The ZnO–Au-Titanium oxide nanotubes (TiNTs) composites photocatalysts for CO2 reduction application

Lai, Yung‐Cheng; Cheng, Cheng-Tso; Liou, Jhin-Ling; Jehng, Jih‐Mirn; Dai, Yong‐Ming

doi:10.1016/j.ceramint.2021.07.177

Cited by 13 publications

(3 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These shortcomings have been obviated by incorporating noble metal nanoparticles, facilitating strong visible light absorption, and charge separation. [39,40,[42][43][44] Although most of the previous reports of such composites did not acknowledge plasmon resonance of the metal part, they eventually served as early precursors for developing plasmonic photocatalysts. As such, the phenomenon of LSPR in noble metal nanoparticles allows them to be employed as photocatalysts for CO 2 reduction individually and exhibit excellent results.…”

Section: Plasmon-driven Photocatalytic Co 2 Reductionmentioning

confidence: 99%

“…In this regard, with the promising merits of sunlight-driven catalysis as mentioned above, catalyst/adsorbate systems can be subjected to light excitation for which, conventionally, a wide range of semiconductors as photo catalysts, such as, TiO 2 , ZnO, CdSe, and others, have been evaluated. [42][43][44] However, these materials suffer a major setback in rapid recombination of charge carriers, limited visible light absorption, and competitive H 2 generation. These shortcomings have been obviated by incorporating noble metal nanoparticles, facilitating strong visible light absorption, and charge separation.…”

Section: Plasmon-driven Photocatalytic Co 2 Reductionmentioning

confidence: 99%

See 1 more Smart Citation

Recent Progress and Challenges in Plasmon‐Mediated Reduction of CO₂ to Chemicals and Fuels

Mittal

Ahlawat

Rao

2022

Adv Materials Inter

View full text Add to dashboard Cite

Meanwhile, global energy demands also continue to rise. In such a situation, inspiration from nature's process of photosynthesis can be taken to target both the challenges, and artificial systems can be employed that recycle atmospheric CO 2 into valuable hydrocarbon fuels. [2,3] At the outset, artificial photosynthesis seems a straightforward and sustainable approach. However, conversion of CO 2 into value-added chemicals such as, carbon monoxide (CO), formic acid (HCOOH), methanol (CH 3 OH), methane (CH 4 ), and other C 2+ products is an endergonic process, involving a significant positive change in Gibbs free energy. [4] Also, kinetics and product selectivity are major challenges to tackle. While the energy barriers might be surpassed by thermal or electrical energy input to catalysts, economic feasibility, product yields, and selectivity are complex factors. A better strategy is to utilize solar energy to drive the thermodynamically uphill reactions and produce chemical fuels in a renewable and sustainable way. Moreover, the light excitation of catalysts allows more controlled CO 2 reduction. Nanotechnology in this scenario provides myriad opportunities to develop photocatalysts that produce electron-hole pairs upon light illumination and carry out the required chemical transformation. Semiconductor materials, mainly titania (TiO 2 ), have dominated the photocatalysis field but pose constraints regarding limited visible light absorption (while visible light constitutes ≈46% of the sunlight) and other factors. [5][6][7][8] As such, the quest to develop an efficient alternative has recently led to the emergence of photocatalysts consisting of plasmonic metal nanoparticles, mainly Au, Ag, Cu, and Al, that can harvest visible light with high optical cross-section and serve as a platform for surface catalyzed reactions. [9][10][11][12][13] Plasmonic nanostructures exhibit strong interaction with the incident electromagnetic radiation and trigger localized surface plasmon resonance (LSPR), leading to enhancement of local electric fields and subsequent generation of energetic charge carriers and heat that can be exploited in tremendous applications of chemical transformation. [14] The energetic charge carriers are generated with a non-equilibrium distribution, and their potential energy depends upon the electronic band structure of the nanomaterial. This regulates their overall contribution to the chemical reaction's free energy and the extent of activation of the reactants. Recent theoretical and experimentalThe realization of the strong interaction of plasmonic nanostructures with electromagnetic radiation, subdiffraction-limit field localization, and unusually high field enhancement enables immense opportunities to harness visible light in the field of photocatalysis. Plasmon-induced energetic charge carriers allow the metal nanostructures to catalyze surface reactions with selective pathways that are rather a holy grail of thermal catalysis. An intriguing application of plasmonic photocatalysis includes sequestr...

