Development of inorganic-organic CdSe(en)via microwave-assisted method and topotactic transformation into porous CdSe nanosheet photoanode for photoelectrochemical hydrogen production.

In this study, inorganic-organic hybrid CdSe(en) nanosheet (NS) was developed on Cd foil via the microwave-assisted (MW) method with different MW irradiation cycles. Furthermore, the photoelectrochemical (PEC) performance of the mother material was improved through a second hydrothermal method with different time variations (3, 6, and 12 h at 160 °C). After the second hydrothermal, organic moieties were removed, and a porous photoanode was obtained.

Surface-tuning TiO NR photoanodes using CoO interlayers and NiFe-LDH cocatalysts for photoelectrochemical wastewater treatment.

Increasing multidrug-resistant pathogenic microbial around the world become a global problem, making it imperative to develop effective methods for bacterial inactivation in wastewater. In this study, we propose a multifunctional photoelectrochemical (PEC) system to successfully disinfect microbial cells and degrade orange (II) dyes. CoO NP were synthesized by spin-coating onto hydrothermally synthesized TiO nanorod arrays followed by electrodeposited NiFe-LDH to develop the NiFe-LDH/CoO NP-TiO NRs.

In-situ Hf/Zr co-doped FeO nanorod decorated with CuO/CoO: Enhanced photocatalytic performance for antibacterial and organic pollutants.

Herein, we successfully synthesized Hf/Zr co-doping on FeO nanorod photocatalyst by a hydrothermal process and quenching methods. The synergistic roles of Hf and Zr double-doping on the bacteria inactivation test and decomposition of organic pollutants were investigated in detail for the 1 wt% CoO loaded Hf/Zr-FeO NRs and CuO/CoO loaded Hf/Zr-FeO NRs photocatalyst. Initially, the rod-like porous morphology of the Hf/Zr-doped FeO NRs was produced via a hydrothermal method at various Hf co-doping (0, 2, 4, 7 and 10)%.

In situ fabrication of Ag decorated porous ZnO photocatalyst via inorganic-organic hybrid transformation for degradation of organic pollutant and bacterial inactivation.

In this study, in situ silver (Ag) - porous ZnO photocatalysts were synthesized via solvothermal and post-annealing treatment. The formation of the porous ZnO structure due to the removal of organic moieties from the inorganic-organic hybrids Ag-ZnS(en) during the annealing process. The optimal Ag-ZnO photocatalyst showed excellent photocatalytic degradation activity, with 95.

TiO nanorod/nanotube interface reconstruction and synergistic role of oxygen vacancies and gold in H-Au-TiO NR/NT for photoelectrochemical bacterial inactivation and water splitting.

Photoelectrochemical (PEC) water splitting by semiconductor photoanodes is limited by sluggish water oxidation kinetics coupled with serious charge recombinations. In this paper, an effective strategy of TiO nanorod/nanotube nanostructured interface reconstruction, oxygen vacancies and surface modification were employed for stability and efficient charge transport in the photoanodes. Successive anodization and hydrothermal routes were adopted for the TiO NR/NT photoanodes interface reconstruction, followed by Au nanoparticles/clusters (Au NP) loading and hydrogen treatment.

Porous ZnCdSe/ZnO Nanorod Photoanode Fabricated from ZnO Building Blocks Grown on Zn Foil for Photoelectrochemical Solar Hydrogen Production.

Solar energy is the most promising, efficient, environmentally friendly energy source with the potential to meet global demand due to its non-polluting nature. Herein, a porous ZnCdSe/ZnO nanorod (NR) heterojunction was synthesized by hydrothermal and low-temperature solvothermal methods. First, the ZnO NR was grown on a Zinc foil, and an inorganic-organic hybrid ZnSe(en) material was developed by the low-temperature solvothermal method.

Understanding systematic growth mechanism of porous ZnCdSe/TiO nanorod heterojunction from ZnSe(en)/TiO photoanodes for bias-free solar hydrogen evolution.

Herein, a porous ZnCdSe structure was developed on TiO nanorod (NR) array for photoelectrochemical (PEC) application. Firstly, TiO NR and ZnO/TiO NR photoanode were synthesized via a series of hydrothermal methods on FTO. Next, the solvothermal synthesis method was adopted to develop inorganic-organic hybrid ZnSe(en) on ZnO /TiO NR-based electrode using different concentrations of the selenium (Se).

Inactivation of mammalian spermatozoa on the exposure of TiO nanorods deposited with noble metals.

