Author
Panatda Jannoey
Bio: Panatda Jannoey is an academic researcher from Naresuan University. The author has contributed to research in topics: Photocatalysis & Brown planthopper. The author has an hindex of 6, co-authored 15 publications receiving 76 citations.
Papers
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TL;DR: In this article, the structural and optical properties of bare cerium dioxide (CeO2) and Pd-doped CeO2 (0.5, 1.5 and 2.0) photocatalysts were investigated.
30 citations
22 Jul 2021
TL;DR: WO3/CeO2 heterostructured nanocomposites containing different WO3 ratios (0.1, 0.5, and 1.0 wt %) were synthesized by a precipitation method as mentioned in this paper.
Abstract: WO3/CeO2 heterostructured nanocomposites containing different WO3 ratios (0.1, 0.3, 0.5, and 1.0 wt %) were synthesized by a precipitation method. The coupling of CeO2 and WO3 with a high specific surface area noticeably enhanced the photocatalytic activity of indigo carmine (IC) degradation under visible-light irradiation. The degradation rate constants (k) of 0.5 wt % WO3/CeO2 nanocomposites reached 4 and 5 times higher than those of CeO2 and WO3, respectively. Regarding the experimental results, the X-ray diffraction (XRD) patterns of the CeO2 spherical nanoparticles and rod-shaped WO3 were assigned to the cubic fluorite and orthorhombic phase structures, respectively. The increasing photocatalytic activity of nanocomposite samples could be attributed to the heterojunction of the photocatalysts with efficient charge separation and strong oxidative ability, which were confirmed by the photoluminescence spectra and diffuse reflectance spectrometry. The staggered heterojunction of the nanocomposite promoted efficient electron transfer and suppressed the recombination of photogenerated electrons and holes during the process.
29 citations
TL;DR: It was clearly shown that wound-induced response genes were activated in rice plants after BPH attacks through AOS activation and Jasmonic acid signaling molecule may activate PR6, PR15, GST and CAT subsequently increasing their expression for H 2 O 2 detoxification.
26 citations
TL;DR: In this paper, the crystal structure, composition, morphology, and optical properties of CdS/CeO2 composite were analyzed in detail, and it was found that Cd S/C CeO2 composites consisted of the cubic fluorite structure of CeO 2 and wurtzite hexagonal structure of cdS.
25 citations
TL;DR: The silicon dioxide (SiO2)–coated bismuth vanadate (BiVO4) composites as visible–driven–photocatalysts were successfully synthesized by the co–precipitation method and showed the enhancing photocatalytic activity approximately threefold in comparison with the single phase BiVO4.
Abstract: The silicon dioxide (SiO2)-coated bismuth vanadate (BiVO4) composites as visible-driven-photocatalysts were successfully synthesized by the co-precipitation method The effects of SiO2 coating on the structure, optical property, morphology and surface properties of the composites were investigated by X-ray diffraction (XRD), UV-visible diffuse reflectance spectroscopy (DRS), transmission electron microscopy (TEM) and Brunauer-Emmette-Teller (BET) measurements The photocatalytic activity of monoclinic BiVO4 and BiVO4/SiO2 composites were evaluated according to the degradation of methylene blue (MB) dye aqueous solution under visible light irradiation The SiO2-coated BiVO4 composites showed the enhancing photocatalytic activity approximately threefold in comparison with the single phase BiVO4
15 citations
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TL;DR: It is hoped this review will give an in-depth understanding of the important roles of lignin biosynthesis in various plants’ biological processes and provide a theoretical basis for the genetic improvement of lIGNin content and composition in energy plants and crops.
Abstract: Lignin is one of the main components of plant cell wall and it is a natural phenolic polymer with high molecular weight, complex composition and structure. Lignin biosynthesis extensively contributes to plant growth, tissue/organ development, lodging resistance and the responses to a variety of biotic and abiotic stresses. In the present review, we systematically introduce the biosynthesis of lignin and its regulation by genetic modification and summarize the main biological functions of lignin in plants and their applications. We hope this review will give an in-depth understanding of the important roles of lignin biosynthesis in various plants’ biological processes and provide a theoretical basis for the genetic improvement of lignin content and composition in energy plants and crops.
637 citations
TL;DR: The synthesized Fe2O3 nanoparticles can be considered a promising and efficient photocatalyst for the degradation of crystal violet and methylene blue dyes.
90 citations
University of Mysore1, Council of Scientific and Industrial Research2, Karnataka State Open University3, Centre for Life4, Tallinn University of Technology5, Indian Council of Agricultural Research6, Iuliu Hațieganu University of Medicine and Pharmacy7, Mizoram University8, International Crops Research Institute for the Semi-Arid Tropics9
TL;DR: Comparison of CNP with Chitosan revealed that the very small dosage of C NP performed at par with recommended dose of ChitOSan for downy mildew management and induced systemic and durable resistance and showed significant downy Mildew protection under greenhouse conditions.
Abstract: Downy mildew of pearl millet caused by the biotrophic oomycete Sclerospora graminicola is the most devastating disease which impairs pearl millet production causing huge yield and monetary losses. Chitosan nanoparticles (CNP) were synthesized from low molecular weight chitosan having higher degree of acetylation was evaluated for their efficacy against downy mildew disease of pearl millet caused by Sclerospora graminicola. Laboratory studies showed that CNP seed treatment significantly enhanced pearl millet seed germination percentage and seedling vigor compared to the control. Seed treatment with CNP induced systemic and durable resistance and showed significant downy mildew protection under greenhouse conditions in comparison to the untreated control. Seed treatment with CNP showed changes in gene expression profiles wherein expression of genes of phenylalanine ammonia lyase, peroxidase, polyphenoloxidase, catalase and superoxide dismutase were highly upregulated. CNP treatment resulted in earlier and higher expression of the pathogenesis related proteins PR1 and PR5. Downy mildew protective effect offered by CNP was found to be modulated by nitric oxide and treatment with CNP along with NO inhibitors cPTIO completely abolished the gene expression of defense enzymes and PR proteins. Further, comparative analysis of CNP with Chitosan revealed that the very small dosage of CNP performed at par with recommended dose of Chitosan for downy mildew management.
89 citations
TL;DR: In this paper, porous activated carbon (SCB-AC) has been produced from sugar cane bagasse, one of the most prevalent agro-waste materials in Egypt, through a facile single-step ZnCl2 activation and then used for the adsorptive removal of diclofenac sodium (DFC), as a representative PPCP, out of aqueous solution.
86 citations
TL;DR: Based on high specific surface area, high porosity of metal-organic frameworks (MOFs) and excellent visible light response of CdS, the CDSS/Cd-MOF nanocomposites were constructed by in-situ sulfurization to form Cds using Cd-MoF as precursor, and the Cds loading was controlled by the dose of thioacetamide as mentioned in this paper .
79 citations