Reversible wettability conversion of electrodeposited graphene oxide/titania nanocomposite coating: Investigation of surface structures

Naghdi, Samira; Jaleh, Babak; Shahbazi, Nima

doi:10.1016/j.apsusc.2016.01.193

Cited by 51 publications

(19 citation statements)

References 21 publications

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“…Based on the different oxygen functional groups, GO has emerged as a solutionprocessable material and a candidate to form a graphene family for applications in research and industry [137][138][139][140][141][142][143]. GO could be defined as a graphene layer decorated with carbonyl, hydroxyl, epoxy, and ether groups.…”

Section: Effects Of Functional Groups Of Go On Its Work Functionmentioning

confidence: 99%

Tuning the work function of graphene toward application as anode and cathode

Naghdi

Sánchez‐Arriaga

Rhee

2019

Journal of Alloys and Compounds

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The rapid technological progress in the 21 st century demands new multi-functional materials applicable to a wide variety of industries. Two-dimensional (2D) materials are predicted to have a revolutionary impact on the cost, size, weight, and functions of future electronic and optoelectronic devices. Graphene, which shows potential as an alternative to conventional conductive transparent metal oxides, may play a central role. Since its work function (WF) is tunable, graphene exhibits the interesting ability to serve two different roles in electronic and optoelectronic devices, both as an anode and a cathode.After introducing some basic concepts, this work reviews the most important advances in controlling the tuned WF of graphene, highlighting special features of graphene electronic band structure and recognizing different methods for measuring WF. The impact of thickness, type of contact, chemical doping, UV and plasma treatments, defects, and functional groups of graphene oxide are considered and related with the applications of the modulated material. The results of the review, organized in lookup tables, have been used to identify the advantages and main challenges of the tuning methods.

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Section: Effects Of Functional Groups Of Go On Its Work Functionmentioning

confidence: 99%

Tuning the work function of graphene toward application as anode and cathode

Naghdi

Sánchez‐Arriaga

Rhee

2019

Journal of Alloys and Compounds

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“…Other deposition methods for producing a conductive thin film from conductive metal nanomaterials are used less regularly than the methods introduced above; these include solution casting [66,67], the Langmuir-Blodgett deposition method [68,69], screen printing [32], stamp printing [70], electrophoretic deposition [71][72][73], and printing via laser ablation [74]. Among the methods introduced above, only some are scalable and feasible for industrial/commercial production (rod, spray, and dip coating), and more research is needed to increase compatibility with industrial demands.…”

Section: Other Deposition Methodsmentioning

confidence: 99%

A Review of Conductive Metal Nanomaterials as Conductive, Transparent, and Flexible Coatings, Thin Films, and Conductive Fillers: Different Deposition Methods and Applications

et al. 2018

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With ever-increasing demand for lightweight, small, and portable devices, the rate of production of electronic and optoelectronic devices is constantly increasing, and alternatives to the current heavy, voluminous, fragile, conductive and transparent materials will inevitably be needed in the future. Conductive metal nanomaterials (such as silver, gold, copper, zinc oxide, aluminum, and tin) and carbon-based conductive materials (carbon nanotubes and graphene) exhibit great promise as alternatives to conventional conductive materials. Successfully incorporating conductive nanomaterials into thin films would combine their excellent electrical and optical properties with versatile mechanical characteristics superior to those of conventional conductive materials. In this review, the different conductive metal nanomaterials are introduced, and the challenges facing methods of thin film deposition and applications of thin films as conductive coatings are investigated.

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“…According to the values of solubility and details of molecular modeling presented in Table 1, the herbicides can be divided to two different types: hydrophilic samples including Characterization of GO/TiO 2 nanocomposite [20]. The broad band at the range of 450-750 cm −1 in the spectra of GO/TiO 2 sample can be assigned to the stretching band of Ti-O-Ti groups [21].…”

Section: Molecular Characteristics Of Herbicidesmentioning

confidence: 99%

Removal of 2,4-D, glyphosate, trifluralin, and butachlor herbicides from water by polysulfone membranes mixed by graphene oxide/TiO2 nanocomposite: study of filtration and batch adsorption

Hosseini

Toosi

2019

J Environ Health Sci Engineer

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Purpose Degradation or decomposition of the chemical herbicides by natural reagents after using can lead to produce various types of harmful intermediates. Ultrafiltration by the mixed matrix membranes blended with the graphene oxide/TiO 2 can remove the residual herbicides from aqueous solution. Methods Graphene oxide/TiO 2 x% (x = 10, 30, 50%) was prepared by solvothermal method and blended by polysulfone to prepare GO/TiO 2 /PSf membranes for dynamic rejection of aqueous solutions of glyphosate, 2,4-D, butachlor, and trifluralin in a dead-end flow system. The blended membranes were also applied for the adsorption of herbicides in batch experiments. Results Addition of GO/TiO 2 nanocomposite increased water flux from 7.3 for pure membrane to 211-326 kg/m 2 h for mixed matrix samples in order to increase of the membrane porosity and surface hydrophilicity. The herbicides rejections were found in the range of 50-70% related to GO/TiO 2 content. It was found that the membrane blended with 0.5 wt.% of GO/TiO 2 (10%) demonstrated the most efficiency. Conclusions Details of dynamic filtration showed that the blended membrane acted based on the size exclusion mechanism. Adsorption experiments indicated that the strong attractions between H-bond donor sites of the herbicide and GO/TiO 2 nanoparticles in membranes played a key role in the increase of adsorption of herbicides on the membrane.

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Reversible wettability conversion of electrodeposited graphene oxide/titania nanocomposite coating: Investigation of surface structures

Cited by 51 publications

References 21 publications

Tuning the work function of graphene toward application as anode and cathode

Tuning the work function of graphene toward application as anode and cathode

A Review of Conductive Metal Nanomaterials as Conductive, Transparent, and Flexible Coatings, Thin Films, and Conductive Fillers: Different Deposition Methods and Applications

Removal of 2,4-D, glyphosate, trifluralin, and butachlor herbicides from water by polysulfone membranes mixed by graphene oxide/TiO2 nanocomposite: study of filtration and batch adsorption

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