Titanium dioxide (TiO) nanorods (NRs) are well-known semiconducting and catalytic material that has been widely applied, but their toxicities have also attracted recent interest. In this study, we investigated and compared the toxic effects of TiO NRs and TiO NRs loaded with Ag or Au NPs on boar spermatozoa. As a result, sperm incubated with Ag-TiO NRs showed lower motility than sperm incubated with controls (with or without TiO NRs) or Au-TiO NRs.

Synergistic role of in-situ Zr-doping and cobalt oxide cocatalysts on photocatalytic bacterial inactivation and organic pollutants removal over template-free FeO nanorods.

Herein, we synthesized in-situ Zr-doped FeO NRs photocatalyst by successive simple hydrothermal and air quenching methods. The synergistic roles of CoO (1 wt%) and Zr-doping on bacteria inactivation and model organic pollutants over FeO NRs photocatalyst were studied in detail. Initially, rod-like Zr ((0-8) %)-doped FeO NRs were produced via a hydrothermal method.

Topotactic and Self-Templated Fabrication of ZnCdSe Porous Nanobelt-ZnO Nanorod for Photoelectrochemical Hydrogen Production.

Herein, we propose the topotactic and self-templated fabrication of ZnCdSe porous nanobelt-ZnO nanorod (termed as ZnCdSe/ZnO) photoelectrode via the cadmium (Cd) ion-exchange process on zinc (Zn) foil. Inorganic-organic hybrid ZnSe(en) nanobelt (NB) was synthesized on Zn foil by a facial solvothermal method at different temperatures of 140, 160, and 180 °C for 12 h. The interfacial properties and photoelectrochemical (PEC) performance of inorganic-organic ZnSe(en) NB fabricated through the Cd ion-exchange method at different time durations of 6, 12, 18, and 24 h at 140 °C were investigated.

Self-supported CdSe nanowire/nanosheet photoanodes on cadmium foil via in situ hydrothermal transformation of CdSe(en) complex nanostructures.

To solve energy crisis, the engineering of highly efficient and cost-effective photoanodes is urgently required for clean fuel generation. Herein, CdSe(en) (en = ethylenediamine) hybrid photoanodes were synthesized by a solvothermal approach. It was revealed that a second in situ hydrothermal treatment successfully converts cadmium foil-based inorganic-organic CdSe(en) (en = ethylenediamine) hybrid nanosheets to an oriented cadmium hydroxide crowned CdSe nanowire-decorated porous nanosheet (Cd(OH)/CdSe NW/NS) heterostructure by dissolution and regrowth mechanisms.

Lowering the onset potential of Zr-doped hematite nanocoral photoanodes by Al co-doping and surface modification with electrodeposited Co-Pi.

Herein, in situ zirconium-doped hematite nanocoral (Zr-FeO (I) NC) photoanode was prepared via a specially designed diluted hydrothermal approach and modified with Al co-doping and electrodeposited cobalt-phosphate ("Co-Pi") cocatalyst. Firstly, an unintentional in situ Zr-FeO (I)) NC photoanode was synthesized, which achieved an optimum photocurrent density of 0.27 mA/cm at 1.

Simultaneous and synergistic effect of heavy metal adsorption on the enhanced photocatalytic performance of a visible-light-driven RS-TONR/TNT composite.

A hydrothermally synthesized rhodium/antimony co-doped TiO nanorod and titanate nanotube (RS-TONR/TNT) composite was prepared for removal of heavy metals and organic pollutants from water under visible light irradiation. The composite provides the dual function of simultaneous adsorption of heavy metal ions and enhanced degradation of dissolved organic compounds. Acid treatment transformed titanate nanotubes to irregular tubular structures distributed homogeneously over untransformed RS/TONRs.

A mechanism study on the photocatalytic inactivation of Salmonella typhimurium bacteria by CuO loaded rhodium-antimony co-doped TiO nanorods.

This study presents the first report on the photocatalytic inactivation mechanism for a Salmonella typhimurium pathogen by visible-light active CuxO loaded rhodium-antimony co-doped TiO2 nanorods (CuxO/Rh-Sb-TiO2 NRs) under visible light irradiation (cutoff filter, λ ≥ 420 nm). Remarkably higher pathogenic inactivation of 4 log within 40 min by a CuxO supported Rh-Sb-TiO2 NR photocatalyst was observed. The visible light active photocatalyst mainly produced reduced Cu+ in the lattice of CuxO by charge separation.

Highly self-diffused Sn doping in α-FeO nanorod photoanodes initiated from β-FeOOH nanorod/FTO by hydrogen treatment for solar water oxidation.