show abstract

Section: Plasmon-driven Photocatalytic Co 2 Reductionmentioning

confidence: 99%

Section: Plasmon-driven Photocatalytic Co 2 Reductionmentioning

confidence: 99%

Recent Progress and Challenges in Plasmon‐Mediated Reduction of CO₂ to Chemicals and Fuels

Mittal

Ahlawat

Rao

2022

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

“…The structure of ZnO NPs is well retained with the addition of CuO and Au nanoparticles, as evidenced by the Au-CuO-ZnO nanocomposite's XRD pattern. In addition, a single weak peak for Au at 38.510 corresponding to (111) and a faint peak for CuO at 35.520 corresponding to (002) are visible, indicating that demonstrating that the produced ternary Au-CuO-ZnO nanocomposites have excellent crystalline structure The crystallite size of produced nanomaterials was calculated using the Debye-Scherer equation[17], and the results are reported in Table (1):…”

mentioning

confidence: 99%

Biosynthesis of Au–CuO–ZnO Nanocomposite using leaf extract and activity as anti- bacterial, anti-cancer, degradation of CB dye

Ali¹,

Muslim²,

Ghali

et al. 2023

Preprint

View full text Add to dashboard Cite

The photocatalytic degradation of Cibacron Brilliant Yellow 3G-P (CB) dye in aqueous solution using ZnO, CuO, Au–ZnO, Cu-ZnO, and Au–CuO–ZnO nanomaterials produced using Acacia dealbata leaf extract is described in this study. X-ray diffraction (XRD), Field emission- scanning electron microscopy (FE-SEM), transmission electron microscopic studies (TEM), atomic force microscopy (AFM), element analysis EDX, and diffuse reflectance UV-visible spectroscopy were used to characterize the structural, chemical, morphological, topological, and optical properties of as- synthesized nanomaterials, The characterization research validated the successful synthesis route and demonstrated the effective dispersion of Au and CuO over the ZnO surface. Furthermore, the XRD patterns were discovered to conform to the hexagonal structure of ZnO wurtzite. In addition, A hybrid Au-CuO-ZnO nanocomposite's compositional characterization was explored using EDX-mapping, which proved the efficient distribution of Zn, Cu, O, and Au in the hybrid composite. The roughness of the produced nanostructures was confirmed by topological analysis. With the doping of Au and CuO NPs, the absorption threshold edge of ZnO was moved from the UV to the visible area, according to the optical investigation. Under visible light irradiation, photocatalytic (CB) dye degradation studies demonstrated that the Au–CuO–ZnO nanocomposite is more efficient than pure ZnO at degrading the dye. After 50 minutes After 45 minutes of illumination under ideal circumstances of 1.0 g/L photocatalyst, 10 ppm (CB) dye, and pH 10, photodegradation efficiency of up to 99 percent was achieved. Photogenerated holes and hydroxyl radicals are responsible for the increased photodegradation efficiency of Au–CuO–ZnO, according to the reactive species investigation. The Au-CuO-ZnO nanocomposite displayed high potential stability and recyclability, with 78.6 percent photoactivity remaining after five cycles, according to the recycling data. and study the effect of Au-CuO-ZnO nanocomposite on bacteria of coli Escherichia and Staphylococcus aureus, where these bacteria were used as a representative of the cream negative bacteria and the positive bacteria respectively. The results showed the rate of success (Au-CuO-ZnO nanocomposite) in eliminating and destroying these bacteria and this is possible by using the nanoscale solution to sterilize and eliminate bacteria. By assessing cytotoxicity, it was demonstrated that Au-CuO-ZnO nanocomposite can both kill and stop the proliferation of cancer cells. When compared to cancer cells not treated with the chemical, the Au-CuO-ZnO nanocomposite shown very deadly efficiency against cancer cells by preventing their development and reproduction. One of the most crucial techniques for identifying inhibition in living cells is the procedure of determining the toxicity of the synthesized chemicals. Au-CuO-ZnO nanocomposite had a biological activity with an IC50 of 35.33 g/ml.

