Surfactant-free NH4TiOF3 Crystals: Self-assembly on Solid Surfaces and Room-temperature Hydrolysis for Hollow TiO2 Structures with High Photocatalytic Activity

2015 ◽  
Vol 44 (5) ◽  
pp. 604-606 ◽  
Author(s):  
Hack-Keun Lee ◽  
Seung-Woo Lee
Keyword(s):  
Photocatalytic Activity ◽  
Self Assembly ◽  
Room Temperature ◽  
High Photocatalytic Activity ◽  
Solid Surfaces

Photoluminescence and photocatalytic activity of a 3D framework based on 4,4′-bis(1,2,4-triazol-1-ylmethyl)biphenyl as a ligand for cadmium

2019 ◽  
Vol 74 (7-8) ◽  
pp. 553-558
Author(s):  
Chen Zhang ◽  
Ning-Ning Chen ◽  
Jian-Qing Tao
Keyword(s):  
Thermal Analysis ◽  
Photocatalytic Activity ◽  
Phthalic Acid ◽  
Room Temperature ◽  
Three Dimensional ◽  
High Photocatalytic Activity ◽  
X Ray Diffraction ◽  
X Ray ◽  
Coordination Framework ◽  
3D Framework

AbstractA novel three-dimensional Cd(II) coordination framework, [Cd(PTA)(BTBP)0.5 · H2O]n (1) (BTBP =  4,4′-bis(1,2,4-triazol-1-ylmethyl)biphenyl; H2PTA = p-phthalic acid), has been prepared and characterized through IR spectroscopy, elemental and thermal analysis, and single-crystal X-ray diffraction. The complex is a 5-connected network with the {45 · 66} topology based on Cd-μ2-H2O-Cd chains. It exhibits strong fluorescent emission in the solid state at room temperature. Moreover, complex 1 shows high photocatalytic activity in the degradation of methylene blue under UV irradiation.

scholarly journals Ni-Doped Protonated Layered Titanate/TiO2 Composite with Efficient Photocatalytic Activity for NO x Decomposition Reactions

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Kanji Saito ◽  
Shota Orikasa ◽  
Yusuke Asakura ◽  
Yusuke Ide ◽  
Yoshiyuki Sugahara ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Solid State ◽  
Room Temperature ◽  
High Photocatalytic Activity ◽  
Solid State Reactions ◽  
Decomposition Reactions ◽  
Ni Content ◽  
Layered Titanate ◽  
Different Temperatures ◽  
Lower Temperature

A unique structural transformation of a lepidocrocite-type layered titanate, K0.8Ti1.73Li0.27O4, into a rutile-type TiO2 has recently been realized via dilute HCl treatment and subsequent drying at room temperature for producing rutile-nanoparticle-decorated protonated layered titanate exhibiting highly efficient photocatalytic activity. Herein, the authors report synthesis of a lepidocrocite-type layered cesium titanate with nominal compositions of C s 0.7 T i 1.825 ‐ x / 2 N i x □ 0.175 ‐ x / 2 O 4 ( x = 0 , 0.05, 0.1, and 0.35) through solid-state reactions of Cs2CO3, TiO2, and Ni(CH3COO)2·4H2O at different temperatures (600 or 800°C), followed by treatment with dilute HCl and subsequent drying to produce a Ni-doped protonated layered titanate/TiO2 composite. C s 0.7 T i 1.825 ‐ x / 2 N i x □ 0.175 ‐ x / 2 O 4 with an optimized Ni content obtained at a lower temperature was converted into a Ni-doped protonated layered titanate/TiO2 composite to exhibit high photocatalytic activity for NO x decomposition reactions.

Facile and Fast Deposition of Amorphous TiO2Film under Atmospheric Pressure and at Room Temperature, and its High Photocatalytic Activity under UV-C Light

2013 ◽  
Vol 20 (1-2-3) ◽  
pp. 8-13 ◽  
Author(s):  
Zhi-Guang Sun ◽  
Xiao-Song Li ◽  
Xiaobing Zhu ◽  
Xiao-Qing Deng ◽  
Da-Lei Chang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Atmospheric Pressure ◽  
Room Temperature ◽  
High Photocatalytic Activity ◽  
Uv C

scholarly journals Self-assembly of porphyrin on graphene oxide in aqueous medium: fabrication, characterization, and photocatalytic studies

