Development of multifunctional food packaging films based on chitosan, TiO2 nanoparticles and anthocyanin-rich black plum peel extract

The extraction and combustion of fossil natural gas, consisting primarily of methane, generates vast amounts of greenhouse gases that contribute to climate change. However, as a result of recent research efforts, “solar methane” can now be produced through the photocatalytic conversion of carbon dioxide and water to methane and oxygen. This approach could play an integral role in realizing a sustainable energy economy by closing the carbon cycle and enabling the efficient storage and transportation of intermittent solar energy within the chemical bonds of methane molecules. In this article, we explore the latest research and development activities involving the light-assisted conversion of carbon dioxide to methane. While natural gas and fossil fuels power human activities, increasing concerns over fuel reserves and environmental impacts require finding alternative, renewable resources. Here, authors review the fundamental science and progress on solar-powered conversion of carbon dioxide to methane.

/pdf/fundamentals-and-applications-of-photocatalytic-co-2-2an5mly5ut.pdf

Fundamentals and applications of photocatalytic CO 2 methanation

Over the span of the past decade, carbon dots (CDs) synthesized from renewable organic resources (organic CDs) have gathered a considerable amount of attention for their photoluminescent properties. This review will focus on organic CDs synthesized using clean chemistry and conventional synthetic chemistry from organic sources and their fluorescence mechanisms, such as quantum confinement effect and surface/edge defects, before outlining their performance in electronic applications, including organic photovoltaic devices, organic light-emitting devices, biosensors, supercapacitors, and batteries. The various organic resources and methods of organic CDs synthesis are briefly covered. Many challenges remain before the adoption of CDs can become widespread; their characterization, structure, functionality, and exact photoluminescent mechanism all require additional research. This review aims to summarize the current research outcomes and highlight the area where further research is needed to fully use these materials.

Future Perspectives and Review on Organic Carbon Dots in Electronic Applications.

Recent advances on the fundamental physical phenomena behind stability, dynamic motion, thermophysical properties, heat transport, applications, and challenges of nanofluids

This review focuses on the effect of metal-containing nanomaterials on tribological performance in oil lubrication. The basic data on nanolubricants based on nanoparticles of metals, metal oxides, metal sulfides, nanocomposities, and rare-earth compounds are generalized. The influence of nanoparticle size, morphology, surface functionalization, and concentration on friction and wear is analyzed. The lubrication mechanisms of nanolubricants are discussed. The problems and prospects for the development of metal-containing nanomaterials as lubricant additives are considered. The bibliography includes articles published during the last five years.

/pdf/metal-containing-nanomaterials-as-lubricant-additives-state-gp9jp9ii6w.pdf

Metal-containing nanomaterials as lubricant additives: State-of-the-art and future development

Nanomaterials for photoelectrochemical water splitting - review

Potential applications of nanotechnology in transportation: A review

Hydrophobic, superabsorbing materials from reduced graphene oxide/MoS2 polyurethane foam as a promising sorbent for oil and organic solvents

White light emission by energy transfer from areca nut husk extract loaded with carbon dots synthesized from the same extract

Nanotechnology is a field of science that has wide range of potential applications in various sectors of engineering. By cutting down the size of a particle to nanoscale, its surface area to volume ratio will increase and more atoms or molecules are available to take part in chemical reaction. The mechanical, chemical, electrical and thermal properties of the polymers can be enhanced by incorporating nanomaterials as fillers. In this work, a polymeric nanocomposite has been prepared by incorporating fillers, reduced graphene oxide (r-GO), TiO2 nanoparticles and Ni nanoparticles into an elastomeric matrix that is natural rubber (NR). r-GO is added to improve the mechanical strength and the thermal conductivity of the nanocomposite. Significant improvement in tensile properties (strength, Young’s modulus and elasticity) has been observed during testing of samples prepared with various weight percent of r-GO, TiO2 and Ni nanoparticles. Enhancement in the mechanical properties (yield strength increased by 94 %, tensile strength increased by 147 %) has been achieved with a composition of 1.25 weight percentage of r-GO and TiO2 nanoparticles. Similar improvement has been observed with composition of 0.1 weight percent of TiO2 and Ni nanoparticles into the elastomer at the same composition of r-GO.

Jinu Mathew

Papers

Nanomaterials for photoelectrochemical water splitting - review

Potential applications of nanotechnology in transportation: A review

Hydrophobic, superabsorbing materials from reduced graphene oxide/MoS2 polyurethane foam as a promising sorbent for oil and organic solvents

White light emission by energy transfer from areca nut husk extract loaded with carbon dots synthesized from the same extract

A study on graphene based elastomer with TiO2 and Ni nanoparticles