Single platinum atoms anchored on holy carbon nitride for efficient photodegradation of sulfonylurea herbicide

Li, Xue; Wang, Shuaijun; Yu, Weisong; Fang, Song; Zhang, Ji‐Guang; Qiu, Jun; Kong, Fanyu; Duan, Xiaoguang

doi:10.1016/j.cej.2022.137426

Cited by 16 publications

(9 citation statements)

References 63 publications

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“…Moreover, several other works using XAS analysis confirmed metals atomically dispersed in carbon nitrides, in some cases accurately describing the chemical environment. We list here, in our opinion, the most relevant works, which confirmed metal single-atoms supported in carbon nitride-based materials using XAS: Fe, 43,294–299 Co, 47,289,290,300–307 Ti, 5 Zn, 32,308,309 Cr, 310 V, 311 Ni, 45,312–314 Mn, 27,315 Mo, 35,316,317 Cu, 14,288,293,318–323 Sb, 42 Pd, 18,256,260,282,324–327 Pt, 6,16,21,283,325,328–334 Ru, 25,305,335–337 Ir, 338 Au, 284,287,292 Ag, 2,307 Ga, 339 La, 340 Eu, 341 Er, 15 and Pr. 342…”

Section: Strategies and Techniques For Single-atom Characterizationmentioning

confidence: 92%

“…Indeed, annealing temperature appears to be crucial for the transition from single-atoms to nanoparticle regimes, as higher temperatures promote atom migration. 6,363 Only in a few instances, no pyrolysis at all was carried out. 292,374–376 The atmosphere of the thermal process also may play a role.…”

Section: Synthesis Of Sacs Based On Carbon Nitride Materialsmentioning

confidence: 99%

“…These results were also reproduced with minor losses in degradation activity using river water as a solvent. 6 Wu et al reported an exceptional result regarding the degradation of hexabromocyclododecane (HBCD), a flame retardant of polystyrene foams, which is highly toxic for both humans and ecosystems and is considered a POP. The Pd/HR–g-C 3 N 4 catalyst managed to degrade 100% of HBCD, while debromination efficiency was calculated to be around 92.6% under a relatively short period of time (60 min).…”

Section: Catalytic Applicationsmentioning

confidence: 99%

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Carbon nitride based materials: more than just a support for single-atom catalysis

et al. 2023

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Section: Strategies and Techniques For Single-atom Characterizationmentioning

confidence: 92%

Section: Synthesis Of Sacs Based On Carbon Nitride Materialsmentioning

confidence: 99%

Section: Catalytic Applicationsmentioning

confidence: 99%

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Carbon nitride based materials: more than just a support for single-atom catalysis

et al. 2023

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“…Liu et al used a simple wet impregnation method to anchor Pt SAs on HCNNS for the photodegradation of SUH. [ 200 ] PtSA‐HCNNS had Pt‐N4 coordination, which facilitated oxygen absorption and the generation of active factors (*OH and O 2 − ). Under the light, PtSA‐HCNNS could simultaneously remove five commonly used sulfonylurea herbicides and reduce their toxicity to soybean seedlings.…”

Section: Application Of Single‐atom Photocatalysts In Energy Conversi...mentioning

confidence: 99%

“…Liu et al used a simple wet impregnation method to anchor Pt SAs on HCNNS for the photodegradation of SUH. [200] PtSA-HCNNS had Pt-N4 coordination, which facilitated oxygen absorption and the generation of active factors (*OH and O 2 − ).…”

Section: Water Pollutant Degradationmentioning

confidence: 99%

Recent Progress of Single‐Atom Photocatalysts Applied in Energy Conversion and Environmental Protection

Pan

Zhang

et al. 2023

Small

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Photocatalysis driven by solar energy is a feasible strategy to alleviate energy crises and environmental problems. In recent years, significant progress has been made in developing advanced photocatalysts for efficient solar‐to‐chemical energy conversion. Single‐atom catalysts have the advantages of highly dispersed active sites, maximum atomic utilization, unique coordination environment, and electronic structure, which have become a research hotspot in heterogeneous photocatalysis. This paper introduces the potential supports, preparation, and characterization methods of single‐atom photocatalysts in detail. Subsequently, the fascinating effects of single‐atom photocatalysts on three critical steps of photocatalysis (the absorption of incident light to produce electron‐hole pairs, carrier separation and migration, and interface reactions) are analyzed. At the same time, the applications of single‐atom photocatalysts in energy conversion and environmental protection (CO2 reduction, water splitting, N2 fixation, organic macromolecule reforming, air pollutant removal, and water pollutant degradation) are systematically summarized. Finally, the opportunities and challenges of single‐atom catalysts in heterogeneous photocatalysis are discussed. It is hoped that this work can provide insights into the design, synthesis, and application of single‐atom photocatalysts and promote the development of high‐performance photocatalytic systems.

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Atomic Pt‐N₄ Sites in Porous N‐Doped Nanocarbons for Enhanced On‐Site Chlorination Coupled with H₂ Evolution in Acidic Water

Quan,

Chen,

Liu

et al. 2023

Adv Funct Materials

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Acidic water electrolysis (AWE) has the potential to revolutionize green H2 generation with flexible partial load range, high gas purity, and rapid system response. However, the extensive usage of noble Ru/Ir metals and sluggish oxygen evolution reaction (OER) with inexpensive O2 products pose significant challenges in anodes. Herein, it is demonstrated that ultralow Pt single atoms in highly porous N‐doped carbons (Pt1/p‐NC@CNTs) can effectively catalyze chlorine evolution reaction (CER) for on‐site chlorination to replace OER in AWE, with 200 mV potential saving at 10 mA cm−2. As a result, various organic halide motifs of pharmaceutical molecules by chlorinating anisole, ketones, and olefins can be realized, along with H2 coproduction. Combined physicochemical characterizations including synchrotron X‐ray absorption spectroscopy, finite element methodsimulations, and theory calculations indicate that atomic Pt‐N4 active sites balance the adsorption/desorption of Cl intermediates (Volmer step) and the plentiful porosity of Pt1/p‐NC@CNTs with high specific surface area of 313 m2 g−1 enriches Cl− around active sites (Heyrovský step), collectively promoting the rate‐limiting Volmer–Heyrovský pathway for improved CER.

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Single platinum atoms anchored on holy carbon nitride for efficient photodegradation of sulfonylurea herbicide

Cited by 16 publications

References 63 publications

Carbon nitride based materials: more than just a support for single-atom catalysis

Carbon nitride based materials: more than just a support for single-atom catalysis

Recent Progress of Single‐Atom Photocatalysts Applied in Energy Conversion and Environmental Protection

Atomic Pt‐N₄ Sites in Porous N‐Doped Nanocarbons for Enhanced On‐Site Chlorination Coupled with H₂ Evolution in Acidic Water

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Single platinum atoms anchored on holy carbon nitride for efficient photodegradation of sulfonylurea herbicide

Cited by 16 publications

References 63 publications

Carbon nitride based materials: more than just a support for single-atom catalysis

Carbon nitride based materials: more than just a support for single-atom catalysis

Recent Progress of Single‐Atom Photocatalysts Applied in Energy Conversion and Environmental Protection

Atomic Pt‐N4 Sites in Porous N‐Doped Nanocarbons for Enhanced On‐Site Chlorination Coupled with H2 Evolution in Acidic Water

Contact Info

Product

Resources

About

Atomic Pt‐N₄ Sites in Porous N‐Doped Nanocarbons for Enhanced On‐Site Chlorination Coupled with H₂ Evolution in Acidic Water