{"title":"Photo-Responsive Organic RTP of Benzothiophene Derivative","authors":"Yuxuan Song, Xuanhang Wang, Chunjuan Li, Jiayi Han, Guocui Pan, Bin Xu, Leijing Liu, Wenjing Tian","doi":"10.1002/asia.70920","DOIUrl":"https://doi.org/10.1002/asia.70920","url":null,"abstract":"<div>\u0000 \u0000 <p>Photo-responsive organic room temperature phosphorescence (RTP) materials show broad prospects in intelligent responsive RTP materials due to their advantages of environmental friendliness and facile availability. However, dynamic regulation of RTP by light remains challenging, as the introduction of photo-responsive groups may lead to phosphorescence quenching. In this study, we designed and synthesized a photo-responsive RTP molecule 9-(1-benzothiophen-5-carbonyl)-9H-carbazole (CZ-CO-BT), utilizing benzothiophene as the photo-responsive unit and carbazole as the phosphorescent emitter. Under continuous UV irradiation, CZ-CO-BT exhibits weakening of both RTP intensity and lifetime through [2+2] cycloaddition reactions between molecules, achieving photo-responsive triplet-state luminescence regulation. Furthermore, by doping CZ-CO-BT into polymer matrix, a reversible phosphorescent switch is achieved through an oxygen-consuming and oxygen-introducing process under alternating UV light and heating treatment. Based on the unique photoswitching property of CZ-CO-BT, we explored the possibility of optical information storage, which demonstrated the great application potential of the molecule.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 15","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662467","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Specific and Selective Adsorption of Aldehydes by Layered Double Hydroxides-Modified Cellulose Acetate","authors":"Xiaohe Liu, Rui Hu, Yufeng Luo, Rui Tian, Peng Li, Chao Lu","doi":"10.1002/asia.70932","DOIUrl":"https://doi.org/10.1002/asia.70932","url":null,"abstract":"<div>\u0000 \u0000 <p>Volatile aldehydes, especially from cigarette, pose potential threats to human health. However, the current strategies failed to selectively adsorb aldehyde hazards, indiscriminately removing all the substances to reduce smoking satisfaction. In this work, we have uniformly localized layered double hydroxides (LDH) onto the cellulose acetate (CA) fiber to prepare LDH@CA composites based on the hydrogen bonds between the ester carbonyl groups of CA and the hydroxyl groups of LDH. The acquired hierarchical structure exhibited abundant hydroxyl groups, forming hydrogen bonds with aldehydes for a specific adsorption. Note that 73.03% of formaldehyde and 86.23% of acetaldehyde could be effectively removed by the composite. More importantly, the composites could selectively remove the aldehydes without reducing nicotine in the cigarette. Accordingly, we could use the composite to maintain the smoking satisfactory while removing hazardous aldehydes. Therefore, we have realized the selective and specific adsorption of aldehydes by LDH-modified CA based on the hydrogen bonds. It is expected that the as-prepared low-cost, and environmentally friendly composite could find more applications for air purification.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 15","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jianan Zan, Yizhi Liao, Wei Shan, Fan Xu, Lu Guo, Kwun Nam Hui, Min Luo, Fuming Chen
{"title":"Continuous Recovery of Spent LiFePO4 via Ascorbic Acid Based Redox Flow Battery","authors":"Jianan Zan, Yizhi Liao, Wei Shan, Fan Xu, Lu Guo, Kwun Nam Hui, Min Luo, Fuming Chen","doi":"10.1002/asia.70931","DOIUrl":"https://doi.org/10.1002/asia.70931","url":null,"abstract":"<div>\u0000 \u0000 <p>The direct recycling of spent LiFePO<sub>4</sub> is essential for building a sustainable circular economy for lithium-ion batteries, yet conventional methods suffer from high energy consumption and environmental pollution. Here, we develop a continuous redox flow battery using regenerable ascorbic acid as a redox mediator for efficient ambient-temperature relithiation. The electrochemical regeneration of ascorbic acid enables a near-closed-loop process with minimal reagent consumption. The regenerated LiFePO<sub>4</sub> achieves a specific capacity of 123.6 mAh/g at 0.5 C, comparable to spent LiFePO<sub>4</sub>, and achieve a capacity restoration efficiency of 44.3%. Structural and elemental analyses confirm successful restoration of the crystal lattice and lithium content. This work provides a green, economical, and scalable strategy for direct recycling of spent LiFePO<sub>4</sub>, demonstrating strong potential for industrial-scale battery reclamation.