Abstract: The paper reports the fabrication of Zn-doped TiO nanotubes (Zn-TONT)/ZnO nanoflakes heterostructure for the first time, which shows improved performance as a photoanode in dye-sensitized solar cell (DSSC). The layered structure of this novel nanoporous structure has been analyzed unambiguously by Rutherford backscattering spectroscopy, scanning electron microscopy, and X-ray diffractometer. The cell using the heterostructure as photoanode manifests an enhancement of about an order in the magnitude of the short circuit current and a seven-fold increase in efficiency, over pure TiO photoanodes. Characterizations further reveal that the Zn-TONT is preferentially oriented in [001] direction and there is a Ti metal-depleted interface layer which leads to better band alignment in DSSC.
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http://dx.doi.org/10.1007/s40820-016-0099-z | DOI Listing |
BMC Plant Biol
August 2024
Department of Biology, Faculty of Biological and Biomedical Science, The University Haripur, Khyber Pakhtunkhwa, 22620, Pakistan.
Green synthesis is an easy, safe, and environmentally beneficial nanoparticle creation method. It is a great challenge to simultaneously improve the capping and stabilizing agent carrier separation efficiency of photocatalysts. Herein, Zn-doped Titanium dioxide (TiO) nanoparticles with high exposure of 360 nm using a UV/visible spectrophotometer were prepared via a one-step hydrothermal decomposition method.
View Article and Find Full Text PDFACS Omega
August 2024
Department of Physics, Government College University Faisalabad (GCUF), Allama Iqbal Road, Faisalabad 38000, Pakistan.
The current research is related to the synthesis of different concentrations (0, 3, and 7 wt %) Zn doped TiO-NPs by using the coprecipitation method. The rutile, anatase crystal structure appeared on different diffracted peaks in TiO-NPs, and the crystallite size (12 to 24 nm) was calculated by using XRD analysis. The spherical, irregular, porous grain-like surface morphology was observed by SEM analysis, and the identification of different functional modes such as hydroxyl, -C-O, -C-O-C, and Ti-O-Ti attached on the surface of the spectrum was examined via FTIR analysis.
View Article and Find Full Text PDFZn-containing TiO-based coatings with Na, Ca, Si, and K additives were obtained by plasma electrolytic oxidation (PEO) of Ti in order to achieve an effective and broad bactericidal protection without compromising biocompatibility. A protocol has been developed for cleaning the coating surface from electrolyte residues, ensuring the preservation of the microstructure and composition of the surface layer. Using high-resolution transmission electron microscopy, three characteristic microstructural zones in the PEO-Zn coating are well documented: zone 1 with a TiO-based nanocrystalline structure, zone 2 with an amorphous structure, and zone 3 around pores with an amorphous-nanocrystalline structure.
View Article and Find Full Text PDFSci Rep
September 2023
Enzyme Biotechnology Laboratory, Department of Biotechnology, Punjabi University, Patiala, 147002, India.
Polymers (Basel)
June 2023
Department of Textile Engineering, School of Engineering and Technology, National Textile University, Faisalabad 37610, Pakistan.
Frequent washing of textiles poses a serious hazard to the ecosystem, owing to the discharge of harmful effluents and the release of microfibers. On one side, the harmful effluents from detergents are endangering marine biota, while on the other end, microplastics are observed even in breastfeeding milk. This work proposes the development of sunlight-driven cleaning and antibacterial comfort fabrics by immobilizing functionalized Zn-doped TiO nanoparticles.
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