Metal‐Doped Titanium Dioxide for Environmental Remediation, Hydrogen Evolution and Sensing: A Review

Mathew, Sneha; John, Bony K.; Abraham, Thomas; Mathew, Beena

doi:10.1002/slct.202103577

Cited by 9 publications

(5 citation statements)

References 95 publications

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“…[20] Therefore, doping with transition metals such as Cu, Ni, Zn, Co, Fe, and Cd caused the properties of TiO 2 to change for certain and desired applications. [21,22] TiO 2 /Cd structures produced by the electrospinning technique were used as a photocatalyst in the removal of methylene orange dye after the calcination process. As a result of the experiments, it was reported that Cd-doped TiO 2 nanoparticles showed faster photocatalytic efficiency than pure TiO 2 nanoparticles.…”

Section: Doi: 101002/gch2202300271mentioning

confidence: 99%

Degradation of Orange G, Acid Blue 161, and Brillant Green Dyes Using UV Light‐Activated GA–TiO₂–Cd Composite

Tekin,

Birhan,

Tekin

et al. 2024

Global Challenges

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In this study, photocatalysts with high photocatalytic activity performance are synthesized by synthesizing graphene aerogel‐supported, cadmium‐doped TiO2 composites by hydrothermal method for the effective degradation of organic dyes in wastewater. Here, GA–TiO2–Cd is investigated as a photocatalyst for the degradation of toxic dyes named Orange G, Acid Blue 161, and Brilliant Green in the UV part of the light spectrum. As a result of the experiments, it is observed that the effective decomposition of organic dyes is due to graphene aerogel (GA) and cadmium‐doped TiO2 nanoparticles. The results show that for 20 ppm solutions of Orange G, Acid Blue 161, and Brilliant Green, dyes are removed at approximately 81.075%, 84.15%, and 95.18% in 120 min. The morphology and elemental analysis of the synthesized composites are determined using SEM‐EDS, crystal structure analysis by XRD, chemical bond analysis by FTIR, optical properties by UV‐Vis‐NIR spectrophotometry, and thermal resistance by TGA analysis.

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Section: Doi: 101002/gch2202300271mentioning

confidence: 99%

Degradation of Orange G, Acid Blue 161, and Brillant Green Dyes Using UV Light‐Activated GA–TiO₂–Cd Composite

Tekin,

Birhan,

Tekin

et al. 2024

Global Challenges

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“…In particular, TiO 2 can be doped with metal (such as Co, Nb, Mn, Cu, and Ni) or non-metal dopants (such as C, F, and N) [155]. Studies have shown that metal doping can enhance the gas response and selectivity of TiO 2 by altering phase transformation, surface potentials, chemical activity, amount of adsorbed oxygen ions, and regulating charge carrier concentration [156,157].…”

Section: Dopingmentioning

confidence: 99%

Recent Advancements in TiO2 Nanostructures: Sustainable Synthesis and Gas Sensing

2023

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The search for sustainable technology-driven advancements in material synthesis is a new norm, which ensures a low impact on the environment, production cost, and workers’ health. In this context, non-toxic, non-hazardous, and low-cost materials and their synthesis methods are integrated to compete with existing physical and chemical methods. From this perspective, titanium oxide (TiO2) is one of the fascinating materials because of its non-toxicity, biocompatibility, and potential of growing by sustainable methods. Accordingly, TiO2 is extensively used in gas-sensing devices. Yet, many TiO2 nanostructures are still synthesized with a lack of mindfulness of environmental impact and sustainable methods, which results in a serious burden on practical commercialization. This review provides a general outline of the advantages and disadvantages of conventional and sustainable methods of TiO2 preparation. Additionally, a detailed discussion on sustainable growth methods for green synthesis is included. Furthermore, gas-sensing applications and approaches to improve the key functionality of sensors, including response time, recovery time, repeatability, and stability, are discussed in detail in the latter parts of the review. At the end, a concluding discussion is included to provide guidelines for the selection of sustainable synthesis methods and techniques to improve the gas-sensing properties of TiO2.

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“…For many years, TiO 2 has been widely used in solar cells, in photocatalysis, and in lithiumion batteries. [22][23][24][25][26] There are many different crystalline forms of TiO 2 (such as anatase, rutile, and bronze), but anatase and rutile TiO 2 are considered to be the most promising materials for solar cells and photocatalysts. More and more studies have found that when TiO 2 is used as rechargeable battery electrode material, it has better electrochemical cycle stability because of its small volume expansion and stable structure.…”

Section: Introductionmentioning

confidence: 99%

Improvements in the Magnesium Ion Transport Properties of Graphene/CNT‐Wrapped TiO₂‐B Nanoflowers by Nickel Doping

Wang,

Zhang,

Liu

et al. 2023

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Magnesium‐ion batteries are widely studied for its environmentally friendly, low‐cost, and high volumetric energy density. In this work, the solvothermal method is used to prepare titanium dioxide bronze (TiO2‐B) nanoflowers with different nickel (Ni) doping concentrations for use in magnesium ion batteries as cathode materials. As Ni doping enhances the electrical conductivity of TiO2‐B and promotes magnesium ion diffusion, the band gap of TiO2‐B host material can be significantly reduced, and as Ni content increases, diffusion contributes more to capacity. According to the electrochemical test, TiO2‐B exhibits excellent electrochemical performance when the Ni element doping content is 2 at% and it is coated with reduced graphene oxide@carbon nanotube (RGO@CNT). At a current density of 100 mA g−1, NT‐2/RGO@CNT discharge specific capacity is as high as 167.5 mAh g−1, which is 2.36 times of the specific discharge capacity of pure TiO2‐B. It is a very valuable research material for magnesium ion battery cathode materials.

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Metal‐Doped Titanium Dioxide for Environmental Remediation, Hydrogen Evolution and Sensing: A Review

Cited by 9 publications

References 95 publications

Degradation of Orange G, Acid Blue 161, and Brillant Green Dyes Using UV Light‐Activated GA–TiO₂–Cd Composite

Degradation of Orange G, Acid Blue 161, and Brillant Green Dyes Using UV Light‐Activated GA–TiO₂–Cd Composite

Recent Advancements in TiO2 Nanostructures: Sustainable Synthesis and Gas Sensing

Improvements in the Magnesium Ion Transport Properties of Graphene/CNT‐Wrapped TiO₂‐B Nanoflowers by Nickel Doping

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Metal‐Doped Titanium Dioxide for Environmental Remediation, Hydrogen Evolution and Sensing: A Review

Cited by 9 publications

References 95 publications

Degradation of Orange G, Acid Blue 161, and Brillant Green Dyes Using UV Light‐Activated GA–TiO2–Cd Composite

Degradation of Orange G, Acid Blue 161, and Brillant Green Dyes Using UV Light‐Activated GA–TiO2–Cd Composite

Recent Advancements in TiO2 Nanostructures: Sustainable Synthesis and Gas Sensing

Improvements in the Magnesium Ion Transport Properties of Graphene/CNT‐Wrapped TiO2‐B Nanoflowers by Nickel Doping

Contact Info

Product

Resources

About

Degradation of Orange G, Acid Blue 161, and Brillant Green Dyes Using UV Light‐Activated GA–TiO₂–Cd Composite

Degradation of Orange G, Acid Blue 161, and Brillant Green Dyes Using UV Light‐Activated GA–TiO₂–Cd Composite

Improvements in the Magnesium Ion Transport Properties of Graphene/CNT‐Wrapped TiO₂‐B Nanoflowers by Nickel Doping