In the current social development of our country,environmental protection has become a key content,and water treatment process is a key step to achieve environmental protection.This paper analyzes the application of w...In the current social development of our country,environmental protection has become a key content,and water treatment process is a key step to achieve environmental protection.This paper analyzes the application of whole membrane water treatment technology in environmental protection.It is hoped that this analysis can be helpful for the rational application of the whole membrane water treatment technology and the improvement of environmental protection quality.展开更多
Graphene-based laminar materials open up to new applications for molecular and ionic separations in aqueous environments due to the atomic thickness, mechanical strength, chemical stability and other fantastic propert...Graphene-based laminar materials open up to new applications for molecular and ionic separations in aqueous environments due to the atomic thickness, mechanical strength, chemical stability and other fantastic properties.Recent advances on controlling the structure and chemical functionality of graphene-based membranes can potentially lead to new classes of tools for desalination, dehydration, toxicant rejection, specific ionic separation and so on. The recent developments of graphene-based membranes prepared by using a concept to form interlayer space between graphene sheets and creating nanoscale or sub-nanoscale pores in a graphene lattice, together with their mass-transfer mechanisms and potential applications in aqueous environments are reviewed. A summary and outlook is further provided on the opportunities and challenges in this arising field.This article is expected to address the intricate details of mass transport through two distinct graphene-based membranes in aqueous environment and to optimize the fabrication of graphene-based membranes as a fascinating separation system for a wide range of applications.展开更多
The escalating challenges in water treatment,exacerbated by climate change,have catalyzed the emergence of innovative solutions.Novel adsorption separation and membrane filtration methodologies,achieved through molecu...The escalating challenges in water treatment,exacerbated by climate change,have catalyzed the emergence of innovative solutions.Novel adsorption separation and membrane filtration methodologies,achieved through molecular structure manipulation,are gaining traction in the environmental and energy sectors.Separation technologies,integral to both the chemical industry and everyday life,encompass concentration and purification processes.Macrocycles,recognized as porous materials,have been prevalent in water treatment due to their inherent benefits:stability,adaptability,and facile modification.These structures typically exhibit high selectivity and reversibility for specific ions or molecules,enhancing their efficacy in water purification processes.The progression of purification methods utilizing macrocyclic frameworks holds promise for improved adsorption separations,membrane filtrations,resource utilization,and broader water treatment applications.This review encapsulates the latest breakthroughs in macrocyclic host-guest chemistry,with a focus on adsorptive and membrane separations.The aim is to spotlight strategies for optimizing macrocycle designs and their subsequent implementation in environmental and energy endeavors,including desalination,elemental extraction,seawater energy harnessing,and sustainable extraction.Hopefully,this review can guide the design and functionality of macrocycles,offering a significantly promising pathway for pollutant removal and resource utilization.展开更多
Large volumes of water are generated in gas- and oil-production. This includes the water that is present originally in the reservoirs, but also water that is injected into the wells. While currently much of the produc...Large volumes of water are generated in gas- and oil-production. This includes the water that is present originally in the reservoirs, but also water that is injected into the wells. While currently much of the produced water is either reinjected or disposed of after treatment, treated produced water is increasingly seen as an interesting resource, especially in water-scarce regions. This review looks at different PW treatment methods available, with an emphasis on the management of PW in oil- and gas production on the Arabian Peninsula.展开更多
Membrane technology has become one of the most promising separation technologies for its energy saving, high separation efficiency, environmental friendliness, and economic feasibility. Covalent organic frameworks(COF...Membrane technology has become one of the most promising separation technologies for its energy saving, high separation efficiency, environmental friendliness, and economic feasibility. Covalent organic frameworks(COFs) with intrinsically high porosity, controllable pore size, uniform pore size distribution and long-range ordered channel structure, have emerged as next-generation materials to fabricate advanced separation membranes. This feature article summarizes some latest studies in the development of pure COF membranes in our lab, including their fabrication and applications in chemical separations. Finally, current challenges facing high-performance COF separation membranes are discussed.展开更多
文摘In the current social development of our country,environmental protection has become a key content,and water treatment process is a key step to achieve environmental protection.This paper analyzes the application of whole membrane water treatment technology in environmental protection.It is hoped that this analysis can be helpful for the rational application of the whole membrane water treatment technology and the improvement of environmental protection quality.
