Bovine serum albumin assisted synthesis of Ag/Ag2O/ZnO photocatalyst with enhanced photocatalytic activity under visible light

Ding, Wenqiang; Zhao, Lidan; Yan, Hongguang; Wang, Xin; Liu, Xiaoping; Zhang, Xiangyu; Huang, Xiaobo; Hang, Ruiqiang; Wang, Yueyue; Yao, Xiaohong; Tang, Bin

doi:10.1016/j.colsurfa.2019.02.015

Cited by 57 publications

(12 citation statements)

References 51 publications

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“…Up to now, numerous strategies and pathways have been adopted to search for economical, stable and wide light-responsive candidates for H 2 evolution. Several materials such as titanium oxide (TiO 2 ) [4], cerium oxide (CeO 2 ) [5], zinc sulfide (ZnS) [6], graphitic carbon nitride [7], zinc oxide (ZnO) [8], cadmium sulfide (CdS) [9], etc., have been extensively explored for their performance and viability in this emerging field. Among semiconductors, ZnO reveals diversified morphologies and an appropriate optical band gap (~3.37 eV) to effectively harvest the sunlight [10].…”

Section: Introductionmentioning

confidence: 99%

Construction of 0D/2D Schottky Heterojunctions of ZnO and Ti3C2 Nanosheets with the Enriched Transfer of Interfacial Charges for Photocatalytic Hydrogen Evolution

et al. 2022

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The development of cost-effective co-catalysts of high photocatalytic activity and recyclability is still a challenge in the energy transformation domain. In this study, 0D/2D Schottky heterojunctions, consisting of 0D ZnO and 2D Ti3C2, were successfully synthesized by the electrostatic self-assembling of ZnO nanoparticles on Ti3C2 nanosheets. In constructing these heterojunctions, Ti3C2 nanosheets acted as a co-catalyst for enhancing the transfer of excitons and their separation to support the photocatalytic response of ZnO. The as-prepared ZnO/Ti3C2 composites demonstrate an abbreviated charge transit channel, a huge interfacial contact area and the interfacial electrons’ transport potential. The extended optical response and large reactive area of the ZnO/Ti3C2 composite promoted the formation of excitons and reactive sites on the photocatalyst’s surface. The ZnO/Ti3C2 Schottky heterojunction showed significantly high photocatalytic activity for hydrogen production from a water–ethanol solution under the light illumination in the visible region. The hydrogen evolution overoptimized the ZnO/Ti3C2 composition with 30 wt.% of Ti3C2, which was eight times higher than the pristine ZnO. These findings can be helpful in developing 0D/2D heterojunction systems for photocatalytic applications by utilizing Ti3C2 as a low-cost co-catalyst.

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Section: Introductionmentioning

confidence: 99%

Construction of 0D/2D Schottky Heterojunctions of ZnO and Ti3C2 Nanosheets with the Enriched Transfer of Interfacial Charges for Photocatalytic Hydrogen Evolution

et al. 2022

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“…Also, we noticed that degradation of CIP was decreased from 100% after 40 min illumination time to 90% after 60 min illumination time by changing the dose of photocatalyst from 2.0 to 2.5 g/L, respectively. The reduction of degradation of CIP is assigned to retardation of light to the surface of photocatalyst using a high dose of photocatalyst and subsequently, reduced active sites and reduction of degradation of CIP (Ding et al 2019).…”

Section: Properties Of Optoelectronic and Opticalmentioning

confidence: 99%

“…Doping of ZnO with non-metals will reduce its bandgap energy thus charge separation will be enhanced (Ferdosi et al 2019;Praveena et al 2017;Yousefi and Hashemi 2019). Moreover, Doping of ZnO with noble metals leads to pronounced improvement in photocatalytic activity through shifting absorption towards the visible region (Liu et al 2019a,b;Ding et al 2019;Oskoei et al 2016;Salari 2019;Yu et al 2019).…”

mentioning

confidence: 99%

Synthesis and characterizations of ZnMn2O4-ZnO nanocomposite photocatalyst for enlarged photocatalytic oxidation of ciprofloxacin using visible light irradiation

