Journal of Advanced Oxidation Technologies最新文献_第8页

Reaction characteristics of oxygen generation from plate-like potassium superoxide within a confined space 板状超氧化钾在密闭空间内产氧的反应特性

Journal of Advanced Oxidation Technologies Pub Date : 2017-01-01 DOI: 10.1515/jaots-2016-0186

Yan-xiang Jia, Ying-shu Liu, San-Lang Wang

引用次数: 3

Characterization of B-TiO2 Synthesized under Different Conditions of Hydrolysis 不同水解条件下合成B-TiO2的表征

Journal of Advanced Oxidation Technologies Pub Date : 2016-07-01 DOI: 10.1515/jaots-2016-0217

M. May-Lozano, R. López-Medina, E. Rojas-García, I. Hernández-Pérez, S. Martínez-Delgadillo

{"title":"Characterization of B-TiO2 Synthesized under Different Conditions of Hydrolysis","authors":"M. May-Lozano, R. López-Medina, E. Rojas-García, I. Hernández-Pérez, S. Martínez-Delgadillo","doi":"10.1515/jaots-2016-0217","DOIUrl":"https://doi.org/10.1515/jaots-2016-0217","url":null,"abstract":"Abstract TiO2 photocatalysts doped with boron (2% boron) with different water/alkoxide molar ratio were synthesized by the sol-gel method. The prepared samples were characterized by BET, RAMAN, FTIR, SEM and Photoluminiscence. A catalyst recycling study and a respirometry tests with activated sludge were realized. When the amount of water was modified during synthesis a noticeable change in the crystal structures, number of surface oxygens, the pore size and the length of the agglomerates were observed. A mesoporous anatase titania was present as the dominant phase, but rutile was present at high and low water concentration. The samples with the highest photocatalytic activity showed the presence of small agglomerates, high porosity, additional oxygen vacancies, the higher specific area and additional number of Ti-O-Ti bonds. The presence of boron is observed in the tricoordinated form that promotes the formation of oxygen vacancies and the photocatalytic properties. The formation of oxygen vacancies on the titania surface are related to the transition of the coordination of titanium (Ti4+ to Ti6+) and best degradation of Orange II is related to a closer coordination to Ti5+. B-TiO2 samples can be easily regenerated and no toxic by-products were produced during the photocatalytic reactions.","PeriodicalId":14870,"journal":{"name":"Journal of Advanced Oxidation Technologies","volume":"51 1","pages":"326 - 337"},"PeriodicalIF":0.0,"publicationDate":"2016-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90490854","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Catalytic Ozonation of Bisphenol A in Aqueous Medium by Mn-Fe/Al2O3 Catalyst Mn-Fe/Al2O3催化臭氧氧化双酚A的研究

Journal of Advanced Oxidation Technologies Pub Date : 2016-07-01 DOI: 10.1515/jaots-2016-0220

Yanfang Liu, Guixia Li, Zhili Zhang, Xiang Gao, Jianrui Niu, Junna Zhao, Zaixing Li

引用次数: 5

Degradation of Organoarsenicals by Heterogeneous Photocatalysis using ZnO, TiO2 and UVA ZnO、TiO2和UVA非均相光催化降解有机砷的研究

Journal of Advanced Oxidation Technologies Pub Date : 2016-07-01 DOI: 10.1515/jaots-2016-0211

C. Miranda, P. Santander, J. Matschullat, B. Daus, J. Yáñez, H. Mansilla

引用次数: 5

Preparation of Calcium Titanate Based on the Cotton Template Method and its Simultaneous Removal Performance to Heavy Metals and Organic Pollutants in Water 基于棉花模板法制备钛酸钙及其对水中重金属和有机污染物的同时去除性能

Journal of Advanced Oxidation Technologies Pub Date : 2016-01-01 DOI: 10.1515/jaots-2016-0101

Dong Zhang, Shiyan Liu, X. Song, Zhen-yu Xu, Bing Yang, Lei-yang Chen, Yi-chuan Tan, Fujie Li

