CHEMICAL ENGINEERING JOURNAL
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2026
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IF 12.5
Xiyue Xue,Yanpeng Chen,Yuxin Xiao,Saidi Wang,Hongjie Zhang,Jin Wang,Wen-Hui Zhang
This study pioneers a sustainable “waste-to-wealth” strategy for fabricating a high-performance, pH-universal Fenton-like catalyst (FeCu 2 @BC T4 ) through the one-step co-pyrolysis of acid-precipitated black liquor (APBL) and Fenton sludge with a copper precursor. The innovation lies in the precise engineering of a Fe 0 /Fe 3 O 4 heterojunction synergistically coupled with Cu 0 nanoparticles on a functional APBL-derived biochar. By tuning the Cu/Fe mass ratio and pyrolysis time, the phase composition and electron-transfer properties were optimized. The resulting catalyst exhibits exceptional activity and stability across a broad pH range (3–9), achieving >92.3% methylene blue degradation within 60 min, and demonstrates superior removal efficiency toward various cationic dyes (rhodamine B, crystal violet, malachite green) and an anionic dye (methyl orange). Mechanistic investigations reveal a clear pH-governed transition of reactive oxygen species (ROS) pathways: under acidic conditions (pH 3), •OH-dominated homogeneous–heterogeneous catalysis prevails; under neutral conditions, the system shifts to a heterogeneous process driven by synergistic •OH/ 1 O 2 oxidation. This unique ROS switch is sustained by efficient electron mediation from the biochar matrix, coupled with robust electron supply and transfer enabled by the Fe 0 /Fe 3 O 4 heterojunction and Fe Cu galvanic coupling. This work provides a novel paradigm for converting industrial solid wastes into advanced catalytic materials with a well-elucidated mechanism, effectively overcoming the critical pH limitation of conventional Fenton technologies and showing broad application prospects for organic wastewater remediation.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 2
·122002
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IF 7.5
Qian Zhang,Shiyun Xu,Qingjun Fan,Jiaojiao Zhang,Xiaofeng Zhou,Tianran Sheng,Fuying Hao,Liangquan Sheng,Zhaodi Liu,Huajie Xu
Lattice strain is commonly acknowledged as an effective strategy for tuning the catalytic activity of transition metals, yet its direct impact on Fenton-like reactions remains not fully understood. Herein, we introduce compressive strain into CoMn 2 O 4 via thermal expansion effects in conjunction with a component regulation strategy to enhance peroxymonosulfate (PMS)-based Fenton-like activation. Structural analysis reveals that the compressively strained features enhance metal-oxygen bond coupling and induces the formation of a substantial amount of oxygen vacancies, which promote PMS adsorption and interfacial charge transfer. The obtained CoMn 2 O 4 (2:1)/PMS system demonstrates efficient and stable removal of organic pollutants via dominant nonradical pathways ( 1 O 2 ), and the reaction kinetics was enhanced from 0.078 min −1 to 0.264 min −1 , and the removal rate for sulfadiazine (SD) was as high as 99.8% within 30 min after five cycles. Furthermore, the remarkable feasibility of the CoMn 2 O 4 (2:1)/PMS system for practical wastewater treatment in real river water and pharmaceutical effluents was demonstrated, particularly through the development of a catalytic membrane filtration system and an in-situ floating water treatment device. This study offers new insights into the design of high-performance PMS activation catalysts via lattice strain engineering.
