Used dye adsorbent derived N-doped magnetic carbon foam with enhanced electromagnetic wave absorption performance

Lou, Zhichao; Li, Ru; Liu, Jie; Wang, Qiuyi; Zhang, Yao; Li, Yanjun

doi:10.1016/j.jallcom.2020.157286

Cited by 46 publications

(11 citation statements)

References 66 publications

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“…With the reduction of hemicellulose, the matrix filling between cellulose is reduced, which leads to the reduction of hydrogen bonding. Thus, the parenchyma cell structure shrinks and deforms sharply during thermal modification after the decomposition of hemicellulose and cellulose content, resulting in the production of more gaps between sclerenchyma cells and parenchyma cells [28].…”

Section: Sem Analysismentioning

confidence: 99%

Improving Biomass-Degradation Properties and Nano-Mechanics of Moso Bamboo via a Simple Nitrogen Heat Treatment

Xie

Dai³

et al. 2022

Forests

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Nitrogen is generally used as a protective gas to provide an oxygen-free environment for the heat treatment of biomaterials. In order to indicate the effect of nitrogen heat treatment of bamboo, the changes in terms of the chemical composition, chemical functional groups, cellulose crystallinity index, surface color, micro-mechanics and anti-mildew properties of bamboo, and the interaction relationship among the properties, were analyzed. The mass loss ratio of treated bamboo samples increased significantly during the process of thermal modification. In detail, the hemicellulose exhibited a decreasing tendency from 23.7% to 16.6%, while the lignin content presented an increasing tendency. The decreased hemicellulose and cellulose contents are a benefit to enhancing lignin content and crystallinity degree, thus increasing the modulus of elasticity and hardness of treated bamboo cell walls. The obtained bamboo sample treated at 190 °C/3 h displayed the best micro-mechanical properties. It presented a maximum modulus of elasticity of 22.1 GPa and a hardness of 0.97 GPa. Meanwhile, the lignin and cellulose content was proven to increase in the bamboo surface in chemical composition analysis, resulting in lower free-hydroxyl groups on the bamboo surface. Thus, the contact angle value of bamboo increased. Furthermore, nitrogen thermal modification positively contributed to the mildew resistance of bamboo specimens.

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Section: Sem Analysismentioning

confidence: 99%

Improving Biomass-Degradation Properties and Nano-Mechanics of Moso Bamboo via a Simple Nitrogen Heat Treatment

Xie

Dai³

et al. 2022

Forests

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“…The release of this effluent without further treatment into water bodies results in ecosystem damage, water shortage and degeneration [1,2,3,4]. The direct discharge of these effluent into natural water sources results in damages to the ecosystem and induction of mutagenic effects on mammals' organs, which greatly threatens human health [5]. Dyes are very toxic, stable, highly visible in trace amount, and not easily biodegradable.…”

Section: Introductionmentioning

confidence: 99%

Comparison of dye wastewater treatment methods: A review

Adesanmi¹,

Hung²,

Paul³

et al. 2022

GSC Adv. Res. Rev.

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Wastewater is produced by numerous dyes producing and dye consuming industries in their process activities especially the textile industry. These effluents become toxic and harmful to the living things and the environment if not properly treated before being discharged to the environment. In recent decades dye wastewater has been becomes a growing water pollution problem because it is one of the most difficult to treat. To put an end to this problem, viable, efficient, and sustainable method of treatment of dye wastewater and color removal needs to be established. Several research papers have been done over the years on various treatment method of dye wastewater with evolving options; this paper is to bring together both the conventional and new methods. Some of the conventional and new methods researched over the years include activated sludge, coagulation, adsorption, membrane separation processes and electrochemical process etc. Although there is currently no uniform standard or method of treatment universally adopted, many countries have put in place allowable limits of composition of dischargeable wastewater. This paper seeks to explore which methods are highly efficient, produces manageable and recyclable waste and a combination/hybrid treatment option of these methods to achieve maximum color removal.

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“…3,4 Hence, harvesting the excess EM waves and converting them into thermal energy using a material design strategy (based on the material intrinsic dielectric relaxation and conductive loss) provides a feasible solution to address EM pollution. [5][6][7] The design criteria for an ideal EM absorber include strong EM absorption (calculated by reection loss (RL)), wideband effective absorption (f E ; frequency region with RL < À10 dB, corresponding to >90% EM absorption), small thickness (referring to the thickness of absorption layer made by dispersing the EM absorber into a matrix), and low mass density (lightweight). [8][9][10] Recently, the design of EM absorbers based on 2D nanomaterials has attracted much attention because of their unique atomic arrangement.…”

Section: Introductionmentioning

confidence: 99%

Engineering defects in 2D g-C₃N₄ for wideband, efficient electromagnetic absorption at elevated temperature

Zhou

et al. 2021

J. Mater. Chem. A

136

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Used dye adsorbent derived N-doped magnetic carbon foam with enhanced electromagnetic wave absorption performance

Cited by 46 publications

References 66 publications

Improving Biomass-Degradation Properties and Nano-Mechanics of Moso Bamboo via a Simple Nitrogen Heat Treatment

Improving Biomass-Degradation Properties and Nano-Mechanics of Moso Bamboo via a Simple Nitrogen Heat Treatment

Comparison of dye wastewater treatment methods: A review

Engineering defects in 2D g-C₃N₄ for wideband, efficient electromagnetic absorption at elevated temperature

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Used dye adsorbent derived N-doped magnetic carbon foam with enhanced electromagnetic wave absorption performance

Cited by 46 publications

References 66 publications

Improving Biomass-Degradation Properties and Nano-Mechanics of Moso Bamboo via a Simple Nitrogen Heat Treatment

Improving Biomass-Degradation Properties and Nano-Mechanics of Moso Bamboo via a Simple Nitrogen Heat Treatment

Comparison of dye wastewater treatment methods: A review

Engineering defects in 2D g-C3N4 for wideband, efficient electromagnetic absorption at elevated temperature

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Engineering defects in 2D g-C₃N₄ for wideband, efficient electromagnetic absorption at elevated temperature