scholarly journals Extended Near-Infrared Photoactivity of Bi6Fe1.9Co0.1Ti3O18 by Upconversion Nanoparticles

Nanomaterials ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 534 ◽  
Author(s):  
Wen Ge ◽  
Zhiang Li ◽  
Tong Chen ◽  
Min Liu ◽  
Yalin Lu
Keyword(s):  
Photocatalytic Activity ◽  
Rhodamine B ◽  
Near Infrared ◽  
Hydrothermal Process ◽  
Upconversion Nanoparticles ◽  
Ferromagnetic Properties ◽  
Optimal Ratio ◽  
Nir Light

Bi6Fe1.9Co0.1Ti3O18 (BFCTO)/NaGdF4:Yb3+, Er3+ (NGF) nanohybrids were successively synthesized by the hydrothermal process followed by anassembly method, and BFCTO-1.0/NGF nanosheets, BFCTO-1.5/NGF nanoplates and BFCTO-2.0/NGF truncated tetragonal bipyramids were obtained when 1.0, 1.5 and 2.0 M NaOH were adopted, respectively. Under the irradiation of 980 nm light, all the BFCTO samples exhibited no activity in degrading Rhodamine B (RhB). In contrast, with the loading of NGF upconversion nanoparticles, all the BFCTO/NGF samples exhibited extended near-infrared photoactivity, with BFCTO-1.5/NGF showing the best photocatalytic activity, which could be attributed to the effect of {001} and {117} crystal facets with the optimal ratio. In addition, the ferromagnetic properties of the BFCTO/NGF samples indicated their potential as novel, recyclable and efficient near-infrared (NIR) light-driven photocatalysts.

Near-infrared light-triggered drug release from UV-responsive diblock copolymer-coated upconversion nanoparticles with high monodispersity

2018 ◽  
Vol 6 (21) ◽  
pp. 3531-3540 ◽  
Author(s):  
Jun Xiang ◽  
Xia Tong ◽  
Feng Shi ◽  
Qiang Yan ◽  
Bing Yu ◽  
...  
Keyword(s):  
Drug Release ◽  
Diblock Copolymer ◽  
Near Infrared ◽  
Controlled Drug Release ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Near Infrared Light ◽  
Nir Light ◽  
Triggered Drug Release

The preparation of a new near-infrared (NIR) light-responsive nanocarrier for controlled drug release is demonstrated.

scholarly journals Near infrared light-driven water oxidation in a molecule-based artificial photosynthetic device using an upconversion nano-photosensitizer

2015 ◽  
Vol 51 (65) ◽  
pp. 13008-13011 ◽  
Author(s):  
Xiaomin Liu ◽  
Hung-Cheng Chen ◽  
Xianggui Kong ◽  
Youlin Zhang ◽  
Langping Tu ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Near Infrared ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Near Infrared Light ◽  
Photosynthetic System ◽  
Nir Light ◽  
Artificial Photosynthetic ◽  
Novel Concept

A NIR light driven nano-photosensitizer is reported as a novel concept in an artificial photosynthetic system that integrates upconversion nanoparticles with Pt(ii)-porphyrin.

scholarly journals Hyaluronate modified upconversion nanoparticles for near infrared light-triggered on–off tattoo systems

RSC Advances ◽  
2017 ◽  
Vol 7 (24) ◽  
pp. 14805-14808 ◽  
Author(s):  
Seulgi Han ◽  
Songeun Beack ◽  
Sanghwa Jeong ◽  
Byung Woo Hwang ◽  
Myeong Hwan Shin ◽  
...  
Keyword(s):  
Biomedical Applications ◽  
Near Infrared ◽  
Infrared Light ◽  
Upconversion Nanoparticles ◽  
Near Infrared Light ◽  
Nir Light

We successfully developed an NIR light-triggered in vivo on–off tattoo system using hyaluronate modified upconversion nanoparticles for various biomedical applications.

High Photocatalytic Activity of Oliver-Like BiVO4 for Rhodamine B Degradation under Visible Light Irradiation

2018 ◽  
Vol 876 ◽  
pp. 52-56 ◽  
Author(s):  
Huu Vinh Nguyen ◽  
Tran Van Thuan ◽  
Sy Trung Do ◽  
Duy Trinh Nguyen ◽  
Dai Viet Nguyen Vo ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Ethylene Glycol ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Rhodamine B ◽  
Mixed Solvent ◽  
Hydrothermal Process ◽  
Monomethyl Ether ◽  
High Specific Surface Area ◽  
Light Irradiation

We report the facial synthesis of BiVO4crystals with different morphologies by the solvothermal and hydrothermal process. The phase structure and morphology as-synthesized samples were characterized by XRD, FE-SEM, and UV-vis DRS spectroscopy. We also investigated the photocatalytic activity of BiVO4for the decomposition of rhodamine B (RhB) under visible light irradiation. The results showed that oliver-like BiVO4was obtained when using the mixed solvent of ethylene glycol and water while starflower-like BiVO4was obtained using the mixed solvent of ethylene glycol monomethyl ether and water. The hydrothermal evolution process the BiVO4product with a rod-like morphology. Oliver-like BiVO4with pure monoclinic scheelite phase and high specific surface area exhibits efficient photodegradation of RhB (k = 7.82x10-3min-1).

