In this paper, the double-layer harmonic diffractive element (HDE) structure is investigated and the optimization procedure is given based on the equation of diffraction efficiency of the double-layer diffractive optical element. A new infrared double-layer inverted telephoto with HDE is designe...

To improve the sensitivity of a non-dispersive infrared optical gas sensor, diffractive Fresnel lenses have been designed, fabricated with silicon microtechnologies, and tested. The target gases (for fruit storage applications) determine the wavelengths for the lens design: 10.6 μm, 9.7 μm, 3....

A dispersive Fourier transform far-infrared spectrometer is used to measure the optical constants (absorption and refractive index) of a number of aliphatic ketones, in the wave number range 20–500 cm−1. Several previously unreported absorption features of aliphatic ketones at far-infrared freq...

In this study, we reported a novel type-I heterojunction between red phosphorus and graphitic carbon nitride under vacuum condition, which is a novel synthesis process. For preparing the red phosphorus composites, the vacuum condition is appropriate to prevent it from self-ignition. The prepared...

In this work, the combination of dispersive micro solid-phase extraction (DµSPE) with laser-induced breakdown spectroscopy (LIBS) was evaluated for simultaneous preconcentration and detection of Zn, Cd, Mn, Ni, Cr and Pb in aqueous samples. Two adsorbent materials were tested in the microextrac...

This study evaluated the effect on refrigeration performance and feasibility of a far-infrared coating (FIRC) on the condenser of a small isobutane (R-600a) refrigerator. The evaluation was based on the no-load pull-down and 24-h on-load cycling tests. Far-infrared materials and a water-based co...

Ordered mesoporous molybdate-zirconium oxophosphate (M-ZrPMo) solid acid catalysts with controllable molybdenum contents (0–20%) are designed and synthesized through a one-pot evaporation-induced self-assembly strategy. Afterwards, ordered mesostructure and molybdenum species in the materials a...

The present work aims to evaluate Brown 3 REL degrading potential of developed microbial consortium GG-BL using two microbial cultures, Galactomyces geotrichum MTCC 1360 (GG) and Brevibacillus laterosporus MTCC 2298 (BL). Microbial consortium GG-BL showed 100% decolorization of a dye Brown 3 REL...

Phenolic acids are widely distributed in the plant kingdom and possess a broad spectrum of pharmacological activity. However, low oral bioavailability restricts their application. In this study, a high dispersed phyto- phospholipid complex with mesoporous silica containing TPGS 1000 (TPC-SD) was...

Photocatalytic materials with overall water splitting utilizing infrared light are of particular interest for clean energy applications and environmental pollution. So far, few two-dimensional (2D) material has been identified to be in this class of materials without any additional tuning. Here,...

Densitometric high performance thin layer chromatography (HPTLC) quantification method was developed to validate the decolorization/biotransformation of Disperse Orange ERL and dye mixture by lichen Parmelia sp. which release several colored compounds during decolorization process, hence unable ...

The textile industry is the largest consumer of azo dyes and activated sludge treatment systems typically used to remove them are frequently inefficient, resulting in significant quantities of these compounds adsorbed in the sludge or released into water bodies. The aim of this study was to eval...

HypothesisSurface functionalization is an effective method to tune the wettability and dispersibility of graphene oxide (GO) nanosheets, but functionalization methods often require long reaction times and expensive reagents. To meet this GO processing need, we propose a quick, industrially scala...

In order to apply the excellent properties of carbon nanotubes to the field of biomedicine, water-based high concentration carbon nanotubes(CNTs) slurry with high dispersibility and stability was prepared by adjusting illumination conditions and pH values. The infrared spectroscopy, zeta potenti...

In this paper, we have investigated dielectric properties of azo dye methyl red (MR) doped polymer dispersed liquid crystal (PDLC) composites. Norland optical adhesive (NOA 65) and nematic liquid crystal (E63) materials were used to construction of PDLC composite. In order to observe the effect ...

New experimental values of the fundamental infrared gas phase intensities of the fluorochloromethanes have been determined by integrating the areas of vibrational bands contained in the PNNL spectral library using homemade software. The root mean square differences of these values and averages o...

The physico-chemical behavior of disperse dye is the crucial point and basis for utilization CO2 in supercritical state as an environmentally friendly waterless dyeing medium, which has triggered widespread concern. In the present work, the physico-chemical behavior of Disperse Red 167 was inves...

Bacterial cellulose is an attractive material due to its outstanding biocompatibility, nanometer size and high purity, but the difficulty of dispersing has restricted its wide applications. In this study, chitosan was grafted onto bacterial cellulose by Schiff base reaction, and then obtained th...

Characteristic absorption and photoluminescence (PL) of TiO2 and disperse red-19 (DR-19) composite have been investigated. Two step synthetic processes were employed to incorporate the DR-19 to the TiO2 sol–gel. Firstly, urethane bonds between the DR-19 (OH) and 3-isocyanatopropyl triethoxysila...

A red fluorescent sulfonated waterborne polyurethane-based dye WPU-DR11 was synthesized by conjugating Disperse Red 11 (DR11) into polyurethane backbones. The expected structure of WPU-DR11 was characterized by FT-IR and UV–vis spectra. Containing the well-known dye of anthraquinone chromophore...