Chlorine Dioxide Bleaching

Bajpai, Pratima

doi:10.1016/b978-0-444-59421-1.00006-5

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…31 Bleaching effects were observed due to reduced chromophores in the processing. 32 Figure 2b shows that the light-brown color of NW faded away after delignification. Pores were generated in the middle lamellar region and cell wall due to lignin removal.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

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Metallic Wood through Deep-Cell-Wall Metallization: Synthesis and Applications

Xu,

Garemark,

Ram

et al. 2024

ACS Appl. Mater. Interfaces

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Metallic wood combines the unique structural benefits of wood and the properties of metals and is thus promising for applications ranging from heat transfer to electromagnetic shielding to energy conversion. However, achieving metallic wood with full use of wood structural benefits such as anisotropy and multiscale porosity is challenging. A key reason is the limited mass transfer in bulk wood where fibers have closed ends. In this work, programmed removal of cell-wall components (delignification and hemicellulose extraction) was introduced to improve the accessibility of cell walls and mass diffusion in wood. Subsequent low-temperature electroless Cu plating resulted in a uniform continuous Cu coating on the cell wall, and, furthermore, Cu nanoparticles (NPs) insertion into the wood cell wall. A novel Cu NPs-embedded multilayered cell-wall structure was created. The unique structure benefits compressible metal-composite foam, appealing for stress sensors, where the multilayered cell wall contributes to the compressibility and stability. The technology developed for wood metallization here could be transferred to other functionalizations aimed at reaching fine structure in bulk wood.

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Section: ■ Results and Discussionmentioning

confidence: 99%

“…Delignification using NaClO 2 could selectively degrade lignin through ring-opening oxidative attack while preserving the carbohydrates . Bleaching effects were observed due to reduced chromophores in the processing Figure b shows that the light-brown color of NW faded away after delignification.…”

Section: Resultsmentioning

confidence: 99%