Facile preparation of yolk–shell structured Si/SiC@C@TiO2 nanocomposites as highly efficient photocatalysts for degrading organic dye in wastewater

RSC Advances ◽  
2016 ◽  
Vol 6 (5) ◽  
pp. 4063-4069 ◽  
Author(s):  
Mei-Pin Liu ◽  
Tingting Su ◽  
Lin Sun ◽  
Hong-Bin Du

The prepared yolk–shell Si/SiC@C@TiO2 nanospheres show a strong photon absorbance throughout the visible light region, and excellent photocatalytic performance for degrading methyl blue in water under UV and visible light irradiation.

2020 ◽  
Vol 10 (6) ◽  
pp. 1609-1618 ◽  
Author(s):  
Chao Zhang ◽  
Jiandong Liu ◽  
Xingliang Liu ◽  
Shiai Xu

Reaction mechanism for the higher photocatalytic performance of H2 production of g-C3N4NSs/TC1 under visible light irradiation (λ ≥ 400 nm).


RSC Advances ◽  
2014 ◽  
Vol 4 (110) ◽  
pp. 64747-64755 ◽  
Author(s):  
Xuefeng Xu ◽  
Man Wang ◽  
Yanyan Pei ◽  
Changchun Ai ◽  
Liangjie Yuan

The micro/nano-structure composite SiO2@Ag/AgCl was employed as a low cost photocatalyst for the degradation of RhB in aqueous solution under visible light irradiation, which exhibited excellent photocatalytic performance and stability.


RSC Advances ◽  
2019 ◽  
Vol 9 (24) ◽  
pp. 13787-13796 ◽  
Author(s):  
Jinyang Zhang ◽  
Fuyan Kang ◽  
Hao Peng ◽  
Jing Wen ◽  
Xiaogang Zheng

Ag-loaded Cu0.25Zn0.75S (Ag/Cu0.25Zn0.75S) photocatalysts were synthesized for the photodegradation of organic pollutants such as rhodamine B (RhB), methyl violet (MV) and ciprofloxacin hydrochloride (CIP) under visible-light irradiation.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Fu Su ◽  
Pengpeng Li ◽  
Jianshu Huang ◽  
Meijuan Gu ◽  
Zhiying Liu ◽  
...  

AbstractIn this work, CeO2 nanosheets decorated with Ag2O and AgBr are successfully fabricated via a simple sediment-precipitation method. The as-prepared ternary Ag2O/AgBr–CeO2 composite with double Z-scheme construction was analyzed by various analytical techniques. Ag nanoparticles (NPs) used as the electron medium could reduce the recombination of photoelectrons and holes, thus leading to the improvement of photocatalytic performance of these catalysts. Due to the unique structure and composite advantages, the optimal Ag2O/AgBr–CeO2 photocatalysts exhibit the superior tetracycline (TC) degradation efficiency of 93.23% and favorable stability with near-initial capacity under visible light irradiation. This ternary Z-scheme structure materials will be the well-promising photocatalysts or the purification of antibiotic wastewater.


2018 ◽  
Vol 6 (46) ◽  
pp. 23703-23711 ◽  
Author(s):  
Yan Gong ◽  
Bo Yang ◽  
Hui Zhang ◽  
Xu Zhao

Heterostructured composites with outstanding photocatalytic performance have attracted intense attention because of their great potential for use in environmental remediation.


Materials ◽  
2018 ◽  
Vol 11 (2) ◽  
pp. 267 ◽  
Author(s):  
Lu Cai ◽  
Jiuyan Gong ◽  
Jianshe Liu ◽  
Hailong Zhang ◽  
Wendong Song ◽  
...  

2014 ◽  
Vol 50 (39) ◽  
pp. 5037-5039 ◽  
Author(s):  
Chao Kong ◽  
Shixiong Min ◽  
Gongxuan Lu

Amorphous cobalt tin composite oxides decorated graphene nanohybrid exhibited excellent photocatalytic performance for hydrogen evolution under visible light irradiation.


2021 ◽  
Vol 10 (3) ◽  
pp. xx-xx
Author(s):  
Lan Nguyen Thi ◽  
Mai Nguyen Thi Tuyet ◽  
Hue Dang Thi Minh ◽  
Huyen Tran Thi Thu ◽  
Nga Nguyen Kim ◽  
...  

These experiment fabricated C3N4 powdermaterials by the calcinational method and fabricated Cu2O, Cu2O-3%C3N4, Cu2O-5%C3N4 nanomaterials by the hydrothermal method. The powdermaterials characteristics were studied by methods such as: X-ray diffraction (XRD); raman shift; scanning electron microscope (SEM); UV-vis solid absorption spectra. The photocatalytic activity of samples was studied by decomposition of methylene blue dye under visible light radiation. The results showed that the fabricated C3N4 sample was single phase with high porosity cotton structure. The Cu2O, Cu2O-3%C3N4 andCu2O-5%C3N4 samples had octahedral crystal structure with the crystal particle size was about 200-300 nm. The C3N4 doped Cu2O samples had octahedral crystal particles arranged more closely than that of Cu2O and filled in gaps by cotton, porous clusters of C3N4. The materials all had the absorption spectra expanded in the visible light region (l» 450-900 nm). The C3N4 doped Cu2O samples achieved the better photocatalytic efficiency than Cu2O and C3N4 samples in visible light region. The highest photocatalytic efficiency achieved 100% was of the Cu2O-3%C3N4 sample in the photodegradation of methylene blue dye after 30 minutes under visible light irradiation.


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