JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Moxuan Li,Zhiwei Liu,Ying Feng,Jiajing Tu,Ming Li,Rongxing He
Highly efficient oxygen evolution reaction (OER) depends not only on the activity of the metal centers but also on the rapid removal of protons from surface oxygenated intermediates. Although exogenously constructed proton relays can facilitate proton transfer, they often suffer from rapid structural collapse and deactivation under strongly oxidative OER conditions. To address this issue, we propose a plausible novel intermediate functionalization strategy that converts the *OH intermediates generated in situ during the OER process into endogenous proton relays, fundamentally circumventing the deactivation problem of exogenously proton relays. Using a controllable partial reconstruction Ni 3 S 2 /NiOOH/CoOOH heterostructure, the retained highly conductive Ni 3 S 2 skeleton triggers electron depletion in the interfacial amorphous layer. Combined in situ Raman spectroscopy and DFT calculations indicate that this electron depletion favors the preferential and strong anchoring of *OH species at specific Ni–Co bridge sites. Subsequent isotope experiments and DFT calculations further support a plausible mechanistic hypothesis in which these anchored *OH species may function as endogenous proton relays, facilitating the deprotonation of oxygenated intermediates on adjacent co sites. Consequently, the catalyst achieves a low overpotential of 139 ± 2 mV at 10 mA cm −2 , a small Tafel slope of 37.01 ± 0.45 mV dec −1 , and stable operation for 300 h. this study offers new insights into designing accelerated proton transfer pathways under harsh anodic OER conditions Download: Download high-res image (138KB) Download: Download full-size image
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JOURNAL OF HAZARDOUS MATERIALS
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2026
·
IF 10.6
Qingsong Zhang,Xihao Li,Longwei Zhang,Yang Xiao,Qingyi Zeng
Reducing soluble U(VI) to insoluble U(IV) is an efficient uranium extraction strategy. However, the two axial oxygen atoms in uranyl (UO 2 2 + ) create a kinetic barrier to electron transfer, hindering U(VI) reduction. Here, we present an innovative strategy that leverages the hydrogen evolution reaction (HER) to generate a localized alkaline microenvironment at the catalyst surface; OH⁻ accumulation rapidly precipitates UO 2 2 ⁺ as insoluble UO 2 (OH) 2 , enabling efficient uranium extraction from water. In this process, the S-rich hollow MoS 2+x with high HER activity, which was derived from the Mo-MOF grown on carbon felt (CF), was used as the cathode (MoS 2+x /CF) in a photovoltaic-driven electrocatalytic system. The anode consists of a TiO 2 nanorod array on FTO glass, coupled with a rear-mounted silicon solar cell. Due to the localized alkaline microenvironment formed by the HER on the MoS 2+x /CF cathode surface, this electrocatalytic system achieves 99.8% uranium removal from uranium-containing wastewater within 30 min of illumination. Density functional theory (DFT) calculations and experimental results confirm that unsaturated edge S atoms in MoS 2+x significantly enhance HER activity. Additionally, the electron transfer between uranium and edge S enhances uranium adsorption and promotes its interfacial reaction with OH*. This work opens new perspectives for uranium extraction from aqueous solutions.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124738
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IF 7.5
Xinyi Tao,Weiwei Chen,Xuehong Fan,Rui Hu,Xuejian Wang,Shiquan Sun,Yu-Hong Cui,Zheng-Qian Liu
Waste-derived biochar catalysts are widely used in catalytic ozonation. However, biochar is often constrained by insufficient surface active sites and low interfacial electron transfer efficiency. In this work, nitrogen (N) and sulfur (S) co-doped sediment-derived biochar (C-N 1 S 2 -600) was prepared by one-step pyrolysis using a mixed compost of black-odorous sediment, reed straw, and food waste as precursors, with melamine and thiourea using as the N and S sources, respectively. The optimized C-N 1 S 2 -600 has a well-developed mesoporous structure, abundant structural defects, and numerous reactive sites originating from N/S–C coordination. Ozonation with C-N 1 S 2 -600 achieved 62.8% Deethylatrazine degradation, which was significantly higher than that of ozonation alone (13.9%) and ozonation with pristine biochar (33.1%). C-N 1 S 2 -600 also exhibited excellent reusability over five consecutive cycles and maintained high performance in secondary effluent. Reactive species identification confirmed that C-N 1 S 2 -600 facilitated the conversion of O 3 into • OH. Theoretical calculations further revealed that N, S co-doping induced a more non-uniform surface charge distribution and narrowed the orbital energy gap, providing electronic-level insights into enhanced O 3 adsorption, interfacial electron transfer, and reactive oxygen species generation. C-N 1 S 2 -600 exhibited good operational stability and tolerance to matrix interference under the tested conditions. This study provides a feasible strategy for converting solid-waste-derived biochar into efficient carbonaceous catalysts for advanced wastewater treatment, and offers a promising strategy for micropollutant abatement and wastewater purification by catalytic ozonation with high-performance biochar catalyst.
