MOLECULES
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2022
·Vol. 27
·期 19
·6507
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IF 4.927
Huwei Xing,Yongsheng Fei,Jingru Cheng,Congcong Wang,Jingjing Zhang,Chenxi Niu,Qian Fu,Jiali Cheng,Lingbin Lu
In this study, a green, highly efficient and low energy consumption preparation method of cellulose nanofiber (CNF) was developed by using agricultural and forestry waste durian rinds as raw materials. The power of ultrasonic treatment was successfully reduced to only 360 W with low molecular weight liquid DMSO. The obtained durian rind-based CNF had a diameter of 8–20 nm and a length of several micrometers. It had good dispersion and stability in water, and could spontaneously cross-link to form hydrogel at room temperature when the concentration was more than 0.5%. The microscopic morphology and compressive properties of CNF aerogels and composite cellulose aerogels prepared from durian rind-based CNF were evaluated. It was found that CNF could effectively prevent the volume shrinkage of aerogel, and the concentration of CNF had a significant effect on the microstructure and mechanical properties of aerogel. The CNF aerogel with 1% CNF exhibited a sheet structure braced by fibers, which had the strongest compression performance. The porosity of CNF aerogels was high to 99%. The compressive strength of the composite cellulose aerogel with durian rind-based CNF was effectively enhanced.Keywords:durian rind;cellulose nanofiber;dimethyl sulfoxide;ultrasonic;aerogel
研究领域:
材料科学
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环境科学
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产品关联
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2023
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IF 5.2
Tao Liu
How to use simple and effective methods to achieve the recycling of discarded durian shell (DP) is still a huge challenge. Herein, the one-step in situ hydrophobic modification method based on self-generated surface roughness of low surface energy polysiloxane nanofilaments is proposed to prepare natural armor-protecting absorbent from discarded DP while imparting the absorbent versatility. This method gives the absorbent outstanding oil-water selectivity . For the absorption of chloroform , the absorbent can reach the absorption equilibrium in only 10 s, holding rapid absorption kinetics. The absorbent also shows a good recyclability and high oil retention capacity. In addition, the hydrophobicity also allows the absorbent to remove particulate pollutants from the surface, holding exceptional self-cleaning ability. Direct turning the pristine DP into the multifunctional material provides simpler preparation process, which can be used as a new design idea for the practical application of the DP.
研究领域:
材料科学
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环境科学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2023
·
IF 6.7
Xiaozhen Zhang,Han Yu,Yanhua Song,Jingyao Li,Fangke Wang,Ruyan Xie,Shuzhe Zhang,Haifeng Zou
Organic contaminants in the water environment and liquid foods have posed a great threat to the environment as well as human well-being, and the low catalytic activity of traditional TiO 2 photocatalysts limits its further application. Here, inspired by nature, a novel hydrogenated rambutan-like hollow TiO 2 (denoted as HRT) was synthesized by facile hydrothermal treatment and in-situ hydrogenation reduction steps. The protruding spikes on the surface of the 3D rambutan-like hollow structure build a fast channel for charge transfer, the suitable cavity enhances light scattering and collection. The available inner/outer surface can bind contaminants more rapidly which facilitates transportation of photo-generated electrons. Relying on its special structure and abundant surface defects, HRT exhibits excellent photocatalytic degradation property. Under visible light irradiation, the photodegradation rate of rhodamine B (RhB) by HRT nearly reached 100.0%, and 80.0% for tetracycline (TC) within only 10 min, whose photocatalytic activity was 6.45 and 2.08 times higher than that of RT, respectively. Moreover, the innovative and practical application of HRT to the degradation of TC in milk revealed favorable degradation efficiency (71.0%) and salient catalytic reusability after five cycles. This work provides a new perspective on the purification of multiple organic contaminants in aqueous systems, points the way to the intractable problem of removing antibiotics from liquid foods and expands the application fields of semiconductor photocatalysts.
