Preparation of a magnetic molecularly imprinted polymer using g-C3N4–Fe3O4 for atrazine adsorption

Liu, Guangyang; Yang, Xin; Li, Tengfei; She, Yongxin; Wang, Shanshan; Wang, Jing; Zhang, Min; Jin, Fen; Jin, Maojun; Shao, Hua; Shi, Mengqi

doi:10.1016/j.matlet.2015.07.157

Cited by 47 publications

(14 citation statements)

References 17 publications

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“…The main peaks of Fe 3 O 4 appeared at 35.83 o , 43.18 o , 53.17 o , 57.43 o and 63.04 o , well presented to the lattice plane (311), (400), (422), (511) and (440), respectively[42]. overlapped with the peaks for MoO 3 .…”

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confidence: 81%

Novel magnetic Fe3O4/g-C3N4/MoO3 nanocomposites with highly enhanced photocatalytic activities: Visible-light-driven degradation of tetracycline from aqueous environment

Jiang

et al. 2020

PLoS ONE

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In the present work, a series of magnetically separable Fe 3 O 4 /g-C 3 N 4 /MoO 3 nanocomposite catalysts were prepared. The as-prepared catalysts were characterized by XRD, EDX, TEM, FT-IR, UV-Vis DRS, TGA, PL, BET and VSM. The photocatalytic activity of photocatalytic materials was evaluated by catalytic degradation of tetracycline solution under visible light irradiation. Furthermore, the influences of weight percent of MoO 3 and scavengers of the reactive species on the degradation activity were investigated. The results showed that the Fe 3 O 4 /g-C 3 N 4 /MoO 3 (30%) nanocomposites exhibited highest removal ability for TC, 94% TC was removed during the treatment. Photocatalytic activity of Fe 3 O 4 /g-C 3 N 4 /MoO 3 (30%) was about 6.9, 5, and 19.9-fold higher than those of the MoO 3 , g-C 3 N 4 , and Fe 3 O 4 /g-C 3 N 4 samples, respectively. The excellent photocatalytic performance was mainly attributed to the Z-scheme structure formed between MoO 3 and g-C 3 N 4 , which enhanced the efficient separation of the electron-hole and sufficient utilization charge carriers for generating active radials. The highly improved activity was also partially beneficial from the increase in adsorption of the photocatalysts in visible range due to the combinaion of Fe 3 O 4. Superoxide ions (�O 2 −) was the primary reactive species for the photocatalytic degradation of TC, as degradation rate were decreased to 6% in solution containing benzoquinone (BQ). Data indicate that the novel Fe 3 O 4 /g-C 3 N 4 /MoO 3 was favorable for the degradation of high concentrations of tetracycline in water.

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confidence: 81%

Novel magnetic Fe3O4/g-C3N4/MoO3 nanocomposites with highly enhanced photocatalytic activities: Visible-light-driven degradation of tetracycline from aqueous environment

Jiang

et al. 2020

PLoS ONE

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“…The main detection technologies for food quality and safety are instrumental analysis and rapid tests. The instrumental methods, such as gas chromatography [1], liquid chromatography [2], mass spectrometry (MS) [3], capillary electrophoresis [4], supercritical fluid chromatography [5], gas chromatography-MS [6], and liquid chromatography-MS [7], are undoubtedly powerful. All of these methods possess high sensitivity, good accuracy, and high stability, but they are often inconvenient, expensive, time-consuming, and require large, expensive analytical instruments and trained operators [8].…”

Section: Introductionmentioning

confidence: 99%

Application of Gold-Nanoparticle Colorimetric Sensing to Rapid Food Safety Screening

Liu

Huang

et al. 2018

Sensors

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161

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Due to their unique optical properties, narrow size distributions, and good biological affinity, gold nanoparticles have been widely applied in sensing analysis, catalytic, environmental monitoring, and disease therapy. The color of a gold nanoparticle solution and its maximum characteristic absorption wavelength will change with the particle size and inter-particle spacing. These properties are often used in the detection of hazardous chemicals, such as pesticide residues, heavy metals, banned additives, and biotoxins, in food. Because the gold nanoparticles-colorimetric sensing strategy is simple, quick, and sensitive, this method has extensive applications in real-time on-site monitoring and rapid testing of food quality and safety. Herein, we review the preparation methods, functional modification, photochemical properties, and applications of gold nanoparticle sensors in rapid testing. In addition, we elaborate on the colorimetric sensing mechanisms. Finally, we discuss the advantages and disadvantages of colorimetric sensors based on gold nanoparticles, and directions for future development.

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“…It is usually found in literature studies with materials that remove one or two of these contaminants 22,[38][39][40][41] . However, considering that it is common to find several contamination forms in drinking water and not just one, studying a material with multi-pollutant removal potential is extremely valuable, since it could make the water treatment process simpler and more cost-effective [42][43][44] .…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Impregnation of Copper Oxide Nanoparticles on Activated Carbon through Green Synthesis for Water Pollutant Removal

et al. 2017

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In this article was developed a green synthesis of CuO nanoparticles on vegetal activated carbon (VAC), using pomegranate leaf extract as reducing and stabilizing agent in the removal of multiple pollutants. The impregnated carbons with CuO nanoparticles were characterized morphologically and structurally. The SEM and XRD analysis, after carbons modification, showed that the surface structure remained porous with CuO nanoparticles sizes between 40 and 78 nm. As concern to the contaminants atrazine, caffeine and diclofenac, it is observed that the maximum adsorption capacities practically did not suffer interference by the presence of 1.5% Cu nanoparticles, keeping their values very close to those obtained with pure carbon. The nitrate removal was favored by the impregnation of CuO nanoparticles, from 0.93 mg g-1 to 4.09 mg g-1. The results are promising and demonstrate that it is possible to obtain VAC impregnated whit nanoparticles of CuO by a non-polluting and low cost method.

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Preparation of a magnetic molecularly imprinted polymer using g-C3N4–Fe3O4 for atrazine adsorption

Cited by 47 publications

References 17 publications

Novel magnetic Fe3O4/g-C3N4/MoO3 nanocomposites with highly enhanced photocatalytic activities: Visible-light-driven degradation of tetracycline from aqueous environment

Novel magnetic Fe3O4/g-C3N4/MoO3 nanocomposites with highly enhanced photocatalytic activities: Visible-light-driven degradation of tetracycline from aqueous environment

Application of Gold-Nanoparticle Colorimetric Sensing to Rapid Food Safety Screening

Synthesis and Impregnation of Copper Oxide Nanoparticles on Activated Carbon through Green Synthesis for Water Pollutant Removal

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