Putrakumar Balla

ORCID: 0000-0001-9013-4595
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Research Areas
  • Catalysis for Biomass Conversion
  • Catalysis and Hydrodesulfurization Studies
  • Catalytic Processes in Materials Science
  • Nanomaterials for catalytic reactions
  • Mesoporous Materials and Catalysis
  • Catalysts for Methane Reforming
  • Catalysis and Oxidation Reactions
  • Supercapacitor Materials and Fabrication
  • Asymmetric Hydrogenation and Catalysis
  • Oxidative Organic Chemistry Reactions
  • Advanced Photocatalysis Techniques
  • Carbon dioxide utilization in catalysis
  • Conducting polymers and applications
  • Biofuel production and bioconversion
  • Copper-based nanomaterials and applications
  • Electrochemical sensors and biosensors
  • Electrocatalysts for Energy Conversion
  • Covalent Organic Framework Applications
  • Polyoxometalates: Synthesis and Applications
  • Layered Double Hydroxides Synthesis and Applications
  • Advanced biosensing and bioanalysis techniques
  • Transition Metal Oxide Nanomaterials
  • biodegradable polymer synthesis and properties
  • Perovskite Materials and Applications
  • Graphene and Nanomaterials Applications

Chungnam National University
2023-2024

Indian Institute of Chemical Technology
2014-2024

Jiangxi University of Science and Technology
2020-2022

Dalian Institute of Chemical Physics
2019-2020

Chinese Academy of Sciences
2019-2020

University of Hyderabad
2019

Carbon dots have stimulated the curiosity of biomedical researchers due to their unique properties, such as less toxicity and high biocompatibility. The synthesis carbon for application is a core area in research. In current research, an eco-friendly hydrothermal technique was employed synthesize fluorescent, plant-derived from Prosopis juliflora leaves extract (PJ-CDs). synthesized PJ-CDs were investigated by physicochemical evaluation instruments fluorescence spectroscopy, SEM, HR-TEM,...

10.1038/s41598-023-36033-3 article EN cc-by Scientific Reports 2023-06-15

The valuable products produced from glycerol transformation have become a research route that attracted considerable benefits owing to their huge volumes in recent decades (as result of biodiesel production as byproduct) well myriad chemical and biological techniques for transforming into high-value compounds, such fuel additives, biofuels, precursors other useful chemicals, etc. Biodiesel has presented another challenge the increase its byproduct (glycerol). This review provides update on...

10.3390/catal12070767 article EN Catalysts 2022-07-11

The nanoparticles surface area, intrinsic sites, exposed microcrystal shapes and lattice planes are some of the key factors in nanocatalysis. influence shape dependent had been profound effect on its catalytic activity. This study is focused synthesis morphologically shape-controlled silver (Ag) supported α-Al2O3 catalysts were performed. correlation Ag NPs with varied facets activities chemoselective reduction nitro compounds was investigated. Engineering different i.e., nanocubes (AgNCs),...

10.1016/j.cej.2022.138507 article EN cc-by Chemical Engineering Journal 2022-08-06

In this study, we designed a heterogeneous graphene oxide (GO) grafted on chitosan decorated with MnO2 nanorods (α-MnO2NRs/GO-Chit) composite materials and its ability to remove the cationic anionic toxic dyes from wastewaters were analysed. The synthesised presented an effective stabilization of active (NRs) GO-Chit surface. detailed characterised by several spectroscopic microscopic techniques such as, FT-IR, P-XRD, SEM, TEM, Raman, TGA, XPS, BET, CO2-TPD UV–Visible analysis. addition,...

10.1016/j.jwpe.2022.102704 article EN cc-by Journal of Water Process Engineering 2022-03-11

ABSTRACT BACKGROUND The utilization of biomass and agricultural wastes for production biofuels is interest as a research topic, since it could provide cheaper process due to the wide availability low cost raw materials. RESULTS In this work vapor phase hydrogenation levulinic acid γ‐valerolactone over copper catalysts supported on ZrO 2 was investigated. were prepared by wet impregnation method with Cu loadings varying from 20 wt% characterized various physico‐chemical techniques. It...

