#nanocomposite

In the vast universe of materials science, polyvinylidene fluoride (PVDF) has become a star material that has attracted the attention of both the scientific research community and the industry in recent years due to its unique physical and chemical properties. From basic molecular structure research to high-end functional applications, PVDF materials are advancing the boundaries of scientific…

Tailored Synthesis of PS@Ag@TiO2 Core-shell Nanocomposite for Photocatalytic Dye Degradation by Himadri Acharya* in Crimson Publishers: Peer Reviewed Material Science Journals 

Here, we describe a simple chemical method to synthesize multi component PS@Ag@TiO2 nanocomposites. The three-step synthetic approach comprises of synthesis of polystyrene (PS) particles, deposition of silver (Ag) nanostructure and coating of titanium dioxide (TiO2) nanoshells. As synthesized materials is characterised by microscopic and spectroscopic techniques. The size of the PS particles is obtained as approx. 200nm in diameter. Ag nanoparticles deposited PS particles are indicated by the surface plasmon band resonance in UV-vis study. To study the potential application, the photocatalytic activity of the PS@Ag@TiO2 nanocomposites is investigated in Methylene Blue (MB) dye degradation. Nanocomposite provides high photocatalytic degradation with a maximum efficiency of over 90% only in 30min. 

For more Open access journals in Crimson Publishers please click on below link https://crimsonpublishersresearch.com/

Dyes are  used  in various  industries  such as  pharmaceutical,  cosmetic, paper,  leather,  food stuff, plastics, and textile etc. The dye effluents are discharged into environment by either water or land. The discharge of these effluents into the receiving environments results in hazardous health problems as most of these dyes have carcinogenic effects on the living organisms. Congo red was removed on Montmorillonite-silica nanocomposite from solution by adsorption process. The adsorption parameters studied  were adsorbent  dose, initial  concentration  and contact  time.  The optimum  adsorption parameters were found to be 2 mg/L, 1.5 g and 40 minutes for initial concentration, adsorbent dose and  contact  time respectively  with  removal percentage  of  84.10%. Pseudo  first and  second order kinetics were used for the studies. Pseudo second order best fit the adsorption process with R²= 1 than the Pseudo first order which has R²= 0.933. Experimental data were best fitted by the Langmuir Isotherm  with  R²=0.9024  other than  the  Freundlich Isotherm,  R²=0.568.  The RL  of  0.994 of  the Langmuir  isotherm shows  the  favourability of  the  adsorption process.  The  maximum adsorption capacity by Langmuir isotherm was found to be 172. 40 mg/g. The adsorption process of Congo red was carried  out  using Montmorilonite  silica  nanocomposite.  From the  experimental  data the percentage removal of 84.10% obtained at an optimum initial concentration of 2 mg/l, an optimum adsorbent dose of 1.5 g and optimum contact time of 40 minutes. Experimental data were best fitted by the Langmuir Isotherm with R²=0.9024 other than the Freudlich Isotherm, R²=0.568. The pseudo second order kinetic with R²= 1 best fit the adsorption process other than the pseudo second order kinetics,  R²=0.933. Therefore, montmorillonite-silica nanocomposite  obtained  from montmorillonite clay and Rice husk ash can serve as a cost-effective adsorbent in the removal of Congo red dye.

Author(s) Details

Dr Danbature Wilson Lamayi

Department of Chemistry, Faculty of Science, Gombe State University, Gombe, Nigeria.

Zaccheus Shehu

Department of Chemistry, Faculty of Science, Gombe State University, Gombe, Nigeria.

Read full article: http://bp.bookpi.org/index.php/bpi/catalog/view/39/145/290-1

Nanocomposite Market Size (Sales) Comparison by Type (2018-2025)

In this report, the EMEA Nanocomposite market is valued at USD XX million in 2017 and is expected to reach USD XX million by the end of 2025, growing at a CAGR of XX% between 2017 and 2025.

Access Full Report: https://www.algororeports.com/reports/emea-europe-middle-east-and-africa-nanocomposite-market-report-2018

Geographically, this report split EMEA into Europe, the Middle East and Africa,…

Magnetic Properties of New Nanoporous Material for Data Storage, Attracts Attention

Electronic devices which store information through magnetisation rely on magnetic switching, typically enabled by localised magnetic fields (generated via electromagnetic induction) or by spin-polarised electric currents (spin-transfer torque). However, both systems require relatively high electric currents which heat up materials, resulting in significant energy loss through heat dissipation –…