Abstract: A system for the resilience of an electric submersible pumping system to a transient power interruption includes a power backup connected to the variable speed drive of the pumping system. A method for controlling the electric submersible pump during the transient power interruption includes connecting a variable speed drive to a power source, charging one or more rechargeable batteries within the power backup, and connecting the power backup to the variable speed drive. The method continues with the steps of operating the motor with the variable speed drive, detecting a disruption in AC power from the power source to the variable speed drive, and applying power from the power backup to the variable speed drive to operate the motor during the transient interruption in electrical power.

Abstract: A system for the resilience of an electric submersible pumping system to a transient power interruption includes a power backup connected to the variable speed drive of the pumping system. A method for controlling the electric submersible pump during the transient power interruption includes connecting a variable speed drive to a power source, charging one or more rechargeable batteries within the power backup, and connecting the power backup to the variable speed drive. The method continues with the steps of operating the motor with the variable speed drive, detecting a disruption in AC power from the power source to the variable speed drive, and applying power from the power backup to the variable speed drive to operate the motor during the transient interruption in electrical power.

Abstract: A method of synthesizing TiO2/Co3O4 core-shell photocatalysts is provided. The method includes preparing SiO2 hollow nanospheres via sol-gel synthesis in the presence of a triblock copolymer surfactant and a cationic surfactant; adding titanium sec-butoxide to a solution containing the SiO2 hollow nanospheres to provide a first combined sample; calcinating the first combined sample to provide hollow mesoporous TiO2 nanospheres; adding cobalt nitrate to a solution comprising the hollow mesoporous TiO2 nanospheres to provide a second combined sample; and calcinating the second combined sample to provide TiO2/Co3O4 core-shell photocatalysts. Methods of producing hydrogen by water-splitting using TiO2/Co3O4 core-shell photocatalysts are also provided. Such methods include photodepositing platinum onto the photocatalysts during the reaction.

Abstract: A method for the preparation of zirconia-multi-walled carbon nanotube nanocomposite utilizing Pluronics as templating agents is described. An efficient method for producing hydrogen gas using the nanocomposite as a photocatalyst.

Abstract: A method for the preparation of zirconia-multi-walled carbon nanotube nanocomposite utilizing Pluronics as templating agents is described. An efficient method for producing hydrogen gas using the nanocomposite as a photocatalyst.

Abstract: A composite containing carbon nitride and a mixed metal sulfide. The composite is useful as a photocatalyst. A method of making the composite and a method of photocatalyzing the degradation of pollutants are described herein.

Abstract: A method for the preparation of zirconia-multi-walled carbon nanotube nanocomposite utilizing Pluronics as templating agents is described. An efficient method for producing hydrogen gas using the nanocomposite as a photocatalyst.

Abstract: A composite hollow particle comprising titanium dioxide and a metal ion in the shell which covers a hollow core. A method of making the composite hollow particle and a method of employing the composite hollow particle in production of hydrogen gas under visible light are provided.

Abstract: A photocatalytic nanocomposite hollow sphere comprising a shell surrounding a hollow core, and the shell comprising zirconium dioxide, hydroxyapatite, and platinum, as well as a method for producing the nanocomposite hollow sphere and a method employing the nanocomposite hollow sphere in reducing an aromatic nitro compound to an aromatic amine compound under visible light are disclosed.

Abstract: A photocatalytic nanocomposite hollow sphere comprising a shell surrounding a hollow core, and the shell comprising zirconium dioxide, hydroxyapatite, and platinum, as well as a method for producing the nanocomposite hollow sphere and a method employing the nanocomposite hollow sphere in reducing an aromatic nitro compound to an aromatic amine compound under visible light are disclosed.

Abstract: A composite containing carbon nitride and a mixed metal sulfide. The composite is useful as a photocatalyst. A method of making the composite and a method of photocatalyzing the degradation of pollutants are described herein.

Abstract: A composite hollow particle comprising titanium dioxide and a metal ion in the shell which covers a hollow core. A method of making the composite hollow particle and a method of employing the composite hollow particle in production of hydrogen gas under visible light are provided.