JOURNAL OF CATALYSIS
·
2026
·
IF 6
Shaozhi Liu,Honggang Zhang,Zeyan Wang,Hefeng Cheng,Peng Wang,Zhaoke Zheng,Ying Dai,Baibiao Huang,Yuanyuan Liu
Catalytic ozonation offers a promising approach for removing perfluorinated compounds, yet developing catalysts with both high activity and stability remains a great challenge due to severe metal ions leaching. Herein, we design a Mn single atom decorated γ-AlOOH catalyst (denoted as Mn x /γ-AlOOH), which displays efficient catalytic ozonation towards perfluorooctanoic acid (PFOA) removal. Under optimal conditions, Mn 2.2 /γ-AlOOH achieves a defluorination ratio of 99.39% after 15 h of catalytic ozonation process, with a distinctive low leaching percentage (0.52% for Mn and 0.21% for Al, compared to 10.44% for Mn leaching from MnO 2 and 0.95% for Al leaching from γ-AlOOH). Comprehensive analysis indicates that the introduction of Mn single atom optimizes the electronic structure and provides an additional indirect electron transfer pathway, which not only facilitates O 3 activation, but also reduces Mn ion leaching by decreasing electron loss, and simultaneously enhances the activity and stability of the catalyst. This work provides new insights into enhancing the activity and stability of catalysts during the catalytic ozonation process via the rational design of atomically dispersed sites.
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DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2016
·
IF 5.31
Renhui Sun,Hao-Bin Zhang,Jin Qu,Hua Yao,Jian Yao,Zhong-Zhen Yu
Hierarchical AlOOH@reduced graphene oxide (RGO) hybrids are synthesized by an anti-solvent process with the assistance of supercritical carbon dioxide (scCO 2 ) fluid due to its high diffusivity and low viscosity. The presence of RGO allows the uniform and vertical assembling of AlOOH nanosheets to form hierarchically nanostructured hybrids with a large specific surface area of 513 m 2 g −1 . The favorable structure with numerous mesopores provides sufficient active sites for the adsorption of fluoride species, leading to a maximum adsorption capacity of 118.7 mg g −1 , which is among the best performances of aluminum based adsorbents. Compared to neat AlOOH, it is interesting that AlOOH@RGO hybrid exhibits a much better defluoridation capacity at lower initial concentrations of fluoride ions, which is quite valuable when considering the low fluoride ion concentrations in contaminated groundwater. The stable and robust hierarchical structure afforded by covalent bonding between AlOOH and RGO further endows the hybrid as a promising adsorbent for practical treatment of wastewater due to its excellent fluoride adsorption capacity and ease of separation from aqueous solutions.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
POLYMER COMPOSITES
·
2026
·
IF 4.7
Mengfei Du,Enhao Zhu,Xilai Yan,Zhe Wang,Ke Wang
Enhancing the durability of ultraviolet-cured-in-place pipe (UV-CIPP) in alkaline environments remains challenging due to its long-term exposure to concrete pore solution from the original pipe. Herein, a novel strategy that γ-AlOOH coating assists to immobilize Irganox 1010 onto glass fibric (GF) was proposed for simultaneously improving alkaline corrosion resistance and mechanical properties of UV-CIPP. Through the beneficial bridging of γ-AlOOH with the coupling agent, Irganox 1010 was immobilized on the GF (GF-Al-g-1010) surface through hydrogen bonding and covalent bonding. The leaching of Si 2+ from the GF backbone of unsaturated polyester resin (UP)/GF-Al-g-1010 composite was reduced by 40.60% and the hydrolyzed alcohol products decreased by 47.1%. Meanwhile, the mechanical properties of UP/GF-Al-g-1010 remained well preserved. The flexural and tensile modulus retained at 99.0% and 96.3%, respectively. The immobilization of Irganox 1010 at the UP/GF interface formed a protective hydrophobic layer and stabilized free radicals, which together inhibited resin degradation and reduced interface debonding. Moreover, the flexural strength and modulus of composites increased by 36.5% and 38.4%, respectively. The chemical bonding between GF-Al-g-1010 and UP chains enhanced interfacial adhesion. In summary, this work will facilitate the design of UV/thermal dual-cured composites with high strength and alkaline corrosion resistance for pipeline rehabilitation. Highlights A novel AlOOH coating assists to immobilize Irganox 1010 onto glass fabric. The flexural strength and modulus increased 36.5% and 38.4%, respectively. The Si 2+ leaching and hydrolyzed alcohol products were reduced by 40.60% and 47.1%. The flexural and tensile modulus retention reached 99.0% and 96.3%, respectively. The AlOOH-1010 coating improved both durability and mechanical properties.
