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Journal of Iron and Steel Research International 2023年第4期30卷 749-759页

作者： Lun Fu Yu-fei Zhu Bin Yang Chao Yu Hong Xiao National Engineering Research Center for Equipment and Technology of Cold Strip Rolling Yanshan UniversityQinhuangdao 066004HebeiChina

Al/steel composite plate has a wide application prospect,but great differences in properties between Al and steel are *** is difficult to obtain high bonding strength by the traditional cold roll bonding ***/steel composite plate was thus prepared by cold roll bonding at a reduction rate of 60%after oxidation treatment on the surface to be composited on the steel *** heat treatment of holding at 400℃ for 1 h and cooling with the furnace was then *** bonding strength,microstructure,and properties of the Al/steel composite plate before and after annealing were analysed and compared through shear test,bending test,tensile test,and *** show that the shear strengths of the interface before and after annealing are 100 and 80 MPa,*** the shear strength of the annealed Al/steel composite plate decreases,the bending and overall tensile properties of the composite plate are improved,showing better mechanical properties.

关键词： Al/steel composite plate oxidation treatment Annealing treatment Shear strength Cold roll bonding

Effect of oxidation treatment on the adsorption and the stability of mercury on activated carbon

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Journal of Environmental Sciences 2006年第6期18卷 1161-1166页

作者： HU Chang-xing ZHOU Jin-song LUO Zhong-yang HE Sheng WANG Guang-kai CEN Ke-fa State Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310027 China

oxidation treatment on the adsorption and the stability of Hg on activated carbon （AC） was inrestigated. Both MnO2-AC and FeCl3-AC were produced during oxidation treatment. The measurement of modified AC＇s mercury adsorption capacity was conducted in a simulated coal-fired flue gas by adsorbing test apparatus. TCLP and column leaching methods were used to test the stability of mercury adsorbed on ACs. The results indicate that the oxidation treatment changed the pore structure of the AC and modified the carbon surface by creating chemical components such as MnO4^-, Mn^4＋, O, NO^3-, Fe^3＋, Cl^-, etc. The Hg sorption capacity on MnO2-AC or FeCl3-AC was about three times higher than that of untreated carbon. In addition, the mercury control cost of each of the formers was about the half cost of the untreated carbon. The stability of Hg absorption was studied, it found that mercury adsorbed on the oxidation treated AC was not better than that of untreated carbon. It could concluded that the insoluble form of Hg is very important to the stability of mercury adsorbed on AC. This study suggests that the FeCl3-AC is the best absorbent for Hg with high adsorption capacity, better Hg adsorption stability in leaching environment, and lower cost among the three ACs tested.

关键词： activated carbon oxidation treatment Hg adsorption stability

Effects of oxidation treatment on properties of SiO_(2f)/SiO_2-BN composites

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Journal of Central South University 2012年第1期19卷 30-35页

作者： LI Duan ZHANG Chang-rui LI Bin CAO Feng WANG Si-qing YANG Bei LIU Kun State Key Laboratory of Advanced Ceramic Fibers&Composites College of Aerospace&Materials EngineeringNational University of Defense TechnologyChangsha 410073China

The silica fiber reinforced silica and boron nitride-based composites （SiO2f/SiO2-BN） were prepared firstly via the sol-gel method and then the urea route, and the effects of oxidation treatment on the component, structure, mechanical and dielectric properties of the composites were investigated. The results show that the oxidation treatment at 450 ℃ will not impair the structure of boron nitride, and carbon is the main impurity with the excessive urea. The density of SiO2f/SiO2-BN composites is 1.81 g/cm3, and the flexural strength and elastic modulus are 113.9 MPa and 36.5 GPa, respectively. After oxidation treatment, the density varies to 1.80 g/cm3, and the flexural strength and elastic modulus are decreased to 58.9 MPa and 9.4 GPa, respectively. The mechanical properties of the composites are severely damaged, but they still exhibit a good toughness. The composites show excellent dielectric properties with the dielectric constant and loss tangent being 3.22 and 0.003 9, respectively, which indicates that the oxidation treatment is ineffective to improve the dielectric properties of SiOzf/SiO2-BN composites.