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SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2026
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IF 4.8
Zongcheng Zhang,Yu Wang,Feifei Wang,Yushu Li,Li-Jun Ma,Jian Sun
The accurate quantification of α-glucosidase (α-Glu) activity and its inhibitor is of vital for diabetes diagnosis and drug screening. Enzyme activity could be detected by developing a sensing method based on nanozyme-involved cascade reaction. However, such a cascade reaction typically produces only one signal, whereas the fabrication of multifunctional nanozymes toward this end remains a formidable challenge. Herein, iron-doped fluorescent polymer dots (Fe-PDs) were one-pot synthesized under mild conditions. Iron doping accelerates PDs formation and imparts prominent peroxidase (POD)-like activity to the material. The as-prepared Fe-PDs could catalyze the oxidation of colorless TMB by H 2 O 2 to form chromogenic oxTMB, which quenched the intrinsic fluorescence of Fe-PDs via the inner filter effect (IFE). Relying on three-catalyst cascade catalysis of α-Glu, glucose oxidase (GOx) and POD, this work constructed a highly sensitive colorimetric-fluorescent sensing platform. By introducing p -nitrophenyl-α-D-glucopyranoside (PNPG) as the substrate, the system enables quantitative analysis of H 2 O 2 , glucose, α-Glu activity as well as α-Glu inhibitors. Benefiting from cascade-induced signal amplification, the dual-modal assay enables quantitative analysis of α-Glu activity with linear ranges of 0.2–20 mU/mL (colorimetry) and 0.2–25 mU/mL (fluorometry), and detection limits of 0.10 and 0.094 mU/mL, respectively. Furthermore, this assay enables the screening of α-Glu inhibitors (AGIs) and determination of AGIs in real samples, which shows satisfactory consistency compared with the traditional PNPG assay, demonstrating the great application prospects for clinical diagnosis and anti-diabetic drug discovery.
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Journal of Energy Storage
·
2026
·
IF 10.7
Qi Cheng,Tenghui Qiu,Jiashun Liu,Zixuan He,Hua Tian,Lingfeng Shi,Gequn Shu
Photo-assisted lithium‑carbon dioxide battery (Li-CO 2 ) can utilize the charge carriers generated at the cathode by light to reduce the kinetic barriers of carbon dioxide reduction and lithium carbonate decomposition reactions. However, rapid recombination of photogenerated carriers and sluggish interfacial charge transfer still lead to high overpotentials and limited cycle life in photo-assisted Li-CO 2 batteries. Therefore, it is crucial to design highly efficient photocatalysts that can suppress carrier recombination and accelerate interfacial charge transfer for rational optimization. Herein, we adopted the design strategy of metal ion doping and synthesized a Fe-doped ZnS (Zn 1-x Fe x S, denoted as ZFS-x) photocathode by the hydrothermal synthesis method. The doping of iron ions effectively regulates the electronic structure of ZnS, inhibits the recombination of photogenerated carriers, and accelerates the interfacial charge transfer kinetics. The photo-assisted ZFS-x cathode delivers a markedly prolonged cycling lifetime of up to 300 cycles (600 h) at a current density of 0.01 mA cm −2 , substantially exceeding that achieved under dark conditions (144 h). Furthermore, the single-cycle overpotential is significantly reduced from 2.27 V in the dark to 0.49 V under illumination. Morphology studies confirm that appropriate Fe-ion doping significantly enhances the uniformity of the discharge products, which are present as uniformly dispersed nanoscale particles rather than densely packed plate-like or aggregated structures. Moreover, their highly reversible decomposition during charging effectively mitigates pore blockage and interfacial passivation. These results indicate that the incorporation of iron can improve charge separation and regulate the formation and decomposition of Li 2 CO 3 , thereby effectively modulating the ZnS photocathode and ultimately enabling the development of photo-assisted Li-CO 2 batteries with low overpotential and long cycle life.
