Advanced Sustainable Systems最新文献

X. Jin, Y. Liang, Y. Liu, H. Ye, R. Yang, Y. Wu, W. Zhao, C. Sonne, C. Xia. Adv. Sustain. Syst. 9 (2025), e00568. https://doi.org/10.1002/adsu.202500568

In paragraph 1 of the “Introduction” section, the reference cited in the text “Over 90% of administered antibiotics cannot be metabolized within the body and are subsequently excreted into sewage systems.^[3]” was incomplete. This should have added a reference [3a] to support the statement about the “90% of the administered antibiotics not being metabolized and excreted into the sewage systems.” The corrected reference is as follows:

[3] a) K. Kumar, S. C. Gupta, Y. Chander, A. K. Singh, Advances in agronomy 2005, 87, 1; b) Y. Wang, Y. He, Q. Wang, X. Wang, B. L. Tardy, J. J. Richardson, O. J. Rojas, J. Guo, Matter 2023, 6, 260.

The authors also admitted to the need to clarify the definition of “bed volume” vs “column size” and were able to provide the explanation of them. The corrected sentences were added in paragraph 4 of the “2.2. Stability and Adsorption Performance of FeTi-bioCap” section. The corrected sentences are as follows:

“The results show that after processing 20 column bed volumes, FeTi-bioCap still achieved a high removal rate of 98.4% for ciprofloxacin (Figure 3f). The bed volume is the unit for measuring solution volume. One bed volume equals the solution volume of one separation column having a size is 1.6 cm in diameter and 20 cm in length in our experiments.”

The c₀ represents the concentration of antibiotics in the initial solution, and c_t refers to the concentration of antibiotics in the solution at the measuring point.

In paragraph 4 of the “2.4. Influence of Flow Rate and Concentration on Antibiotics Adsorption and Removal” section, the text “This result indicates that as the column size increases, the residence time of the antibiotic solution within the column and its contact time with the adsorption sites on FeTi-bioCap also increase, effectively enhancing the antibiotic removal efficiency.” was incorrect. This should have read: “According to results, we infer that as the column size increases, the residence time of the antibiotic solution within the column and its contact time with the adsorption sites on FeTi-bioCap also increase, effectively enhancing the antibiotic removal efficiency.”

The authors confirm that all the experimental results and corresponding conclusions mentioned in the paper remain unaffected.

The authors apologize for these errors.

To replace rare and expensive precious metals, developing an electrocatalyst that combines cost-effectiveness, stability, and enhanced efficiency for hydrogen evolution reactions (HER) remains a major challenge. In this study, graphdiyne with in situ formation of CuO nanoparticles is prepared using a simple one-pot method, followed by the photodeposition of silver (Ag) under varying light exposure durations. Interestingly, GDY/Cu/Ag_{10min/0 °C} demonstrated outstanding HER activity, with a reduced onset overpotential of 193 mV and a Tafel slope of 84 mV dec⁻¹. This performance rivals or surpasses that of many reported non-precious metal catalysts. The enhanced catalytic activity is attributed to a more accessible active site, resulting from the size reduction of Ag particles and the synergistic effect localized at the Cu/Ag interface. In particular, it is found that the Cu/Ag interface plays a pivotal role in the proton adsorption, which significantly enhances HER performance. Theoretical calculations revealed that proton adsorption at the Cu/Ag interface is significantly improved. Notably, the active sites at the Cu/Ag interface exhibited lower free adsorption energies (0.22–0.24 eV), resulting in lower limiting potential, in agreement with HER activity. The catalyst exhibits excellent performance, remarkable stability, and high efficiency, meeting the requirements for hydrogen production in diverse applications.

Efficient removal of nitrogen oxides (NO_x) from urban air is a pressing environmental need. Here, Ni-doped SnS₂ nanoflowers are synthesized via a microwave-assisted solvothermal method and their visible-light-driven NO_x abatement performance is evaluated. X-ray diffraction and Raman confirm phase-pure hexagonal SnS₂, while X-ray photoelectron spectroscopy verifies successful Ni²⁺ incorporation without secondary phases. Ni doping slightly distorts the marigold flower-like morphology observed in pristine SnS₂ and narrows the bandgap (UV–vis), enhancing visible-light absorption and charge separation. Photoluminescence spectra reveal suppressed carrier recombination, with 5 wt% Ni-doped SnS₂ showing the lowest emission intensity. Photocatalytic tests demonstrate that this composition achieves the highest NO_x removal efficiency (14.2%) within 60 min, 1.6× higher than pristine SnS₂, while maintaining 70% activity after ten cycles. Theoretical calculations reveal Ni-3d/S-p hybridization and the introduction of mid-gap states, which lower the optical transition threshold and support the experimentally observed bandgap narrowing and enhanced light harvesting. A mechanism involving Ni-induced electron trapping and reactive oxygen species generation is proposed to explain the enhanced activity. This work establishes Ni doping as an effective strategy to tailor the structural, optical, and electronic properties of SnS₂, delivering a low-cost, stable, and highly active photocatalyst for sustainable NO_x mitigation.

