Journal of Environmental Chemical Engineering
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2026
·Vol. 14
·期 2
·121708
·
IF 7.5
Liyang XIN,Jiahao ZHANG,Qian YANG,Liqiang QI
The treatment of high-chloride acidic industrial wastewater, such as that from wet flue gas desulfurization (WFGD) and metallurgical effluents, presents a significant environmental engineering challenge due to the high corrosivity of chloride and its interference with downstream processes. Bismuth oxide (Bi₂O₃)-based precipitation shows promise; however, it is hindered by severe surface passivation caused by BiOCl, which leads to self-limiting reactivity. In this study, we engineered a titanium-doped bismuth oxide (Bi₁₂TiO₂₀) photocatalyst that addresses this limitation through a synergistic mechanism of "adsorption–precipitation–photoregeneration." Under optimal dark conditions (pH = 0.1, [Cl⁻]₀ = 5000 mg/L, for 2 h), Bi₁₂TiO₂₀ achieved a chloride removal efficiency of 96.4 %, significantly exceeding that of pure Bi₂O₃, which was 64.4 %. The introduction of simulated solar irradiation at pH = 1.0 further enhanced the removal efficiency from 54.0 % to 67.2 %, demonstrating effective photo-enhancement. Comprehensive characterization techniques, including X-ray diffraction (XRD), scanning electron microscopy with energy-dispersive X-ray spectroscopy (SEM-EDS), X-ray photoelectron spectroscopy (XPS), and ultraviolet-visible-near-infrared (UV–Vis–NIR) spectroscopy, combined with kinetic modeling and electron localization function (ELF) calculations, revealed that Ti⁴⁺ serves as both a structural promoter—weakening Bi–O bonds to facilitate Bi³ ⁺ release—and a surface Lewis acid site that activates Cl⁻ adsorption. Importantly, photogenerated holes (h⁺) decompose the BiOCl passivation layer via the reaction BiOCl + 2 h⁺ → Bi³ ⁺ + ½O₂ + Cl₂↑, enabling in-situ regeneration of active interfaces and establishing a sustainable catalytic cycle. This work presents an efficient material for the initial bulk removal of chlorides, while also establishing a novel design paradigm for self-regenerative, energy-efficient water treatment technologies.
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高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 6
Mengwen Zhang,Fanyu Meng,Xiaoyu Chen,Na Cao,Lei Fan,Shoulei Yang
High-performance ceramic cutting tools require superior hardness and toughness under extreme temperatures; yet conventional sintering methods for Al 2 O 3 -Ti(C,N) composites often suffer from incomplete densification and grain coarsening. In this study, dynamic sinter forging (DSF) with oscillatory pressure amplitudes of 40 ± 40 MPa at 1600 °C is employed to regulate the densification behaviour and microstructural evolution of Al 2 O 3 -Ti(C,N) composites. The composite achieves a relative density above 99.9%, flexural strength of 1111 MPa, and hardness of 24.5 GPa at 15 Hz. A maximum fracture toughness of 5.44 MPa m 1/2 is obtained at 10 Hz. Microstructural observations reveal that moderate-frequency oscillation activate interfacial diffusion and stress-assisted plastic flow, promoting grain-boundary sliding and compact bonding to form a fine-grained and homogeneous structure. These results confirm that frequency-controlled DSF facilitates simultaneous enhancement of strength and toughness, providing a valid route for fabricating high-performance Al 2 O 3 -based cutting ceramics with optimized microstructural designs.