show abstract

In‐situ Integrated Plasmonic TiN@ZIF‐67 Composites for the Photoreduction of CO₂into Solar Fuels: Insights into their Plasmonic Interaction and Mechanism

et al. 2022

View full text Add to dashboard Cite

Plasmonic materials (PMs) essentially equip the photocatalysts to harvest energy from visible light photons. Interestingly, these PMs also support the photocatalysts, which has been realized upon the advent of non‐noble metals‐based PMs. In this context, this study reveals an interesting feature of TiN@ZIF‐67 plasmonic composite photocatalysts towards CO2 reduction under solar irradiation. The composite is prepared via an in‐situ and direct integration process, where the plasmonic TiN nanoparticles are surface‐modified using 3‐aminopropyl‐triethoxysilane/H‐Imidazole‐2‐carbaldehyde in the former and polyvinylpyrrolidone in the latter process to construct the 1H2ImCHO‐TiN@ZIF‐67 and TiN/PVP@ZIF‐67 composites, respectively. The structural and functional properties in these composites are confirmed using XRD and FTIR spectroscopy techniques. It is observed from the TEM images that the in‐situ integration leads to deep‐surface attachments of TiN on ZIF‐67, which exerted a major impact in the CO2 photoreduction. The 1H2ImCHO‐TiN@ZIF‐67 shows the simultaneous production of ∼0.11 and 0.15 mmol g−1 h−1 of methanol and ethanol, respectively; whereas, the TiN/PVP@ZIF‐67 produces only ∼0.31 mmol g−1 h−1 of methanol. The obtained results demonstrate that developed in‐situ synthetic approach is promising for the synthesis of efficient plasmonic photocatalysts and the product formation during CO2 photoreduction can be dependent on how PMs are integrated with the host photocatalysts.

show abstract

The ZnO–Au-Titanium oxide nanotubes (TiNTs) composites photocatalysts for CO2 reduction application

Cited by 13 publications

References 43 publications

Recent Progress and Challenges in Plasmon‐Mediated Reduction of CO₂ to Chemicals and Fuels

Recent Progress and Challenges in Plasmon‐Mediated Reduction of CO₂ to Chemicals and Fuels

Biosynthesis of Au–CuO–ZnO Nanocomposite using leaf extract and activity as anti- bacterial, anti-cancer, degradation of CB dye

In‐situ Integrated Plasmonic TiN@ZIF‐67 Composites for the Photoreduction of CO₂into Solar Fuels: Insights into their Plasmonic Interaction and Mechanism

Contact Info

Product

Resources

About

The ZnO–Au-Titanium oxide nanotubes (TiNTs) composites photocatalysts for CO2 reduction application

Cited by 13 publications

References 43 publications

Recent Progress and Challenges in Plasmon‐Mediated Reduction of CO2 to Chemicals and Fuels

Recent Progress and Challenges in Plasmon‐Mediated Reduction of CO2 to Chemicals and Fuels

Biosynthesis of Au–CuO–ZnO Nanocomposite using leaf extract and activity as anti- bacterial, anti-cancer, degradation of CB dye

In‐situ Integrated Plasmonic TiN@ZIF‐67 Composites for the Photoreduction of CO2into Solar Fuels: Insights into their Plasmonic Interaction and Mechanism

Contact Info

Product

Resources

About

Recent Progress and Challenges in Plasmon‐Mediated Reduction of CO₂ to Chemicals and Fuels

Recent Progress and Challenges in Plasmon‐Mediated Reduction of CO₂ to Chemicals and Fuels

In‐situ Integrated Plasmonic TiN@ZIF‐67 Composites for the Photoreduction of CO₂into Solar Fuels: Insights into their Plasmonic Interaction and Mechanism