Formation Of Crystal Structure Research Articles

Upcycling of steel slag for manufacture of Prussian-blue-encapsulated pectin beads and its use for efficient removal of aqueous cesium

Development of innovative technology for solid waste disposal, particularly the synthesis of novel energy and environmental materials via upcycling of solid wastes, is essential for boosting sustainable development in urban areas. In this study, we developed a novel synthesis method for Prussian-blue-encapsulated pectin beads (PB@PD) using Fe and Ca sources in steel slag (SS) and demonstrated its feasibility for the removal of Cs+ via batch and fixed-bed column reactors. Hydrochloric acid (HCl) was used for Fe and Ca dissolution in the SS suspension, and the extracted Fe and Ca were then used for the synthesis of Prussian blue and pectin polymer beads, respectively. The surface characteristics of PB@PD were determined through advanced microscopy and surface analyses, which confirmed the successful formation of a PB crystal structure and well-distributed PB particles in the cross-linked pectin structure. Batch isotherm adsorption experiments conducted using PB@PD revealed that the maximum adsorption capacity of Cs+ was 54.34 mg/g. PB@PD could be recycled up to four times and was very effective for Cs+ adsorption in artificial seawater. Furthermore, we successfully applied PB@PD as a filling material in a fixed-bed column reactor and obtained an effective adsorption capacity (41.75–43.9 mg/g) without any clogging problem during the continuous Cs+ treatment.

Preparation and properties of Al/Al2O3 core-shell microencapsulated phase change material

With the industrial development, the energy crisis has become a dreadfully serious problem in the world. Therefore, the development of high-durable phase change materials (PCMs) over 600 ℃ is very important for the high-temperature heat energy storage system. An improved three-step process of micro-encapsulated PCMs (MEPCMs) was proposed in this work, including boehmite-precipitation-thermal oxidation treatment, which are beneficial to disperse the thermal stress during high-temperature cycling and restrain crack propagation due to forming a dense and durable Al2O3 shell. The cross-section structure, the surface morphology, phase compositions, phase change temperature, thermal durability and cycling stability were simultaneously investigated. In addition, boehmite-precipitation treatment was performed in an aqueous solution with different adding amounts of Al(OH)3. The thickness of the Al2O3 shell layer was adjusted by control of the amount of Al(OH)3. The latent heat of the MEPCMs with the adding amount of 2 g/L Al(OH)3 reached 180 J/g, and the released heat was 110 J/g after 100 cycles of melting-solidification. Furthermore, TEM observation further confirmed the formation of θ-Al2O3 crystal structure on the surface, which is helpful to the durability. Every MEPCM kept a completely spherical shape and a dense surface after 100 cycles of melting-solidification. Therefore, the MEPCMs with excellent heat storage capacity and high thermal stability were widely used to recycle industry, such as waste heat, building energy conservation and aerospace. In addition, the new processing technology can provide excellent and industrial production of PCMs in the future.

Influence of Granulometric Composition and Type of Fillers and Additives on the Strength and Biostability of Cement Composites Based on Dry Building Mixtures

The structure of filled cementitious composite materials is formed as a result of hardening with the formation of a crystalline framework. The filler is involved in the building material crystal system structure formation. Chemically active fillers promote intensive release of hydration products that bind into insoluble compounds and increase the system stability. When developing the formulations for dry building mixtures, it is effective to use several fillers with different properties that complement each other, and biocidal additives increasing the materials resistance to environment effects formed by mold fungi. To create modified dry building mixtures based on cement binder, materials such as filler made of quartz sand of various fractions, fillers chrysotile and clinoptilolite and biocidal additives of the Teflex series were used. The composition with sand grains of 0.16–0.315 mm in size showed high strength properties in bending and compression. The introduction of chrysotile in an amount of 3% by weight of cement and quartz sand with a particle size of 0.16–0.315 mm increases the compressive and flexural strength by 7 and 13%, respectively, compared with the control composition. Clinoptilolite, introduced in an amount of 20% of the cement mass instead of one of the quartz sand fractions, increases the compressive strength of the composites up to 5%. The introduction of the Teflex series additives in the amount of at least 1% by weight of the binder ensures the composites’ fungal resistance. The additive “Teflex disinfectant” in an amount of at least 3% of the cement mass gives the composites fungicidal properties, the zone of no fungal growth on the nutrient solution near the infected samples is 4 mm.

