Journal of Environmental Chemical Engineering
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2025
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IF 7.2
Jun Tu,Qiuru Chen,Siyu Ke,Xiaohui Yi,Yiquan Qiu,Ziyi Lin,Shuxiang Yang,Xinzhi Wang,Xiaotong Bai,Mingzhi Huang
In this study, corn stover biochar was prepared and modified with manganese (II) chloride (MnCl 2 ) and phosphoric acid (H 3 PO 4 ) to investigate the adsorption performance and mechanism of neonicotinoids represented by clothianidin (CLO). MnCl 2 promotes pore formation in biomass and enhances activation efficiency, while H 3 PO 4 boosts the specific surface area and adsorption capacity of the product. These properties make them widely used in biomass activation. The modified biochar (Mn-P-BC) exhibited an adsorption capacity of 11.5 mg·L -1 for CLO, representing a 2.8-fold enhancement compared to unmodified biochar (BC). In materials characterization, SEM and BET analysis results show that Mn-P-BC has a developed porous structure, and the surface area increases by 13.7 times compared with BC, which can provide more adsorption sites. According to the electrochemical properties, kinetics, and isotherm analyses, the adsorption mechanism for CLO was identified as involving physicochemical processes. Furthermore, density functional theory (DFT) calculations indicated that Mn-P-BC was more efficient in removing CLO compared to thiamethoxam (THM) and imidacloprid (IMI). It is shown that the mechanism of interaction between Mn-P-BC and CLO mainly involves pore filling, π-π interactions, and hydrogen bonding. In summary, the co-modification of biochar with MnCl 2 and H₃PO₄ significantly improved the adsorption performance of biochar, which provided new insights into the development of adsorbents for neonicotinoid insecticide removal.
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
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2024
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IF 4.8
Tianyu Bai,Jinquan Tao,Yijing Jia,Wenbin Huang,Rongpeng Yao,Xinan Xue,Yasong Zhou,Qiang Wei
In the research of directly synthesizing H-form ZSM-5, ammonium hydroxide is commonly used as an alkali source instead of NaOH to avoid multiple ion exchange steps. However, the volatile nature and the lack of structure-directing effect of ammonium hydroxide limit its application in practical. In this study, n -butylamine (NBA) was used as the main alkali source to directly prepare HZSM-5 zeolites with SiO 2 /Al 2 O 3 ratios ranging from 40 to 300 under traditional hydrothermal conditions. The influence of the amount of NBA, ethanol, seed, and pre-crystallization on the synthesis products was investigated under the condition of SiO 2 /Al 2 O 3 = 80. Theoretical simulation suggested that n -butylamine cations (NBA + ) play the most potent directing role in the formation of the MFI structure but could lead to difficulties in removal during calcination. The addition of ethanol as the zeolite growth modifier (ZGM) could decrease the usage of NBA and reduce the difficulties in calcination, and the addition of seed provided the conditions for initiating crystallization in the system that could not spontaneously nucleate. HZSM-5 with different SiO 2 /Al 2 O 3 ratios were prepared under the optimal crystallization conditions, and the as-synthesized samples exhibited superior textural and acid properties compared to commercial zeolite. Finally, the 1 L scale-up synthesis and MTP reaction were conducted to demonstrate the practicality of this economically and environmentally-friendly synthesis strategy.
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Energetic Materials Frontiers
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2022
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IF 0
Zhi-qiang Wang,Zhen-qi Zhang,Shan-hu Sun,Mi Yan,Shi-liang Huang,Shuang-qi Hu,Jin-jiang Xu,Li-shuang Hu
Polymorphs of energetic materials generally exhibit distinct features, such as density, thermal stability, sensitivity, and detonation performance. These features are important in determining the appropriate applications of a given polymorph. To understand the thermal stability of new high explosive 4,4′,5,5′-tetranitro-1H,1′H- [2,2′-biimidazole]-1,1′-diamine (DATNBI), we systematically investigated its polymorphic transition (PT) under thermal stimulation and discovered a novel stable γ form of DATNBI. The results showed that the solid-solid PT path was β → α → γ . In this study, the three polymorphs of DATNBI were prepared through solvent recrystallization, and their PT processes in solution were explored. Crystal structure analysis of γ -DATNBI suggested that its special cross-cross grid crystal packing may be the main reason for its stable existence at room temperature and its lack of PT process before chemical decomposition, which starts at 240 °C. To further explore the PT process of DATNBI, the solid phase transition mechanism of DATNBI was analyzed using non-isothermal kinetics. The results demonstrated that the two high-temperature PT processes— β → α and α → γ —were not single-step reactions but complex multi-step reactions. The PT activation energy of the β → α process was slightly higher than that of the α → γ process. In addition, the influences of different polymorphs on the performance of DATNBI were explored. The results revealed that safety and detonation performance should decrease as a result of the incorporation of γ -DATNBI. This study contributes to understanding the PT behavior and the crystal structure evolutionary mechanism of DATNBI. This study provides practical support for formula design, process condition selection, and thermal stability evaluation of DATNBI explosives.