关键词： radome boron nitride urea route composites oxidation treatment wave-transparent structure mechanical properties dielectric properties

Bonding enhancement of cold rolling TA1 P-Ti/AA6061 composite plates via surface oxidation treatment

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Transactions of Nonferrous Metals Society of China 2024年第9期34卷 2864-2880页

作者： Lun FU Bin YANG Yun-chang GUO Chao YU Hong XIAO National Engineering Research Center for Equipment and Technology of Cold Strip Rolling Yanshan UniversityQinhuangdao 066004China College of Mechanical Engineering Yanshan UniversityQinhuangdao 066004China

TA1 P-Ti/AA6061 composite plate was produced by oxidizing the surface of the titanium plate and adopting a cold roll bonding *** results revealed that the oxide film(Ti6O)prepared on the surface of TA1 pure titanium was easy to crack during the cold roll bonding,thereby promoting the formation of an effective mechanical interlock at the interface,which can effectively reduce the minimum reduction rate of the composite plates produced by cold rolling of titanium and aluminium ***,the composite plate subjected to oxidation treatment exhibited high shear strength,particularly at a 43%reduction rate,achieving a commendable value of 117 *** on oxidation treatment and different reduction rates,the annealed composite plates at temperatures of 400,450,and 500°C displayed favorable resistance to interface delamination,highlighting their remarkable strength-plasticity compatibility as evidenced by a maximum elongation of 31.845%.

关键词： TA1 P-Ti/AA6061 composite plate oxidation treatment annealing treatment cold roll bonding

Preparation of Molecular Sieve Catalyst and Application in the Catalytic oxidation treatment of Waste Water

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Chemical Research in Chinese Universities 2001年第Z1期17卷 234-235页

作者： WANG RongMin Department of Chemistry Northwest Normal University

Citric acid is an important additive in foods, cosmetics, medicine and so on, but it discharges about 10 ton of factory effluent when 1 ton of citric acid is produced. The COD of the factory effluent is near 20000 mg/L. The treatment of citric acid factory effluent is a serious problem in environmental chemistry. It is found that molecular sieve support metal complexes have high catalytic activity in aerobic oxidation of alkene [1,2]. In this paper, a kind of molecular sieve catalyst was prepared. The catalyst was used for the treatment of citric acid factory effluent by method of catalytic oxygen oxidation.

关键词： Waste Water oxidation treatment citric acid molecular sieve catalytic activity aerobic oxidation metal complexes method of

Decomposition behavior of titanium hydride treated by surface oxidation

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Rare Metals 2015年第1期34卷 28-33页

作者： Hong-Jie Luo Hao Lin Pei-Hong Chen Guang-Chun Yao School of Materials and Metallurgy Northeastern University Engineering Technology Research Centre of Ministry of Education for Materials Advanced Preparation

Titanium hydride attracts more attention as foaming agent in the fabrication of cellular metal materials. In order to meet most aluminum casting alloy＇s melting properties, the heat treatment processes for Till2 particles were investigated in a rotating device. In the present work, the most two important dynamic parameters, the treating temperature and oxidation interval, were taken under consideration. The decomposition behavior of titanium hydride was measured by differential scanning calorimetry （DSC） and the residual hydrogen content, morphologies and phase conversion were also characterized by hydrogen determinator, scanning electron microscopy （SEM）, and X-ray diffractometer （XRD）, respectively. The results show that the effect of temperature on the formation of oxidation film and decomposition behavior of Till2 is more significant than that of oxidation time. The onset temper- ature and peak value of Till2 decomposition shift from left to right through elevating temperature and extending time. Heat treatment process for Till2 at 500 ℃ between 1 and 5 h in air is favorable for preparing aluminum foam.

