http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Chetan M. Patel,Mousumi Chakraborty,Z.V.P. Murthy 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.4
A systematic study on wet grinding of barium sulfate to produce nanoparticles (<50 nm) was performed in a stirred media mill. The suspension stabilization by pH adjustment and dispersants addition were investigated using zeta potential measurement and the multiple light scattering methods. It was found that particle size reduction requires use of dispersant (sodium salt of polyacrylic acid). The optimum amount of dispersant concentration was determined to be 2% by weight. Further, the influence of pinlength was found to improve the performance. The influence of solids mass fraction, grinding media diameter on pH variation and final size were evaluated.
Different 2D materials based polyetherimide mixed matrix membranes for CO2/N2 separation
Ashwin R. Kamble,Chetan M. Patel,Z.V.P. Murthy 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.81 No.-
Keeping the global warming and climate change issues in mind, various efforts are being taking placeworldwide to separate/capture CO2 fromflue gas mixture in order to reduce its emission in theatmosphere. Therefore, in this work, we improve the gas transport properties of polyetherimide (PEI)membrane for CO2/N2 separation by embedding three differentfillers of two-dimensional materials suchas graphene oxide (GO), molybdenum disulfide (MoS2), and hexagonal boron nitride (h-BN) in its matrix. Additionally, the effect of different weight fraction (0.5,1.5, and 2.5 wt.%) of thesefillers on the CO2/N2 gasseparation performance have been investigated. Membrane morphology, variation in the chemical bondsand membrane surface roughness were observed by employing Field Emission Gun Scanning ElectronMicroscopy (FEG-SEM), Fourier Transform Infrared Spectroscopy (FTIR), and Atomic Force Microscopy(AFM) analysis. Results obtained from the gas permeation showed that PEI embodied with GO exhibitedhigher gas permeation compared to when embodied with h-BN and MoS2. However, the maximumseparation was achieved with MoS2 particles.
Jainesh H. Jhaveri,Chetan M. Patel,Z.V.P. Murthy 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.52 No.-
Poly vinyl chloride (PVC) membranes are known for their low cost as well as good mechanical, thermaland chemical stability. However, the inherent hydrophobicity of the PVC material leads to fouling ofmembrane. Thus, in this paper, we have attempted to use GO-TiO2 nanosheets-blended PVC membranes. GO-TiO2 nanosheets are blended in the casting solution containing PVC and polyvinylpyrrolidone (PVP). Filtration experiments show that blending of GO-TiO2 sheets enhanced the permeateflux while keepingthe rejection of humic acid almost same. The results are supported by characterizations like SEM, EDX,TEM, AFM, XRD and contact angle measurements.