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EUROPEAN POLYMER JOURNAL
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2026
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IF 6.8
Zihan Wei,Yuxin Feng,Zijing Mei,Yidong Zhang,Rukuan Liu,Sisi Liu,Airong Xu,Jin-Feng Dai
A novel highly efficient xanthan gum biomass adsorbent XG/PEI/PEGDE (xanthan gum/polyethyleneimine/polyethylene glycol diglycidyl ether), demonstrating its remarkable efficacy in eliminating twelve water contaminants including ten dyes, one herbicide and Cu(II) ion, was constructed through a simple one-pot approach under mild conditions. Systematic investigations revealed that the contaminants adsorptions by XG/PEI/PEGDE were apparently affected by adsorbent dosage, solution pH, temperature, contact time and initial concentration. The XG/PEI/PEGDE demonstrated its exceptional adsorption capacities ( q e 2,4-D = 221 mg g −1 , q e CR = 3820 mg g −1 , q e AB = 1984 mg g −1 at removal efficiencies of approximately 90%) and excellent reusability (minimal performance loss after six cycles), remarkably outperforming most reported xanthan gum adsorbents. Further, one thermodynamic, four isothermal and four kinetic models were utilized to explore the contaminants adsorption performances by XG/PEI/PEGDE. Meanwhile, how common ions Na + , K + , Cl − and HCO 3 − impacted the contaminants adsorptions were also assessed. The investigations from various characterization techniques demonstrated that the contaminants adsorptions by XG/PEI/PEGDE mainly depend on the hydrogen bond along with electrostatic interactions of XG/PEI/PEGDE with the contaminants. Remarkably advantageous over the existing XG-based adsorption materials in view of adsorption performance, easy fabrication and a broad range of applicability, this study provides a new insight into designing highly efficient biomass-based adsorption materials.
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JOURNAL OF ENVIRONMENTAL MANAGEMENT
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2026
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IF 9.2
Shanshan Feng,Ke Liu,Donghui Li,Lixiang Shi,Wenqi Nie,Shiduo Hao,Yunpu Zhai,Yonggang Liu
The photo-Fenton method presents a promising approach for wastewater treatment, yet it faces several significant challenges, including the continuous supply of H 2 O 2 , slow mass transfer rates and a limited operational pH range. In this context, we describe the successful preparation of a novel catalyst: n-p type graphitic carbon nitride nanosheets engineered with nitrogen vacancies and decorated with Cu 2 O-T, which is characterized by controllable crystal planes. This photo-self-Fenton-like catalyst is designed for the in-situ production and activation of H 2 O 2 . The optimized catalyst, CNC-20, demonstrates remarkable efficiency in degrading various organic pollutants, showcasing high cyclic stability and wide applicability. Notably, CNC-20 achieves a degradation rate of 98.8% for tetracycline hydrochloride within 60 min, with a reaction rate constant 4.2 times greater than that of pristine carbon nitride. Characterization studies illustrate that the construction of ultrathin carbon nitride nanosheets featuring nitrogen vacancies, combined with the co-exposure of Cu 2 O-T crystalline planes (111) and (100), significantly enhances carrier separation efficiency, thereby facilitating effective H 2 O 2 generation. Furthermore, Cu 2 O-T plays a crucial role in the direct capture of in-situ generated H 2 O 2 , rapidly activating it to generate abundant ·OH, which effectively mitigates the issue of slow mass transfer associated with H 2 O 2 . This study presents a novel approach integrating in-situ H 2 O 2 generation and activation, effectively overcoming the inherent limitations of traditional photo-Fenton reactions and providing a promising strategy for pollutant degradation in wastewater treatment systems.
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Journal of Energy Storage
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2026
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IF 10.7
Ziqiang Zhang,Tiancheng Liu,Yuanming Wang,Fengquan She,Yulong Jiao,Xue Wang,Guohui Yuan
While aqueous zinc-ion batteries (AZIBs) show great promise for safe energy storage, their practical implementation is impeded by performance issues at the Zn anode, such as parasitic side reactions, hydrogen evolution, and dendritic growth. Here, we report a fluorine-doped carbon nanofiber (FCNF) 3D coating that provides dynamic, durable protection for the zinc anode. The coating's 3D architecture, intrinsic negative charge, and hydrophobicity synergistically guide uniform zinc deposition while inhibiting parasitic reactions. More importantly, a ‘sustained supply and dynamic formation’ mechanism is realized, where C F bonds within the FCNF dynamically cleave during cycling to enable the continuous in-situ formation of a ZnF 2 layer that persistently suppresses side reactions. Consequently, symmetric cells employing FCNF-protected anodes demonstrate an operational lifetime exceeding 3400 h at a high areal capacity of 2.5 mAh cm −2 . Moreover, when assembled with an ammonium vanadate cathode, the full cell stably cycles for over 1000 cycles at 5 A g −1 , maintaining 82% of its initial capacity. This work introduces an approach that synergistically combines physical guidance and dynamic chemical repair, offering a robust solution for developing highly stable and safe metal batteries with aqueous electrolytes.
