Photocatalytic Degradation Mechanism of the Pharmaceutical Agent Salbutamol Using the Mn-Doped TiO Nanoparticles Under Visible Light Irradiation.

In the present work, the photocatalytic degradation of salbutamol [2-(-butylamino)-1-(4-hydroxyl-3-hydroxymethylphenyl)ethanol] under visible irradiation using Mn-doped TiO is investigated. The Mn-doped TiO nanoparticles were synthesized by the sol-gel method with ratios of 0.1, 0.

Enhanced Photocatalytic and Photokilling Activities of Cu-Doped TiO Nanoparticles.

In this work, metal-doped titanium dioxide (TiO) was synthesised with the aim of improving photocatalytic degradation and antimicrobial activities; TiO was doped with copper (Cu) ranging from 0.1 to 1.0 wt%.

Coconut Fiber Decorated with Bismuth Vanadate for Enhanced Photocatalytic Activity.

Bismuth vanadate/coconut fiber (BiVO/CF) composites were synthesized by coprecipitation and calcination methods. All catalysts used in this work were prepared by a simple coprecipitation method and fully characterized by means of XRD, SEM-EDS, PL, BET N adsorption, zeta potential, and UV-vis DRS. Degradation of indigo carmine (IC) under visible light irradiation was tracked by the UV-vis technique.

Synthesis and Characterization of WO/CeO Heterostructured Nanoparticles for Photodegradation of Indigo Carmine Dye.

WO/CeO heterostructured nanocomposites containing different WO ratios (0.1, 0.3, 0.

Novel Strategy for the Development of Antibacterial TiO Thin Film onto Polymer Substrate at Room Temperature.

This work demonstrates a novel method to deposit an antibacterial TiO thin film on a polymer substrate at room temperature. A combination of sol-gel and photon assistance was used in the experiment in order to avoid any thermal processes of thin film crystallization. The morphological photograph of samples indicated that the TiO thin film was perfectly coated on the PVC substrate without any cracks or pinholes.

New insight into the photocatalytic degradation of organic pollutant over BiVO/SiO/GO nanocomposite.

The nanocomposite of BiVO-based material has been synthesized by one-step solvent method. The morphological, physical, chemical properties of the nanocomposite have been investigated. The results revealed that the surface area of BiVO, BiVO/SiO and BiVO/SiO/GO was 11.

Adsorption and Photocatalytic Processes of Mesoporous SiO-Coated Monoclinic BiVO.

The silicon dioxide (SiO)-coated bismuth vanadate (BiVO) composites as visible-driven-photocatalysts were successfully synthesized by the co-precipitation method. The effects of SiO coating on the structure, optical property, morphology and surface properties of the composites were investigated by X-ray diffraction (XRD), UV-visible diffuse reflectance spectroscopy (DRS), transmission electron microscopy (TEM) and Brunauer-Emmette-Teller (BET) measurements. The photocatalytic activity of monoclinic BiVO and BiVO/SiO composites were evaluated according to the degradation of methylene blue (MB) dye aqueous solution under visible light irradiation.

Photocatalytic Degradation of Organic Dye under UV-A Irradiation Using TiO2-Vetiver Multifunctional Nano Particles.

The properties and photocatalytic performance of anatase nanoparticles of pure TiO₂ and a core-shell structure of TiO₂ on calcined vetiver grass leaves have been compared. Samples were fabricated by sol-gel and heating at 450 °C for 5h.The comparison was based on data for X-ray diffraction(XRD), UV-Vis spectrophotometry, photoluminescence, transmission electron microscopy, specific surface area measurement, pore volume assessment, and methylene blue degradation testing.

Utilization of Waste Materials for Microbial Carrier in Wastewater Treatment.

This research focused on the ammonium-nitrogen (NH4-N) removal from the domestic wastewater using the attached growth reactors. Two types of waste material of corncob (biodegradable material) and concrete (nonbiodegradable material) were used as the carrier for microorganisms' attachment. During operation, both reactors achieved absolutely high performance of ammonium removal (up to 99%) and total nitrogen removal (up to 95%).

Comparison of Simultaneous Nitrification and Denitrification for Three Different Reactors.

Discharge of high NH4-N containing wastewater into water bodies has become a critical and serious issue due to its negative impact on water and environmental quality. In this research, the performance of three different reactors was assessed and compared with regard to the removal of NH4-N from wastewater. The highest nitrogen removal efficiency of 98.

Investigation of the effects of hydrogenotrophic denitrification and anammox on the improvement of the quality of the drinking water supply system.

A drinking water supply system operates at Chyasal (in the Kathmandu Valley, Nepal) for purifying the groundwater that has high levels of ammonium nitrogen (NH4-N). However, high NO3-N concentrations were seen in the water after treatment. To further improve the quality of the drinking water, two types of attached growth reactors were developed for the purification system: (i) a hydrogenotrophic denitrification (HD reactor) and (ii) a concurrent reactor with anammox and hydrogenotrophic denitrification (AnHD reactor).

Development of an attached growth reactor for NH₄-N removal at a drinking water supply system in Kathmandu Valley, Nepal.

Higher concentrations of ammonium (NH(4)-N) and iron (Fe) than a standard for drinking are typical characteristics of groundwater in the study area. To remove NH(4)-N and Fe, the drinking water supply system in this study consists of a series of treatment units (i.e.

Performance of intermittent aeration reactor on NH4-N removal from groundwater resources.

To study the effect of intermittent aeration period on ammonium-nitrogen (NH4-N) removal from groundwater resources, synthetic groundwater was prepared and three reactors were operated under different conditions--"reactor A" under continuous aeration, "reactor B" under 6 h intermittent aeration, and "reactor C" under 2 h intermittent aeration. To facilitate denitrification simultaneously with nitrification, "acetate" was added as an external carbon source with step-wise increase from 0.5 to 1.