2019 ◽  
Vol 18 (8) ◽  
pp. 2071-2079 ◽  
Author(s):  
Nagi El-Shafai ◽  
Mohamed E. El-Khouly ◽  
Maged El-Kemary ◽  
Mohamed S. Ramadan ◽  
Mamdouh S. Masoud
Keyword(s):  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
Visible Light ◽  
Aqueous Medium ◽  
Visible Light Irradiation ◽  
Self Assembly ◽  
High Photocatalytic Activity ◽  
Water Soluble ◽  
Dye Pollutants ◽  
Water Soluble Porphyrin

We reported herein the supramolecular self-assembly of a water soluble porphyrin TMPyP on the surface of graphene oxide and its high photocatalytic activity for degradation of mixed dye pollutants in water under visible light irradiation.

Preparation of Z-scheme AgI/Bi5O7I plate with high visible light photocatalytic performance by phase transition and morphological transformation of BiOI microspheres at room temperature

2018 ◽  
Vol 47 (33) ◽  
pp. 11420-11428 ◽  
Author(s):  
Nan Yang ◽  
Xiang Lv ◽  
Suting Zhong ◽  
Danlin Qian ◽  
Sujuan Han ◽  
...  
Keyword(s):  
Phase Transition ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Room Temperature ◽  
Photocatalytic Performance ◽  
Transformation Process ◽  
High Photocatalytic Activity ◽  
Morphological Transformation ◽  
Visible Light Photocatalytic

Z-scheme AgI/Bi5O7I plate composite fabricated at room temperature through phase transition and morphological transformation process with high photocatalytic activity.

Extremely high photocatalytic activity of polymer nanospheres embedded with CdS nanoparticles prepared by a novel method

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
Yuanpeng Wu ◽  
Yongyi Gao ◽  
Xiaobin Ding ◽  
Zhaohui Zheng ◽  
Yuxing Peng
Keyword(s):  
Photocatalytic Activity ◽  
Self Assembly ◽  
High Photocatalytic Activity ◽  
Assembly System ◽  
Cds Nanoparticles ◽  
Mercaptopropionic Acid ◽  
Convenient Route ◽  
Novel Method ◽  
Polymer Nanospheres

AbstractA novel, practicable and convenient route has been developed to prepare polymer nanospheres embedded with CdS nanoparticles which show an extremely high photocatalytic activity compared with other photocatalysts. In this method, polymer nanospheres were fabricated through the polymerization of cadmium dimethacrylate which was introduced into self-assembly system of chitosan and 3-mercaptopropionic acid. Then CdS nanoparticles were prepared insitu by inflating H2S into the polymer nanospheres.

Green synthesis of mixed metallic nanoparticles using room temperature self-assembly

2017 ◽  
Vol 13 (2) ◽  
pp. 4671-4677 ◽  
Author(s):  
A. M. Abdelghany ◽  
A.H. Oraby ◽  
Awatif A Hindi ◽  
Doaa M El-Nagar ◽  
Fathia S Alhakami
Keyword(s):  
Self Assembly ◽  
Metallic Nanoparticles ◽  
Room Temperature ◽  
Bimetallic Nanoparticles ◽  
Reduction Process ◽  
Nano Particles ◽  
Nano Structure ◽  
Small Shift ◽  
Molar Ratios ◽  
Vis Spectroscopy

Bimetallic nanoparticles of silver (Ag) and gold (Au) were synthesized at room temperature using Curcumin. Reduction process of silver and gold ions with different molar ratios leads to production of different nanostructures including alloys and core-shells. Produced nanoparticles were characterized simultaneously with FTIR, UV/vis. spectroscopy, transmission electron microscopy (TEM), and Energy-dispersive X-ray (EDAX). UV/vis. optical absorption spectra of as synthesized nanoparticles reveals presence of surface palsmon resonance (SPR) of both silver at (425 nm) and gold at (540 nm) with small shift and broadness of gold band after mixing with resucing and capping agent in natural extract which suggest presence of bimetallic nano structure (Au/Ag). FTIR and EDAX data approve the presence of bimetallic nano structure combined with curcumin extract. TEM micrographs shows that silver and gold can be synthesized separately in the form of nano particles using curcumin extract. Synthesis of gold nano particles in presence of silver effectively enhance and control formation of bi-metallic structure.

Sign in / Sign up

Export Citation Format

Share Document