scholarly journals Plasmonic W18O49-photosensitized TiO2 nanosheets with wide-range solar light harvesting

RSC Advances ◽  
2017 ◽  
Vol 7 (38) ◽  
pp. 23846-23850 ◽  
Author(s):  
Junfang Li ◽  
Wentao Li ◽  
Xinshi Li ◽  
Yahui Li ◽  
Hua Bai ◽  
...  

Plasmonic TiO2/W18O49 hybrid nanosheets have been synthesized through an in situ solvothermal growth method. This hybrid catalyst exhibits broad spectrum light harvesting and photocatalytic activity under full-spectrum, UV, visible, and NIR light.

Catalysts ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 557 ◽  
Author(s):  
Zhenzhen Li ◽  
Huabin Chen ◽  
Wenxia Liu

Deriving photocatalysts by the calcination of hydrotalcite-like compounds has attracted growing interest for extending their photocatalytic activity to the visible and even near-infrared (NIR) light regions. Herein, we describe the acquisition of a ZnO/CuO/ZnFe2O4 nanocomposite with good photoFenton-like catalytic activity under UV, visible and near-infrared (NIR) light irradiation by optimizing the calcination temperature of the coprecipitation product of Zn2+, Cu2+ and Fe3+. The ZnO/CuO/ZnFe2O4 nanocomposite is composed of symbiotic crystals of ZnO, CuO and ZnFe2O4, which enable the nanocomposite to show absorption in the UV, visible and NIR light regions and to produce a transient photocurrent in the presence of H2O2 under NIR irradiation. The full-spectrum photoFenton-like catalyst shows improved performance for the degradation of methyl orange with an increasing amount of H2O2 and is very stable in the recycling process. We believe that the ZnO/CuO/ZnFe2O4 nanocomposite is a promising full-spectrum photoFenton-like catalyst for the degradation of organic pollutants.


2019 ◽  
Vol 9 (2) ◽  
pp. 336-346 ◽  
Author(s):  
Jinjin Lin ◽  
Jiangshan Hu ◽  
Chengwei Qiu ◽  
Huijuan Huang ◽  
Lu Chen ◽  
...  

In situ fabricated CaTiO3/TiO2 heterojunction shows highly photocatalytic activity for reduction of CO2 to CO with H2O.


2021 ◽  
Author(s):  
Xiaojun Dai ◽  
sheng feng ◽  
Wei Wu ◽  
Yun Zhou ◽  
Zhiwei Ye ◽  
...  

Abstract In this paper, in order to improved the photocatalytic activity of Bi2WO6, Bi2WO6 and ZIF-8 were successfully combined by in-situ growth method for the first time. The addition of ZIF-8 effectively inhibited the recombination of photogenerated electron hole pairs and further improved the electron utilization efficiency, and superoxide anion was introduced to greatly improve the photocatalytic activity. The performance of Bi2WO6/ZIF-8 in the photodegradation of tetracycline (TC) was studied under different conditions of proportions of ZIF-8, dosage of catalyst and concentration of TC. The results indicated that B/Z/5/1 (10mg) had the best photocatalytic activity, and 97.8% of TC (20mg/L) could be degraded in 80 minutes under UV light, the rate constant (k) for TC degradation was almost 3 times that of Bi2WO6. The effects of pH, HA and inorganic anions on the degradation of TC were studied in simulated real water. Further, B/Z/5/1 could be reutilized up to five cycles without reduction of efficiency and catalysis performance. Therefore, Bi2WO6/ZIF-8 heterojunction composite material can be utilized as an efficient photocatalyst for remediation of environmental pollution.


2010 ◽  
Vol 55 (19) ◽  
pp. 1873-1878 ◽  
Author(s):  
明书 阳 ◽  
Feng WANG ◽  
YanFen DING ◽  
ShiMin ZHANG ◽  
ShaoRen YANG MingShu LIU ◽  
...  

2019 ◽  
Vol 7 (18) ◽  
pp. 5451-5460 ◽  
Author(s):  
Wubin Wu ◽  
Jingchao Wang ◽  
Tianyong Zhang ◽  
Shuang Jiang ◽  
Xiaoyuan Ma ◽  
...  

Several different fusiform-shaped Ag/AgCl@MIL-88A (ACML) materials with good photocatalytic activity were prepared successfully by using the in situ growth method.


2017 ◽  
Vol 7 (18) ◽  
pp. 4193-4205 ◽  
Author(s):  
Xiaolin Hu ◽  
Xiang Liu ◽  
Jian Tian ◽  
Yujie Li ◽  
Hongzhi Cui

We prepare an all-solid-state Z-scheme photocatalyst (RGO–Ag2O/TiO2 composites) for photocatalytic degradation of tetracycline under UV, visible and NIR light irradiation.


2020 ◽  
Vol 10 (12) ◽  
pp. 3843-3847 ◽  
Author(s):  
Jianqiang Hu ◽  
Fen Zhang ◽  
Yong Yang ◽  
Qiutong Han ◽  
Zhaosheng Li ◽  
...  

Novel Bi2S3 nanoribbon-anchored BiVO4 nanoscroll heterostructures were fabricated, showing enhanced photocatalytic activity for Cr(vi) reduction under UV-visible light illumination.


RSC Advances ◽  
2014 ◽  
Vol 4 (39) ◽  
pp. 20058-20061 ◽  
Author(s):  
Yanmei Yang ◽  
Yuanyuan Liu ◽  
Baibiao Huang ◽  
Rui Zhang ◽  
Ying Dai ◽  
...  

A novel BiVO4@β-AgVO3 composite synthesized by an in situ growth method on the surface of β-AgVO3 nanowires exhibited enhanced visible photocatalytic activity.


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