Fe-TiO&lt;sub&gt;2&lt;/sub&gt;/zeolite H-A photocatalyst for degradation of waste dye (methylene blue) under UV irradiation

Cahyanti, Ririn; Sumari, Sumari; Fajaroh, Fauziatul; Asrori, Muhammad Roy; Prakasa, Yana Fajar

doi:10.3934/matersci.2023003

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…In addition, it can be seen that all of the nanocomposite films show poor transmission between 200 and 380 nm, indicating that the nanocomposite films have a good UV shielding effect on the near-ultraviolet region. TiO 2 colloid hydrosol exhibits highly selective photocatalysis to MB, so MB can be photodegraded by UV light under its catalysis. − Therefore, it is an interesting experiment to assess the UV shielding effect of the material according to the photodegradation principle of MB. The UV shielding simulation experiment based on the photodegradation principle of MB and the UV shielding mechanistic diagram of WPU–PDA nanocomposites are displayed in Figure a,b, respectively.…”

Section: Resultsmentioning

confidence: 99%

Thermal-Driven Self-Healing Polyurethane Based on Polydopamine Nanoparticles with Enhanced Mechanical and UV Shielding Properties

Huang,

Ouyang,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

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Ultraviolet (UV) shielding materials have garnered widespread applications in biological protection, aerospace, intelligent coating, and other fields. However, they are vulnerable to external friction scratches due to prolonged exposure, which leads to a decline in their UV shielding ability, further limiting their long-term applications. In this work, a series of waterborne polyurethane−polydopamine nanocomposites with excellent self-healing and UV shielding properties were prepared, among which using waterborne polyurethane with Diels−Alder thermally reversible cross-linked networks as the substrate and polydopamine (PDA) nanoparticles as the UV shielding agent. The developed nanocomposites can achieve a good self-healing effect at 120 °C in 30 min, and the self-healing efficiency can reach more than 68%. Adding PDA nanoparticles can enhance the mechanical and UV shielding properties of the nanocomposite. The nanocomposite with 0.5 wt % PDA contents has both the highest tensile strength and elongation at break, with values of 9.9 MPa and 667.27%, respectively. UV−vis tests exhibit that the residual amount of methylene blue solution under the protection of the nanocomposite film containing 2 wt % PDA content could reach 63.81%, concluding that the as-prepared nanomaterials have excellent UV shielding properties. This study offers an idea for the production of excellent and durable UV shielding materials with self-healing properties.

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Section: Resultsmentioning

confidence: 99%

Thermal-Driven Self-Healing Polyurethane Based on Polydopamine Nanoparticles with Enhanced Mechanical and UV Shielding Properties

Huang,

Ouyang,

Zhang

et al. 2024

ACS Appl. Polym. Mater.

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“…Studies have demonstrated that doping multivalent Mn into ZnO enhances photocatalytic activity by improving charge separation and inhibiting recombination (Lu et al, 2012). Researchers have also developed novel composite materials, such as Fe‐TiO 2 /zeolite H‐a and Fe (III) cluster‐modified Bi 12 O 17 Cl 12 , which exhibit enhanced photocatalytic degradation efficiency compared with pure TiO 2 (Cahyanti et al, 2023; Meng et al, 2020). And the introduction of Mn 2+ into BiOCl increases the specific surface area, broadens the light absorption range, and promotes the separation of photogenerated carriers (Cao et al, 2020).…”

Section: Review On Photocatalytic Degradation Of Water Pollutantsmentioning

confidence: 99%

The synergistic degradation of pollutants in water by photocatalysis and PMS activation

Yueyu

2023

Water Environment Research

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In recent years, the synergistic degradation of water pollutants through advanced oxidation technology has emerged as a prominent research area due to its integration of various advanced oxidation technologies. The combined utilization of peroxymonosulfate (PMS) activation technology and photocatalysis demonstrates mild and nontoxic characteristics, enabling the degradation of water pollutants across a wide pH range. Moreover, this approach reduces the efficiency of electron hole recombination, broadens the catalyst's light response range, facilitates electron transfer of PMS, and ultimately improves its photocatalytic performance. The paper reviews the current research status of photocatalytic technology and PMS activation technology, respectively, while highlighting the advancements achieved through the integration of photocatalytic synergetic PMS activation technology for water pollutant degradation. Furthermore, this review delves into the mechanisms involving both free radicals and non‐radicals in the reaction process, and presents a promising prospect for future development in water treatment technology.

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“…Household wastewater has been recycled using various methods. One is using the photodegradation method, namely utilizing ultraviolet light for the photocatalyst activity to absorb photons and simultaneously carry out transformation reactions at the material interface [1,2].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of TiO2-Fe for photocatalytic applications of domestic waste

Rahmadhani

Nasution²,

Prasetya³

et al. 2023

Acta.Chim.Asiana

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Wastewater originating from household, industrial, and public places that contains materials can endanger human life and living things and disrupt environmental sustainability. Various methods have recycled domestic wastewater. One is through the photodegradation process utilizing ultraviolet light in the photocatalytic process. Inorganic materials are semiconductors with photocatalyst activity that can absorb photons and simultaneously carry out material interface transformation reactions. The research aimed to determine the effect of adding Fe metal dopants on TiO2 photocatalyst activity in simulated methylene blue and domestic waste treatment. The precursor used was TiO2 P25 Degussa Anatase. Fe dopant was added using the hydrothermal method with variations of 2%, 4%, and 6%. The XRD characterization results show that TiO2 has a high degree of crystallinity, so the overall process of electron diffusion and electron transfer in SSPT is higher to increase its efficiency. SEM-EDX characterization results show that TiO2-Fe particles are scattered in a spherical shape with a size of less than (<)100 nm and tend to agglomerate. Test results of simulated methylene blue (MB) waste with a UV-Vis spectrophotometer at variations in mass, concentration, pH, and time showed that the addition of doping could increase photocatalytic activity and optimum conditions at 6% (F6) were used in the analysis of parameters pH, COD and TSS of domestic wastewater. The pH value increased from 5 to 6, % COD degradation was 59.17%, and TSS was 23.07%. This research showed that TiO2-Fe was effective enough for domestic wastewater treatment.

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Fe-TiO<sub>2</sub>/zeolite H-A photocatalyst for degradation of waste dye (methylene blue) under UV irradiation

Cited by 4 publications

References 35 publications

Thermal-Driven Self-Healing Polyurethane Based on Polydopamine Nanoparticles with Enhanced Mechanical and UV Shielding Properties

Thermal-Driven Self-Healing Polyurethane Based on Polydopamine Nanoparticles with Enhanced Mechanical and UV Shielding Properties

The synergistic degradation of pollutants in water by photocatalysis and PMS activation

Synthesis and characterization of TiO2-Fe for photocatalytic applications of domestic waste

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