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Photochem, Volume 5, Issue 2

June 2025 - 7 articles

Cover Story: In this short review, we explore recent progress in the selective photocatalytic oxidation of p-xylene to terephthalic acid (TPA), a critical monomer for polyethylene terephthalate (PET) production. Conventional catalytic processes, while effective, demand harsh conditions and raise environmental concerns. Photocatalysis emerges as a sustainable route, enabling light-driven oxidation under milder conditions. This review emphasizes novel heterogeneous photocatalysts, reaction mechanisms, and challenges related to selectivity, efficiency, and scalability. It offers a concise perspective on how light-driven oxidation could transform industrial TPA production. View this paper
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Articles (7)

  • Feature Paper
  • Article
  • Open Access
1,020 Views
15 Pages

Tracking Photoinduced Charge Redistribution in a Cu(I) Diimine Donor–Bridge–Acceptor System with Time-Resolved Infrared Spectroscopy

  • Sean A. Roget,
  • Wade C. Henke,
  • Maxwell Taub,
  • Pyosang Kim,
  • Jonathan T. Yarranton,
  • Xiaosong Li,
  • Karen L. Mulfort and
  • Lin X. Chen

Understanding electron density migration along excited-state pathways in photochemical systems is critical for optimizing solar energy conversion processes. In this study, we investigate photoinduced electron transfer (PET) in a covalently linked don...

  • Article
  • Open Access
1,110 Views
10 Pages

Near-infrared (NIR) rhodamine dyes are pivotal for bioimaging due to the minimal tissue interference. Yet, their rational design is hindered by unreliable computational methods for excited-state property prediction. We benchmarked the time-dependent...

  • Article
  • Open Access
1,469 Views
14 Pages

Efficient Room-Temperature Luminescence of Indole-5-Carboxamide in Poly(vinyl alcohol) Films

  • Bong Lee,
  • Agnieszka Jablonska,
  • Rajveer Sagoo,
  • Danh Pham,
  • Trang Thien Pham,
  • Sergei V. Dzyuba,
  • Zygmunt Gryczynski and
  • Ignacy Gryczynski

N-phenyl-1H-Indole-5-carboxamide (Ind-CA) exhibits previously unknown room-temperature phosphorescence (RTP) when immobilized in poly (vinyl alcohol) film (PVA film). High-fluorescence anisotropy of Ind-CA in PVA suggests that the fluorophores are st...

  • Article
  • Open Access
1,614 Views
18 Pages

Visible-Light Photoredox Catalyzed Formation of Triarylethylenes Using a Low-Cost Photosensitizer

  • Daniel Álvarez-Gutiérrez,
  • Paola Domínguez Domínguez,
  • Raúl Pérez-Ruiz,
  • David Díaz Díaz and
  • M. Consuelo Jiménez

Visible-light photoredox catalysis using biacetyl (BA) as a low-cost photosensitizer enables the efficient formation of triarylethylenes (TAEs) via a Mizoroki–Heck-type coupling. The reaction proceeds efficiently in acetonitrile upon blue LED i...

  • Article
  • Open Access
1 Citations
1,099 Views
19 Pages

Selective and Sensitive Dual Chromogenic Cyanide and Fluorescent Azide Probe

  • Yousef M. Hijji,
  • Rajeesha Rajan,
  • Amjad M. Shraim,
  • Bassam Attili,
  • Sisay Uota and
  • Fasil Abebe

IR-780 is a heptamethine cyanine dye that exhibits strong absorbance in the near-infrared region. Herein, we report IR-780 dye as a dual sensor for chromogenic cyanide detection and azide’s fluorogenic sensing in acetonitrile. Cyanide and hydro...

  • Review
  • Open Access
3,302 Views
25 Pages

This review examines the production of terephthalic acid via the oxidation of p-xylene, comparing catalytic and photocatalytic approaches. The commercial AMOCO process employs a cobalt/manganese/bromide catalyst system but requires harsh conditions,...

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Photochem - ISSN 2673-7256