Copper oxide nanoflowers(CuO-NFs)have been synthesized through a novel green route using Tulsi leaves-extracted eugenol(4-allyl-2-methoxyphenol)as reducing agent.Characterizations results reveal the growth of crystall...Copper oxide nanoflowers(CuO-NFs)have been synthesized through a novel green route using Tulsi leaves-extracted eugenol(4-allyl-2-methoxyphenol)as reducing agent.Characterizations results reveal the growth of crystalline singlephase CuO-NFs with monoclinic structure.The prepared CuO-NFs can effectively degrade methylene blue with 90%efficiency.They also show strong barrier against E.coli(27±2 mm)at the concentration of 100μg mL−1,while at the concentration of 25μg mL−1 weak barrier has been found against all examined bacterial organisms.The results provide important evidence that CuO-NFs have sustainable performance in methylene blue degradation as well as bacterial organisms.展开更多
Energy and environmental stuff are two of the main worries for humanity,and nanoscience plays a key role in providing the solution.Huge nanoresearch activities have attracted lot of attention in the current scenario.H...Energy and environmental stuff are two of the main worries for humanity,and nanoscience plays a key role in providing the solution.Huge nanoresearch activities have attracted lot of attention in the current scenario.However,designing the material with enhanced optoelectronic properties remains the foremost challenge.In the present work,the Li doped CuO nanosheets are synthesized by the chemical route and examined in photovoltaics and environmental remediation applications.The crystallographic and optical study reveals that crystallite size and bandgap decrease with an increase in lithium-doping concentration up to 5 mole%and beyond that a reverse trend is observed.Additionally,impedance study has shown the significant contribution of lithium-ions to the total capacitance and resistivity.Further,the photoactivity of Cu_(1-x)Li_(x)O nanosheets(optimum concentration of Cu_(1-x)Li_(x)O NSs(x=0.05))is projected to the degradation of methylene blue(MB)and used to fabricate bulk heterojunction solar cell together with P3HT and PCBM blend,respectively.The ITO/PEDOT:PSS/P3 HT:PC_(70)BM:Cu_(1-x)Li_(x)O(x=0.05)/Li F/Al solar cell realized higher power-conversion efficiencyη~3.91 than their corresponding pristine deviceη~2.98 with enhanced photocurrent density from 9.026 to 11.56 m A cm^(-2).The proliferation in photocatalysts and solar cells efficiency of Cu_(1-x)Li_(x)O(x=0.05)is mainly attributed to the higher light absorption and lesser electron-hole recombination.The approach for the synthesis of Cu_(1-x)Li_(x)O NSs as potential donor material and device prototypes fabricated is completely safe and cost-effective.展开更多
文摘Copper oxide nanoflowers(CuO-NFs)have been synthesized through a novel green route using Tulsi leaves-extracted eugenol(4-allyl-2-methoxyphenol)as reducing agent.Characterizations results reveal the growth of crystalline singlephase CuO-NFs with monoclinic structure.The prepared CuO-NFs can effectively degrade methylene blue with 90%efficiency.They also show strong barrier against E.coli(27±2 mm)at the concentration of 100μg mL−1,while at the concentration of 25μg mL−1 weak barrier has been found against all examined bacterial organisms.The results provide important evidence that CuO-NFs have sustainable performance in methylene blue degradation as well as bacterial organisms.
基金Syed Maqbool Husain,Sha-Shib Group of Institutions for their support
文摘Energy and environmental stuff are two of the main worries for humanity,and nanoscience plays a key role in providing the solution.Huge nanoresearch activities have attracted lot of attention in the current scenario.However,designing the material with enhanced optoelectronic properties remains the foremost challenge.In the present work,the Li doped CuO nanosheets are synthesized by the chemical route and examined in photovoltaics and environmental remediation applications.The crystallographic and optical study reveals that crystallite size and bandgap decrease with an increase in lithium-doping concentration up to 5 mole%and beyond that a reverse trend is observed.Additionally,impedance study has shown the significant contribution of lithium-ions to the total capacitance and resistivity.Further,the photoactivity of Cu_(1-x)Li_(x)O nanosheets(optimum concentration of Cu_(1-x)Li_(x)O NSs(x=0.05))is projected to the degradation of methylene blue(MB)and used to fabricate bulk heterojunction solar cell together with P3HT and PCBM blend,respectively.The ITO/PEDOT:PSS/P3 HT:PC_(70)BM:Cu_(1-x)Li_(x)O(x=0.05)/Li F/Al solar cell realized higher power-conversion efficiencyη~3.91 than their corresponding pristine deviceη~2.98 with enhanced photocurrent density from 9.026 to 11.56 m A cm^(-2).The proliferation in photocatalysts and solar cells efficiency of Cu_(1-x)Li_(x)O(x=0.05)is mainly attributed to the higher light absorption and lesser electron-hole recombination.The approach for the synthesis of Cu_(1-x)Li_(x)O NSs as potential donor material and device prototypes fabricated is completely safe and cost-effective.
