Topic
Nitrobenzene
About: Nitrobenzene is a research topic. Over the lifetime, 5285 publications have been published within this topic receiving 83368 citations. The topic is also known as: essence of mirbane & nitrobenzol.
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TL;DR: Eu-MOF (VI) behaves as a multi-responsive luminescent sensor toward Fe3+, Cu2+, Cr2O72- and nitrobenzene with high sensitivity, selectivity, stability and anti-interference ability against the coexistence of other ions or molecules based on high luminescence quenching efficiency.
Abstract: Excessive release of some hazardous chemicals, such as Fe3+, Cu2+, Cr2O72- and nitrobenzene, may endanger public health and the environment; therefore, targeted effective sensing strategies are important In this report, a series of lanthanide-based metal-organic frameworks (Ln-MOFs), namely {[Ln(dpc)(2H2O)]·(Hbibp)05}n (H4dpc = 2-(3',4'-dicarboxylphenoxy) isophthalic acid, bibp = 4,4'-bis(imidazolyl) biphenyl, for I-VI, Ln = La, Ce, Pr, Nd, Sm, and Eu) were hydrothermally synthesized and characterized Single-crystal X-ray diffraction indicates that I-VI are isostructural and the lanthanide center is nine-coordinated with a distorted tetrakaidecahedral configuration The as-synthesized Ln-MOFs are assembled into three-dimensional frameworks through the connections of dpc4- ligands and hydrogen bonding interactions Notably, Eu-MOF (VI) behaves as a multi-responsive luminescent sensor toward Fe3+, Cu2+, Cr2O72- and nitrobenzene with high sensitivity, selectivity, stability and anti-interference ability against the coexistence of other ions or molecules based on high luminescence quenching efficiency Additionally, Eu-MOF (VI) shows excellent luminescence stability and retains its structural integrity within the pH range of 2-12 in an aqueous solution and its solid sample maintains high thermodynamic stability up to 320 °C Furthermore, the possible luminescence sensing mechanisms have been discussed in detail, and are supported by PXRD analysis, UV-vis spectroscopy, X-ray photoelectron spectroscopy (XPS) or density functional theory (DFT)
63 citations
TL;DR: In this article, the influence of H 2 O 2 and Fe(III) in the degradation of nitrobenzene in aqueous solutions combined with UV radiation has been studied.
Abstract: The influence of H 2 O 2 and Fe(III) in the degradation of nitrobenzene in aqueous solutions combined with UV radiation has been studied. A major efficiency is achieved when UV is combined with H 2 O 2 or Fe(III). Likewise, H 2 O 2 and Fe(III) concentration has an important effect on the degradation. Nitrophenol isomers are detected as the major intermediate products.
62 citations
TL;DR: The mechanisms of primary reaction pathways are discussed and a detailed kinetic analysis to obtain the true primary yields of phenolic products is proposed, showing that both hydroxylation and nitration reactions are involved in nitrobenzene thermal degradation.
62 citations
TL;DR: In this article, the activation of α-Fe 2 O 3 in a water bath under air atmosphere at room temperature followed by heating at 200 °C, dramatically increase the activity of activated hematite, and a wide variety of benzene derivatives were easily converted into the corresponding acylated products in a clean and high yielding acylation reaction.
Abstract: Catalytic Friedel-Crafts acylation of benzene and unactivated benzenes such as chlorobenzene and nitrobenzene have been successfully carried out using activated hematite (α-Fe 2 O 3 ) as a new, heterogeneous and green catalyst. Sonication of neat α-Fe 2 O 3 in a water bath under air atmosphere at room temperature followed by heating at 200 °C, dramatically increase the activity of α-Fe 2 O 3 . With the catalyst loading as low as 5.0 mol%, a wide variety of benzene derivatives were easily converted into the corresponding acylated products in a clean and high-yielding acylation reaction. It was found that the activated α-Fe 2 O 3 could be efficiently recycled and reused several times by simple washing with ethyl acetate, this cannot be attained with most of the traditional catalysts.
62 citations
TL;DR: In this paper, a gas-liquid-solid microreactor with the polydopamine functionalized surface coated by highly active palladium nanocatalysts using the electroless deposition was successfully developed for hydrogenation of nitrobenzene.
62 citations