scholarly journals MOF-derived Co/ZnO@silicalite-1 photocatalyst with high photocatalytic activity

RSC Advances ◽  
2017 ◽  
Vol 7 (61) ◽  
pp. 38519-38525 ◽  
Author(s):  
Xiaobing Yang ◽  
Juan Chen ◽  
Huixian Lai ◽  
Jiapeng Hu ◽  
Ming Fang ◽  
...  

Metal doped ZnO supported on porous materials have unique and highly attractive properties and have drawn worldwide attention.

Materials ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 3589
Author(s):  
Ping Rong ◽  
Shuai Ren ◽  
Jianchao Jiang ◽  
Qi Yu ◽  
Liyun Jiang ◽  
...  

A series of metal element (Al, Fe, Mg and Ni)-doped ZnO (M-ZnO) photocatalysts have been successfully synthesized on graphene-coated polyethylene terephthalate (GPET) flexible substrate via the hydrothermal method. The effects of doped metals in ZnO were also studied on the crystal structure, morphology and photocatalytic performance. The photocatalytic experiment results indicated that, compared with Al-, Mg- and Fe-ZnO/GPET photocatalysts under ultraviolet (UV) light irradiation, Ni-ZnO/GPET had better photocatalytic activity, and the degradation rate of methylene blue (MB) was 81.17%. Meanwhile, the mechanism of enhancing the photocatalytic activity of metal element-doped ZnO is also discussed. It is concluded that, after doping with metal elements, electrons and holes are prevented from recombination by trapping electrons of the ZnO/GPET conductive band, thereby improving the photocatalytic activity.


Optik ◽  
2019 ◽  
Vol 186 ◽  
pp. 34-40 ◽  
Author(s):  
Abdullah M. Alhanash ◽  
Khadija S. Al-Namshah ◽  
Sahar K. Mohamed ◽  
Mohamed S. Hamdy

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
S. Anandan ◽  
Y. Ikuma ◽  
V. Murugesan

Efficient La-doped TiO2photocatalysts were prepared by sol-gel method and extensively characterized by various sophisticated techniques. The photocatalytic activity of La-doped TiO2was evaluated for the degradation of monocrotophos (MCPs) in aqueous solution. It showed higher rate of degradation than pure TiO2for the light of wavelength of 254 nm and 365 nm. The rate constant of TiO2increases with increasing La loading and exhibits maximum rate for 1% La loading. The photocatalytic activities of La-doped TiO2are compared with La-doped ZnO; the reaction rate of the former is ~1.8 and 1.1 orders higher than the latter for the lights of wavelength 254 nm and 365 nm, respectively. The relative photonic efficiency of La-doped TiO2is relatively higher than La-doped ZnO and commercial photocatalysts. Overall, La-doped TiO2is the most active photocatalyst and shows high relative photonic efficiencies and high photocatalytic activity for the degradation of MCP. The enhanced photocatalytic activity of La-doped TiO2is mainly due to the electron trapping by lanthanum metal ions, small particle size, large surface area, and high surface roughness of the photocatalysts.


2014 ◽  
Vol 40 (7) ◽  
pp. 10375-10382 ◽  
Author(s):  
Yanqing Zong ◽  
Zhe Li ◽  
Xingmin Wang ◽  
Jiantao Ma ◽  
Yi Men

RSC Advances ◽  
2017 ◽  
Vol 7 (67) ◽  
pp. 42030-42035 ◽  
Author(s):  
Yanqiu Jing ◽  
Jianan Wang ◽  
Baohua Yu ◽  
Jin Lun ◽  
Yuyuan Cheng ◽  
...  

Today, metal doped ZnO exhibits good performances and attracts worldwide attention.


2014 ◽  
Vol 2 (29) ◽  
pp. 11040-11044 ◽  
Author(s):  
Jingpei Huo ◽  
Liting Fang ◽  
Yaling Lei ◽  
Gongchang Zeng ◽  
Heping Zeng

Yttrium and aluminum co-doped ZnO were successfully synthesized by the sol–gel method. The obtained products showed high photocatalytic activity for hydrogen production (5.71 mmol h−1 g−1), and exhibited excellent stability and recyclability.


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