Nano Thin Films Research Articles

Development of chitosan-TiO2 thin film and its application for methylene blue dye degradation

ABSTRACT Fish processing industries are one of the pollution-causing sectors all over the world due to the generation of huge quantities of solid and liquid wastes and lacks proper treatment facilities. Wastewater treatment using nano-thin films will be one of the most promising technologies for the treatment of industrial effluents by saving considerable amount of money. Therefore, the current research aims to develop an energy-efficient, eco-friendly, cost-effective and green isolation technique for the production of natural polymer from crab shell followed by the development of nano thin films by dip-coating technique for the degradation of methylene blue dye. The stability studies of the nano thin films were performed at different environmental conditions. The characterisation techniques employed are Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR), and UV–Visible spectroscopy. A series of batch experimental studies were performed using the fabricated thin films for the degradation of methylene blue dye by varying the effluent solution pH (2.0 to 10.0), concentration of dye solution (0.1 mg/L – 1.0 mg/L), exposure time (30 min to 210 min) and number of layers (2 to 14) of thin-film deposition for the optimisation of processing conditions. The best processing conditions obtained from the batch study are pH 6.0, 0.60 mg/L dye concentration, 120 minutes of contact time and 12 layers of thin-film deposition. The experimental study demonstrates that the chitosan-TiO2 nano thin films were found to be effective in the treatment of industrial effluent containing methylene blue dye.

Influence of gamma-irradiation on the optical and structural properties of Se85Te15-xBix nano-thin chalcogenide films

In this work, bulk Se85Te15-xBix chalcogenide glasses were synthesized by melt quenching technique. The nano-thin chalcogenide films of Se85Te15-xBix alloys with thickness 40 nm were deposited on glass/Si wafer by Physical Vapour Condensation Technique (PVCT). Their optical and structural properties were analysed by the exposure of different gamma irradiation doses. High resolution X-ray diffraction (HRXRD) and field emission scanning electron microscopy (FESEM) were used to demonstrate the crystalline and morphological properties. The phase transformation studies of nano-thin films were carried out before and after irradiation by 3, 6, and 9 kGy doses of gamma (γ) rays. The optical parameters such as absorption coefficient, Urbach tail and extinction coefficient were found to be varied with the gamma irradiation doses. Importantly, the indirect allowed band gap increased as increasing the gamma irradiation doses. These notable shifts in the optical band gap and absorption coefficient values can be explained by the increment in disorderness and lattice strain due to gamma irradiation.

Phase Field Simulation on the Surface Morphology of Cu/Ti Nano Thin Film

Cu/Ti binary thin film system has many applications for micro-/nano- electro mechanical systems (MEMS/NEMS), micro-electronics and optoelectronics. In nanoscale, the quality and many physical properties of nano thin films are strongly depended on its surface morphology. In the present paper the development of surface morphology of double layered Cu/Ti thin film heterostructure with different composition and thickness has been studied by using the phase field method. The developed method is based on solving Cahn-Hilliard equations of multi-order parameters with considering the interfacial energy and elastic energy. The simulation results show that the thickness of Ti layer and Cu layer in the double-layer thin film structure can affect the surface roughness. For the heterostructures with the Cu layer thickness was fixed at 20 nm, the surface roughness was found to vary from 0.608 nm to 0.712 nm, when the Ti layer thickness increased from 10 nm to 30 nm. The calculated surface morphology and roughness was similar to the experimentally measured values. It is believed that this simulation method is useful in designing multi-layered thin film structure for practical applications.

BEM modeling and experiment verification for thermoacoustic response of suspended nano thin films

A kind of novel suspended nano thin films that exhibit excellent thermoacoustic effects is introduced as a promising candidate and a new approach for acoustic wave generation without mechanical vibration. Although several analytical models have been established in the past to determine thermoacoustic fields and to aid design optimization, there still show many limitations. In particular, those analyses in the past are mostly only available for one-dimensional problems. In this paper, a new numerical approach based on the boundary element method (BEM) is developed for predicting acoustic fields excited from a suspended thermoacoustic (TA) nano thin film with an arbitrary three-dimensional configuration. To substantiate the numerical model, experimental studies on the thermoacoustic emission of carbon nanotube (CNT) thin films are performed to verify the proposed method and excellent agreement is observed. By using the numerical approach, the accuracy and applicability of two recently developed analytical models for suspended CNT thin films are evaluated and discussed in detail. Furthermore, the influence of irregular deformation of CNT thin films on the acoustic field is investigated.