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DOI
高影响因子
MATERIALS LETTERS
·
2019
·
IF 3.019
Hongqin Ma,Meijie Wang,Jiasheng Zhang,Shuai Sun
To circumvent the liquid-solid separation and dispersion of the powdered adsorbent during adsorption-desorption circulation, using a drop-oil sol-gel method, the spherical ZrO(OH) 2 /AlOOH hybrid composite beads were prepared as an adsorbent for sulfate adsorption removal from water. The preparation mechanism was proposed and discussed in term of the characterization results showing that the as-prepared beads is an amorphous mesoporous material constructed from nanoflakes composed of rod-like nanoparticles, and possesses a good sphericity, a relatively high specific surface area (195.56 m 2 /g) and adequate mechanic strength (Zr/Al(0.2)-30-3.5, 32.1 N). The adsorption tests indicated that the saturated adsorption capacity increases with sulfate concentration and decreases with prolongation of adsorbent drying time, owing to the reduction of water content, the maximum adsorption capacity can reach 205 mg/g (Zr/Al(0.2)-30-2). This work has a profound significance for the further research and industrial application of spherical adsorbent related to hydrate zirconia in fixed adsorption bed.
研究领域:
环境科学
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材料科学
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DOI
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2020
·Vol. 56
·期 3
·2549-2558
·
IF 3.553
Liu Fangfang,Xu Zehua,Feng Ying,Li Yongfeng,Dou Yongshen,Liu Sanmao
In this work, we report a facile and economic one-step method under atmospheric pressure and 50 °C water bath for the fabrication of a three-dimensional (3D) upright-standing boehmite (AlOOH) nanosheet array film on a structured Al honeycomb substrate, in which zero-valence palladium (Pd 0 ) nanoparticles were well distributed at the same time. Redox reactions of two galvanic cells where the Al honeycomb substrate acted as the common anode, but the palladium precursor (Pd(NH 3 ) 4 2+ ) and weak base water (H 2 O + OH − ) served as the electrolyte of cathode I and II, respectively, led to simultaneous formation of Pd 0 nanoparticles at cathode I and AlOOH nanosheets at cathode II on the surface of Al substrate. The resultant AlOOH nanosheet array was uniform and about 300–400 nm thick, and the highly dispersed Pd 0 nanoparticles were also rather small with an average size of 8.4 nm. Hence, the as-obtained Pd-AlOOH/Al monolithic catalysts exhibited high specific surface area and large micro/mesopore structure as compared to pristine Al honeycomb substrate, leading to excellent catalytic activity in total oxidation reaction of toluene.
研究领域:
材料科学
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催化化学
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产品关联
DOI
高影响因子
JOURNAL OF MOLECULAR LIQUIDS
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2024
·
IF 5.3
Zhaowei Hou,Xiaolin Wu,Guopeng Wu,Yi Lu,Wei Lang,Xing Li,Xiaowei Li,Xin Zhao,Shouliang Lu
Foam has been widely employed in oilfields to modify the water injection profile for enhanced oil recovery (EOR). In the present study, the mixed binary AlOOH/SiO 2 nanoparticles (MBN) assisted polyethyleneglycolmonoisodecylether (PMIE) system was successfully constructed to stabilize foam for the first time. The foam volume, half-life, and bubble size were evaluated to explore the foam stability. It was found that the PMIE-MBN system stabilized foam displayed superior stability, whose mechanism was revealed via the measurements of the surface tension, dilatational viscoelasticity, and foam viscosity. The irreversible adsorption of MBN in the gas–liquid surface significantly improved the strength of the foam film and the intensive interaction between MBN and PMIE molecules effectively promoted the intensity of the viscoelastic network among foam bubbles in the water phase, which was essential for superior stability of the foam. Moreover, the PMIE-MBN system stabilized foam exhibited excellent stability even in the presence of crude oil. The sandpack flooding tests reflected that the PMIE-MBN system stabilized foam possessed the favorable blocking ability and significantly enhanced tertiary oil recovery (∼15.2 % of initial oil in place).
