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Produced at ton scale, vat dyes are major environmental pollutants generated by the textile industry. However, they represent ideal and accessible candidates for chemical upcycling since they are usually composed of large π-conjugated scaffolds. Based on the valorization of "old" products, waste or even contaminant into high-added value goods, this concept can be easily transposed to the laboratories. As a contribution to the current environmental and ecological transition, we demonstrate herein the valorization/upcycling of wastewaters generated during the dyeing procedure. To do so, the reduced (leuco) form of vat violet 10, also known as isoviolanthrone, was functionalized to afford a readily soluble derivative that was subsequently and successfully used as active material in operating solution processed light-emitting electrochemical cells, that is, from textile dyeing to high-tech application.
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http://dx.doi.org/10.1002/asia.202300014 | DOI Listing |
Nanoscale
September 2025
Department of Chemistry, Utkal University, Vani Vihar, Bhubaneswar, 751004, India.
Designing heterostructure-based nanocomposites has gained considerable interest in solving energy scarcity and environmental contamination issues. Herein, a heterojunction assembly of ternary SnS/MoS/g-CN nanocomposites with varying Sn and Mo weight ratios was synthesized through a single-step hydrothermal method. At an optimized ratio of tin to molybdenum (1 : 2), denoted as SM-3, promising electrochemical and photocatalytic performances were observed compared to bare SnS/g-CN and MoS/g-CN.
View Article and Find Full Text PDFACS Nano
September 2025
Hefei National Research Center for Physical Sciences at the Microscale, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
The transition from fossil fuels to environmentally friendly renewable energy sources is crucial for achieving global initiatives such as the carbon peak and carbon neutrality. The use of secondary batteries and supercapacitors based on electrochemical energy storage principles provides high energy density, conversion efficiency, and rapid response times, offering essential solutions for stabilizing and ensuring the reliability of energy supply from renewable sources despite their intermittency. In recent years, increased demands for higher energy density, improved rate performance, longer cycle life, enhanced safety, and cost-effectiveness have driven researchers to delve deeper into electrode materials, electrolytes, and storage mechanisms in secondary batteries.
View Article and Find Full Text PDFACS Appl Mater Interfaces
September 2025
Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
Integrating semiconductor nanowires with a nanoplasmonic metal surface substrate enables a real-time photocurrent response, offering a promising immunosensing platform. However, achieving one-step biorecognition detection of cardiac troponin I (cTnI) biomarker remains a challenge. Herein, we present the development of an antenna-engaged nanowire-inspired porous heterostructure comprising polydopamine-functionalized titanium dioxide nanowires integrated with an Au plasmonic layer (PDA/TNW/Au-PL) for ultrasensitive immunosensors under homemade white light-emitting diodes (LEDs).
View Article and Find Full Text PDFAdv Mater
August 2025
School of Chemical Engineering, Sungkyunkwan University, 2066, Seobu-ro, Jangan-gu, Suwon-si, Gyeonggi, 16419, Republic of Korea.
Blue phosphorescent organic light-emitting diodes (PhOLEDs) face challenges in achieving high efficiency, color purity, and long device lifetime due to exciton quenching and high energy requirements. In this study, two tetradentate Pt(II) complexes, Pt-impy and Pt-Me-impy, are designed and synthesized by incorporating pyridocarbene in their ligands. Pyridocarbene enhances the electrochemical stability, strengthens triplet metal-to-ligand charge transfer characteristics, and improves the spin-orbit coupling, effectively shortening the exciton lifetime and minimizing the quenching effects.
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August 2025
Australian Research Council Centre of Excellence for Carbon Science and Innovation, Australian Carbon Materials Centre, School of Chemical Engineering, University of New South Wales, Sydney, New South Wales 2052, Australia.
The introduction of heteroatoms (i.e., atoms different from the carbon atom) with different sizes and electronegativities into a pure carbon structure offers a way to control the electron distribution within carbon materials.
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