Results 111 to 120 of about 24,361 (248)
Photocatalytic Degradation of PAHs Contaminated Soil in South Pars Economic and Energy Zone with TiO2 Nanocatalyst [PDF]
Iranian Journal of Chemical Engineering, 2007 Heterogeneous photocatalytic degradation of Polynuclear Aromatic Hydrocarbons (PAHs) contaminated soil in the Pars Economic and Energy Zone was carried out under laboratory conditions to evaluate the potential use of this technology for in situ ...
doaj
Gold(I)‐Catalyzed C(sp3)–C(sp) Cross‐Coupling: Access to Alkynylated Tetrahydrofuran Derivatives
Advanced Synthesis &Catalysis, Volume 368, Issue 11, 3 June 2026.An Au(I)‐catalyzed C(sp3)–C(sp) cross‐coupling, unsuccessful under photosensitized conditions for vinylgold(I) complexes, is achieved using MeDalPhosAuCl under thermal conditions, giving alkynylated tetrahydrofuran derivatives. The reaction proceeds via an Au(III) intermediate formed by oxidative addition of an alkynyl iodide.
Jorge C. Herrera‐Luna +7 more
wiley +1 more source
, 1986 Base-induced elimination of the sulfonium salt 2i in the presence of furan affords the addition products 7 and 8, derived from 1H-cyclopropa[l]phenanthrene (1) and the isomeric cyclopropene 5a(Scheme 3).
Godoy-Nguyen Thi, Huong Can +5 more
core +1 more source
Structure–Reactivity Relationship of β‐O‐4 Linkers in Lignin Model Compound Catalytic Pyrolysis
Advanced Energy and Sustainability Research, Volume 7, Issue 6, June 2026.Acid‐catalyzed pyrolysis of lignin model dimers reveals that retro‐ene and Maccoll elimination pathways compete with dehydration reactions, depending on the substituent at the β‐O‐4 linkage. We unveil these reaction mechanisms utilizing photoionization mass spectrometry with VUV synchrotron radiation.
Max Jueckstock +10 more
wiley +1 more source
, 2016 The impact of soil amendment with carbon nanotubes (CNTs) including single-walled CNTs (SW), and two multiwalled ones, MW50 and MW8, on the bioaccumulation and translocation of phenanthrene, 3-CH3`-phenanthrene and 9-NO2-phenanthrene in maize seedlings ...
Gao, Qian +9 more
core +1 more source
Surfactant Enhanced Electroremediation of Phenanthrene
, 2020 Removal of hydrophobic organic contaminants (HOCs) from soil of low permeability by electroremediation was investigated by using phenanthrene and kaolinite as a model system. Tween 80 was added into the purging solution in order to enhance the solubility
Zheng +4 more
core
Muhandisī-i Bihdāsht-i Muḥīṭ, 2015 In this study, the efficiency of phytoremediation on soils contaminated by Phenanthrene and Pyrene as well as the impact of bioaugmentation and nonionic surfactant Tween80 on its performance was evaluated by sorghum and Onobrychis sativa. Soils collected
Mohammad Mehdi Baneshi +5 more
doaj
Rediscovering the double Friedel-Crafts acylation : an expedient entry to phenanthrene-9,10-diones
, 2013 The double Friedel–Crafts acylation of readily accessible biaryls with oxalyl chloride delivers the respective phenanthrene-9,10-diones, providing an alternative to the traditional methods, which require harsh oxidizing conditions and multistep sequences.
Müller, Sebastian +4 more
core +1 more source
Analytical Science Advances, Volume 7, Issue 1, June 2026.ABSTRACT Atmospheric deposition of organic pollutants plays a crucial role in the transport and fate of contaminants in the environment, with implications for ecosystem health and human exposure. Persistent organic pollutants (POPs), polycyclic aromatic hydrocarbons (PAHs) and microplastics are increasingly recognized as transboundary threats due to ...
Iva Smoljo +2 more
wiley +1 more source
Surfactant solubilization and subsequent bioavailability of phenanthrene
, 1997 Contamination of soil, sediment and groundwater by hydrophobic organic compounds (HOCs) is a matter of growing concern because groundwater is a valuable and limited resource, and because such contamination is difficult to address.
Bramwell, Debbie-Ann
core +1 more source