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INORGANIC CHEMISTRY
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2020
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IF 4.825
Ji Wu,Ke Cao,Cai-Yan Zhang,Tao-Tao Xu,Xin-Yu Wen,Bo Li,Junxiao Yang
A palladium catalyzed selective B(3)–H activation/oxidative dehydrogenative coupling for the synthesis of bis(o-carborane)s connected with B(3)–B(3′) and B(3)–B(6′) bonds has been developed for the first time. A plausible mechanism involving stepwise activation of B(3)–H and B(3′/6′)–H bonds by PdII and PdIV was proposed. This work is the first example and the most efficient protocol for synthesis of bis(o-carborane)s connected with B(3)–B(3′) and B(3)–B(6′) bonds, which has important reference for design, synthesis, and application of bis(o-carborane)s in related fields.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2025
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IF 13.2
Yu-Xuan Fu,Shu-Yi Huang,Ming-Shuai Sun,Yan Zhou,Dan-Dan Cai,Wen-Shuai Zhu,Wei Hui,Duan-Jian Tao
Current industrial catalysts for α-pinene hydrogenation suffer from harsh reaction conditions and poor selectivity to cis -pinane, primarily due to their inability to effectively adsorb α-pinene in a specific favorable configuration on the catalyst surface. In this study, a high-specific-surface-area, rod-shaped CeO 2 -supported ultra-fine Ru nanoparticle (average particle size of 4 nm) catalyst was synthesized via hydrothermal method for the highly stereoselective hydrogenation of α-pinene to cis -pinane. The resulting Ru/CeO 2 -H catalyst achieved an α-pinene conversion of 99.3 % and an impressive cis -pinane selectivity of up to 99.6 % under exceptionally low temperature (30°C), 0.6 MPa H 2 and 0.5 h with high TOF (1236 h −1 ). Density functional theory (DFT) calculations indicated that α-pinene preferentially adsorbs onto the Ru surface via the backside of its intramolecular dimethyl bridge. This particular adsorption mode lowers the energy barriers for further hydrogenation to generate cis -pinane. The oriented dimethyl-up configuration of α-pinene and ultra-low activation energy (12.04 kJ/mol obtained from kinetic tests) enable the highly selective production of cis -pinane at ambient temperature. Furthermore, the strong interaction between the CeO 2 -H support and highly dispersed Ru, combined with the ambient-temperature reaction conditions, effectively prevents metal nanoparticle agglomeration and coking, imparting the catalyst with exceptional stability. Notably, the catalyst was reused at least 15 times without observing any significant deactivation, demonstrating its significant potential for practical applications.
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高影响因子
CHEMICAL ENGINEERING JOURNAL
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2022
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IF 16.744
Shucheng Liu,Ying Sun,Danzhao Guo,Ruiheng Lu,Yuying Mao,Hongxiang Ou
For porous molecular imprinted polymers (MIPs), introduction of special functional groups and integration porous structure support will endow the MIPs with tunable surface properties and specific affinity performance. Herein, by combination of RAFT molecular imprinting, Pickering emulsion, and boronate affinity methods, a new kind of porous imprinted microspheres (BA-HPMIPs) using the low pKa value of APBA (1-allylpyridinium-3-boronic acid, pKa = 7.4) as functional monomer was prepared for specific molecular recognition and separation of NRG. Meanwhile, the novel RAFT functioned surfactants with dual amide multiple H-bonds were designed as stabilized particles was used to promote sustainability, which further confer them multifunctionality and/or by polymerizing the Pickering emulsion itself. Equilibrium adsorption was reached rapidly within 360 min, and the maximum equilibrium binding capacities of BA-HPMIPs were found to be 118.32 µmol g −1 for NRG. Furthermore, they had a stronger selectivity towards NRG than other competitive target (i.e rutin, catechol, ARS, o -nitrophenol). Moreover, BA-HPMIPs have shown outstanding reusability of 8.63 % loss in enrichment performance after five times repeatedly. As a proof of this concept, a commercially avaliable NRG with purity could be effectively extracted and concentrated to 96.75 % purity. These results demonstrated that, a new kind of porous imprinted microsphere with abundant porous structure and boronic acid recognizing sites has great potential for separation and purification of industrial samples under neutral conditions.
