نتایج جستجو برای: teller bet

تعداد نتایج: 12557  

Journal: :International Journal of Integrated Engineering 2022

Carbon dioxide is one of the greenhouse gases that cause climate change, thus effort for reducing concentration CO2 necessary, example through conversion CO2. The into methanol plays important role, because in addition to gas, it also creating a future energy carrier needed fuel cell technology. One methods electrolysis method using MEA. electrochemical this study used Cu2O-ZnO/C composite cata...

Journal: :Langmuir 2021

Can the sorption mechanism be proven by fitting an isotherm model to experiment? Such a question arises because (i) multiple models, with different assumptions on mechanisms, often fit experimental equally well, (ii) some models [such as Brunauer–Emmett–Teller (BET) and Guggenheim–Anderson–de Boer (GAB)] isotherms that do not satisfy underlying of model, (iii) (such Oswin Peleg) are empirical e...

Journal: :Nano futures 2022

Abstract Para -nitroaniline (PNA) and ortho (ONA) are highly toxic contaminants in aqueous solution must be treated. In the current investigation, novel magnetic nanocomposites containing copper ferrite (CuFe 2 O 4 ) gelatin-derived carbon quantum dots (CQDs) were successfully synthesized. The prepared nanocatalyst was characterized by scanning electron microscopy, x-ray diffraction, transmissi...

Journal: :MATEC web of conferences 2022

Composite elastomer microwave absorbers were developed based on two-phase hybrid filler. Nanosized magnetite was synthesized for the first time in porous texture of activated carbon. Combination fillers with high dielectric losses such as active carbon, and magnetic into filler is considered a new Hightech generation specific technical characteristics. The influence obtained shielding effective...

Journal: :Asian Journal of Applied Chemistry Research 2022

Oil bean pods (OBPs) are a biomass that indiscriminately dumped in eastern Nigeria, thus causes lot of pollution. In this study, microcrystalline cellulose (MCC) was isolated from oil using acid hydrolysis, and several characterizations were performed variety sophisticated techniques. Fourier transform infrared (FTIR) spectroscopy analysis has indicated the removal lignin hemicellulose MCC extr...

2011
Shaofeng Zhang Wei Wu Xiangheng Xiao Juan Zhou Feng Ren Changzhong Jiang

Magnetic spindle-like Fe3O4 mesoporous nanoparticles with a length of 200 nm and diameter of 60 nm were successfully synthesized by reducing the spindle-like α-Fe2O3 NPs which were prepared by forced hydrolysis method. The obtained samples were characterized by transmission electron microscopy, powder X-ray diffraction, attenuated total reflection fourier transform infrared spectroscopy, field ...

2014
Xiaojun Ma Hongmei Yang Lili Yu Yin Chen Ying Li

High surface area activated carbon fibers (ACF) have been prepared from bamboo by steam activation after liquefaction and curing. The influences of activation temperature on the microstructure, surface area and porosity were investigated. The results showed that ACF from bamboo at 850 °C have the maximum iodine and methylene blue adsorption values. Aside from the graphitic carbon, phenolic and ...

Journal: :Chemistry 2014
Oleksii V Gutov Wojciech Bury Diego A Gomez-Gualdron Vaiva Krungleviciute David Fairen-Jimenez Joseph E Mondloch Amy A Sarjeant Salih S Al-Juaid Randall Q Snurr Joseph T Hupp Taner Yildirim Omar K Farha

We designed, synthesized, and characterized a new Zr-based metal-organic framework material, NU-1100, with a pore volume of 1.53 ccg(-1) and Brunauer-Emmett-Teller (BET) surface area of 4020 m(2) g(-1) ; to our knowledge, currently the highest published for Zr-based MOFs. CH4 /CO2 /H2 adsorption isotherms were obtained over a broad range of pressures and temperatures and are in excellent agreem...

2010
Zahira Yaakob Lukman Hakim Satheesh Kumar Manal Ismail Wan Ramli Wan Daud

Hydroxyapatite (HAp) supported Nickel (Ni) catalyst was prepared using wet impregnation method. A series of Ni/HAp catalysts have been prepared by varying the amount of nickel viz., 3, 6 and 12 %. The highest Brunauer-Emmett-Teller (BET) surface area of 92.18 m/g was noticed for a catalyst composition containing 3% nickel loading. The scanning electron microscopy (SEM) studies revealed a smooth...

2017
Sandra Rodrigues da Silva Nilson J A de Albuquerque Rusiene M de Almeida Fabiane C de Abreu

This study concerns the development and charaterization of Silica-based aldehyde Chitosan hybrid material as an adsorbent for biodiesel purification. This biocomposite was prepared by sol-gel route and oxidation with periodate, and then characterized. FTIR experiments showed that the hybrid formed presents absorption bands similar to those of Chitosan-Silica, with the exception of the vibration...

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