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Room temperature synthesis of one-dimensional hierarchical hollow BiOBr with tunable photocatalysis reaction pathway for RhB under visible light.
Environ Res
January 2025
Jiangxi Province Key Laboratory of Surface Engineering, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China; School of Materials and Energy, Jiangxi Science & Technology Normal University, Nanchang, 330013, PR China. Electronic address:
One-dimensional (1D) hierarchical photocatalyst has the advantages of 1D materials and hierarchical materials, which is a kind of potential high performance photocatalytic materials. However, how to efficiently synthesize 1D hierarchical BiOBr is still a huge challenge. Herein, 1D rod-like BiO(OH)(NO)·3HO, the hydrolysis product of Bi(NO)·5HO, was acted as both the template and Bi source to synthesize 1D hierarchical hollow BiOBr (1DHHBr) through a facile solution stirring method at room temperature, using KBr as Br source.
View Article and Find Full Text PDFSurfing the limits of cyanine photocages one step at a time.
Chem Sci
November 2024
Department of Chemistry, University of Zurich Winterthurerstrasse 190 CH-8057 Zurich Switzerland
Near-infrared light-activated photocages enable controlling molecules with tissue penetrating light. Understanding the structural aspects that govern the photouncaging process is essential to enhancing their efficacy, crucial for practical applications. Here we explore the impact of thermodynamic stabilization on contact ion pairs in cyanine photocages by quaternarization of the carbon reaction centers.
View Article and Find Full Text PDFClick catalysis and DNA conjugation using a nanoscale DNA/silver cluster pair.
Nanoscale
October 2024
Department of Chemistry, Furman University, Greenville, SC, 29613, USA.
DNA-bound silver clusters are most readily recognized by their strong fluorescence that spans the visible and near-infrared regions. From this suite of chromophores, we chose a green-emitting Ag bound to CACTCGT and describe how this DNA/cluster pair is also a catalyst. A DNA-tethered alkyne conjugates with an azide cycloaddition, an inherently slow reaction that is facilitated through the joint efforts of the cluster and DNA.
View Article and Find Full Text PDFA [2.2]Isoindolinophanyl-Based Carbene (iPC) Ligand: Synthesis, Electronic and Photophysical Properties, and Application in Photocatalysis.
Angew Chem Int Ed Engl
October 2024
Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227, Dortmund, Germany.
Cyclic amino(alkyl) and cyclic amino(aryl) carbenes (cAACs/cAArCs) have been established as very useful ligands for catalytic and photonic applications of transition metal complexes. Herein, we describe the synthesis of a structurally related sterically demanding, electrophilic [2.2]isoindolinophanyl-based carbene (iPC) that bears a [2.
View Article and Find Full Text PDFMemory effects in the efficiency control of energy transfer under incoherent light excitation in noisy environments.
J Chem Phys
June 2024
SSCU, Indian Institute of Science, Bangalore 560012, India.
Fluctuations in energy gap and coupling constants between chromophores can play an important role in absorption and energy transfer across a collection of two-level systems. In photosynthesis, light-induced quantum coherence can affect the efficiency of energy transfer to the designated "trap" state. Theoretically, the interplay between fluctuations and coherence has been studied often, employing either a Markovian or a perturbative approximation.
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