Faculty Publications

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    Experimental and molecular modeling of interaction of carbon quantum dots with glucose
    (Springer Verlag service@springer.de, 2019) Sadrolhosseini, A.R.; Abdul Rashid, S.A.; Jamaludin, N.; Isloor, A.M.
    Carbon Quantum Dots are a 0D dimension nanomaterial and they have promising properties, such as fluorescence. In this study, the carbon quantum dots were derived from biochar. The prepared sample was characterized using a UV–visible spectrometer, Fourier transform infrared spectroscopy, and fluorescence spectroscopy, and the morphology was investigated using a high-resolution transmission electron microscopy image. The linear and nonlinear refractive indies were obtained from a UV–visible spectrum and a Z-scan signal. The carbon quantum dots were combined with glucose, and then the variation between the fluorescence spectrum and response time were investigated. The interaction of the carbon quantum dots with the glucose was simulated using density functional theory for finding the stable molecular in the lower energy. Consequently, the carbon quantum dots interacted with the glucose in van der Waals bonding. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.
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    Microwave-assisted pyrolysis of food waste: optimization of fixed carbon content using response surface methodology
    (Taylor and Francis Ltd., 2021) Kadlimatti, H.M.; Raj Mohan, B.; Saidutta, M.B.
    Pyrolysis of food waste using microwave irradiation was carried out in this study to produce quality biochar for heating applications. Optimum conditions for microwave-assisted pyrolysis of food waste particles were determined using response surface methodology (RSM). Combined effects of the operating variables, namely pyrolysis temperature (°C), residence time (min) and nitrogen flow rate (mL min?1), were analyzed by conducting 20 experiments. Microwave-assisted pyrolysis results were correlated by applying RSM with the regressions coefficients of 92.90% for biochar and 90.305% for fixed carbon content. Microwave power of 450 W yielded 60.03 wt. % of biochar with a fixed carbon content of 48.71 wt. % under the optimum pyrolysis conditions of 400 °C temperature, 30 min residence time and 50 mL min?1 of nitrogen flow rate. The higher heating value of the biochar was 33.35 MJ kg?1. © 2019 Informa UK Limited, trading as Taylor & Francis Group.