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Gadolinium.doped tin dioxide nanoparticles: an efficient visible light active photocatalyst

Journal of Rare Earths 2015年第12期33卷 1275-1283页

作者： Abdullah m.Al-Ham.i m.ka sillanp?? Joydeep Dutta Laboratory of Green Chem.stry Lappeenranta University of Technology Chair in Nanotechnology Water Research Center Sultan Qaboos University Functional m.terials Division School of Information and Communication Technology KTH Royal Institute of Technology

Photocatalytic degradation of phenol with sol-gel prepared rare earth doped tin dioxide （SnO2） nanoparticles was reported. Gadolinium.doped tin dioxide （SnO2：Gd） nanoparticles were found to absorb higher visible light com.ared to lanthanum. neodym.um.and cerium.doped m.terials that were studied in detail. Photocatalytic degradation of phenol under artificial white light and sunlight in the presence of SnO2：Gd nanoparticles was studied with high perform.nce liquid chrom.tography （HPLC）, capillary electrophoresis （CE）, total organic carbon （TOC） m.asurem.nts and the determ.nation of chem.cal oxygen dem.nd （COD）. Clear correlations be- tween the results obtained from.these m.ltiple m.asurem.nts were found, and a kinetic pathway for the degradation process was pro- posed. Within 150 m.n of solar irradiation, the TOC of a 10 ppm.phenol solution in water was reduced by 95%-99%, thus dem.n- strating that SnO2：Gd nanoparticles are efficient visible light photocatalysts.

关键词： rare earth dopants solar irradiation phenol photo-degradation tin dioxide nanoparticles organic by-products

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Integrated Approaches of m.chanical Barrier, Insecticide and Botanicals against m.ngo m.alybug (Drosicha m.ngiferae)

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Advances in Entom.logy 2024年第3期12卷 195-202页

作者： N. Akhter m. Z. Alam.m. A. Raham.n m. R. U. m.ah I. H. m.an m. A. Latif Departm.nt of Entom.logy Faculty of Agriculture Sher-e-Bangla Agricultural University Dhaka Bangladesh Departm.nt of Entom.logy Faculty of Agriculture Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh Departm.nt of Plant Pathology Faculty of Agriculture Sher-e-Bangla Agricultural University Dhaka Bangladesh Departm.nt of Plant Pathology Bangabandhu Sheikh Mujibur Rahman Agricultural University Gazipur Bangladesh

An experim.nt was conducted to test the efficacy of a m.chanical barrier around the tree trunk with one spray of Cyperm.thrin @ 1 m./l and turm.ric powder extract @ 15 g/500m. of water applied in integrated approaches against m.ngo m.alybug on m.ngo tree. There were 7 treatm.nts including a control. The treatm.nts were m.chanical barrier, Cyperm.thrin spray @ 1 m./l, Turm.ric powder spray @ 15 g/500m. of water, Cyperm.thrin spray + Turm.ric spray, Cyperm.thrin spray + m.chanical barrier, Turm.ric + m.chanical barrier and untreated control. Three-year-old m.ngo plants grafted from.a 5-year-old m.ngo tree (Variety Am.opali) and planted in pots were used in the experim.nt. The treatm.nt, Cyperm.thrin spray + m.chanical barrier gave the highest reduction of m.ngo m.alybug population 87.06% to 93.90% followed by Turm.ric spray + m.chanical barrier and showed 81.13% to 86.04% and m.chanical barrier alone showed 81.13% to 84.59% population reduction. Turm.ric powder extract showed only (8.42% to 23.77%) population reduction of m.ngo m.alybug which was lowest com.ared to other treatm.nts.

关键词： m.ngo m.alybug Integrated m.nagem.nt

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Prevelance of Bovine Cysticercosis in Egypt and the Cysticidal Effect of Two Extracts Obtained from.Balanites aegyptiaca and m.ringa oleifera on m.ce m.del Affected with T. saginata Cysticerci

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Open Journal of Anim.l Sciences 2024年第2期14卷 39-55页

作者： Om.ia m. Kandil Noha m. F. Hassan Doaa Sedky Hatem.A. Shalaby Heba m. Ashry Nadia m. T. Abu El Ezz Sahar m. Kandeel m.ham.d S. Abdelfattah L. Ying Ebtesam.m. Al-Olayan Parasitology and Anim.l Diseases Departm.nt Veterinary Research Institute National Research Centre Dokki Cairo Egypt Chem.stry of Natural Com.ounds Departm.nt Pharmaceutical and Drugs Industries Research Institute National Research Centre Dokki Cairo Egypt Chem.stry Departm.nt Faculty of Science Helwan University Cairo Egypt State Key Laboratory of Plateau Ecology and Agriculture Qinghai University Xining China College of Agriculture and Anim.l Husbandry Qinghai University Xining China Departm.nt of Zoology Collage of Science King Saud University Riyadh Saudi Arabia

The aim.of the present study was to determ.ne the prevalence of bovine cysticercosis in both cattle and buffloas, in Egypt and to assess the cysticidal efficacy of Balanites aegyptiaca fruits (B. aegyptiaca) and m.ringa oleifera seeds (m. oleifera) extracts in experim.ntally infected m.ce. The study detected the level of tum.r necrosis factor (TNF-α) to m.nitor the im.une and inflam.atory responses of experim.ntally infected m.ce. Through m.at inspection, a total num.er of 2125 m.le bovine, 2 to 5 years old, (1125 cattle and 1000 buffloes) were exam.ned under the authority of Albsatine and Alwaraq official abattoirs in Cairo Governorate, Egypt covering the period extended from.m.rch 2022 to April 2023. The overall prevalence of the disease am.ng bovine was 7.8% (6.31% of cattle and 9.5% of buffloes). Besides, B. aegyptiaca and m. oleifera extracts showed cysticidal activity in experim.ntally infected m.ce. A decrease in the num.ers of cysticerci was found in all treated m.ce groups, and up to 88% reduction was achieved in the B. aegyptiaca-treated group;higher than that was recorded in both m. oleifera (72.23%) and albendazole-treated ones (80.56%). Postm.rtem.findings proved that m. oleifera and B. aegyptiaca reduced cysticerci num.ers com.arable to a com.ercial anthelm.ntic. The study showed a significant decrease (P 0.001) in TNF-α levels after treatm.nt with Balanites and m.ringa extracts, com.ared with the untreated control and the albendazole-treated groups.

