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Ahmed Ammar,Azam Ali,Wang Yanen,Zhang Zutao,Li Ning,Jia Changyuan,Mushtaq Ray Tahir,Rehman Mudassar,Gueye Thierno,Shahid Muhammad Bilal,Basit Ali Wajid 나노기술연구협의회 2021 Nano Convergence Vol.8 No.37
Additively manufactured nano-MEH systems are widely used to harvest energy from renewable and sustainable energy sources such as wind, ocean, sunlight, raindrops, and ambient vibrations. A comprehensive study focusing on in-depth technology evolution, applications, problems, and future trends of specifically 3D printed nano-MEH systems with an energy point of view is rarely conducted. Therefore, this paper looks into the state-of-the-art technologies, energy harvesting sources/methods, performance, implementations, emerging applications, potential challenges, and future perspectives of additively manufactured nano-mechanical energy harvesting (3DP-NMEH) systems. The prevailing challenges concerning renewable energy harvesting capacities, optimal energy scavenging, power management, material functionalization, sustainable prototyping strategies, new materials, commercialization, and hybridization are discussed. A novel solution is proposed for renewable energy generation and medicinal purposes based on the sustainable utilization of recyclable municipal and medical waste generated during the COVID-19 pandemic. Finally, recommendations for future research are presented concerning the cutting-edge issues hurdling the optimal exploitation of renewable energy resources through NMEHs. China and the USA are the most significant leading forces in enhancing 3DP-NMEH technology, with more than 75% contributions collectively. The reported output energy capacities of additively manufactured nano-MEH systems were 0.5–32 mW, 0.0002–45.6 mW, and 0.3–4.67 mW for electromagnetic, piezoelectric, and triboelectric nanogenerators, respectively. The optimal strategies and techniques to enhance these energy capacities are compiled in this paper. Graphical Abstract
Yanen Wang,Jakiya Sultana,Ammar Ahmed,Ali Azam,Ray Tahir Mushtaq,Mudassar Rehman 한국섬유공학회 2022 Fibers and polymers Vol.23 No.12
The development of bamboo fibre (BF) reinforced poly lactic acid (PLA) BF-PLA composites has been growing fast among the natural fibre reinforced composites (NFRCs) over the past few years. BF-PLA composites have gained significant interest as sustainable alternative materials for the engineering and industrial sectors. BF-PLA composites are getting popular due to their remarkable features such as eco-friendliness, biodegradability, recyclability, low cost, low specific weight, and improved mechanical and thermal properties. In this paper, a schematic review of the BF-PLA composites was conducted in terms of mechanical properties (i.e., tensile properties, flexural properties, and impact strength), thermal characteristics with and without chemical treatment, and creep behaviour. Moreover, the sustainability aspects, including biodegradability and recyclability of BF-PLA composites, have been discussed based on various manufacturing methods. In addition, the utilization of BF-PLA composites in the additive manufacturing industry, sustainable packaging, structural, dielectric, and automotive applications are also described to make elevations toward future research and industrial implementations or commercialization. Furthermore, the effects of 3D printing parameters on the mechanical and physical properties of printed BF-PLA objects have been summarized. Significantly, this paper highlights the limitations and future perspectives of the BF-PLA composites.
Maria Wasim,Aneela Sabir,Muhammad Shafiq,Atif Islam,Mudassar Azam,Tahir Jamil 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.50 No.-
mixed matrix membrane (MMMs) was fabricated in two steps,first by formation of modified substrateand second is deposition of electrospunfibrous layer with varying sepiolite concentration fornanofiltration. MMM3 showed an optimal MgSO4 rejection of 97.6% with 40.8 L/m2 hflux whileMMM5 showed highest MgCl2 rejection of 96.95% withflux of 31 L/m2 h. The fouling data revealed thatmodified surface is effective in improving the antifouling property which caused decrease in theadsorption phenomena of microbes on to the surface. The antibacterial properties of the membranesshowed the inhibition of the growth of Escherichia coli.
Tahir, Khurram,Miran, Waheed,Nawaz, Mohsin,Jang, Jiseon,Shahzad, Asif,Moztahida, Mokrema,Kim, Bolam,Azam, Mudassar,Jeong, Sang Eun,Jeon, Che Ok,Lim, Seong-Rin,Lee, Dae Sung Elsevier BV 2019 Science of the Total Environment Vol.688 No.-
<P><B>Abstract</B></P> <P>Anode potential is a critical factor in the biodegradation of organics in bioelectrochemical systems (BESs), but research on these systems with complex recalcitrant co-substrates at set anode potentials is scarce. In this study, carbamazepine (CBZ) biodegradation in a BES was examined over a wide range of set anode potentials (−200 to +600 mV vs Ag/AgCl). Current generation and current densities were improved with the increase in positive anode potentials. However, at a negative potential (−200 mV), current generation was higher as compared to that for +000 and +200 mV. The highest CBZ degradation (84%) and TOC removal efficiency (70%) were achieved at +400 mV. At +600 mV, a decrease in CBZ degradation was observed, which can be attributed to a low number of active bacteria and a poor ability to adapt to high voltage. This study signified that BESs operated at optimum anode potentials could be used for enhancing the biodegradation of complex and recalcitrant contaminants in the environment.</P> <P><B>Highlights</B></P> <P> <UL> <LI> LSV analysis showed anode potential enhanced the microbial colonization in BES. </LI> <LI> High potential favored BES, but after +400 mV, BES performance declined. </LI> <LI> CBZ biodegradation and TOC removal were enhanced in BES aided by anodic potential. </LI> <LI> Microbes with high tendency to degrade CBZ were enriched by a controlled potential. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>