Materials Literature
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Using alkaline treatment and grafting method, the bagasse fiber surface were modified, and the reaction conditions for graft copolymerization of bagasse and aminotriacetic acid were optimized by orthogonal test. The surface structure and surface morphology, section morphology and tensile strength of PVA/starch composi…
Epoxy pouring sealant were prepared using DER 331 and epoxy modified by polyurethane as matrix,liquid flame retardants and Al( OH)3as composite flame retardants,692 as thinner,silica powder and Calcium carbonate as the filler.The effects of different materials on properties of the epoxy pouring sealant were studied. T…
We are studying the reaction of analogs of the anticancer drug cisplatin with amino acids that differ in size and shape. The reaction of cisplatin with proteins likely precedes reaction with DNA in the body, forming a variety of products that may be toxic to the human body. The size and shape of the platinum(II) compl…
We develop a compact ultrafast electron diffractometer, consisting of a laser-driven rf photocathode that generates 3.0 MeV probe electron pulses with 100-fs temporal widths. High-quality single-shot transmission electron diffraction is detected under kinematic regimes using three-stage lens optics and a high-sensitiv…
The hierarchical ZSM-5 zeolites with controllable mesopore volumes were synthesized using surfactant cetyltrimethylammonium bromide (CTAB) as mesoporous structure directing agent by the soft-template hydrothermal crystallization method, and the effects of their hierarchy and acidity on the product distribution in the…
Classical molecular dynamics (MD) simulations are commonly used to explore the migration of grain boundaries. Our previous research on low sigma symmetric boundaries has shown that at conditions of low driving forces as found in actual experimental setups and when going towards system sizes exceeding those commonly em…
This article discusses the possibility of increasing the efficiency of betavoltaic generators by using lithium niobate single−crystal bimorph as the piezoelectric transducer element. Existing betavoltaic alternating voltage generators consist of a piezoelectric cantilever and a electron source, wherein the cantileve…
Dicle Universitesi Bilimsel Arastirma Projeleri Koordinatorlugu (DUBAP) tarafindan 12-FF-21 no'lu proje kapsaminda desteklenmistir.
In this work the application of vacuum-free and roll-to-roll compatible Langmuir-Blodgett processing is proposed for deposition of anti-scratch and oleofobic protective coatings coatings for providing long-term clearness of solar modules surface as well as for fabrication of stable photonic nanostructures for efficien…
Properties of hybrid particleboard from acacia mangium and petal belalang using phenol formaldehyde resin This study was carried out to investigate the properties of hybrid particleboard from Acacia mangium and Petai belalang using Phenol formaldehyde resins. The particleboard was produce from two types of species whi…
Whole Effluent Toxicity (WET) testing evaluates the toxic effect of unknown or multiple substances in wastewater using aquatic organisms. It has already been implement in the US. When the result of WET testing indicates the effect exceeding a certain standard, Toxicity Reduction Evaluation (TRE) and Toxicity Identific…
가시광을 이용하여 CO2 환원을 시키기 위해 TiO2 반도체에 흡광체로 유기염료(DMOM)와 CO2 환원촉매로 Re(I) complex를 접합시킨 triad 구조가 제시되었다. 빛을 조사하였을 때, 유기염료가 광자를 흡수하여 들뜬 전자들은 TiO2의 conduction band로 이동되고 최종적으로 Re(I) complex위치로 이동하여 CO2가 CO로 환원되는 메커니즘을 가진다. 또한 전자를 건네 준 염료는 SDN에 의해 전자를 제공받아 재생되는 catalytic cycle을 가진다. 유기염료(DMOM)를 기반으로 Hydrophilic한 그룹을 치환시키는 것을 통…
최근에 나노섬유는 많은 산업에서 이용되고 있는데, 나노섬유를 이용하여 새로운 재료가 개발될 수 있다는 기대가 크기 때문이다. 나노섬유는 비표면적이 크고, 유연성이 있으며, 다양한 기계적, 화학적 특성ㅇ르 가지고 있다. 나노섬유는 에너지 저장기기, 필터, 발광기기, Membrane, 전극 등의 다양한 산업에서 이용되고 있다. 금속 나노섬유는 전기방사 공정을 통해서 다양한 종류 및 형태의 나노섬유를 제조할 수 있기 때문에 유/무기 나노섬유를 제작하는데 있어 유용하게 사용되고 있다. 본 연구에서는 PVP를 이용하여 금속 나노섬유 제조를 위한 효율적인 전기방사 조건을 도출…
Ce travail de these a eu comme objectif la mise en place et la validation d'une methodologie experimentale pour le suivi de l'evolution in-vitro de substituts osseux a base de phosphates de calcium. Du phosphate dicalcique dihydrate (DCPD, CaHPO4·2H2O) et du phosphate tricalcique beta (b-TCP, b-Ca3(PO4)2) ont ete choi…
Silica aerogel/unsaturated polyester composites were fabricated by room temperature forming of silica aerogel powders and unsaturated polyester resin. Due to the porous structure, silica aerogel showed extremely low thermal conductivity. But owing to the attraction of aerogel and polymer resin, aerogel pores isn’t pre…
This thesis studies the evolution and characteristics of quantum dot molecules (QDMs) on cross hatch patterns (CHPs). QDMs are grown by a partial-capping-and-regrowth technique on CHP templates which are 25-nm In0.2Ga0.8As on GaAs substrates. The morphological and optical properties of the nanostructures are studied b…
MnCO₃ nanospheres and nanocubes have been successfully synthesized by a facile precipitation method utilizing ethylene glycol. When these MnCO₃ samples were employed as electrodes in the pseudocapacitor with an aqueous NaClO₄ electrolyte, they exhibited excellent supercapacitor characteristics. The MnCO₃ nanospheres s…
Titanium loaded activated carbon fiber ( TiO2?ACF) composite materials were prepared by the sol?gel method. The structural features of the TiO2?ACF were investigated by XRD, SEM, UV?Vis, FT?IR and XPS. And the photocatalytic performance of the TiO2?ACF was tested by photocatalytic degradation of aqueous Rhodamine B (…
화석연료의 지속적인 사용으로 야기된 에너지의 고갈과 이산화탄소의 증가로 가속화되고 있는 지구온난화 문제는 최근 세계적인 탑 이슈로 대두되고 있다. 환경과 에너지, 이 두 문제를 동시에 해결하기 위한 방안으로 이산화탄소를 광 환원시켜 메탄과 같은 에너지원을 생산하는 연구는 꽤 주목할 만하다. 본 연구에서는 TiO2와 Copper를 TiO2에 골격 치환한 Cu-TiO2 촉매를 합성하여 이산화탄소 광 환원반응에 사용하고자 하였다. 사용된 광 촉매 소재는 Solvothermal법으로 합성을 하였고, XRD를 통해 결정을 확인하였다. 얻어진 분말 촉매들은 촉매반응 전 FTO…
In order to investigate the effects of an axial magnetic field on film structure and properties,TiN films were deposited on high-speed-steel(HSS)substrates by arc ion plating.The effects of the intensity of magnetic field on the chemical composition,microstructure,hardness and elastic modulus was investigated by X-ray…