Kalyani Ghule
National Tsing Hua University
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Featured researches published by Kalyani Ghule.
Green Chemistry | 2006
Kalyani Ghule; Anil Ghule; Bo-Jung Chen; Yong-Chien Ling
Coating of ZnO nanoparticles on paper surface has potential technological applications. With this motivation, a simple approach of ultrasound assisted coating of paper with ZnO nanoparticles (∼20 nm) without the aid of binder is reported for the first time in this work. The ultrasound assisted coating approach concurs with “green” chemistry as it is simple and environmentally friendly. Scanning electron microscope is used to characterize the surface morphology showing ZnO nanoparticles bound to cellulose fibers. Further characterization of coated surface is performed by attenuated total reflectance-Fourier transform infrared, X-ray diffraction, and time-of-flight secondary ion mass spectrometry in positive ion detection mode along with its imaging capability. The effect of ultrasound irradiation time on ZnO nanoparticles loading is estimated by thermogravimetric analysis. A plausible coating mechanism is proposed. The ZnO nanoparticles coated paper is found to possess antibacterial activity against Escherichia coli 11634.
RSC Advances | 2015
Ketan P. Gattu; Kalyani Ghule; Anil A. Kashale; V.B. Patil; D.M. Phase; Rajaram S. Mane; Sung-Hwan Han; Ramphal Sharma; Anil Ghule
Considering the potential applications of transition metal doped nanostructured materials and the advantages of novel, cost-effective and environmentally friendly biosynthesis methods, Ni-doped SnO2 nanomaterials have been synthesized using remnant water (ideally kitchen waste) collected from soaked Bengal gram bean (Cicer arietinum L.) extract. The structural and optical properties of the Ni-doped SnO2 nanostructures were studied using various techniques such as UV/visible spectroscopy, FT-IR spectroscopy, X-ray powder diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and transmission electron microscopy (TEM). The SEM and TEM images and the XRD results of the biosynthesized Ni–SnO2 nanoparticles reveal a uniform size distribution with an average size of 6 nm and confirmed the formation of a rutile structure with the space group (P42/mnm) and the nanocrystalline nature of the products with a spherical morphology. Subsequently, Ni-doped biosynthesized SnO2 nanoparticles were coated onto a glass substrate using the doctor blade method to form thin films. The NO2 sensing properties of the materials have been studied in comparison with other gases. The reported gas sensing results are promising, which suggest that the Ni-dopant is a promising noble metal additive to fabricate low cost SnO2 based sensors.
Current Nanoscience | 2015
Ketan P. Gattu; Kalyani Ghule; Anil A. Kashale; Rajaram S. Mane; Ramphal Sharma; D.M. Phase; Sung-Hwan Han; Anil Ghule
The authors are thankful to UGC-DAE Consortium for Scientific Research, Indore (Project Ref. No.: CSR-I/CRS-48/48) and UGC, New Delhi (F. No. 41-370/2012 (SR)) for the financial support. We are also thankful to the Department of Nanotechnology, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad for providing the laboratory facility.
DAE SOLID STATE PHYSICS SYMPOSIUM 2016 | 2017
Ketan P. Gattu; Kalyani Ghule; Nanasaheb P. Huse; Avinash S. Dive; Sagar B. Bagul; Renuka V. Digraskar; Ramphal Sharma; Anil Ghule
Herein Fe doped SnO2 nanoparticles have been synthesized using simple, cost effective and ecofriendly biosynthesis method, in which remnant water (ideally kitchen waste) collected from soaked Bengal gram beans (Cicer arietinum L.) was used. This extract consists of different bio-molecules which acted as complexing as well as capping agents for synthesis of Fe-doped SnO2 nanoparticles. The X-ray powder diffraction (XRD) and Field-emission scanning electron microscopy (FE-SEM) revealed uniform size distribution with the average size of 6 nm and confirmed the formation of rutile structure with space group (P42/mnm) and nanocrystalline nature of the products with spherical morphology. Further, the gas sensing properties of the materials have been studied in comparison with other gases. The reported gas sensing results are promising, which suggest that the Fe-dopant is a promising noble metal additives to fabricate low cost SnO2 based sensor.
Journal of Mass Spectrometry | 2004
Anil Ghule; Kalyani Ghule; Chin-Yuan Chen; Wen-Yin Chen; Shin-Hwa Tzing; Hua Chang; Yong-Chien Ling
Chemical Physics Letters | 2003
Anil Ghule; Bertrand Lo; Shin-Hwa Tzing; Kalyani Ghule; Hua Chang; Yong-Chien Ling
Journal of Nanoscience and Nanotechnology | 2006
Kalyani Ghule; Anil Ghule; Jen-Yu Liu; Yong-Chien Ling
Chemical Physics Letters | 2004
Anil Ghule; Kalyani Ghule; Shin-Hwa Tzing; Jia-Yaw Chang; Hua Chang; Yong-Chien Ling
Materials Chemistry and Physics | 2010
Anil Ghule; Kalyani Ghule; Tushar Harishchandra Punde; Jen-Yu Liu; Shin-Hwa Tzing; Jia-Yaw Chang; Hua Chang; Yong-Chien Ling
Composites Part B-engineering | 2016
Anil A. Kashale; Ketan P. Gattu; Kalyani Ghule; Vijay H. Ingole; Swapnali Dhanayat; Ramphal Sharma; Jia-Yaw Chang; Anil Ghule