In2O3 cubes: synthesis, characterization and photocatalytic properties

RSC Advances ◽  
2014 ◽  
Vol 4 (59) ◽  
pp. 31353-31361 ◽  
Author(s):  
Sheng-qi Guo ◽  
Xiao Zhang ◽  
Zhen-wei Hao ◽  
Guan-dao Gao ◽  
Guang Li ◽  
...  
Keyword(s):  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Photocatalytic Properties

Two-step prepare of In2O3 cubes, which have excellent photocatalytic performance for degeneration of organic dyes.

scholarly journals From Adsorbent to Photocatalyst: The Sensitization Effect of SnO2 Surface towards Dye Photodecomposition

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7123
Author(s):  
Kinga Michalec ◽  
Anna Kusior
Keyword(s):  
Structural Changes ◽  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Indigo Carmine ◽  
Dye Adsorption ◽  
Chemical Conversion ◽  
Photocatalytic Properties ◽  
Hydrodynamic Diameter ◽  
Micro Structure ◽  
Adsorption Desorption

Semiconductor photocatalysis is considered one of the most promising technologies for water purification from toxic organic dyes. However, to reliably evaluate the possibility of using a given material as a photocatalyst, it is crucial to investigate not only the photocatalytic activity but also its affinity towards various dyes and reusability. In this work, we studied the adsorptive/photocatalytic properties of hollow-spherical raspberry-like SnO2 and its SnO2/SnS2 heterostructures that were obtained via a chemical conversion method using three different concentrations of a sulfide precursor (thioacetamide). The adsorptive/photocatalytic properties of the samples towards cationic rhodamine B (RhB) and anionic indigo carmine (IC) were analyzed using uncommon wall zeta potential measurements, hydrodynamic diameter studies, and adsorption/photodecomposition tests. Moreover, after conducting cyclic experiments, we investigated the (micro)structural changes of the reused photocatalysts by scanning electron microscopy and Fourier-transform infrared spectroscopy. The obtained results revealed that the sensitization of SnO2 resulted not only in the significantly enhanced photocatalytic performance of the heterostructures, but also completely changed their affinity towards dyes. Furthermore, despite the seemingly best photocatalytic performance, the sample with the highest SnS2 content was unstable due to its (micro)structure. This work demonstrates that dye adsorption/desorption processes may overlap the results of cyclic photodecomposition kinetics.

3D/2D Bi2S3/SnS2 Heterostructures: Superior Charge Separation and Enhanced Solar Light Driven Photocatalytic Performance

CrystEngComm ◽  
2021 ◽  
Author(s):  
Sumana Paul ◽  
Dulal Barman ◽  
Chandra Chowdhury ◽  
Pravat Kumar Giri ◽  
Subodh Kumar De
Keyword(s):  
Charge Separation ◽  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Solar Light ◽  
Toxic Ions

In promoting the application of green and sustainable solution towards the photodegradation of organic dyes and toxic ions, it is urgent to fabricate semiconductor based effective and stable photocatalysts. Constructing...

ARCHITECTURE OF FLOWER-LIKE rGO/CNTs-LOADED CuxO NANOPARTICLES AND ITS PHOTOCATALYTIC PROPERTIES

NANO ◽  
2013 ◽  
Vol 08 (05) ◽  
pp. 1350052 ◽  
Author(s):  
BIN ZENG ◽  
XIAOHUA CHEN ◽  
XUTAO NING ◽  
CHUANSHENG CHEN ◽  
HUI LONG
Keyword(s):  
Electron Microscopy ◽  
Photocatalytic Performance ◽  
Degradation Process ◽  
Photocatalytic Properties ◽  
High Concentration ◽  
Graphene Oxides ◽  
Transmission Electron ◽  
Time Scanning ◽  
Reduced Graphene ◽  
First Time

Novel flower-like composite architecture was successfully synthesized by spray drying and post-calcinating method for the first time. Scanning electron microscopy and transmission electron microscopy observations confirmed that reduced graphene oxides/carbon nanotubes hybrid (rGO/CNTs) formed a flower-like micrometer structure and Cu2O , CuO ( Cu x O , x = 1 or 2) nanoparticles were decorated inside them. The photocatalytic properties were further investigated by evaluating the photodegradation of a pollutant methyl orange (MO). The experimental results indicated that this novel architecture enhanced photocatalytic performance with 96.2% decomposition of MO after 25 min in the presence of H 2 O 2 under visible light irradiation, which was much higher than that of Cu x O powders (33.2%). This could be attributed to the more efficient adsorption of MO molecules on flower-like rGO/CNTs and provide a high concentration of MO near to the Cu x O nanoparticles, thus promoting the photocatalytic degradation process.

