Adsorption and Photocatalytic Degradation Properties of Bimetallic Ag/MgO/Biochar Nanocomposites

Abstract

The Ag/MgO/biochar nanostructures were fabricated using a solvent-free ball milling process as an effective adsorbent. Development of functional materials capable of completely removing organic pollutants from water and their adequate adsorption present challenges. The addition of MgO nanoparticles diffused equally on biochar surfaces in the biochar matrix, according to various characterization data. In decomposing biochar and compressing MgO, powdered metal enhanced mesopores and macropores of nanocomposites. XPS analysis indicates the potential synthesis of modified biochar nanocomposites. Adequate amounts of MgO added to biochar improved the ability of the nanocomposites to remove methylene blue (M.B.) through photosynthesis and adsorption. Photocatalytic analysis was carried out for the proposed novel composites to remove tetracycline (T.C.) subjected to different conditions. The photodegradation efficiency was found 80.26% for TC concentration, 50 ppm, H2O2 of 100 mM pH: 5-6 of Ag/MgO/biochar (0.01 g) at 25° temperature. Treatment of various organic wastewaters by metal oxide/biochar nanocomposites with strong adsorption and photocatalytic degradation capabilities is made possible by this research.

Sustainable development and conservation of agro‐waste coconut shell powder strengthen lightweight aluminum bio‐composite for user friendly

“…The density of cast Al7075 alloy is 2.79 ± 0.51 g/cc, and additions of 5 wt% coconut shell powder show a minor improvement in the density of 2.80 ± 0.15 g/cc. Further increases of coconut shell powder in Al7075 alloy were found at 2.81 ± 0.31 g/cc and 2.82 ± 0.17 g/cc, respectively, and obey the rule of mixture (Sekaran, 2022). However, the density of Al7075 composite with coconut shell powder was identified as a minimum improvement of 1.07% (sample 4) compared to cast Al7075 alloy (sample 1).…”

“…Further increases of coconut shell powder in Al7075 alloy were found at 2.81 ± 0.31 g/cc and 2.82 ± 0.17 g/cc, respectively, and obey the rule of mixture (Sekaran, 2022). However, the density of Al7075 composite with coconut shell powder was identified as a minimum improvement…”

Synthesis and Experimental Thermal Adsorption Characteristics of Epoxy Hybrid Composite for Energy Storage Applications

“…Epoxy resin and hardener were chosen as adhesive materials. Kevlar and basalt fiber combinations improve the composite's thermal stability and impact strength [7][8][9]. The mechanical and thermal properties of both fibers are listed in Table 1.…”

“…The composite was compressed with an applied compressive force of 1 KN maintained for the next 1 hr. It helps increase adhesive properties [8, 9]. Finally, the developed composites are shaped as per test standards.…”

“…More research investigation is done relevant to polymer matrix composite with various combinations of natural and synthetic fibers. The Kevlar/ basalt fiber combinations play a vital role in various industrial applications due to their enhanced thermal characteristics compared to other combinations [7][8][9]. The sandwichconfigured Kevlar-flax-epoxy hybrid composite found superior impact and tensile strength [10].…”