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Optimization of methyl orange removal from aqueous solution by response surface methodology using spent

Liangzhi LI,Xiaolin LI,Ci YAN,Weiqiang GUO,Tianyi YANG,Jiaolong FU,Jiaoyan TANG,Cuiying HU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 496-502 doi: 10.1007/s11783-013-0578-0

Abstract: In this work, the removal of methyl orange (MO) from aqueous solution using spent tea leaves as the sorbentparameters such as temperature, adsorption time, dose of spent tea leaves, and initial concentration of MOThe optimal conditions could be obtained at an initial concentration of MO of 9.75 mg·L , temperatureUnder the optimized conditions, the maximal removal of MO was 58.2%.indicate that spent tea leaves could be used as an effective and economical adsorbent in the removal of MO

Keywords： spent tea leaves     adsorption     response surface methodology     methyl orange (MO)    

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Photocatalytic degradation of methyl orange using ZnO/TiO composites

Ming GE , Changsheng GUO , Xingwang ZHU , Lili MA , Wei HU , Yuqiu WANG , Zhenan HAN ,

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 3,   Pages 271-280 doi: 10.1007/s11783-009-0035-2

Abstract: precipitation followed by heat treatment in order to investigate their photocatalytic degradation of methylorange (MO) in aqueous suspension under UV irradiation.The degradation efficiencies of MO at various pH values were obtained.Six intermediates were found during the photocatalytic degradation process of quinonoid MO.The degradation pathway of quinonoid MO was also proposed.

Keywords： photocatalytic degradation     methyl orange     ZnO/TiO2 composites     high performance liquid chromatography    

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Synthesis of TiO2 nano-particles and their photocatalytic activity for formaldehyde and methyl orange

XIAO Xinyan, ZHANG Huiping, CHEN Huanqin, LIAO Dongliang

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 178-183 doi: 10.1007/s11705-007-0033-5

Abstract: Their photocatalytic activities for formaldehyde (FA) and methyl orange (MO) degradation were tested

Keywords： prepared     photocatalytic activity     apparent     photocatalytic     orthogonal    

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Mayenite supported perovskite monoliths for catalytic combustion of methyl methacrylate

Zekai ZHANG, Zhijian KONG, Huayan LIU, Yinfei CHEN

Frontiers of Chemical Science and Engineering 2014, Volume 8, Issue 1,   Pages 87-94 doi: 10.1007/s11705-014-1410-5

Abstract: monoliths are washcoated with mayenite, which is a novel Al-based material with the crystal structure of 12MOCatalytic performances of the monoliths are tested for methyl methacrylate combustion.conditions, La Sr MnO monolith washcoated with 12SrO·7Al O shows the best catalytic activity for methyl

Keywords： mayenite     perovskite     catalytic combustion     methyl methacrylate     monolith    

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HPLC determination of glyoxal in aldehyde solution with 3-methyl-2-benzothiazolinone hydrazone

Yamei ZHU, Xiaoli YAO, Shaohui CHEN, Qun CUI, Haiyan WANG

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 117-121 doi: 10.1007/s11705-010-0535-4

Abstract: Based on the absorption property of a diazine that can be formed by reaction of glyoxal and 3-methyl-

Keywords： HPLC     glyoxal     3-methyl-2-benzothiazolinone hydrazone     diazine     dicarbonyl compounds    

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Polymerization of methyl methacrylate catalyzed by mono-/bis-salicylaldiminato nickel(II) complexes and

Jihong LU, Danfeng ZHANG, Qian CHEN, Buwei YU

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 1,   Pages 19-25 doi: 10.1007/s11705-010-0546-1

Abstract: methylaluminoxane (MAO) as cocatalyst, all the nickel complexes exhibited high activities for the polymerization of methylmethacrylate (MMA) and syndiotactic-rich poly(methyl methacrylate) (PMMA) was obtained.

Keywords： late transition metal catalyst     methyl methacrylate     polymerization     salicylaldiminato nickel complexes    

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Accelerated degradation of orange G over a widepH range in the presence of FeVO

Xiaoxia Ou, Jianfang Yan, Fengjie Zhang, Chunhua Zhang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 1, doi: 10.1007/s11783-018-1013-3

Abstract: In this study, FeVO was prepared andused as Fenton-like catalyst to degrade orange G (OG) dye.