研究领域:
环境科学
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材料科学
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产品关联
DOI
高影响因子
Food Packaging and Shelf Life
·
2024
·
IF 8.5
Guang Wu,Shuangdi Hou,Qingchun Yin,Li Guo,Hao Deng
In this study, a series of chitosan/copper nanocomposites (CS/Cu-NCs) served as catalyzers for VC to remove O 2 in food packages were successfully synthesized, characterized, and further utilized to prepare an active modified O 2 /CO 2 preservative. Transmission electron microscope, ultraviolet-visible, and infrared spectra confirmed CS/Cu-NCs #1–3 were successfully synthesized. Three components of the preservative were optimized, and the best formulation was: CS/Cu-NCs #2: VC: NaHCO 3 =0.5:1.5:0.15. It maintained relatively stable O 2 /CO 2 in the package at 10℃. Fresh-cut durian treated with 0 g (CK), 1.15 g (T1), 2.3 g (T2), and 3.45 g (T3) preservatives were stored at 10℃. Results showed that T1 group exhibited significantly ( P <0.05) higher firmness and VC content compared with CK at 12 d, indicating the best qualities. Key respiratory enzyme analyses verified that decreasing SDH, increasing G-6-PDH and 6-PGDH contributed mostly to the superior qualities of T1 group. This study could provide a prospective solution for packaged fresh-cut durian.
研究领域:
食品科学
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材料科学
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生物技术
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2022
·Vol. 23
·期 11
·5900
·
IF 6.208
Zhangzhen Cai,Qi Liu,Haoxin Li,Jingyi Wang,Guoyu Tai,Fan Wang,Jiangang Han,Yongli Zhu,Guangyu Wu
Recently, metal–organic frameworks (MOFs), which are porous inorganic–organic hybrid materials consisting of metal ions (clusters or secondary building units) and organic ligands through coordination bonds, have attracted wide attention because of their high surface area, huge ordered porosity, uniform structural cavities, and excellent thermal/chemical stability. In this work, durian shell biomass carbon fiber and Fe3O4functionalized metal–organic framework composite material (durian shell fiber-Fe3O4-MOF, DFM) was synthesized and employed for the adsorption removal of methylene blue (MB) from wastewater. The morphology, structure, and chemical elements of the DFM material were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), transmission electron microscope (TEM), and X-ray photoelectron spectroscope (XPS) techniques. Adsorption conditions such as pH, adsorption time, and temperature were optimized. The adsorption isotherm and kinetics results show that the adsorption process of DFM material to MB is more in line with the Freundlich model and pseudo-second-order kinetic model. Using these models, the maximum adsorption capacity of 53.31 mg/g was obtained by calculation. In addition, DFM material could be easily reused through an external magnet and the removal rate of MB was still 80% after five adsorption cycles. The obtained results show that DFM composite material, as an economical, environmentally friendly, recyclable new adsorbent, can simply and effectively remove MB from wastewater.Keywords:biomass fibers;durian shell;magnetic composite;adsorption
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
Food Chemistry-X
·
2025
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IF 8.2
Di Chen,Hailong Dong,Lvyun Zhuang,Xiaopeng Wu,Bing Wu,Weijie Lan,Miaomiao Su,Guanhua Tao,Bingqiang Xu,Chunhua Xu,Wenjiang Dong,Zhi Xu,Daizhu Lyu,Lehe Tan
Consumers are particularly fond of jackfruit for its strong tropical aroma and distinctive flavor. However, significant differences in aroma and taste exist among various jackfruit varieties. This study investigated the aroma characteristics and metabolic profiles of two representative jackfruit cultivars, QY1H and XM1H. Results revealed distinct aroma profiles between the two varieties. Lipidomics analysis indicated remarkable differences in unsaturated fatty acid metabolism, with linoleic acid metabolism emerging as a key factor contributing to aroma variation. Differences in amino acid metabolism, particularly in leucine levels, were closely associated with aroma divergence in various jackfruit types. Additionally, carotenoid metabolism varied significantly between the two cultivars, with β-cyclocitral identified as a major aroma component in the XM1H variety. These findings provide new insights into the formation mechanisms of jackfruit aroma and offer valuable data for enhancing flavor quality and guiding future breeding programs.
研究领域:
植物学
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食品科学
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代谢组学
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植物生物化学
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农业遗传学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）