Synthesis of pure and doped SnO2 and NiO nanoparticles and evaluation of their photocatalytic activity

ZnO nanowhiskers were used for photodecomposition of methylene blue in aqueous solution under UV irradiation. The rate of methylene blue degradation increased linearly with time of UV irradiation. 54% of degradation rate was observed when the ZnO nanowhiskers were used as photocatalysts for methylene blue degradation for 80 min under UV irradiation. The decoration of p-type NiO nanoparticles on n-type ZnO nanowhiskers significantly enhanced photocatalytic activity and reached 72% degradation rate of methylene blue by using the same method. NiO-decorated ZnO was recycled for second test and shows 66% degradation from maximal peak of methylene blue within the same period. The increment of photocatalytic activity of NiO-decorated ZnO nanowhiskers was explained by the extension of the electron depletion layer due to the formation of nanoscale p-n junctions between p-type NiO and n-type ZnO. Hence, these products provide new alternative proficient photocatalysts for wastewater treatment.

Download Full-text

Sub-3nm NiO nanoparticles: Controlled synthesis, and photocatalytic activity

Materials Letters ◽

10.1016/j.matlet.2012.05.029 ◽

2012 ◽

Vol 81 ◽

pp. 245-247 ◽

Cited By ~ 23

Author(s):

Hanning Duan ◽

Xianfeng Zheng ◽

Songliu Yuan ◽

Yu Li ◽

Zhaoming Tian ◽

...

Keyword(s):

Photocatalytic Activity ◽

Controlled Synthesis ◽

Nio Nanoparticles

Download Full-text

An ultrasound-assisted deposition of NiO nanoparticles on TiO2 nanotube arrays for enhanced photocatalytic activity

Journal of Materials Chemistry A ◽

10.1039/c4ta00850b ◽

2014 ◽

Vol 2 (22) ◽

pp. 8223 ◽

Cited By ~ 61

Author(s):

Zhi Wu ◽

Yingying Wang ◽

Lan Sun ◽

Yuxiao Mao ◽

Mengye Wang ◽

...

Keyword(s):

Photocatalytic Activity ◽

Tio2 Nanotube Arrays ◽

Tio2 Nanotube ◽

Nanotube Arrays ◽

Nio Nanoparticles ◽

Ultrasound Assisted

Download Full-text

Effects of catalyst characters on the photocatalytic activity and process of NiO nanoparticles in the degradation of methylene blue

Applied Surface Science ◽

10.1016/j.apsusc.2013.03.126 ◽

2013 ◽

Vol 277 ◽

pp. 40-46 ◽

Cited By ~ 56

Author(s):

Xia Wan ◽

Meng Yuan ◽

Shao-long Tie ◽

Sheng Lan

Keyword(s):

Methylene Blue ◽

Photocatalytic Activity ◽

Nio Nanoparticles

Download Full-text

Synthesis, Characterization and Enhanced visible light induced photocatalytic activity of NiO/g-C3N4 nanocomposite

10.21203/rs.3.rs-298371/v1 ◽

2021 ◽

Author(s):

M. Gayathri ◽

N. Jayaprakssh ◽

Sundaravadivel E

Keyword(s):

Thermal Decomposition ◽

Photocatalytic Activity ◽

Visible Light ◽

Visible Light Irradiation ◽

Rhodamine B ◽

Carbon Nitride ◽

Decomposition Methods ◽

Nio Nanoparticles ◽

Vis Spectroscopy ◽

Potential Strategy

Abstract Heterogeneous binary nanocomposite based photocatalysis is a potential strategy to resolve the worldwide ecological issues. Here, graphitic carbon nitride (g-C3N4) containing NiOnanocomposite (NC) was synthesized by simple mixing. Pure NiO and g-C3N4 was synthesised by hydrothermal and thermal decomposition methods respectively. As synthesized g-C3N4, NiO, and NiO/g-C3N4, composite were characterized by XRD, FTIR, UV-vis spectroscopy, FE-SEM, and HR-TEM. NiO nanoparticles were uniformly distributed on C3N4 matrix. Photocatalytic degradation of Rhodamine B (RhB) was investigated under visible light irradiation. The results confirm that 81% of RhB was degraded within 60 min under NiO/g-C3N4 visible light system. This study suggests that potential in environmental applications.

Download Full-text