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ACS Applied Polymer Materials
·
2026
·
IF 5.2
Liu Jia,Duan Xiongcheng,Wu Zhuorui,Meng Wan,Zhang Lin,Li Hengye,Wei Meijie,Wang Zhongxia,Kong Fenying,Wang Wei
Herein,
thioether cyclodextrin-incorporated triazine-based porous
organic polymer (S-CD-TPOP) featuring multifunctional nature was prepared
for iodine vapor uptake and adsorption of organic micropollutants
(OMPs) and Hg 2+ from water. Polycondensation between specially
designed per-6-(4-formylbenzylthio)-β-cyclodextrin (FB-S-CD)
and 1,4-bis(2,4-diamino-1,3,5-triazine)benzene (BDTAB) affords the
S-CD-TPOP containing CD cavities, thioether, and triazine units as
well as high nitrogen content. S-CD-TPOP exhibits a high surface area
of 467.42 m 2 /g with 28.56% nitrogen and 2.16% sulfur contents.
S-CD-TPOP shows iodine vapor uptake of 1.70 g/g, where charge transfer
plays a dominant role. Moreover, S-CD-TPOP displays quick adsorption
kinetics and excellent removal efficiencies for phenols with a maximum
adsorption capacity ( q m ) of 181.16 mg/g
for bisphenol A (BPA). Host–guest and hydrophobic interactions
serve as the main mechanisms for the adsorption of OMPs onto S-CD-TPOP.
Additionally, S-CD-TPOP demonstrates rapid Hg 2+ adsorption
kinetics with a q m value of 45.25 mg/g,
primarily driven by coordination between the −S– group
and Hg 2+ . Furthermore, S-CD-TPOP exhibits great application
potential for simultaneously removing low concentrations BPA and Hg 2+ from river water. S-CD-TPOP also exhibits excellent reusability
and is a promising and versatile adsorbent for removing diverse environmental
pollutants.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2026
·
IF 9.6
Heng Zhang,Jialu Li,Renjie Lu,Huidong Shen,Lihong Wang,Feng Fu,Yucang Liang
Sulfur/oxygen dual-vacancy CuS-S v /NiTiO 3 -O v S-scheme heterojunction was successfully fabricated. • Built-in electric field accelerates electron transfer in sulfur/oxygen-vacancy heterojunction. • Cu centers in CuS-S v accumulate electrons for CO 2 reduction while NiTiO 3 -O v enriches holes in CuS-S v /NiTiO 3 -O v . • Optimized 5% CuS-S v /NiTiO 3 -O v heterojunction exhibits highest CO evolution rate (490 μmol g −1 h −1 ). • Photocatalytic mechanism is proposed for CO 2 reduction. Harnessing solar energy for the photocatalytic CO 2 reduction into valuable fuels presents a sustainability strategy to simultaneously alleviate the global energy crisis and mitigate carbon emission. However, the efficiency of photocatalytic CO 2 reduction is hindered by weak adsorption and sluggish charge separation in semiconductor materials. Herein, a sulfur/oxygen dual-vacancy engineered CuS-S v /NiTiO 3 -O v S-scheme heterojunction is constructed to achieve a remarkable CO production rate of 490.0 μmol g −1 h −1 with 89.1% selectivity. Experimental results reveal that sulfur vacancies probably strengthen CO 2 adsorption and activation, while oxygen defects induced interfacial charge redistribution at the S-scheme heterojunction interface by intensifying the built-in electric field, promoting efficient separation and migration of photogenerated charge carriers. Density functional theory calculations further uncover that sulfur vacancies (S v ) are beneficial to CO 2 adsorption and activation while promoting the stabilization of the key *COOH intermediate, thereby favoring the CO 2 reduction reaction. Moreover, oxygen vacancies (O v ) promote charge redistribution and facilitate charge transfer across the heterojunction interface onto CuS-S v . In-situ diffuse reflectance infrared Fourier transform spectroscopy and Gibbs free energy (ΔG) calculations clarify