10.1002/jctb.4643 article EN Journal of Chemical Technology & Biotechnology 2015-01-14

Designing and developing non-noble metal-based heterogeneous catalysts have a substantial importance in biomass conversion. Meerwein-Ponndorf-Verley (MPV) reaction is significant pathway for eco-friendly catalytic transfer hydrogenation (CTH) of derived furfural into furfuryl alcohol. In this work, series copper-supported hydroxyapatite (HAp) with different copper loadings (2–20 wt.%) were prepared by facile impregnation method tested the reduction to alcohol using 2-propanol as hydrogen...

10.3390/catal10091045 article EN Catalysts 2020-09-11

Sustainable catalysis is the key for future progress toward biorefinery and bioeconomy. In this work, we designed developed an inexpensive eco-friendly [email protected] catalyst selective hydrogenation of biomass-based platform molecules. A facile synthesized Ni nanoparticles encapsulated in a stabilized carbon support derived from sacrificial agent copolymer-gel was investigated furfural (FA) to tetrahydrofurfuryl alcohol (THFOL) levulinic acid (LA) γ-valeralactone (GVL). The aim study two...

10.1016/j.jece.2021.106530 article EN cc-by Journal of environmental chemical engineering 2021-10-14

2-Methyltetrahydrofuran (MTHF) is a desirable biomass-based platform chemical with excellent potential as an ideal biofuel, green solvent, and raw material for synthesizing downstream chemicals. In this work, series of copper nanoparticles encapsulated on SiO2 were prepared by the wet impregnation method evaluated efficient non-noble metal catalysts vapour-phase hydrogenation γ-valerolactone (GVL) to MTHF in fixed-bed reactor under mild reaction conditions. The obtained catalyst properties...

10.3390/nano12193414 article EN cc-by Nanomaterials 2022-09-29

A direct alkaline hydrothermal method was used to synthesize mono- and bimetallic Ni Cu on mesoporous silica (m-SiO2) as catalysts for the hydrogenation of furfural (FAL) cyclopentanone (CPO). The were characterized by XRD, FTIR, H2-TPR, SEM, TEM, HR-TEM, XPS, ICP, BET, CHN analysis. results demonstrate that addition metal improved reducibility revealed Ni-Cu alloy formation over m-SiO2. Furthermore, XPS FTIR reveal silanol groups catalyst surface play an important role in ring rearrangement...

10.3390/catal13030580 article EN Catalysts 2023-03-13

Vapor phase benzyl alcohol (BnOH) oxidation reaction is investigated over a pre–synthesised morphologically designed shape controlled spherical silver nanoparticles (AgNPs) decorated on manganese oxide nanorods (α–MnO2NRs) in the presence of air. The combination and α–MnO2NRs interface enabled increased oxygen vacancies (Ov) exhibited strong metal–support interactions (SMSI) surface activation. effect Ag loadings significant optimal 1 wt% loaded catalyst (1Ag/MnO2NRs) showed excellent...

10.1016/j.cej.2023.144007 article EN cc-by Chemical Engineering Journal 2023-06-08

Pre-synthesized morphologically tailored size and shape selective silver nanoparticles (AgNPs) decorated on bismuth molybdate support (AgNPs/α–Bi2Mo3O12) using simple wet impregnation method was employed. The prepared AgNPs/α-Bi2Mo3O12 nanocatalysts were tested in the partial oxidation of propylene to acrolein reaction. introduction well-defined AgNPs α–Bi2Mo3O12 is greatly promoted strong metal interactions (SMSI), creation oxygen vacancies (Ov) high adsorption binding energy (calculated by...

10.1016/j.cej.2024.150418 article EN cc-by Chemical Engineering Journal 2024-03-16

The interaction between active metal centers and supports can be tailored by the judicious combination of morphologically specific nanoparticles oxide such that efficacy catalysts could enhanced for practical suitability. Herein, structurally engineered spherical silver (AgNPs) were decorated on manganese nanorods (MnO2NRs), their catalytic toward complete oxidation propane has been explored. It was observed 1 wt % Ag-loaded (1Ag/MnO2NRs) exhibited highest activity, where temperatures...

10.1021/acsanm.3c01952 article EN ACS Applied Nano Materials 2023-07-03

WO<sub>x</sub>/TiP shows superior activity and selectivity during glycerol dehydration to acrolein owing the availability of suitable acidic sites, appropriate acid density a wide porosity.

10.1039/c9nj04484a article EN New Journal of Chemistry 2019-01-01
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