GREEN CHEMISTRY
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2026
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IF 10.6
Huaimin Tian,Chaoya Han,Zekai Xu,Chao Yao,Xiazhang Li
Coupling solar-driven CO₂ reduction with the valorization of waste biomass-derived platform chemicals represents a pivotal strategy toward achieving carbon neutrality and sustainable resource utilization. However, the high dissociation energy of the C=O bond in CO 2 and the complex side reactions involved in biomass conversion often result in low conversion efficiency and poor product selectivity. To address these challenges, herein, a biochar/pyrite nanocomposite was fabricated via a facile mechanical ball-milling method using natural pyrite and biochar derived from waste corn stover. During the ball-milling process, intimate interfacial contact is established between the two components, leading to the formation of a high-low heterojunction that effectively promotes the spatial separation and interfacial migration of photogenerated charge carriers. The optimized 30 wt% biochar/pyrite sample exhibits outstanding photocatalytic performance under simulated visible light irradiation, achieving a CO yield of 320.7 μmol•g -1 •h -1 with a selectivity of 90.7%, together with a 5-hydroxymethylfurfural conversion of 86.4% and a high 2,5diformylfuran selectivity of 93.2%. The incorporation of biochar not only enhances the adsorption capacity for the reactants but also substantially boosts the photocatalytic activity of pyrite through facilitated interfacial charge transfer. This work provides a new strategy for constructing efficient photocatalytic systems based on natural minerals and waste biomass, enabling the synergistic coupling of CO 2 reduction and biomass valorization.
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Analytical Methods
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2026
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IF 3
Yu Liu,Jingjing Fang,Liangxiao Jiang,Hengchao Yang,Cheng Yao,Chan Song
Herein, carbon and nitrogen co-doped CuO nanozymes (C–N/CuO) were constructed via direct pyrolysis of copper(II) phthalocyanine (CuPc) as a single-source precursor. This approach enables the simultaneous incorporation of Cu, C, and N without additional dopants, offering a simple route to tune the electronic structure of CuO. The sample obtained at 400 °C (C–N/CuO-400) exhibits enhanced peroxidase-like activity, which is attributed to C–N incorporation and reduced particle size. In the presence of H2O2, C–N/CuO-400 catalyzes the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) by reactive oxygen species (˙OH and 1O2). Tetracycline (TC) suppresses this process, resulting in a decreased color signal. Based on this effect, a colorimetric and smartphone-assisted method was developed for TC detection, showing a linear range of 1–40 µM with detection limits of 0.15 µM and 0.38 µM. This work provides a simple and effective strategy for nanozyme-based sensing.
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SOLID STATE SCIENCES
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2026
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IF 3.6
Chi Qu,Chenqiu Dai,Kaiyin Shi,Ji Zhu,Fangyuan Liu,Xiuwen Zhu,Cheng Guo,Jianqiang Wang
A novel ferulic acid-tryptophan single-bridge-linked organosilicon precursor (FA-Trp-OSP) was synthesized via a multi-step reaction. • A ferulic acid-tryptophan bridged periodic mesoporous organosilica (FA-Trp-PMS) was synthesized via a sol-gel strategy for the first time. • The incorporation of dual antioxidant functional groups significantly enhances the radical scavenging performance, showing efficient and selective activity toward ABTS.• + , •OH and O 2 • - radicals. • A synergistic antioxidant mechanism based on hydrogen atom transfer and electron transfer pathways is proposed. Oxidative stress caused by excessive free radicals is a major contributor to various diseases. To develop novel antioxidant, a ferulic acid-tryptophan organosilane precursor (FA-Trp-OSP) was synthesized through a multi-step organic synthesis process. Subsequently, it was co-condensed with tetraethyl orthosilicate (TEOS) to fabricate a functionalized mesoporous silica material (FA-Trp-PMS). An optimal precursor loading of 30% maintained a well-ordered mesoporous structure while maximizing the density of functional groups. FA-Trp-PMS displayed superior radical scavenging activity against ABTS• + , •OH, and O 2 • - , attaining scavenging rates of 82%, 92%, and 49% at concentrations of 1.5, 2.0, and 5.0 mg/mL, respectively. The material significantly outperformed the corresponding single-component systems and physical mixture system, exhibiting enhanced antioxidant performance that may be associated with cooperative interactions between ferulic acid and tryptophan functionalities. FA-Trp-PMS also exhibited rapid kinetics (reaching equilibrium within 3-10 min) and good stability over a temperature range of 5-40 °C and within the investigated pH range. This work provides a promising strategy for the development of high-performance antioxidant materials with multi-radical scavenging activity and good environmental stability for applications in food preservation, cosmetic stabilization, and biomedicine. Download: Download high-res image (271KB) Download: Download full-size image
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INORGANIC CHEMISTRY
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2026
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IF 4.6
Xue-Rong Dou,Xin-Yue Zheng,Yun-Nan Gong,Di-Chang Zhong,Tong-Bu Lu
The performance of photocatalytic CO2 reduction is highly dependent on the electronic structures of active sites, while achieving delicate regulation of electronic states to enhance the catalytic performance remains challenging. Herein, we designed and synthesized four salen cobalt complexes with different functional groups in organic ligands (Co-X, X = –NO2, −COOMe, -tBu, and -OMe) for photocatalytic CO2 reduction. Impressively, by changing the -X groups of the organic ligands, the electronic structures of Co ions in Co-X can be regulated, which results in obviously different photocatalytic performance for the reduction of CO2 to CO, following the -X group sequence of –NO2 > −COOMe > -tBu > -OMe. The optimized Co–NO2 with the strongest electron-withdrawing ability of the –NO2 group achieves the largest turnover number (TON) and turnover frequency (TOF) values of 5727 and 0.32 s–1, respectively, 4.5 times higher than those of the Co–OMe. Theoretical calculations reveal that the spin populations of Co in Co–NO2 are the largest among the four cobalt complexes, which is the most beneficial for absorbing and activating the CO2 molecule, thereby accounting for its highest photocatalytic activity.