In this study, the hydrogelations of Fmoc-Tyr-OH (Fmoc-Y) and Fmoc-Trp-OH (Fmoc-W) have been investigated in 50 mm phosphate buffer (saline) of pH 7.4. Gold and silver nanoparticles have been synthesized in situ within these hydrogels under physiological conditions without using any toxic reducing agents to achieve hybrid hydrogels formation successfully. The nanoparticles formation kinetics have been monitored through UV-vis spectroscopy. Native and hybrid hydrogels have been characterized by using UV-vis, fluorescence, FTIR, XRD, FE-SEM, and HR-TEM analyses. Rheological measurements revealed their mechanical strength and thixotropic behaviour. Moreover, both native and hybrid hydrogels show potent antibacterial activities against both Gram-positive and Gram-negative bacteria. Interestingly, these as-synthesized gold nanoparticles containing hybrid hydrogels and their xerogels exhibited excellent catalytic activities for the reduction of p-nitrophenol (p-NP) to p-aminophenol (p-AP), monitored through time-dependent UV-vis spectroscopy. These catalysts retained their activities over multiple cycles, highlighting their reusability and stability. To the best of our literature knowledge, this is a green, sustainable, fastest, economical and effective reduction reaction of hazardous p-NP using amino acids-stabilized gold nanoparticles containing xerogels in water ever reported to produce value-added chemical precursor p-AP for the syntheses of various drug molecules. This is a minimalistic approach to device biomaterials-based advanced sustainable system for environmental remediation and value-added chemical production.

The sustainable development of lithium-ion batteries (LIBs) depends on efficient recycling methods, with direct regeneration enabling material reuse. However, the effective separation of electrode materials remains a critical challenge. Traditional methods often rely on strong acids, bases, or high-temperature treatments, which are energy intensive, environmentally harmful, and may damage the material structure, thus affecting regeneration quality. To address this, an ethylene glycol (EG) based separation method is proposed. Using LiNi_1/3Co_1/3Mn_1/3O₂ (NCM111) as a representative cathode material, EG effectively dissolves the polyvinylidene fluoride (PVDF) binder at 160 °C, while its ─OH groups replace the hydrogen bonds between PVDF and the Al foil, thereby promoting the separation of the cathode material. The recovered Al foil remains intact without corrosion, enhancing its economic value. Finally, a eutectic salt method (LiOH and Li₂CO₃, molar ratio 5.25:1) is employed to repair the structural degradation of the cathode material caused by Li⁺ loss, with its recovery assessed through characterization and electrochemical testing. The EG-based regeneration method enables efficient and sustainable recycling of LIBs cathode materials, contributing to the development of environmentally friendly battery recycling technologies.

Synthesis of oxygenated MXene grafted MOFs structures and their enhanced characteristics have been found rare for supercapacitor applications. Herein, oxygenated MXene Mo₂CT_x (T_x = ─O, ─OH) and oxygenated MXene Mo₂CT_x nanosheets grafted CoBDC nanorods are synthesized successfully. Synergetically, oxygenated MXene Mo₂CT_x nanosheets grafted CoBDC nanorods exhibited the enhanced electrical conductivity of 12.90 µS cm⁻¹, specific surface of 70.20 m² g⁻¹ and pore diameter of 7.82 nm due to a good grafting of nanorods and nanosheets. Owing to enhanced characteristics, oxygenated MXene Mo₂CT_x nanosheets grafted CoBDC nanorods showed a strong redox reaction and exhibited a good specific capacitance of 1295.51 F g⁻¹, energy density of 54.43 W h Kg⁻¹ and power density of 3856.23 W Kg⁻¹, which is greater than pristine MXene Mo₂CT_x nanosheets and CoBDC nanorods. Oxygenated MXene Mo₂CT_x nanosheets grafted CoBDC nanorods retained a specific capacitance of 90.70%. An asymmetric system consisting of oxygenated MXene Mo₂CT_x nanosheets, grafted CoBDC nanorods, and activated carbon showed a potential window of 1.2 V, and energy and power densities are found as 17.68 W h Kg⁻¹ and 4105.92 W Kg⁻¹, respectively. Hence, it can be concluded that oxygenated MXene Mo₂CT_x nanosheets grafted CoBDC nanorods exhibited a good characteristics for supercapacitor applications.

