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Hydrophobic nanocellulose aerogels with high loading of metal-organic framework particles as floating and reusable

Jiajia Li, Shengcheng Zhai, Weibing Wu, Zhaoyang Xu

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 5,   Pages 1158-1168 doi: 10.1007/s11705-020-2021-z

Abstract: In this paper, we employed a facile approach to prepare flexible and porous metal-organic frameworks (MOFs) containing cellulose nanofiber (CNF) aerogels (MNCAs) through freeze-drying MOF-containing cellulose nanofiber suspensions. After coating with methyltrimethoxysilane (MTMS) by chemical vapor deposition, recycled and hydrophobic MTMS-coated MNCAs (MMNCAs) were obtained. Due to the low density (0.009 g/cm ), high porosity (97%) and good mechanical properties of the aerogel, the adsorption capacity of MMNCAs reached up to 210 g/g, which was nearly 3‒5 times that of pure CNF aerogels. These prepared aerogels showed excellent oil/water selectivity and high capacity to adsorb oil and organic solvents. This kind of cellulose-based aerogel may be applicable in the field of environmental protection.

Keywords： cellulose nanofibers     aerogels     metal-organic framework     oil-adsorption    

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Watt Linkage–Based Legged Deployable Landing Mechanism for Reusable Launch Vehicle: Principle, Prototype Article

Haitao Yu,Baolin Tian,Zhen Yan,Haibo Gao,Hongjian Zhang,Huiqiang Wu,Yingchao Wang,Yuhong Shi,Zongquan Deng

Engineering 2023, Volume 20, Issue 1,   Pages 120-133 doi: 10.1016/j.eng.2022.05.015

Abstract:

The reusable launch vehicle (RLV) presents a new avenue for reducing cost of space transportation.

Keywords： Reusable launch vehicle (RLV)     Deployable mechanism     Optimization design    

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Fabrication of a High-Performance and Reusable Planar Face Mask in Response to the COVID-19 Pandemic Article

Shui Hu, Hongchi Tian, Shijia Zhang, Dan Wang, Guozhuo Gong, Weihua Yue, Keyang Liu, Song Hong, Rui Wang, Qingqing Yuan, Yonglai Lu, Dong Wang, Liqun Zhang, Jianfeng Chen

Engineering 2022, Volume 9, Issue 2,   Pages 101-110 doi: 10.1016/j.eng.2021.07.022

Abstract: Both the PFE and the microbial indicators are well above the standard for reusable masks after disinfection

Keywords： Mask     Reusable     Particle filtration efficiency     Disinfection     Schlieren photography    

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The Present Situation and Prospect of China's Space-entering Capacity

Long Lehao,Wang Xiaojun,Guo Linli

Strategic Study of CAE 2006, Volume 8, Issue 11,   Pages 25-28

Abstract:

The paper describes the present situation and development trend of the launching system in space activities abroad, and analyzes the situation of China´s “Long-March” rockets and the gap between China and foreign countries in that regard. The paper also proposes 5 development directions for enhancing China ´s spaceentering capacity： renovating active launching vehicle; developing the next generation of rocket series; developing small-sized rockets that can be launched quickly and flexibly; developing launching vehicles capable of manned lunar landing and outer space exploration; exploring the techniques for reusing launching vehicles.

Keywords： space activities     “Long-March” rocket family     manned lunar landing     reusable launching vehicles    

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Can Masks Be Reused After Hot Water Decontamination During the COVID-19 Pandemic? Article

Dan Wang, Bao-Chang Sun, Jie-Xin Wang, Yun-Yun Zhou, Zhuo-Wei Chen, Yan Fang, Wei-Hua Yue, Si-Min Liu, Ke-Yang Liu, Xiao-Fei Zeng, Guang-Wen Chu, Jian-Feng Chen

Engineering 2020, Volume 6, Issue 10,   Pages 1115-1121 doi: 10.1016/j.eng.2020.05.016

Abstract: established, which may provide scientific guidance and technical methods for the future development of reusable

Keywords： Masks     Reusable     COVID-19     Decontamination     Green development concept    

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Title Author Date Type Operation

Hydrophobic nanocellulose aerogels with high loading of metal-organic framework particles as floating and reusable

Jiajia Li, Shengcheng Zhai, Weibing Wu, Zhaoyang Xu

Journal Article

Watt Linkage–Based Legged Deployable Landing Mechanism for Reusable Launch Vehicle: Principle, Prototype

Haitao Yu,Baolin Tian,Zhen Yan,Haibo Gao,Hongjian Zhang,Huiqiang Wu,Yingchao Wang,Yuhong Shi,Zongquan Deng

Journal Article

Fabrication of a High-Performance and Reusable Planar Face Mask in Response to the COVID-19 Pandemic

Shui Hu, Hongchi Tian, Shijia Zhang, Dan Wang, Guozhuo Gong, Weihua Yue, Keyang Liu, Song Hong, Rui Wang, Qingqing Yuan, Yonglai Lu, Dong Wang, Liqun Zhang, Jianfeng Chen

Journal Article

The Present Situation and Prospect of China's Space-entering Capacity

Long Lehao,Wang Xiaojun,Guo Linli

Journal Article

Can Masks Be Reused After Hot Water Decontamination During the COVID-19 Pandemic?

Dan Wang, Bao-Chang Sun, Jie-Xin Wang, Yun-Yun Zhou, Zhuo-Wei Chen, Yan Fang, Wei-Hua Yue, Si-Min Liu, Ke-Yang Liu, Xiao-Fei Zeng, Guang-Wen Chu, Jian-Feng Chen

Journal Article