Keywords： Azo dye     Degradation     FeVO4     Kinetics     Advanced oxidation processes    

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Efficient degradation of orange II by ZnMn

Qingzhuo Ni, Hao Cheng, Jianfeng Ma, Yong Kong, Sridhar Komarneni

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 956-966 doi: 10.1007/s11705-019-1907-z

Abstract: Its catalytic activity has been investigated for the degradation of orange II dye using three different

Keywords： ZnMn2O4     photo-chemical catalysis     bisulfite     dye degradation    

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Carbon-coated Ni-Co alloy catalysts: preparation and performance for aqueous phase hydrodeoxygenation of methyl

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 3,   Pages 443-460 doi: 10.1007/s11705-021-2079-1

Abstract: In the in-situ aqueous phase hydrodeoxygenation of methyl palmitate with methanol as the hydrogen

Keywords： Stöber method     carbon-coated Ni-Co alloy     in-situ hydrodeoxygenation     methyl palmitate     decarbonylation    

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Acid Orange 7 degradation using methane as the sole carbon source and electron donor

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1468-5

Abstract:

• AO7 degradation was coupled with anaerobic methane oxidation.

Keywords： Azo dyes     AO7 degradation     Anaerobic methane oxidation     Microbial community     ANME-2d    

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Risk analysis methods of the water resources system under uncertainty

Zeying GUI,Chenglong ZHANG,Mo Li,Ping GUO

Frontiers of Agricultural Science and Engineering 2015, Volume 2, Issue 3,   Pages 205-215 doi: 10.15302/J-FASE-2015073

Abstract: The main characteristic of the water resources system (WRS) is its great complexity and uncertainty, which makes it highly desirable to carry out a risk analysis of the WRS. The natural environmental, social economic conditions as well as limitations of human cognitive ability are possible sources of the uncertainties that need to be taken into account in the risk analysis process. In this paper the inherent stochastic uncertainty and cognitive subjective uncertainty of the WRS are discussed first, from both objective and subjective perspectives. Then the quantitative characterization methods of risk analysis are introduced, including three criteria (reliability, resiliency and vulnerability) and five basic optimization models (the expected risk value model, conditional value at risk model, chance-constrained risk model, minimizing probability of risk events model, and the multi-objective optimization model). Finally, this paper focuses on the various methods of risk analysis under uncertainty, which are summarized as random, fuzzy and mixed methods. A more comprehensive risk analysis methodology for the WRS is proposed based on the comparison of the advantages, disadvantages and applicable conditions of these three methods. This paper provides a decision support of risk analysis for researchers, policy makers and stakeholders of the WRS.

Keywords： water resources system     evaluation criterion     optimization model     risk analysis method     uncertainty    

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Trend detection and stochastic simulation prediction of streamflow at Yingluoxia hydrological station, Heihe River Basin, China

Chenglong ZHANG,Mo LI,Ping GUO

Frontiers of Agricultural Science and Engineering 2017, Volume 4, Issue 1,   Pages 81-96 doi: 10.15302/J-FASE-2016112

Abstract: Investigating long-term variation and prediction of streamflow are critical to regional water resource management and planning. Under the continuous influence of climate change and human activity, the trends of hydrologic time series are nonstationary, and consequently the established methods for hydrological frequency analysis are no longer applicable. Five methods, including the linear regression, nonlinear regression, change point analysis, wavelet analysis and Hilbert-Huang transformation, were first selected to detect and identify the deterministic and stochastic components of streamflow. The results indicated there was a significant long-term increasing trend. To test the applicability of these five methods, a comprehensive weighted index was then used to assess their performance. This index showed that the linear regression was the best method. Secondly, using the normality test for stochastic components separated by the linear regression method, a normal distribution requirement was satisfied. Next, the Monte Carlo stochastic simulation technique was used to simulate these stochastic components with normal distribution, and thus a new ensemble hydrological time series was obtained by combining the corresponding deterministic components. Finally, according to these outcomes, the streamflow at different frequencies in 2020 was predicted.