关键词： Titanium hydride oxidation treatment Thermal decomposition Aluminum foam

Formation of organic chloride in the treatment of textile dyeing sludge by Fenton system

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Journal of Environmental Sciences 2023年第3期125卷 376-387页

作者： Xiaojun Lai Xun-an Ning Yang Li Nuoyi Huang Yaping Zhang Chenghai Yang Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control Institute of Environmental Health and Pollution ControlSchool of Environmental Science and EngineeringGuangdong University of TechnologyGuangzhou 510006China School of Environmental and Chemical Engineering Foshan UniversityFoshan 528000China

In the oxidation treatment of textile dyeing sludge,the quantitative and transformation laws of organic chlorine are not clear ***,this study mainly evaluated the treatment of textile dyeing sludge by Fenton and Fenton-like system from the aspects of the influence of Cl^(-),the removal of polycyclic aromatic hydrocarbons (PAHs) and organic carbon,and the removal and formation mechanism of organic *** results showed that the organic halogen in sludge was mainly hydrophobic organic chlorine,and the content of adsorbable organic chlorine (AOCl) was 0.30 mg/g (dry sludge).In the Fenton system with pH=3,500 mg/L Cl-,30 mmol/L Fe^(2+)and 30 mmol/L H_(2)O_(2),the removal of phenanthrene was promoted by chlorine radicals (·Cl),and the AOCl in sludge solid phase increased to 0.55 mg/g (dry sludge) at 30 *** to spectral analysis,it was found that ·Cl could chlorinate aromatic and aliphatic compounds (excluding PAHs) in solid phase at the same time,and eventually led to the accumulation of aromatic chlorides in solid *** the oxidation ability of Fenton system increased the formation of organic chlorines in liquid and solid *** weak acidity,the oxidation and desorption of superoxide anion promoted the removal and migration of PAHs and organic carbon in solid phase,and reduced the formation of total organic *** Fenton-like system dominated by nonhydroxyl radical could realize the mineralization of PAHs,organic carbon and organic chlorines instead of *** paper builds a basis for the selection of sludge conditioning methods.

关键词： Textile dyeing sludge oxidation treatment Polycyclic aromatic hydrocarbons (PAHs) Adsorbable organic chlorine(AOCl) Chlorine radicals Superoxide anions

Recent advances in gold-metal oxide core-shell nanoparticles： Synthesis, characterization, and their application for heterogeneous catalysis

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Frontiers of Chemical Science and Engineering 2016年第1期10卷 39-56页

作者： Michelle Lukosi Huiyuan Zhu Sheng Dai Department of Chemistry University of Tennessee Knoxville TN 37916 USA Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA

Heterogeneous catalysis with core-shell struc- tures has been a large area of focus for many years. This paper reviews the most recent work and research in core- shell catalysts utilizing noble metals, specifically gold, as the core within a metal oxide shell. The advantage of the core-shell structure lies in its capacity to retain catalytic activity under thermal and mechanical stress, which is a pivotal consideration when synthesizing any catalyst. This framework is particularly useful for gold nanoparticles in protecting them from sintering so that they retain their size, structure, and most importantly their catalytic efficiency. The different methods of synthesizing such a structure have been compiled into three categories： seed-mediated growth, post selective oxidation treatment, and one-pot chemical synthesis. The selective oxidation of carbon monoxide and reduction of nitrogen containing com- pounds, such as nitrophenol and nitrostyrene, have been studied over the past few years to evaluate the functionality and stability of the core-shell catalysts. Different factors that could influence the catalyst＇s performance are the size, structure, choice of metal oxide shell and noble metal core and thereby the interfacial synergy and lattice mismatch between the core and shell. In addition, the morphology of the shell also plays a critical role, including its porosity, density, and thickness. This review covers the synthesis and characterization of gold-metal oxide core-shell structures, as well as how they are utilized as catalysts for carbon monoxide （CO） oxidation and selective reduction of nitrogen-containing compounds.