A REVIEW OF LAST DEVELOPMENTS IN THIN FILMS PARAMETERS OF DIRECT CURRENT SPUTTERING FOR OPTICAL AND BIOMEDICAL APPLICATIONS

Nano thin films and nano coating have been applied in different fields in health care system because of their higher antiviral properties. Additionally, as the world have suffered since December 2019 from Covid-19 situation, different scientists and industrials people have tried to apply nano antiviral films and coatings in our daily life. In this short review, nano thin film coating procedure by DC sputtering technique has been reviewed, investigated, and evaluated by using different materials and device parameters in recent years. This report focuses on device factors that affect the thickness of nano-thin films for optical and optic-electric applications. These parameters including time, temperature, power, pressure, and flow rate of gases. The review provides more understanding meaning of the coating procedure by DC sputtering process.

Influence of current density on the physical properties of electroplated NiFeP nano thin films for MEMS applications

Nanocrystalline thin films of NiFeP have been synthesized through electroplating technique on Copper substrate by varying the current densities from 5 to 20 mA/cm2 at constant bath temperature. The chemical composition of the NiFeP thin films and their corresponding surface features have been studied using energy dispersion X-ray analysis and scanning electron microscopy, respectively. Surface roughness was assessed using atomic force microscopic technique and X-ray diffraction (XRD) was used to study the nature and structure of the nano-crystalline material. The magnetic activity of NiFeP thin films was analyzed using a vibrating sample magnetometer (VSM). The surface analysis indicates that the coatings are smooth and free from cracks while the XRD data reveal the crystalline nature and the average crystalline dimensions of the nano thin films. The thickness of the NiFeP thin films measured at various current density values were observed to be in the range of 26–58 nm. VSM test shows higher magnetization values along with low coercivity for NiFeP thin films. A maximum saturation magnetization of 71.36 × 10–3 emu with a coercivity of 301 Gauss is also found to be exhibited by the NiFeP thin films that are coated at higher current densities. The adhesion of coated NiFeP thin films and their corresponding micro hardness have been also studied. Owing to their observed mechanical stability and magnetic nature, the prepared NiFeP thin films has a potential to be exploited for device applications for Micro-Electro-Mechanical Systems (MEMS).

Metal–semiconductor–metal visible photodetector based on Al-doped (Cd:Zn)S nano thin films by hydrothermal synthesis

High quality undoped and Al-doped nanocrystalline (Cd:Zn)S films [CZS and ACZS] were deposited on glass substrates by hydrothermal assisted chemical bath deposition. The Al concentration was varied from 0.5 mol.% to 2 mol.% in steps of 0.5 mol.% replacing cadmium while keeping other deposition parameters constant. XRD, SEM, and EDX were used to observe crystallinity, morphology and composition of the as prepared samples. X-ray diffraction revealed the hexagonal phase of CZS films with prominent orientation along the (002) plane. XPS analysis was used to confirm the doping concentration of Al in to CZS lattice. Repeatable photoresponse was recorded under 100 s cycle light-on and light-off conditions. 1 mol.% Al doped film being optimised as good photoconductor; a photodetector was fabricated with Ag/ACZS/Ag device structure. The ACZS photodetector exhibits similar time response, good photocurrent reproducibility and a sharp photoresponse at blue radiation with high photo-dark current ratio of 95. The device exhibits peak responsivity of 3.48 mA W−1 and detectivity of 1.26 × 1011 Jones at 470 nm. These properties suggest that the ACZS photodetector holds great potential for application in high-performance visible photodetectors, especially in the blue region.

Elastic constant of dielectric nano-thin films using three-layer resonance studied by picosecond ultrasonics

Elastic constants and sound velocities of nm order thin films are essential for designing acoustic filters. However, it is difficult to measure them for dielectric thin films. In this study, we use a three-layer structure where a dielectric nano-thin film is sandwiched between thicker metallic films to measure the longitudinal elastic constant of the dielectric film. We propose an efficiency function to estimate the optimal thicknesses of the components. We use Pt/NiO/Pt three-layer films for confirming our proposed method. The determined elastic constant of NiO deposited at room temperature is smaller than the bulk value by ∼40%. However, it approaches the bulk value as the deposition temperature increases. We also reveal that the uncertainty of the elastic constant of the Pt film insignificantly affects the accuracy of the determined elastic constant of NiO in this structure.