Synthesis and Photocatalytic Properties of the Bi2MoO6 and Bi2WO6 Photocatalysts

2018 ◽  
Vol 768 ◽  
pp. 218-223
Author(s):  
Juan Xia ◽  
Lin Zhang ◽  
Qi Wang
Keyword(s):  
Light Absorption ◽  
Hydrothermal Reaction ◽  
Organic Dyes ◽  
High Surface ◽  
Diffuse Reflectance Spectrum ◽  
High Surface Area ◽  
Photocatalytic Properties ◽  
X Ray Diffraction ◽  
Electron Hole ◽  
One Pot

Two different Bi-based semiconductor photocatalysts Bi2MoO6 and Bi2WO6 were synthesized by a simple one-pot hydrothermal reaction at 453 K for 10 h. The properties of the photocatalysts, including structures, morphology, light-absorption band and photoluminescence, etc were characterized by X-ray diffraction, scanning electron microscopy, UV-Vis diffuse reflectance spectrum and fluorescence spectrum. Further, their photocatalytic properties were compared by the degradation of two different organic dyes: Rhodamine B and methylene blue. It is important to note that the Bi2WO6 nanoplate structure exhibited better photocatalytic activity than the Bi2MoO6 nanowires aggregates due to its high surface area, higher light absorption and lower recombination of electron-hole pairs.

scholarly journals Microscale flower-like magnesium oxide for highly efficient photocatalytic degradation of organic dyes in aqueous solution

RSC Advances ◽  
2019 ◽  
Vol 9 (13) ◽  
pp. 7338-7348 ◽  
Author(s):  
Yajun Zheng ◽  
Liyun Cao ◽  
Gaoxuan Xing ◽  
Zongquan Bai ◽  
Jianfeng Huang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photocatalytic Degradation ◽  
Magnesium Oxide ◽  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Precipitation Method ◽  
Highly Efficient

Flower-like MgO microparticles with excellent photocatalytic performance in degradation of various organic dyes were synthesized by a facile precipitation method via the reaction between Mg2+ and CO32− at 70 °C.

Facile synthesis of ternary Ti3C2–OH/ln2S3/CdS composite with efficient adsorption and photocatalytic performance towards organic dyes

2019 ◽  
Vol 280 ◽  
pp. 120981 ◽  
Author(s):  
Hongjun Fang ◽  
Yusong Pan ◽  
Minyun Yin ◽  
Linfeng Xu ◽  
Yuan Zhu ◽  
...  
Keyword(s):  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Facile Synthesis

A new Zn(ii)-based 3D metal–organic framework with uncommon sev topology and its photocatalytic properties for the degradation of organic dyes

CrystEngComm ◽  
2019 ◽  
Vol 21 (31) ◽  
pp. 4578-4585 ◽  
Author(s):  
Ying Pan ◽  
Qiongjie Ding ◽  
Hongjia Xu ◽  
Chunyue Shi ◽  
Amita Singh ◽  
...  
Keyword(s):  
Rhodamine B ◽  
Organic Dyes ◽  
Metal Organic Framework ◽  
Methyl Violet ◽  
Photocatalytic Properties ◽  
Metal Organic ◽  
Organic Framework

A new Zn(ii) based 3D MOF having uncommon sev topology synthesized and used as efficient photocatalyst for the photodegradation of dyes methyl violet and rhodamine B.

Ce-/S-codoped TiO2/Sulfonated graphene for photocatalytic degradation of organic dyes

2014 ◽  
Vol 2 (33) ◽  
pp. 13565-13570 ◽  
Author(s):  
Yingying Fan ◽  
Dongxue Han ◽  
Bin Cai ◽  
Weiguang Ma ◽  
Mohsin Javed ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Photocatalytic Performance ◽  
Organic Dyes ◽  
Synergistic Effects ◽  
Composite Action ◽  
Codoped Tio2 ◽  
Sulfonated Graphene

An improved photocatalytic performance of Ce/S–TiO2/SGE based on the synergistic effects of Ce- and S-codoping and the composite action between TiO2 NPs and SGE.

scholarly journals Synthesis, structure, magnetism and photocatalysis of α-Fe2O3 nanosnowflakes

RSC Advances ◽  
2019 ◽  
Vol 9 (61) ◽  
pp. 35372-35383 ◽  
Author(s):  
Fang Wang ◽  
Le Xin Song ◽  
Yue Teng ◽  
Juan Xia ◽  
Zhe Yuan Xu ◽  
...  
Keyword(s):  
Photocatalytic Performance ◽  
Organic Dyes

α-Fe2O3 nanosnowflakes exhibit enhanced coercivity and improved photocatalytic performance for organic dyes.

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