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高影响因子
ACS Applied Materials & Interfaces
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2021
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IF 9.229
Huiqin Ma,Weiyi Yang,Shuang Gao,Zifeng Lin,Zheyang Mo,Chao Li,Jian Ku Shang,Qi Li
Recently, photoassisted charging has been demonstrated as a green and sustainable approach to successfully enhance the capacitance of supercapacitors with low cost and good efficiency. However, their light-induced capacitance enhancement is relatively low and is lost quickly when the illumination is off. In this work, a novel active material system is developed for supercapacitors with the photoassisted charging capability by the decoration of a small amount of Bi2WO6 nanoparticles on an h-WO3 submicron rod surface in situ, which forms a typical type II band alignment heterostructure with a close contact interface through the co-sharing of W atoms between h-WO3 submicron rods and Bi2WO6 nanoparticles. The photogenerated charge carrier separation and transfer are largely enhanced in the h-WO3/Bi2WO6 submicron rod electrode, which subsequently allows more charge carriers to participate in its photoassisted charging process to largely enhance its capacitance improvement under simulated solar illumination than that of the h-WO3 submicron rod electrode. Furthermore, the h-WO3/Bi2WO6 submicron rod electrode could retain its photoinduced capacitance enhancement in the dark for an extended period of time from the photocatalytic memory effect. Thus, our work provides a solution to the two major drawbacks of reported supercapacitors with the light-induced capacitance enhancement property, and supercapacitors based on active materials with the photocatalytic memory effect could be utilized in various technical fields.
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高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2026
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IF 9.6
Siqi Liu,Shanshan Cheng,Zhimeng Liu,Miaomiao Zheng,Hongyuan Wang,Supakorn Boonyuen,Hongyi Gao,Ge Wang
Reactive oxygen species (ROS)-mediated sterilization typically relies on continuous light irradiation or exogenous H 2 O 2 addition, limiting their practical utility under dark or resource-limited conditions. Herein, we rationally design an S-scheme MIL-100(Fe)/Zn 3 In 2 S 6 heterojunction (M 5 Z 1 –1@ZIS2) by in-situ growing Zn-doped MIL-100(Fe) on Zn 3 In 2 S 6 , achieving synergistic light-harvesting and ROS self-supply capabilities. The incorporation of Zn 3 In 2 S 6 enhances electron density around Fe 2+ sites while modulating Fe 3+ states, significantly improving O₂ activation and H 2 O 2 affinity. This unique electronic regulation enables the heterojunction to generate superoxide radical(·O₂ − )-dominated ROS even in the dark. Notably, visible-light pretreatment induces active In sites in Zn 3 In 2 S 6 to produce H 2 O 2 , which accumulates and sustains the FeII/FeIII redox cycle in the absence of light, driving continuous hydroxyl radical(·OH)-dominated ROS generation. Combined characterizations including X-ray photoelectron spectroscopy (XPS) and Electron Paramagnetic Resonance (EPR) confirm H₂O₂-mediated Fe 2+ regeneration and ROS persistence. The M 5 Z 1 –1@ZIS2 heterojunction exhibits exceptional antibacterial performance, achieving ≥99.9% inactivation of Escherichia coli ( E. coli ) within 1.5 h in the dark and 40 min under visible light. This work provides a strategy for designing self-sustaining catalytic systems that leverage light-driven H₂O₂ supply to enable day-night ROS functionality. Furthermore, M 5 Z 1 –1@ZIS2 loaded on polyvinylidene fluoride (PVDF) film can achieve an efficiency of over 99% for particulate matter (PM) pollutants at the wind speeds of 1.5 m/s and 0.5 m/s and reach a maximum adsorption efficiency of 99.5% for formaldehyde within 19 min, highlighting its potential for all-weather air purification via ROS-mediated environmental remediation.
