With the increasing concerns to energy shortage and environmental problems in modern society,the development of cheap,clean,and sustainable energy alternatives has been attracting tremendous attention globally.Among v...With the increasing concerns to energy shortage and environmental problems in modern society,the development of cheap,clean,and sustainable energy alternatives has been attracting tremendous attention globally.Among various strategies of renewable energy exploration,solar-driven water splitting into its compositional elements H2 and O2 is an ideal approach to convert and store renewable solar energy into chemical bonds.In recent few decades,as an emerging new type of catalysts,polyoxometalates(POMs)have been widely utilized for water splitting due to their versatile synthetic methodology and highly tunable physicochemical and photochemical properties.This critical review addresses the research advances of light-driven hydrogen evolution using polyoxometalate-based catalysts,including plenary POMs,transition-metal-substituted POMs,POM@MOF composites,and POM-semiconductor hybrids,under UV,near UV and visible light irradiation.In addition,the catalytic mechanism for each reaction system has been thoroughly discussed and summarized.Finally,a comprehensive outlook of this research area is also prospected.展开更多
As a widely used traditional Chinese medicine （TCM）, Swertia punicea Hemsl has exhibited effects on anti-hepatitis B virus （HBV）, liver protection, hypoglycemic activity and cholecystitis. In this study, we confir...As a widely used traditional Chinese medicine （TCM）, Swertia punicea Hemsl has exhibited effects on anti-hepatitis B virus （HBV）, liver protection, hypoglycemic activity and cholecystitis. In this study, we confirmed that xanthone extract from Swertia punicea Hemsl （XSPH） improved the motor deficit, increased the levels of striatal dopamine （DA） and homovanilic acid （HVA）, and alleviated the loss of tyrosine hydroxylase （TH）-positive neurons located in substantia nigra pars compacta （SNpc） in MPTP-induced mouse model of Parkinson＇s disease （PD）. In conclusion, the present results indicated that XSPH offered neuroprotective effects against the neurotoxicity of MPTP and it might be a potential treatment for PD.展开更多
文摘With the increasing concerns to energy shortage and environmental problems in modern society,the development of cheap,clean,and sustainable energy alternatives has been attracting tremendous attention globally.Among various strategies of renewable energy exploration,solar-driven water splitting into its compositional elements H2 and O2 is an ideal approach to convert and store renewable solar energy into chemical bonds.In recent few decades,as an emerging new type of catalysts,polyoxometalates(POMs)have been widely utilized for water splitting due to their versatile synthetic methodology and highly tunable physicochemical and photochemical properties.This critical review addresses the research advances of light-driven hydrogen evolution using polyoxometalate-based catalysts,including plenary POMs,transition-metal-substituted POMs,POM@MOF composites,and POM-semiconductor hybrids,under UV,near UV and visible light irradiation.In addition,the catalytic mechanism for each reaction system has been thoroughly discussed and summarized.Finally,a comprehensive outlook of this research area is also prospected.
基金National key foundation for exploring scientific ins trument of China(Grant No.2013YQ030651)National Natural Sci ence Foundation of China(Grant No.81202937)
文摘As a widely used traditional Chinese medicine （TCM）, Swertia punicea Hemsl has exhibited effects on anti-hepatitis B virus （HBV）, liver protection, hypoglycemic activity and cholecystitis. In this study, we confirmed that xanthone extract from Swertia punicea Hemsl （XSPH） improved the motor deficit, increased the levels of striatal dopamine （DA） and homovanilic acid （HVA）, and alleviated the loss of tyrosine hydroxylase （TH）-positive neurons located in substantia nigra pars compacta （SNpc） in MPTP-induced mouse model of Parkinson＇s disease （PD）. In conclusion, the present results indicated that XSPH offered neuroprotective effects against the neurotoxicity of MPTP and it might be a potential treatment for PD.
