نتایج جستجو برای: Absorption isotherms

تعداد نتایج: 136704  

Journal: :Molecules 2013
Jorge Marquez-Escalante Elizabeth Carvajal-Millan Mario Miki-Yoshida Lorena Alvarez-Contreras Alma Rosa Toledo-Guillén Jaime Lizardi-Mendoza Agustín Rascón-Chu

Water extractable arabinoxylan (WEAX) aerogels were prepared by extracting the solvent from the alcogels (WEAX hydrogels with an alcohol as the solvent) with carbon dioxide under supercritical conditions. WEAX aerogels were characterized using scanning electron microscopy and adsorption and desorption nitrogen isotherms. The micrographs indicate a heterogeneous porous network structure in WEAX ...

ژورنال: طلوع بهداشت یزد 2016
رضایی, شیما, ملکوتیان, محمد,

Introduction: Colored Wastewater due to various environmental problems should be treated before discharge to the environment. Colors have many variety and different methods used for color wastewater treatment, the most widely methods that used is the absorption process by the low-cost adsorbent. To determine the isotherms and kinetics adsorption Process, absorption of methylene blue cationic dy...

2017
Rachel Steinhardt Stanley C. Hiew Hemakesh Mohapatra Du Nguyen Zachary Oh Richard Truong Aaron Esser-Kahn

Designing new liquids for CO2 absorption is a challenge in CO2 removal. Here, achieving low regeneration energies while keeping high selectivity and large capacity are current challenges. Recent cooperative metal-organic frameworks have shown the potential to address many of these challenges. However, many absorbent systems and designs rely on liquid capture agents. We present herein a liquid a...

ژورنال: :international journal of new chemistry 0

the aim of this study is to verify the amount of nitrate absorption on latium composite over active carbon in which ph parameters, temperature, pollutant concentration, contact time for absorbent were considered. it was determined that optimum condition for absorbent are ph=3, t= 0 ˚c and initial concentration of solution=10 ppm, then absorption parameters verified and after drawing  absorption...

2012
David G. Abrecht Brent Fultz W. M. Keck

The solid state complex [Mn(CO)dppe2][BArF] was synthesized and the thermodynamic behavior and properties of the hydrogen absorption reaction to form the dihydrogen complex [Mn(η-H2)dppe2][BArF] were measured over the temperature range 313K-373K and pressure range 0–600 torr using the Sieverts method. The absorption behavior was accurately described by Langmuir isotherms, and enthalpy and entro...

Masumeh Ghaleh Ghobadi Peyman Moradi Reza Bari

The aim of this study is to verify the amount of nitrate absorption on Latium composite over active carbon in which pH parameters, temperature, pollutant concentration, contact time for absorbent were considered. It was determined that optimum condition for absorbent are pH=3, T= 0 ˚C and initial concentration of solution=10 ppm, then absorption parameters verified and after drawing  absorption...

بلارک, داوود, دیانتی تیلکی, رمضانعلی, یزدانی چراتی, جمشید, یوسفی, ذبیح اله ,

Background and purpose: Phenol whose carcinogenic property has been evidenced is one the organic compounds found in industrial wastewater. Therefore, this effluent must be treated before it is discharged to the environment. The aim of this study was to investigate whether dried azolla can absorb phenol from aqueous solution. Materials and methods: First, the collected azolla was washed by dis...

Journal: :Dalton transactions 2012
Mohammad Mahdi Najafpour Babak Pashaei

Nanoscale manganese oxides within Faujasite zeolite have been synthesized with a simple method and characterized by scanning electron microscopy, X-ray diffraction spectrometry, N(2) adsorption-desorption isotherms, transmission electron microscopy, and atomic absorption spectroscopy. These oxides showed efficient water oxidizing activity in the presence of cerium(IV) ammonium nitrate as a non-...

Journal: :Chemical communications 2009
Hirokazu Kobayashi Miho Yamauchi Ryuichi Ikeda Hiroshi Kitagawa

Size-controlled atomic-level Pd-Au alloy nanoparticles have been synthesized with a wide range of atomic ratios by a facile method using H2 gas, and their controllable hydrogen-absorption properties have been studied from hydrogen pressure-composition isotherms and solid-state 2H NMR spectra.

دیانتی نیلکی , رمضان علی, شریعت , محمود, ناصری , سیمین,

Background and purpose: Çadmium is one of the toxic elements which contaminate water resources through industrial, domestic, agricultural effluents and un hygienic burdening of industrial and urban waste materials. Studies shows that surface and subsurface waters in some areas near to the pollutant sources are contaminated with cadmium 0.1 to 1.0 mg/l. No study has been done about omiting the...

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