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 15","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662470","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Specific and Selective Adsorption of Aldehydes by Layered Double Hydroxides-Modified Cellulose Acetate","authors":"Xiaohe Liu, Rui Hu, Yufeng Luo, Rui Tian, Peng Li, Chao Lu","doi":"10.1002/asia.70932","DOIUrl":"https://doi.org/10.1002/asia.70932","url":null,"abstract":"<div>\u0000 \u0000 <p>Volatile aldehydes, especially from cigarette, pose potential threats to human health. However, the current strategies failed to selectively adsorb aldehyde hazards, indiscriminately removing all the substances to reduce smoking satisfaction. In this work, we have uniformly localized layered double hydroxides (LDH) onto the cellulose acetate (CA) fiber to prepare LDH@CA composites based on the hydrogen bonds between the ester carbonyl groups of CA and the hydroxyl groups of LDH. The acquired hierarchical structure exhibited abundant hydroxyl groups, forming hydrogen bonds with aldehydes for a specific adsorption. Note that 73.03% of formaldehyde and 86.23% of acetaldehyde could be effectively removed by the composite. More importantly, the composites could selectively remove the aldehydes without reducing nicotine in the cigarette. Accordingly, we could use the composite to maintain the smoking satisfactory while removing hazardous aldehydes. Therefore, we have realized the selective and specific adsorption of aldehydes by LDH-modified CA based on the hydrogen bonds. It is expected that the as-prepared low-cost, and environmentally friendly composite could find more applications for air purification.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 15","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Light-Activated Luminophores Based on Carbazolyl Oxime Esters for Real-Time Monitoring Photolithographic Processes","authors":"Wenjing Wang, Liming Liu, Yuchun Yang, Yincheng Chang","doi":"10.1002/asia.70923","DOIUrl":"https://doi.org/10.1002/asia.70923","url":null,"abstract":"<div>\u0000 \u0000 <p>Photoactivatable luminescent materials have emerged as promising candidates for applications in information encryption, anti-counterfeiting, and bioimaging. However, for practical application in photolithographic processes, some fundamental requirements such as material compatibility and suitability with exposure to light sources remain challenging for photo-activated luminescent materials. Herein, two radical-mediated photoinitiators, <i>oxe02</i> and <i>oxe03</i>, were developed as novel photo-activated luminescent materials and incorporated into photoresist formulations to enable direct visualization of pattern quality. In their native state, these molecules are non-luminescent; upon ultraviolet (UV) exposure, they undergo photolytic cleavage to generate radicals that subsequently initiate luminescence. Upon exposure, the photoinitiators in the photoresist are activated and emit strong luminescence, enabling direct visualization of the pattern prior to development and facilitating rapid evaluation of pattern quality. The findings not only expand the functional scope of photoinitiators in luminescent material systems but also propose a viable strategy for real-time monitoring in photolithographic processes, demonstrating significant promise for practical applications.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 15","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yi Zhou, Zhanzhou Wei, Yabing Zhang, Yunfei Zhang, Kehan He
{"title":"Recent Advances in Direct Elimination of Carboxylic Acids to Olefins","authors":"Yi Zhou, Zhanzhou Wei, Yabing Zhang, Yunfei Zhang, Kehan He","doi":"10.1002/asia.70922","DOIUrl":"https://doi.org/10.1002/asia.70922","url":null,"abstract":"<div>\u0000 \u0000 <p>The direct elimination of carboxylic acids to olefins offers an atom-economical and sustainable strategy for synthesizing valuable alkenes from abundant, stable, and inexpensive precursors. This review systematically summarizes recent advances (through 2025) in reaction systems and mechanistic studies in this transformation, encompassing thermal, transition metal catalysis (e.g., Rh, Pd, Ir, Ni, Cu, Fe), photochemical, and electrochemical pathways. Within this framework, we highlight progress in catalyst design—including ligand optimization and the development of earth-abundant metal and rare metal catalysts—activation modes (e.g., through the formation of anhydrides, or via direct decarboxylation), and the implementation of greener reaction conditions. While significant progress has been made in thermal and transition metal-catalyzed methods, challenges persist, including cost, metal recovery, and the need for harsh conditions. Emerging photochemical and electrochemical approaches provide milder and more environmentally benign alternatives; however, issues regarding selectivity, scalability, and reagent sustainability demand further investigation. This overview aims to serve as a comprehensive knowledge base and practical reaction guide, inspiring future research to overcome existing limitations and advance the practical, sustainable synthesis of olefins via elimination of carboxylic acids.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 15","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Synergistic Effects of Morphology and Interface Engineering in WO3/TiO2 for Photocatalytic Hydrogen Generation","authors":"Suhaib Alam, Chetan Rathi, Dimple, Keisuke Tsushiro, Fumiaki Amano, Priyanka Verma","doi":"10.1002/asia.70918","DOIUrl":"https://doi.org/10.1002/asia.70918","url":null,"abstract":"<div>\u0000 \u0000 <p>Developing efficient catalysts for H<sub>2</sub> release is significant in advancing sustainable energy systems. In particular, heterostructures based on WO<sub>3</sub> and TiO<sub>2</sub> stand out as promising photocatalysts owing to their tunable band structures, robust stability, and cost-effectiveness. This study investigates the impact of morphology and synthesis approach on the catalytic performance of WO<sub>3</sub>/TiO<sub>2</sub> heterostructures for ammonia borane dehydrogenation. Two synthesis approaches, ex situ coupling of pre-synthesized WO<sub>3</sub> with TiO<sub>2</sub> and in situ growth of TiO<sub>2</sub> on WO<sub>3</sub>, were systematically utilized to tailor the heterointerface and morphology. Controlled reaction conditions facilitated the formation of hexagonal-like WO<sub>3</sub>, thereby enabling the growth of distinct nanostructures. When integrated with TiO<sub>2</sub>, the morphology, heterojunction characteristics, and surface area were found to be highly dependent on the synthesis method. The in situ WO<sub>3</sub>/TiO<sub>2</sub> heterostructure (∼0.302 µmol min<sup>−1</sup>) exhibited superior catalytic performance compared to ex situ method (∼0.258 µmol min<sup>−1</sup>). This enhancement is ascribed to the synergistic effects of increased surface area (21.81 m<sup>2</sup>g<sup>−1</sup> for in situ sample compared with 11.33 m<sup>2</sup>g<sup>−1</sup> for ex situ sample) and a more intimate heterointerface, which together promote effective charge separation and electron transfer. The findings highlight that not only morphology and composition but also the synthetic route play a critical role in determining catalytic efficiency.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 15","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Photo-Responsive Organic RTP of Benzothiophene Derivative","authors":"Yuxuan Song, Xuanhang Wang, Chunjuan Li, Jiayi Han, Guocui Pan, Bin Xu, Leijing Liu, Wenjing Tian","doi":"10.1002/asia.70920","DOIUrl":"https://doi.org/10.1002/asia.70920","url":null,"abstract":"<div>\u0000 \u0000 <p>Photo-responsive organic room temperature phosphorescence (RTP) materials show broad prospects in intelligent responsive RTP materials due to their advantages of environmental friendliness and facile availability. However, dynamic regulation of RTP by light remains challenging, as the introduction of photo-responsive groups may lead to phosphorescence quenching. In this study, we designed and synthesized a photo-responsive RTP molecule 9-(1-benzothiophen-5-carbonyl)-9H-carbazole (CZ-CO-BT), utilizing benzothiophene as the photo-responsive unit and carbazole as the phosphorescent emitter. Under continuous UV irradiation, CZ-CO-BT exhibits weakening of both RTP intensity and lifetime through [2+2] cycloaddition reactions between molecules, achieving photo-responsive triplet-state luminescence regulation. Furthermore, by doping CZ-CO-BT into polymer matrix, a reversible phosphorescent switch is achieved through an oxygen-consuming and oxygen-introducing process under alternating UV light and heating treatment. Based on the unique photoswitching property of CZ-CO-BT, we explored the possibility of optical information storage, which demonstrated the great application potential of the molecule.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 15","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662428","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marcin Krajewski, Andrzej M. Witowski, Michał Maj, Sandra Musiał, Piotr Jenczyk, Mateusz Tokarczyk, Dariusz Wasik