关键词： Shell structures oxide core core Shell-core structure oxides oxidation treatment nitrophenols synthesis Noble metals Catalysts Heterogeneous catalysis Mechanical stress carbon monoxide metal oxides shelling

Low-Cost Preparation of Boron Nitride Ceramic Powders

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Journal of Wuhan University of Technology(Materials Science) 2012年第3期27卷 534-537页

作者：李端 State Key Laboratory of Advanced Ceramic Fibers & Composites College of Aerospace & Materials Engineering National University of Defense Technology

The amorphous boron nitride ceramic powders were prepared at 750-950 ℃ by the low-cost urea route, and the effects of preparation temperatures, molar ratios of the raw materials and oxidation treatment on the composition, structure and surface morphology of the products were investigated through FT-IR, XRD and SEM. The results show that the products ceramize and crystallize gradually with the increase of the temperature. When the molar ratio and reaction temperature are 3：2 and 850 ℃, respectively, the products have high purity, compact structure and nice shape. The oxidation treatment at 450 ℃ will not impair the composition and structure of boron nitride but effectively remove the impurities.

关键词： low-cost urea route boron nitride ceramic molar ratios of the raw materials preparation temperatures oxidation treatment

pH-activatable oxidative stress amplifying dissolving microneedles for combined chemo-photodynamic therapy of melanoma

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Asian Journal of Pharmaceutical Sciences 2022年第5期17卷 679-696页

作者： Yanjuan Huang Hualu Lai Jingwen Jiang Xiaoyu Xu Zishan Zeng Lingling Ren Qiuxing Liu Meixu Chen Tao Zhang Xin Ding Chunshun Zhao Shengmiao Cui School of Pharmaceutical Sciences Sun Yat-sen UniversityGuangzhou 510006China School of Traditional Chinese Medicine Guangdong Pharmaceutical UniversityGuangzhou 510006China Guangdong Provincial Key Laboratory of Advanced Drug Delivery Systems Guangdong Pharmaceutical UniversityGuangzhou 510006China

Photodynamic therapy(PDT)-mediated oxidation treatment is extremely attractive for skin melanoma ablation,but the strong hydrophobicity and poor tumor selectivity of photosensitizers,as well as the oxygen-consuming properties of PDT,leading to unsatisfactory therapeutic ***,a tumor acidic microenvironment activatable dissolving microneedle(DHA@HPFe-MN)was developed to realize controlled drug release and excellent chemo-photodynamic therapy of melanoma via oxidative stress *** versatile DHA@HPFe-MN was fabricated by crosslinking a self-synthesized protoporphyrin(PpIX)-ADH-hyaluronic acid(HA)conjugate HA-ADH-PpIX with“iron reservoir”PA-Fe 3+complex in the needle tip via acylhydrazone bond formation,and dihydroartemisinin(DHA)was concurrently loaded in the hydrogel ***-ADH-PpIX with improved water solubility averted undesired aggregation of PpIX to ensure enhanced PDT ***@HPFe-MN with sharp needle tip,efficient drug loading and excellent mechanical strength could efficiently inserted into skin and reach the melanoma sites,where the acidic pH triggered the degradation of microneedles,enabling Fe-activated and DHA-mediated oxidation treatment,as evidenced by abundant reactive oxygen species(ROS)***,under light irradiation,a combined chemo-photodynamic therapeutic effect was achieved with amplified ROS ***,the Fe-catalyzed ROS production of DHA was oxygen-independent,which work in synergy with the oxygen-dependent PDT to effectively destroy tumor *** versatile microneedles with excellent biosafety and biodegradability can be customized as a promising localized drug delivery system for combined chemo-photodynamic therapy of melanoma.

关键词： Melanoma Dissolving microneedles Chemo-photodynamic therapy oxidation treatment Dihydroartemisinin Hyaluronic acid