Reversible Photoresponsive Multicolor Fluorescent Carbon Dots for Repeatable Dynamic Information Encoding DOI
Qiang Fu,

Shouhong Sun,

Zhanhua Dong

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

Photoresponsive carbon dots (CDs) materials have broad application prospects in fields such as ultraviolet (UV) light detection, advanced anticounterfeiting, and information encryption. However, developing color-tunable, photoresponsive CDs that can respond quickly reversibly remains a significant challenge. In this work, we successfully achieved multicolor fluorescence emission from by surface-modifying them with different concentrations of tetraethylenepentamine (TEPA), forming naphthalimide structures to UV light. Importantly, the response time reached fast 0.5 s, color reversibility was through simple shaking without need for additional stimuli. Research has shown generation is due formation on surface CDs, which produce radicals under continuous exposure. The TEPA lead varying amounts radicals, thereby affecting energy bandgap resulting changes. On basis differences times colors, further developed repeatable dynamic encoding system enables storage

Язык: Английский

Metal–organic frameworks for organic transformations by photocatalysis and photothermal catalysis DOI
Hong‐Guang Jin, Pengcheng Zhao, Yunyang Qian

и другие.

Chemical Society Reviews, Год журнала: 2024, Номер 53(18), С. 9378 - 9418

Опубликована: Янв. 1, 2024

Organic transformation by light-driven catalysis, especially, photocatalysis and photothermal denoted as photo(thermal) is an efficient, green, economical route to produce value-added compounds. In recent years, owing their diverse structure types, tunable pore sizes, abundant active sites, metal-organic framework (MOF)-based catalysis has attracted broad interest in organic transformations. this review, we provide a comprehensive systematic overview of MOF-based for First, the general mechanisms, unique advantages, strategies improve performance MOFs are discussed. Then, outstanding examples transformations over introduced according reaction type. addition, several representative advanced characterization techniques used revealing charge kinetics intermediates presented. Finally, prospects challenges field proposed. This review aims inspire rational design development materials with improved catalysis.

Язык: Английский

Процитировано

59
Thermo‐Guest Programmable Structural Adaptability with Bistable Empty States and Photothermal Conversion in a Coordination Framework DOI Open Access

Zhouling Wu,

Xing Li, Zhikun Liu

и другие.

Advanced Functional Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 19, 2025

Abstract Stimuli‐responsive programmable materials exhibit remarkable potential for smart applications due to their ability attain multi‐stable states through structural adaptability upon guest molecule removal or exchange. However, achieving designability remains challenging, particularly in maintaining the crystallinity single‐crystal‐to‐single‐crystal (SCSC) transformations and ensuring tunable activation. In this study, it is demonstrated that SCSC between an empty monoclinic framework triclinic can be manipulated stimuli combining various activations molecules. Reversible switching facilitated by MeOH adsorption heating‐induced transformations, whereas H 2 O alone cannot directly induce transformation. Instead, must first adsorb N,N ‐Dimethylformamide (DMF) molecules form a new DMF‐adsorbed subsequently undergoes mild activation yield framework. These interconvertible frameworks differ photothermal conversion performance selectively cause discoloration of CuSO 4 ·5H dehydration. Photothermal temperatures ultimately transformation framework, attaining up 640 K within 15 s under 808 nm laser irradiation (1.7 W cm −2 ). Potential energy calculations single‐crystal data reveal driven varying affinities pore environments different

Язык: Английский

Процитировано

1
Synergistic Photochromism, Fluorescence Switching, and Photomagnetism of Three Mn(II) Complexes Based on a Thiazolothiazole Extended Viologen Derivative DOI

Bohong Gao,

Xinli Liu, Gang Li

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 3, 2025

Multifunctional photochromic hybrid materials have attracted great attention due to their wide prospects in information storage, molecular switches, and sensors. Herein, three new coordination polymers (CPs) with paramagnetic Mn2+ ions, namely [Mn2(TTVP)(m-BDC)2] (1), [Mn3(TTVP)(p-BDC)3(H2O)2]·0.5H2O (2), [Mn(TTVP)(H2O)4]·(4,4'-BPC)·2H2O (3) been synthesized (TTVP = 2,5-bis(pyridinium-4-yl)thiazolo[5,4-d]thiazole propionate, m-H2BDC isophthalic acid, p-H2BDC terephthalic 4,4'-H2BPC 4,4'-diphenyldicarboxylic acid). Interestingly, under Ultraviolet (UV) light irradiation, these compounds exhibit distinct performances photoinduced electron transfer (PIET) between aromatic carboxylic acids TTVP, as validated by spectroscopic structural analyses. The coloration kinetics final states are finely tuned modulating the number strength of weak interactions donors (EDs) acceptors (EAs). Furthermore, complexes magnetization enhancement at room temperature, while 2 3 reversible fluorescence modulation during coloration-decoloration cycles. introduction photoregulated fluorescent magnetism into PIET presents a promising approach for development multifunctional materials, holding potential range applications.

Язык: Английский

Процитировано

1
Pioneering radiation dosimetry and photothermal conversion in a photochromic and radiochromic thorium cluster DOI
Jingqi Ma, Junpu Yang, Huangjie Lu

и другие.

Science China Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

Язык: Английский

Процитировано

0
Water-Stable Al3Ni4 Polynuclear Heterometallic Compound for Near-Infrared Photothermal Conversion DOI
Yanyan Gao, Lixing Zhao,

Qingyu Du

и другие.

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Апрель 18, 2025

In this paper, a polynuclear heterometallic compound (H3O)[Al3Ni4(OH)6(MBA-NO2)6(H2O)6] (Al3Ni4, H2MBA-NO2 = 2-hydroxy-3-methoxy-5-nitrobenzoic acid) with seven-star disk metal core has been synthesized by the solvothermal method. Al3Ni4 good stability in water and several organic solvents, its solid powder shows photothermal effect under 980 nm laser irradiation, temperature can reach 138.8 °C within 100 s 1.0 W cm-2 power irradiation. Considering effect, evaporation of was measured. It be further used as material seawater evaporation.

Язык: Английский

Процитировано

0
Growth Environment-Driven Structural Adaptability Enabling Chirality in a Spin-Crossover Framework DOI
Yuting Yang,

B. Y. Jin,

Yuqiao Chai

и другие.

Chemistry of Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 23, 2025

Язык: Английский

Процитировано

0
Reversible Photoresponsive Multicolor Fluorescent Carbon Dots for Repeatable Dynamic Information Encoding DOI
Qiang Fu,

Shouhong Sun,

Zhanhua Dong

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

Photoresponsive carbon dots (CDs) materials have broad application prospects in fields such as ultraviolet (UV) light detection, advanced anticounterfeiting, and information encryption. However, developing color-tunable, photoresponsive CDs that can respond quickly reversibly remains a significant challenge. In this work, we successfully achieved multicolor fluorescence emission from by surface-modifying them with different concentrations of tetraethylenepentamine (TEPA), forming naphthalimide structures to UV light. Importantly, the response time reached fast 0.5 s, color reversibility was through simple shaking without need for additional stimuli. Research has shown generation is due formation on surface CDs, which produce radicals under continuous exposure. The TEPA lead varying amounts radicals, thereby affecting energy bandgap resulting changes. On basis differences times colors, further developed repeatable dynamic encoding system enables storage

Язык: Английский

Процитировано

0