Hybrid ZnO/Ag3PO4 photocatalysts, with low and high phosphate molar percentages

Martín-Gómez, A.N.; Navı́o, J.A.; Jaramillo-Páez, C.; Sánchez‐Cid, Pablo; Hidalgo, M.C.

doi:10.1016/j.jphotochem.2019.112196

Cited by 22 publications

(8 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Compositional, structural, and spectroscopic analysis of the ZnO/Ag 3 PO 4 and ZnOmalachite composites showed the different properties of the photocatalysts. The results for ZnO/Ag 3 PO 4 have been previously reported [14]; therefore, the current study provides only an overview.…”

Section: Characterization Of the Zno-based Compositesmentioning

confidence: 84%

“…ZnO/Ag 3 PO 4 composites were prepared by following the procedure previously reported by J.A Navío et al [14]. The ZnO powders were briefly suspended under continuous stirring in a Na 3 PO 4 (Sigma-Aldrich, <96%) water solution.…”

Section: Zno/ag 3 Po 4 and Zno-malachite Preparationmentioning

confidence: 99%

“…The main objective of this study was to improve ZnO's photoactivity by modifying it with ZnO/Ag 3 PO 4 and ZnO-Cu 2 (OH) 2 CO 3 and evaluating the effects of these composites in real wastewater samples. Authors have reported that Ag 3 PO 4 can help ZnO improve its optical response in the visible region of the electromagnetic spectrum [13,14]. Likewise, it has also been reported that malachite (Cu 2 CO 3 (OH) 2 ) is an effective modifier of TiO 2 , leading to an improvement in the effectiveness of this semiconductor in photocatalytic hydrogen production [15].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

ZnO/Ag3PO4 and ZnO–Malachite as Effective Photocatalysts for the Removal of Enteropathogenic Bacteria, Dyestuffs, and Heavy Metals from Municipal and Industrial Wastewater

Murcia

Niño

Rojas

et al. 2021

Water

View full text Add to dashboard Cite

Different composites based on ZnO/Ag3PO4 and ZnO–malachite (Cu2(OH)2CO3) were synthesized in order to determine their effectiveness in the treatment of municipal and industrial wastewaters (mainly polluted by enteropathogenic bacteria, dyes, and heavy metals). The addition of Ag3PO4 and malachite did not significantly modify the physicochemical properties of ZnO; however, the optical properties of this oxide were modified as a result of its coupling with the modifiers. The modification of ZnO led to an improvement in its effectiveness in the treatment of municipal and industrial wastewater. In general, the amount of malachite or silver phosphate and the effluent to be treated were the determining factors in the effectiveness of the wastewater treatment. The highest degree of elimination of bacteria from municipal wastewater and discoloration of textile staining wastewater were achieved by using ZnO/Ag3PO4 (5%), but an increase in the phosphate content had a detrimental effect on the treatment. Likewise, the highest Fe and Cu photoreduction from coal mining wastewater was observed by using ZnO–malachite (2.5%) and ZnO/Ag3PO4 (10%), respectively. Some of the results of this work were presented at the fourth Congreso Colombiano de Procesos Avanzados de Oxidación (4CCPAOx).

show abstract

Section: Characterization Of the Zno-based Compositesmentioning

confidence: 84%

Section: Zno/ag 3 Po 4 and Zno-malachite Preparationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

ZnO/Ag3PO4 and ZnO–Malachite as Effective Photocatalysts for the Removal of Enteropathogenic Bacteria, Dyestuffs, and Heavy Metals from Municipal and Industrial Wastewater

Murcia

Niño

Rojas

et al. 2021

Water

View full text Add to dashboard Cite

show abstract

“…The free energy calculations of photo‐oxidation of water demonstrate more feasibility of (111) facets with −3.16 eV lower over potential than −1.65 eV and −1.28 eV for (100) and (110) surface, respectively [45] . Further studies have found that at pH=0 and change in internal energy ▵U=0, free energy is found to be exothermic for (111) facet, whereas it is endothermic for (100) and (110) facet surface [46] . Considering investigation on surface energy (Figure 6b) of facets, it is reported that (110) facet possesses 13.1 J ⋅ m −2 , whereas 100 facet has 12.1 J ⋅ m −2 surface energy, which typifies the presence of more reaction centres and oxygen vacancies on 110 facets [47] .…”