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BIOMASS & BIOENERGY
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2026
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IF 7
Xiao Yang,Li Qiu,Kehui Cen,Xiaoran Li,Dengyu Chen
Co-pyrolysis of biomass and plastic enables simultaneous production of biochar, bio-oil, and gaseous products and also offers a pathway for waste recycling and valorization. This research investigates the synergistic effects of co-pyrolysis of cellulose and low-density polyethylene (LDPE) by TG-FTIR and a fixed bed reactor. Kinetic analyses by Flynn-Wall-Ozawa (FWO) and Kissinger-Akahira-Sunose (KAS) models showed that the average activation energy ( E a ) for pyrolysis of cellulose and LDPE individually was 184.1 and 267.4 kJ/mol, respectively, whereas that of 1:1 cellulose/LDPE mixture decreased to 150.4 kJ/mol. Pyrolysis experiment showed that co-pyrolysis suppressed biochar formation while enhancing yields of bio-oil and gaseous products. Co-pyrolysis enriched carbon and removed oxygen in biochar, resulting in maximum graphitization degree and higher heating value (HHV) of 31.51 MJ/kg at 700 °C. Additionally, co-pyrolysis decreased the relative content of light oxygenated compounds in bio-oil. The inhibitory effect of co-pyrolysis on aldehydes, ketones, and acids was maximum at 600 °C. Co-pyrolysis enhanced CH 4 and H 2 formation and suppressed CO 2 and CO. At 700 °C, CH 4 and H 2 proportions peaked to 19.3 vol% and 13.1 vol%, respectively, during co-pyrolysis. This research provides fundamental insights into the synergistic mechanisms of biomass and plastic co-pyrolysis for polygeneration.
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Polymers
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2026
·Vol. 18
·期 7
·872
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IF 5.8
Lingxiao Peng,Wenjie Si,Yuhui He,Nanying Ning,Jianfeng Wang
Dielectric elastomer actuators (DEAs) are attracting much attention as candidates for next-generation flexible actuation. Among various DE matrices, polyacrylate rubber (AR) is especially promising owing to their intrinsically high dielectric constant (εr) and good mechanical performance. In particular, its mechanical behavior is close to that of porcine bladder tissue, making it a potentially good material for soft biomedical actuators for artificial bladder constructs. To achieve high actuated strain, which requires highεr, high breakdown strength, and low elastic modulus, an AR DE composite filled with silane-functionalized TiO2was fabricated, exhibiting good electromechanical performance enabled by strengthened interfacial polarization. To improve compatibility between TiO2and AR matrix, TiO2was preferentially modified with a silane coupling agent (CA) that features a double bond as its functional group, which can be introduced on TiO2surface and participate in vulcanization with AR, thereby forming co-crosslinking bridges that strengthen interfacial bonding, improve filler dispersion, and increase interfacial polarizability within the matrix. As a result, at relatively low filler loadings, the composite exhibits a significantly increasedεr, while maintaining low modulus, low dielectric loss and high elasticity. The 10 CA@TiO2/AR composite exhibits a maximal actuated strain of 7.9% at 31.9 kV/mm without pre-stretch, which is 1.48 times that of pure AR and 1.32 times that of the 10 TiO2/AR composite.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Enze Li,Yuhao Li,Qihao Wang,Lei Li,Weiping Xiao,Qi Wu,Lei Wang,Zexing Wu
Overcoming the sluggish water dissociation kinetics in alkaline media and seawater remains a critical challenge for scalable green hydrogen production, requiring the development of efficient water-splitting electrocatalysts. Here, we conducted an Ru-Co/TiO 2 catalyst, which features an oxygen-vacancy-rich titanium dioxide (TiO 2 ) support anchoring ruthenium (Ru) and cobalt (Co) species, for hydrogen evolution reaction (HER) in alkaline electrolytes. Comprehensive spectroscopic analyses reveal that the microwave-induced oxygen vacancies facilitate the effective anchoring and high dispersion of Ru-Co bimetallic sites while concurrently enhancing electronic interactions. This markedly reduces the kinetic barrier for water dissociation to adsorbed hydrogen intermediates and optimizes the hydrogen adsorption/desorption behavior, thereby synergistically boosting HER activity. Far surpassing its single-metal counterparts, the resulting Ru-Co/TiO 2 maintained stable operation for over 100 h, delivering remarkably low overpotentials at 10 mA cm −2 : 51 mV in 1.0 M KOH, 69 mV in alkaline seawater, and 293 mV in natural seawater. This work demonstrates general and scalable approaches that integrate support defect engineering with trace-level bimetallic modulation, providing valuable insights into the design of low-noble-metal, high-performance electrocatalysts for practical water and seawater electrolysis.
