Two-dimensional TiC nanocrystals produced by molten salt treatment of carbon black and Ti2AlC

Abstract In this study, 2D TiC nanosheets were successfully synthesized by reacting carbon black and Ti2AlC in a molten NaCl/KCl eutectic salt. The effects of salt content and ratio of raw materials on the phase composition and purity of TiC products were systematically investigated. Results showed that carbon black enhanced the total decomposition of Ti2AlC to TiC, Al, and Al3Ti at 1100 °C. The introduction of molten salt ensured the formation of TiC nanosheets. Excess carbon influenced the synthesis of high TiC content by removing the Al and Al3Ti by-products. TiC nanosheets had a thickness of approximately 10–20 nm and a length of approximately 150–200 nm. A possible synthesis mechanism of TiC nanosheets was proposed.

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Preparation of β-Sialon from Fly Ash by Carbothermal Reduction-Nitridation Reaction

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.368-372.910 ◽

2008 ◽

Vol 368-372 ◽

pp. 910-912 ◽

Cited By ~ 4

Author(s):

Jun Tong Huang ◽

Ming Hao Fang ◽

Yan Gai Liu ◽

Zhao Hui Huang

Keyword(s):

Fly Ash ◽

Carbon Black ◽

Carbon Content ◽

Carbothermal Reduction ◽

Single Phase ◽

Raw Materials ◽

Synthesis Mechanism ◽

Nitridation Reaction

Single phase Sialon was synthesized successfully from fly ash by carbothermal reductionnitridation reaction in this paper. The effects of synthesizing temperature (1200°C, 1300°C, 1400°C and 1450°C) and carbon content (stoichiometric content, exceeding 10%, 50% and 100%) on the final production were studied by XRD and SEM. Synthesis mechanism of β-Sialon was also analysized. The results indicated that single phase β-Sialon with z=3 was obtained using fly ash as raw materials and carbon black of stoichiometric content as reducer by carbothermal reduction- nitridation reaction in flow nitrogen at 1450°C for 3h. Temperature and content of carbon had significant effect on the synthesis of β-Sialon.

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Wine By-Products as Raw Materials for the Production of Biopolymers and of Natural Reinforcing Fillers: A Critical Review

Polymers ◽

10.3390/polym13030381 ◽

2021 ◽

Vol 13 (3) ◽

pp. 381

Author(s):

Alessandro Nanni ◽

Mariafederica Parisi ◽

Martino Colonna

Keyword(s):

Critical Review ◽

Raw Materials ◽

Green Revolution ◽

Building Blocks ◽

Poly Lactic Acid ◽

Butylene Succinate ◽

Reinforcing Fillers ◽

Plastic Industry ◽

Review Reports ◽

By Products

The plastic industry is today facing a green revolution; however, biopolymers, produced in low amounts, expensive, and food competitive do not represent an efficient solution. The use of wine waste as second-generation feedstock for the synthesis of polymer building blocks or as reinforcing fillers could represent a solution to reduce biopolymer costs and to boost the biopolymer presence in the market. The present critical review reports the state of the art of the scientific studies concerning the use of wine by-products as substrate for the synthesis of polymer building blocks and as reinforcing fillers for polymers. The review has been mainly focused on the most used bio-based and biodegradable polymers present in the market (i.e., poly(lactic acid), poly(butylene succinate), and poly(hydroxyalkanoates)). The results present in the literature have been reviewed and elaborated in order to suggest new possibilities of development based on the chemical and physical characteristics of wine by-products.

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A Brief Review on Solvent-Free Synthesis of Zeolites

Materials ◽

10.3390/ma14040788 ◽

2021 ◽

Vol 14 (4) ◽

pp. 788

Author(s):

Jinlin Mei ◽

Aijun Duan ◽

Xilong Wang

Keyword(s):

High Efficiency ◽

Raw Materials ◽

Solvent Free ◽

High Yield ◽

Control Synthesis ◽

Mechanical Mixing ◽

Synthesis Mechanism ◽

Wastewater Pollution ◽

Low Efficiency ◽

Solvent Free Synthesis

The traditional hydrothermal method to prepare zeolite will inevitably use a large amount of water as a solvent, which will lead to higher autogenous pressure, low efficiency, and wastewater pollution. The solvent-free method can be used to synthesize various types of zeolites by mechanical mixing, grinding, and heating of solid raw materials, which exhibits the apparent advantages of high yield, low pollution, and high efficiency. This review mainly introduces the development process of solvent-free synthesis, preparation of hierarchical zeolite, morphology control, synthesis mechanism and applications of solvent-free methods. It can be believed that solvent-free methods will become a research focus and have enormous industrial application potential.