Keywords： Monte Carlo     nonstationary     trend detection     streamflow prediction     decomposition and ensemble     Yingluoxia    

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Synthesis of porous carbon from orange peel waste for effective volatile organic compounds adsorption

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 7,   Pages 942-953 doi: 10.1007/s11705-022-2264-x

Abstract: In this study, porous carbon was synthesized from orange peel by urea-assisted hydrothermal carbonization

Keywords： biomass waste     porous carbon     feedstock composition     urea-assisted hydrothermal carbonization     toluene adsorption     N-doped hydrochar    

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Efficient hydrothermal deoxygenation of methyl palmitate to diesel-like hydrocarbons on carbon encapsulated

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 2,   Pages 139-155 doi: 10.1007/s11705-022-2217-4

Abstract: Stöber method followed by carbonization and tested for in-situ hydrothermal deoxygenation of methyl

Keywords： extended Stöber method     carbon encapsulated Ni–Sn intermetallic compounds     confinement     in-situ hydrothermal deoxygenation     hydrogenation     decarbonylation    

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Research progress of the cause for orange peel of aluminum alloy sheet during tensile deformation

Ma Mingtu,Yang Hongya,Wu Emei and Jin Qingsheng

Strategic Study of CAE 2014, Volume 16, Issue 1,   Pages 4-13

Abstract:

Research progresses of forming causes for orange peel during the tensile deformation of aluminum alloyThis paper first shows the surface morphology of tensile deformation of sheets with orange peel and nonRecent research results of electron backscattered diffraction（EBSD）using the forming causes of orangepeel and the texture measurement results of orange peel and non orange peel using X-ray are furtherto perfect the quantitative description of orange peel formation.

Keywords： orange peel forming     mechanical property     tension fracture     nano hardness     EBSD     X-ray    

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Title Author Date Type Operation

Optimization of methyl orange removal from aqueous solution by response surface methodology using spent

Liangzhi LI,Xiaolin LI,Ci YAN,Weiqiang GUO,Tianyi YANG,Jiaolong FU,Jiaoyan TANG,Cuiying HU

Journal Article

Photocatalytic degradation of methyl orange using ZnO/TiO composites

Ming GE , Changsheng GUO , Xingwang ZHU , Lili MA , Wei HU , Yuqiu WANG , Zhenan HAN ,

Journal Article

Synthesis of TiO2 nano-particles and their photocatalytic activity for formaldehyde and methyl orange

XIAO Xinyan, ZHANG Huiping, CHEN Huanqin, LIAO Dongliang

Journal Article

Mayenite supported perovskite monoliths for catalytic combustion of methyl methacrylate

Zekai ZHANG, Zhijian KONG, Huayan LIU, Yinfei CHEN

Journal Article

HPLC determination of glyoxal in aldehyde solution with 3-methyl-2-benzothiazolinone hydrazone

Yamei ZHU, Xiaoli YAO, Shaohui CHEN, Qun CUI, Haiyan WANG

Journal Article

Polymerization of methyl methacrylate catalyzed by mono-/bis-salicylaldiminato nickel(II) complexes and

Jihong LU, Danfeng ZHANG, Qian CHEN, Buwei YU

Journal Article

Accelerated degradation of orange G over a widepH range in the presence of FeVO

Xiaoxia Ou, Jianfang Yan, Fengjie Zhang, Chunhua Zhang

Journal Article

Efficient degradation of orange II by ZnMn

Qingzhuo Ni, Hao Cheng, Jianfeng Ma, Yong Kong, Sridhar Komarneni

Journal Article

Carbon-coated Ni-Co alloy catalysts: preparation and performance for aqueous phase hydrodeoxygenation of methyl

Journal Article

Acid Orange 7 degradation using methane as the sole carbon source and electron donor

Journal Article

Risk analysis methods of the water resources system under uncertainty

Zeying GUI,Chenglong ZHANG,Mo Li,Ping GUO

Journal Article

Trend detection and stochastic simulation prediction of streamflow at Yingluoxia hydrological station, Heihe River Basin, China

Chenglong ZHANG,Mo LI,Ping GUO

Journal Article

Synthesis of porous carbon from orange peel waste for effective volatile organic compounds adsorption

Journal Article

Efficient hydrothermal deoxygenation of methyl palmitate to diesel-like hydrocarbons on carbon encapsulated

Journal Article

Research progress of the cause for orange peel of aluminum alloy sheet during tensile deformation

Ma Mingtu,Yang Hongya,Wu Emei and Jin Qingsheng

Journal Article