Assembling ZIF-67@Cd0.5Zn0.5S nanocomposites with an enhanced photocatalytic activity

Khudhair, Entisar M.; Khudhair, Widyan N.; Ammar, Saad H.; Mahdi, Ahmed S.

doi:10.1016/j.inoche.2022.109639

Cited by 17 publications

(5 citation statements)

References 40 publications

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“…In a beaker with 20 mL of deionized water, combine 0.18 g (1.0 mmol) of CdCl2-2.5H 2 O, 0.2915 g (1.0 mmol) of zinc acetate, and 0.15 g (2.0 mmol) of TAA [33] .Stir the mixture for one hour, then move it to a hydrothermal reactor and maintain it at 160°C for 12 hours before allowing it to cool to room temperature. After being repeatedly cleaned with deionized water and anhydrous ethanol, the precipitate Cd0.5Zn0.5S was dried at 70°C for 12 hours, and then it was put away [ 34 35] .…”

Section: Preparation Of Cdznsmentioning

confidence: 99%

Synthesis, characterisation, and effective photocatalytic degradation applications in organic dye molecules using CdZnS-loaded UIO-66 composites

Jiang,

Zhang,

Hong

et al. 2024

Preprint

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One of the primary sources of industrial wastewater is dye wastewater, which is challenging for conventional water treatment methods to properly degrade because of its complex composition, high chromaticity, difficulty being biochemically destroyed, etc. The utilization of photocatalysts in conjunction with light energy, or photocatalytic technology, is thought to be a sustainable approach to treating dye wastewater due to its many benefits, including high degradation efficiency, rapid reaction times, and the absence of secondary contamination. We chose to employ CdZnS as a carrier in this research, together with composite UIO-66. The degradation of the dye methylene blue was carried out using the composite CdZnS@UIO-66 as a photocatalyst, and the results were compared to those of pure CdZnS and pure UIO-66. The findings demonstrated that CdZnS@UIO-66 had a noticeably greater photocatalytic efficiency than the other two. Up to 99.87% of the methylene blue in 50 mL of aqueous solution was degraded in the experimental reaction with a catalyst dosage of 0.03 g, pH of 7, and an initial concentration of 30 mg/L of methylene blue aqueous solution when exposed to visible light for 90 minutes. This indicates excellent photocatalytic efficacy in the visible range, the formation of an interfacial electron transfer phenomenon within the heterojunction, and the use of UIO-66 as an electron acceptor to further enhanced photocatalytic effect is caused by the development of interfacial electron transfer phenomena within the heterojunction and UIO-66 as an electron acceptor, which further promotes the internal photogenerated electron-hole separation.

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Section: Preparation Of Cdznsmentioning

confidence: 99%

Synthesis, characterisation, and effective photocatalytic degradation applications in organic dye molecules using CdZnS-loaded UIO-66 composites

Jiang,

Zhang,

Hong

et al. 2024

Preprint

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“…In addition, in order to improve the efficiency of mass transfer, it is necessary to construct CoMoOS as porous structures. ZIF-67 molecular sieve, a MOFs material, boasts uniform pores, diverse shapes, and a vast surface area. − When ZIF-67 is used to construct CoMoOS, it can not only serve as a Co source but also act as an active site carrier. The rich porous structure of CoMoOS derived from ZIF-67 can also improve mass transfer efficiency also.…”

Section: Introductionmentioning

confidence: 99%

ZnCdS/CoMoOS Photocatalyst with High Electron Flux at the Ternary Interface Enhances H₂ production

Liu,

Zhang,

et al. 2024

ACS Appl. Nano Mater.

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In this paper, CoMoO x −CoMoS x −CoS x (CoMoOS) were employed as cocatalysts for the first time to fabricate a ZnCdS/ CoMoOS photocatalyst featuring a high electron flux ternary interface. The photocatalytic hydrogen production rate reached 52.31 mmol h −1 g −1 , which is 6.4 times that of ZnCdS (8.147 mmol h −1 g −1 ). Furthermore, owing to the presence of the CoMoOS/ZnCdS ternary interface, ZnCdS is capable of transferring electrons to CoMoOS through this interface, thus accelerating the separation of electron− hole pairs. The close contact at the ternary interface can significantly shorten the transmission path between electronically excited photosensitive sites (ZnCdS) and the water splitting active site (CoMoOS). From the calculation of DFT, CoS x and CoMoS x exhibit the optimal Gibbs free energy (−0.14 eV) and water adsorption energy (−10.30 eV), respectively, thereby deducing that CoMoO x , CoMoS x , and CoS x serve as e − auxiliary shunt, H 2 O adsorption, and H* combination functions, respectively.