Constructing two-dimensional CuFeSe2@Au heterostructured nanosheets with an amorphous core and a crystalline shell for enhanced near-infrared light water oxidation

Nanoscale ◽  
2018 ◽  
Vol 10 (5) ◽  
pp. 2380-2387 ◽  
Author(s):  
Huang Wen ◽  
Hua Li ◽  
Suisui He ◽  
Fengjuan Chen ◽  
Erli Ding ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Water Oxidation ◽  
Near Infrared ◽  
Light Irradiation ◽  
Infrared Light ◽  
Core Shell ◽  
Two Dimensional ◽  
Near Infrared Light ◽  
Light Water ◽  
Nir Light

The reversed growth of 2D core–shell CuFeSe2@Au heterostructured nanosheets with a crystalline shell and an amorphous core were first prepared and show enhanced photocatalytic activity for water oxidation under NIR light irradiation.

Interface coassembly of mesoporous MoS2 based-frameworks for enhanced near-infrared light driven photocatalysis

2016 ◽  
Vol 52 (38) ◽  
pp. 6431-6434 ◽  
Author(s):  
Lihua Zhi ◽  
Haoli Zhang ◽  
Zhengyin Yang ◽  
Weisheng Liu ◽  
Baodui Wang
Keyword(s):  
Photocatalytic Activity ◽  
Room Temperature ◽  
Near Infrared ◽  
Three Dimensional ◽  
Infrared Light ◽  
Direct Arylation ◽  
Near Infrared Light ◽  
Nir Light ◽  
Hybrid Framework ◽  
First Time

The three-dimensional porous Fe3O4@Cu2−xS–MoS2 framework is reported for the first time. Such a hybrid framework exhibits excellent NIR-light photocatalytic activity and stable cycling for the direct arylation of heteroaromatics at room temperature.

An upconversion nanoplatform with extracellular pH-driven tumor-targeting ability for improved photodynamic therapy

Nanoscale ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 4432-4441 ◽  
Author(s):  
Fujin Ai ◽  
Na Wang ◽  
Xiaoman Zhang ◽  
Tianying Sun ◽  
Qi Zhu ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Tumor Targeting ◽  
Near Infrared ◽  
Extracellular Ph ◽  
Upconversion Nanoparticles ◽  
Nir Light ◽  
Targeting Ability

Upconversion nanoparticles (UCNPs) are widely utilized for photodynamic therapy (PDT) due to their specific upconverting luminescence that utilizes near infrared (NIR) light to excite photosensitizers (PSs) for PDT.

scholarly journals Full-Spectrum Photocatalytic Activity of ZnO/CuO/ZnFe2O4 Nanocomposite as a PhotoFenton-Like Catalyst

Catalysts ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 557 ◽  
Author(s):  
Zhenzhen Li ◽  
Huabin Chen ◽  
Wenxia Liu
Keyword(s):  
Photocatalytic Activity ◽  
Catalytic Activity ◽  
Near Infrared ◽  
Recycling Process ◽  
Full Spectrum ◽  
Transient Photocurrent ◽  
Nir Light ◽  
Uv Visible ◽  
Improved Performance ◽  
Degradation Of Methyl Orange

Deriving photocatalysts by the calcination of hydrotalcite-like compounds has attracted growing interest for extending their photocatalytic activity to the visible and even near-infrared (NIR) light regions. Herein, we describe the acquisition of a ZnO/CuO/ZnFe2O4 nanocomposite with good photoFenton-like catalytic activity under UV, visible and near-infrared (NIR) light irradiation by optimizing the calcination temperature of the coprecipitation product of Zn2+, Cu2+ and Fe3+. The ZnO/CuO/ZnFe2O4 nanocomposite is composed of symbiotic crystals of ZnO, CuO and ZnFe2O4, which enable the nanocomposite to show absorption in the UV, visible and NIR light regions and to produce a transient photocurrent in the presence of H2O2 under NIR irradiation. The full-spectrum photoFenton-like catalyst shows improved performance for the degradation of methyl orange with an increasing amount of H2O2 and is very stable in the recycling process. We believe that the ZnO/CuO/ZnFe2O4 nanocomposite is a promising full-spectrum photoFenton-like catalyst for the degradation of organic pollutants.

Approaches to the Multicolor Tuning of Lanthanide-Ion Doped Upconversion Nanoparticles

2013 ◽  
Vol 679 ◽  
pp. 69-74 ◽  
Author(s):  
Su Li Wu ◽  
Liu Ye ◽  
Yan Hui Ning ◽  
Wen Bin Niu ◽  
Shu Fen Zhang
Keyword(s):  
High Resistance ◽  
Near Infrared ◽  
Upconversion Nanoparticles ◽  
Lanthanide Ion ◽  
Nir Light ◽  
High Penetration ◽  
Photovoltaic Applications ◽  
Biological Labeling ◽  
Anti Stokes ◽  
Stokes Shifts

In recent years, lanthanide-ion doped nanocrystals have attracted considerable attention for its promising applications in multiplexed biological labeling. These materials can convert near-infrared (NIR) light into visible and offer low autofluorescence, high resistance to photobleaching, high penetration depth and large anti-Stokes shifts. With the development of these techniques, the ability to manipulate multicolor output has become more important for its biological and photovoltaic applications. This review mainly focuses on the recent development of various approaches for the multicolor tuning of lanthanide-ion doped upconversion nanoparticles.

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