PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2025
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IF 7.8
Meng-Yue Li,Fan Wang,An-Tong Liu,Qing-Cheng Tang,Xue Dong,Jia-Jie Long
An efficient and ecofriendly purification of simulated contaminants from cotton substrate was investigated by employing carbon capsules which were defined as a system formed in-situ with SCF-CO 2 and surfactants to wrap and transfer working solution. The results show that the simulated contaminants on cotton fabric samples could be efficiently and uniformly removed with a standard deviation lower than 0.03. An optimized process was recommended with 1.2 g the mixture of Span80 and Tween60 (3:1), 25 mL ethanol, 0.024 g synthetic detergent, 30 mL water, 14 MPa and 50℃ with 60 min cleaning duration, by achieving a high purification efficiency in weight loss at 19.14% and capillary rise height at 9.0 cm. Moreover, it was found that an efficient purification of the simulated contaminants from the surfaces of cotton was directly observed in SEM investigation by achieving much smoother and clearer fiber surfaces. Contact angle, XRD, TG-DTG and FT-IR analysis further prove that the carbon capsule purification could impart the substrate a good wettability with contact angle at 0.0° within 1 s, higher thermal stability, and improved aggregation structure with no evident variations in chemical structures. Obviously, this study holds significant importance in advancing green and sustainable developments in textile or other cleaning industries.
研究领域:
纺织科学
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环境科学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
PROGRESS IN ORGANIC COATINGS
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2024
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IF 6.5
Zewen Lu,Jingbo Mu,Chaowen Guan,Shufeng Zhao,Tianshuo Sui,Shimin Liao,Zengcai Guo
There has been extensive research on conductive hydrogels, however, the current lack of practical applications is a significant issue. The crucial challenge lies in effectively integrating conductive hydrogels into practical use. Here, a uniform multifunctional hydrogel was facilely fabricated by integrating nitrogen-doped carbon capsules (N-Cc) and g-C 3 N 4 to PEO/PVA hydrogels (VECGNC). The introduction of a double network structure through carbon material endows the VECGNC hydrogel with exceptional mechanical strength (stress: 47.2 kPa; strain: 318 %) and high electrical conductivity (0.025 S cm −1 ). And it showed a good linear relationship between the temperature and pressure difference. Taking advantage of these properties, a logic gate circuit capable of sensing external pressure changes and effecting corresponding adjustments was constructed. Moreover, the strain sensitivity hydrogel designed in this work is capable of intelligent new traffic lights. Our work offers novel insights and methodologies for the utilization of multifunctional hydrogels in multi-scenario temperature and strains ensing applications.
研究领域:
材料科学
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生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
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2016
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IF 3.993
Aibing Chen,Kechan Xia,Linsong Zhang,Yifeng Yu,Yuetong Li,Hexu Sun,Yuying Wang,Yunqian Li,Shuhui Li
A novel “dissolution–capture” method for the fabrication of nitrogen-doped hollow mesoporous spherical carbon capsules (N-HMSCCs) with high capability for supercapacitor is developed. The fabrication process is performed by depositing mesoporous silica on the surface of the polyacrylonitrile nanospheres, followed by a dissolution–capture process occurring in the polyacrylonitrile core and silica shell. The polyacrylonitrile core is dissolved by dimethylformamide treatment to form a hollow cavity. Then, the polyacrylonitrile is captured into the mesochannel of silica. After carbonization and etching of silica, N-HMSCCs with uniform mesopore size are produced. The N-HMSCCs show a high specific capacitance of 206.0 F g–1 at a current density of 1 A g–1 in 6.0 M KOH due to its unique hollow nanostructure, high surface area, and nitrogen content. In addition, 92.3% of the capacitance of N-HMSCCs still remains after 3000 cycles at 5 A g–1. The “dissolution–capture” method should give a useful enlightenment for the design of electrode materials for supercapacitor.
研究领域:
材料科学
·
能源存储技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Storage
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2023
·
IF 9.4
Zengcai Guo,Yuanxiang Zhao,Jianpeng Mu,Zhixiao Zhang,Jingbo Mu,Hongwei Che,Yanming Wang,Xiaoliang Zhang,Guangshuo Wang,Mingyi Zhang
NiPS 3 electrodes usually suffer from aggregation large volume changes, low electrical conductivity , and huge volume changes in bulk phase. These significantly decrease the electron transport efficiency, resulting in the sluggish reaction kinetics of supercapacitors during cycling. Herein, we designed and produced hollow porous nitrogen-doped carbon capsules (N-Cc), which are used as a conductive matrix and dispersed growing substrate for NiPS 3 . Finally, NiPS 3 nanosheets were successfully grown in situ on N-Cc by chemical vapor deposition method. The specific capacitance of the highly integrated N-Cc@NiPS 3 -1.0 electrode structure is notable, at 590 C g −1 . The assembled N-Cc@NiPS 3 -1.0//AC asymmetric supercapacitor (ASC) delivers an energy density of 55.42 Wh kg −1 at power density of 750.05 W kg −1 and an outstanding stability with 89.9 % of retention rate for 8000 cycles. It should be noted that the performance of the N-Cc@NiPS 3 -1.0 here surpasses most of previously reported similar materials.
研究领域:
材料科学
·
能源存储与转换
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
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2018
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IF 8.097
Qiuwen Wu,Gen Wei,Zhuobin Xu,Jing Han,Juqun Xi,Lei Fan,Lizeng Gao
Infections caused by bacteria are a growing global challenge for public health as bacteria develop resistance, which will cause the failure of anti-infective treatment eventually. An effective alternative strategy to traditional antibacterial therapy is utilizing reactive oxygen species (ROS) to kill bacteria. Here, we report a simple route to prepare PEGylated nitrogen-doped carbon capsules (PEG-N-CCs) as an antibacterial agent. The PEG-N-CCs can translate near-infrared light (NIR) into heat and produce a high concentration of ROS triggered by NIR irradiation. Both heating and ROS are critical to destroy the outer membranes and rupture cell bodies, causing DNA fragmentation and glutathione oxidation both in Gram-negative Escherichia coli, Gram-positive Staphylococcus aureus, and their multidrug-resistant strains. Moreover, PEG-N-CCs plus NIR irradiation can efficiently scavenge the existing biofilms and prevent the formation of new biofilms, killing planktonic bacteria as well as those within the biofilm. Our studies prove that the PEG-N-CCs plus NIR irradiation can provide a simple and effective platform for combating bacteria, employing carbon nanomaterials as an antibacterial alternative for treatment of infectious diseases.
研究领域:
材料科学
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微生物学
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纳米技术
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生物医学工程
✓ 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）