In2O3–ZnO nanotubes for the sensitive and selective detection of ppb-level NO2 under UV irradiation at room temperature

2021 ◽  
pp. 131322
Author(s):  
Yumeng Liu ◽  
Jinniu Zhang ◽  
Gang Li ◽  
Jia Liu ◽  
Qingfei Liang ◽  
...  
Keyword(s):  
Uv Irradiation ◽  
Room Temperature ◽  
Selective Detection ◽  
Zno Nanotubes

The Study of Photoreversibility, Photopolimerization and Photocleavage Properties of Polyurethane Coumarin by Means of Electronic Spectrometry and AFM Methods

2017 ◽  
Vol 68 (7) ◽  
pp. 1632-1635
Author(s):  
Silviu Gurlui ◽  
Emil Buruiana ◽  
Ioan Gabriel Sandu ◽  
Mitachi Strat
Keyword(s):  
Uv Irradiation ◽  
Room Temperature ◽  
Dimethyl Formamide ◽  
Photon Excitation ◽  
Photochemical Properties ◽  
Film State

The spectroscopic and photochemical properties of polyurethane coumarin (PUC) in dimethyl sulf-oxide (DMSO), thetra hydro furan (THF), dimethyl formamide (DMF) and film state were investigated at room temperature under one photon excitation. The results show that under irradiation of l ] 310 nm photodimerization process are increased and under UV irradiation with l[ 260 nm, photocleavage of polymer have been evidenced, too.

π-Conjugated Amine–ZnO Nanohybrids for the Selective Detection of CO2 Gas at Room Temperature

2018 ◽  
Vol 1 (12) ◽  
pp. 6912-6921 ◽  
Author(s):  
Biswajit Mandal ◽  
Ankan Biswas ◽  
Aaryashree ◽  
Daya Shankar Sharma ◽  
Ritesh Bhardwaj ◽  
...  
Keyword(s):  
Room Temperature ◽  
Selective Detection ◽  
Co2 Gas

Lead-free CsCu2I3 Perovskite Nanostructured Networks Gas Sensor for Selective Detection of Trace Nitrogen Dioxide at Room Temperature

2021 ◽  
pp. 1-1
Author(s):  
Xia Sun ◽  
Jie Yang ◽  
Zhilin Wu ◽  
Gang Meng ◽  
Xuezheng Guo ◽  
...  
Keyword(s):  
Nitrogen Dioxide ◽  
Gas Sensor ◽  
Room Temperature ◽  
Lead Free ◽  
Selective Detection

Manganese Oxide Photodeposited onto Titanium Dioxide as a New Environmental Catalyst

2005 ◽  
Vol 480-481 ◽  
pp. 117-122 ◽  
Author(s):  
Ayumu Tateoka ◽  
Yoshika Sekine ◽  
Takamasa Tsuda ◽  
Takanobu Ohashi
Keyword(s):  
Carbon Dioxide ◽  
Titanium Dioxide ◽  
Manganese Oxide ◽  
Organic Compounds ◽  
Uv Irradiation ◽  
Room Temperature ◽  
Complex Oxide ◽  
Environmental Catalysis ◽  
Environmental Catalyst ◽  
Formaldehyde In Air

Authors have successfully synthesized a new environmental catalysis which reacted with harmful formaldehyde in air at room temperature. Although manganese oxide is practically used for a major ingredient of formaldehyde removing materials, intermediates such as formate formed on the surface reduced the removal efficiency. Then, manganese oxide was photodeposited onto the surface of titanium dioxide particles which could decompose certain organic compounds with UV irradiation. It was confirmed that the complex oxide decomposed formaldehyde into carbon dioxide at room temperature. Moreover, UV irradiation enhanced the production of the carbon dioxide.