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JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
·
IF 9.6
HaoTian Wu,WenYu Luo,EnZhou Liu,Bing Wang,LinYu Jiao,Zhuo Li,XiaoXun Ma
The performance of photocatalysts is often limited by charge recombination and sluggish kinetics at heterojunction interfaces. This study develops a multi-strategy interfacial modulation approach by constructing Bi S covalent bonds at the BiVO 4 /Mn 0.5 Cd 0.5 S(MCS) interface to serve as electron transport “bridges”, while simultaneously filling sulfur vacancies (V S ) in MCS with Ti atoms to eliminate recombination centers. This dual optimization of interfacial charge dynamics is realized in a BiVO 4 /MCS/TiO 2 (BMT) ternary system. The design facilitates an efficient dual S-scheme heterojunction that, driven by an interfacial built-in electric field, enables highly efficient separation of photogenerated carriers while maximizing redox capability. Under visible-light irradiation, the composite achieves a degradation rate of 89.51% for norfloxacin within 30 min, along with excellent cycling stability. Combined spectroscopic analysis and theoretical calculations confirm that the Bi S bonds significantly reduce the interfacial charge-transfer barrier, while the Ti-V S structure effectively suppresses carrier recombination. The synergy between these two mechanisms is key to constructing an efficient S-scheme charge-transfer pathway. This work provides a clear strategy for designing high-performance photocatalytic systems through the cooperative integration of interfacial bonding and defect engineering. We developed a TiO 2 /Mn 0.5 Cd 0.5 S/BiVO 4 ternary system with dual interfacial modulation using Bi S covalent bonds as electron bridges and Ti filling of sulfur vacancies to construct a dual S-scheme heterojunction that suppresses charge recombination and enhances redox capacity. This synergy enables efficient norfloxacin degradation and stability under visible light. Download: Download high-res image (139KB) Download: Download full-size image
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COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
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2026
·
IF 5.4
Jitai Li,Yunlan Xu,Dengjie Zhong
In this work, an efficient nitrogen-doped carbon dots (N-CQDs) doped Bi 2 MoO 6 /CuMn 2 O 4 heterojunction photoanode (N-CQDs/Bi 2 MoO 6 /CuMn 2 O 4 ) was successfully prepared via a facile hydrothermal-coupling strategy, and it was integrated with a Cu cathode to build a PFC for concurrent electricity generation and organic pollutant degradation. Approximately 92% of RhB was eliminated, accompanied by photocurrent and power output values of 8.3 mA·cm −2 and 51.0 μW·cm −2 , respectively. In addition, the open-circuit voltage and photoconversion efficiency were measured as 0.60 V and 0.12%. The superior performance of PFC originates from the integrated action of carrier separation of Bi 2 MoO 6 /CuMn 2 O 4 Z-scheme heterojunction and electron-storage function of N-CQDs, which reinforces visible-light harvesting, suppressed charge recombination, accelerates the interfacial electron transfer and sustains strong redox potentials. The degradation process involved the participation of both radical species (•OH, •O 2 ⁻ ) and non-radical species (h + ). Due to the formation of local Schottky-like contact between Bi 2 MoO 6 /CuMn 2 O 4 and N-CQDs, N-CQDs act as an efficient electron mediator, which facilitates the generation of reactive oxygen species and further enhances the degradation efficiency. This work provides a new insight into constructing quantum-dot-mediated heterojunction photoanode.
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OPTICAL MATERIALS
·
2026
·
IF 4.3
Shuai Yang,Jialin Wang,Han Bao,Weili Liu,Jinshu Li,Jiao Xu,Hongwei Liang,Yiming Yang
Self-powered perovskite photodetectors (PDs) have emerged as an attractive platform for energy-efficient and low-power optoelectronic applications. However, achieving superior self-powered photodetection performance with wide linear dynamic range (LDR) and high-temperature stability remains challenging, due to the formidable defect-assisted ion migration and thermally activated carrier injection. Here, we demonstrate a thermally robust self-powered PD incorporated with a high-quality chemical vapor deposition grown CsPbBr 3 nanoplate and engineered Schottky contacts. The asymmetric Ti and Au contacts establish an effective built-in electric field that enables self-powered operation, and the adequate Schottky barrier efficiently suppresses thermally activated dark current. Meanwhile, the high crystalline quality of CsPbBr 3 nanoplates, characterized by a low defect density, minimizes trap-assisted carrier transport or ion migration, which contributes to the reduction of dark current and enhancement of photodetection robustness at elevated temperatures. As a result, the device exhibits impressive self-powered photodetection figures of merit with an ultralow dark current (∼-0.25 pA), a wide LDR of 137 dB, and a reliable operation up to 450 K. Notably, the responsivity is further enhanced at elevated temperatures. This work provides a clear physical strategy for realizing outstanding self-powered perovskite PDs with high-temperature robustness.
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SEPARATION AND PURIFICATION TECHNOLOGY
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2026
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IF 9.1
Zhibang Gao,Qiumin Wang,Chi Wang,Shuangyou Bao,Fei Wang,Kai Li,Yi Mei
The performance of peroxymonosulfate (PMS)-based advanced oxidation processes is often limited by inefficient reactive oxygen species (ROS) utilization and instability of active metal sites. Herein, a dual-confinement strategy is proposed by integrating spatial pore confinement and coordination confinement into Ti-based metal–organic frameworks (MOFs) to regulate PMS activation. Compared with Ti-BPDC, the pyridine-functionalized Ti-BPYDC framework provides Co N coordination sites, enabling stronger stabilization and electronic modulation of Co active centers. As a result, the Co-Ti-BPYDC/PMS system achieves enhanced tetracycline degradation (98.83% within 30 min), higher reaction kinetics (0.54 min −1 ), and improved mineralization (44.73%). Mechanistic studies reveal that the dual-confinement structure promotes interfacial electron transfer, stabilizes the Co 3+ /Co 2+ redox cycle, and favors a singlet oxygen ( 1 O 2 )-dominated non-radical pathway, while suppressing Co leaching. Consequently, the catalyst exhibits excellent stability and resistance to environmental interference. This work provides a general strategy for designing efficient and stable MOF-based catalysts for advanced oxidation processes.
