Facile synthesis of porous hybrid materials based on Calix-3 dye and TiO2 for high photocatalytic water splitting performance with excellent stability

2019 ◽  
Vol 7 (7) ◽  
pp. 2993-2999 ◽  
Author(s):  
Jian-Feng Huang ◽  
Jun-Min Liu ◽  
Li-Min Xiao ◽  
Yu-Hui Zhong ◽  
Liang Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Hybrid Materials ◽  
Hybrid Material ◽  
Sol Gel ◽  
Pt Nanoparticles ◽  
Facile Synthesis ◽  
Gel Method ◽  
Photocatalytic Water Splitting ◽  
First Time ◽  
Excellent Stability

A highly robust hybrid material Calix-3-TiO2 based on calixarene dye and TiO2 is prepared by a facile sol–gel method for the first time. When Pt nanoparticles are introduced onto the hybrid, the catalysts display efficient and persistent photocatalytic water splitting activities.

Design of an alkaline pyridyl acceptor-based calix[4]arene dye and synthesis of stable calixarene–TiO2 porous hybrid materials for efficient photocatalysis

2020 ◽  
Vol 8 (18) ◽  
pp. 8883-8891 ◽  
Author(s):  
Yu-Hui Zhong ◽  
Yang Lei ◽  
Jian-Feng Huang ◽  
Li-Min Xiao ◽  
Xin-Lun Chen ◽  
...  
Keyword(s):  
Hybrid Materials ◽  
Hybrid Material ◽  
Sol Gel ◽  
Pt Nanoparticles ◽  
Rhenium Complexes ◽  
Gel Method ◽  
Sol Gel Method ◽  
Photocatalytic Activities

A porous hybrid material C4BTP–TiO2 has been prepared by a sol–gel method. When Pt nanoparticles or rhenium complexes are loaded, the hybrids show expandable photocatalytic activities for H2 evolution from water and CO2 reduction to CO, respectively.

Synthesis of PCEC-CaO-SiO2 Hybrid Materials by Sol-Gel Method

2014 ◽  
Vol 898 ◽  
pp. 37-40
Author(s):  
Xiao Tian Ke ◽  
Cao Huang ◽  
Jin Ling Zhang ◽  
Gang Wu
Keyword(s):  
Compressive Strength ◽  
Hybrid Materials ◽  
Hybrid Material ◽  
Sol Gel ◽  
Brittle Crack ◽  
Gel Method ◽  
Sol Gel Method ◽  
Organic Components ◽  
End Groups

PCEC-CaO-SiO2hybrid material was synthesized by a two steps method. FTIR results proved the structure of the telechelic PCEC with triethoxysilane-propyl end groups synthesized in the first step. Then the PCEC-CaO-SiO2hybrid material was synthesized by Sol-gel method. The chemical link between the functionalized polymer and the organic components prevent the hybrid materials brittle crack. The compressive strength was increased with the inorganic contents increasing in the hybrid materials. The hydrophilic PEG contents of PCEC accelerate the hydroxyapatite deposition on the hybrid materials after it was soaked in the SBF for a period of time.

Enhanced photocatalytic water splitting hydrogen production on RuO2/La:NaTaO3 prepared by sol–gel method

2010 ◽  
Vol 12 (4) ◽  
pp. 268-272 ◽  
Author(s):  
L.M. Torres-Martínez ◽  
R. Gómez ◽  
O. Vázquez-Cuchillo ◽  
I. Juárez-Ramírez ◽  
A. Cruz-López ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Water Splitting ◽  
Sol Gel ◽  
Gel Method ◽  
Photocatalytic Water Splitting ◽  
Sol Gel Method

Tailoring the diameter of electrospun layered perovskite nanofibers for photocatalytic water splitting

2018 ◽  
Vol 6 (5) ◽  
pp. 1971-1978 ◽  
Author(s):  
André Bloesser ◽  
Pascal Voepel ◽  
Marc O. Loeh ◽  
Andreas Beyer ◽  
Kerstin Volz ◽  
...  
Keyword(s):  
Water Splitting ◽  
Fiber Diameter ◽  
Layered Perovskite ◽  
Photocatalytic Water Splitting ◽  
Nanofiber Diameter ◽  
First Time

Electrospun layered perovskite Ba5Ta4O15 nanofibers are varied in their diameter for the first time by the identification of electrospinning setup parameters controlling the resulting nanofiber diameter. The influence of fiber diameter on photocatalytic water splitting activity is revealed.