The photo response properties of shape memory alloy thin film based photodiode

In this work, the CuAlMn shape memory alloy (SMA) composed as Cu-12.28Al-2.84Mn in wt.% (=72.49Cu-24.70Al-2.81Mn in at.%) was used as a thin Schottky contact layer on an n-Si wafer to produce a Schottky type Al/CuAlMn/n-Si/Al photodiode. To do this, in the first stage of the experimental route, the CuAlMn alloy was prepared in succession by casting in arc melter, homogenizing in β-phase region and lastly by quenching in iced-brine water. Then, the shape memory effect characteristics were revealed by the widely-used thermal (DSC and DTA) and structural (EDS and XRD) characterization tests that been carried out on the alloy. Then, the alloy was thermally evaporated and deposited on the n-Si wafer as a thin film nano layer to make the Al/CuAlMn/n-Si/Al photodiode. The current-voltage (I-V) analysis of the diode taken under dark and different light intensities revealed the rectifying behavior of the diode. The work function value of CuAlMn alloy film was determined as 4.747±0.17 eV. The reverse bias current values of the diode under light were found to be greater than the value observed under dark. The results showed that the diode has a considerable photoconducting feature. The characteristic electrical diode parameters of the junction were computed by using the traditional I-V method. By taking into consideration the literature works related to SMA layered photodiodes, some of the photodiode parameters such as responsivity, photosensitivity, and detectivity, not been reported so far, were determined for the first time. The SMA/n-Si device showed an excellent photosensitivity (~105) performance, and also good merits of responsivity, and detectivity. Which implied that the produced device can be used in various optoelectronic applications. The transient photocurrent (TPC) measurement was performed under the various light intensity conditions and the related characteristic photodiode parameters were determined. Additionally, the capacitance-voltage (C-V) measurement of the SMA-layered photodiode was also carried out at room temperature and different frequencies. The capacitance of the device was observed to be quite sensitive to frequency. Furthermore, a solution suggestion for SMA film cracks and related fractures was also discussed.

Nano-Synthesis, characterization and spectroscopic Studies of chromium (III) complex derived from new quinoline-2-one for solar cell fabrication

In this work, Schiff base ligand (L) has been synthesized by condensation reaction of N-amino quinoline-2-one with 4-chlorobenzaldehyede in ethanol, for 5 hours. The synthesized ligand was characterized using (13C,1H NMR), (U.V-Vis), X-ray diffraction (XRD), (FT-IR), (C.H.N) elemental analysis, atomic force microscope (AFM) and melting point. The chromium complex was obtained by (2:1) (L: M) molar ratio and then characterized by FT-IR, UV-Vis, molar conductivity, magnetic susceptibility measurements, AFM, XRD and flame atomic absorption technique (FAA). The results confirmed an octahedral geometry of chrome ion (III). Drop casting techniques was used to prepare nano-thin films of the synthesized compounds. The aim of this study was to fabricate solar cells using the prepared nano-thin films. To achieve, the morphological, structural and optical properties of the nano-thin films were studied, and then they were precipitated on the silicon slides. The fabricated solar cells showed a high efficiency promising to be used for improving silicon solar cells.

Influence of annealing temperatures on Nb2O5 nanostructures prepared using Pulsed Laser Deposition method

Nb2O5 nanostructures were successfully deposited by a Pulsed Laser Deposition technique (PLD) onto quartz substrates. The effects of annealing temperature on the optical morphological and structural properties deposited nano-thin films were investigated. The X-ray diffraction (XRD) results indicated the formation of the monoclinic crystalline structure, with a preferential orientation at the (301) direction. The optical energy band gap found to increase from 2.9 to 3.3 eV.

An Experimental study of some Physical properties on Gallium Antimonide Nanocrystals

This study includes preparing Nano-thin films of gallium antimonide (GaSb) and study the physical properties of this films. These films are prepared by using a vacuum evaporation technique with pressure (10−6 Torr). They were deposited on glass substrates. After the preparation process, some of its optical and structural properties, such as (energy gap, optical absorption, AFM, SEM and XRD) were studied. By discussing the results, it was found that the prepared GaSb thin films have worthwhile structural and optical properties. These properties can be used in the preparation and manufacture of infrared devices, laser detectors and photoelectric applications. The distinguished obtained characteristics are of interest to a large number of researchers within the fields of semiconducting materials. The potential applications that could employ GaSb Nano-thin films in their work are infrared devices and wide range applications of detectors and photo electronics. For example, Li-Fi technology, which relies on visible light as a means of transmitting data instead of radio frequencies, in addition to it does not generate any radiation as in Wi-Fi, as it ultimately depends on visible light.