Alhaddad

Mohamed

2020

Appl Nanosci

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The photocatalytic degradation of Ciprofloxacin (CIP) grows into a claim in terms of environmental remediation. Herein, we prepared ZnMn 2 O 4 -ZnO nanocomposite, which is a visible-light-responsive using the one-pot method. Adding 7% of ZnMn 2 O 4 to ZnO leads to a contraction of the energy band gap of zinc oxide from 3.3 to 2.3 eV. 7% of ZnMn 2 O 4 -ZnO nanocomposite can degrade CIP completely within 30 min at 1.5 g/L using visible light illumination. The improvement of zinc oxide photocatalytic activity by coupling of ZnMn 2 O 4 is due to avoid photogenerated charge carriers recombination and enlargement of visible light absorption. The study initiates the gate for the broad purpose of photocatalysts nanocomposite as a fiction useful material for CIP remediation using an exposure of visible light.

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“…Furthermore, as confirmed by XRD patterns, the presence of Ag2O could cause photocatalysts to suffer from poor activities. It is well documented that the conduction band of Ag2O lies below (more positive than) the standard O2/•O2 − redox potential, so that the electrons in the Ag2O conduction band are lack thermodynamic requirements to reduce the adsorbed O2 on the Ag2O surface [52][53][54][55]. With the same line of arguments, holes in the Ag2O valence band are thermodynamically incapable of oxidizing the adsorbed H2O on the Ag2O surface because •OH/H2O is higher (more negative) than the Ag2O valence band.…”

Section: Microplastic Degradationmentioning

confidence: 99%

Photocatalytic Degradation of Polyethylene Microplastics and Disinfection of E. coli in Water over Fe- and Ag-Modified TiO2 Nanotubes

Yuwendi

Ibadurrohman

Setiadi

et al. 2022

Bull. Chem. React. Eng. Catal.

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In this study, Fe- and Ag-modified TiO2 nanotubes were synthesized via an anodization method as photocatalysts for degradation of polyethylene microplastics and disinfection of Escherichia coli (E. coli). The anodization voltage, as well as the Fe3+ or Ag+ concentrations on TiO2 nanotubes were evaluated and correlated to their corresponding photocatalytic properties. TiO2 nanotubes were firstly synthesized by anodization of Ti plates in a glycerol-based electrolyte, followed by incorporation of either Fe or Ag via a Successive Ionic Layer Adsorption and Reaction (SILAR) method with Fe(NO3)3 and AgNO3 as Fe and Ag precursors, respectively. UV-Vis DRS shows that the addition of Fe or Ag on TiO2 nanotubes causes a redshift in the absorption spectra. The X-ray diffractograms indicate that, in the case of Fe-modified samples, Fe3+ was successfully incorporated into TiO2 lattice, while Ag scatters around the surface of the tubes as Ag and Ag2O nanoparticles. A microplastic degradation test was carried out for 90 mins inside a photoreactor with UVC illumination. TiO2 nanotubes that are anodized with a voltage of 30 V exhibit the best degradation results with 17.33% microplastic weight loss in 90 mins. Among the modified TiO2 nanotubes, 0.03 M Ag-TiO2 was the only one that surpassed the unmodified TiO2 in terms of microplastic degradation in the water, offering up to 18% microplastic weight loss in 90 min. In terms of E. coli disinfection, 0.03M Ag-TiO2 exhibit better performance than its unmodified counterpart, revealing 99.999% bactericidal activities in 10 mins. Copyright © 2022 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Bovine serum albumin assisted synthesis of Ag/Ag2O/ZnO photocatalyst with enhanced photocatalytic activity under visible light

Cited by 57 publications

References 51 publications

Construction of 0D/2D Schottky Heterojunctions of ZnO and Ti3C2 Nanosheets with the Enriched Transfer of Interfacial Charges for Photocatalytic Hydrogen Evolution

Construction of 0D/2D Schottky Heterojunctions of ZnO and Ti3C2 Nanosheets with the Enriched Transfer of Interfacial Charges for Photocatalytic Hydrogen Evolution

Synthesis and characterizations of ZnMn2O4-ZnO nanocomposite photocatalyst for enlarged photocatalytic oxidation of ciprofloxacin using visible light irradiation

Photocatalytic Degradation of Polyethylene Microplastics and Disinfection of E. coli in Water over Fe- and Ag-Modified TiO2 Nanotubes

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