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12 pages, 4516 KiB

Open AccessArticle

Preparation of CS-LS/AgNPs Composites and Photocatalytic Degradation of Dyes

by Jiabao Wu, Xinpeng Chen, Aijing Li, Tieling Xing and Guoqiang Chen

Materials 2024, 17(5), 1214; https://doi.org/10.3390/ma17051214 - 06 Mar 2024

Viewed by 589

Abstract

Synthetic dyes are prone to water pollution during use, jeopardizing biodiversity and human health. This study aimed to investigate the adsorption and photocatalytic assist potential of sodium lignosulfonate (LS) in in situ reduced silver nanoparticles (AgNPs) and chitosan (CS)-loaded silver nanoparticles (CS-LS/AgNPs) as [...] Read more.

Synthetic dyes are prone to water pollution during use, jeopardizing biodiversity and human health. This study aimed to investigate the adsorption and photocatalytic assist potential of sodium lignosulfonate (LS) in in situ reduced silver nanoparticles (AgNPs) and chitosan (CS)-loaded silver nanoparticles (CS-LS/AgNPs) as adsorbents for Rhodamine B (RhB). The AgNPs were synthesized by doping LS on the surface of chitosan for modification. Fourier transform infrared (FT-IR) spectrometry, energy-dispersive spectroscopy (EDS), scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS) were used to confirm the synthesis of nanomaterials. The adsorption and photocatalytic removal experiments of RhB were carried out under optimal conditions (initial dye concentration of 20 mg/L, adsorbent dosage of 0.02 g, time of 60 min, and UV power of 250 W), and the kinetics of dye degradation was also investigated, which showed that the removal rate of RhB by AgNPs photocatalysis can reach 55%. The results indicated that LS was highly effective as a reducing agent for the large-scale production of metal nanoparticles and can be used for dye decolorization. This work provides a new catalyst for the effective removal of dye from wastewater, and can achieve high-value applications of chitosan and lignin. Full article

(This article belongs to the Special Issue Properties and Applications of Advanced Textile Materials)

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Review

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23 pages, 3589 KiB

Open AccessReview

Regenerated Fiber’s Ideal Target: Comparable to Natural Fiber

by Guohongfang Tan, Tianshuo Jia, Zhenzhen Qi and Shenzhou Lu

Materials 2024, 17(8), 1834; https://doi.org/10.3390/ma17081834 - 16 Apr 2024

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Abstract

The toughness of silk naturally obtained from spiders and silkworms exceeds that of all other natural and man-made fibers. These insects transform aqueous protein feedstocks into mechanically specialized materials, which represents an engineering phenomenon that has developed over millions of years of natural [...] Read more.

The toughness of silk naturally obtained from spiders and silkworms exceeds that of all other natural and man-made fibers. These insects transform aqueous protein feedstocks into mechanically specialized materials, which represents an engineering phenomenon that has developed over millions of years of natural evolution. Silkworms have become a new research hotspot due to the difficulties in collecting spider silk and other challenges. According to continuous research on the natural spinning process of the silkworm, it is possible to divide the main aspects of bionic spinning into two main segments: the solvent and behavior. This work focuses on the various methods currently used for the spinning of artificial silk fibers to replicate natural silk fibers, providing new insights based on changes in the fiber properties and production processes over time. Full article

(This article belongs to the Special Issue Properties and Applications of Advanced Textile Materials)

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21 pages, 8259 KiB

Open AccessReview

Up to Date Review of Nature-Inspired Superhydrophobic Textiles: Fabrication and Applications

by Haipei Ge, Yu Liu and Fujuan Liu

Materials 2023, 16(21), 7015; https://doi.org/10.3390/ma16217015 - 02 Nov 2023

Cited by 1 | Viewed by 1650

Abstract

In recent years, with the rapid development of the economy and great progress in science and technology, people have become increasingly concerned about their quality of life and physical health. In order to pursue a higher life, various functional and biomimetic textiles have [...] Read more.

In recent years, with the rapid development of the economy and great progress in science and technology, people have become increasingly concerned about their quality of life and physical health. In order to pursue a higher life, various functional and biomimetic textiles have emerged one after another and have been sought after by people. There are many animal and plant surfaces with special wettability in nature, and their unique “micro-nano structures” and low surface energy have attracted extensive attention from researchers. Researchers have prepared various textiles with superhydrophobic features by mimicking these unique structures. This review introduces the typical organisms with superhydrophobicity in nature, using lotus, water strider, and cicada as examples, and describes their morphological features and excellent superhydrophobicity. The theoretical model, commonly used raw materials, and modification technology of superhydrophobic surfaces are analyzed. In addition, the application areas and the current study status of superhydrophobic surfaces for textiles are also summarized. Finally, the development prospects for superhydrophobic textiles based on bionic technology are discussed. Full article

(This article belongs to the Special Issue Properties and Applications of Advanced Textile Materials)

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