Opportunities and challenges for plastic depolymerization by biomimetic catalysis DOI Creative Commons

Yanfen Wu,

Qikun Hu,

Yizhen Che

et al.

Chemical Science, Journal Year: 2024, Volume and Issue: 15(17), P. 6200 - 6217

Published: Jan. 1, 2024

Plastic waste has imposed significant burdens on the environment. Chemical recycling allows for repeated regeneration of plastics without deterioration in quality, but often requires harsh reaction conditions, thus being environmentally unfriendly. Enzymatic catalysis offers a promising solution under mild it faces inherent limitations such as poor stability, high cost, and narrow substrate applicability. Biomimetic may provide new avenue by combining enzyme-like activity with stability inorganic materials. demonstrated great potential biomass conversion recently shown progress plastic degradation. This perspective discusses biomimetic degradation from two perspectives: imitation active centers substrate-binding clefts. Given chemical similarity between plastics, relevant work is also included discussion to draw inspiration. We conclude this highlighting challenges opportunities achieving sustainable via approach.

Language: Английский

Nanozymes: Definition, Activity, and Mechanisms DOI Creative Commons
Mohamad Zandieh, Juewen Liu

Advanced Materials, Journal Year: 2023, Volume and Issue: 36(10)

Published: Feb. 17, 2023

Abstract “Nanozyme” is used to describe various catalysts from immobilized inorganic metal complexes, enzymes nanoparticles. Here, the history of nanozymes dvescribed in detail, and they can be largely separated into two types. Type 1 refer or on nanomaterials, which were dominant first decade since 2004. 2 nanozymes, rely surface catalytic properties are dominating type past decade. The definition evolving, a based same substrates products as able cover most currently claimed although may have different mechanisms compared their enzyme counterparts. A broader inspire application‐based research replace with nanomaterials for analytical, environmental, biomedical applications. Comparison also requires clear nanozyme unit. Four ways defining unit described, iron oxide horseradish peroxidase activity comparison examples each definition. Growing work devoted understanding mechanism provides basis further rational engineering active sites. Finally, future perspective field discussed.

Language: Английский

Citations

340

Toward carbon neutrality: Selective conversion of waste plastics into value-added chemicals DOI Creative Commons
Junliang Chen, Luyao Zhang, Li Wang

et al.

Matter, Journal Year: 2023, Volume and Issue: 6(10), P. 3322 - 3347

Published: Oct. 1, 2023

Language: Английский

Citations

64

Nanozymes: powerful catalytic materials for environmental pollutant detection and degradation DOI

Qiaoqiao Diao,

Xinyu Chen,

Zheng Tang

et al.

Environmental Science Nano, Journal Year: 2024, Volume and Issue: 11(3), P. 766 - 796

Published: Jan. 1, 2024

Here we made a critical review on nanozyme-involved detection and degradation of environmental pollutants, the research progress achieved in last five years was emphatically concluded.

Language: Английский

Citations

54

Application of Nanozymes in Environmental Monitoring, Management, and Protection DOI Creative Commons

Miaomiao Wang,

Ping Zhu, Shuge Liu

et al.

Biosensors, Journal Year: 2023, Volume and Issue: 13(3), P. 314 - 314

Published: Feb. 24, 2023

Nanozymes are nanomaterials with enzyme-like activity, possessing the unique properties of and natural catalytic functions. catalytically active, stable, tunable, recyclable, versatile. Therefore, increasing attention has been paid in fields environmental science life sciences. In this review, we focused on most recent applications nanozymes for monitoring, management, protection. We firstly introduce tuning activity according to some crucial factors such as size shape, composition doping, surface coating. Then, application introduced detail. can not only be used detect inorganic ions, molecules, organics, foodborne pathogenic bacteria but also involved degradation phenolic compounds, dyes, antibiotics. The capability was reported assisting air purification, constructing biofuel cells, marine antibacterial fouling removal. Finally, current challenges future trends toward proposed discussed.

Language: Английский

Citations

49

Transition metal-based nanozymes: Classification, catalytic mechanisms and emerging biomedical applications DOI
Dandan Zhang, Qing Chen,

Qunxiang Ren

et al.

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 508, P. 215771 - 215771

Published: March 17, 2024

Language: Английский

Citations

27

Bioelectrochemical systems – A potentially effective technology for mitigating microplastic contamination in wastewater DOI
Hui Wang, Qixing Zhou

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 450, P. 141931 - 141931

Published: March 25, 2024

Language: Английский

Citations

23

Impact of iron/aluminum (hydr)oxide and clay minerals on heteroaggregation and transport of nanoplastics in aquatic environment DOI
Xin Nie, Xiaohui Xing,

Ruiyin Xie

et al.

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 446, P. 130649 - 130649

Published: Dec. 21, 2022

Language: Английский

Citations

46

Preparation of magnetic adsorbent and its adsorption removal of pollutants: An overview DOI

Zitao Shen,

Yixin Kuang,

Suxin Zhou

et al.

TrAC Trends in Analytical Chemistry, Journal Year: 2023, Volume and Issue: 167, P. 117241 - 117241

Published: Aug. 19, 2023

Language: Английский

Citations

41

Photocatalytic Upcycling of Plastic Waste: Mechanism, Integrating Modus, and Selectivity DOI Creative Commons
Li Wang, Shan Jiang,

Wenke Gui

et al.

Small Structures, Journal Year: 2023, Volume and Issue: 4(10)

Published: June 25, 2023

Plastics are ubiquitous and indispensable in our daily life because of their low cost, portability, durability, processability. However, due to the overuse, short service life, chemical inert character, accumulated discarded plastics pose a great threat sustainable development ecology environment. Photocatalysis represents highly promising technology transforming plastic wastes into value‐added products via green mild method. In this perspective, advantages photocatalysis discussed compared with other catalysis technologies including thermal catalysis, electrocatalysis, enzyme catalysis. Then possible photocatalytic upcycling path is clarified under different experimental conditions. The types that can be upcycled by photocatalysis, integrating modus between photocatalysts as well modulation product selectivity also emphasized. Finally, challenges insights future waste fields presented. It expected timely critical review provides instructive guidance for design high efficiency toward upcycling.

Language: Английский

Citations

38

Insight into Iron Leaching from an Ascorbate‐Oxidase‐like Fe−N−C Nanozyme and Oxygen Reduction Selectivity** DOI
Xuwen Cao,

Caixia Zhu,

Qing Hong

et al.

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(27)

Published: May 5, 2023

Ascorbate (H2 A) is a well-known antioxidant to protect cellular components from free radical damage and has also emerged as pro-oxidant in cancer therapies. However, such "contradictory" mechanisms underlying H2 A oxidation are not well understood. Herein, we report Fe leaching during catalytic using an Fe-N-C nanozyme ferritin mimic its influence on the selectivity of oxygen reduction reaction (ORR). Owing heterogeneity, Fe-Nx sites primarily catalyzed 4 e- ORR via iron-oxo intermediate. Nonetheless, trace O2 ⋅- produced by marginal N-C through 2 accumulated attacked sites, leading linear leakage unstable ions up 420 ppb when concentration increased mM. As result, substantial fraction (ca. 40 %) were activated, new 2+2 path was finally enabled, along with Fenton-type oxidation. Consequently, after diffused into bulk solution, at stopped production, which origin effect A.

Language: Английский

Citations

34