ZnO nanorods modified with noble metal-free Co3O4 nanoparticles as a photocatalyst for efficient ethylene degradation under light irradiation

2019 ◽  
Vol 9 (21) ◽  
pp. 6191-6198 ◽  
Author(s):  
Zihao Cui ◽  
Xiaolei Liu ◽  
Xizhuang Liang ◽  
Peng Wang ◽  
Qianqian Zhang ◽  
...  
Keyword(s):  
Noble Metal ◽  
High Efficiency ◽  
Zno Nanorods ◽  
Light Irradiation ◽  
Good Stability ◽  
Co3o4 Nanoparticles ◽  
Simple Method ◽  
Metal Free

ZnO modified with noble metal-free Co3O4 nanoparticles was prepared by a simple method and showed good stability and high efficiency for photo-oxidizing ethylene.

Noble-metal-free Ni3N/g-C3N4 photocatalysts with enhanced hydrogen production under visible light irradiation

2018 ◽  
Vol 47 (35) ◽  
pp. 12188-12196 ◽  
Author(s):  
Lu Chen ◽  
Huijuan Huang ◽  
Yuanhui Zheng ◽  
Wenhao Sun ◽  
Yi Zhao ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Visible Light ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Photocatalytic Hydrogen Evolution ◽  
Metal Free

Noble-metal-free Ni3N/g-C3N4 heterojunctions that show high photocatalytic hydrogen evolution activity comparable to platinized g-C3N4 were successfully synthesized.

A non-noble metal MoS2–Cd0.5Zn0.5S photocatalyst with efficient activity for high H2 evolution under visible light irradiation

2016 ◽  
Vol 4 (1) ◽  
pp. 193-199 ◽  
Author(s):  
Shaojian Zhao ◽  
Junjian Huang ◽  
Qiuyue Huo ◽  
Xiaozhou Zhou ◽  
Weixia Tu
Keyword(s):  
Visible Light ◽  
Noble Metal ◽  
Solid Solutions ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Evolution Rate ◽  
H2 Evolution ◽  
Metal Free ◽  
Highly Active

ZnxCd1−xS solid solutions with uniform sizes and shapes were synthesized. Subsequent loading of MoS2 to one solution yielded a highly-active MoS2–Cd0.5Zn0.5S noble-metal-free photocatalyst; the highest H2 evolution rate was 12.30 mmol h−1 g−1 from water under visible light irradiation.

Visible light driven hydrogen evolution with a noble metal free CuGa2In3S8 nanoparticle system in water

2016 ◽  
Vol 6 (17) ◽  
pp. 6536-6541 ◽  
Author(s):  
Tarek A. Kandiel ◽  
Georgina A. M. Hutton ◽  
Erwin Reisner
Keyword(s):  
Visible Light ◽  
Hydrogen Evolution ◽  
Noble Metal ◽  
Visible Light Irradiation ◽  
Precious Metals ◽  
Light Irradiation ◽  
Metal Free ◽  
Visible Light Driven ◽  
Nanoparticle System

Visible light irradiation of CGIS nanoparticles with a Ni salt displayed superior sacrificial H2 evolution activity than when employing the precious metals Pt, Rh and Ru.

scholarly journals Facile Synthesis of Amorphous C3N4ZnxOy (x, y = 0.32–1.10) with High Photocatalytic Efficiency for Antibiotic Degradation

Catalysts ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 514
Author(s):  
Ran Zhang ◽  
Jing Xian Dong ◽  
Guo Liang Gao ◽  
Xue Lu Wang ◽  
Ye-Feng Yao
Keyword(s):  
Noble Metal ◽  
Amorphous Materials ◽  
High Efficiency ◽  
Amorphous State ◽  
Amorphous Structure ◽  
Photocatalytic Efficiency ◽  
Metal Free ◽  
Synthetic Strategy ◽  
Photocatalytic Reactions ◽  
Antibiotic Degradation

The development of novel, noble metal-free semiconductor catalysts with high efficiency is of great importance for the degradation of organic compounds. Among them, amorphous materials have been extensively studied for their unique and commercially useful properties. Here, a completely amorphous, noble metal-free photocatalyst C3N4ZnxOy (x, y = 0.32–1.10) was successfully synthesized from urea and ZnO by a simple high-temperature polymerization method. As the Zn content increased, the short-range ordered structures of the amorphous samples were still retained, as revealed by XPS, FTIR, and ssNMR. Meanwhile, the -CN3 structures were observed to be gradually destroyed, which may make the amorphous state more favorable for photocatalytic reactions. Compared with g-C3N4, the amorphous samples showed significantly reduced intensities in the photoluminescence spectra, indicating that the recombination rate of the photo-generated charge carriers was greatly reduced. It was confirmed that the optimized sample (C3N4Zn0.61O0.61) achieved a photocatalytic efficiency of 86.1% in the degradation of tetracycline hydrochloride under visible light irradiation within 1 h. This is about 2 times higher than that of both g-C3N4 and ZnO. This study emphasizes the importance of the amorphous structure in photocatalytic reactions, and this synthetic strategy may provide an effective model for designing other novel catalysts.

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