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Anti-Fatigue Effect of a Dietary Supplement from the Fermented By-Products of Taiwan Tilapia Aquatic Waste and Monostroma nitidum Oligosaccharide Complex

Nutrients ◽

10.3390/nu13051688 ◽

2021 ◽

Vol 13 (5) ◽

pp. 1688

Author(s):

Ying-Ju Chen ◽

Chun-Yen Kuo ◽

Zwe-Ling Kong ◽

Chin-Ying Lai ◽

Guan-Wen Chen ◽

...

Keyword(s):

Dietary Supplement ◽

Exercise Performance ◽

Physical Training ◽

Raw Materials ◽

Weight Bearing ◽

Nitrogen Concentration ◽

Lactate Concentration ◽

Fatigue Effect ◽

Monostroma Nitidum ◽

By Products

The Taiwan Tilapia is an important aquaculture product in Taiwan. The aquatic by-products generated during Tilapia processing, such as fish bones and skin, are rich in minerals and protein. We aimed to explore the effect of a dietary supplement, comprising a mixture of fermented Tilapia by-products and Monostroma nitidum oligosaccharides as the raw materials, combined with physical training on exercise performance and fatigue. We used a mouse model that displays a phenotype of accelerated aging. Male senescence-accelerated mouse prone-8 (SAMP8) mice were divided into two control groups—with or without physical training—and supplemented with different doses (0.5 times: 412 mg/kg body weight (BW)/day; 1 time: 824 mg/kg BW/day; 2 times: 1648 mg/kg BW/day) of fermented Tilapia by-products and Monostroma nitidum oligosaccharide-containing mixture and combined with exercise training groups. Exercise performance was determined by testing forelimb grip strength and with a weight-bearing exhaustive swimming test. Animals were sacrificed to collect physical fatigue-related biomarkers. Mice dosed at 824 or 1648 mg/kg BW/day showed improvement in their exercise performance (p < 0.05). In terms of biochemical fatigue indicators, supplementation of 824 or 1648 mg/kg BW/day doses of test substances could effectively reduce blood urea nitrogen concentration and lactate concentration and increase the lactate ratio (p < 0.05) and liver glycogen content post-exercise (p < 0.05). Based on the above results, the combination of physical training and consumption of a dietary supplementation mixture of fermented Tilapia by-products and Monostroma nitidum oligosaccharides could improve the exercise performance of mice and help achieve an anti-fatigue effect.

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Optimization of Inexpensive Agricultural By-Products as Raw Materials for Bacitracin Production in Bacillus licheniformis DW2

Applied Biochemistry and Biotechnology ◽

10.1007/s12010-017-2489-1 ◽

2017 ◽

Vol 183 (4) ◽

pp. 1146-1157 ◽

Cited By ~ 13

Author(s):

Qin Wang ◽

Hui Zheng ◽

Xia Wan ◽

Hongfeng Huang ◽

Junhui Li ◽

...

Keyword(s):

Bacillus Licheniformis ◽

Raw Materials ◽

By Products

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Utilization of Porcelain Tile Polishing Residue

Defect and Diffusion Forum ◽

10.4028/www.scientific.net/ddf.410.699 ◽

2021 ◽

Vol 410 ◽

pp. 699-703

Author(s):

Valeriya È. Shvarczkopf ◽

Irina A. Pavlova ◽

Elena P. Farafontova

Keyword(s):

Glassy Phase ◽

Raw Materials ◽

Foam Glass ◽

Mixture Preparation ◽

Cleaning Equipment ◽

Oil Paints ◽

Roofing Materials ◽

Sodium Feldspar ◽

By Products ◽

Porcelain Tile

The research focuses on the properties of by-products formed in the production of porcelain stoneware: polishing residue and residue of the mixture-preparation shop. The polishing residue consists of glassy phase (80%), quartz (14%), mullite (5%). Residue of the mixture-preparation shop consists of quartz (~ 18%), muscovite (~ 6.9%), kaolinite (~ 20.5%), calcium-sodium feldspar (~ 51.4%), diopside (~ 2.98%). Polishing residue occurs when polishing porcelain stoneware to create a glossy surface and when polishing the side faces of porcelain stoneware to obtain accurate tile geometry. The particle size of the polishing residue is less than 0.2 mm, and the residue of the mixture-preparation shop is less than 40 microns. Residue of the mixture-preparation shop is formed when cleaning equipment: mills, mixers, slipways, etc. The ways of utilization of by-product are follows: as a filler for the silicate production; for polymer-cement, water-dispersion and oil paints; as a filler for the production of roofing materials, bituminous roofing mastics based on organic binders; raw materials for the production of foam glass materials and products.

