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바부바출라,V.V.N. Harish,Ravindranadh Koutavarapu,심재술,유기수 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.76 No.-
We report a novel fabrication method for CdS nanorods (NRs) @ SnO2 quantum dots (SQDs) core–shell NR(CdS@SnO2 core–shell NR) heterojunction photocatalysts using a simple two-step process involvinghydrothermal and ultrasonication techniques. The surface of the fabricated CdS NRs was completelydecorated with colloidal SQDs. The amount of colloidal SQDs on the surface of the CdS NRs was optimizedto achieve the maximum degradation efficiency. The superior performance of these NRs in dyedegradation was attributed to the synergetic effect of the colloidal SQDs, which protected the surface ofthe CdS NRs.
Babu, Bathula,Harish, V.V.N.,Koutavarapu, Ravindranadh,Shim, Jaesool,Yoo, Kisoo Elsevier 2019 Journal of industrial and engineering chemistry Vol.76 No.-
<P><B>Abstract</B></P> <P>We report a novel fabrication method for CdS nanorods (NRs) @ SnO<SUB>2</SUB> quantum dots (SQDs) core–shell NR (CdS@SnO<SUB>2</SUB> core–shell NR) heterojunction photocatalysts using a simple two-step process involving hydrothermal and ultrasonication techniques. The surface of the fabricated CdS NRs was completely decorated with colloidal SQDs. The amount of colloidal SQDs on the surface of the CdS NRs was optimized to achieve the maximum degradation efficiency. The superior performance of these NRs in dye degradation was attributed to the synergetic effect of the colloidal SQDs, which protected the surface of the CdS NRs.</P> <P><B>Highlights</B></P> <P> <UL> <LI> 1D core–shell nanorods were fabricated via a sonochemical approach. </LI> <LI> CdS nanorods were coated with colloidal SQDs, and the SQD quantity was optimized. </LI> <LI> CdS@SnO<SUB>2</SUB> core–shell NRs exhibited highly efficient and stable catalytic activity. </LI> <LI> Degradation efficiency of C–S 1.0 was ∼6.8 times higher than that of bare CdS NRs. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Reddy, Chandragiri Venkata,Reddy, I. Neelakanta,Akkinepally, Bhargav,Harish, V.V.N.,Reddy, Kakarla Raghava,Jaesool, Shim Elsevier 2019 CERAMICS INTERNATIONAL Vol.45 No.12
<P><B>Abstract</B></P> <P>A template-free technique was used to prepare pure and Mn-doped ZrO<SUB>2</SUB> photocatalyst samples in this study. The effect of doping on the structural, optical, photocatalytic, and supercapacitor properties were investigated. X-ray diffraction analysis revealed that the prepared samples had a tetragonal crystal structure. The optical band gap was narrowed due to the incorporation of Mn ions. The photocatalytic activity of methyl orange organic dye degradation with the Mn-doped ZrO<SUB>2</SUB> sample was examined under visible-light irradiation. The doped sample showed 83% of dye degradation after 100 min of irradiation. Cyclic voltammetry was used to study the supercapacitor properties, and the doped samples exhibited capacitance seven times greater than that of the pure sample.</P>