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Sustainable Materials and Technologies
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2026
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IF 9.7
Zongrui Huang,Jinmei He,Ying Zhang,Pu Feng,Zijie Xi,Yuanyuan Wang,Xinyi Tian,Lin Liu,Chao Wang,Mengnan Qu
Currently, the solar interface evaporation technology (SIE) has become an important way to alleviate the shortage of fresh water resources. However, the actual desalination process is complex and faces challenges such as high concentration of salts and organic pollutants. Herein, this study developed a salt deposition resistant solar evaporator (SPBP/PVA) based on the Hofmeister effect for high concentration brine evaporation. By integrating photothermal materials of polypyrrole (PPy) and photocatalyst bismuth vanadate (BiVO 4 ) into the polyurethane sponge modified with appropriate concentration of sodium alginate (1% SA), this system achieves a multifunctional coupling of efficient evaporation, photocatalytic degradation of organic pollutants, and concentration gradient power generation. This evaporator exhibits excellent salt deposition resistance and stable evaporation rate in high-concentration salt solutions (15% NaCl, 2.95 kg m −2 h −1 ). The mechanism is attributed to the enhancement of hydration due to Cl − -induced Hofmeister effect, reduction of evaporation enthalpy, and promotion of salt reflux. During actual outdoor tests in seawater, the evaporator demonstrated highly efficient evaporation performance (with an average evaporation rate of approximately 2.97 kg m −2 h −1 ). At the same time, it can photocatalytically degrade volatile organic contaminants, prevent secondary pollution of fresh water, and realize concentration gradient power generation (voltage of 107.6 mV, current of 14.0 μA) through the salt concentration gradient at the evaporation interface. The multifunctional salt-resistant deposition evaporator prepared in this study provides a new solution for balancing rapid evaporation and the challenges it brings regarding salt deposition.
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JOURNAL OF MEMBRANE SCIENCE
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2026
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IF 8.8
Zhixin Su,Miaojia Pan,Wenyong Jiang,Hongyuan Zhang,Minhua Liu,Yuhan Zhao,Zhaoxu Wang,Saisai Lin,Hu Zhou,Tiefan Huang
MXene displays exceptional promise for water purification, owing to its versatile surface chemistry and favorable physicochemical properties. However, its separation performance is substantially hindered by intercalation-induced swelling. Here, inspired by the “brick-and-mortar” structure of nacre, nacre-like nanocomposite membranes are developed through the co-assembly of MXene nanosheets (bricks) and polyetherimide (mortar). Leveraging MXene's unique properties, polyetherimide serves three pivotal functions: it acts as "spacer", precisely defines the interlayer spacing at ∼13.84 Å; it functions as "regulator", abundant hydrophobic groups regulate the microenvironment within the nanochannels; and it serves as "stabilizer", establishes robust non-covalent interactions with the MXene basal planes, thereby reinforcing channel integrity. Consequently, the resulting membranes exhibit outstanding stability in aqueous media, achieving a swelling ratio as low as 1.56%. Remarkably, after 1080 h of static water immersion, the membrane retained a relatively stable interlayer structure and separation performance, demonstrating prolonged aqueous stability. This bioinspired strategy provides critical insights for the rational design of structurally stable two-dimensional membranes.
