Results 241 to 250 of about 103,540 (321)

Comprehensive Identification of Liquid Crystal Monomers-Biphenyls, Cyanobiphenyls, Fluorinated Biphenyls, and their Analogues-in Waste LCD Panels and the First Estimate of their Global Release into the Environment.

Environmental Science and Technology, 2021
Our previous study demonstrated massive emissions of liquid crystal monomers (LCMs) from liquid crystal display (LCD)-associated e-waste dismantling; however, the compositions, priority list, and inventory of LCMs in waste LCD panels remain unknown ...
Xinxin Liang, Ruiman Xie, Chun-You Zhu, Hui Chen, Mingjie Shen, Quan Li, Bibai Du, Dan Luo, Lixi Zeng   +8 more
semanticscholar   +1 more source

Regioselective halogenation of biphenyls for preparation of valuable polyhydroxylated biphenyls and diquinones

Tetrahedron, 2006
Electron-rich biphenyls were selectively oxyfunctionalised throw a halogenation-methoxylation sequence. The obtained biphenyl methyl ethers were then oxidized to the corresponding quinines.
Giovanna Delogu, Paolo Bovicelli, Davide Fabbri   +2 more
exaly   +2 more sources

Reduction of polycyclic compounds and biphenyls generated by pyrolysis of industrial plastic waste by using supported metal catalysts: A case study of polyethylene terephthalate treatment.

Journal of Hazardous Materials, 2020
The accumulation of industrial plastic waste in the environment is a global growing concern. Thermochemical process is a preferred method to dispose plastic waste mainly because it can reduce volume of the waste; however, the thermochemical disposal of ...
Soosan Kim, Chanyeong Park, Jechan Lee
semanticscholar   +1 more source

Pd nanoclusters/TiO2(B) nanosheets with surface defects toward rapid photocatalytic dehalogenation of polyhalogenated biphenyls under visible light

, 2020
Constructing effective photocatalysts with visible light response to achieve rapid dehalogenation of polyhalogenated compounds remains a challenge nowadays.
Wei Guo, Junhua Zou, Binbin Guo, Jinhua Xiong, Cheng Liu, Zenghong Xie, Ling Wu   +6 more
semanticscholar   +1 more source

Polychlorinated biphenyls (PCBs) in the environment: Recent updates on sampling, pretreatment, cleanup technologies and their analysis

Chemical Engineering Journal, 2019
Polychlorinated biphenyls (PCBs) are a class of synthetic organic compounds containing carbon, hydrogen and chlorine atoms. They have been used in various industrial and commercial applications owing to their high boiling points, non-flammability ...
A. B. Reddy, M. Moniruzzaman, T. Aminabhavi   +2 more
semanticscholar   +1 more source

Endocrine-disrupting mechanisms of polychlorinated biphenyls

, 2020
The extent of human exposure to chemicals, their endocrine-disrupting mechanisms of action, and the relationship between exposure and various human diseases raise significant scientific and public health concerns.
Aleksandra Buha Djordjevic, E. Antonijević, M. Ćurčić, V. Milovanović, B. Antonijević   +4 more
semanticscholar   +1 more source

Mechanistic understanding of polychlorinated biphenyls degradation by peroxymonosulfate activated with CuFe2O4 nanoparticles: Key role of superoxide radicals

Chemical Engineering Journal, 2018
Nano-CuFe2O4 has received much attention owing to its application in the heterogeneous activation of peroxymonosulfate (PMS) for contaminants degradation. However, the mechanism of activation is not fully understood.
Wen-Xiu Qin, Guo-Dong Fang, Yu-Jun Wang, Dong-Mei Zhou   +3 more
semanticscholar   +1 more source

In situ room-temperature fabrication of a covalent organic framework and its bonded fiber for solid-phase microextraction of polychlorinated biphenyls in aquatic products

Journal of Materials Chemistry A, 2019
A novel covalent organic framework (COF) TFPB-BD and its bonded fiber were fabricated for microextraction of polychlorinated biphenyls.
Jing-Xuan Guo, Hai-Long Qian, Xu Zhao, Cheng Yang, Xiu-Ping Yan   +4 more
semanticscholar   +1 more source

Biphenyl Cyclobutenone Photoelectrocyclizations

The Journal of Organic Chemistry, 2021
In this work, we demonstrate that readily available conjugated bis-aryl cyclobutenones undergo photoelectrocyclization reactions to give the corresponding dihydrophenanthrene cyclobutanones when exposed to 350 nm light, TFA, and TMSCl. We have also found that cyclobutenone electrocyclizations and cycloreversions are in equilibrium.
Changhang Dai, Xuchen Zhao, Changqing Song, Zach Schwartz, Jon D. Rainier   +4 more
openaire   +2 more sources

Polychlorinated Biphenyls (PCBs)☆

2014
P. Kodavanti
openaire   +2 more sources