Morphology-controlled synthesis of SrTiO3/TiO2 heterostructures and their photocatalytic performance for water splitting

RSC Advances ◽  
2016 ◽  
Vol 6 (25) ◽  
pp. 21111-21118 ◽  
Author(s):  
Minh Ngoc Ha ◽  
Feng Zhu ◽  
Zhifu Liu ◽  
Lichao Wang ◽  
Linyan Liu ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photocatalytic Performance ◽  
Hydrothermal Process ◽  
Controlled Synthesis ◽  
Facile Hydrothermal Process

Different morphologies of SrTiO3/TiO2 heterostructures like nanocubes, nanoparticles, nanospheres, and nanofibers were synthesized via a facile hydrothermal process, using TiO2 as both a template and precursor in Sr(OH)2 solution.

Enhanced photocatalytic performance of NaNbO3 nanorods by loading Al2O3 nanoparticles

2020 ◽  
Vol 34 (30) ◽  
pp. 2050339
Author(s):  
Hetian Xia ◽  
Yu Zhao ◽  
Weili Li ◽  
Ruixuan Song ◽  
Yulei Zhang ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Electric Fields ◽  
Photocatalytic Performance ◽  
Hydrothermal Process ◽  
Photocurrent Density ◽  
Al2o3 Nanoparticles ◽  
Photocatalytic Efficiency ◽  
Photoelectrochemical Activity ◽  
Degradation Ratio ◽  
Facile Hydrothermal Process

Herein, we report the fabrication of UV-active NaNbO3/Al2O3 (30 wt.%) ferroelectric heterojunction photocatalyst with enhanced photoelectrochemical activity to Methylene Blue (MB). Pure NaNbO3 nanorods (NRs) were synthesized by a facile hydrothermal process and NaNbO3/Al2O3 composite was prepared by an ultrasonic vibration method. The heterostructures showed a remarkable increase in photocurrent density and the MB degradation ratio reached 88% in the initial 15 min and eventually reached 98.6% in 75 min. The high photocatalytic efficiency is attributed to the ferroelectric polarization of NaNbO3 with the forming of heterojunction electric fields assisted by Al2O3. These properties demonstrate that NaNbO3/Al2O3 ferroelectric heterojunction photocatalyst shows promising photoactivity and provides an effective method to improve the photocatalytic properties of other ferroelectrics.

Size-controlled synthesis of hematite mesocrystals

CrystEngComm ◽  
2016 ◽  
Vol 18 (5) ◽  
pp. 754-758 ◽  
Author(s):  
Kay He ◽  
Bin Song ◽  
Lingtong Zhan ◽  
Wangwei Lu ◽  
Jin Li ◽  
...  
Keyword(s):  
Hydrothermal Process ◽  
Controlled Synthesis ◽  
Forced Hydrolysis ◽  
Hydrolysis Of ◽  
Size Controlled ◽  
Facile Hydrothermal Process

Size-controlled hematite mesocrystals were prepared by forced hydrolysis of FeCl3via a facile hydrothermal process.

scholarly journals Decoration of TiO2/g-C3N4 Z-scheme by carbon dots as a novel photocatalyst with improved visible-light photocatalytic performance for the degradation of enrofloxacin

RSC Advances ◽  
2017 ◽  
Vol 7 (54) ◽  
pp. 34096-34103 ◽  
Author(s):  
Yuehan Su ◽  
Ping Chen ◽  
Fengliang Wang ◽  
Qianxin Zhang ◽  
Tiansheng Chen ◽  
...  
Keyword(s):  
Visible Light ◽  
Carbon Dots ◽  
Photocatalytic Performance ◽  
Hydrothermal Process ◽  
Characterization Methods ◽  
Visible Light Driven ◽  
Facile Hydrothermal Process ◽  
Visible Light Photocatalytic

A novel visible-light-driven CDs/TiO2/g-C3N4 photocatalyst was successfully synthesized by doping CDs in TiO2 nanoparticles and the surface of g-C3N4 nanosheets via a facile hydrothermal process and was confirmed by characterization methods.

