780 publications from this institution
No abstract is provided for this article.
Abstract This paper discusses the urgency of proactive approaches to urban resilience in the context of deepening climate change impacts and the rapid pace of urbanization. Due to the rising sea levels, extreme weather events, and other challenges urban areas face today, such as aging underground infrastructure that was not built to withstand stressors such as climate change, pollution from industrial activities, which have been distorted by overdevelopment. The analysis draws attention to the contribution of intelligent grid solutions, climate‐resilient materials, and renewable energy integration in promoting urban resilience. Smart grid implementation alone is expected to reduce electricity use by 12%–15%, while self‐healing concrete (a climate‐resilient material) reduces maintenance costs by 50%–70% while extending the life spans of infrastructure assets. Moreover, this study underscores how digital twin technology combined with artificial intelligence‐led predictive analytics to predict and avert infrastructure failures, while reducing downtime and costs by up to 30%–50%, respectively. The findings highlight the requirement for policymakers, urban planners, engineers, and communities to work together in implementing these mitigation strategies. Key enablers include public‐private partnerships to close the funding gap and hasten technology adoption. This article concludes that investing in research, development, and strategic planning is the key to creating resilient, sustainable urban environments.
No abstract is provided for this article.
In this study, a highly biocompatible adsorptive membrane is developed for haemodialysis application. Silica/α-mangostin hybrid nanoparticle was incorporated into polysulfone (PSf) based membrane to enhance the biocompatibility and the adsorption capacity of the membrane. The PSf based membranes were fabricated via dry-wet phase inversion technique and characterised based on scanning electron microscopy and contact angle measurement. The effects of silica/α-mangostin nanoparticle incorporation into PSf membrane were evaluated in terms of permeability, p-cresol adsorption capacity, urea, and creatinine removal capabilities, bovine serum albumin rejection and p-cresol dynamic adsorption. The biocompatibility assessment was done based on platelet adhesion, antioxidant properties, and complement activation of the membrane. The incorporation of the nanoparticle into PSf based membrane helped to smoothen the surface of the membrane and enhanced its hydrophilicity of the membrane by 12.54%. The presence of silica/α-mangostin in the membrane enhanced the adsorption capacity of the membrane by 20.92% with adsorption capacity of 55.64 mg/g at 500 mg/L initial concentration. The modified PSf membrane had also successfully improved the biocompatibility of the membrane by enhancing the scavenging activity of hydrogen peroxide and nitrogen oxide by 61.8% and 36%, respectively and inhibited the formation of C5a by 27.27%. The developed biocompatible PSf based adsorptive membrane has a good potential to be used for haemodialysis application.
No abstract is provided for this article.
A complete set of triple-layer (anode/electrolyte/cathode) hollow fiber for high temperature micro-tubular solid oxide fuel cell (MT-SOFC) consisting of nickel oxide (NiO) – yttria-stabilized zirconia (YSZ)/YSZ/lanthanum strontium manganite (LSM) – YSZ has been successfully fabricated in this study. A simplified fabrication technique of phase inversion-based co-extrusion/co-sintering has yielded a perfectly bounded sandwich structure with free-delamination and defect layers. The effect of co-sintering temperatures (1300 °C–1450 °C) on the morphologies, elemental distributions, electrolyte gas-tightness, mechanical strength, electrochemical performance and the impedance spectra test are well-inspected. The increase of co-sintering temperature has significant effects on the anode finger-like micro-channels shrinkage where the voids become very sharp-thin structure; and developing a thin gas-tight electrolyte layer. Whereas, rapid co-sintering rate (10 °C min−1) and large particle size of 3–5 μm (micron) of YSZ has hindered the formation of fully dense cathode layer resulting from higher co-sintering temperature. Correspondingly, with only 0.1116 Ωcm2 value of area-specific resistance (ASR), a maximum power density has increased from 0.34 W cm−2 to 0.75 W cm−2 with 1.05 V OCV at 700 °C when the co-sintering temperature ranging from 1400 °C to 1450 °C; which comparable with single-layer counterpart.
No abstract is provided for this article.
This article reviews the various techniques of immobilizing a photocatalyst into and onto the polymer membrane for pollutant removal and as a problem solver in handling suspended photocatalyst issues from the previous literature. A particular focus is given to the preparation of mixed matrix membranes and deposition techniques for photocatalytic degradation in applications for wastewater treatment. Advantages and disadvantages in this application are evaluated. Various operating conditions during the process are presented. About 90 recently published studies (2008-2020) are reviewed. From the literature, it was found that TiO2 is the most favoured photocatalyst that is frequently used in photocatalytic water treatment. Dry-wet co-spinning and sputtering techniques emerged as the promising technique for immobilizing a uniformly distributed photocatalyst within the polymeric membrane, and exhibited excellence pollutant removal. In general, the technical applicability is the key factor in selecting the best photocatalyst immobilizing technique for water treatment. Finally, the scope of various techniques that have been reviewed may provide potential for future photocatalytic study.
No abstract is provided for this article.
The contamination of water sources by oily compounds has been a serious environmental threat for researchers in recent years because oily compounds are emulsified, and their separation is difficult. Photocatalytic degradation of toxic pollutants has been developed as a very prominent and effective wastewater treatment technique. A lot of scientific research is going on all over the world to increase the photocatalytic efficiency of wastewater treatment processes. Using photocatalytic membranes has shown inspiring results in treating oily wastewater. Utilizing the photocatalyst in a membrane is the best solution for the treatment of oily wastewater treatments. In this chapter, an attempt is made to explore the oily wastewater sources, and various treatment methods, focusing on photocatalysis and photocatalytic membranes for oily wastewater treatment, and finally, future perspectives of photocatalytic membranes for oily wastewater treatment methods. The potential of the photocatalytic membranes for oily wastewater is more advantageous and economical compared to other traditional processes.
No abstract is provided for this article.
Natural zeolite is widely used in removing ammonia via adsorption process because of its superior ion-exchange properties. Ceramic particle size affects the adsorptivity of particles toward ammonia. In this study, hollow fiber ceramic membrane (HFCM) was fabricated from natural zeolite via phase inversion. The effect of natural zeolite particle size toward the properties and performance of HFCM was evaluated. The results show that the HFCM with smaller particle sizes exhibited a more compact morphological structure with better mechanical strength. The adsorption performance of HFCM was significantly improved with smaller particle sizes because of longer residence time, as proven by the lower water permeability. A high adsorption performance of 96.67% was achieved for HFCM with the smallest particle size (36 μm). These findings provide a new perspective on the promising properties of the natural zeolite-derived HFCM for ammonia removal.
