synthesis, characterization and photocatalytic activity of ceo2-sba-15

Authors

hamid reza pouretedal

sara basati

abstract

mesoporous photocatalysts of ceo2/sba-15 are prepared by two methods of direct synthesis as solvent-usage and solvent-free methods. in solvent-usage method, ceo2/sba-15 is synthesized in acidic media. while, in solvent-free method, ceo2/sba-15, has been prepared through the novel path of directly grind cerium salt into the as-prepared samples of sba-15 occluded with template. this method enables a large amount of cerium to be highly dispersed in the channels of mesoporous silica, also saves time and energy. the resulting composites exhibit photocatalytic activity, and the dispersed ceo2 in sba-15 illustrates a photodegradation of congo red (cr) in aqueous solution. x-ray powder diffraction, n2 adsorption-desorption and ft-ir spectroscopy are used to characterize the prepared materials.

Upgrade to premium to download articles

Already have an account?login

similar resources

Synthesis, characterization and photocatalytic activity of CeO2-SBA-15

Mesoporous photocatalysts of CeO2/SBA-15 are prepared by two methods of direct synthesis as solvent-usage and solvent-free methods. In solvent-usage method, CeO2/SBA-15 is synthesized in acidic media. While, in solvent-free method, CeO2/SBA-15, has been prepared through the novel path of directly grind cerium salt into the as-prepared samples of SBA-15 occluded ...

full text

Synthesis, characterization and photocatalytic activity of CeO2-SBA-15

full text

Characterization and Photocatalytic Activity of ZnO, ZnS, ZnO/ZnS, CdO, CdS and CdO/CdS Nanoparticles in Mesoporous SBA-15

Grinding (solvent-free) method was used as a superior technique to prepare mesoporous photocatalysts of ZnO, ZnS, ZnO / ZnS, CdO, CdS and CdO / CdS-SBA-15. In this technique, the nitrate, acetate and chloride salts of zinc and/or cadmium were grinded with as-synthesized SBA-15 as a mesoporous material. The controllable sulfurationis was used to prepare ZnS, ZnO/ZnS, CdS and CdO/CdS-SBA-15 a...

full text

synthesis and characterization of some macrocyclic schiff bases

ماکروسیکلهای شیف باز از اهمیت زیادی در شیمی آلی و دارویی برخوردار می باشند. این ماکروسیکلها با دارابودن گروه های مناسب در مکانهای مناسب می توانند فلزاتی مثل مس، نیکل و ... را در حفره های خود به دام انداخته، کمپلکسهای پایدار تولید نمایند. در این پایان نامه ابتدا یک دی آلدئید آروماتیک از گلیسیرین تهیه می شود و در مرحله بعدی واکنش با دی آمینهای آروماتیک و یا آلیفاتیک در رقتهای بسیار زیاد منجر به ت...

15 صفحه اول

Synthesis and Characterization of CeO2 Nanoparticles via Solution Combustion Method for Photocatalytic and Antibacterial Activity Studies

CeO2 nanoparticles have been proven to be competent photocatalysts for environmental applications because of their strong redox ability, nontoxicity, long-term stability, and low cost. We have synthesized CeO2 nanoparticles via solution combustion method using ceric ammonium nitrate as an oxidizer and ethylenediaminetetraacetic acid (EDTA) as fuel at 450 °C. These nanoparticles exhibit good pho...

full text

characterization and photocatalytic activity of zno, zns, zno/zns, cdo, cds and cdo/cds nanoparticles in mesoporous sba-15

grinding (solvent-free) method was used as a superior technique to prepare mesoporous photocatalysts of zno, zns, zno / zns, cdo, cds and cdo / cds-sba-15. in this technique, the nitrate, acetate and chloride salts of zinc and/or cadmium were grinded with as-synthesized sba-15 as a mesoporous material. the controllable sulfurationis was used to prepare zns, zno/zns, cds and cdo/cds-sba-15 at te...

full text

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}

Journal title:

iranian journal of catalysis

Publisher: islamic azad university, shahreza branch

ISSN 2252-0236

volume 2

issue 2 2012

Keywords

[ ' c e o 2 ' , ' s b a ' , 1 5 , ' p h o t o c a t a l y s t ' , ' c o n g o r e d ( c r ) ' , ' n a n o p a r t i c l e s ' ]

Hosted on Doprax cloud platform doprax.com