Highly selective detection of NH3 and H2S using the pristine CuO and mesoporous In2O3@CuO multijunctions nanofibers at room temperature

2018 ◽  
Vol 255 ◽  
pp. 1819-1830 ◽  
Author(s):  
Jiao Zhou ◽  
Muhammad Ikram ◽  
Afrasiab Ur Rehman ◽  
Jing Wang ◽  
Yiming Zhao ◽  
...  
Keyword(s):  
Room Temperature ◽  
Selective Detection

scholarly journals Enhanced Humidity Sensing Response of SnO2/Silicon Nanopillar Array by UV Irradiation

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 2141 ◽  
Author(s):  
Wei Li ◽  
Linlin Wang ◽  
Yun Cai ◽  
Peifeng Pan ◽  
Jinze Li ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Response Time ◽  
Specific Surface ◽  
Uv Irradiation ◽  
Recovery Time ◽  
Room Temperature ◽  
Uv Light ◽  
Humidity Sensing ◽  
Potential Applications ◽  
Humidity Sensitivity

In this work, a silicon nanopillar array was created with nanosphere lithography. SnO2 film was deposited on this nanostructure by magnetron sputtering to form an SnO2/silicon nanopillar array sensor. The humidity sensitivity, response time, and recovery time were all measured at room temperature (25 °C) with UV or without UV irradiation. As a result, the humidity sensitivity properties were improved by enlarging the specific surface area with ordered nanopillars and irradiating with UV light. These results indicate that nanostructure sensors have potential applications in the field of sensors.

scholarly journals Photo-Induced Super-hydrophilic Thin Films on Quartz Glass by UV Irradiation of Precursor Films Involving a Ti(IV) Complex at Room Temperature

Materials ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 348 ◽  
Author(s):  
Hsiang-Jung Wu ◽  
Kota Tanabe ◽  
Hiroki Nagai ◽  
Mitsunobu Sato
Keyword(s):  
Thin Films ◽  
Uv Irradiation ◽  
Quartz Glass ◽  
Room Temperature ◽  
Contact Angles ◽  
Chemical Components ◽  
Precursor Film ◽  
Dark Condition ◽  
Xps Spectra ◽  
Molecular Precursor

Photo-induced super-hydrophilic thin films were fabricated on a quartz glass substrate by ultraviolet (UV) irradiation of a molecular precursor film at room temperature. A molecular precursor film exhibiting high solubility to both ethanol and water was obtained by spin-coating a solution involving a Ti(IV) complex; this complex was prepared by the reaction of Ti(IV) alkoxide with butylammonium hydrogen oxalate and hydrogen peroxide in ethanol. Transparent and well-adhered amorphous thin films of 160–170 nm thickness were obtained by weak UV irradiation (4 mW·cm−2 at 254 nm) of the precursor films for over 4 h at room temperature. The resultant thin films exhibiting low refractive indices of 1.78–1.79 were mechanically robust and water-insoluble. The chemical components of the thin films were examined by means of Fourier transform-infrared (FT-IR) and X-ray photoelectron spectroscopy (XPS) spectra, focusing on the presence of the original ligands. The super-hydrophilic properties (evaluated based on the water contact angles on the surfaces) of the thin films after being kept in a dark condition overnight emerged when the aforementioned UV-light irradiation was performed for 10 min. It was additionally clarified that the super-hydrophilicity can be photo-induced repeatedly by UV irradiation for 10 min (indicated by a contact angle smaller than 4°) even after the hydrophilic level of the thin films had once been lowered by being in a dark condition for 4 h.

Ultrafast, Highly Sensitive, and Selective Detection of p-Xylene at Room Temperature by Peptide-Hydrogel-Based Composite Material

2019 ◽  
Vol 1 (9) ◽  
pp. 2267-2272 ◽  
Author(s):  
Nilotpal Singha ◽  
Samya Neogi ◽  
Bapan Pramanik ◽  
Saurav Das ◽  
Antara Dasgupta ◽  
...  
Keyword(s):  
Composite Material ◽  
Room Temperature ◽  
Selective Detection ◽  
Highly Sensitive ◽  
Peptide Hydrogel

Effect of UV Irradiation on Microlens Arrays Fabricated by Room Temperature Nanoimprinting Using Organic Spin-on-Glass

2008 ◽  
Vol 1 ◽  
pp. 067002 ◽  
Author(s):  
Ken-ichiro Nakamatsu ◽  
Makoto Okada ◽  
Chiaki Minari ◽  
Yoshiyuki Takeuchi ◽  
Noriaki Taneichi ◽  
...  
Keyword(s):  
Uv Irradiation ◽  
Room Temperature ◽  
Microlens Arrays
Sign in / Sign up

Export Citation Format

Share Document