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PubMed
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
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2019
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IF 3.571
He Li,Chun-Jian Wu,Xiang-Yi Tang,Shu-Juan Yu
The control of 2,3-dihydro-3,5-dihydroxy-6-methyl-4(H)-pyran-4-one (DDMP) formation in the Maillard reaction is important to improve the thermally treated food quality as a result of its intense bitterness and potential toxicity. In this work, phenolic acids, such as gallic, protocatechuic, caffeic, and ferulic acids, were applied to modulate DDMP formation in a microaqueous glucose–proline model. The formation of DDMP was inhibited at low concentrations (from 0.1 to 5.0 mM) while enhanced at 10.0 mM gallic, protocatechuic, and caffeic acids. Ferulic acid always inhibited DDMP formation as a result of the absence of catechol groups on its benzene ring. The result indicated that the control of DDMP formation depended upon the concentration and chemical structures of phenolic acids, such as the number of hydroxyl groups. Further studies indicated that the hydroxyl distribution of phenolic acids regulated the peroxide formation in the model reaction system and further changed the development of the oxidation reaction, which affected the degradation of glucose via caramel or Maillard reaction, Amadori rearrangement product oxidation, and 1-deoxyglucosone degradation to form the intermediates.
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高影响因子
ENERGY & FUELS
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2024
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IF 5.2
Ziyi Li,Li Huang,Xiaoyang Yu,Kun Huang,Wenbo Cui,Hong Zhang
The development of stable and efficient ODS catalysts for achieving room-temperature catalytic oxidation desulfurization is one of the challenges in the field of catalytic oxidation desulfurization. This work successfully synthesized and evaluated a new type of composite catalyst, Mo8/h-BN, using the wet impregnation method to investigate its desulfurization performance under various conditions. ODS tests were conducted on DBT, BT, and 4,6-DMDBT using Mo8/h-BN as the catalyst, H2O2 as the oxidant, and [BMIM]PF6 as the extractant. Characterization and testing revealed that Mo8/h-BN exhibited excellent ODS activity, converting DBT completely at 60 °C in 10 min. This study not only explored the optimal desulfurization conditions but also investigated the desulfurization performance of the catalyst at room temperature. Additionally, it is speculated that there may be an electron transfer between Mo8 and h-BN, which enhances the stability of the catalyst. Finally, possible CODS mechanisms were inferred through GC-MS and free radical trapping experiments. In conclusion, the composite catalyst Mo8/h-BN provides a new pathway for developing low-energy consumption, sustainable, cost-effective, and efficient desulfurization catalysts.
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高影响因子
ADVANCED MATERIALS
·
2024
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IF 27.4
Yibo Xu,Shirong Wang,Hongli Liu,Xianggao Li
Organic metal halide perovskite solar cells (PSCs) bearing both high efficiency and durability are predominantly challenged by inadequate crystallinity of perovskite. Herein, a polymer microencapsulation-expansion-contraction strategy is proposed for the first time to optimize the crystallization behavior of perovskite, typically by adeptly harnessing the swelling and deswelling characteristics of poly(4-acryloylmorpholine) (poly(4-AcM)) network on PbI 2 surface. It can effectively retard the crystallization rate of perovskite, permitting meliorative crystallinity featured by increased grain size from 0.74 to 1.32 µm and reduced trap density from 1.12 × 10 16 to 2.56 × 10 15 cm −3 . Moreover, profiting from the protection of poly(4-AcM) microencapsulation layer, the degradation of the perovskite is markedly suppressed. Resultant PSCs gain a robust power conversion efficiency (PCE) of 24.04%. Typically, they maintain 91% of their initial PCE for 13 008 h in a desiccated ambient environment and retain 92% PCE after storage for 4000 h with a relative humidity of 50 ± 10%, which is the state-of-the-art long-term stability among the reported contributions.
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PubMed
高影响因子
ACS Applied Materials & Interfaces
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2015
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IF 6.723
Zu-Sheng Huang,Xu-Feng Zang,Tao Hua,Lingyun Wang,Herbert Meier,Derong Cao
Five novel metal-free organic dyes DQ1–5 containing a dipentyldithieno[3,2-f:2′,3′-h]quinoxaline (DPQ) unit were synthesized and applied in dye-sensitized solar cells (DSSCs), where DPQ was employed as a π-spacer for the first time. Their photophysical, electrochemical, and theoretical calculations and photovoltaic properties were systematically investigated. All the five dyes show broad photoresponse. Especially the absorption edges of DQ3–5 extend to 800 nm on the TiO2 films. The inserted electron-rich unit 3,4-ethylenedioxythiophene or electron-withdrawing group benzothiadiazole (BTD) in DPQ-based dyes can greatly influence the optoelectronic properties of the dyes. In addition, the different electron donors also significantly affect the performance of the DSSCs. Under standard global AM 1.5 solar light conditions, the DQ5 sensitized solar cell obtained a power conversion efficiency of 7.12%. The result indicates that the rigid DPQ-based organic dye is a promising candidate for efficient DSSCs.
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高影响因子
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