P
Praveen Kumar
Researcher at Indian Association for the Cultivation of Science
Publications - 91
Citations - 1623
Praveen Kumar is an academic researcher from Indian Association for the Cultivation of Science. The author has contributed to research in topics: X-ray photoelectron spectroscopy & Water splitting. The author has an hindex of 20, co-authored 88 publications receiving 1022 citations. Previous affiliations of Praveen Kumar include National Physical Laboratory & Post Graduate Institute of Medical Education and Research.
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Recent advances in carbon quantum dot-based sensing of heavy metals in water
TL;DR: In this article, the role of carbon quantum dots (CQDs) as sensors for heavy metals in water is discussed and a comprehensive overview of CQDs' role in water sensing is provided.
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Current and future perspectives of carbon and graphene quantum dots: From synthesis to strategy for building optoelectronic and energy devices
TL;DR: In this article, the role of edge effects and attached functional groups on flexible optoelectronic devices for energy harvesting applications is discussed, and the underlying challenges and future prospects for CQD/GQD-based devices with respect to their performance, sustainability, durability, and costeffectiveness to efficiently realize their industrial scale-up.
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Green synthesis of glowing carbon dots from Carica papaya waste pulp and their application as a label-freechemo probe for chromium detection in water
TL;DR: In this paper, a green synthesis of blue luminescent C-dots (CDs) using papaya waste (Carica papaya) as a precursor is presented. But the as-synthesized CDS exhibit a quantum yield of 23.7% and are of size
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Selective electrochemical sensing for arsenite using rGO/Fe3O4 nanocomposites.
Pooja Devi,Pooja Devi,Chhavi Sharma,Praveen Kumar,Mahesh Kumar,Baban K. S. Bansod,Manoj K. Nayak,Madan Lal Singla +7 more
TL;DR: In this paper, the authors reported rGO/Fe3O4 nanocomposites (NCs) free from noble metals, synthesized by facile one-step chemical reduction method, for electrochemical detection of arsenite in water by square wave anodic stripping Voltammetry (SWASV).
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Waste derivitized blue luminescent carbon quantum dots for selenite sensing in water.
TL;DR: An environmental friendly, facile, and completely green synthetic method for producing carbon quantum dots from whey, a major dairy waste, and the functionalized GCQDs probe is shown to detect selenite with high sensitivity in 10-1000ppb detection range.