One-step facile hydrothermal synthesis of flowerlike Ce/Fe bimetallic oxides for efficient As(V) and Cr(VI) remediation: Performance and mechanism

Wen, Zhipan; Ke, Jun; Xu, Jinlei; Guo, Sheng; Zhang, Yalei; Chen, Rong

doi:10.1016/j.cej.2018.03.034

Cited by 101 publications

(34 citation statements)

References 62 publications

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“…In addition to water shortage, water pollution caused by the discharge of organic and toxic pollutants is becoming a challenge for the sustainable development of the world economy and society. [1][2][3][4][5] In recent years, the photocatalytic route has proven to be a completely green technique that avoids the use of any auxiliary material in the one-step thorough elimination of pollutants under UV-light irradiation. [6][7][8][9] It has been reported that various semiconductor metal oxides, such as TiO 2 , ZnO, Bi 2 O 3 , BiOBr, AgBr, etc., can serve as ideal photocatalysts due to their properties of low toxicity, high catalytic efficiency and signicant stability.…”

Section: Introductionmentioning

confidence: 99%

Multi-shelled ZnO decorated with nitrogen and phosphorus co-doped carbon quantum dots: synthesis and enhanced photodegradation activity of methylene blue in aqueous solutions

Song

et al. 2019

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Multi-shelled ZnO decorated with nitrogen and phosphorus co-doped carbon quantum dots: synthesis and enhanced photodegradation activity of methylene blue in aqueous solutions

Song

et al. 2019

RSC Adv.

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“…Thus, the removal process of F − , Ca 2+ , and Mg 2+ could be divided into three stages. The first linear part indicates that the removal of F − , Ca 2+ , and Mg 2+ was initially controlled by boundary diffusion—this process is known as boundary layer diffusion of the solute molecule . The fast initial stage of F − indicates the rapid attainment of equilibrium .…”

Section: Resultsmentioning

confidence: 99%

“…The fast initial stage of F − indicates the rapid attainment of equilibrium . The second stage is assigned to the intraparticle step, and the final stage is adsorption equilibrium . The equations for the different stages for F − , Ca 2+ , and Mg 2+ are listed in Table .…”

Section: Resultsmentioning

confidence: 99%

Impact of Ca²⁺ and Mg²⁺ on the Removal of F⁻ by Magnesium Potassium Phosphate

Deng

Wang

2019

CLEAN Soil Air Water

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This study investigates the influence of Ca2+ and Mg2+ on the removal of F− by magnesium potassium phosphate (MPP) from water. The kinetic experiments reveal that the F− concentration decreased from 3.5 to 3.31 mg L−1 in a single (F−) system and to 1.45 mg L−1 in a ternary system (F−, Ca2+, and Mg2+) after 1 min, respectively. Thus, the F− removal efficiencies are found to increase by about 53% with the co‐active effect of Ca2+ and Mg2+ in the solution. Moreover, Ca2+ and Mg2+ are almost completely removed in the F−, Ca2+, and Mg2+ system. According to the pseudo‐first‐order modeling, the rate constants k for F−, Ca2+, and Mg2+ are 0.00348, 0.0106, and 0.0159 min−1 respectively; thus, Mg2+ > Ca2+ > F−. In the ternary system, the removal efficiencies are 53.29–66.03% for F−, 99.99–100% for Ca2+, and 87.21–95.19% for Mg2+ with initial pH 5–10. The removal efficiencies of F− increases with increases in initial concentrations of F−, Ca2+, and Mg2+. The removal of F− is governed by two routes: 1) adsorption by electrostatic interactions and outer sphere surface complexation; 2) co‐precipitation with Ca3(PO4)2, CaHPO4, Mg3(PO4)2, and Mg(OH)2.

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“…-Balance the bridge before experiment; the initial resistance of the probe is between 1 and 50 ohms, and the current is guaranteed not to exceed lmA by balancing the voltage of the bridge. -Apply thermal pulse to the sample and record the temperature within the pre-determined measuring time [10][11][12][13][14].…”

Section: Measurement Of Thermal Conductivitymentioning

confidence: 99%

Construction of visual 3-D fabric reinforced composite thermal performance prediction system

2019

THERM SCI

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In view of the construction of a visualized 3-D thermal performance prediction system for fabric reinforced composites, the thermal constants analyzer was used to analyze and compare the thermal conductivity of the 3-D fabric reinforced composites by experimental methods, such as fiber volume fraction, internal braiding angle, and different yarn reduction methods and fabric structures. The factors influencing the thermal conductivity of 3-D fabric reinforced composites were studied, and the principle of thermal conductivity was analyzed. The thermal expansion coefficients of 3-D fabric reinforced composites in X-and Y-directions are one order of magnitude smaller than those in Z-directions. When aramid fabric is used as reinforcement, the composites with negative thermal expansion coefficients can be designed. The research results provide the necessary basis for the design, application and theoretical research of the 3-D fabric reinforced composites in heat conduction. Through the research of this paper, it lays a foundation for the process selection, performance design and structure optimization of this kind of material, and promotes the further application of 3-D braided composites.

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One-step facile hydrothermal synthesis of flowerlike Ce/Fe bimetallic oxides for efficient As(V) and Cr(VI) remediation: Performance and mechanism

Cited by 101 publications

References 62 publications

Multi-shelled ZnO decorated with nitrogen and phosphorus co-doped carbon quantum dots: synthesis and enhanced photodegradation activity of methylene blue in aqueous solutions

Multi-shelled ZnO decorated with nitrogen and phosphorus co-doped carbon quantum dots: synthesis and enhanced photodegradation activity of methylene blue in aqueous solutions

Impact of Ca²⁺ and Mg²⁺ on the Removal of F⁻ by Magnesium Potassium Phosphate

Construction of visual 3-D fabric reinforced composite thermal performance prediction system

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One-step facile hydrothermal synthesis of flowerlike Ce/Fe bimetallic oxides for efficient As(V) and Cr(VI) remediation: Performance and mechanism

Cited by 101 publications

References 62 publications

Multi-shelled ZnO decorated with nitrogen and phosphorus co-doped carbon quantum dots: synthesis and enhanced photodegradation activity of methylene blue in aqueous solutions

Multi-shelled ZnO decorated with nitrogen and phosphorus co-doped carbon quantum dots: synthesis and enhanced photodegradation activity of methylene blue in aqueous solutions

Impact of Ca2+ and Mg2+ on the Removal of F− by Magnesium Potassium Phosphate

Construction of visual 3-D fabric reinforced composite thermal performance prediction system

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Impact of Ca²⁺ and Mg²⁺ on the Removal of F⁻ by Magnesium Potassium Phosphate