نتایج جستجو برای: adsorption property

تعداد نتایج: 212411  

Journal: :تحقیقات نظام سلامت 0
امیر رضا طلایی عضو هیات علمی، گروه مهندسی عمران- محیط زیست، موسسه آموزش عالی جامی، اصفهان، ایران. مرضیه باقری کارشناس ارشد و عضو هیأت علمی، گروه مهندسی صنایع شیمیایی، مؤسسه آموزش عالی جامی، اصفهان، ایران. سمیرا قطبی نسب کارشناس، گروه مهندسی صنایع شیمیایی، مؤسسه آموزش عالی جامی، اصفهان، ایران. محمد رضا طلایی دانشیار، گروه مهندسی شیمی، دانشکده مهندسی، دانشگاه اصفهان، اصفهان، ایران.

background: one of the pollutant components that can be observed in many industrial wastewaters is formaldehyde. the biological treatment of the wastewater contaminated by formaldehyde is very difficult due to its antibacterial property. however the removal of formaldehyde using adsorption process is feasible but it may be expensive. the main purpose of this study is to examine the adsorption o...

Journal: :physical chemistry research 0
nosrat madadi mahani payam noor university

first principles calculations were carried out for investigation the novel 7-hydroxycoumarinyl gallates derivatives in gas and liquid phases using density functional theory (dft) method. computational chemistry simulations were carried out to compare calculated quantum chemical parameters for gallates derivatives. all calculations were performed using dmol3 code which is based on dft. the doubl...

2014
SAADI SAAIDPOUR

Quantitative structure-property relationship (QSPR) for estimating the adsorption of aliphatic alcohols onto activated carbon were developed using substructural molecular fragments (SMF) method. The adsorption capacity of activated carbon (gr/100grC) for 150 aliphatic alcohols onto activated carbon (AC) is studied under equilibrium conditions. Forward and backwards stepwise regression variable ...

2015
Shintaro Kawano Toshiyuki Kida Mitsuru Akashi Hirofumi Sato Motohiro Shizuma Daisuke Ono

BACKGROUND Emulsions stabilized by colloidal particles are known as Pickering emulsions. To date, soft microgel particles as well as inorganic and organic particles have been utilized as Pickering emulsifiers. Although cyclodextrin (CD) works as an attractive emulsion stabilizer through the formation of a CD-oil complex at the oil-water interface, a high concentration of CD is normally required...

Journal: :physical chemistry research 0
hossein roohi department of chemistry university of guilan mahjobeh jahantab university of guilan

the monitoring and controlling of environmental pollutions are very important in biological and industrial processes, and a great interest is growing with the development of suitable gas–sensitive materials and hazardous chemical removal devices. in this work, the highly parameterized, empirical exchange–correlation functional m06–2x were employed to investigate the electronic sensitivity of pe...

Journal: :Scientific reports 2016
Nadiya B Nayak Bibhuti B Nayak

Aqueous sodium borohydride (NaBH4) is well known for its reducing property and well-established for the development of metal nanoparticles through reduction method. In contrary, this research paper discloses the importance of aqueous NaBH4 as a precipitating agent towards development of porous zirconium oxide. The boron species present in aqueous NaBH4 play an active role during gelation as wel...

2016
Xiao-Qiong Li

The application of biodegradable chitosan fiber for healthy and hygienic textiles is limited due to its poor acid resistance in wet processing and poor antioxidant activity. In order to prepare chitosan fiber with good acid resistance and high antioxidant activity, chitosan fiber was first crosslinked by a water-soluble aziridine crosslinker, and then dyed with natural lac dye consisting of pol...

2011
Claudio Alister Manuel Araya Marcelo Kogan

C. Alister, M. Araya, and M. Kogan. 2011. Effects of physicochemical soil properties of five agricultural soils on herbicide soil adsorption and leaching. Cien. Inv. Agr. 38(2): 243-251. Once pesticides reach the soil, there are several factors that affect their soil behavior. To identify the principal soil and herbicide properties that control their adsorption and leaching, a study of five Chi...

Introduction: The development of an effective method regarding chromium removal from the environment is of great importance. Therefore, the present study aimed to examiner magnetic nanoparticles coated with alumina modified by Cetyl Trimethyl Ammonium Bromide (CTAB) in the removal of Cr6+ through magnetic solid phase extraction method. Materials & Methods: At first, iron oxide nanoparticles ...

2009
Venkatathri Narayanan

A new procedure is reported to synthesis mesoporous silica micro sphere for the first time. In these method two surfactants namely Span 80 and Tween 80 were used. Small angle X ray diffraction and N2 adsorption analysis shows the synthesized material has mesoporous property. The material has spherical morphology with 1-10 μm particle size. Beside the material found to have microcapsule property...

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