Synthesis of La-doped Mn0·6Zn0.4LaxFe2-xO4 and the study of its structural, electrical and magnetic properties for high frequency applications

Lanthanum doped Mn–Zn Ferrite nanoparticles, Mn0·6Zn0.4LaxFe2-xO4 (x = 0.00–0.10 in steps of 0.02), employing oxides of raw materials has been prepared by the conventional solid state reaction (SSR) route. The structural characteristics of resulting ferrite products are investigated by powder X-ray diffraction (XRD) confirming the formation of spinal cubic crystal structure of Mn–Zn Ferrite with privileged orientation along (311). The crystallite size, lattice constant, dislocation density, strain and other microstructural parameters have been traced as a function of the La content (x). FTIR results demonstrate the existence of functional groups associated with Mn–Zn ferrite observing the corresponding peaks at 423 cm−1 and 529 cm−1. The Eg values are lying between 1.23 eV and 1.30 eV studied by exploiting UV–Vis absorption. The ferromagnetic behavior of Mn–Zn ferrite products has been found with the help of PPMS. The saturation magnetization (MS) of bare sample is much larger than that of doped ferrites and decreases with the increasing amount of La content. The coercivity (HC) increases with La introduction and the remnant magnetization reduces from 0.8447 emu/gm to 0.1436 for lower La content (x = 0.02), while it increases at higher La content (x = 0.04–0.10). Dielectric properties and AC resistivity have been extracted from the measurement of impedance analyzer at ambient temperature. The values of dielectric constant are found to be higher in bare Mn–Zn ferrite than La doped Mn–Zn ferrite products.

Synthesis of 2D-CZTS nanoplate as photocathode material for efficient PEC water splitting

Fabrication of economically feasible photocathode for hydrogen energy production through solar water splitting is a major research among the scientific community for a decade. P-type compound Cu2ZnSnS4 (CZTS) is very interesting material due to its absorption property, earth-abundant constituents and environmental friendliness that serves as a suitable candidate to act as a photocathode. In the present work, Cu2ZnSnS4 (CZTS) nanoparticles are synthesized by simple one-step chemical method and annealed at 350 °C for three different times (60 min, 90 min, and 120 min). The effect of annealing time on the structural, optical and photoelectrochemical properties are investigated. XRD pattern indicates the formation of tetragonal crystal structure and the crystallinity increases according to the annealing time. 2D nanoplate morphology is obtained for the sample that was annealed for 120 min. From the absorption spectra, it was found that the bandgap decreases with increase of annealing time. Further, the prepared nanoparticle thin films are used as a cathode for photoelectrochemical water splitting application. Among these, the nanoparticles that are annealed for 120 min showed higher photocurrent density when compared to nanoparticles annealed for 60 min and 90 min.

Development of novel TPI/HDPE/CNTs ternary hybrid shape memory nanocomposites

In order to make up for the defects of trans-1,4-polyisoprene (TPI) shape memory polymer, TPI/high density polyethylene (HDPE) hybrid shape memory matrix was prepared from the perspective of matrix composition. The carbon nanotubes (CNTs) with excellent mechanical properties were introduced into the hybrid shape memory matrix. Due to the difference of the inherent properties and geometry of nano-fillers, the change of the content of nano-fillers directly affects the bonding state within the composites. Therefore, it is very important to choose the appropriate content. In order to give full play to the potential of thermodynamics of nano-filler, the TPI/HDPE/CNTs ternary hybrid shape memory nanocomposites were prepared by mechanical melt blending technology combined with dynamic vulcanization and hot-pressing forming technology. The addition of CNTs promotes the formation of the crystal structure of TPI and HDPE, and facilitates the energy transfer between different interface, which greatly improves the thermal conductivity and mechanical properties of the nanocomposites at the same time. The effect of the changes of filler content on the thermodynamic properties of the composite materials were revealed by series of tests. The results show that the CNTs act as nucleating agents in the crystallization region of TPI and HDPE. However, the excessive addition of CNTs can inhibit the formation of HDPE crystal structure. Meanwhile, the crystallinity of nanocomposites is also an important factor affecting its thermal conductivity. The specimens with the CNTs content of 0.5 wt% have excellent tensile resistance and cyclic recovery ability, and it can improve the shape recovery properties. Therefore, the nanocomposite with the CNTs content of 0.5 wt% has the best thermodynamic and shape memory properties.

