Two-dimensional(2D) transition metal oxide and chalcogenide(TMO&C)-based photocatalysts have recently attracted significant attention for addressing the current worldwide challenges of energy shortage and environm...Two-dimensional(2D) transition metal oxide and chalcogenide(TMO&C)-based photocatalysts have recently attracted significant attention for addressing the current worldwide challenges of energy shortage and environmental pollution. The ultrahigh surface area and unconventional physiochemical, electronic and optical properties of 2D TMO&Cs have been demonstrated to facilitate photocatalytic applications. This review provides a concise overview of properties, synthesis methods and applications of 2D TMO&C-based photocatalysts. Particular attention is paid on the emerging strategies to improve the abilities of light harvesting and photoinduced charge separation for enhancing photocatalytic performances,which include elemental doping, surface functionalization as well as heterojunctions with semiconducting and conductive materials. The future opportunities regarding the research pathways of 2D TMO&C-based photocatalysts are also presented.展开更多
Low-melting-temperature(LMT)metals and alloys based on post-transition metals,frequently dubbed as“liquid metals”,are enigmatic materials.Although they have been around for thousands of years,and we have continuousl...Low-melting-temperature(LMT)metals and alloys based on post-transition metals,frequently dubbed as“liquid metals”,are enigmatic materials.Although they have been around for thousands of years,and we have continuously been fascinated by what they are,our knowledge about them is still rudimentary.Perhaps the reason is that most electromagnetic waves or even electron beams can hardly penetrate through liquid metals and we tend to ignore what we cannot directly observe.展开更多
You may have noticed that even just before the onset of a simple cold or a minor fever,disordered gut function may be experienced.In addition to coryzal symptoms and fever,abdominal discomfort or altered bowel functio...You may have noticed that even just before the onset of a simple cold or a minor fever,disordered gut function may be experienced.In addition to coryzal symptoms and fever,abdominal discomfort or altered bowel function are not uncommon as accompanying symptoms,such as bloating,abdominal pain,nausea,vomiting,constipation or diarrhea.It is not surprising,as the gut walls are porous,allowing the absorption of nutrients from food intake.The gut mucosa very rapidly exchanges certain chemicals in body fluid compartments with gut liquid and gaseous contents.It is likely that imbalance of the body chemical contents,as a result of a health disorder,rapidly shows itself as changes in gut contents.展开更多
基金the fund received from the Australian Research Council (DE160100715)
文摘Two-dimensional(2D) transition metal oxide and chalcogenide(TMO&C)-based photocatalysts have recently attracted significant attention for addressing the current worldwide challenges of energy shortage and environmental pollution. The ultrahigh surface area and unconventional physiochemical, electronic and optical properties of 2D TMO&Cs have been demonstrated to facilitate photocatalytic applications. This review provides a concise overview of properties, synthesis methods and applications of 2D TMO&C-based photocatalysts. Particular attention is paid on the emerging strategies to improve the abilities of light harvesting and photoinduced charge separation for enhancing photocatalytic performances,which include elemental doping, surface functionalization as well as heterojunctions with semiconducting and conductive materials. The future opportunities regarding the research pathways of 2D TMO&C-based photocatalysts are also presented.
基金supported by the Australian Research Council(ARC)Laureate Fellowship grant(FL180100053)the ARC Centres of Excellence FLEET(CE170100039)M.A.R.acknowledges the ARC Discovery Early Career Researcher Award(DECRA)grant(DE210101162).
文摘Low-melting-temperature(LMT)metals and alloys based on post-transition metals,frequently dubbed as“liquid metals”,are enigmatic materials.Although they have been around for thousands of years,and we have continuously been fascinated by what they are,our knowledge about them is still rudimentary.Perhaps the reason is that most electromagnetic waves or even electron beams can hardly penetrate through liquid metals and we tend to ignore what we cannot directly observe.
文摘You may have noticed that even just before the onset of a simple cold or a minor fever,disordered gut function may be experienced.In addition to coryzal symptoms and fever,abdominal discomfort or altered bowel function are not uncommon as accompanying symptoms,such as bloating,abdominal pain,nausea,vomiting,constipation or diarrhea.It is not surprising,as the gut walls are porous,allowing the absorption of nutrients from food intake.The gut mucosa very rapidly exchanges certain chemicals in body fluid compartments with gut liquid and gaseous contents.It is likely that imbalance of the body chemical contents,as a result of a health disorder,rapidly shows itself as changes in gut contents.