One-step synthesis of CoO/g-C3N4 composites by thermal decomposition for overall water splitting without sacrificial reagents

2017 ◽  
Vol 4 (10) ◽  
pp. 1691-1696 ◽  
Author(s):  
Mumei Han ◽  
Huibo Wang ◽  
Siqi Zhao ◽  
Lulu Hu ◽  
Hui Huang ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Visible Light ◽  
Water Splitting ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Light Irradiation ◽  
Overall Water Splitting ◽  
One Step ◽  
Good Photocatalytic Performance

10%CoO/g-C3N4 exhibits good photocatalytic performance under visible light irradiation without any sacrificial reagents.

scholarly journals One-step synthesis of OH-TiO 2 /TiOF 2 nanohybrids and their enhanced solar light photocatalytic performance

2018 ◽  
Vol 5 (6) ◽  
pp. 172005 ◽  
Author(s):  
Chentao Hou ◽  
Wenli Liu
Keyword(s):  
Electron Microscopy ◽  
Photocatalytic Performance ◽  
Performance Enhancement ◽  
Hydrothermal Process ◽  
Emission Spectra ◽  
Solar Light ◽  
Dominant Factor ◽  
Simulated Solar Light ◽  
Transmission Electron ◽  
Naoh Treatment

TiO 2 /TiOF 2 nanohybrids were quickly synthesized through a hydrothermal process using titanium n-butoxide (TBOT), ethanol (C 2 H 5 OH) and hydrofluoric acid as precursors. The prepared nanohybrids underwent additional NaOH treatment (OH-TiO 2 /TiOF 2 ) to enhance their photocatalytic performance. In this paper, the mechanism of NaOH affecting the pathway of transformation from TBOT (Ti precursor) to TiO 2 nanosheets was discussed. The synthesized TiO 2 /TiOF 2 and OH-TiO 2 /TiOF 2 were characterized by field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction pattern (XRD), Fourier infrared spectroscopic analysis (FT-IR), Photoluminescence (PL) emission spectra and UV–visible diffuse reflection spectra (UV–vis DRS). The photocatalytic activity and stability of synthesized samples were evaluated by degradation of methylene blue (MB) under the simulated solar light. The results showed that a larger ratio of TiO 2 to TiOF 2 in TiO 2 /TiOF 2 and OH-TiO 2 /TiOF 2 nanohybrids could allow for even higher MB conversion compared with only TiO 2 nanosheets. NaOH treatment can wash off the F ions from TiOF 2 and induce this larger ratio. The highest efficiency of MB removal was just above 90% in 1 h. Lower electron–hole pairs recombination rate is the dominant factor that induces the photocatalytic performance enhancement of TiO 2 /TiOF 2 nanohybrids. The synthesized OH-TiO 2 /TiOF 2 nanohybrids exhibit great potential in the abatement of organic pollutants.

Preparation of Mesoporous InVO4 Photocatalyst and Its Photocatalytic Performance for Water Splitting

2006 ◽  
Vol 27 (2) ◽  
pp. 100-102 ◽  
Author(s):  
Lixian XU ◽  
Lixia SANG ◽  
Chongfang MA ◽  
Yuanwei LU ◽  
Feng WANG ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photocatalytic Performance

Morphological control of RGO/CdS hydrogels for energy storage

CrystEngComm ◽  
2016 ◽  
Vol 18 (7) ◽  
pp. 1090-1095 ◽  
Author(s):  
Xueyu Zhang ◽  
Xin Ge ◽  
Shihan Sun ◽  
Yuanduo Qu ◽  
Wenzhong Chi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Hydrothermal Process ◽  
Morphology Control ◽  
Electrochemical Energy Storage ◽  
Morphological Control ◽  
3D Structures ◽  
Facile Hydrothermal Process ◽  
Electrochemical Energy

This paper investigated the preparation of 3D RGO/CdS hydrogels by a facile hydrothermal process, the morphology control of CdS (ball-like, rod-like, needle-like) in 3D structures, and their application in electrochemical energy storage.

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