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Dr. Darbha Venkata Ravi Kumar

Asst. Professor, Chemistry, School of Engineering, Chennai

Qualification: BSc, MSc, Ph.D
vrk_darbha@ch.amrita.edu
Research Interest: 2D and 1D materials, Anisotropic Noble Metal Nanomaterials, environmental and sensor applications, Hybrid materials & Porous materials, Nucleation-Growth Kinetics, One Dimensional and 2d Nanomaterials and Applications of Different Nanomaterials, Size and shape-controlled synthesis of nanomaterials, Synthesis, their characterization and applications

Bio

Dr Venkata Ravi Kumar Darbha currently serves as an Assistant Professor (Senior Grade) of Chemistry in the Department of Science & Humanities, Amrita School of Engineering, Amrita Vishwa Vidyapeetham, Chennai Campus

 

Publications

Journal Article

Year : 2021

Biosurfactant-mediated biosynthesis of CuO nanoparticles and their antimicrobial activity

Cite this Research Publication : Athira, K., Lakshmiprasad Gurrala, and Kumar, D.V.R., Biosurfactant-mediated biosynthesis of CuO nanoparticles and their antimicrobial activity. Appl. Nanosci, 2021, 11 (4) 1447-1457

Publisher : Applied Nanoscience

Year : 2021

Fibrous red phosphorus as a non-metallic photocatalyst for the effective reduction of Cr(VI) under direct sunlight

Cite this Research Publication : Athira, T.K., Roshith, M., Babu, T.S. and Kumar, D.V.R., Fibrous red phosphorus as a non-metallic photocatalyst for the effective reduction of Cr (VI) under direct sunlight. Mater. Lett, 2021, 283,128750.

Publisher : Materials Letters

Year : 2021

Continuous flow solar photocatalytic disinfection of E. coli using red phosphorus immobilized capillaries as optofluidic reactors

Cite this Research Publication : Roshith, M., Pathak, A., Kumar, A.N., Anantharaj, G., Saranyan, V., Ramasubramanian, S., Babu, T.S. and Kumar, D.V.R., Continuous flow solar photocatalytic disinfection of E. coli using red phosphorus immobilized capillaries as optofluidic reactors. Appl. Surf. Sci., 2021, 540, 148398.

Publisher : Applied Surface Science

Year : 2020

Evaluation of photocatalytic activity of commercial red phosphorus towards the disinfection of E. coli and reduction of Cr (VI) under direct sunlight

Cite this Research Publication : Athira, T.K., Roshith, M., Kadrekar, R., Arya, A., Kumar, M.S., Anantharaj, G., Gurrala, L., Saranyan, V., TG, S.B. and Darbha, V.R.K., Evaluation of photocatalytic activity of commercial red phosphorus towards the disinfection of E. coli and reduction of Cr (VI) under direct sunlight. Mater. Res. Express, 2020, 7(10), 104002.

Publisher : Mater. Res. Express

Year : 2020

Aggregation induced, formaldehyde tailored nanowire like networks of Cu and their SERS activity

Cite this Research Publication : Athira, K., Ranjana, M., Bharathi, M.S.S., Reddy, B.N., Babu, T.G. S., Rao, S.V. Kumar, D.V.R., Aggregation induced, formaldehyde tailored nanowire like networks of Cu and their SERS activity Chem. Phys. Letters, 2020, 748, 137390

Publisher : Chem. Phys. Letters

Year : 2019

Sophorolipid induced hydrothermal synthesis of Cu nanowires and its modulating effect on Cu nanostructures

Cite this Research Publication : M. Ranjana, Ramesh, V. V. E., Dr. Satheesh Babu T. G., and Kumar, D. V. Ravi, “Sophorolipid induced hydrothermal synthesis of Cu nanowires and its modulating effect on Cu nanostructures”, Nano-Structures & Nano-Objects, vol. 18, p. 100285, 2019.

Publisher : Nano-Structures and Nano-Objects

Year : 2019

Urchin-like fibrous red phosphorus as an efficient photocatalyst for solar-light-driven disinfection of E. coli

Cite this Research Publication : Roshith, M., Kumar, M. S., Kumar, A. K. N., Ramasubramanian, S., Stanley, J., Babu, T. G. S., Kumar, D. V. R., Urchin-like fibrous red phosphorus as an efficient photocatalyst for solar-light-driven disinfection of E. coli, J. Photochem. Photobiol. Chem, 2019, 384, 112034

Publisher : J. Photochem. Photobiol. Chem

Year : 2019

Hydrazine free synthesis of Cu nanostructures: Exploring vitamin-C as environmental benign reducing agent to synthesize Cu nanowires

Cite this Research Publication : Ranjana, M., Babu, T. G. S., Kumar, D.V.R., Hydrazine free synthesis of Cu nanostructures: Exploring vitamin-C as environmental benign reducing agent to synthesize Cu nanowires, J. Indian. Chem. Soc., 2019,36, 121-125

