Fabrication of a well-aligned TiO2 nanofibrous membrane by modified parallel electrode configuration with enhanced photocatalytic performance

RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31476-31483 ◽  
Author(s):  
Jianan Wang ◽  
Guorui Yang ◽  
Ling Wang ◽  
Wei Yan
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Performance ◽  
Electrode Configuration ◽  
Nanofibrous Membrane ◽  
Excellent Photocatalytic Activity ◽  
Nanofibrous Membranes ◽  
Parallel Electrode

Well-aligned TiO2 nanofibrous membranes with excellent photocatalytic activity were prepared over large areas by a modified electrospinning configuration.

In situ synthesis of flexible hierarchical TiO2 nanofibrous membranes with enhanced photocatalytic activity

2015 ◽  
Vol 3 (44) ◽  
pp. 22136-22144 ◽  
Author(s):  
Renzhong Zhang ◽  
Xueqin Wang ◽  
Jun Song ◽  
Yang Si ◽  
Xingmin Zhuang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Organic Dyes ◽  
In Situ Synthesis ◽  
Electrospinning Technique ◽  
Excellent Photocatalytic Activity ◽  
Nanofibrous Membranes

Flexible hierarchical mesoporous TiO2 NP modified TiO2 nanofibrous membranes with excellent photocatalytic activity towards organic dyes were fabricated by the combination of an electrospinning technique and in situ polymerization.

Characteristic and photocatalytic performance of magnetic photocatalyst β-Bi2O3/MnxZn1−xFe2O4 synthesized by hydrothermal and calcination method

2021 ◽  
Author(s):  
Qiyuan Zhang ◽  
Yahan Yang ◽  
Yong Cheng ◽  
Longjun Xu ◽  
Chenglun Liu
Keyword(s):  
Magnetic Field ◽  
Photocatalytic Activity ◽  
Degradation Rate ◽  
Photocatalytic Performance ◽  
Photocatalytic Efficiency ◽  
Magnetic Photocatalyst ◽  
Magnetization Saturation ◽  
Excellent Photocatalytic Activity ◽  
Calcination Method ◽  
Optimum Sample

A magnetic photocatalyst [Formula: see text]-Bi2O3/Mn[Formula: see text]Zn[Formula: see text]Fe2O4 (Bi2O3/MZF) was fabricated by hydrothermal and calcination method, and characterized by XRD, FTIR, XPS and SEM, BET and VSM. The photocatalytic efficiency was measured by the degradation experiment of Rhodamine B (RhB). The degradation rate of the optimum sample Bi2O3/MZF (10 wt.%) could reach 96.8% after 3 h under visible light, and was improved significantly compared with pure [Formula: see text]-Bi2O3 due to the larger pore size (11.76 nm) and specific surface area (17.87 m2 ⋅ g[Formula: see text]. Meanwhile, the Bi2O3/MZF (10 wt.%) could be recovered under the external magnetic field due to its high magnetization saturation (9.22 emu ⋅ g[Formula: see text]. After reusing three times, the Bi2O3/MZF could still maintain the excellent photocatalytic activity and structural stability.

Fabrication of N-doped Reduced Graphene Oxide/Ag3PO4 Nanocomposite with Excellent Photocatalytic Activity for the Degradation of Organic Pollutants

NANO ◽  
2017 ◽  
Vol 12 (01) ◽  
pp. 1750013 ◽  
Author(s):  
Longhai Feng ◽  
Lirong Kong ◽  
Zhenyuan Ji ◽  
Yi Wang ◽  
Xiaoping Shen ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Photocatalytic Performance ◽  
Organic Pollutant ◽  
Charge Carriers ◽  
Simulated Solar Light ◽  
Solar Light Irradiation ◽  
Reduced Graphene ◽  
Excellent Photocatalytic Activity

An efficient N-doped reduced graphene oxide (N-RGO)/Ag3PO4 nanocomposite with enhanced photocatalytic activity has been prepared through a facile solution-based approach. Since N-RGO could offer more sites for the anchoring of Ag3PO4 nanoparticles, and effectively promote the charge carriers separation and transfer due to its high electrical conductivity, the photocatalytic activity of N-RGO/Ag3PO4 nanocomposite is much higher than bare Ag3PO4 and N-RGO in the degradation of phenol pollutant under simulated solar light irradiation. The mechanism for the photocatalytic process was also investigated. The excellent photocatalytic performance makes the N-RGO/Ag3PO4 nanocomposite a promising photocatalyst for organic pollutant treatment.

scholarly journals Enhancing Photocatalytic Performance through Tuning the Interfacial Process between -Assembled and Pt-Loaded Microspheres

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
Jun Zhang ◽  
Liping Li ◽  
Guangshe Li
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Performance ◽  
Lattice Structure ◽  
Pt Nanoparticles ◽  
Photogenerated Electrons ◽  
Excellent Photocatalytic Activity ◽  
Ultraviolet Light Irradiation ◽  
Systematic Sample ◽  
Utility Rate ◽  
High Dielectric

This work reports on a simple two-step approach to rutile TiO2-assembled microspheres loaded by Pt with an aim to tune semiconductor-metal interfacial processes for enhancing the photocatalytic performance. Systematic sample characterizations and structural analysis indicate that Pt loading did not produce any significant influences on the lattice structure of TiO2-assembled microspheres. Instead, upon Pt loading, Schottky barrier was formed in the interfaces between microspheres and Pt nanoparticles, which inhabited efficiently the recombination of photo-generated electron-hole pairs essential for the photocatalytic activities. In addition, TiO2microspheres also showed a capacity of electrons storage and releasing as represented by a high dielectric constant, which increased the utility rate of photogenerated electrons. All these structural advantages contribute to the excellent photocatalytic activity under ultraviolet light irradiation. The interfacial process between microspheres and Pt nanoparticles was further tuned through adjusting the loading Pt content of metal Pt. As a consequence, the best photocatalytic activity on TiO2was obtained at 0.85 wt% Pt loading, above or below which photocatalytic activity was apparently decreased.