Chemical Composition, Crystal Morphology, and Key Gene Expression of the Cuticular Waxes of Goji (Lycium barbarum L.) Berries.

The cuticular wax of fruit is closely related to quality, storability, and pathogen susceptibility after harvest. However, little is known about the cuticular wax of goji berry (Lycium barbarum L.) cultivars. In the present study, the chemical composition, crystal structures, and expression levels of associated genes of the cuticular wax of six goji cultivars were investigated. We detected 70 epicuticular wax compounds in six goji cultivars. Among them, fatty acids, alkanes, and primary alcohols were the major components of the cuticular wax of goji berries, which were related to the formation of irregular lamellar crystal structures. The terpenoid compounds in the cuticular wax of goji berries were highly resistant to Alternaria rot. Moreover, the CER1, CER6, LACS1, MAH1, LTP4, ABC11, MYB96, and WIN1 genes in goji berries might be closely related to wax synthesis. These results provide valuable information for breeding and screening goji cultivars suitable for postharvest storage.

Catalytically transformed low energy intensive 2D-layered and single crystal-graphitic renewable carbon cathode conductors

This is the first study of the catalytic graphitization of Black Spruce (Picea mariana) which has successfully discovered the formation of single crystal graphitic carbon structures with a very high conductivity over 850 S/m implemented in the cathode of a coin cell battery. Renewable carbon with this conductivity is suitable for use in bio-electronics, organic thin film transistors, fuel cells, organic batteries, supercapacitors and sensing device applications. The P. mariana was doped with iron nitrate nanoparticle precursor, and sequentially thermo-catalyzed in presence of helium at temperatures between 300 and 800 °C. Transmission electron micrographs reveal formation of graphitic structures with an interplanar distance of ∼0.33 nm resembling single crystal graphite structure. Raman spectroscopy and X-ray diffraction studies confirm the presence of nano-layered carbon, and the high conductivity was observed in Fe-free residual graphite. Thus, using iron nitrate as a catalyst promotes the formation of single crystal graphitic structures at a significantly reduced thermal energy than traditional pyrolysis treatment and opens a new frontier for sustainable bio-electronics and energy materials manufacturing.

Influence of the calcination temperature on the formation of precipitated ZnO:Ce nanocrystal by employing ultrasound irradiation

Cerium doped Zinc Oxide (ZnO:Ce) nanocrystals were synthesized through precipitation of nitrate solution by employing ultrasound irradiation. The precipitate products were calcinated at various temperature. The calcination temperature is an important key on the formation and properties of nanocrystal. This paper studied influence of calcination temperature on the formation and optical properties of ZnO:Ce nanocrystal. ZnO:Ce nanocrystals were characterized by x-ray diffractometer and UV-Vis spectrophotometer. The x-ray diffraction patterns revealed the formation of hexagonal wurtzite crystal structure for ZnO:Ce nanocrystals. The increase in calcination temperature improved crystallinity and reduced the band gap energy of ZnO:Ce. The result showed that the calcination temperature strongly influenced ZnO:Ce nanocrystals formation. The optical properties of ZnO:Ce nanocrystal can be modified by varying calcination temperature.

Investigation of Morphological, Optical, and Antibacterial Properties of Hybrid ZnO-MWCNT Prepared by Sol-gel

In this research, raw multiwalled carbon nanotubes (R-MWCNT) was successfully functionalized using sulfuric acid and nitric acid. Then a hybrid (ZnO-MWCNT) synthesized by the sol-gel method where diethylene glycol was used as a solvent and stabilizer that works to prevent the accumulation of nanoparticles and reduces the viscosity of the solution. A group of diagnostic techniques, including XRD, UV-Vis, EDX and microscopy has recognized the structural and optical properties of the prepared nanoparticles. High Resolution Electronic Scanner (FE-SEM) was also used in the investigation. FE-SEM images showed the formation of the hybrid (ZnO-MWCNT) by the growth of spherical clusters on the surface of the cross-linked tubes (MWCNT). In addition, FE-SEM images confirmed the success of a ZnO-MWCNT hybrid. The emergence of spherical shapes deposited on cylindrical tubes and associated with a wrinkled surface was recognized. In addition, the particle size ratio increased. The UV-Vis spectra revealed that all the composites had good absorbency with a shift towards short wavelengths. While it was observed from the analysis of X-ray diffraction (XRD) the formation of a hexagonal wurtzite crystal structure due to zinc oxide with a polycrystalline nature. The average crystal size calculated from the Debye-spark equation increased with the increase in the concentration of the streaked material. Antibacterial activity was studied for all prepared samples against Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) at different μg/ml concentrations (500, 750, and 1000). It was observed that the highest inhibition Zone for functionalized multiwalled carbon nanotubes (F-MWCNT) and ZnO-MWCNT hybrid was (17.3, 12.3mm), (22.5, 19mm) for Escherichia coli and Staphylococcus aureus, respectively.

