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Bhalerao, Anuradha B.,Wagh, Bhiwa G.,Bulakhe, Ravindra N.,Deshmukh, Prashant R.,Shim, Jae-Jin,Lokhande, Chandrakant D. Elsevier Sequoia 2017 Journal of photochemistry and photobiology Chemist Vol. No.
<P><B>Abstract</B></P> <P>Electrosynthesized cadmium indium selenide (CdIn<SUB>2</SUB>Se<SUB>4</SUB>) thin films were (photo) electrochemically analyzed by current–voltage characteristics, photoresponse, speed response, electrochemical impedance study, and capacitance–voltage characteristics. The improved photoconversion efficiency of electrosynthesized CdIn<SUB>2</SUB>Se<SUB>4</SUB> thin film-based photoelectrochemical cell explained with the help of theoretical modeling of energy band diagram and equivalent circuit model of the impedance spectra of the photoelectrochemical cell.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Obtained highest efficiency for the electrodeposited CdIn<SUB>2</SUB>Se<SUB>4</SUB> photoanode in PEC cell. </LI> <LI> Analysis of photoanode performance using electrochemical impedance spectroscopy. </LI> <LI> Theoretical modeling of energy band diagram to analyze performance of PEC cell. </LI> </UL> </P>
Biominerlization and Possible Endosulfan Degradation Pathway Adapted by Aspergillus niger
( Tejomyee S. Bhalerao ) 한국미생물 · 생명공학회 2013 Journal of microbiology and biotechnology Vol.23 No.11
Endosulfan is a chlorinated pesticide; its persistence in the environment and toxic effects on biota are demanding its removal. This study aims at improving the tolerance of the previously isolated fungus Aspergillus niger (A. niger) ARIFCC 1053 to endosulfan. Released chloride, dehalogenase activity, and released proteins were estimated along with analysis of endosulfan degradation and pathway identification. The culture could tolerate 1,000 mg/ml of technical grade endosulfan. Complete disappearance of endosulfan was seen after 168 h of incubation. The degradation study could easily be correlated with increase in released chlorides, dehalogenase activity and protein released. Comparative infrared spectral analysis suggested that the molecule of endosulfan was degraded efficiently by A. niger ARIFCC 1053. Obtained mass ion values by GC-MS suggested a hypothetical pathway during endosulfan degradation by A. niger ARIFCC 1053. All these results provide a basis for the development of bioremediation strategies to remediate the pollutant under study in the environment.
Sunil Arjun Bhalerao,D. Senthilkumar,Narendren Nair 한양대학교 청정에너지연구소 2023 Journal of Ceramic Processing Research Vol.24 No.4
This article incorporates the various diversified challenges faced by industries which results in major incidents. These incidentsimpact the performance and brand image of the organization in the competitive market. To understand the challenges one ofAsia’s biggest ceramic industry has been selected, existing safety culture was analysed and based on that a 3 phase action planwas devised to bring cultural shift. First phase consisted of immediate action plan to bring the current situation under control,the second phase was intermediate action plan to establish the safety management systems and the third phase was a long termaction plan to implement the cultural tools and sustain them. With this a practical approach to resolve safety, health andenvironment (SHE) challenges helped the organization to change the culture which resulted in improvement of majorparameters like training man-hours, reporting & closure of observations, reporting of Near Miss and Audits. It also helpedin reduction of lagging parameters like LTIs, LTIFR and AIFR
Reddy Surakanti Srinivas,Shukla Balmukund,Srihari V.,Bhalerao G. M.,Shekar N. V. Chandra 한국탄소학회 2022 Carbon Letters Vol.32 No.4
Individual multi-walled carbon nanotubes (MWCNTs) were exposed to the electron beam of 200 kV energy and high resolution transmission electron micrographs were recorded at several time intervals. Interestingly, the nucleation of diamond nanoparticles with in the highly disordered MWCNT matrix upon electron-irradiation is observed. This happens without any assistance of high pressures and temperatures. High pressure X-ray diffraction experiments were performed on core/shell structures which suggest that even the closed structures of carbon resist any inward pressure, thereby ruling out the possibility of a hypothetical internal pressure under the electron irradiation conditions. Our experiments suggest that the transformation of graphitic carbon into diamond in the size window of a few nanometers is possible due to the stability of the diamond and a selective dissolution effect of 200 kV electrons on graphite. A mechanism for the same is proposed.
Shelke, Sharad,Salunkhe, Nilesh,Sangale, Sandeep,Bhalerao, Swapnil,Naik, Nilesh,Mhaske, Ganesh,Jadhav, Ranjana,Karale, Bhausaheb Korean Chemical Society 2010 대한화학회지 Vol.54 No.1
일련의 불소화된 티아디아졸 3, 트리아졸 4, 그리고 옥사디아졸 5이 (2-(6-Methyl-2-P-tolyl-lH-imidazo[1,2-a]pyridin-3-yl)핵종을 가지고 있는 티오세미카르바지드로 부터 합성되어진다. 초음파조사 방법 뿐만 아니라 일반적인 방법에 의해 반응이 진행되었다. 모든 생성물들은 IR, 1H NMR, MS로 구조가 결정되었고, 이들 화합물의 항균활성을 스크닝하였다. The synthesis of a series of fluorinated thiadiazoles 3, triazoles 4 and oxadiazoles 5 are synthesized from thiosemicarbazides 2 containing (2-(6-methyl-2-p-tolyl-lH-imidazo[1,2-a]pyridin-3-yl nucleus. These reactions were carried out by conventional method as well as ultra sound irradiation method. All products have been characterized by IR, 1H NMR, MS study and screened for their antimicrobial activity.
Study on high-pressure behaviour of spherical carbon black nanoparticles with core–shell structure
Reddy Surakanti Srinivas,Shukla Balmukund,Chakraborty Soumee,Srihari V.,Bhalerao G. M.,Shekar N. V. Chandra 한국탄소학회 2022 Carbon Letters Vol.32 No.5
We report the behaviour of carbon black (CB) nanoparticles (spherical carbon shells), subjected to external pressure, using diamond anvil cell at synchrotron facility. CB nanoparticles have been synthesized by lamp black method using olive oil as combustion precursor and ferrocene as an organometallic additive. The catalyst-assisted CB has an iron oxide (γ-Fe2O3) core and amorphous carbon shell (i.e. core–shell structure). Our present study suggests that the carbon shells are partially transparent to the applied high pressure, and result in the reduction of effective pressure that gets transferred to the iron oxide core. High-pressure Raman spectroscopy results indicate that the surrounding carbon shells get compressed with pressure and this change is reversible. However, no structural transformation was observed till the highest applied pressure (25 GPa). The Raman spectroscopy results also suggests that the carbon shells are less pressure sensitive as their pressure coefficients (dω/dP) of G-peak were calculated (3.79 cm−1/GPa) to be less than that for other carbon allotropes.