Three Birds with One Stone: Preventive Protection of Paper Materials by ZnO-PHMB and UV-531 Composite Systems

Zhang, Dahai; Pan, Qianhao; Jia, Minghao; Zhang, Xiaogang; Wang, Yapei

doi:10.1021/acs.langmuir.1c00770

Cited by 8 publications

(3 citation statements)

References 34 publications

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“…Also, coatings comprising microcrystalline cellulose/TiO 2 /fluorine/styrene-acrylate were applied to protect Xuan paper . Additionally, organic compounds, such as 2-hydroxy-4-(octyloxy)-benzophenone, had been proposed for triple protection against bacteria, UV aging, and acidification for handmade paper/old newspaper protection . However, the complexity of materials preparation, high cost, poor dispersion, and the possibility of secondary degradation (e.g., photosensitive reaction and alkaline degradation) make it a high demand and challenging to explore safe, efficient, easy-to-prepare, and environmentally friendly protective materials for paper-based relics.…”

Section: Introductionmentioning

confidence: 99%

“…12 Additionally, organic compounds, such as 2-hydroxy-4-(octyloxy)-benzophenone, had been proposed for triple protection against bacteria, UV aging, and acidification for handmade paper/old newspaper protection. 13 However, the complexity of materials preparation, high cost, poor dispersion, and the possibility of and acidic degradation rate under both UV-aging and dry-heat aging conditions. Meanwhile, CQDs-BP possesses fluorescence and room-temperature phosphorescence properties due to the presence of CQDs and can be used as an anticounterfeiting paper.…”

Section: Introductionmentioning

confidence: 99%

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Carbon Quantum Dots for Long-Term Protection against UV Degradation and Acidification in Paper-Based Relics

Zhang,

Zhao,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

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Paper-based cultural relics constitute a significant and invaluable part of human civilization and cultural heritage. However, they are highly vulnerable to environmental factors such as ultraviolet (UV) photodegradation and acidification degradation, posing substantial threats to their long-term preservation. Carbon quantum dots (CQDs), known for their outstanding optical properties, high water solubility, and good safety, offer a promising solution for slowing down UV damage and acidification of paper-based relics during storage and transportation. Herein, we propose a feasible strategy for the simple preparation of CQDs with high dispersion stability, excellent UV absorption, room-temperature phosphorescence, and photostability for the safety protection of paper. Accelerated aging experiments were conducted using UV and dry-heat aging methods on both CQD-protected paper and unprotected paper, respectively, to evaluate the effectiveness of CQD protection. The results demonstrate a slowdown in both the oxidation and acid degradation processes of the protected paper under both UV-aging and dry-heat aging conditions. Notably, CQDs with complex luminescence patterns of both fluorescence and room-temperature phosphorescence also endue them as enhanced optical anticounterfeiting materials for multifunctional paper protection. This research provides a new direction for the protection of paper-based relics with emerging carbon nanomaterials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon Quantum Dots for Long-Term Protection against UV Degradation and Acidification in Paper-Based Relics

Zhang,

Zhao,

Wang

et al. 2024

ACS Appl. Mater. Interfaces

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“…Over time, paper relics are easily damaged. Thus, studying the protection and restoration of paper relics is an essential field of cultural relics research [1].…”

Section: Introductionmentioning

confidence: 99%

Study on the Performance of Acrylic Polyurethane for the Protection of Handwriting on Paper Relics

Mao

Shi

et al. 2023

Coatings

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There are many important cultural relics in China, including many paper relics. Therefore, it is particularly important to find methods of protecting the handwriting in paper relics. This study focuses on the effects acrylic polyurethane materials have on preserving handwriting in paper relics by examining the color change and diffusion of handwriting before and after reinforcement treatments on handwriting materials, including ink, carbon ink, blue-black ink, pure blue ink, red ink, and pencil. The acrylic polyurethane materials have a certain degree of stability and enhance the handwriting of paper relics. We analyzed the acrylic polyurethane reinforcement material in terms of acid resistance, alkali resistance, oxidation resistance, dry heat aging resistance, and durability. The experimental results show that the optimal reinforcement concentration is within 15% for ink, 10% for carbon ink, 20% for blue-black ink, 15% to 20% for pure blue ink, and 3% for red ink and pencil. Finally, the surface of the reinforced paper and handwriting were observed through laser microscopy, SEM, EDS, and infrared spectroscopy and the protective effect of acrylic polyurethane reinforcement material on handwriting was determined.

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Efficient Protection of Paper‐Based Cultural Relics via In Situ Synthesis of Carbon Dots/Layered Double Hydroxide

Zhao,

Zhang,

Wang

et al. 2024

Adv Funct Materials

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Paper‐based cultural relics are of great value and have been facing irreversible damage caused by multiple factors, among which acid hydrolysis and ultraviolet photodegradation are the main processes leading to paper deterioration. Paper protection highly relies on a limited range of materials with single functions, and the design of new materials that ensure long‐term safety and efficiency by simultaneously addressing the issues of acidification and UV degradation in paper is highly desired. In this study, the introduction of carbon dots (CDs)‐enhanced layered double hydroxides (LDH) 0D/2D nanohybrids (CDs/Mg‐Al LDH)  is proposed as novel dual‐functional materials for paper protection against UV degradation and acidification. Through a CDs‐assisted in situ growth strategy, CDs/Mg‐Al LDH with ultrathin thickness (≈9.1 nm) and CDs‐intercalated structure are achieved. The CDs/Mg‐Al LDH nanohybrids demonstrate high dispersibility, strong UV absorption, and remarkable photostability, resulting in protected‐paper with decelerated acidification, oxidation, and yellowing degradation processes under both accelerated UV‐aging and dry‐heat conditions. Additionally, the protected‐paper can emit uniform blue light under 365 nm UV excitation allows for easy identification of the distributed CDs/Mg‐Al LDH within the paper, marking a unique and practical feature. This research paces a new direction for the protection of paper‐based relics with emerging carbon dots‐based 0D/2D nanomaterials.

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Three Birds with One Stone: Preventive Protection of Paper Materials by ZnO-PHMB and UV-531 Composite Systems

Cited by 8 publications

References 34 publications

Carbon Quantum Dots for Long-Term Protection against UV Degradation and Acidification in Paper-Based Relics

Carbon Quantum Dots for Long-Term Protection against UV Degradation and Acidification in Paper-Based Relics

Study on the Performance of Acrylic Polyurethane for the Protection of Handwriting on Paper Relics

Efficient Protection of Paper‐Based Cultural Relics via In Situ Synthesis of Carbon Dots/Layered Double Hydroxide

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