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MICROCHEMICAL JOURNAL
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2026
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IF 5.2
Pengfei Han,Li Tian,Guangping Ma,Wenzhuo Wang,Hanyue Jiang,Huiyuan Mao,Ruixin Li,Tengying Ma,Lan Mei
In this work, a dual-potential ratiometric electrochemiluminescence (RECL) sensor for the detection of tetracycline (TC) was constructed based on TiO 2 @g-C 3 N 4 (luminophore) and MWCNTs@Au NPs (promoter). The RECL signals were derived from the anodic peak (TiO 2 @g-C 3 N 4 –TPrA) and the cathodic peak (TiO 2 @g-C 3 N 4 –K 2 S 2 O 8 ). With the addition of TC, the anodic ECL signal remained unchanged and served as an internal reference, while the cathodic ECL signal decreased due to competitive co-reactant consumption. This ratiometric readout mitigates false-negative results commonly encountered in single-output ECL assays by correcting for nonspecific signal fluctuations. Under optimal conditions, a linear relationship was observed between the ratiometric signal (I a /I c ) and the logarithm of TC concentration (lgC TC ) from 1.0 × 10 −12 to 1.0 × 10 −8 mol L −1 . The linear equation was I a /I c = 1.056 + 0.057 lgC TC (R 2 = 0.997). The detection limit was 3.3 × 10 −13 mol L −1 (S/N = 3). The proposed sensor was successfully applied to detect TC in real samples.
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DIAMOND AND RELATED MATERIALS
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2026
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IF 5.2
Shihao Zhang,Feng Liu,Lei Ding,Jingjing Qi,Yuzheng Wang,Yuhan Wu,Laishi Li,Xudong Sun,Yusheng Wu
The persistent contamination of aquatic systems by tetracycline antibiotics necessitates the development of efficient and sustainable adsorbents. Herein, a one-step deep eutectic solvent (DES) strategy is developed for the synthesis of carbon/oxygen co-doped hexagonal boron nitride (BCNO) nanosheets, using a ternary DES (H 3 BO 3 /urea/guanidine hydrochloride) as an all-in-one precursor and self-templating medium. The resulting BCNO material exhibits an ultrahigh tetracycline adsorption capacity of 428.5 mg g −1 . In situ pyrolysis analysis combined with theoretical simulations reveals that the DES-guided process facilitates synergistic heteroatom doping and the formation of a hierarchically porous structure enriched with Lewis acid-base sites. The adsorption process follows a multilayer chemisorption mechanism, driven by the concerted contribution of π-π stacking, hydrogen bonding, and Lewis acid-base coordination. The material exhibits excellent regenerability, retaining >85% of its original adsorption efficiency after five consecutive cycles. This work not only presents a scalable and eco-friendly route to functional BN nanomaterials but also provides fundamental insights into the molecular-level design of high-performance adsorbents for environmental remediation.
