Photocatalytic material–microorganism hybrid systems in water decontamination

Trends in biotechnology, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Pyrrhotite-dependent microbial reduction and magnetic separation for efficient vanadium detoxification and recovery in contaminated aquifer

Water Research, Journal Year: 2024, Volume and Issue: 251, P. 121143 - 121143

Published: Jan. 15, 2024

Language: Английский

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Revisiting Solar Energy Flow in Nanomaterial-Microorganism Hybrid Systems

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(15), P. 9081 - 9112

Published: June 20, 2024

Nanomaterial-microorganism hybrid systems (NMHSs), integrating semiconductor nanomaterials with microorganisms, present a promising platform for broadband solar energy harvesting, high-efficiency carbon reduction, and sustainable chemical production. While studies underscore its potential in diverse solar-to-chemical conversions, prevailing NMHSs grapple suboptimal conversion efficiency. Such limitations stem predominantly from an insufficient systematic exploration of the mechanisms dictating flow. This review provides overview notable advancements this nascent field, particular focus on discussion three pivotal steps flow: capture, cross-membrane transport, into chemicals. key challenges faced each stage are independently identified discussed, viable solutions correspondingly postulated. In view interplay affecting overall efficiency conversion, subsequent discussions thus take integrative viewpoint to comprehend, analyze improve flow current different configurations, highlighting contemporary techniques that can be employed investigate various aspects within NMHSs. Finally, concluding section summarizes opportunities future research, providing roadmap continued development optimization

Language: Английский

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Dissimilatory nitrate reduction to ammonium driven by different electron donors: Mechanisms, recent advances, and future perspectives

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160625 - 160625

Published: Feb. 1, 2025

Language: Английский

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Research progress and prospect of low-carbon biological technology for nitrate removal in wastewater treatment

Frontiers of Environmental Science & Engineering, Journal Year: 2024, Volume and Issue: 18(7)

Published: March 25, 2024

Abstract Wastewater treatment plants are the major energy consumers and significant sources of greenhouse gas emissions, among which biological nitrogen removal wastewater is an important contributor to carbon emissions. However, traditional heterotrophic denitrification still has problems excessive residual sludge requirement external sources. Consequently, development innovative low-carbon nitrate technologies necessary. This review outlines key roles sulfur autotrophic hydrogen in treatment. The discovered nitrate/nitrite dependent anaerobic methane oxidation enables sustainable emission reduction by utilizing available situ . Photosynthetic microorganisms exhibited a promising potential achieve carbon-negative removal. Specifically, algal-bacterial symbiosis system photogranules offer effective prospective options for Then, emerging technology photoelectrotrophic underlying photoelectron transfer mechanisms discussed. Finally, we summarize prospect these technologies, highlighting that solar-driven area future guiding significance design systems.

Language: Английский

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Wastewater denitrification driven by mechanical energy through cellular piezo-sensitization

Nature Water, Journal Year: 2024, Volume and Issue: 2(6), P. 531 - 540

Published: June 3, 2024

Language: Английский

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A scalable photovoltaic-type photoelectrotrophic denitrification reactor for selective conversion nitrate to nitrogen via isolating reactive oxygen species

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160816 - 160816

Published: Feb. 1, 2025

Language: Английский

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Particulate organic matter triggers photoelectrotrophic denitrification: An overlooked biogeochemical reaction induced by sunlight

The Innovation Geoscience, Journal Year: 2025, Volume and Issue: unknown, P. 100129 - 100129

Published: Jan. 1, 2025

<p>Particulate organic matter (POM) is a major carbon pool in terrestrial and aquatic ecosystems its biogeochemical processes significantly affect the global cycle trophic levels of ecosystems. As natural photosensitizer, there have been no reports on photoelectron transfer from POM to microorganisms, leading long-term neglect processes. Using photoelectrotrophic denitrification (PEDeN) as model system, this study first demonstrate POM-triggered PEDeN effect; that is, photoelectrons were used drive microbial denitrification. By constructing <i>Thiobacillus denitrificans</i>-POM it was found irradiation accelerated nitrate reduction with kinetic constant 0.03 ± 0.007 h⁻¹. Irradiation resulted complete nitrogen main product (56.3 8.8%), compared dark system nitrite product. The upregulated (<i>p</i> < 0.01) denitrifying genes support idea conversion microbial-mediated process. During process, plays multiple roles: photosensitizing mediating transfer, acting sacrificial donor. two roles not established previously, revealing new electron-transfer mechanism between microorganisms. latter dissolution, representing newly discovered photodissolution process involving highlights previously overlooked photoelectrochemical reactions microorganism, emphasizing need explore triggered by POM-microorganisms suggesting strategy for promoting sunlight-driven denitrification surface environments.</p>

Language: Английский

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Novel Metabolic Pathways of Bioelectrochemical Vanadate Reduction by Thiobacillus denitrificans without Exogenous Electron Donor Supplementation in Groundwater

Water Research, Journal Year: 2025, Volume and Issue: unknown, P. 123739 - 123739

Published: April 1, 2025

Language: Английский

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Efficient utilization of photoelectron-hole at semiconductor-microbe interface for pyridine degradation with assistance of external electric field

Water Research X, Journal Year: 2024, Volume and Issue: 22, P. 100214 - 100214

Published: Jan. 1, 2024

In this study, enhanced pyridine bio-photodegradation with assistance of electricity was achieved. Meanwhile, photoelectron-hole played a vital role in accelerating biomineralization. The significant separation achieved an external electric field, which provided sufficient electron donors and acceptors for biodegradation. transport system activity also revealed the full utilization by microbes at semiconductor-microbe interface electricity. Microbial community analysis confirmed enrichment functional species related to biodegradation transfer. function microbial co-occurrence networks indicated that upregulated genes positive interactions different were important reasons field. A possible mechanism proposed, i.e., more photoelectrons holes semiconductors utilized accelerate reduction oxidation electrical stimulation. excellent performance photoelectrical showed potential alternative recalcitrant organic wastewater treatment.

Language: Английский

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