Publisher : J. Indian. Chem. Soc.,

Year : 2015

Promising wet chemical strategies to synthesize Cu nanowires for emerging electronic applications

Cite this Research Publication : Kumar, D.V.R., Woo, K., Moon, J., Promising wet chemical strategies to synthesize Cu nanowires for emerging electronic applications, Nanoscale, 2015, 7, 17195-17210

Publisher : Nanoscale

Year : 2014

Cu (II) – alkyl amine mediated hydrothermal synthesis of Cu nanowires: Exploring the dual role of alkyl amines

Cite this Research Publication : Kumar, D.V.R., Kim, I., Zhong, Z., Kim, K., Lee D., Moon, J., Cu (II) – alkyl amine mediated hydrothermal synthesis of Cu nanowires: Exploring the dual role of alkyl amines, Phys. Chem. Chem. Phys., 2014,16, 22107-22115

Publisher : Phys. Chem. Chem. Phys.,

Year : 2014

Microfluidic platform for continuous flow synthesis of triangular gold nanoplates

Cite this Research Publication : Kumar, D.V.R., Kulkarni, A. A., Prasad, B.L.V., Microfluidic platform for continuous flow synthesis of triangular gold nanoplates, Colloids. Surf A., 2014, 443,149-155

Publisher : Colloids. Surf A

Year : 2013

Surfactant free synthesis of anisotropic gold nanostructures: Can dicarboxylic acids alone acts as shape directing agents

Cite this Research Publication : Kumar, D.V.R., Kumavat, S.R, Chamundeswari, V.N., Patra, P.P., Kulkarni, A. A, Prasad, B.L.V., Surfactant free synthesis of anisotropic gold nanostructures: Can dicarboxylic acids alone acts as shape directing agents? RSC Adv., 2013, 3, 21641-21647

Publisher : RSC Advances

Year : 2013

Impinging jet micromixer for flow synthesis of nanocrystalline MgO: Role of mixing/impingement zone

Cite this Research Publication : Kumar, D.V.R., Prasad, B.L.V., Kulkarni, A. A., Impinging jet micromixer for flow synthesis of nanocrystalline MgO: Role of mixing/impingement zone, Ind.Eng.Chem.Res., 2013, 52, 17376-17382

Publisher : Industrial & Engineering Chemistry Research

Year : 2013

Synthesis of triangular nanoplates: Role of bromide ion and temperature

Cite this Research Publication : Kumar, D.V.R., Kulkarni, A. A., Prasad, B.L.V., Synthesis of triangular nanoplates: Role of bromide ion and temperature, Colloids. Surf A., 2013,422,181-190

Publisher : Colloids and Surfaces A Physicochemical and Engineering Aspects

Year : 2012

Segmented flow synthesis of Ag nanoparticles in spiral microreactor: Role of continuous and dispersed phase

Cite this Research Publication : Kumar, D.V.R., Prasad, B.L.V., Kulkarni, A.A., Segmented flow synthesis of Ag nanoparticles in spiral microreactor: Role of continuous and dispersed phase. Chem.Eng.J., 2012,192,357-368 (Cover page Article)

Publisher : Chem.Eng.J

Year : 2010

Continuous flow synthesis of functionalized silver nanoparticles using bifunctional biosurfactants

Cite this Research Publication : Kumar, D.V.R., Kasture, M.B., Prabhune, A.A., Ramana, C.V., Prasad, B.L.V., Kulkarni, A.A., Continuous flow synthesis of functionalized silver nanoparticles using bifunctional biosuarfactants, Green Chem., 2010,12,609-615

Publisher : Green Chem.,

Patents

Year : 2014

A sol gel process for synthesis of nanocrystalline oxides

Cite this Research Publication : Kumar, D.V.R., Prasad, B.L.V., Kulkarni, A. A., “A sol gel process for synthesis of nanocrystalline oxides” US patent US10106432B2 (granted)

Publisher : US patent

Academic Qualifications

2013 PhD
National Chemical Laboratory (NCL), Pune-India
2006 MSc Physical Chemistry
Andhra University, Visakhapatnam
2004 BSc
Andhra University, Visakhapatnam

Experience
2016-Present Assistant Professor, Chemistry

School of Engineering, Amrita Vishwa Vidyapeetham, Chennai

2014-2016 Assistant Professor

Annamacharya Institute of Science and Technology (AITS), Rajampet, A.P.

2013-2014 Postdoctoral Fellow

Department of Materials Science and Engineering, Yonsei University, Korea

 

Courses Taught
  • Engineering Chemistry
  • Engineering Chemistry Lab
  • Environmental Science
  • Materials Science for Electrical Engineering
  • Solid State Chemistry
  • Corrosion Science
  • Molecular Spectroscopy
Awards & Achievements
  • Early Career Research Grant-2017 by Science and Engineering Research Board (SERB-DST) India
  • AIRA Award 2020
  • Best Researcher Award by Amrita Vishwa Vidyapeetham
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