An XAFS Study on the Electronic Structure Study of the Boron Substituted CuFeO2

CuFeO2 is a well known antiferromagnetic material due to its geometrically frustrated antiferromagnetic (AFM) [TN=11K] character. Besides, delafossite CuFeO2oxide crystal is known to be under the influence of oxygen nonstoichiometry as a result of the change in cation valence bands. In this study, boron atoms were substituted in the Fe coordination and the electronic response on irons valence band is probed. Also, the possible influence of boron substitution on the electrical properties via the photoelectrons’ mean free path is investigated. Due to the high difference in the ionic radii of the host and substituted atoms, different crystal structure formation was expected. However, calculations showed that boron atoms tend to locate in Fe coordination and preferred to be part of the host crystal by bonding with the oxygen atoms. In addition, the presence of the light boron atoms was determined to weaken the scattering intensities which cause a longer mean free path for the photoelectrons which means better conductivity of the material.

Study of UV-sensitive Ag doped WO3 prepared using ultra-sonification

In this research work, authors have investigated optical and structural properties of silver doped tungsten oxide. The method used for preparation of samples is rapid, easy and prolific wet chemical precipitation synthesis technique with novel feature of ultrasonification. A series of samples with varying concentration of dopant was prepared and characterized using different sophisticated instruments. X-Ray Diffraction (XRD) reveal formation of hexagonal crystal structures with an average crystallite size of 25 nm. TEM images show square and rectangular nanoplates with silver nanoparticles deposited on them in case of pure and Ag doped tungsten oxide respectively. A considerable decrease in band gap in Ag doped WO3 was observed with the increase in doping concentration(0.1, 0.25, 0.5, 0.75 and 1 mmol). UV-Rays with wavelength ranging from 225 nm to 400 nm were completely absorbed and blue emission was obtained from as-synthesized nanocomposites when excited by 325 nm ultraviolet light. This novel property of Ag doped WO3 shows great potential in preparation of UV-light sensitive “smart glasses”.

Impact of Annealing Temperature on Structural, Optical, and Morphological Properties of ZnO Nanoparticles Synthesized by a Simple Precipitation Method

Objective: Herein, we report zinc oxide (ZnO) nanoparticles (NPs) synthesized by a simple precipitation method using zinc acetate dihydrate (Zn(CH3CO2)2. 2H2O) and sodium hydroxide (NaOH) precursors in aqueous media. Method: Synthesized material was annealed at different temperatures to check phase formation and its purity. Results: At room temperature, the sample shows the formation of zinc hydroxide and at high temperature (100, 200, and 300°C) shows the formation of ZnO. Synthesized materials were analyzed by different techniques. X-ray diffraction analysis shows the formation of a hexagonal crystal structure. Morphological features were analyzed by the SEM technique which shows agglomerated nanoparticles. Conclusion: The optical properties of ZnO were studied by using UV analysis and showed intrinsic excitonic transition property of the ZnO semiconductor. Further, with an increase in annealing temperature crystalline size, agglomeration of nanoparticles found to be increased whereas the bandgap decreased.

Molecular Structure‐Property Relationships of the Asymmetric Thienoacenes: Naphtho[2,3‐b]thieno[2,3‐d]thiophene, Anthra[2,3‐b]thieno[2,3‐d]thiophene, and their Thienyl Derivatives

AbstractPolycyclic aromatic compounds are attractive candidates for organic semiconductor materials whose optical and charge transport properties are significantly influenced by the molecular and packing structures. In this work, we investigated the crystal structure and physical properties of asymmetric bent‐shaped thienoacenes, which have a thieno[3,2‐b]thiophene unit at the end of the fused aromatic ring core, and their thienyl extended‐type derivatives. Among the naphthalene‐based analogs, naphtho[2,3‐b]thieno[2,3‐d]thiophene and its thienyl derivative gave an antiparallel slip‐stack structure. In contrast, among the anthracene‐based analogs, anthra[2,3‐b]thieno[2,3‐d]thiophene produced an antiparallel slip‐stack structure, while its thienyl derivative gave a layered structure with a large molecular orbital overlap. In extended conjugated systems, molecular symmetry of the long axis and dispersion forces were improved, resulting in the formation of crystal structures with large intermolecular interactions. These results suggest the importance of both the extension and molecular symmetry of a conjugated system to controlling the molecular structure.

