain, Rashi ; Kumar, Neeraj ; Ray, Suprakas S Date: Feb 2020 Deterioration of water quality and the unavailability of drinkable water are pressing challenges worldwide. Removal of toxic organic and inorganic pollutants from water is indispensable for a clean environment, as a response to water scarcity, ... Read more
Removal of naphthalene from simulated wastewater through adsorption-photodegradation by ZnO/Ag/GO nanocomposite

Author: Mukwevho, N ; Gusain, Rashi ; Fosso-Kankeua, E ; Kumar, Neeraj ; Waanders, F ; Ray, Suprakas S Date: Jan 2020 In this study, a ZnO/Ag/GO nanocomposite was synthesised and used as photocatalyst for effective photodegradation of naphthalene from simulated wastewater under visible light. Chemical and morphological characterisation were successfully done ... Read more
Synthesis and functionalization of nanomaterials

Author: Kumar, Neeraj ; Sinha Ray, Suprakash Date: Feb 2018 “Nanomaterial” and “nanotechnology” have become well-known terms, not only among scientists, engineers, fashion designers, and architects, but also the general public. Owing to their extraordinary and unexpected behavior, nanomaterials have ... Read more
Visible light-excitable ZnO/2D graphitic-C3N4 heterostructure for the photodegradation of naphthalene

Author: Mukwevho, N ; Kumar, Neeraj ; Fosso-Kankeu, E ; Waanders, F ; Bunt, J ; Ray, Suprakas S Date: Sep 2019 In this study, ZnO/g-C(sub3)N(sub4) heterostructure was synthesized with enhanced photodegradation potential for polycyclic aromatic hydrocarbons (PAHs) (viz. naphthalene) in water using visible light. The as-prepared catalysts were characterized ... Read more

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