{"title":"Preparation of Calcium Titanate Based on the Cotton Template Method and its Simultaneous Removal Performance to Heavy Metals and Organic Pollutants in Water","authors":"Dong Zhang, Shiyan Liu, X. Song, Zhen-yu Xu, Bing Yang, Lei-yang Chen, Yi-chuan Tan, Fujie Li","doi":"10.1515/jaots-2016-0101","DOIUrl":"https://doi.org/10.1515/jaots-2016-0101","url":null,"abstract":"Abstract Adopting cotton as the bio-templates, calcium titanate with special morphology (CTCTO) was produced by solgel template method and characterized by XRD, SEM, BET and FTIR. The adsorption and photocatalytic performance had been studied. At the same time, the ability of CTCTO for removing heavy metals in complexing and the chemical oxygen demand (CODCr) in water was investigated. The results show that the calcium titanate prepared with this method existed in the shape of broken microtubules. CTCTO had strong adsorption and photocatalysis capacity. In the medium of pH 5-7, when the catalyst loading is 1 g/L, for the initial concentrations of lead 250 mg/L, of cadmium35 mg/L, of nickel 70 mg/L and of methylene blue 10 mg/L, lead, cadmium and nickel are all adsorbed completely within 20 min, and the degradation rate of methylene blue reaches 84.13% within 120 min. For the heavy metals in complexing state, the removal rates of cadmium, lead and nickel reached 100%, and the value of CODCr also decreased by 56% after one hour of catalyzed sorption. A new method for the simultaneous removal on heavy metals and organics is developed, and it has been used in the treatment of water samples and some satisfying results are obtained.","PeriodicalId":14870,"journal":{"name":"Journal of Advanced Oxidation Technologies","volume":"40 1","pages":"18 - 9"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75154975","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 9

Comparative Investigation of Simulated Solar-driven Photocatalytic Performance of g-C3N4 Prepared by Different Precursors 不同前驱体制备的g-C3N4模拟太阳驱动光催化性能的比较研究

Journal of Advanced Oxidation Technologies Pub Date : 2016-01-01 DOI: 10.1515/jaots-2016-0120

Yujun Si, J. Zhong, Jianzhang Li, Xinlu Liu, Wei Hu, Jiabo Song, Fengjia Zhang, Kewei Liu, Ke-Jing Huang, Songlin Wu, Ruhao Yang, T. Zeng, Minjiao Li

引用次数: 1

Effects of Calcination Temperature on Properties of 0.5%Al-3%In-TiO2 Photocatalyst Prepared using Sol-gel Method 焙烧温度对溶胶-凝胶法制备0.5%Al-3%In-TiO2光催化剂性能的影响

Journal of Advanced Oxidation Technologies Pub Date : 2016-01-01 DOI: 10.1515/jaots-2016-0116

Wenjie Zhang, Chuanguo Li, Zheng Ma, Li-Lan Yang, Hongbo He

引用次数: 14

Fenton’s Oxidation Kinetics, Pathway, and Toxicity Evaluation of Diethyl Phthalate in Aqueous Solution 邻苯二甲酸二乙酯在水溶液中的Fenton氧化动力学、途径和毒性评价

Journal of Advanced Oxidation Technologies Pub Date : 2016-01-01 DOI: 10.1515/jaots-2016-0117

Qinqin Zhang, Chuan Wang, Yangming Lei

{"title":"Fenton’s Oxidation Kinetics, Pathway, and Toxicity Evaluation of Diethyl Phthalate in Aqueous Solution","authors":"Qinqin Zhang, Chuan Wang, Yangming Lei","doi":"10.1515/jaots-2016-0117","DOIUrl":"https://doi.org/10.1515/jaots-2016-0117","url":null,"abstract":"Abstract A comprehensive study of the chemical oxidation degradation of diethyl phthalate (DEP) was conducted through Fenton processes. Effects of various operating parameters that considerably affect DEP decomposition were investigated, including solution pH, H2O2, Fe2+, and DEP concentration. The removal efficiency of DEP achieved 98% under reaction conditions of pH value of 3.0, concentration of 0.3 mM of Fe2+, and 6.0 mM of H2O2 after 170 min. In general, DEP degradation in Fenton process was found to occur in two stages, with an extremely fast stage and then a slow one, as a result of change of H2O2 and Fe2+ initial concentration. Based on the pseudo-steady-state hypothesis of hydroxyl radical formed by the Fenton reaction, a kinetic model for DEP degradation has been proposed which describes the effect of decomposition byproducts on the oxidation reaction. The experiment results also were in good agreement with Behnajady-Modirshahla-Ghanbery (BMG) kinetic model. During the degradation process, seven degradation intermediates of DEP were detected out by means of GC/MS, including ethyl 2-hydroxybenzoate, ethyl 3-hydroxybenzoate, phthalic anhydride, benzoic acid ethyl ester, malonic acid, oxalic acid, and acetic acid. Probable degradation pathway of DEP by the Fenton reaction was also proposed. Inhibitory effects of DEP and intermediate products were investigated in aqueous solution with Photobacterium phosphoreum. Findings indicated that the solution was not completely detoxified even if DEP completely disappeared, further post-treatment was recommended. All these observations have significant potential applications and require further investigation.","PeriodicalId":14870,"journal":{"name":"Journal of Advanced Oxidation Technologies","volume":"94 1","pages":"125 - 133"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85491993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 16