the reaction pathway, showing that the synergistic interaction of sulfur and oxygen vacancies efficiently decreased the energy barrier for *CO formation by reinforcing the interaction between *COOH intermediates and the catalyst surface. This study highlights a synergistic strategy combining defect engineering and S-scheme heterojunction design to achieve highly selective and efficient photocatalytic CO 2 to CO conversion. The deliberate introduction of sulfur/oxygen dual vacancies induces electron redistribution within the CuS-S v /NiTiO 3 -O v S-scheme heterostructure, concentrating electrons Cu sites and localizing charge on Ni. The built-in electric field drives interfacial transfer, enriching Cu centers that enhance C O activation and accelerate key intermediate formation. Download: Download high-res image (152KB) Download: Download full-size image
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MICROCHIMICA ACTA
·
2026
·Vol. 193
·期 9
·649
·
IF 5.4
Cai Chuangui,Lin Zhen,Yao Wensong,Lian Shan,Huang Kaiyuan,Deng Haohua,Lin Xinhua,Chen Wei
Arginine surface-engineered 6-aza-2-thiothymine gold nanoclusters (Arg/ATT-AuNCs) via host-guest assembly were synthesized which exhibit exceptional catalytic activity and intense photoluminescence. Arg/ATT-AuNCs enhanced the CL intensity from NaIO 4 -H 2 O 2 system by 1200-fold. The CL mechanistic studies revealed that Arg/ATT-AuNCs not only accelerated decay of H 2 O 2 to form reactive oxygen species, but also acted as efficient energy acceptors of singlet oxygen ( 1 O 2 ) via a CL resonance energy transfer (CRET) pathway. It was observed that doxorubicin (DOX) quenches the CL signal through an inner filter effect that disrupts the CRET process. Based on this, a straightforward, rapid, and highly sensitive biosensor has been developed for the detection of DOX in human serum samples, achieving a low detection limit of 0.029 µM. The biosensor was applied to DOX determination in human serum samples with recoveries ranging from 91.1 to 106.2%. This study not only provides a new method for the detection of DOX, but also broadens the application scope of AuNCs in the field of CL. Graphical
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ADVANCED FUNCTIONAL MATERIALS
·
2026
·
IF 19.9
Shuxia Wei,Xuejun Xu,Zongjie Su,Hongyi Lu,Yue Liu,Han Xu,Qianqian Gao,Yunfeng Wang,Ming Li,Tianyu Xing,Siyu Wang,Haoran Li,Li Wu,Yi Zhang
The open-circuit voltage ( V OC ) deficit remains a primary bottleneck hindering the efficiency of solution-processed Cu(In,Ga)(S,Se) 2 (CIGSSe) solar cells, largely due to the uncontrolled elemental diffusion during high-temperature selenization that prevents the formation of a beneficial bandgap gradient. Here, we propose a novel and highly effective low-temperature surface treatment strategy to overcome this long-standing challenge. By spin-coating a gallium-thiourea complex solution onto the pre-fabricated CIGSSe absorber, we construct a strategic Cu-poor, Ga-rich surface layer. Such design widens the surface bandgap, leading to an optimized band alignment at the CIGSSe/CdS heterojunction with a reduced conduction band offset (0.15 eV) and an enlarged valence band offset (1.13 eV). This synergistic effect drastically suppresses interface recombination. As a consequence, we achieve a champion device with a V OC of 0.692 V—the highest value reported to date for solution-processed CIGSSe—and a power conversion efficiency of 16.65% (17.93% with an MgF 2 anti-reflection layer). This work presents a simple yet powerful pathway for targeted front interface engineering, paving the way for high-efficiency, low-cost chalcopyrite photovoltaics.