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高影响因子
MATERIALS & DESIGN
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2026
·
IF 8.2
Yang Yang,Jingjian Liu,Jiye Zhang,Shuya Zhang,Jiazhen Wu,Qizhang Wang,Guangyi Yang,Qinhua Chen
Refractory diabetic wound is characterized by excessive oxidative stress and inadequate angiogenesis, both of which are primarily caused by mitochondrial dysfunction. Although nanozymes exhibit multiple enzyme-mimicking antioxidant activities, challenges such as immune rejection, limited catalytic activity, and poor biocompatibility remain. Here in, a novel therapeutic system based on plant exosome nanovesicle-incorporated nanozymes was designed to mitigate oxidative stress and promote healing in diabetic wounds by targeting and restoring mitochondrial function. Titanium-doped cerium vanadate (CeVO 4 -Ti) nanozymes with multiple enzyme catalytic activities had been rationally designed. The surface of CeVO 4 -Ti was modified with triphenylphosphine (TPP) to endow mitochondrial targeting. To enhance biosafety and delivery, the nanozymes were further encapsulated within dendrobium officinale-derived nanovesicles (DOEVs) and integrated into a dopamine-methacrylated hyaluronic acid (DHM) hydrogel, forming a composite system (DOEVs@CTT/DHM). DOEVs@CTT/DHM could effectively mimic the activity of natural enzymes, eliminate reactive oxygen species, reconstruct blood vessels, and promote re-epithelialization, thereby facilitating wound healing from multiple perspectives. Crucially, it activated the Nrf2/Parkin/Pink1 pathway to regulate mitophagy, thereby revitalizing mitochondrial function and then alleviating oxidative stress. This study presents a novel strategy for mitochondrial regulation, advancing the development of multifunctional nanozyme-based biomaterials for wound healing.
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高影响因子
MOLECULES
·
2026
·Vol. 31
·期 3
·396
·
IF 4.6
Yan Lu,Sen Zhang,Hong-Yan Ge,Han-Yue Yang,Feng Zhang,Yi-Fan Pan,Hong-Zhen Lian
Protein phosphorylation is a crucial post-translational modification that regulates protein activity, cellular signaling, transcriptional regulation, and cell cycle control. However, the analysis of phosphoproteins in biological samples is often compromised by complex sample matrices and interference from high-abundance proteins. While the top-down phosphoproteomics strategy enables comprehensive analysis of post-translational modifications based on intact proteins, its requirement for higher protein purity due to low protein ionization efficiency poses stern challenges. Consequently, developing appropriate enrichment methods for phosphoproteins in practical samples becomes essential. Immobilized metal ion affinity chromatography (IMAC) represents a common strategy for phosphorylated protein separation and enrichment. Among metal ions, Ti4+has gained widespread application as IMAC chelating ligands due to its capacity to form multiple coordination networks and its high selectivity for phosphorylated protein enrichment, leveraging the strong chelating ability of phosphate groups toward metal ions. This paper presents the design and preparation of a novel magnetic Ti-IMAC nanocomposite, MNP@MPTMS–VPA–Ti(IV). The material is modified with phosphate groups via facile thiol-ene click chemistry and then immobilizes Ti4+, enabling selective enrichment of intact phosphoproteins through IMAC affinity. The efficiency of enrichment was evaluated using subsequent matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) for detection and analysis. This Ti-IMAC material-based magnetic solid-phase extraction (MSPE)-MALDI-TOF MS protocol has been successfully applied to enrich intact phosphoproteins in milk and eel mucus with high selectivity, sensitivity, and suitability.
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PubMed
高影响因子
Science Bulletin
·
2026
·
IF 20.7
Xiaochuan Deng,Tong Liu,Xudong Wu,Qijue Lin,Hanlin Liu,Han Yang,Xun Yang,Maoyin Wang,Kaiguo Chen,Jiayu Dai,Tao Chen,Wenkun Zhu
Actinide (An)-based materials have shown fascinating electronic and bonding properties related to f orbitals, demonstrating significant potential in catalysis. However, the catalytic utility of uranium is constrained by its low electron affinity and high reduction potential. In this study, we designed an asymmetric f-p-d gradient orbital coupling strategy through spatial engineering of the hybridization among U 5f, O 2p, and Ti 3d orbitals on TiO 2 nanorod arrays (U/TiO 2 NRA). This asymmetric 5f-2p-3d structure modulates the band structure to improve light absorption capacity and prolong the lifetime of charge carriers, while optimizing the adsorption energetics of reaction intermediates, thus enabling efficient stepwise water dissociation. The fabricated photoanode achieves a noteworthy photocurrent density and excellent operational stability, outperforming most reported TiO 2 -based catalysts. Through theoretical analyses, it is verified that the 5f buffer band at the asymmetric U−O−Ti sites, mediated by 5f-2p-3d gradient orbital coupling, facilitates electron transfer, which effectively promotes the adsorption, activation, and stepwise dissociation of water molecules at the dual atomic sites. In this work, a new design paradigm is established for the development of high-performance An-based catalytic materials.
