Universiti Teknologi Malaysia

About: Universiti Teknologi Malaysia is a education organization based out in Johor Bahru, Malaysia. It is known for research contribution in the topics: Membrane & Control theory. The organization has 21644 authors who have published 39500 publications receiving 520635 citations.

Fabrication, Functionalization, and Application of Carbon Nanotube-Reinforced Polymer Composite: An Overview.

Abstract: A novel class of carbon nanotube (CNT)-based nanomaterials has been surging since 1991 due to their noticeable mechanical and electrical properties, as well as their good electron transport properties. This is evidence that the development of CNT-reinforced polymer composites could contribute in expanding many areas of use, from energy-related devices to structural components. As a promising material with a wide range of applications, their poor solubility in aqueous and organic solvents has hindered the utilizations of CNTs. The current state of research in CNTs—both single-wall carbon nanotubes (SWCNT) and multiwalled carbon nanotube (MWCNT)-reinforced polymer composites—was reviewed in the context of the presently employed covalent and non-covalent functionalization. As such, this overview intends to provide a critical assessment of a surging class of composite materials and unveil the successful development associated with CNT-incorporated polymer composites. The mechanisms related to the mechanical, thermal, and electrical performance of CNT-reinforced polymer composites is also discussed. It is vital to understand how the addition of CNTs in a polymer composite alters the microstructure at the micro- and nano-scale, as well as how these modifications influence overall structural behavior, not only in its as fabricated form but also its functionalization techniques. The technological superiority gained with CNT addition to polymer composites may be advantageous, but scientific values are here to be critically explored for reliable, sustainable, and structural reliability in different industrial needs.

A review of remote sensing applications for oil palm studies

Abstract: Oil palm becomes an increasingly important source of vegetable oil for its production exceeds soybean, sunflower, and rapeseed. The growth of the oil palm industry causes degradation to the environment, especially when the expansion of plantations goes uncontrolled. Remote sensing is a useful tool to monitor the development of oil palm plantations. In order to promote the use of remote sensing in the oil palm industry to support their drive for sustainability, this paper provides an understanding toward the use of remote sensing and its applications to oil palm plantation monitoring. In addition, the existing knowledge gaps are identified and recommendations for further research are given.

Laccase immobilization on cellulose nanofiber: The catalytic efficiency and recyclic application for simulated dye effluent treatment

Abstract: In this study, laccase immobilized on cellulose nanofiber was utilized for reactive dyes and simulated dye effluent (SDE) decoloration. The thick coating on the fiber in the scanning electron microscopy (SEM) analysis and the N H stretching vibration between 1560 and 1640 cm−1 in the Fourier-transform infrared spectroscopy (FT-IR) spectra confirmed the laccase immobilization on nanofiber. The relative activity of the immobilized laccase was found to be 88%. The thermal and pH stability of the immobilized laccase was considerably improved. The best mediator for all of the reactive dyes that were tested and the SDE decoloration is 1-hydroxybenzotriazole (HBT). Response surface methodology (RSM) was used to improve the SDE decoloration. The half-life of the immobilized laccase was retained for up to 8 cycles and had greater than 85% SDE decoloration for up to 5 cycles. Therefore, laccase immobilized on cellulose nanofiber may be a good candidate for the textile effluent decoloration.