Research on correlation between corrosion resistance and photocatalytic activity of molybdenum zinc oxide modified by carbon quantum dots pigments

Liu, Xiu-Rui; Sheng, Xiaoxiao; Yuan, Xin; Liu, Jin‐Ku; Sun, Xiaofeng; Yang, Xiaohong

doi:10.1016/j.dyepig.2019.108148

Cited by 15 publications

(1 citation statement)

References 48 publications

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“…However, relying solely on the corrosion potential (𝐸 𝑐𝑜𝑟𝑟 ) to assess the coatings' anticorrosion effectiveness is inadequate, as it mainly describes the materials' thermodynamic properties and doesn't provide a complete picture of their corrosion resistance. According to earlier studies [40], [41] smaller 𝑖 𝑐𝑜𝑟𝑟 suggests slower electrical movement. Figure 3 illustrates that while EP coatings have a minimal impact on improving the corrosion protection of mild steel, GO-based coatings significantly enhance corrosion resistance.…”

Section: Polarization Curvesmentioning

confidence: 81%

Graphene Oxide Epoxy Resin for Improving Anticorrosive Properties

Nurul Anis Athirah Ab Aziz,

Chin Wei Lai,

Boon Hoong Ong

2024

IJNeaM

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In this study, anticorrosive coatings were developed for mild steel surfaces using epoxy resin as a barrier with a high aspect ratio. The study investigated the impact of modifying graphene oxide (GO) with d-glucose (D-g) on protecting mild steel from corrosion in a 3.5 wt.% sodium chloride (NaCl) solution for 42 days. The hydrophilic nature of D-glucose, GO, and EP enabled the formation of nanocomposites with uniform distribution of D-g-modified GO in the EP coatings, reducing free volume in the epoxy matrix. The 0.7% D-g modified GO/EP coating exhibited strong anticorrosion properties even in highly corrosive conditions by achieving a high corrosion resistance value of -19.405 mm/year. According to the morphological observation, the 0.7% m-GO/EP coating displayed fewer invisible rusts on the metal substrate even after 42 days. Incorporating D-g/GO significantly improved the corrosion protection performance of the coatings by combining EP and graphene. This study marks the first report on D-g modified GO/EP composite coatings for enhanced anticorrosive properties, making it a noteworthy contribution to eco-friendly corrosion protection mechanisms in EP coating systems in Malaysia. The environmentally friendly approach aligns with sustainable development principles and has garnered global attention from researchers and scientists. Earlier research has extensively explored the effect of surface-functionalized GO particles on the corrosion resistance of polymeric coatings.

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Section: Polarization Curvesmentioning

confidence: 81%

Graphene Oxide Epoxy Resin for Improving Anticorrosive Properties

Nurul Anis Athirah Ab Aziz,

Chin Wei Lai,

Boon Hoong Ong

2024

IJNeaM

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Efficient Synthesis of Highly Photo‐stable N‐doped Carbon Quantum Dots and their Applications in Detection and Cellular Imaging of Mercury Ions

Yin

Sun

et al. 2022

ChemistrySelect

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In this work, the nitrogen doped carbon quantum dots (N‐CQDs) were synthesized by a simple microwave hydrothermal method using citric acid (carbon source) and urea (dopant) and optimized the preparation conditions by orthogonal tests. The synthesized N‐CQDs emitted a bright blue fluorescence with specific selectivity for Hg2+. The study revealed a static quenching mechanism of Hg2+ on the N‐CQDs. The N‐CQDs showed good linear correlation in the range of 0–120 μM for the detection of Hg2+ with a low detection limit of 22.50 nM. We also demonstrated the suitability of the N‐CQDs for the detection of Hg2+ in tap water and industrial wastewater with spiked recoveries of 97.56 %–103.58 %. In addition, the synthesized N‐CQDs with high fluorescence intensity, good optical stability and biocompatibility were successfully applied to fluorescent inks and imaging of Hela cells. This indicated that the synthesized N‐CQDs have promising applications in Hg2+ detection, bioimaging, and fluorescence anti‐counterfeiting.

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