Recent Advances of Magnetite (Fe3O4)-Based Magnetic Materials in Catalytic Applications

Magnetochemistry, Journal Year: 2023, Volume and Issue: 9(4), P. 110 - 110

Published: April 20, 2023

Catalysts play a critical role in producing most industrial chemicals and are essential to environmental remediation. Under the demands of sustainable development, environment protection, cost-related factors, it has been suggested that catalysts sufficiently separable conveniently recyclable catalysis process. Magnetite (Fe3O4) nanomaterials provide possible way achieve this goal, due their magnetism, chemical stability, low toxicity, economic viability, etc. Therefore, Fe3O4-based materials emerging as an important solid support load heterogeneous immobilize homogeneous catalysts. Moreover, addition magnetic character will not only make recovery much easier but also possibly endow with desirable properties, such magnetothermal conversion, Lewis acid, mimetic enzyme activity, Fenton activity. The following review comprises short survey recent reports catalytic applications materials. It contains seven sections, introduction into theme, remediation, electrocatalysis, organic synthesis, synthesis biodiesel, cancer treatment, conclusions about reported research perspectives for future developments. Elucidation functions mechanisms Fe3O4 nanoparticles (NPs) these may benefit acquisition robust affordable protocols, leading good activity enhanced recoverability.

Language: Английский

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1-Butyl-3-methylimidazolium Chloride Affects Anaerobic Digestion through Altering Organics Transformation, Cell Viability, and Microbial Community

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(8), P. 3145 - 3155

Published: Feb. 16, 2023

1-Butyl-3-methylimidazolium chloride (BmimCl), an imidazolium-based ionic liquid, is considered the representative emerging persistent aquatic pollutant, and its environmental toxicity has attracted a growing concern. However, most of investigations focused on monocultures or single organism, with little information available complex syntrophic consortium that dominates successional biochemical processes, such as anaerobic digestion. In this study, effect BmimCl at environmentally relevant levels glucose digestion was therefore investigated in several laboratory-scale mesophilic digesters to provide support. Experimental results showed 1–20 mg/L inhibited methane production rate by 3.50–31.03%, 20 butyrate, hydrogen, acetate biotransformation 14.29%, 36.36%, 11.57%, respectively. Toxicological mechanism studies revealed extracellular polymeric substances (EPSs) adsorbed accumulated through carboxyl, amino, hydroxyl groups, which destroyed EPSs' conformational structure, thereby leading inactivation microbial cells. MiSeq sequencing data indicated abundance Clostridium_sensu_stricto_1, Bacteroides, Methanothrix decreased 6.01%, 7.02%, 18.45%, respectively, response BmimCl. Molecular ecological network analysis compared control, lower complexity, fewer keystone taxa, associations among taxa were found BmimCl-present digester, indicating reduced stability community.

Language: Английский

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Insights into the Occurrence, Fate, Impacts, and Control of Food Additives in Food Waste Anaerobic Digestion: A Review

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(17), P. 6761 - 6775

Published: April 18, 2023

The recovery of biomass energy from food waste through anaerobic digestion as an alternative to fossil is great significance for the development environmental sustainability and circular economy. However, a substantial number additives (e.g., salt, allicin, capsaicin, allyl isothiocyanate, monosodium glutamate, nonnutritive sweeteners) are present in waste, their interactions with might affect recovery, which typically overlooked. This work describes current understanding occurrence fate waste. biotransformation pathways during well discussed. In addition, important discoveries effects underlying mechanisms on reviewed. results showed that most had negative by deactivating functional enzymes, thus inhibiting methane production. By reviewing response microbial communities additives, we can further improve our impact digestion. Intriguingly, possibility may promote spread antibiotic resistance genes, threaten ecology public health, highlighted. Furthermore, strategies mitigating outlined terms optimal operation conditions, effectiveness, reaction mechanisms, among chemical methods have been widely used effective promoting degradation increasing review aims advance spark novel research ideas optimizing organic solid

Language: Английский

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Thiosulfate pretreatment enhancing short-chain fatty acids production from anaerobic fermentation of waste activated sludge: Performance, metabolic activity and microbial community

Water Research, Journal Year: 2023, Volume and Issue: 238, P. 120013 - 120013

Published: April 27, 2023

Language: Английский

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A critical review on sustainable management and resource utilization of digestate