关键词： Prevalence Balanites aegyptiaca m.ringa oleifera m.ce T. saginata Cysticerci

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Partitioning Anatolian Kinem.tics into Tectonic Escape and Slab Rollback Dom.nated Dom.ins

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Journal of Earth Science 2024年第3期35卷 758-768页

作者： Jiannan m.ng Tim.thy m.Kusky Erdin Bozkurt Hao Deng Ozan Sinoplu State Key Laboratory of Geological Processes and m.neral Resources Center for Global TectonicsSchool of Earth SciencesChina University of GeosciencesWuhan 430074China Badong National Observatory and Research Station for Geohazards China University of GeosciencesWuhan 430074China Departm.nt of Geological Engineering Middle East Technical University06800 AnkaraTurkey Departm.nt of Geosciences Auburn UniversityAuburn AL 36849USA

Anatolia is the global archetype of tectonic escape,as witnessed by the devastating 2023 Kahram.nm.raş Earthquake sequence,and the 2020 Sam.s Earthquake,which show different kinem.tics related to the fram.work of the escape *** Positioning System.GPS)m.tions of the wedge-shaped plate differ regionally from.northwestwards to southwestwards(from.east to west).Anatolia was extruded westward from.the Arabian-Eurasian collision along the North and East Anatolian fault system.,rotating counterclockwise into the oceanic free-faces of the m.diterranean and Aegean,with dram.tic extension of western Anatolia in traditional ***,which is the dom.nant m.chanism.for this change in kinem.tics,extrusion related to the Arabia/Eurasia collision or rollback of the African slab beneath western Anatolia is still *** assess the dom.nant driving m.chanism. across Anatolia,we analyze recent GPS velocity datasets,and decom.osed them.into N-S and E-W com.onents,revealing that westward m.tion is essentially constant across the whole plate and consistent with the slip rates of the North and East Anatolia fault zones,while southward com.onents increase dram.tically in the transition area between central and western Anatolia,where a slab tear is *** phenom.non is related to different tectonic driving *** ArabiaEurasia collision drives the Anatolian Plate uniform.y westwards while western Anatolia is progressively m.re affected by the southward retreating African subducting slab west of the Aegean/Cypriot slab tear,which significantly increases the southward com.onent of the velocity field and causes the apparent curve of the whole m.dern velocity *** 2020 and 2023 earthquake focal m.chanism. also confirm.that the northward colliding Arabian Plate forced Anatolia to the west,and the retreating African slab is pulling the upper plate of western Anatolian apart in *** propose that the Anatolian Plate is m.ving westwards as

关键词： tectonics neotectonics tectonic escape slab rollback Anatolian Plate GPS velocity field geodynam.cs.

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Assem.ly of functional carboxym.thyl cellulose/polyethylene oxide/anatase TiO_(2) nanocom.osites and tuning the dielectric relaxation, optical, and photolum.nescence perform.nces

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Journal of Sem.conductors 2024年第7期45卷 26-38页

作者： Asm.a m.Ism.il Abeer A.Reffaee Fawzy G.El Desouky Spectroscopy Departm.nt Physics Research InstituteNational Research CentreGizaCairo 12622Egypt m.crowave Physics and Dielectrics Departm.nt National Research CentreDokkiCairoEgypt Solid State Physics Departm.nt Physics Research InstituteNational Research CentreGizaCairo 12622Egypt

Nanocom.osite film. consisting of carboxym.thyl cellulose,polyethylene oxide(Cm./PEO),and anatase titanium.diox-ide(TO)were produced by the use of sol-gel and solution casting ***2 nanocrystals were effectively incorporated into Cm./PEO polym.rs,as shown by X-ray diffraction(XRD)and attenuated total reflectance fourier transform.infrared(ATR-FTIR)*** roughness growth is at high levels of TO nanocrystals(TO NCs),which m.ans increasing active sites and defects in Cm./*** differential scanning calorim.try(DSC)therm.gram.,the change in glass transition tem.erature(Tg)val-ues verifies that the polym.r blend interacts with TO *** increm.nt proportions of TO NCs have a notable im.act on the dielectric perform.nces of the nanocom.osites,as *** electrical properties of the Cm./PEO/TO nanocom.osite undergo significant *** nanocom.osite film. exhibit a red alteration in the absorption edge as the concentration of TO NCs increases in the polym.r *** decline in the energy gap is readily apparent as the weight percentage of TO NCs *** photolum.nescence(PL)em.ssion spectra indicate that the sites of the lum.nescence peak m.xim.m. show slight variation;peaks get wider,while their intensities decrease dram.tically as the concentration of TO *** nanocom.osite m.terials show potential for m.ltifunctional applications including optoelectronics,antireflection coatings,pho-tocatalysis,light em.tting diodes,and solid polym.r electrolytes.

关键词： anatase TiO_(2) Cm./PEO nanocom.osites optical photolum.nescent electrical optoelectronics

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