Fast and Scalable Synthesis of LiNi0.5Mn1.5O4 Cathode by Sol–Gel‐Assisted Microwave Sintering

High‐voltage spinel LiNi0.5Mn1.5O4 (LNMO) is a promising cathode material for high‐energy‐density and high‐power‐density lithium‐ion batteries (LIBs). The high cost of the currently available LIBs needs to be addressed urgently for wide application in the transport sector (electric vehicles, buses) and large‐scale energy storage systems (ESS). Of significance, herein, novel fast and scalable microwave‐assisted synthesis of LNMO is reported, which leads to a production cost cut. X‐ray diffraction (XRD) analysis confirms the formation of the desired phase with high crystallinity. Field emission scanning (FE‐SEM) and transmission electron microscopy (TEM) analyses indicate that the synthesized phase is of nanometric size (50–150 nm) due to an extremely short sintering time (20 min). The material synthesized at 750 °C shows a higher initial discharge capacity (130 mA h g−1) than that synthesized at 650 °C (115 mA h g−1). The materials heat treated at higher temperatures show better electrochemical performance in terms of initial capacity, rate capability, and improved cycling. The improved electrochemical performance of LNMO at 750 °C is attributed to the formation of a stable crystal structure, low charge transfer resistance at the electrode/electrolyte interface, high electrical conductivity due to the presence of a disorder structure, and improved ionic diffusivity.

Structure and optical properties of nanocomposites based on polystyrene (PS) and calcium titanate (CaTiO3) perovskite nanoparticles

Polystyrene (PS) thin films containing 4% and 8% calcium titanate (CaTiO3) perovskite nanofiller were prepared by film casting techniques. The influence of CaTiO3 loading on the structure and optical characteristic of PS were studied by using X-ray diffraction and UV-absorption spectroscopy. The XRD analysis showed the addition of CaTiO3 into PS enhanced the formation of crystal structure and resulted in the formation of nano-crystal with a smaller diameter. The optical characterizations showed that the addition of CaTiO3 reduced the transmission and increased the reflection of PS films for UV and visible wavelength of the incident light. Absorption of pure PS films was limited to less than 270 nm, while the absorption of PS/CaTiO3 composites film covered the whole UV -range. The values of the optical energy gap were calculated by using Tauc equation. It was found that the addition of 8% CaTiO3 decreased the values of optical energy gaps from 4.42 eV to 4.26 eV. This is suggested the formation of extra energy levels in the bandgap tails, which aided the transition of electrons from the valence band to these new energy levels in the conduction band.

Influence of anionic precursors on electrochemical properties of tin oxide nanoparticles: a comparative analysis

A cost-effective chemical precipitation method has been adopted to synthesis tin oxide (SnO2) nanomaterials with the help of two different anionic sources (NH3OH and NaOH). Initially, the X-ray diffraction (XRD) studies confirm the formation of regular rutile tetragonal crystal structure of SnO2. The functional group analysis by Fourier transform infra-red (FTIR) spectroscopy identifies the presence of Sn-OH stretching mode of vibration. The morphological with elemental confirmation by HRSEM with EDAX analysis observes the formation of SnO2 agglomeration in appropriate ratio (Sn and O) without showing any other impurities. The particle size analysis (PSA) reveals that the synthesized SnO2 nanomaterials are in a nano-sized range of 10 nm to 33 nm. The optical analysis using UV–Visible (UV) and photoluminescence (PL) spectroscopy reveals that the bandgap energy of synthesized materials is found to be 4.12 eV and 4.14 eV, blue-shifted from bulk materials. The electrochemical behavior of synthesized tin oxide nanomaterials as working electrodes are examined by a conventional three-electrode system with analyzed parameters such as cyclic voltammetry (CV), galvanostatic charge–discharge (GCD) and electrochemical impedance spectroscopy (EIS). This study exposes the highest specific capacitance Csp value of 405.15 F g−1 at a scan rate of 1 mV s−1 and 403.72 F g−1 at a current density of 0.5 Ag−1. The highest energy density and power density value of 27.48 Wh kg−1 at 0.5 Ag−1 and 145.83 W kg−1 at 1 Ag−1, respectively, presents a promising positive working electrode material for supercapacitor applications.

