Solar degradation of contaminants in water: TiO2 solar photocatalysis assisted by up-conversion luminescent materials

2016 ◽  
Vol 155 ◽  
pp. 194-201 ◽  
Author(s):  
M.E. Borges ◽  
M. Sierra ◽  
J. Méndez-Ramos ◽  
P. Acosta-Mora ◽  
J.C. Ruiz-Morales ◽  
...  
Keyword(s):  
Luminescent Materials ◽  
Solar Photocatalysis

Solar photocatalysis mediated by ZnO for the removal of last traces of Indigo carmine dye pollutant from water

2018 ◽  
Vol 4 (02) ◽  
Author(s):  
Veena Vijayan ◽  
Suguna Yesodharan ◽  
E. P. Yesodharan
Keyword(s):  
Indigo Carmine ◽  
Parent Compound ◽  
Oxygen Demand ◽  
Green Technology ◽  
Solar Photocatalysis ◽  
Reaction Proceeds ◽  
Transient Intermediates ◽  
Significant Chemical ◽  
Hydroxyl Free Radicals ◽  
Purification Of Water

Solar photocatalysis as a potential green technology for the removal of traces of the dye pollutant Indigo carmine (IC) from water is investigated using ZnO as the catalyst. Degradation/decolorization alone does not result in complete decontamination as seen from the significant Chemical Oxygen Demand (COD) of water even after the parent compound has disappeared completely. The degradation proceeds through many intermediates which also get mineralized eventually but slowly. Oxalic acid is identified as a stable slow mineralizing degradation product which itself is formed from other transient intermediates. Effect of various parameters such as catalyst dosage, concentration of the dye, pH, temperature, presence of contaminant salts etc. on the degradation is investigated and quantified. Oxidants such as S2O82- and H2O2 have only moderate influence on the degradation. The degradation follows variable kinetics depending on the concentration of the substrate. The reaction proceeds very slowly in the absence of O2 indicating the importance of reactive oxygen species and hydroxyl free radicals in photocatalysis. H2O2 formed insitu in the system undergoes concurrent decomposition resulting in stabilization in its concentration. The study demonstrates that solar photocatalysis can be used as a viable tool for the purification of water contaminated with traces of IC.

Research progress on organic self-assembling low-dimensional circularly polarized luminescent materials

2020 ◽  
Vol 13 (0) ◽  
pp. 1-11
Author(s):  
WANG Meng-Zhu ◽  
◽  
DENG Yong-Jing ◽  
LIU Shu-Juan ◽  
ZHAO Qiang
Keyword(s):  
Research Progress ◽  
Luminescent Materials ◽  
Circularly Polarized ◽  
Self Assembling ◽  
Low Dimensional

Recent advances in quinazolinones as an emerging molecular platform for luminescent materials and bioimaging

2021 ◽  
Vol 8 (8) ◽  
pp. 1867-1889
Author(s):  
Zhiming Xing ◽  
Wanhui Wu ◽  
Yongxiang Miao ◽  
Yingqun Tang ◽  
Youkang Zhou ◽  
...  
Keyword(s):  
Fluorescent Probes ◽  
Biological Imaging ◽  
Luminescence Properties ◽  
Luminescent Materials ◽  
Future Outlook ◽  
Recent Advances

This review summarized recent advances relating to the luminescence properties of quinazolinones and their applications in fluorescent probes, biological imaging and luminescent materials. Their future outlook is also included.

Multi-Site Cr3+ Occupation Related Broadband NIR Luminescence in Cr3+-doped Li3Mg2NbO6

CrystEngComm ◽  
2021 ◽  
Author(s):  
Fen Xiao ◽  
Chengning Xie ◽  
Shikun Xie ◽  
Rongxi Yi ◽  
Huiling Yuan ◽  
...  
Keyword(s):  
Near Infrared ◽  
Nir Spectroscopy ◽  
Luminescent Materials ◽  
Optical Source ◽  
Nir Emission ◽  
Nir Luminescence

Broadband near infrared (NIR) luminescent materials have attracted great attention recently for the advance smart optical source of NIR spectroscopy. In this work, a broadband NIR emission from 650 nm...

Fluorescent nematic liquid crystalline oligomers with Reversible Texture and Photoluminescence response to Temperature

2021 ◽  
Author(s):  
Congcong Luo ◽  
bing yao ◽  
Hengheng Zhu ◽  
Xi-Hua Du ◽  
Yan Chen ◽  
...  
Keyword(s):  
Information Security ◽  
Liquid Crystalline ◽  
Unique Feature ◽  
External Stimulus ◽  
Luminescent Materials ◽  
Response To Temperature ◽  
Photoluminescence Response

Fluorescent liquid crystalline in luminescent materials have attracted interest for their unique feature of fluorescence in response to external stimulus and their applicability in information security and anti-counterfeiting. Herein, fluorescent...

scholarly journals X-ray-activated, UVA persistent luminescent materials based on Bi-doped SrLaAlO4 for deep-Seated photodynamic activation

2021 ◽  
Vol 129 (12) ◽  
pp. 120901
Author(s):  
Bo-Mei Liu ◽  
Wei-Jiang Gan ◽  
Sun-Qi Lou ◽  
Rui Zou ◽  
Qiang Tang ◽  
...  
Keyword(s):  
Luminescent Materials ◽  
X Ray

Ultra‐Fast Microwave Synthesis of WO 3 Nanostructured Films for Solar Photocatalysis

2021 ◽  
Author(s):  
Daniela Nunes ◽  
Ana Rita Fragoso ◽  
Tomas Freire ◽  
Mariana Matias ◽  
Ana Carolina Marques ◽  
...  
Keyword(s):  
Microwave Synthesis ◽  
Nanostructured Films ◽  
Solar Photocatalysis

Cucurbituril Based Luminescent Materials in Aqueous Media and Solid State

2021 ◽  
Author(s):  
Shubhra Kanti Bhaumik ◽  
Rakesh Biswas ◽  
Supratim Banerjee
Keyword(s):  
Solid State ◽  
Aqueous Media ◽  
Luminescent Materials

scholarly journals Advances in engineering near-infrared luminescent materials

iScience ◽  
2021 ◽  
Vol 24 (3) ◽  
pp. 102156
Author(s):  
Christopher T. Jackson ◽  
Sanghwa Jeong ◽  
Gabriel F. Dorlhiac ◽  
Markita P. Landry
Keyword(s):  
Near Infrared ◽  
Luminescent Materials

A straightforward approach for high-end anti-counterfeiting applications based on NIR laser-driven lanthanide doped luminescent glasses

2021 ◽  
Author(s):  
Naji Vahedigharehchopogh ◽  
Orhan Kıbrıslı ◽  
Erdinc Erol ◽  
Miray Çelikbilek Ersundu ◽  
Ali Erçin Ersundu
Keyword(s):  
Nano Particles ◽  
Luminescent Materials ◽  
Perovskite Nanocrystals ◽  
Straightforward Approach ◽  
Nir Laser

Increment of forgery in documents and authentic products have aroused the search for new high-end anti-counterfeiting strategies. Various chameleon-like luminescent materials such as up-conversion nano particles or perovskite nanocrystals have...

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