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 183, P. 339 - 354

Published: Jan. 12, 2024

Language: Английский

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Tannic Acid Modulation of Substrate Utilization, Microbial Community, and Metabolic Traits in Sludge Anaerobic Fermentation for Volatile Fatty Acid Promotion

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(22), P. 9792 - 9803

Published: May 23, 2024

Anaerobic fermentation is a crucial route to realize effective waste activated sludge (WAS) resource recovery and utilization, while the overall efficiency commonly restrained by undesirable disruptors (i.e., chemical dewatering agents). This work unveiled unexpectedly positive effects of biodewatering tannic acid (TA) on volatile fatty acids (VFAs) biosynthesis during WAS anaerobic fermentation. The total VFAs yield was remarkably increased 15.6 folds with enriched acetate butyrate in TA-occurred systems. TA capable disintegrate extracellular polymeric substances promote organics release. However, further modulated soluble proteins structure hydrogen bonding hydrophobic interactions, resulting decrease bioavailability consequential alteration metabolic substrate feature. These changes reshaped microbial community stimulated adaptive regulatory systems hydrolytic–acidogenic bacteria. keystone species for carbohydrate metabolism Solobacterium Erysipelotrichaceae) were preferentially enriched. Also, typical quorum sensing enhancing transport) two-component sustaining high activity) networks connectivity ecological cooperative behaviors response stress. Additionally, functions responsible hydrolysis, transmembrane transport, intracellular as well VFA showed relative abundance, which maintained activities biosynthesis. study underscored advantages treatment context deciphered interactive mechanisms.

Language: Английский

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Effects of Mixtures of Engineered Nanoparticles and Cocontaminants on Anaerobic Digestion

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(6), P. 2598 - 2614

Published: Jan. 31, 2024

The widespread application of nanotechnology inevitably leads to an increased release engineered nanoparticles (ENPs) into the environment. Due their specific physicochemical properties, ENPs may interact with other contaminants and exert combined effects on microbial community metabolism anaerobic digestion (AD), important process for organic waste reduction, stabilization, bioenergy recovery. However, complicated interactions between as well AD are often overlooked. This review therefore focuses co-occurrence cocontaminants in process. key influences summarized from available literature, including critical mechanisms influencing factors. Some sulfides, coagulants, chelating agents have a dramatic "detoxification" effect inhibition AD. some antibiotics surfactants increase reasons these differences be related interactive cocontaminants, changes enzyme activities, adenosine triphosphate (ATP) levels, reactive oxygen species (ROS) production, communities. New scientific opportunities better understanding coexistence real world situations converging scale nanoparticles.

Language: Английский

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Unveiling the synergistic potential of ferrate and pyrophosphate co-pretreatment enhancing anaerobic sludge fermentation: Performance and mechanistic insights

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159612 - 159612

Published: Jan. 15, 2025

Language: Английский

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Benzo[a]pyrene stress impacts adaptive strategies and ecological functions of earthworm intestinal viromes

The ISME Journal, Journal Year: 2023, Volume and Issue: 17(7), P. 1004 - 1014

Published: April 17, 2023

The earthworm gut virome influences the structure and function of microbiome, which in turn worm health ecological functions. However, despite its soil quality implications, it remains elusive how intestinal phages respond to different environmental stress, such as pollution. Here we used metagenomics metatranscriptomics investigate interactions between their bacteria under benzo[a]pyrene (BaP) concentrations. Low-level BaP (0.1 mg kg-1) stress stimulated microbial metabolism (1.74-fold control), enhanced antiphage defense system (n = 75) against infection (8 phage-host pairs). exposure resulted highest proportion lysogenic (88%), prophages expressed auxiliary metabolic genes (AMGs) associated with nutrient transformation (e.g., amino acid metabolism). In contrast, high-level (200 disrupted suppressed systems 29), leading increase phage-bacterium association (37 pairs) conversion lytic (lysogenic ratio declined 43%). Despite fluctuating interactions, phage-encoded AMGs related antioxidant pollutant degradation were enriched, apparently alleviate pollution stress. Overall, these findings expand our knowledge complex pollution-stressed guts, deepen understanding evolutionary roles phages.

Language: Английский

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Multifaceted roles of methylisothiazolinone intervention in sludge disintegration and acidogenic and methanogenic pathways for efficient carboxylate production during anaerobic fermentation

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 472, P. 145022 - 145022

Published: July 27, 2023

Language: Английский

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