This research reported Cu2+ un-doped (pure) and doped ZnO semiconductors with variations in concentrations of 3%, 4% 5% through the sol gel method which aims to determine morphology optical properties has been investigated. In addition, film was coated using doctor blade addition chlorophyll as a dye sensitizer. Morphological elemental content tests were carried out SEM EDS. The analyzed by tak...

In this work, H3PW12O40 (PPT) and nano-sized titania supported on urea formaldehyde (UF) resinwas prepared via an impregnation method. The prepared sample was characterized by X-raydiffraction (XRD), UV-Vis spectrophotometer, Fourier transform infrared spectroscopy (FT-IR),scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The photocatalyt...

Carbon nanotube-In2O3 nanocomposites were synthesized by sol-gel method with the help of ultrasonic radiation. The samples were characterized by X-ray diffractometer, transmission electron microscopy and energy dispersive spectrometer. The UV absorbing properties were detected by the UV spectrophotometer. Photo degradation of methylene blue in aqueous solution was investigated by using CNT/In2O...

Sun protection fabrics are designed to absorb or reflect the sun’s UV radiation as a means of protecting the skin from damage. The rating system for fabrics specifies an Ultraviolet Protection Factor (UPF) value, which can be thought of as a time factor for the protection of Caucasian skin compared to exposure without any protection. For example, if a person would show visible erythema (sunburn...

The determination of hydroxymethylfurfural (HMF) in bee honey is performed by the spectrophotometric methods Winkler's and White's. Winkler method reads absorbances visible region spectrum, White measures ultraviolet (UV) regions spectrum. This study aims to compare methodologies HMF honey. For study, it was used a UV-visible spectrophotometer, 10 mm optical path quartz cuvettes, ten samples di...

Abstract Chemical processes were used to synthesize ZnO low-dimensional structure including thin film nanorod and nanoparticle. was prepared by sol-gel spin coating method while hydrothermal process nanoparticle synthesized via co-precipitation route. The structural, morphological, optical photoresponse properties investigated XRD, FESEM, UV-Visible spectrophotometer, I-V I-t measurement. Compa...

background: 2, 4-dichlorophenoxy acetic acid (2, 4-d) is well known as inexpensive herbicides but it can give rise to undesirable pollution. the objective of this investigation was to describe a photo-chemical system for degradation of 2, 4-d. methods: a designed photolytic cell system was used in this study with a 150w or 400w uv lamp. a set of experiments was carried out at ph 1.5, 2.5, 3.5 a...

In this study, many samples have been synthesized by using solution casting technique with different additive content of Chromium oxide nanoparticle (Cr2O3NPs), poly vinylalcohol (PVA) and polyethylene glycol (PEG). The UV-Vis. spectrophotometer used to record the absorbance spectrum in range (200-800) nm. absorption UV waves is improved while transmittance reduced when Cr2O3 NPs were added pol...