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Yun Lu, Sujun Guan, Liang Hao and Hiroyuki Yoshida
This review presents the latest results of studies directed at photocatalyst coatings of titanium dioxide (TiO2) prepared by mechanical coating technique (MCT) and its application. Compared with traditional coating techniques, MCT is a simple, low cost a...
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Gaige Swanson, Jeff B. Langman, Andrew W. Child, Frank M. Wilhelm and James G. Moberly
The mobility of a metal in mining-impacted sediments is determined by the environmental conditions that influence the metal?s oxidation state and bonding environment. Coeur d?Alene Lake, USA, has been impacted by legacy mining practices that allowed the ...
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Wojciech Szkliniarz, Grzegorz Moskal, Agnieszka Szkliniarz and Radoslaw Swadzba
One of the major barriers limiting the suitability of TiAl intermetallic alloys for use in the demanding aircraft and automotive industries is their susceptibility to degradation as a result of oxidation at temperatures exceeding 760 °C. Paper presents t...
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José Luis Hernández-Martínez, Jorge Adrián Perera-Burgos, Gilberto Acosta-González, Jesús Alvarado-Flores, Yanmei Li and Rosa María Leal-Bautista
Remote sensing is an invaluable research tool for the analysis of marine and terrestrial water bodies. However, it has some technical limitations in waters with oligotrophic conditions or close to them due to the low spectral response of some water param...
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Shangye Chu, Xu Zeng, Hai Lin and Yuting Zhu
The performance of catalytic wet oxidation of excess activated sludge derived from pharmaceutical wastewater treatment over a Cu/?-Al2O3 catalyst was investigated. The experiments were performed with a stainless steel autoclave reactor by using the prepa...
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Lucas B. de Faria, Guilhermina F. Teixeira, Andréia C. F. Alves, José J. Linares, Sérgio B. Oliveira, Artur J. Motheo and Flavio Colmati
This work presents the electrochemical degradation of the herbicide Diuron by anodic oxidation on a Ti/Ru0.3Ti0.7O2 metal mixed oxide anode using sulfate as the electrolyte. The study includes the influence of Diuron concentration and current density on ...
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Yan Zhao, Fei Luo and Rui Zhou
In this study, Fe3O4 magnetic nanoparticles (MNPs) were loaded on a-MnO2 nanowires using an improved hydrothermal synthesis method combined with an ultrasonic coprecipitation method, the loading ratio was optimized, the efficiency of the prepared Fe3O4/a...
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Atiqa Rahmawati,Aulia Iin Saputri,Ignatius Gunardi
Pág. 21 - 28
Glucose is the most abundant monosaccharide in nature, glucose obtained from cellulose and starch, it is many used to degradation process, and for the production of several organic compounds, one of the degradation products of glucose is an HMF (5-hydrox...
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Andrei Nazarov, Flavien Vucko and Dominique Thierry
Hydrogen in combination with mechanical stress can lead to rapid degradation of high-strength steels through environmentally assisted cracking mechanisms. The scanning Kelvin probe (SKP) was applied to automotive martensitic steel grade MS1500 in order t...
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Jian Wang, Xiaohui Luo and Yanhua Sun
In this study, efforts were made to oxidize the Ti3SiC2 coating surface to improve its wear resistance by producing oxide layers and healing microcracks that initiated from the thermal sprayed process. Tribological behaviors of the thermal oxidation-trea...
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Jinjue Liang, Shimin Chen, Changwei Zou, Canxin Tian, Zesong Wang and Shijun Liao
Cr?Si?O?N coatings with different oxygen contents were deposited by multi-arc ion plating, where various O2/(N2 + O2) reactive gas rates were adopted. The XRD and XPS results showed that the CrN crystals disappeared with the increasing of the oxygen flux...
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Bo Zhao, Wenkun Zhu, Tao Mu, Zuowen Hu and Tao Duan
A novel Pt/ACF (Pt supported on activated carbon fibers) electrode was successfully prepared with impregnation and electrodeposition method. Characterization of the electrodes indicated that the Pt/ACF electrode had a larger effective area and more activ...
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Patipat Thanompongchart, Parin Khongkrapan, Nakorn Tippayawong
Pág. 31 - 36
Plasma assisted, partial oxidation reforming of biogas is considered to be a promising technology to produce synthesis gas. In this work, a 0.1 kW gliding arc plasma reformer was employed to investigate the effects of biogas composition and oxygen a...
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Lei Sun, Chong Li, Zhijun Xu, Lianhai Tai, Yue Cao and Xiaowu Zhang
Insufficient stability of the top plate at the corner of an easily combustible coal seam comprehensive mining face may lead to a natural fire within the goaf. While corner sealing is crucial for minimizing air leakage, current sealing methods struggle to...
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Hangli Zhang, Shujuan Wang, Ji Shu and Hongyu Wang
Doxycycline (DOX), a typical antibiotic, is harmful to aquatic ecosystems and human health. This study presents DOX removal by potassium ferrate (Fe(VI)) and montmorillonite and investigates the effect of Fe(VI) dosage, reaction time, initial pH value, m...
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Shuya Wang, Fen Wang, Ruying Li and Min Ji
To investigate the treatment performance of employing the anaerobic ammonia oxidation (anammox) biofilm process to treat the iron-containing industrial wastewater with a low carbon?nitrogen ratio and obtain an optimal condition, the effects of elevated e...
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Carmen Rizzo, Maria Papale and Angelina Lo Giudice
Background: The cold-adapted Idiomarina sp. 185 from Antarctic shoreline sediment and the mesophilic Idiomarina sp. A19 from the brackish Lake Faro (Italy) were screened for their efficiency in biosurfactant production by a temperature-mediated approach,...
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Olga Papadopoulou and Panayota Vassiliou
The local patterns at the interfaces of corrosion stratification, developed on two archaeometallurgical bronzes (a Cu-Sn-Pb and a Cu-Zn-Sn-Pb alloy), in the as-cast condition, were assessed by OM and SEM-EDS systematic elemental chemical analyses. Previo...
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Hyeoksun Choi and Sanghwa Oh
The abiotic reduction of NO3- to NO2-?coupled with the oxidation of labile organic materials such as citric acid, syringic acid and natural organic matter (NOM) and NH4+ through the goethite-mediated Fe(III)/Fe(II) cycle under anaerobic condition?was inv...
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Ying Li, Shengke Yang, Qianli Jiang, Jie Fang, Wenke Wang and Yanhua Wang
The sludge from the water supply plant was investigated to remove fluoride ions from the water. To improve the adsorption ability, the original sludge sample was treated with fuel oxidation, pyrolysis, hydrochloric acid, and sulphuric acid methods, and h...
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