Copper(II) phthalocyanine tetrasulfonate sensitized nanocrystalline titania photocatalyst: Synthesis in situ and photocatalysis under visible light

2006 ◽  
Vol 7 (8) ◽  
pp. 518-522 ◽  
Author(s):  
Zhiyu Wang ◽  
Weiping Mao ◽  
Haifeng Chen ◽  
Fuan Zhang ◽  
Xianping Fan ◽  
...  
2021 ◽  
Author(s):  
Changquan Zhang ◽  
Chaolin Li ◽  
Gang Chen ◽  
Fei Ji ◽  
Yiyong Shen ◽  
...  

Sulfate radical based photocatalysis is recognized as an effective approach for the photodegradation of organic pollutants in wastewater. To overcome the defects of weak visible light absorptivity and low catalytic...


2021 ◽  
Vol 4 (1) ◽  
Author(s):  
Makoto Ozaki ◽  
Takahito Imai ◽  
Takaaki Tsuruoka ◽  
Shungo Sakashita ◽  
Kin-ya Tomizaki ◽  
...  

AbstractBiomineralization, the precipitation of various inorganic compounds in biological systems, can be regulated in terms of the size, morphology, and crystal structure of these compounds by biomolecules such as proteins and peptides. However, it is difficult to construct complex inorganic nanostructures because they precipitate randomly in solution. Here, we report that the elemental composition of inorganic nanocomposites can be controlled by site-specific mineralization by changing the number of two inorganic-precipitating peptides bound to DNA. With a focus on gold and titania, we constructed a gold-titania photocatalyst that responds to visible light excitation. Both microscale and macroscale observations revealed that the elemental composition of this gold-titania nanocomposite can be controlled in several ten nm by changing the DNA length and the number of peptide binding sites on the DNA. Furthermore, photocatalytic activity and cell death induction effect under visible light (>450 nm) irradiation of the manufactured gold-titania nanocomposite was higher than that of commercial gold-titania and titania. Thus, we have succeeded in forming titania precipitates on a DNA terminus and gold precipitates site-specifically on double-stranded DNA as intended. Such nanometer-scale control of biomineralization represent a powerful and efficient tool for use in nanotechnology, electronics, ecology, medical science, and biotechnology.


2021 ◽  
Vol 9 (4) ◽  
pp. 105560
Author(s):  
Krishnan Divakaran ◽  
Amanulla Baishnisha ◽  
Vellaichamy Balakumar ◽  
Krishnan Nattamai Perumal ◽  
Chandran Meenakshi ◽  
...  

2019 ◽  
Vol 43 (44) ◽  
pp. 17416-17422 ◽  
Author(s):  
Huaqiang Zhuang ◽  
Zhenping Cai ◽  
Wentao Xu ◽  
Mianli Huang ◽  
Xiaobin Liu

A WO3/g-C3N4 composite photocatalyst with 2D–2D heterostructure was designed and constructed by an in situ preparation strategy.


Author(s):  
Amanulla Baishnisha ◽  
Krishnan Divakaran ◽  
Vellaichamy Balakumar ◽  
Venkidusamy Sasirekha ◽  
Chandran Meenakshi ◽  
...  

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