catalytic oxidation of airborne toluene by using copper oxide supported on a modified natural diatomite

نویسندگان

seyed reza azimi pirsaraei

department of occupational health engineering, faculty of medical sciences, tarbiat modares university, p.o. box: 14115-111, tehran, iran. hasan asilian mahabadi

department of occupational health engineering, faculty of medical sciences, tarbiat modares university, p.o. box: 14115-111, tehran, iran. ahmad jonidi jafari

research center for environmental health technology, iran university of medical sciences, p.o box: 14665-354, tehran, iran.

چکیده

the catalytic oxidation of toluene over copper oxide supported on natural diatomite was investigated. the catalyst was prepared by the wet impregnation method and characterized by using the brunauer emmett teller (bet), field emission scanning electron microscopy (fesem), x-ray diffraction (xrd), x-ray fluorescence (xrf) and temperature-programmed reduction (tpr) analysis. the highest catalytic performance for airborne toluene oxidation was obtained at 14 wt% cu loading. the toluene conversion at 270°c and 380°c, were 50% and 90%, respectively. according to the results of gc/ms and formation the co2 in effluent gas, no intermediates such as co or other hydrocarbons were detected and the selectivity towards co2 was almost 100%.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Catalytic oxidation of airborne toluene by using copper oxide supported on a modified natural diatomite

The catalytic oxidation of toluene over copper oxide supported on natural diatomite was investigated. The catalyst was prepared by the wet impregnation method and characterized by using the Brunauer Emmett Teller (BET), field emission Scanning Electron Microscopy (FESEM), X-ray diffraction (XRD), X-ray fluorescence (XRF) and Temperature-programmed reduction (TPR) analysis. The highest catalytic ...

متن کامل

Catalytic oxidation of airborne toluene by using copper oxide supported on a modified natural diatomite

The catalytic oxidation of toluene over copper oxide supported on natural diatomite was investigated. The catalyst was prepared by the wet impregnation method and characterized by using the Brunauer Emmett Teller (BET), field emission Scanning Electron Microscopy (FESEM), X-ray diffraction (XRD), X-ray fluorescence (XRF) and Temperature-programmed reduction (TPR) analysis. The highest catalytic ...

متن کامل

catalytic oxidation of carbon monoxide using copper-zinc mixed oxide nanoparticles supported on diatomite

background diatomite coated by nanoparticles of copper and zinc mixed oxides were used to investigate catalytic oxidation of carbon monoxide. objectives aim of this paper was to investigatediatomite performance as a supporting host to confine the cuo and zno nanoparticles and its catalytic activity for carbon monoxide oxidation. materials and methods the prepared catalysts were characterized by...

متن کامل

Catalytic Oxidation of 4-Methylpyridine on Modified Vanadium Oxide Catalysts

The reaction of gas-phase oxidation of 4-methylpyridine on individual V2O5, binary and ternary vanadium-oxide catalysts was studied. These catalysts were modified by additives of SnO2 and TiO2. It was found that modifying V2O5 leads to increase the activity of binary contacts. Upon transition from binary V2O5<...

متن کامل

Catalytic Oxidation of Carbon Monoxide by Cobalt Oxide Catalysts Supported on Oxidized-MWCNT

Cobalt oxide catalysts supported on oxidized multi-walled carbon nanotubes (MWCNT) for the low-temperature catalytic oxidation of carbon monoxide were prepared by an impregnation-ultrasound method. These catalysts were characterized by N2 adsorption/desorption, TEM, XRD, Raman, and H2-TPR methods. The XRD and Raman results indicated that the phase of the synthesized cobalt...

متن کامل

اکسیداسیون کاتالیتیکی مونوکسید کربن با استفاده از نانوذرات اکسید مس تثبیت شده بر روی دیاتومیت

  Background and aims: Carbon monoxide (CO) is a highly toxic, colorless, and odorless gas with a density close to the air, which is produced by natural processes and anthropogenic sources and is well known for its potential harmful and poisonous effects on humans. Inhalation of carbon monoxide gas can impair the heart and central nervous system. Diatomite supported nano copper oxide catalyst w...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
iranian journal of catalysis

جلد ۶، شماره ۵، صفحات ۴۳۱-۴۳۸

کلمات کلیدی

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023