Three-component coupling approach for the synthesis of 4H-pyrans and pyran-annulated heterocyclic scaffolds utilizing Ag/TiO2 nano-thin films as robust recoverable catalyst

As a segment of ongoing surveys and with the aim of expansion of environmentally benign processes, a series of biologically varied type of substituted 2-amino-3-cyano-4 H -pyrans and pyran-annulated Scaffolds have been synthesized by tandem Knoevenagel-cyclocondensation of aldehydes, malononitrile, and C-H-activated acidic compounds in aqueous ethanol in the presence of Ag/TiO 2 nano-thin films as an eco-friendly, recyclable, and, robust catalyst at 60°C. The salient features of this protocol are mild reaction conditions, producing target compounds in high yields, short reaction times, high atom economy, eco-friendly catalyst, easy isolation of products and no column chromatographic separation. Also, it is observed that the catalyst is highly stable during the reaction and several reuse times without observable loss in catalytic performance.

Sputter-engineering a first-order magnetic phase transition in sub-15-nm-thick single-crystal FeRh films

Equiatomic FeRh alloys undergo a fascinating first-order metamagnetic phase transition (FOMPT) just above room temperature, which has attracted reinvigorated interest for applications in spintronics. Until now, all attempts to grow nanothin FeRh alloy films have consistently shown that FeRh layers tend to grow in the Volmer-Weber growth mode. Here we show that sputter-grown sub-15-nm-thick FeRh alloy films deposited at low sputter-gas pressure, typically $\ensuremath{\sim}0.1$ Pa, onto (001)-oriented MgO substrates, grow in a peening-induced Frank-van der Merwe growth mode for FeRh film thicknesses above 5 nm, circumventing this major drawback. The bombardment of high-energy sputtered atoms, the atom-peening effect, induces a rebalancing between adsorbate-surface and adsorbate-adsorbate interactions, leading to the formation of a smooth continuous nanothin FeRh film. Chemical order in the films increases with the FeRh thickness, ${t}_{\text{FeRh}}$, and varies monotonically from 0.75 up to 0.9. Specular x-ray diffraction scans around Bragg peaks show Pendell\"osung fringes for films with ${t}_{\text{FeRh}}\ensuremath{\ge}5.2$ nm, which reflects in smooth well-ordered densified single-crystal FeRh layers. The nanothin film's roughness varies from 0.6 down to about 0.1 nm as ${t}_{\text{FeRh}}$ increases, and scales linearly with the integral breadth of the rocking curve, proving its microstructured origin. Magnetometry shows that the FOMPT in the nanothin films is qualitatively similar to that of the bulk alloy, except for the thinnest film of 3.7 nm.

(Invited) Intrinsic and Interfacial Ion Transport Properties of Nanostructured Polymer Electrolytes for Lithium Metal Batteries

Polymer electrolytes have demonstrated promise as solid electrolyte materials to enable lithium-metal batteries. However, majority of studies have focused only on thick samples (100’s of microns). It is important to note interfaces play a critical role on the performance of batteries, thus investigating polymer electrolytes in the context of nanothin films (5-100 nm) will lead to better understanding on how surfaces and interfaces influences charge transport properties. Here, we report on ion transport characteristics of nanothin films of PEO and LiTFSI blends as a function of salt concentration, temperature and film thickness. Ion transport measurements were successfully performed using impedance spectroscopy on films fabricated on custom-designed nanofabricated interdigitated electrode (IDE) devices. Importantly, thickness dependence study of ion transport shows a monotonic decrease in ionic conductivity upon decreasing film thickness from 250 nm to ca. 10 nm, and the effect is stronger at low salt concentrations. The decrease of ionic conductivity at thinner films originate from the increasing fraction of the immobilized layer near the polymer/substrate interface. In addition, these measurements reveal previously inaccessible diffusional processes that are critical to fully characterizing transport properties. We also extend our work towards nanostructured block copolymer nanothin film electrolytes (polystyrene-b-polyethylene oxide with LiTFSI). By carefully tuning the substrate surface energy, we can judiciously control block copolymer self-assembly and orientation to reveal previously inaccessible interfacial contributions that dictate the limits of ion-transport. Overall, our work shows that nanothin films in concert with IDEs is a powerful and versatile platform for studying a wide variety of confinement and surface functionalization effects on ion transport in a controlled and precise manner.

