Synergistic Effects in Ultrafine Amorphous InSxOy Nanowires Boost Photocatalytic Syngas Production from CO2

2022 ◽  
Author(s):  
Zejun Zhao ◽  
Zailun Liu ◽  
Yong Yang ◽  
Teng Wang ◽  
Fei Teng ◽  
...  
Keyword(s):  
Visible Light ◽  
Synergistic Effects ◽  
Cooperative Strategy ◽  
Comprehensive Utilization ◽  
Syngas Production ◽  
Visible Light Driven

Visible-light-driven synthesis of syngas has been widely regarded as an ingenious strategy to realize the comprehensive utilization of CO2. Herein, a cooperative strategy basing on S-atoms substitution and morphology regulations...

scholarly journals TiO2 nanocrystals with the {001} and {101} facets co-exposed with MIL-100(Fe): an egg-like composite nanomaterial for efficient visible light-driven photocatalysis

RSC Advances ◽  
2019 ◽  
Vol 9 (54) ◽  
pp. 31728-31734 ◽  
Author(s):  
Wan Wu ◽  
Jie Zhu ◽  
Yue Hong Deng ◽  
Ye Xiang ◽  
Ya Wen Tan ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Synergistic Effects ◽  
Tio2 Nanocrystals ◽  
Crystal Face ◽  
Composite Nanomaterial ◽  
Specific Composition ◽  
Visible Light Driven

The exposure of a specific crystal face to a specific composition and the search for a suitable carrier composition with synergistic effects can effectively improve the photocatalytic activity of the material and enhance its practical value.

scholarly journals Core-Shell Heterostructured and Visible-Light-Driven Titanoniobate/TiO2 Composite for Boosting Photodegradation Performance

Nanomaterials ◽  
2019 ◽  
Vol 9 (10) ◽  
pp. 1503 ◽  
Author(s):  
Chao Liu ◽  
Xin Gao ◽  
Zitong Han ◽  
Yao Sun ◽  
Yue Feng ◽  
...  
Keyword(s):  
Visible Light ◽  
Photocatalytic Degradation ◽  
Environmental Remediation ◽  
Synergistic Effects ◽  
Light Response ◽  
Core Shell ◽  
Photogenerated Electrons ◽  
Visible Light Driven ◽  
Degradation Activity ◽  
Calcination Method

Herein, we report a one-dimensional (1D) S-doped K3Ti5NbO14@TiO2 (STNT) core-shell heterostructured composite with an enhanced photocatalytic degradation activity under visible light, which was prepared by a simple reassembly-calcination method using thiourea as the S source. The anisotropically shaped rods are favorable for the rapid transport of photogenerated charge carriers. The substitution of Ti4+ by S6+ is primarily incorporated into the lattice of the TiO2 shell so as to create an intra-band-gap state below the conduction band (CB) position, giving rise to Ti−O−S bonds and thus the visible light response. The presence of electron-deficient S atoms is of benefit to the decreased recombination rate of photogenerated electrons and holes by capturing electrons (e−). Meanwhile, a tight close interface between K3Ti5NbO14 and TiO2 was formed to achieve a nano-heterojunction structure, leading to the fostered separation of its interfacial photogenerated electrons and holes. The visible-light-driven photocatalytic degradation of methylene blue (MB) by STNT composites is higher than that by pure K3Ti5NbO14, owing to the synergistic effects of S doping and heterojunction. A possible photocatalytic mechanism was proposed with a reasonable discussion. This work may provide an insight into constructing highly efficient core-shell photocatalysts used toward sustainable environmental remediation and resource shortages.

Synergistic effect of Au and Rh on SrTiO3in significantly promoting visible-light-driven syngas production from CO2and H2O

2016 ◽  
Vol 52 (35) ◽  
pp. 5989-5992 ◽  
Author(s):  
Dewang Li ◽  
Shuxin Ouyang ◽  
Hua Xu ◽  
Da Lu ◽  
Ming Zhao ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Visible Light ◽  
Significant Role ◽  
Visible Light Irradiation ◽  
Light Irradiation ◽  
Syngas Production ◽  
Visible Light Driven

A novel photocatalyst, Rh and Au coloaded SrTiO3, enables syngas photosynthesis to be realized under visible-light irradiation; the synergistic effect of Rh and Au plays a significant role in achieving enhanced photoactivity.

scholarly journals Photocatalytic activity enhancement for removal of dye molecules based on plasmonic Ag grafted TiO2 nanocubes under visible light driven

2020 ◽  
Vol 23 (4) ◽  
pp. 743-751
Author(s):  
Ton Nu Quynh Trang ◽  
Le Thi Ngoc Tu ◽  
Tran Van Man ◽  
Vu Thi Hanh Thu
Keyword(s):  
Visible Light ◽  
Environmental Remediation ◽  
High Efficiency ◽  
Uv Light ◽  
Synergistic Effects ◽  
Light Response ◽  
Ag Nps ◽  
X Ray ◽  
Visible Light Driven ◽  
Carrier Separation

Introduction: Finding a novel photocatalyst for photocatalytic degradation operating in the wavelength range from UV to visible light has been considered a great potential for environmental remediation. Herein, TiO2 nanocubics (NCs) decorated Ag nanoparticles (NPs) with various concentrations were developed. Methods: The crystal structure, morphological and chemical characteristics of prepared photocatalysts were thoroughly analyzed by a series of main analyses (X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), energy-dispersive X-ray spectroscopy (EDX), and UVVis spectra). Results: The results revealed that a significantly promoting visible-light photocatalytic behavior of TiO2NCs@Ag photocatalyst was observed. The photocatalytic methyl orange (MO) degradation of the as-synthesized Ag anchored TiO2NCs photocatalyst (85% and 62% under UV light and visible light, respectively) exhibited outstanding photocatalytic efficacy compared with pristine TiO2 NCs. The achieved results could be assigned to the synergistic effects between TiO2NCs and Ag- NPs, leading to enhanced charge carrier separation and improved absorption ability in visible-light response. Conclusion: This work facilitates designing and developing high-efficiency heterostructure photocatalysts for practical works related to environmental deterioration.

Sign in / Sign up

Export Citation Format

Share Document