In this study, we present an advanced strategy of low-temperature hydrogen annealing combined with high- temperature quenching in air for activating α-FeO nanorod photoanodes to boost the photoelectrochemical performance. We report that various low-temperature annealing conditions (340, 360, 380, and 400 °C) under hydrogen gas flow convert β-FeOOH into magnetite (FeO) as well as introduce Sn diffusion from FTO substrates to its surface. Furthermore, high-temperature quenching (800 °C) resulted in the phase change of magnetite (FeO) into hematite (α-FeO) and self Sn doping into the hematite lattice.

Data on the effect of improved TiO/FTO interface and Ni(OH) cocatalyst on the photoelectrochemical performances and stability of CdS cased ZnInS/TiO heterojunction.

This data article presents the experimental evidences of the effect of TiO-fluorine doped tin oxide interface annealing and Ni(OH) cocatalysts on the photoelectrochemical, structural, morphological and optical properties of Ni(OH)/CdS/ZnInS/TiO heterojunction. The Raman spectroscopy exhibits the sharp features of the rutile phase of TiO and in agreement with the X-ray diffraction data. The band gap energy of the 500 °C sample was found to be 3.

Insights into the enhanced photoelectrochemical performance of hydrothermally controlled hematite nanostructures for proficient solar water oxidation.

In this paper, we focus on the controlled growth mechanism of α-FeO nanostructures via the hydrothermal method. The field emission scanning electron microscopy (FESEM) results reveal that at a lower hydrothermal time, the initial nucleation involves the formation of short and thin β-FeOOH nanorods. The subsequent increase in the hydrothermal time leads β-FeOOH to form thicker and longer nanorods.

Boosting Photocatalytic Performance of Inactive Rutile TiO Nanorods under Solar Light Irradiation: Synergistic Effect of Acid Treatment and Metal Oxide Co-catalysts.

In the present work, we accomplish the boosting of photocatalytic performance by the synergistic effect of acid treatment and transition metal oxide co-catalysts on molten salt rutile TiO nanorods. FT-IR and XPS (oxygen deconvolution) results confirmed that the amount of hydroxyl groups increased on the surface of rutile TiO nanorods (TO-NRs) after acid treatment. HR-TEM analysis revealed fine dispersion of metal oxide on the surface of acid treated TiO nanorods (ATO-NRs).

Enhanced photoelectrochemical performance of internally porous Au-embedded α-FeO photoanodes for water oxidation.

We report internally porous Au-embedded hematite on FTO using CTAB. Incorporation of Au and CTAB synergistically improved the photocurrent of hematite by 63% at 1.23 V in 1 M NaOH under standard illumination conditions.

CdS/Zr:Fe O Nanorod Arrays with Al O Passivation Layer for Photoelectrochemical Solar Hydrogen Generation.

CdS-sensitized 1 D Zr:Fe O nanorod arrays were synthesized on fluorine-doped tin oxide substrates by a two-step hydrothermal method. The photoelectrochemical results demonstrate that the current density (4.2 mA cm at 0 V vs.

A hydrothermally grown CdS nanograin-sensitized 1D Zr:α-FeO/FTO photoanode for efficient solar-light-driven photoelectrochemical performance.

Well-defined CdS nanograin-sensitized one-dimensional (1D) Zr:α-FeO nanostructured arrays with enhanced photoelectrochemical performance are synthesized directly on F-doped SnO (FTO) using the hydrothermal method. Owing predominantly to the appropriate photogenerated electron-hole separation and charge collection in 1D Zr:α-FeO nanorods, hydrothermally deposited CdS/1D Zr:α-FeO samples exhibit improved photocurrent density over CdS/FeO nanosheets prepared by other methods. In our work, compared with 1D Zr:α-FeO, the CdS-sensitized 1D Zr:α-FeO nanorod arrays show 1.

A Synergistic Effect of Surfactant and ZrO2 Underlayer on Photocurrent Enhancement and Cathodic Shift of Nanoporous Fe2O3 Photoanode.

Augmenting the donor density and nanostructure engineering are the crucial points to improve solar water oxidation performance of hematite (α-Fe2O3). This work addresses the sluggish water oxidation reaction associated with hematite photoanode by tweaking its internal porosity. The porous hematite photoanodes are fabricated by a novel synthetic strategy via pulse reverse electrodeposition (PRED) method that involves incorporation of a cationic CTAB surfactant in a sulfate electrolyte and spin-coated ZrO2 underlayer (UL) on FTO.