基金Supported by the National Natural Science Foundation of China(21490582,21506127)
文摘Graphene-based laminar materials open up to new applications for molecular and ionic separations in aqueous environments due to the atomic thickness, mechanical strength, chemical stability and other fantastic properties.Recent advances on controlling the structure and chemical functionality of graphene-based membranes can potentially lead to new classes of tools for desalination, dehydration, toxicant rejection, specific ionic separation and so on. The recent developments of graphene-based membranes prepared by using a concept to form interlayer space between graphene sheets and creating nanoscale or sub-nanoscale pores in a graphene lattice, together with their mass-transfer mechanisms and potential applications in aqueous environments are reviewed. A summary and outlook is further provided on the opportunities and challenges in this arising field.This article is expected to address the intricate details of mass transport through two distinct graphene-based membranes in aqueous environment and to optimize the fabrication of graphene-based membranes as a fascinating separation system for a wide range of applications.
文摘The escalating challenges in water treatment,exacerbated by climate change,have catalyzed the emergence of innovative solutions.Novel adsorption separation and membrane filtration methodologies,achieved through molecular structure manipulation,are gaining traction in the environmental and energy sectors.Separation technologies,integral to both the chemical industry and everyday life,encompass concentration and purification processes.Macrocycles,recognized as porous materials,have been prevalent in water treatment due to their inherent benefits:stability,adaptability,and facile modification.These structures typically exhibit high selectivity and reversibility for specific ions or molecules,enhancing their efficacy in water purification processes.The progression of purification methods utilizing macrocyclic frameworks holds promise for improved adsorption separations,membrane filtrations,resource utilization,and broader water treatment applications.This review encapsulates the latest breakthroughs in macrocyclic host-guest chemistry,with a focus on adsorptive and membrane separations.The aim is to spotlight strategies for optimizing macrocycle designs and their subsequent implementation in environmental and energy endeavors,including desalination,elemental extraction,seawater energy harnessing,and sustainable extraction.Hopefully,this review can guide the design and functionality of macrocycles,offering a significantly promising pathway for pollutant removal and resource utilization.
文摘Large volumes of water are generated in gas- and oil-production. This includes the water that is present originally in the reservoirs, but also water that is injected into the wells. While currently much of the produced water is either reinjected or disposed of after treatment, treated produced water is increasingly seen as an interesting resource, especially in water-scarce regions. This review looks at different PW treatment methods available, with an emphasis on the management of PW in oil- and gas production on the Arabian Peninsula.
基金financially supported by the National Natural Science Foundation of China (Nos. 22378300 and 21878215)National Key Research and Development Program of China (No.2022YFB3805202)+3 种基金Key Research and Development Program of Zhejiang Province (No. 2021C03173)Ningbo Key Research and Development Project (No. 2022Z121)Program of Introducing Talents of Discipline to Universities (No.BP0618007)Haihe Laboratory of Sustainable Chemical Transformations for financial support。
文摘Membrane technology has become one of the most promising separation technologies for its energy saving, high separation efficiency, environmental friendliness, and economic feasibility. Covalent organic frameworks(COFs) with intrinsically high porosity, controllable pore size, uniform pore size distribution and long-range ordered channel structure, have emerged as next-generation materials to fabricate advanced separation membranes. This feature article summarizes some latest studies in the development of pure COF membranes in our lab, including their fabrication and applications in chemical separations. Finally, current challenges facing high-performance COF separation membranes are discussed.
