Sol-gel synthesis of DyCrO3 and 10% Fe-doped DyCrO3 nanoparticles with enhanced photocatalytic hydrogen production abilities

被引:29
作者
Ahsan, Ragib [1 ,2 ]
Mitra, Avijit [1 ,2 ]
Omar, Saleh [1 ,2 ]
Khan, Md. Ziaur Rahman [1 ]
Basith, M. A. [2 ]
机构
[1] Bangladesh Univ Engn & Technol, Dept Elect & Elect Engn, Dhaka 1205, Bangladesh
[2] Bangladesh Univ Engn & Technol, Dept Phys, Dhaka 1000, Bangladesh
关键词
VISIBLE-LIGHT IRRADIATION; SHOCKLEY-QUEISSER LIMIT; PARTICLE-SIZE; MAGNETIC-STRUCTURE; RHODAMINE-B; CELLS; WATER; TIO2; EFFICIENCY; ZNO;
D O I
10.1039/c8ra01585f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
DyCrO3 and 10% Fe-doped DyCrO3 nanoparticles have been synthesized using a sol-gel method to investigate their performance in photocatalytic hydrogen production from water. The synthesized nanoparticles have been characterized by performing X-ray diffraction, energy dispersive X-ray spectroscopy and UV-visible spectrophotometric measurements. In addition, field emission scanning electron microscopy has been performed to observe their size and shape. The Fe-doped DyCrO3 nanoparticles show a significantly smaller band gap of 2.45 eV compared to the band gap of 2.82 eV shown by the DyCrO3 nanoparticles. The Fe-doped DyCrO3 nanoparticles show better photocatalytic activity in the degradation of rhodamine B (RhB) compared to the photocatalytic activity shown by both the DyCrO3 and Degussa P25 titania nanoparticles. The recycling and reuse of Fe-doped DyCrO3 four times for the photo-degradation of RhB shows that Fe-doped DyCrO3 is a stable and reusable photocatalyst. To evaluate the extent of the photocatalytic hydrogen production ability of the synthesized nanoparticles, a theoretical model has been developed to determine their absorptance, a measure of the ability to absorb photons. Finally, 10% Fe-doped DyCrO3 proves itself to be an efficient photocatalyst as it demonstrated three times greater hydrogen production than Degussa P25.
引用
收藏
页码:14258 / 14267
页数:10
相关论文
共 60 条
[1]   THE USE OF IONIZATION POTENTIALS .1. IONIC RADII OF THE ELEMENTS [J].
AHRENS, LH .
GEOCHIMICA ET COSMOCHIMICA ACTA, 1952, 2 (03) :155-169
[2]   Determination of optical band gap of powder-form nanomaterials with improved accuracy [J].
Ahsan, Ragib ;
Khan, Md. Ziaur Rahman ;
Basith, Mohammed Abdul .
JOURNAL OF NANOPHOTONICS, 2017, 11 (04)
[3]   Photocatalytic Hydrogen Production with Tunable Nanorod Heterostructures [J].
Amirav, Lilac ;
Alivisatos, A. Paul .
JOURNAL OF PHYSICAL CHEMISTRY LETTERS, 2010, 1 (07) :1051-1054
[4]   PHOTOCATALYTIC HYDROGENATION OF CH3CCH WITH H2O ON SMALL-PARTICLE TIO2 - SIZE QUANTIZATION EFFECTS AND REACTION INTERMEDIATES [J].
ANPO, M ;
SHIMA, T ;
KODAMA, S ;
KUBOKAWA, Y .
JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (16) :4305-4310
[5]   Thermal energy storage coupled with PV panels for demand side management of industrial building cooling loads [J].
Arteconi, Alessia ;
Ciarrocchi, Eleonora ;
Pan, Quanwen ;
Carducci, Francesco ;
Comodi, Gabriele ;
Polonara, Fabio ;
Wang, Ruzhu .
APPLIED ENERGY, 2017, 185 :1984-1993
[6]   Preparation of high crystalline nanoparticles of rare-earth based complex pervoskites and comparison of their structural and magnetic properties with bulk counterparts [J].
Basith, M. A. ;
Islam, M. A. ;
Ahmmad, Bashir ;
Hossain, M. D. Sarowar ;
Molhave, K. .
MATERIALS RESEARCH EXPRESS, 2017, 4 (07)
[7]   Room temperature dielectric and magnetic properties of Gd and Ti co-doped BiFeO3 ceramics [J].
Basith, M. A. ;
Kurni, O. ;
Alam, M. S. ;
Sinha, B. L. ;
Ahmmad, Bashir .
JOURNAL OF APPLIED PHYSICS, 2014, 115 (02)
[8]   MAGNETIC STRUCTURE OF DYCRO3 [J].
BERTAUT, EF ;
MARESCHA.J .
JOURNAL DE PHYSIQUE, 1968, 29 (01) :67-&
[9]   Photodegradation of Rhodamine B over Ag modified ferroelectric BaTiO3 under simulated solar light: pathways and mechanism [J].
Cui, Yongfei ;
Goldup, Stephen M. ;
Dunn, Steve .
RSC ADVANCES, 2015, 5 (38) :30372-30379
[10]  
Deng Jinyi., 2011, J FUNDAMENTALS RENEW, V1, P1, DOI DOI 10.4303/JFREA/R101204