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“…Maize (Zea mays L.) is an important cereal crop for its various nutritional and industrial uses (9,10). It is grown in Iraq two seasons : during fall season, which was dominant and covered for most of the areas allocated for this crop (11,12), in addition to the appropriate climatic conditions for it, and spring season, which is still did not prevalent, and is cultivated in very close areas due to its low grain yield compared to the yield of the fall (19). The production of maize in the spring and fall seasons in Iraq at 2021 season was 374,400 tons, spring maize production was estimated about 0.3 tons, or 0.1% of the total production of the spring and fall maize, while the production of the fall maize was estimated at 374,397 tons, or 99.9% from the total production (23) In Iraq varieties were differ in grain yield and its components due to their different response to temperatures at the flowering stages, fertilization stages and accumulation of dry matter during the period of grain filling, as well as the difference in their efficiency in transferring the products of the photosynthesis process from the source to the sink (8,13).…”

Section: Introductionmentioning

confidence: 99%

Reducing the Heat Stress on Maize During Spring Season by Using Some Bio Stimulants

Athraa.A .Al- Omairi,

I. H. H. Al-Hilfy

2024

Iraqi J. Agric. Sci.

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This study was aimed to investigate the effect of bio stimulators )chitosan and Appetizer( in reducing the heat stress on maize during spring season. Field experiment was conducted at the experimental farm, Coll. of Agricultural Engineering Sciences, University of Baghdad, Al-Jadiriya, Iraq, during the seasons of 2020 and 2021. The experiment was laid out in Randomized Complete Blocks Design within split plot arrangement, with three replicates. Where the main plots included two cultivars of maize )Baghdad3 and cultivar 5018(, while the sub plots included five levels of chitosan and Appetizer:(soaking seeds with Chitosan at a concentration of 100 and 500 mg L-1, and spraying with Chitosan 100 mg L-1, and spraying Appetizer in two and three stages in addition to the two control treatments, which are soaking seeds with distilled water and dry seeds. The results showed that the cultivar 5018 was superiored in grain yield 11.82 and 11.08 Mg ha-1 in both seasons. The treatment of spraying Chitosan gave the highest grain yield 13.26 and 12.94 Mg ha-1, spraying the Appetizer in two stages gave 13.32 and 12.54 Mg ha-1 , and spraying Appetizer in three stages gave 13.70 and 12.97 Mg ha-1 for both seasons. The interaction was significant in most of the studied traits. So we recommend the use of Chitosan spray at a concentration of 100 mg L-1 and Appetizer spray at a concentration of 1.25 ml L-1 in two or three stages to reduce the effect of heat stress on maize planted in the spring season to increase grain yield.

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Assembling ZIF-67@Cd0.5Zn0.5S nanocomposites with an enhanced photocatalytic activity

Cited by 17 publications

References 40 publications

Synthesis, characterisation, and effective photocatalytic degradation applications in organic dye molecules using CdZnS-loaded UIO-66 composites

Synthesis, characterisation, and effective photocatalytic degradation applications in organic dye molecules using CdZnS-loaded UIO-66 composites

ZnCdS/CoMoOS Photocatalyst with High Electron Flux at the Ternary Interface Enhances H₂ production

Reducing the Heat Stress on Maize During Spring Season by Using Some Bio Stimulants

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Assembling ZIF-67@Cd0.5Zn0.5S nanocomposites with an enhanced photocatalytic activity

Cited by 17 publications

References 40 publications

Synthesis, characterisation, and effective photocatalytic degradation applications in organic dye molecules using CdZnS-loaded UIO-66 composites

Synthesis, characterisation, and effective photocatalytic degradation applications in organic dye molecules using CdZnS-loaded UIO-66 composites

ZnCdS/CoMoOS Photocatalyst with High Electron Flux at the Ternary Interface Enhances H2 production

Reducing the Heat Stress on Maize During Spring Season by Using Some Bio Stimulants

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ZnCdS/CoMoOS Photocatalyst with High Electron Flux at the Ternary Interface Enhances H₂ production