synthesize and characterization of aminosilane functionalized mcm-41 for removal of anionic dye: kinetic and thermodynamic study

Authors

ali torabinejad

department of textile engineering, yazd branch, islamic azad university, yazd, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) navid nasirizadeh

department of textile engineering, qaemshahr branch, islamic azad university, qaemshahr, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch)

abstract

in this study, removal of acid blue 62 from aqueous solution by mesoporous silicate mcm-41 modified by aminopropyltriethoxysilane (aptes) composite was studied. properties of synthesized composite were analyzed and confirmed by sem, edx and ftir. results show that langmuir adsorption isotherm has the best compatibility with the results of experiments. kinetic analysis using pseudo-first-order model, pseudo-second-order and the intra-particle diffusion model was carried out. results also confirmed that adsorption process is compatible with the pseudo-second-order kinetic model. thermodynamic parameters such as gibbs free energy changes (δgo), enthalpy changes (δho) and entropy changes (δso) were calculated. negative value of δgo and positive value of δho show that adsorption of acid blue 62 on aminated nanocomposite is a spontaneous process also endothermic.

Upgrade to premium to download articles

Already have an account?login

similar resources

Synthesize and characterization of Aminosilane functionalized MCM-41 for removal of anionic dye: Kinetic and thermodynamic study

In this study, removal of Acid blue 62 from aqueous solution by mesoporous silicate MCM-41 modified by Aminopropyltriethoxysilane (APTES) composite was studied. Properties of synthesized composite were analyzed and confirmed by SEM, EDX and FTIR. Results show that Langmuir adsorption isotherm has the best compatibility with the results of experiments. Kinetic analysis using pseudo-first-order m...

full text

Synthesize and characterization of Aminosilane functionalized MCM-41 for removal of anionic dye: Kinetic and thermodynamic study

full text

preparation and characterization of new co-fe and fe-mn nano catalysts using resol phenolic resin and response surface methodology study for fischer-tropsch synthesis

کاتالیزورهای co-fe-resol/sio2و fe-mn-resol/sio2 با استفاده از روش ساده و ارزان قیمت همرسوبی تهیه شدند. از رزین پلیمری resol در فرآیند تهیه کاتالیزور استفاده شد.

Kinetic studies of Pb and Ni adsorption onto MCM-41 amine-functionalized nano particle

In the current investigation a novel nano hybrid adsorbent MCM-41/N-(3-trimethoxysilyl)-propyl)diethylenetriamine (MCM-41/TMSPDETA) was prepared and was characterized using DLS (Dynamic Light Scattering), Fourier Transform Infrared (FTIR), X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET) analytical techniques and Transmission electron microscopy (TEM). The synthesized MCM-41/TMSPDETA adsor...

full text

the study of practical and theoretical foundation of credit risk and its coverage

پس از بررسی هر کدام از فاکتورهای نوع صنعت, نوع ضمانت نامه, نرخ بهره , نرخ تورم, ریسک اعتباری کشورها, کارمزد, ریکاوری, gdp, پوشش و وثیقه بر ریسک اعتباری صندوق ضمانت صادرات ایران مشخص گردید که همه فاکتورها به استثنای ریسک اعتباری کشورها و کارمزد بقیه فاکتورها رابطه معناداری با ریسک اعتباری دارند در ضمن نرخ بهره , نرخ تورم, ریکاوری, و نوع صنعت و ریسک کشورها اثر عکس روی ریسک اعتباری داردو پوشش, وثی...

15 صفحه اول

study and characterization of fiber optical gyroscope مطالعه و مشخصه یابی ژیروسکوپ فیبر نوری(تار نوری)

ژیروسکوپ فیبر نوری fog بر اساس پدیده تداخل ساگنام دو پرتو لیزری از یک فیبر نوری بسیار طولانی داده های لازم را فراهم می آورد

15 صفحه اول

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}

Journal title:

international journal of nano dimension

جلد ۷، شماره ۴، صفحات ۲۹۵-۳۰۷

Keywords

[ ' a c i d b l u e 6 2 ' , ' a d s o r p t i o n ' , ' a d s o r p t i o n i s o t h e r m ' , ' a d s o r p t i o n k i n e t i c ' , ' m c m ' , 4 1 ]

Hosted on Doprax cloud platform doprax.com