Publications 2023

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https://hdl.handle.net/20.500.14170/3705

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Browsing Publications 2023 by Author "Abd Aziz M.H."
  • Publication
    Application of natural zeolite clinoptilolite for the removal of ammonia in wastewater
    ( 2023-01-01)
    Adam M.R.
    ;
    Othman M.H.D.
    ;
    Hubadillah S.K.
    ;
    Abd Aziz M.H.
    ;
    Mohd Riduan Jamalludin
    This work intends the characterization of the natural zeolite clinoptilolite and its capability in removing the ammonia in wastewater. The natural zeolite clinoptilolite was characterized using transmittance electron microscopy (TEM), X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, X-ray fluorescence (XRF) and zeta potential prior to the adsorption process. The results showed that the natural zeolite clinoptilolite possessed the lamellar and needle-like structure thus giving the highest surface area for effective adsorption. The main constituent of the element consisted of natural zeolite clinoptilolite is known to have a high affinity towards ammonia. Additionally, the zeta potential analysis has shown that natural zeolite clinoptilolite is negatively charged in all media pH with the highest negative potential of −30 mV recorded at pH 7 thus, contributing to the highly effective electrostatic interaction with the contaminants’ cations. Consequently, the excellent performance in removing ammonia of up to 82.97 % has revealed that the natural zeolite clinoptilolite has a great potential to be developed as a synergized adsorptive ceramic membrane that is combining the adsorption and the filtration of water simultaneously.
  • Publication
    The Characterization Techniques of Nanomaterials
    ( 2023-01-01)
    Adam M.R.
    ;
    Shafie M.H.
    ;
    Shamsudin M.S.
    ;
    Hubadillah S.K.
    ;
    Mohd Riduan Jamalludin
    ;
    Abd Aziz M.H.
    ;
    Nasir A.M.
    In industries, including water treatment, catalysis, oil refining, sensors, food, energy storage, construction materials, and many others, a great deal of investigation has been undertaken on the application of nanomaterials. Nanoparticles are ultra-small particles with remarkable capabilities; however, when released into the environment, certain nanoparticles and nanomaterials may display detrimental features. Identification and characterization of nanoparticles need additional insight into physicochemical attributes and testing procedures compared to conventional compounds. In addition, regulating considerations for chemicals are generally based on particular toxicological characteristics that might not be exactly equivalent to those of nanomaterials. Nevertheless, regulatory authorities lack an authorized decision framework for nanomaterials that relates the significance of particular physicochemical indicators to toxicological consequences. This chapter addresses several physicochemical parameters and accessible testing techniques for nanomaterials. It provides a summary of the statutory implications and procedures used for evaluating nanomaterials, as well as approaches from the previous research, and evaluates the appropriateness and applicability restrictions of the techniques.
  • Publication
    The emergence of adsorptive membrane treatment for pollutants removal – A mini bibliometric analysis study
    ( 2023-01-01)
    Adam M.R.
    ;
    Hubadillah S.K.
    ;
    Abd Aziz M.H.
    ;
    Mohd Riduan Jamalludin
    Owing to its toxic and cancer-causing consequences on living organisms, water pollution has garnered worldwide attention. As a result of the severe global drinking water shortages caused by the presence of several contaminants in water sources, a variety of treatment methods have been developed. Among accessible removal methods, adsorptive removal by adsorbents including metal–organic frameworks (MOF), metal oxide, carbon-based substances, and zeolite has garnered a great deal of interest because of their abundance of functional groups, relatively large surface area, great chemical and thermal resistance, and excellent adsorption efficiency. Due to their outstanding efficacy and proficiency in the water treatment process, adsorptive membranes are regarded as one of the most advantageous and promising solutions for wastewater reuse technologies. The combination of adsorption and membrane filtration processes, which are characterized by rapid adsorption–desorption volumes, relatively low diffusion impedance, and high flow rates, has garnered considerable interest in recent years. In this study, a bibliometric analysis was undertaken to utilize the Scopus database to find and appreciate the global current status of research on the adsorptive membranes process based on four principal analyses: growth patterns, keyword co-occurrence, topic area, and most cited references. Using the VOSviewer program, a total of 276 Scopus article records published between 1973 and 2021 were extracted and used as input for bibliometric analysis. Since 2016, there have been a large number of articles on adsorptive membranes, and by 2020 there will have been around 40 publications. On the basis of keywords, the principal topics of study in adsorptive membranes may be divided into three clusters: adsorption, membrane studies, and adsorption performance. These bibliometric data provide researchers and business professionals interested in the technology of adsorptive membranes with helpful resources and information on the current research directions of adsorptive membranes.