On the Difference Between Air-cleaning and Self-cleaning 论空气清洗与自清洗的区别

Journal of Advanced Oxidation Technologies Pub Date : 2016-01-01 DOI: 10.1515/jaots-2016-0205

N. Abbas, Y. Paz

{"title":"On the Difference Between Air-cleaning and Self-cleaning","authors":"N. Abbas, Y. Paz","doi":"10.1515/jaots-2016-0205","DOIUrl":"https://doi.org/10.1515/jaots-2016-0205","url":null,"abstract":"Abstract There is a common notion in the field of photocatalysis that the same requirements for air purification hold also for self-cleaning surfaces, and that the same product may be adequate for the two purposes. This notion was tested on cementitious objects by comparing the activity of a series of commercially available TiO2 products in oxidizing NO versus their ability to de-coloring adsorbed dyestuff. Care was made to perform these measurements under UV light in order to avoid coupling with sensitization effects due to absorption by the dyes. In general, introducing TiO2 powder into the matrix (type II samples) was found to yield higher activities in comparison with over-coating with a film made from colloidal nano-particles (type I samples), despite the larger surface coverage of the latter. Within the type II samples a negative correlation between self-cleaning and air-decontamination was found, suggesting that some products are more adequate for self-cleaning while others are more adequate for NO oxidation. In addition, macro-corrugation may play a large role; the higher the corrugation of the surface was, the more active were the samples in the oxidation of NO. The opposite was found in the de-coloring of rhodamine B. Strange enough, 20% of the coated films prepared from colloidal nano-particulate suspensions showed very poor performance towards NO oxidation. This finding is disturbing, since at this stage, bad experience from a specific product might be translated into a disappointment from photocatalysis per-se.","PeriodicalId":14870,"journal":{"name":"Journal of Advanced Oxidation Technologies","volume":"23 1","pages":"218 - 226"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86997931","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mono- and Dual-modified Titania with a Ruthenium(II) Complex and Silver Nanoparticles for Photocatalytic Degradation of Organic Compounds 钌(II)配合物和纳米银单、双改性二氧化钛光催化降解有机化合物的研究

Journal of Advanced Oxidation Technologies Pub Date : 2016-01-01 DOI: 10.1515/jaots-2016-0204

Shuaizhi Zheng, Kunlei Wang, Zhishun Wei, K. Yoshiiri, M. Braumüller, S. Rau, B. Ohtani, E. Kowalska

{"title":"Mono- and Dual-modified Titania with a Ruthenium(II) Complex and Silver Nanoparticles for Photocatalytic Degradation of Organic Compounds","authors":"Shuaizhi Zheng, Kunlei Wang, Zhishun Wei, K. Yoshiiri, M. Braumüller, S. Rau, B. Ohtani, E. Kowalska","doi":"10.1515/jaots-2016-0204","DOIUrl":"https://doi.org/10.1515/jaots-2016-0204","url":null,"abstract":"Abstract Ruthenium(II) complex with the phosphonate anchoring groups of [Ru(tbbpy)2(4,4′-(CH2PO3H2)2bpy)]2+ (RuIICP2, tbbpy= 4,4′-di-tert-butyl-2,2′-bipyridine) and silver nanoparticles (Ag NPs) were used as single or comodifiers on titania surface. For the dual modified titania, two deposition sequences were applied to obtain Ag/RuIICP2 and RuIICP2/Ag, in which at first ruthenium(II) or silver was deposited on titania, respectively. Diffuse reflectance spectroscopy (DRS), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) confirmed the existence of modifiers, and the effect of ruthenium(II) on the properties of Ag NPs regarding their crystallite sizes and oxidation states distributions. Photocatalytic activities of the modified titania were investigated for oxidative decomposition of acetic acid and 2-propanol, and anaerobic dehydrogenation of methanol. Under UV/Vis irradiation for the methanol dehydrogenation, co-modified titania of Ag/RuIICP2 showed the best activity, while for acetic acid degradation, singly modified titania with silver showed the highest activity. In contrary, under visible light irradiation, singly fabricated titania with ruthenium(II) complex possessed the highest photocatalytic performance for 2-propanol oxidation. For all the three tested photocatalytic degradation reactions, Ag/RuIICP2 exhibited better photocatalytic activities than RuIICP2/Ag, indicating the different properties caused by opposite deposition sequences, e.g., DRS indicated the smaller sizes of metal NPs and XPS suggested the binding of ruthenium(II) to Ag NPs for RuIICP2/Ag, which in consequence influenced the overall photocatalytic outcome.","PeriodicalId":14870,"journal":{"name":"Journal of Advanced Oxidation Technologies","volume":"116 1","pages":"208 - 217"},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79300280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7