Electrospinning preparation of a H4SiW12O40/polycaprolactam composite nanofibrous membrane and its greatly enhanced photocatalytic activity and mechanism

RSC Advances ◽  
2016 ◽  
Vol 6 (15) ◽  
pp. 12491-12496 ◽  
Author(s):  
Wei Li ◽  
Tingting Li ◽  
Xuegang Ma ◽  
Yuanliang Li ◽  
Libao An ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Average Diameter ◽  
Nanofibrous Membrane ◽  
Electrospinning Technique ◽  
Nanofibrous Membranes

H4SiW12O40/polycaprolactam (PA6) composite nanofibrous membranes with a minimum average diameter of ∼70 nm were prepared by an electrospinning technique.

scholarly journals Synergistic Effect of Ag and Cu Codoping on the Structural, Optical and Photocatalytic Performance of BiVO4

2021 ◽  
Author(s):  
Maheskumar Velusamy ◽  
Zhenyi Jiang ◽  
Yanming Lin ◽  
Vidhya Bhojan ◽  
Sasikumar S
Keyword(s):  
Photocatalytic Activity ◽  
Synergistic Effect ◽  
Photocatalytic Performance ◽  
Superoxide Radical ◽  
Life Time ◽  
Charge Carriers ◽  
Radical Species ◽  
Excellent Photocatalytic Activity ◽  
Superior Property ◽  
Co Doped

Abstract In this work, Ag or/and Cu doped BiVO 4 samples has been prepared successfully via hydrothermal and photoreduction method. Ag/Cu co-doped BiVO 4 exhibited high photocatalytic degradation efficiency in the degradation of methylene blue (MB) and displayed a significantly superior property compared to pure BiVO 4, as well as only Ag or Cu doped BiVO 4 upon exposure to visible light source. Interestingly, we found that enhanced photocatalytic activity of Ag/Cu co-doped BiVO 4 arises from the synergistic effect between the Ag and Cu co-doped BiVO 4 with smaller crystalline size, improved photocatalytic reaction sites, improved life-time and enhanced separation of photogenerated charge carriers which are confirmed using different characterization techniques. The degradation of MB was mainly indicated by superoxide radical species as confirmed by the trapping experiment. Based on the collective results obtained an excellent photocatalytic activity in Ag/Cu co-doped BiVO 4 has been confirmed.

Novel nanoparticle-assembled Bi12GeO20 hierarchical structures: facile hydrothermal synthesis and excellent photocatalytic activity

RSC Advances ◽  
2016 ◽  
Vol 6 (95) ◽  
pp. 92560-92568 ◽  
Author(s):  
Xin-Hua Huang ◽  
Lei Zhang ◽  
Jian Song ◽  
Xiao-Feng Cao ◽  
Yan-Chuan Guo
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Synthesis ◽  
Visible Light ◽  
Photocatalytic Performance ◽  
Hierarchical Structures ◽  
Hydrothermal Route ◽  
Facile Hydrothermal Route ◽  
Excellent Photocatalytic Activity ◽  
Visible Light Driven ◽  
Uv Visible

Novel nanoparticle-assembled Bi12GeO20 hierarchical structures with excellent UV-visible light driven photocatalytic performance have been successfully prepared via a facile hydrothermal route.

scholarly journals Facile synthesis of Bi2MoO6–MIL-100(Fe) metal–organic framework composites with enhanced photocatalytic performance

RSC Advances ◽  
2017 ◽  
Vol 7 (5) ◽  
pp. 2943-2952 ◽  
Author(s):  
Jia Yang ◽  
Xiaojun Niu ◽  
Shaorong An ◽  
Weiyi Chen ◽  
Jie Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Photocatalytic Performance ◽  
Solvothermal Method ◽  
Metal Organic Framework ◽  
Facile Synthesis ◽  
Excellent Photocatalytic Activity ◽  
Metal Organic ◽  
First Time ◽  
Facile Solvothermal Method ◽  
Organic Framework

A novel Bi2MoO6–MIL-100(Fe) photocatalyst was synthesized by a facile solvothermal method for the first time, and characterized by XRD, SEM, XPS, UV-vis, TEM, and PL. The Bi2MoO6–MIL-100(Fe) exhibited excellent photocatalytic activity and stability.

Preparation and High Photocatalytic Performance of Spherical BiOCl Photocatalyst

2018 ◽  
Vol 914 ◽  
pp. 168-174
Author(s):  
Jun Qing Chang ◽  
Yan Zhong ◽  
Chao Hao Hu ◽  
Zong Wei Ji ◽  
Yi Fan Li ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Photocatalytic Performance ◽  
Energy Dispersive Spectrometer ◽  
Light Irradiation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Excellent Photocatalytic Activity ◽  
Facile Solvothermal Method

The smooth spherical BiOCl photocatalyst was synthesized successfully by a facile solvothermal method and further characterized by X-ray diffraction, scanning electron microscopy, energy dispersive spectrometer and UV-Vis diffuse reflectance spectra techniques. The photocatalytic activity of as-prepared photoctalyst was evaluated by the degradation of Rhodamine B (RhB) under visible light irradiation (λ>420 nm). The results showed that the BiOCl with smooth spherical morphology exhibits an excellent photocatalytic activity and stability. RhB was thoroughly degraded after 60 min of visible light irradiation.

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