Intensive agriculture and industrialization have caused soil contamination, deterioration, and reduced productivity, threatening agricultural sustainability. Petroleum hydrocarbons (PHCs) from natural and human-made sources have caused significant soil pollution and health hazards, prompting advanced research. However, due to cost and practical limitations, existing approaches have fallen short in effectively restoring soil health and productivity. Recent advancements in nanotechnology offer promising opportunities to enhance soil quality indicators, increase crop yield, and ensure environmental sustainability. Nanotechnology has gained attention in agriculture for developing sustainable technologies and strategies for environmental remediation. By utilizing nanomaterials, nanotechnology enables the creation of improved materials and products, particularly for remediation. Emerging approaches, like combining nanomaterials with biological processes, are recognized as effective for removing contaminants. Integrating nanomaterials with microorganisms enhances their functionality and promotes plant nutrient availability, thereby improving soil health. Nano-enhanced bioremediation is a successful method for addressing PHC contamination, enhancing the absorption and breakdown of pollutants, and reducing their accumulation and dispersion. This paper explores the role of nanomaterials in augmenting rhizoremediation of PHC-polluted soils. It examines the rhizosphere involvement in bioremediation and highlights the potential of nanotechnology in improving soil health. The interactions between nanomaterials and microbes are discussed, along with their mechanisms and applications.

Electrocatalytic CO₂ reduction reaction (CO₂RR) in acidic media attracts significant attention due to its ability to circumvent the low carbon utilization efficiency and system instability associated with carbonate formation in traditional alkaline/neutral systems. However, although high proton concentrations in acidic environments inhibit carbonate generation, they simultaneously intensify hydrogen evolution reaction (HER) competition and compromise the adsorption stability of key intermediates, thereby severely restricting CO₂ reduction selectivity and efficiency. Thus, it is a great challenge to effectively suppress HER and accelerate acidic CO₂RR. This review commences with an overview of recent progress in acidic CO₂ electrolysis, addressing the fundamental limitations hindering the use of acidic electrolytes. It subsequently systematically examines advanced strategies to overcome these challenges, encompassing the regulation of the electrolyte microenvironment, the role of alkali cations, surface and interface functionalization, nanoconfinement structural design, and the exploitation of novel electrolyzers. The conclusion proffers insights into emerging challenges and future research directions. It is anticipated that this timely endeavor could galvanize research efforts to mitigate CO₂ crossover, catalyze novel insights for resolving the “alkalinity problem”, and propel CO₂RR into a more sustainable and viable technology.

Lithium-sulfur (Li-S) batteries exhibit substantial potential as next-generation energy storage devices due to their high theoretical capacity (1675 mAh g⁻¹), low cost, and environmental friendliness. However, the practical application is hindered by the insulating nature of sulfur/lithium sulfide (Li₂S) and the polysulfide shuttle effect. Herein, hollow-structured Co-CoP (Co-CoP@HNC)and intercalated is successfully fabricated it into the interlayer spacing of 2D MXene(MX) nanosheets (Co-CoP@MX) to modify the separator for Li-S batteries. The Co-CoP@HNC intercalation expands the MX interlayer spacing, facilitating lithium ions (Li⁺) transport, while the polar Co-CoP@HNC acts as a catalytic center to accelerate polysulfide conversion. In addition, the built-in electric field (BIEF) between Co and CoP drives the directional transfer of adsorbed polysulfides from the CoP (strong adsorption) to the Co (high catalytic activity), thereby accelerating their conversion. Therefore, the battery with the Co-CoP@MX modified separator exhibits an initial capacity of 1356.77 mAh g⁻¹ at 0.2 C, maintains 979.77 mAh g⁻¹ at 1 C with a minimal capacity decay rate of 0.078% per cycle in 500 cycles, and achieves a high initial capacity of 751.08 mAh g⁻¹ under high sulfur loading of 8.36 mg cm⁻².

The global push for climate neutrality and circularity has intensified interest in converting plastic waste into valuable chemical feedstocks. This study examines the techno-economic feasibility of producing syngas from post-consumer plastic waste (PCPW) via chemical looping partial oxidation (CLPO) and compares it to more established syngas production techniques, namely dry reforming of methane (DRM) and gasification of PCPW. Process simulations are conducted in Aspen Plus, targeting a syngas stoichiometric number (SN) of 2.0, which is ideal for downstream Fischer–Tropsch synthesis. The CLPO process, conceptualized in a dual fluidized bed reactor setup, is modeled using literature data and compared to DRM and gasification in terms of capital and operational expenditures (CAPEX and OPEX). A detailed separation train is designed to meet severe syngas purity requirements, accounting for typical impurities present in process feedstocks. Results show that, although CLPO offers flexibility and avoids direct air separation, it suffers from high CAPEX and OPEX, leading to a significantly higher levelized cost of syngas (LCOS) of 616 € t⁻¹, compared to 503 and 494 € t⁻¹ for the DRM and gasification benchmarks, respectively. Sensitivity analyses highlight syngas selling price and reactor CAPEX as key economic drivers.