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Biye Niu,Feixiang Gao,Taiping Fu,Xinrong Yan,Yufeng Liu,Yakun Guo,Maobing Shuai
The accumulation of hydrogen in confined environments presents significant safety hazards, highlighting the need for efficient hydrogen getters. Although the PtRu/CNFs-DEB hydrogen getter facilitates the synergistic hydrogenation of both alkynyl and phenyl groups in DEB under mild conditions, its effectiveness is substantially diminished by trace amounts of carbon monoxide (CO), which strongly adsorbs onto Pt active sites. This study introduces a Ru-based oxide barrier layer (RuO 2 ) onto PtRu/CNFs to construct a PtRu-RuO 2 /CNFs composite catalyst. The incorporation of the oxide layer increases the specific surface area from 19.73 to 122.43 m²/g, promotes electron transfer from RuO 2 to Pt, and induces a downshift in the Pt d -band center, consequently reducing the CO adsorption energy. In a H 2 atmosphere containing 500 ppm CO, the PtRu-RuO 2 /CNFs catalyst achieves 85.2% conversion of the alkynyl groups and 21.5% conversion of the phenyl groups in DEB after 10 h. In a 100-hour durability test, it maintains a hydrogen uptake capacity of 600 mL/g — 1.75 times higher than that of PtRu/CNFs — and removes 70% of ambient H 2 . Notably, this newly developed catalyst exhibits broad substrate compatibility, effectively facilitating the transformation of not only DEB but also a diverse array of other aromatic compounds—thereby underscoring its robust catalytic versatility. This study demonstrates that the oxide barrier strategy significantly enhances CO tolerance, hydrogenation efficiency, and long-term stability, providing a promising pathway toward high-performance hydrogen getters for practical applications.
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SENSORS AND ACTUATORS B-CHEMICAL
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2026
·
IF 8.3
Bingxi Feng,Zizheng Wang,Yuan Yao,Yonghui Deng,Jing Wei
Noble metal nanosensitizers such as Pt and Pd are widely employed to enhance the H 2 sensing performance of semiconductor metal oxide gas sensors owing to their superior capability for H 2 adsorption and dissociation; however, they exhibit poor resistance to CO, a gas that commonly coexists with H 2 , leading to cross-response and false alarms in real-world application scenarios. In this work, we design a wireless gas sensor based on Au nanocluster-functionalized SnO 2 nanosheets. The sensor exhibits exceptional sensitivity (43.2 ppm -1 ), a low detection limit (100 ppb), rapid response time (11 s), excellent selectivity, and strong anti-interference capability against CO. Notably, owing to their ultra-small particle size and high catalytic activity, the Au nanocluster-functionalized SnO 2 nanosheets show a response 51.1 and 1.6 times higher than that of pristine SnO 2 and conventional Au nanoparticle-functionalized SnO 2 nanosheets. Moreover, when CO at a concentration 60 times higher than H 2 is introduced into the H 2 stream, the sensor response changes by only 7.8%. Furthermore, a handheld detector is developed for hydrogen leak detection and early warning. This work presents an alternative strategy for the fabrication of high-performance H 2 sensors with superior CO resistance by employing gold nanoclusters as a sensitizer in place of conventional Pd-based materials.
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MICROCHEMICAL JOURNAL
·
2026
·
IF 5.2
Meng Yuan,Lingling Huang,Qi Zhang,Mingquan Huang,Baocai Xu,Liangyun Yu
Novel S-scheme heterojunction boosts light absorption/charge separation. • In-situ Co-Pi co-catalyst reduced electron-hole recombination. • Polypyrrole-MIP membrane ensures DIM recognition with maintained conductivity. • The sensor achieves ultra-sensitivity: LOD 0.83 fmol/L, 1.0 fmol/L-100 pmol/L range. • The new sensors demonstrated reliable DIM detection in real samples. An S-scheme TpPzda-COF@ZnIn 2 S 4 @Co-Pi core–shell hybrid was fabricated via in situ growth of a ZnIn₂S₄ nanoflower shell on a β-ketoenamine-linked TpPzda-COF core, followed by photodeposition of a cobalt-phosphate (Co-Pi) cocatalyst. The resulting hierarchical architecture facilitated efficient interfacial charge transfer and synergistic effects, leading to enhanced light absorption, charge separation, and catalytic activity. Based on this photoactive material, a molecularly imprinted photoelectrochemical (MIP-PEC) sensor was constructed through electropolymerization using pyrrole as the functional monomer and dimethoate (DIM) as the template. The imprinted cavities enabled selective recognition of DIM, regulating interfacial electron transfer and producing distinct photocurrent responses. Benefiting from the π-conjugated structure of TpPzda-COF, the visible-light activity of ZnIn 2 S 4 , and the hole-extraction capability of Co-Pi, the proposed sensor exhibited high sensitivity, good stability, and satisfactory reproducibility. An ultralow detection limit of 0.83 fmol·L −1 was achieved over a wide linear range of 1.0 fmol·L −1 to 100 pmol·L −1 . Furthermore, successful determination of DIM in real fruit and vegetable samples demonstrated the applicability of the sensor for food safety and environmental monitoring. Download: Download high-res image (95KB) Download: Download full-size image
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