Quantifying the Impacts of Nafion Interfaces with PEMFC-Relevant Substrates through Neutron Reflectometry and Modeling

The critical electrochemical reactions within proton exchange membrane fuel cells (PEMFCs) take place in the heterogeneous catalyst layer (CL). This CL is comprised of three main materials: carbon, platinum, and thin film Nafion. The CL ionomer, Nafion, is particularly important with respect to PEMFC performance and durability. Ionic and charge-neutral reactants and products move through nano-thin Nafion films to reach the carbon-supported platinum catalyst. Increasing the rate of transport through these films reduces cell overpotentials. As the platinum loading of PEMFCs is reduced, to lower costs, the loss of catalyst surface area also decreases the performance; therefore, performance increases obtained from a better understanding of Nafion thin films become more vital in the establishment of low cost and high performance PEMFCs.Neutron reflectometry (NR) is a technique that can be used to simultaneously study the structure and chemical composition of Nafion at length scales relevant to PEMFC CLs. Relating the composition profiles from NR to transport properties across thin-film Nafion gives insight into the relationship between the material’s structure and properties. To date, a majority of NR studies involving Nafion have been performed on the native oxide surface of silicon substrates, where complex layered structures are observed with distinct water-rich and water-poor regions within the polymer [1,2]. Although these studies are useful, their relevance to common PEMFC CL materials (i.e. platinum and carbon) is indirect.In this presentation, we will show and discuss composition depth profiles for Nafion thin films (< 100 nm) on PEMFC-relevant substrates. Experiments performed in both humidified and dry environments allow for robust fits to the data sets. Data from the humidified environment provides insight into Nafion’s water uptake and structure within an operating PEMFC. In contrast to silicon interfaces, Nafion thin films on PEMFC-relevant materials demonstrate much less structuring, with a lower degree of phase segregation in the through-film direction [3,4]. We will provide a detailed look at polymer depth profiles, and discuss the implications of these on PEMFC performance, in particular their influence on ionic conductivity, oxygen diffusivity, and the resulting platinum surface kinetics. Predictions for these relationships and their impacts will also be discussed with the use of a physically based PEMFC model extended from our earlier work [5].[1] S. C. DeCaluwe, A. M. Baker, P. Bhargava, J. E. Fischer, and J. A. Dura, “Structure-property relationships at Nafion thin-film interfaces: Thickness effects on hydration and anisotropic ion transport,” Nano Energy, vol. 46, pp. 91–100, 2018.[2] S. A. Eastman, S. Kim, K. A. Page, B. W. Rowe, S. Kang, C. L. Soles, and K. G. Yager, “Effect of Confinement on Structure, Water Solubility, and Water Transport in Nafion Thin Films,” Macromolecules, vol. 45, no. 19, pp. 7920–7930, 2012.[3] J. A. Dura, V. S. Murthi, M. Hartman, S. K. Satija, and C. F. Majkrzak, “Multilamellar Interface Structures in Nafion,” Macromolecules, vol. 42, no. 13, pp. 4769–4774, 2009.[4] U. N. Shrivastava, H. Fritzsche, and K. Karan, “Interfacial and Bulk Water in Ultrathin Films of Nafion, 3M PFSA, and 3M PFIA Ionomers on a Polycrystalline Platinum Surface,” Macromolecules, vol. 51, no. 23, pp. 9839–9849, 2018.[5] C. R. Randall and S. C. DeCaluwe, “Physically Based Modeling of PEMFC Cathode Catalyst Layers: Effective Microstructure and Ionomer Structure–Property Relationship Impacts,” Journal of Electrochemical Energy Conversion and Storage, vol. 17, no. 4, Jan. 2020.

Long-period grating fiber-optic sensors exploiting molecularly imprinted TiO2 nanothin films with photocatalytic self-cleaning ability.