Section: Potential and Limitations Of Ag3po4 For Visible‐light‐driven Water Splittingmentioning

confidence: 91%

“…[45] Further studies have found that at pH = 0 and change in internal energy~U = 0, free energy is found to be exothermic for (111) facet, whereas it is endothermic for (100) and (110) facet surface. [46] Considering investigation on surface energy (Figure 6b) of facets, it is reported that (110) facet possesses 13.1 J • m À 2 , whereas 100 facet has 12.1 J • m À 2 surface energy, which typifies the presence of more reaction centres and oxygen vacancies on 110 facets. [47] Hence, studies prove that (111) facet has ten times higher oxidation potential than (100) and (110) facet surfaces.…”

Section: Potential Of Ag 3 Po 4 Photocatalystmentioning

confidence: 99%

A Strategy to Develop Efficient Ag₃PO₄‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges

et al. 2021

View full text Add to dashboard Cite

The escalating demands for energy sources and cumulative global environmental apprehensions have synergistically contributed to advancements in solar-driven technologies to utilize renewable energy resources. Photocatalytic water splitting, which is considered the most promising and sustainable process to harness solar energy for H 2 and O 2 evolution, is of particular interest. The photocatalytic performance of Ag 3 PO 4 is attributed to its visible-light active 2.43 eV band gap energy, tunable facet crystal structure, and high thermal stability. The suitable valence band (+ 2.85 V) potential of Ag 3 PO 4 is suggestive of its extraordinary oxidation capability. Herein, recent advances in preparation, characterization, and photocatalytic activity of silver orthophosphate (Ag 3 PO 4 ) based photocatalytic materials for water splitting are reviewed. The well-suited synthesis methods and rational engineering aspects for eliminating the significant limitations of self-photocorrosion and minimum absorption in the solar spectrum are highlighted. The achievement of Ag 3 PO 4 -based photocatalytic materials in water splitting is elaborately discussed, with the main focus on heterostructure formation, facet morphology, and plasmonic phenomena. Besides, some vital accomplishments in bandgap modulation and attaining the required surface energy to achieve an attractive yield of H 2 and O 2 in the region of visiblelight are also presented. Finally, a conclusive summary outlines this all-inclusive review with appropriate recommendations for photocatalytic water splitting to meeting a green approach shortly. We expect this comprehensive study could provide a guideline to tailor more efficient Ag 3 PO 4 -based photocatalytic materials with broad research prospects toward water splitting and other sustainable applications.

show abstract

Photodegradation of Emerging Pollutants Using Catalysts Supported in Organic and Inorganic Composite Materials

Paz

Serafini

Enzweiler

et al. 2021

Inorganic-Organic Composites for Water and Wastewater Treatment

View full text Add to dashboard Cite

Hybrid ZnO/Ag3PO4 photocatalysts, with low and high phosphate molar percentages

Cited by 22 publications

References 44 publications

ZnO/Ag3PO4 and ZnO–Malachite as Effective Photocatalysts for the Removal of Enteropathogenic Bacteria, Dyestuffs, and Heavy Metals from Municipal and Industrial Wastewater

ZnO/Ag3PO4 and ZnO–Malachite as Effective Photocatalysts for the Removal of Enteropathogenic Bacteria, Dyestuffs, and Heavy Metals from Municipal and Industrial Wastewater

A Strategy to Develop Efficient Ag₃PO₄‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges

Photodegradation of Emerging Pollutants Using Catalysts Supported in Organic and Inorganic Composite Materials

Contact Info

Product

Resources

About

Hybrid ZnO/Ag3PO4 photocatalysts, with low and high phosphate molar percentages

Cited by 22 publications

References 44 publications

ZnO/Ag3PO4 and ZnO–Malachite as Effective Photocatalysts for the Removal of Enteropathogenic Bacteria, Dyestuffs, and Heavy Metals from Municipal and Industrial Wastewater

ZnO/Ag3PO4 and ZnO–Malachite as Effective Photocatalysts for the Removal of Enteropathogenic Bacteria, Dyestuffs, and Heavy Metals from Municipal and Industrial Wastewater

A Strategy to Develop Efficient Ag3PO4‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges

Photodegradation of Emerging Pollutants Using Catalysts Supported in Organic and Inorganic Composite Materials

Contact Info

Product

Resources

About

A Strategy to Develop Efficient Ag₃PO₄‐based Photocatalytic Materials Toward Water Splitting: Perspectives and Challenges