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PubMed
高影响因子
CHEMOSPHERE
·
2023
·
IF 8.8
Lin Dong,Yunlan Xu,Dengjie Zhong,Haixing Chang,Jun Li,Yi Liu,Zhuofan Han
In order to develop efficient photoanode to improve the performance of visible light responsive photocatalytic fuel cell (PFC), in this work, polyaniline/g-C 3 N 4 /Bi 2 O 3 /Ti photoanode was successfully prepared using silica-sol drop coating method, and assembled with Cu cathode to construct PFC to decompose rhodamine B and generate electricity simultaneously. The degradation rate, maximum photocurrent density and maximum power density of this PFC were 91.23%, 0.086 mA cm −2 and 4.78 μW cm −2 , respectively, which were 1.4 and 1.8 times, 2.4 and 4.5 times, and 1.9 and 7.3 times those of the corresponding values of the PFCs with g-C 3 N 4 /Bi 2 O 3 /Ti and Bi 2 O 3 /Ti photoanodes, respectively. This is attributed to the type II heterojunction structure formed among polyaniline, g-C 3 N 4 and Bi 2 O 3 in the polyaniline/g-C 3 N 4 /Bi 2 O 3 /Ti photoanode. Among them, polyaniline has π-π conjugated structure, which can rapidly transfer the electronic charge between g-C 3 N 4 and Bi 2 O 3 , thus enhancing the separation efficiency of photo-generated e − -h + pairs spatially and reducing their recombination, extending the visible light response wavelength of the photocatalyst, and finally improving its photocatalytic properties. This study can provide significant reference for the research of Bi 2 O 3 -based visible light responsive PFC.
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PubMed
高影响因子
Bioactive Materials
·
2023
·
IF 18.9
Qiongyu Qin,Ming Yang,Yu Shi,Haijing Cui,Chunshu Pan,Wenzhi Ren,Aiguo Wu,Jianqing Hu
Currently, precise ablation of tumors without damaging the surrounding normal tissue is still an urgent problem for clinical microwave therapy of liver cancer. Herein, we synthesized Mn-doped Ti MOFs (Mn–Ti MOFs) nanosheets by in-situ doping method and applied them for microwave therapy. Infrared thermal imaging results indicate Mn–Ti MOFs can rapidly increase the temperature of normal saline, attributing to the porous structure improving microwave-induced ion collision frequency. Moreover, Mn–Ti MOFs show higher 1 O 2 output than Ti MOFs under 2 W of low-power microwave irradiation due to the narrower band-gap after Mn doping. At the same time, Mn endows the MOFs with a desirable T 1 contrast of magnetic resonance imaging (r 2 /r 1 = 2.315). Further, results on HepG2 tumor-bearing mice prove that microwave-triggered Mn–Ti MOFs nearly eradicate the tumors after 14 days of treatment. Our study offers a promising sensitizer for synergistic microwave thermal and microwave dynamic therapy of liver cancer.
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PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Xiaohui Wu,Jingkang Xu,Yulan Jing,Yuanxun Li,Hua Su
The increasing demand for miniaturized electronic devices requires the development of advanced medium-high K materials. In this work, novel (Ti 1/2 W 1/2 ) 5+ -substituted LiNb 0.6- x (Ti 1/2 W 1/2 ) x Ti 0.5 O 3 (LNT- x TW, 0 ≤ x ≤ 0.12) ceramics were successfully prepared by the solid-state method. The increase in TW content led to the formation of LNT-0.08 TW ceramic with medium-high K and high Q × f after sintering at 1050 °C. This ceramic also recorded improved characteristics with ε r ∼53.84, Q × f ∼7482 GHz and τ f ∼43.43 ppm/°C related to ionic polarizability, large grains, high densification, and [Ti 2 O 3 ] 2+ / N layers. In addition, Li 2 O–B 2 O 3 –SiO 2 –CaO–Al 2 O 3 (LBSCA) used as an effective sintering aid, improved densification and promoted sintering by not only decreasing the temperature to 900 °C, but also enhancing the microwave dielectric properties with ε r ∼49.46, Q × f ∼8149 GHz, and τ f ∼12.04 ppm/°C. The Q × f value was estimated to 1.15 ∼ 2-fold higher than other LNT-based ceramics within stable τ f . More encouragingly, the LNT-0.08 TW ceramic also showed good chemical match with Ag, suggesting usefulness for miniaturized LTCC devices.
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