Highly sensitive and selective long-period grating (LPG) fiber-optic sensors modified with molecularly imprinted TiO2 nanothin films were fabricated. The films were deposited onto the surface of the optical fiber via liquid-phase deposition (LPD), using tetrakis(N-methylpyridinium-4-yl)porphyrin (TMPyP) as a template. Three LPG resonance bands were monitored during film deposition, which was of duration 4.5h. Prior to template removal, heat treatment at 60°C under high-humidity conditions led to an increase in refractive index of the TiO2 film, evidenced by changes in the central wavelengths of the attenuation bands. After template removal using HCl solution (0.01M), the TMPyP-imprinted film-modified LPG sensor showed higher sensitivity to the template molecule than to structurally related guest molecules. This was measured at the 1st and 2nd resonance bands, with wavelengths ranging from 690 to 738nm and 815 to 905nm, respectively. No selective binding of the template was observed with a non-imprinted TiO2 film prepared in the same manner. Furthermore, the heat-treated imprinted films exhibited a substantial enhancement of photocatalytic activity for template irradiation. In particular, the self-cleaning property of the imprinted film-modified LPG sensor under ultraviolet irradiation led to highly efficient and selective binding to the template. The mechanism of the interaction between the template and the TiO2 matrix was investigated by UV-vis and Fourier-transform infrared (FTIR) spectroscopies. Additionally, morphological studies using scanning electron microscopy (SEM) were conducted. Graphical abstract.

Effect of doping on microstructure and optical properties of ternary structure of Zn1−x−yBxCyO (B=Cu, C=Co) nano thin films

We report the results of an in depth study of optical and microstuctural properties of thin films of Zn1−x−yCuxCoyO system (x = 0,00 and 0.02, y = 0.00, 0.01, 0.02, 0.03, 0.04. and 0.05) which are grown by the sol–gel method. We have performed differential thermal analysis, and thermo gravimetric analysis/difference thermogravimetric analysis, x-ray diffraction, scanning electron microscopy, energy dispersive spectrometer, atomic force microscopy and UV–VIS spectrophotometer experiments. We have found that all of the studied samples are in hexagonal wurtzite structure and oriented along the (002) direction with a very weak signal for the (101) reflection. We have also found that the lattice parameter c increases with doping. All the films showed wrinkle network structure with nano-sized crystals and the grain size was observed to decrease with increasing Co doping. The bandgap was found to decrease from 3.28 to 3.22 eV with doping. All the above results will be discussed in detail.

Improvement of photoresponse in an isatin hydrazone/CdTe hybrid heterostructure device via ZnO chelation for photovoltaic applications

In the present study, a new approach for obtaining a new isatin hydrazone (IL) dye has been carried out. Two types of hybrid inorganic/organic heterojunctions based on CdTe/IL and CdTe/ZnOIL have been fabricated using IL and ZnOIL nano thin films. The impedance spectroscopy technique was used to compare FTO/CdTe/IL/Al and FTO/CdTe/ZnOIL/Al heterojunctions by applying different AC frequencies (42 Hz–5 MHz) and under different light irradiance intensities (0–90 kLux). Besides, the AC electrical properties of the fabricated heterojunctions were examined and compared with each other. The results showed that the fabricated device based on ZnOIL organic interfacial film reveals better electrical characteristics than that based on IL ligand. The enhancement of photoconductive and carrier lifetime in the hybrid system of FTO/CdTe/ZnOIL/Al is correlated with the formation of ZnOIL charge transfer in the ZnO-complex demonstrated by impedance spectroscopy analysis. The obtained result and the comparative study is drawn in the present work supply a new direction for improving the performance of the CdTe solar cells-based IL and ZnOIL interfacial organic layers.

Super selective dual nature GO bridging PSF-GO-Pebax thin film nanocomposite membrane for IPA dehydration

ABSTRACT In this work, Graphene Oxide (GO) is embedded in both selective hydrophilic layer and porous hydrophobic substrate creating a mutual bridge between the two surfaces. Pristine 1–3 µm microporous PSF prepared via dry/wet phase inversion techniques with contact angle of 74.12° has been further study with GO embedded Pebax dense selective layer. This dual nature thin film nano composite TFNC membranes managed to reduce the water contact angle down to 37.18°. As for the IPA dehydration study, the total flux up to 1.19 kgm−2h−1 and 0 wt% IPA detected in permeate was achieved with 20 wt% water feed at 30°C.