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124645
·
IF 7.5
Xingwang Xu,Jiayi Liu,Bin Lin,Tianyi Sui,Jinming Li,Bingrui Lv,Pengcheng Zhao,Hetian Hou,Cong Chen,Hualong Zhang,Yuhao Zhang,Jinhua Wei,Haoji Wang,Mingqiang Tang
Photocatalysis assisted chemical mechanical polishing is considered an effective method for achieving atomic-scale flatness on reaction-sintered silicon carbide (RS-SiC) surfaces. However, the recombination of photogenerated carriers severely limits its further development. Meanwhile, photoelectric and other multi-energy field catalysis assisted chemical mechanical polishing can solve the above problems, but it will significantly increase energy consumption and pollution, but it will significantly increase energy consumption and pollution. In this study, t-BaTiO 3 was regarded as catalyst, and a piezoelectric-photocatalysis assisted chemical mechanical cost-effective and efficient polishing technology was proposed. Polishing pressure and shear force induce a built-in electric field in t-BaTiO 3 , thereby inhibiting the recombination of photogenerated carriers. The experimental results showed that, compared with photocatalysis oxidation, pressure-induced piezoelectric-photocatalysis treatment increased the oxygen content of the RS-SiC surface by 11.77%, reduced the surface hardness by 10.45 GPa, and yielded a polished surface roughness as low as 0.18 nm. More importantly, compared with the other methods, this approach reduced both cost and energy consumption by 50%. These findings confirm that the proposed method is an efficient and environmentally friendly polishing technology with substantial potential to advance chemical mechanical polishing.
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PHYSICA B-CONDENSED MATTER
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2026
·
IF 3.2
Chang Feng,Qian Jing,Li Tang,Jiangping Jing,Ruiling Wang,Zhuoyuan Chen
S-C 3 N 4 /Mg(OH) 2 heterojunction photocatalyst was synthesized via a simple ball-milling method. • S-C 3 N 4 /Mg(OH) 2 exhibited significantly enhanced photocatalytic performance. • S-C 3 N 4 /Mg(OH) 2 demonstrated stable photocatalytic activity in complex ionic environments. • The photocatalytic reaction mechanism of S-C 3 N 4 /Mg(OH) 2 was proposed in this work. This work fabricated a type II 2D/2D S-doped graphitic carbon nitride/magnesium hydroxide (S-C 3 N 4 /Mg(OH) 2 ) heterojunction photocatalyst via a straightforward ball-milling method. The Mg(OH) 2 nanosheets are uniformly dispersed on the surface of S-C 3 N 4 , forming a well-developed heterojunction structure. The S-C 3 N 4 /Mg(OH) 2 composite material was employed as a photocatalyst and exhibited high efficiency in degrading tetracycline and methyl orange in an aqueous environment. The optimized S-C 3 N 4 /Mg(OH) 2 -30 composite demonstrated superior photocatalytic performance, achieving 100% removal of tetracycline within 45 min and 93% degradation of methyl orange within 60 min. Its performance was significantly superior to that of the single-component photocatalysts, and it exhibited stable photocatalytic activity even in complex ionic environments. The formation of Type-II heterojunction between S-C 3 N 4 and Mg(OH) 2 facilitates charge separation/migration and thus significantly enhanced pollutant removal efficiency. The S-C 3 N 4 /Mg(OH) 2 composite material fabricated in this work shows great promise for practical wastewater treatment applications. The S-C 3 N 4 /Mg(OH) 2 heterojunction photocatalyst was successfully fabricated. It not only exhibits outstanding photocatalytic performance in degrading organic pollutants but also maintains stable photocatalytic degradation ability even under complex ionic conditions. Download: Download high-res image (368KB) Download: Download full-size image
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Journal of Environmental Chemical Engineering
·
2026
·Vol. 14
·期 5
·124716
·
IF 7.5
Rui Yang,Chaoting Jiang,Wangbo Wang,Xianshu Zhou,Fangshu Xie,Mingming Ta,Tuo Wang,Haifang Cai,Juan Guo,Weihuang Zhu
