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Articles by M.S. Shaharun
Total Records ( 2 ) for M.S. Shaharun
  S.B. Daffalla , H. Mukhtar and M.S. Shaharun
  Over the last three decades, there has been increasing global concern over the public health impacts attributed to environmental pollution. Among various water pollutants, phenol and its derivatives are the most toxic because they are carcinogenic in nature. The objective of this study was to develop novel, low-cost adsorbent from rice husk modified by thermal and chemical treatments for the effective removal of phenol from industrial wastewater. The physical and surface properties of the developed adsorbents were characterized using FTIR, SEM and FSEM. The results indicated that the pretreatment of rice husk has caused the functional groups (-OH, Si-OH, C-H, C=O, C=C, CH2, CH3, CO, Si-O-Si, C-C, Si-H, -O-CH3) on the surface of adsorbent to change and the specific surface area to increase. The adsorption capacity was greatly influenced by surface group changes. The effects of the presence of the surface functional group on adsorption of phenol were analyzed by observing the shifting of the FTIR peaks after the adsorption experiment. Analysis of FTIR shows that the -OH, C-H,-CO, C-OH, Si-OH and -Si-H groups contribute to the adsorption of phenol onto the surface of adsorbent.
  S. Shukrullah , N.M. Mohamed , M.S. Shaharun and M.Y. Naz
  In recent years, the carbon nanotubes (CNTs) have remained the most discussed materials due to their distinctive characteristics and potential industrial applications. These materials have brought revolutionary changes in the field of medical treatment, electronic devices, communication, sensors, energy storage, etc. Among the various practiced techniques, the Fluidized Bed Catalytic Chemical Vapor Deposition (FBCCVD) is the most pronounced technique for mass production of carbon nanotubes. Although, FBCCVD is a scalable and relatively low cost technique for bulk production of CNTs, still some of the dominant process parameters impacting the CNTs nucleation and growth should be more understood. Better control over these parameters would help the researchers to improve CNTs morphology, to optimize productivity and to scale up the process parameters. Therefore, this study includes a general overview of FBCCVD and other key parameters effecting CNTs formation. The main objective of the presented literature review is to discuss and elaborate the scientific phenomena behind this process and to sketch a future roadmap.
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