Structural, Mechanical and Magnetic Characterization of Rare Earth Double Doped SrBi2Nb2O9 lead Free Ceramics

Lead free dielectric materials of Strontium Bismuth Niobate SrBi2Nb2O9 (SBN) and rare earth double doped SrBi1.8Pr0.1Gd0.1Nb2O9 (SBPGN), SrBi1.8Pr0.1Y0.1Nb2O9 (SBPYN), SrBi1.8Eu0.1Gd0.1Nb2O9 (SBEGN) and SrBi1.8Eu0.1Y0.1Nb2O9 (SBEYN) were prepared by two-stage solid-state reaction route. The XRD studies have confirmed the formation of single-phase orthorhombic crystal structure. The microstructural analysis showed the formation of plausible needle shaped grains in the prepared ceramics. The FTIR study was used to investigate the effect of preparation and doping processes on the band intensities of the spectra. Mechanical studies showed that SBEGN and SBEYN ceramics exhibited mild wear (<10−6 mm3 Nm−1) compared to others. The low friction coefficient values of SBPYN (0.044), SBEGN (0.058) and SBEYN (0.002) to that of SBN necessitate lattice strain in these materials. The VSM studies on the rare earth double doped SBN ceramic materials confirmed the induction and existence of magnetic order in SBPGN and SBEGN.

Room temperature ferromagnetism in dilute magnetic semiconducting ZnO nanoparticles co-doped with Tb and Fe

Room temperature ferromagnetism with the doping of magnetic ions in the semiconducting host is the fundamental criterion for the potential use of spintronics material. In the present study, pure and (Fe, Tb) co-doped ZnO nanoparticles were well-prepared via the co-precipitation method, and corresponding microstructural, magnetic, and optical properties were investigated. The formation of Wurtzite hexagonal crystal structure of pure and doped ZnO was confirmed by X-ray diffraction (XRD) studies. No secondary phase was detected in all samples. Microstructural analysis reveals the spherical morphology of synthesized particles with the average size in the nanometer range. Fourier transforms infrared spectra show Tb–Zn–O stretching at 550 cm−1. Optical absorption spectra show that the bandgap decreases and the absorption band slightly shift toward the visible region with increasing Tb doping, which may be due to the transfer of charge between the Tb ion 4f level and ZnO valance band. The photoluminescence (PL) spectrum exhibits a strong emission in the visible range, and PL emission intensity decreases with increasing Tb concentration and is anticipated to be due to the low recombination rate of electron–hole pairs. Most importantly, the room temperature ferromagnetism (RTFM) was observed in the doped ZnO nanoparticles, ascribed to the bound magnetic polaron (BMP) mechanism. The optical and magnetic outcome demonstrates that prepared (Fe, Tb) co-doped ZnO based dilute magnetic semiconducting (DMS) material are potential candidates for spintronics applications.

Structural and optical properties of PEO/CMC polymer blend modified with gold nanoparticles synthesized by laser ablation in water

Eco-friendly and cost-effective route using water were employed for the synthesis of gold nanoparticles (AuNP's) via laser ablation technique. Formation of AuNP's were observed through the appearance of surface plasmon resonance (SPR) peak originally located at 520 nm within the UV/Visible spectrum of synthesized sample and approved with Transmission electron microscope (TEM). X-ray diffraction analysis and TEM micrograph shows the formation of fcc crystal structure of nano-sized gold with a diameter ranging between 10 and 25 nm. Virgin samples of polyethylene oxide (PEO) and carboxymethyl cellulose (CMC) in combination with their 50/50wt% blend films were synthesized via traditional solution casting techniques. Besides other samples of blend films containing a variable amount of gold nanoparticles (AuNPs) within the doping level. Different characterization techniques were employed to study the composite thin film structure. X-ray diffraction pattern reveals a barely noticed increase of the amorphous nature with increasing gold content. FTIR suggests the formation of hydrogen bonding within the composite matrix with an appearance of the characteristic vibrational groups of the constituting matrices regardless of the content of dopant AuNP's. UV/Visible electronic spectra reveal a notable change within the optical energy gap in comparison with the pristine samples attributed to the introduced dopant.