Fabricating a high-performance catalyst for peroxymonosulfate (PMS) activation via efficient nonradical pathways remains a crucial challenge. Herein, we developed a new strategy to fabricate an efficient PMS activator (FeCu@NBC 700 ) with synergistic Fe-Cu dual sites encapsulated in nitrogen (N) self-doped biochar derived from waste soybean dregs. The FeCu@NBC 700 catalyst achieved 98.55% tetracycline (TC) removal and 90.56% PMS utilization within 60 min, with excellent stability across varying pH conditions, realistic water matrices, and continuous-flow operation. Characterizations confirmed that the N-rich carbon matrix (NBC 700 ) facilitated the in-situ formations, enhanced stabilizations, and full dispersions of low-valence Fe(0)/Fe(II) and Cu(0)/Cu(I) species, which participated as main active components for PMS activation. Density Functional Theory (DFT) calculations on the Fe-Cu bimetallic system showed electronic coupling converges their d -band centers, optimizes PMS adsorption energy (-4.45 eV), and promotes multi-electron transfer (1.45 e⁻). Mechanistic studies, including quenching tests, electron paramagnetic resonance (EPR) tests, galvanic oxidation process (GOP), and methyl phenyl sulfoxide (PMSO) probing experiments, demonstrated that TC degradation proceeded via a multiple nonradical pathway dominated by singlet oxygen (¹O 2 ) from superoxide ( O • − 2 ) disproportionation, supplemented by an electron transfer pathway (ETP) and participation of high-valent metal species (HMS). Ecological Structure-Activity Relationship (ECOSAR) analysis and seed germination tests confirmed significant reductions in the toxicity of degradation intermediates. This work provides an insight into bimetallic synergy for multi-pathway nonradical oxidation applied in PMS-based Fenton-like reactions and a waste-valorization design paradigm.
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ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Wang Xihao,Huang Jingting,Kong Chuipin,Li Peiyan,Wang Kaixin,Zhuang Yijia,Li Sijie,Wang Li,Zhang Boqing,Li Zhengyong,Zhou Changchun
Diabetic wound healingAC: remains challenging due to persistent inflammation, oxidative stress, and impaired macrophage polarization. Herein, a multifunctional hydrogel dressing was constructed from carboxymethyl chitosan and oxidized dextran as the dynamic network, incorporating CeO2 nanozymes for early anti-inflammatory and antioxidant effects and PLGA microspheres loaded with astragaloside IV for sustained pro-regeneration. Via Schiff base crosslinking, this hydrogel self-assembled rapidly at room temperature and adhered tightly to tissue. In vitro, the hydrogel exhibited excellent biocompatibility, potent antioxidant and anti-inflammatory activities, and promoted endothelial cell migration and angiogenesis. In a diabetic rat full-thickness wound model, this hydrogel dressing effectively reduced local inflammation, drove macrophage polarization toward the M2 phenotype, and enhanced neovascularization to accelerate wound closure. RNA sequencing further revealed that inflammatory pathways, including TNF and IL-17 signaling, were suppressed while tissue regeneration programs were activated. This stepwise therapeutic strategy offers a promising alternative for diabetic wound repair.
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Materials
·
2026
·Vol. 19
·期 14
·3069
·
IF 3.7
Bo Ma,Guoqiang Huang,Wenwen Hu,Wenxue An,Gailan Ma,Maohui Li,Youjun Lu
The degradation of organic pollutants through photocatalysis is currently a major research focus. Core–shell heterostructures of metal semiconductors have been widely recognized as an effective strategy for enhancing photocatalytic performance, particularly when alloy nanoparticles are incorporated due to their unique electronic and catalytic properties. However, conventional synthetic approaches typically rely on high-temperature and high-pressure conditions, which often induce undesirable particle overgrowth and aggregation. Herein, AuPt bimetallic alloy nanoparticles were successfully fabricated via two successive in situ redox processes under room-temperature and ambient-pressure conditions, which were in situ integrated with Cu2O to form multilevel core–shell composite particles. Structurally, an octahedral Cu2O crystal serves as the inner core (denoted as Cu2O(O)), sequentially coated with a Cu2O nanoparticle (denoted as Cu2O(P)) interlayer and a AuPt alloy nanoparticle shell. Functionally, the enhanced photocatalytic activity of Cu2O(O)@Cu2O(P)@AuPt was proven to be attributed to a dual function of AuPt, which includes an adsorption-induced polarized interface and an efficient charge-transfer mediator with the ohmic contact. This work demonstrates a mild and versatile synthetic strategy for constructing semiconductor–alloy heterostructures, offering valuable insights into the rational design of highly efficient and stable photocatalysts.
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