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Natural Polymers for Biodegradable Dressings to Save the Environment

International Journal of Nanotechnology and Nanomedicine ◽

10.33140/ijnn.06.02.01 ◽

2021 ◽

Vol 6 (2) ◽

Keyword(s):

Greenhouse Gas Emissions ◽

Greenhouse Gas ◽

Renewable Resources ◽

Raw Materials ◽

Current System ◽

Future Generations ◽

Natural Polymers ◽

Surgical Masks ◽

By Products ◽

Global Water

The current fashion system uses high volumes of non-renewable resources to produce clothes, being responsible for 10% of the global greenhouse gas emissions into the atmosphere every year and 20%of the global water wasted. At the same time people are buying 60%more clothing than 15 Years ago, which going in the landfills, causes 92 million tons of waste each year. This waste has been further increased by the surgical masks used for COVID-19 pandemic. Thus, a new way of designing and producing clothing needs to be incorporated into the current system to facilitate its recycling making it more circular. New tissues, therefore, are proposed made by natural polysaccharides, embedded by micro- Nano capsules of chitin Nano fibrils and Nano lignin all obtained as by- products from food and forestry waste respectively. Thus, pollution and waste will be reduced and the natural raw materials will be maintained for the future generations.

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Electrolytic synthesis of ZrSi/ZrC nanocomposites from ZrSiO4 and carbon black powder in molten salt

International Journal of Materials Research (formerly Zeitschrift fuer Metallkunde) ◽

10.1515/ijmr-2020-1110707 ◽

2020 ◽

Vol 111 (7) ◽

pp. 581-586

Author(s):

Li Ming ◽

Wu Xiufeng

Keyword(s):

Electron Microscopy ◽

High Temperature ◽

Carbon Black ◽

Molten Salt ◽

Cell Voltage ◽

Black Powder ◽

X Ray ◽

Carbon Black Powder ◽

Transmission Electron ◽

A Cell

Abstract ZrSi/ZrC nanocomposites have stable high-temperature properties, where conventional materials cannot meet increasingly demanding high-temperature environments. In this paper, the microstructure and electrochemical reduction mechanism of ZrSi/ZrC nanocomposites have been studied. A mixture of ZrSiO4 and carbon black powder was processed using ball grinding, sheet pressing, and sintering, and cylindrically-sintered sheet was prepared as the cathode for the electrolytic work. A high purity graphite rod was utilized as the anode.The microstructure of the electrolytic product was characterized and analyzed using X-ray diffraction, scanning electron microscopy equipped with energy-dispersive X-ray spectroscopy, and transmission electron microscopy. The experimental results showed that the diameter of the as-synthesized ZrSi/ ZrC fibers typically range between 100-400 nm when produced by the electrolysis of sintered pellets in equimolar CaCl2-NaCl molten salt at 850°C with a cell voltage of 2.8 V for 20 h under an argon atmosphere. The nanofibers were formed in core-shell microstructures that overlap and grow.

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Effects of Dietary Level of Rice Distiller’s Dried Grains on Performance and Meat Quality of Chickens

Indian Journal of Animal Research ◽

10.18805/ijar.b-1392 ◽

2021 ◽

Author(s):

P.K. Dang ◽

N.T.P. Giang ◽

T.T. Nguyen ◽

S. Chu-Ky ◽

N.C. Oanh ◽

...

Keyword(s):

Meat Quality ◽

Broiler Chickens ◽

Animal Feed ◽

Raw Materials ◽

Control Diet ◽

Broiler Chicks ◽

Meat Yield ◽

Broiler Performance ◽

National University ◽

By Products

Background: In Vietnam, animal feed mainly depends on imported raw materials, while available agro-industrial by-products are often released into the environment and only a its unsubstantial portion used as an animal feed. Therefore, efficient use of these by-products as animal feed is essential. This work aimed to evaluate the effect of dietary levels of rice distiller’s dried grain (Rice DDG) on broiler performance, meat yield and meat quality. Methods: The research was conducted at the experimental station, Vietnam National University of Agriculture, Vietnam, from May to September 2020. A total of 240 a day-old broiler chicks were randomly assigned into 4 groups with 3 replications to receive 4 diets with different levels of RDDG at 0, 5, 8 and 10% for 14 weeks. Growth, meat yield and meat quality were estimated. Result: ADG was higher in broiler chickens fed diets with rice DDG compared to that in control diet at 12 and 14 weeks (P less than 0.05) while ADFI and FCR were not affected by the diets. There were significantly no differences in meat yield and quality among the diets. In conclusion, rice DDG could be used to partially replace main ingredients in chicken diets.

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