Wetting and photocatalytic properties of Ni-doped TiO2 coating on glazed ceramic tiles under visible light

Barmeh, Alireza; Nilforoushan, Mohammad Reza; Otroj, Sasan

doi:10.1016/j.tsf.2018.09.007

Cited by 35 publications

(16 citation statements)

References 30 publications

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“…This modification aims to make photocatalysts absorb visible light. Transition metals such as Cu [116], Fe and Cu [129], Co [130], Ni [131], Mn [132], Zn [133], etc., have been widely studied for doping photocatalysts. Photocatalyst doping with transition metals can change electronic structures that cause UV light absorption changes in visible light [134].…”

Section: Cation Dopantsmentioning

confidence: 99%

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective

et al. 2021

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The palm oil industry produces liquid waste called POME (palm oil mill effluent). POME is stated as one of the wastes that are difficult to handle because of its large production and ineffective treatment. It will disturb the ecosystem with a high organic matter content if the waste is disposed directly into the environment. The authorities have established policies and regulations in the POME waste quality standard before being discharged into the environment. However, at this time, there are still many factories in Indonesia that have not been able to meet the standard of POME waste disposal with the existing treatment technology. Currently, the POME treatment system is still using a conventional system known as an open pond system. Although this process can reduce pollutants’ concentration, it will produce much sludge, requiring a large pond area and a long processing time. To overcome the inability of the conventional system to process POME is believed to be a challenge. Extensive effort is being invested in developing alternative technologies for the POME waste treatment to reduce POME waste safely. Several technologies have been studied, such as anaerobic processes, membrane technology, advanced oxidation processes (AOPs), membrane technology, adsorption, steam reforming, and coagulation. Among other things, an AOP, namely photocatalytic technology, has the potential to treat POME waste. This paper provides information on the feasibility of photocatalytic technology for treating POME waste. Although there are some challenges in this technology’s large-scale application, this paper proposes several strategies and directions to overcome these challenges.

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Section: Cation Dopantsmentioning

confidence: 99%

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective

et al. 2021

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“…So, the humidity is an important parameter in photocatalytic reactions. However, the environmental humidity was decreased the adsorption capacity of activated carbon (Barmeh et al, 2018) because the activated carbon is not only one which adsorbed the pollutants, but the water molecules are also adsorbed. Once the water molecules condensed on the surface of the activated carbon, the adsorption rate is reduced.…”

Section: Photocatalytic Commercial Module Testingmentioning

confidence: 99%

“…Many scholars are committed to improve the photocatalytic activity of titanium dioxide under visible light to solve the problem of environmental pollution for saving energy and improve the efficiency. The results show through the metal (Eshaghi and Moradi, 2018;Gao et al, 2019;Matos et al, 2019;Qiu et al, 2019) non-metal (Hoseini et al, 2017;Barmeh et al, 2018;Ho et al, 2019;Shafei and Sheibani, 2019;Tbessi et al, 2019) and rare earth elements (Chiou and Juang, 2007;Yajun et al, 2011;Shao et al, 2018;Thiruppathi et al, 2018;Singh et al, 2019) doped with titanium dioxide can effectively improve the degradation efficiency of titanium dioxide on pollutants.…”

Section: Introductionmentioning

confidence: 99%

High Photocatalyst Module on Degradation of Extracted Gas from Soil under Visible Light

Fenelon

Hussain

Yang

et al. 2019

Aerosol Air Qual. Res.

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Photocatalytic oxidation (PCO) is a promising technology for air purification due to low operating cost, potentially long service life, and low maintenance. In order to establish a high efficiency for removal of solid vapor extraction (SVE), in this study activated carbon was used for adsorption of SVE and lanthanum-doped titanium dioxide as a photocatalyst. The photocatalyst was coated on the glass fiber cloth and applied to the photocatalytic module and then performed for degradation of 15 ppm toluene. The adsorption module was used to eliminate the residual contaminants. The X-ray diffraction (XRD), Scanning electron microscopy (SEM) and the diffused reflectance spectroscopy (DRS), showed the synthesis of the catalyst were successfully prepared and the photocatalytic commercial module was designed by four photocatalytic glass fiber cloths under visible light. The adsorption module was designed by five layers of activated carbon each layer contained 30 g of activated carbon sets in the photocatalytic module. When the ambient humidity is less than 4 RH%, the removal efficiency was overtaken more than 95% within 1 hour. The experimental results depict that the photocatalytic commercial module is assembled with flow rate less than 3 liters per minute and the removal efficiency can be stable for more than 72 hours.

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“…To overcome these shortcomings, TiO 2 can be doped with various elements to increase the thermal stability. Thus, photocatalytic ceramic tiles have been prepared by the deposition of Ni-TiO 2 (27), W-TiO 2 (28), Nb 2 O 5 -TiO 2 (29,30), Ag-TiO 2 (31), and (Si, P, Zr)-TiO 2 (32). In addition, the adhesion constraint can also be controlled by silanising TiO 2 particles before depositing TiO 2 -SiO 2 coatings (33)(34)(35)(36).…”

Section: Introductionmentioning

confidence: 99%

Optimising processing conditions for the functionalisation of photocatalytic glazes by ZnO nanoparticle deposition

et al. 2021

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ZnO nanospheres were synthesised and then deposited by both single- and double-fire fast processes on as-prepared ceramic substrates. The photocatalytic degradation of resazurin ink was tested under UV light. The single-fired samples did not show any evidence of photocatalytic activity because the nanoparticles melted during sintering at 1210°C. The double-fire ZnO spray-coating method successfully produced glazed materials with an active ZnO surface layer despite the high sintering temperature. The influence of experimental parameters, including the ZnO nanoparticle loading (0.03 to 1 mg/cm2) and firing temperature (650 to 800°C), were also investigated. Samples with a ZnO loading of 1 g/cm2 fired at 650°C showed the best photocatalytic activity. Increasing the temperature to 700 and 800°C led to the coalescence of ZnO nanoparticles, which reduced the photocatalytic activity.

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Wetting and photocatalytic properties of Ni-doped TiO2 coating on glazed ceramic tiles under visible light

Cited by 35 publications

References 30 publications

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective

Photocatalytic Technology for Palm Oil Mill Effluent (POME) Wastewater Treatment: Current Progress and Future Perspective

High Photocatalyst Module on Degradation of Extracted Gas from Soil under Visible Light

Optimising processing conditions for the functionalisation of photocatalytic glazes by ZnO nanoparticle deposition

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