Synthesis, crystal structure and photoluminescence properties of Eu2+-activated RbCaGd(PO4)2 phosphors

RSC Advances ◽  
2016 ◽  
Vol 6 (14) ◽  
pp. 11211-11217 ◽  
Author(s):  
Xue Chen ◽  
Qidi Wang ◽  
Fengzhu Lv ◽  
Paul K. Chu ◽  
Yihe Zhang
Keyword(s):  
Crystal Structure ◽  
Sol Gel ◽  
Dipole Interaction ◽  
Concentration Quenching ◽  
Photoluminescence Properties ◽  
Gel Method ◽  
Sol Gel Method ◽  
First Time

RbCaGd(PO4)2:Eu2+ was prepared by the Pechini-type sol–gel method. The crystal structure was determined in the first time. The dipole–dipole interaction plays a major role in the mechanism of concentration quenching of Eu2+ in this phosphor.

Synthesis of an Organic–Inorganic Alq3-Based Hybrid Material by Sol–Gel Method

2014 ◽  
Vol 25 (4) ◽  
pp. 680-686 ◽  
Author(s):  
Sina Modiri ◽  
Mohsen Mohseni ◽  
Ezzedin Mohajerani ◽  
Elaheh Kowsari
Keyword(s):  
Hybrid Material ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method

DIFFERENT MORPHOLOGIES OFTiO2NANOSTRUCTURES IN ACIDIC AND BASIC SOL–GEL METHOD

NANO ◽  
2010 ◽  
Vol 05 (05) ◽  
pp. 279-285 ◽  
Author(s):  
M. H. IMANIEH ◽  
Y. VAHIDSHAD ◽  
P. NOURPOUR ◽  
S. SHAKESI ◽  
K. SHABANI
Keyword(s):  
Ph Value ◽  
Sol Gel ◽  
Simple Method ◽  
Gel Method ◽  
Sol Gel Method ◽  
New Process ◽  
Nanocrystalline Titanium ◽  
Acidic Conditions ◽  
Nanocrystalline Titanium Dioxide ◽  
First Time

In this research, nanocrystalline titanium dioxide (TiO2) particles were prepared by a modified alkoxide technique under basic and acidic conditions at room temperatures. A simple method for preparing different morphology of TiO2has been developed. The reaction condition was used to control the crystalline size, phase and morphology of the TiO2nanostructures. In this process by adjusting the Rw(water to precursor ratio) and pH value the hydrolysis and condensation reactions were controlled. This led to the development of a new process to produce TiO2nanorod (for the first time by sol–gel method) at high pH value (basic) while the water content was sufficient whereas at low pH value (acidic) nanosphere TiO2were obtained. The powders were characterized by DTA, XRD, FE-SEM and UV–vis techniques and their physical properties were compared.

Preparation and the PL Properties of Er3+ - Ce3+ Co-Doped TiO2 Powders

2014 ◽  
Vol 528 ◽  
pp. 30-33
Author(s):  
Ling Yun Bai ◽  
Long Fa Jiang ◽  
Jun Huai Xiang
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Hybrid Matrix ◽  
Peak Intensity ◽  
Dispersion Effects ◽  
Co Doped

The 0.5-3.0 mol% Er3+-Ce3+ co-doped TiO2 powders have been prepared by sintering the hybrid materials Er0.5Ce0.5(AA)3phen-doped TiO2/PMMA, which were prepared by sol-gel method, using the modified titanium (IV) n-butoxide [Ti(O-Bu)4-x(AAPhen)x] as precursors which were given by the chelate reaction between Ti(O-Bu)4, AA and Phen at 70°C. The hybrid matrix TiO2/PMMA improved the dispersion of Er3+, which caused an enhancement in the photoluminescence (PL) peak intensity at 1.53 mm of the 1 mol% Er (AA)3phen-doped TiO2/PMMA powders sintered at 700 °C of about 23 times higher than that only had TiO2 as its matrix. When co-doped with Ce3+, the above ratio of the PL peak intensity was raised to 75 times, which illustrated the obvious sensitization and dispersion effects of Ce3+ on Er3+.

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