{"title":"Incorporation of Iron-Based Nanochains Into Poly(Vinylidene Fluoride-co-Hexafluoropropylene) Films and Their Near- and Mid-Infrared Shielding Applications","authors":"Marcin Krajewski, Andrzej M. Witowski, Michał Maj, Sandra Musiał, Piotr Jenczyk, Mateusz Tokarczyk, Dariusz Wasik","doi":"10.1002/asia.70921","DOIUrl":"https://doi.org/10.1002/asia.70921","url":null,"abstract":"<div>\u0000 \u0000 <p>The addition of infrared (IR) shielding materials to glass/polymer constitutes a very attractive strategy. Taking advantage of this approach, this work demonstrates the preparation of Fe<i><sub>x</sub></i>Co<sub>1‒</sub><i><sub>x</sub></i> nanochains (NCs) (where <i>x</i> = 1.0, 0.75, and 0.25) synthesized via the magnetic-field-induced synthesis and their subsequent incorporation into the poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) films. Then, their near-infrared (NIR) and mid-infrared (MIR) shielding properties are verified with IR transmittance and thermographic imaging techniques. It is found that the average fade of IR transmittance between 1667 and 6667 nm for 0.25 wt.% of Fe, Fe<sub>0.75</sub>Co<sub>0.25</sub>, Fe<sub>0.25</sub>Co<sub>0.75</sub> NCs dispersed in PVDF-HFP film is about 15%, 56%, and 37%, respectively, while the increase of content of nanochains to 10 mg leads to a further drop to the level of 61%, 83%, and 74%, respectively. Also, the neat PVDF-HFP and PVDF-HFP filled with NCs almost do not reflect the NIR and MIR radiation. The thermographic imaging confirms the spectroscopic measurements as well as indicates that the higher content of nanochains introduced into PVDF-HFP results in a lower IR transmission coefficient. Thus, the IR shielding properties of the PVDF-HFP films can be controlled by incorporating various iron-based nanochains, and these composites open the way to superior IR antireflective and shielding applications.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 15","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Light-Activated Luminophores Based on Carbazolyl Oxime Esters for Real-Time Monitoring Photolithographic Processes","authors":"Wenjing Wang, Liming Liu, Yuchun Yang, Yincheng Chang","doi":"10.1002/asia.70923","DOIUrl":"https://doi.org/10.1002/asia.70923","url":null,"abstract":"<div>\u0000 \u0000 <p>Photoactivatable luminescent materials have emerged as promising candidates for applications in information encryption, anti-counterfeiting, and bioimaging. However, for practical application in photolithographic processes, some fundamental requirements such as material compatibility and suitability with exposure to light sources remain challenging for photo-activated luminescent materials. Herein, two radical-mediated photoinitiators, <i>oxe02</i> and <i>oxe03</i>, were developed as novel photo-activated luminescent materials and incorporated into photoresist formulations to enable direct visualization of pattern quality. In their native state, these molecules are non-luminescent; upon ultraviolet (UV) exposure, they undergo photolytic cleavage to generate radicals that subsequently initiate luminescence. Upon exposure, the photoinitiators in the photoresist are activated and emit strong luminescence, enabling direct visualization of the pattern prior to development and facilitating rapid evaluation of pattern quality. The findings not only expand the functional scope of photoinitiators in luminescent material systems but also propose a viable strategy for real-time monitoring in photolithographic processes, demonstrating significant promise for practical applications.</p>\u0000 </div>","PeriodicalId":145,"journal":{"name":"Chemistry - An Asian Journal","volume":"21 15","pages":""},"PeriodicalIF":3.2,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148662464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}