Rational design of electrospun nanofibers for gas purification: Principles, opportunities, and challenges

Sun, Yangjie; Zhang, Xin; Zhang, Man; Ge, Mingzheng; Wang, Jiancheng; Tang, Yuxin; Zhang, Yanyan; Mi, Jie; Cai, Weilong; Lai, Yuekun; Feng, Yu

doi:10.1016/j.cej.2022.137099

Cited by 43 publications

(13 citation statements)

References 174 publications

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“…To increase the surface area as the secondary significant factor, plastic waste can be physically recycled to fibers/aerogels (applicable for PET, PS, PC) or already fibrous materials (PP masks or hospital bed sheets 50 ) with high exterior surface areas, minimal pressure dips, and flexibility can be utilised. 644 Alternatively, plastic-based composites with high-surface-area materials, e.g. , MOFs 645 or mesoporous silica bear potential for CO 2 -related applications.…”

Section: Major Application Fields: Comparison Of Value-added Performa...mentioning

confidence: 99%

“Functional upcycling” of polymer waste towards the design of new materials

et al. 2023

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Section: Major Application Fields: Comparison Of Value-added Performa...mentioning

confidence: 99%

“Functional upcycling” of polymer waste towards the design of new materials

et al. 2023

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“…With industry development, human pollution of the environment is getting worse [ 1 ], and this pollution has triggered a series of environmental problems, such as global warming, freshwater resource crisis, land desertification, etc. [ 2 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of 2D Materials and Their Application in Oil–Water Separation

et al. 2023

Biomimetics

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The problems of environmental pollution are increasingly severe. Among them, industrial wastewater is one of the primary sources of pollution, so it is essential to deal with wastewater, especially oil and water mixtures. At present, biomimetic materials with special wettability have been proven to be effective in oil-water separation. Compared with three-dimensional (3D) materials, two-dimensional (2D) materials show unique advantages in the preparation of special wettable materials due to their high specific surface area, high porosity, controlled structure, and rich functional group rich on the surface. In this review, we first introduce oil–water mixtures and the common oil–water separation mechanism. Then, the research progress of 2D materials in oil–water separation is presented, including but not limited to their structure, types, preparation principles, and methods. In addition, it is still impossible to prepare 2D materials with large sizes because they are powder-like, which greatly limits the application in oil–water separation. Therefore, we provide here a review of several ways to transform 2D materials into 3D materials. In the end, the challenges encountered by 2D materials in separating oil–water are also clarified to promote future applications.

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“…To date, multiple sorbents composed of metal oxides for high-temperature desulfurization have been developed . By thermodynamic modeling, researchers have examined 28 metal oxides and identified 11 possible oxides with thermodynamic feasibility as desulfurization materials, including Fe, Zn, Mo, Mn, V, Ca, Sr, Ba, Co, Cu, and W. − Among them, the ZnO-based sorbents have attracted great interest due to the high uptake of sulfur compounds (H 2 S and COS). , The removal of H 2 S by ZnO-based sorbents can be realized through the following equation Specifically, ZnO is considered one of the best metal oxide sorbents, as it shows the most favorable desulfurization thermodynamics . Although ZnO has a high H 2 S sorption capacity, the reduction of zinc oxide in the highly reducing atmosphere followed by vaporization of elemental zinc can be a severe problem when the temperature is higher than 600 °C.…”

Section: Introductionmentioning

confidence: 99%

Bimetallic-MOF-Derived Zn_xCo_3–xO₄/Carbon Nanofiber Composited Sorbents for High-Temperature Coal Gas Desulfurization

Zhang

et al. 2022

Environ. Sci. Technol.

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Desulfurization sorbent with a high active component utilization is of importance for the removal of H 2 S from coal gas at high temperatures. Thus, the hypothesis for producing Zn x Co 3−x O 4 /carbon nanofiber sorbents via the combinations of electrospinning, in situ hydrothermal growth, and carbonization technique has been rationally constructed in this study. Zn x Co 3−x O 4 nanoparticles derived from metal−organic frameworks are uniformly loaded on the electrospun carbon nanofibers (CNFs) with high dispersion. Zn x Co 3−x O 4 /CNFs sorbents possess the highest breakthrough sulfur adsorption capacity (12.4 g S/100 g sorbent) and an excellent utilization rate of the active component (83.2%). The excellent performance of Zn x Co 3−x O 4 /CNFs can be attributed to the synergetic effect of the hierarchical structure and widely distributed Zn x Co 3−x O 4 on the CNFs supporter. The decomposition of Zn/Co−ZIFs not only generates the nucleus of oxides but also realizes their physical isolation through the formation of carbon grids on the surface of CNFs, avoiding the aggregation of oxides. Furthermore, Zn x Co 3−x O 4 /CNFs sorbents show an overwhelming superiority over the ZnO/CNFs sorbent, which is attributed to the introduction of Co and then the promotion of the stability of Zn at high temperatures. The presence of Co also accelerates the adsorption of H 2 S on the active site of the oxide surface. The presented method is beneficial for promoting desulfurization performances and producing sorbents with high utilization of active components.

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Rational design of electrospun nanofibers for gas purification: Principles, opportunities, and challenges

Cited by 43 publications

References 174 publications

“Functional upcycling” of polymer waste towards the design of new materials

“Functional upcycling” of polymer waste towards the design of new materials

Preparation of 2D Materials and Their Application in Oil–Water Separation

Bimetallic-MOF-Derived Zn_xCo_3–xO₄/Carbon Nanofiber Composited Sorbents for High-Temperature Coal Gas Desulfurization

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Rational design of electrospun nanofibers for gas purification: Principles, opportunities, and challenges

Cited by 43 publications

References 174 publications

“Functional upcycling” of polymer waste towards the design of new materials

“Functional upcycling” of polymer waste towards the design of new materials

Preparation of 2D Materials and Their Application in Oil–Water Separation

Bimetallic-MOF-Derived ZnxCo3–xO4/Carbon Nanofiber Composited Sorbents for High-Temperature Coal Gas Desulfurization

Contact Info

Product

Resources

About

Bimetallic-MOF-Derived Zn_xCo_3–xO₄/Carbon Nanofiber Composited Sorbents for High-Temperature Coal Gas Desulfurization