Zobrazeno 1 - 10
of 34 586
pro vyhledávání: '"UV–vis"'
Autor:
Nastaran Parsafard, Ghazaleh Aghajari
Publikováno v:
BMC Chemistry, Vol 18, Iss 1, Pp 1-10 (2024)
Abstract This study presents the development and optimization of La@SnO2–CaO composite catalysts for efficient photocatalytic degradation of malachite green dye in aqueous solutions under UV–vis light irradiation. The catalysts were prepared via
Externí odkaz:
https://doaj.org/article/06a266cb4acf4924b40f47cc96979f3c
Autor:
Kintali Manohor Prasad, P. Srinivasan
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-13 (2024)
Abstract The fascinating electronic applications attracted researchers to explore the field of nonlinear optical (NLO) materials. The slow evaporation of solvent technique (SEST) was employed to grow the 2-cyanopyridinium perchlorate (2-CPPC) NLO sin
Externí odkaz:
https://doaj.org/article/2570c12f1d7b4d9f9ce3ed15f2f9d956
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-24 (2024)
Abstract Modern laboratory medicine relies on analytical instruments for bacterial detection, focusing on biosensors and optical sensors for early disease diagnosis and treatment. Thus, Density Functional Theory (DFT) was utilized to study the reacti
Externí odkaz:
https://doaj.org/article/16e855563b1a4916b6f24a04530d9279
Autor:
Nastaran Parsafard, Zahra Shoorgashti
Publikováno v:
Applied Water Science, Vol 14, Iss 10, Pp 1-12 (2024)
Abstract Herein, La@MxOy/TiO2 (M = V, Cr, Mn and Fe) composite catalysts were prepared based on the sol–gel method as an effective adsorbent and photocatalyst for the degradation of malachite green from an aqueous solution under UV–Vis light. Und
Externí odkaz:
https://doaj.org/article/d47f69d1a39f489ea56655e5bc21babd
Studies on structural, optical, thermal and low energy shielding for gamma rays for the ZSBP glasses
Publikováno v:
Nuclear Engineering and Technology, Vol 56, Iss 9, Pp 3796-3803 (2024)
By employing the melt-quenching technique, the ZnO–SrO–B2O3–PbO (ZSBP) glasses have been successfully fabricated. The derivative of Absorption Spectra Fitting (DASF) method was used to study the energy band gap (Eg) of the glasses which decreas
Externí odkaz:
https://doaj.org/article/226ca438b96e40529ef2448ececcb6db
Autor:
Anna Szekeres, Sashka Alexandrova, Mihai Anastasescu, Hermine Stroescu, Mariuca Gartner, Peter Petrik
Publikováno v:
Micro, Vol 4, Iss 3, Pp 426-441 (2024)
Nanoscale oxides grown in c-silicon, implanted with low-energy (2 keV) H+ ions and fluences ranging from 1013 cm−2 to 1015 cm−2 by RF plasma immersion implantation (PII), have been investigated. The oxidation of the implanted Si layers proceeded
Externí odkaz:
https://doaj.org/article/dbb68e48a7e44addb3220f9bf75b3493
Autor:
Veronica D’Eusanio
Publikováno v:
Analytica, Vol 5, Iss 3, Pp 311-321 (2024)
Watermelon suffers substantial post-harvest losses owing to strict quality standards, resulting in 20–30% of the crop being left unharvested. This study investigated the potential of valorizing dried watermelon pomace (DWP), a byproduct of watermel
Externí odkaz:
https://doaj.org/article/7fac4b3c8444474296c0239dff91065a
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 20, Iss 1, Pp 1684-1692 (2024)
A spectroscopic setup for isomerization quantum yield determination is reported. The setup combines fiber-coupled LEDs, a commercially calibrated thermopile detector for measurement of the photon flux, and a fiber-coupled UV–vis spectrometer. By so
Externí odkaz:
https://doaj.org/article/2ba8654124ec4829a31efb6b5d406952
Autor:
Achmad Chafidz, Suharno Rusdi, Imam Nurrahman, Haryanto, Agam Duma Kalista Wibowo, Adi Kusmayadi, Danang Tri Hartanto
Publikováno v:
Communications in Science and Technology, Vol 9, Iss 1, Pp 199-206 (2024)
In this work silver nano/micro-particles have been synthesized using sambiloto (Andrographis paniculata) plant extract as a bio-reducing agent. The effects of different plant extract concentrations, AgNO3 precursor concentrations, and reaction time o
Externí odkaz:
https://doaj.org/article/b83723b6188847ffb9cac8b700c2b68f
Autor:
Faride Unda, Lisanne de Vries, Steven D. Karlen, Jordan Rainbow, Chengcheng Zhang, Laura E. Bartley, Hoon Kim, John Ralph, Shawn D. Mansfield
Publikováno v:
Biotechnology for Biofuels and Bioproducts, Vol 17, Iss 1, Pp 1-15 (2024)
Abstract Background The phenolic polymer lignin is one of the primary chemical constituents of the plant secondary cell wall. Due to the inherent plasticity of lignin biosynthesis, several phenolic monomers have been shown to be incorporated into the
Externí odkaz:
https://doaj.org/article/c7c0e7512d674e33ab4263cc98f27c29