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CHEMICAL ENGINEERING JOURNAL
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2026
·
IF 12.5
Chenda Wei,Shixin Huang,Wei Liu,Hailong Lin,Zhicheng Wen,Chunjin Hang,Rong An
Template-guided topotactic transformation builds an ordered 2D/1D Bi 2 O 2 S/Bi 2 S 3 . • Bi 2 O 2 S/Bi 2 S 3 exhibited excellent sensitivity and a fast response to NO under high humidity. • The sensing mechanism was systematically studied at atomic and electronic scales. • Exhaled NO monitoring potential was demonstrated under breath-relevant conditions. Exhaled nitric oxide (NO) is a clinically relevant noninvasive breath biomarker associated with asthma diagnosis and management, yet its reliable detection remains hindered by the high humidity of human breath. Here, we develop a humidity-enhanced sensing strategy through template-guided topotactic transformation. The resulting hierarchically ordered 2D/1D Bi 2 O 2 S/Bi 2 S 3 (BOS/BS) heterostructure features an open nanoarchitecture, facilitating rapid gas transport and exposing active sites. The optimized BOS/BS sensor delivers a response of 37 to 1 ppm NO at room temperature under 90% RH, with response/recovery times of 9/33 s and a detection limit of 25 ppb. The response is nearly 12 times that of the single-phase BS sensor and 4 times that of the less ordered BOS/BS sensor Rather than excluding moisture, the BOS/BS heterostructure integrates interfacial charge redistribution with humidity-induced surface hydroxylation to promote NO adsorption and conversion. This work establishes a topotactic route to hierarchically ordered heterostructures for room-temperature NO sensing under high humidity and offers a materials-design strategy for breath-relevant NO sensing under moisture-rich conditions. Download: Download high-res image (165KB) Download: Download full-size image
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JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2026
·
IF 9.2
Lu Zeng,Xuexia Guo,Jiahao Sun,Wenbin Huang,Huinan Zhao,Lingling Hu,Shuanghong Tian,Chun He
In Fenton-like processes, achieving rapid and efficient redox cycling of metal active centers remains a challenge. This study presents an innovative strategy that harnesses the mechanical energy of water flow to drive the redox cycling of metal active centers. Herein, Fe 3 O 4 /MoS 2 heterojunction with interfacial Mo-S-Fe bridge bonds was constructed via a one-step hydrothermal method. Under the stimulation induced by water-flow mechanical, the piezoelectric effect of MoS 2 generates charge carriers, which are rapidly directed to Fe active sites through the Mo-S-Fe bonds. This process significantly accelerates the Fe(III)/Fe(II) cycle and enhances H 2 O 2 activation, achieving 93.8% removal of sulfamethoxazole (SMX) within 60 min under water flow stimulation. The composite exhibits robust performance across a broad pH range (3.0-10.7) and in the presence of humic acid (HA) and coexisting anions, demonstrating its strong environmental adaptability. Spectroscopic evidence confirmed the formation of Mo-S-Fe bonds at the heterojunction interface. Mechanistic studies further revealed that the structure improves charge separation, promotes rapid electron transfer from MoS 2 to Fe sites, and strengthens H 2 O 2 adsorption, thereby synergistically boosting reactive oxygen species (ROSs) generation and the overall catalytic efficiency. This study proposes an innovative strategy that exploits mechanical forces generated by water flow to drive rapid redox cycling of active metal centers in Fenton-like reactions.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
·
IF 9.1
Zhu Meng,Yifeng Cheng,Jiale Xu,Jiani Zhu,Juntao Tang,Shuang Song,Feilong Dong
Hydraulic disturbance during sand-filter backwashing can release retained micropollutants, yet the same disturbance represents an underused source of mechanical energy. Here, a hydraulic driven MoS 2 /peracetic acid (PAA) piezocatalytic system was developed for the degradation of atrazine (ATZ). The MoS 2 /PAA system exhibited substantially higher reactivity than the PAA, MoS 2 /H 2 O 2 , and MoS 2 /PMS systems, indicating a strong synergistic interaction under hydraulic conditions. Increasing the hydraulic gradient further enhanced ATZ degradation. Mechanistic investigations revealed that hydraulic stimulation induced piezoelectric polarization of MoS 2 , facilitating charge separation and activating PAA via a direct electron-transfer pathway. As a result, multiple reactive species were generated, including •OH, R-O•, and 1 O 2 , with 1 O 2 playing a dominant role. Transformation pathway analysis indicated that ATZ degradation proceeded mainly through alkyl hydroxylation, dechlorination, and dealkylation. Although background water constituents inhibited degradation to varying extents, the system maintained good stability with low Mo leaching. Toxicity prediction further suggested an overall decrease in ecotoxicity during degradation. Unlike conventional piezocatalytic processes driven by ultrasound or dedicated mechanical devices, this system directly utilizes the hydraulic disturbance generated during sand-filter backwashing. These findings demonstrate a self-powered strategy for efficient and environmentally relevant removal of persistent organic pollutants.
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