研究领域:
石油工程
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材料科学
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化学工程
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DOI
高影响因子
CATALYSIS COMMUNICATIONS
·
2017
·
IF 3.33
Fei Chen,Feng Wang,Qing Li,CaiYuan Cao,Xiang Zhang,Hua Ma,Yu Guo
Different catalyst supports, namely: commercial Degussa P25 TiO 2 , anatase TiO 2 (CC), γ-Al 2 O 3 , and lab-synthesized AlOOH were used to prepare Pt-based catalysts for the room temperature formaldehyde oxidation. XRD, BET and XPS were conducted to characterize the bulk structure of support, the oxidation state of surface elements and the ratio of oxygen in hydroxyls to the total surface oxygen, as well as textural properties of catalysts. For the first time, a long-term activity test at 0% relative humidity was conducted to investigate relationships between the activity of the Pt-based catalysts with Pt dispersion and oxidation state and the relative abundance of surface OH groups. Pt/AlOOH showed the best activity, whereas Pt/P25 TiO 2 gave the worst activity. We consider that both the surface hydroxyl groups and the Pt dispersion are indispensable, and both act synergistically. The specific surface area is not the decisive factor for the present reaction.
研究领域:
催化化学
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环境催化
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材料化学
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表面科学
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大气污染控制
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DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2016
·
IF 3.15
Meng Tian,Xueliang Cui,Chunxu Dong,Zhengping Dong
In this study, a novel catalyst has been prepared through supporting Pd nanoparticles (NPs) on the surface of boehmite (γ-AlOOH) based hollow aluminosilicate microspheres (HAM@γ-AlOOH). The prepared Pd/HAM@γ-AlOOH catalyst has high catalytic activity for the hydrogenation of nitroarenes to their corresponding amino derivatives with high yields at ambient conditions. The high catalytic efficiency is attributed to the large pore size of the flower-like hierarchical flakes structure of HAM@γ-AlOOH, that gives Pd NPs on the support surface easy accessibility. Moreover, the Pd/HAM@γ-AlOOH catalyst can also be easily recycled at least five times without obvious decrease of catalytic activity. This work may provide a useful method for the fabrication of supported noble metal NP-based catalysts on the surface of mesoporous hierarchical structure materials with easy accessibility and superior activity.
研究领域:
催化
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材料科学
·
化学工程
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DOI
高影响因子
ChemistrySelect
·
2025
·Vol. 10
·期 37
·e02508
·
IF 2
Ziyi He,Zhengquan Zhang,Jing Liu,Yuling Wang,Liangfeng Li,Xingquan Zhang,Yong Ren
Micro–nano structures with hydrophobic properties are promising in self-cleaning, anti-corrosion, and anti-icing performance. Here, we report a solvothermal method to construct micro–nano structures on Al–Li alloy by introduction oleylamine. The results show the concentration of oleylamine has an effect on morphology and hydrophobic property of micro–nano structures formed on Al–Li alloy. The X-ray diffraction results indicates the micro–nano structure is mixture with AlOOH and Al(OH) 3 . When the concentration of oleylamine is about 0.48 mol/L, the length of micro–nano structures is up to microscale, the width of micro–nano structures is about 100–200 nm, and the water contact angle can achieve 152.3°. Graphical A hydrothermal solution was prepared by mixing oleylamine, sodium formate, and DMF. Then, the uniform mixed solution was successfully used to prepare micro–nano structures on the surface of Al–Li alloy by a one-step hydrothermal method. The results show that when the concentration of oleylamine reaches the optimal level (0.48 mol/L), the micro–nano structure is uniform and the voids are filled with air, thus forming a superhydrophobic state.
研究领域:
材料科学
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表面工程
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纳米技术
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腐蚀防护
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功能材料
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产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2022
·Vol. 52
·期 2
·376-383
·
IF 4.569
Enming Ping,Lingyun Kong,Mengyao Liu,Yunshan Zhou,Lijuan Zhang,Nan Chen
The reaction of porous γ-Al2O3 particles acting as both a sacrificial template and an aluminum source with 1,4-naphthalene diacid (H2NDC) resulted in the formation of γ-AlOOH@Al(OH)(1,4-NDC) composites, in which ZIF-67 was then loaded by the in situ crystallization method, leading to the formation of γ-AlOOH@Al(OH)(1,4-NDC)@ZIF-67 composites. The deliberately designed composite was used to separate H2/D2 at 77 K in a 1 m chromatographic column. The results demonstrated that the optimized composite can achieve the effective separation of H2/D2 in gas chromatography due to the additive effects of kinetic sieving and chemical affinity quantum sieving of Al(OH)(1,4-NDC) and ZIF-67. By optimizing chromatographic separation conditions, the resolution R reached 2.02 with the separation time t = 7.72 min. The composite also showed satisfactory repeatability and reproducibility.
研究领域:
材料科学
·
分离科学
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物理化学
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纳米材料
·
能源化学
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DOI
高影响因子
危险品化学品经营许可证（带存储）