Rapid organism degradation function of Fe-based alloys in high concentration wastewater

Yang, Jinxiang; Bian, Xiufang; Bai, Yuanyuan; Lv, Xiaoqian; Wang, Pan

doi:10.1016/j.jnoncrysol.2012.06.002

Cited by 40 publications

(5 citation statements)

References 24 publications

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“…The authors [16] summarizes the main technologies utilized for the removal of pollutants. Several years ago, it was discovered that amorphous metal alloys based on magnesium [17], iron [18][19][20][21][22][23][24][25][26], aluminium [26,27] able to discolour and destroy dyes of different structures. In general basic dyes are cationic compounds that are used for dyeing acid-group containing fibers, usually synthetic fibers like modified polyacryl.…”

Section: Introductionmentioning

confidence: 99%

Effect of Short Heat Treatment of Amorphous Metal Alloy on Decolorization Dye Mendola Blue

Khrushchyk,

Balin,

Kordan

et al. 2024

J. Ecol. Eng.

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It was established that the change in the structure of the amorphous metal alloy (AMA) as a result of heat treatment of the amorphous metal alloy Al 87 Gd 5 Ni 4 Fe 4 at T = 645±1 K significantly affects the decolorization of the dye Basic Blue 6/Mendola Blue (BB6/MB) at pH = 1.7±0.3. The MB solution with a concentration of 4.39 μM was decolorized by 99% within 27 hours, in the case of annealed AMAs for 30, 45, 60 min., which is 3.8 times more effective than in the case of as-cast AMAs. A change in the AMA structure due to annealing was established by X-ray analisys; kinetic analysis was performed based on experimental data and the kinetic parameters (kobs, t1/2, ksa, etc.) of the MB decolorization reaction were calculated. The surface of AMAs after reaction with aniline dye MB and the proposed scheme of decolorization of aniline dye MB using AMAs Al 87 Gd 5 Ni 4 Fe 4 were suggested.

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Section: Introductionmentioning

confidence: 99%

Effect of Short Heat Treatment of Amorphous Metal Alloy on Decolorization Dye Mendola Blue

Khrushchyk,

Balin,

Kordan

et al. 2024

J. Ecol. Eng.

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“…[ 1 ] These harmful substances are carcinogenic and teratogenic and will continue to accumulate in the biological chain, ultimately endangering human health. [ 2 ] So far, there are three most commonly methods of sewage treatment: biological method, physical method, and chemical method. [ 3 ] Biological methods include Anaero‐bic/Oxic (A/O) method, activated sludge method, etc.…”

Section: Introductionmentioning

confidence: 99%

Adsorption and Degradation of Methylene Blue Aqueous Solution by Fe‐based Amorphous Alloy

Li,

Zhai,

Tian

et al. 2023

Physica Status Solidi (a)

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Fe-based amorphous ribbons with the brand name 1K101 can adsorb methylene blue (MB) solution. The adsorption reaction is multilayer adsorption, in which chemical adsorption plays a major role. There are also some processes like physical adsorption, liquid phase diffusion, and internal diffusion of particles. The adsorption reaction is exothermic and spontaneous, which is more favorable at low temperatures. During the adsorption process, the entropy value decreases, the degree of disorder and freedom of the solution decreases, and the structure also changes. What's more, H 2 O 2 , pH, ribbons's dosage, dye's concentration, and temperature affect the degradation performance of 1K101 on MB. Degradation reactions are mainly controlled by surface chemical reactions, including chemical reduction reactions and adsorption. When c(H 2 O 2 ) is 15 mM, pH is 2, ribbons' dosage is 0.9 g, c(MB) is 20 mg L À1 , temperature is 338 K, the degradation effect is the best. The optimal conditions with lowest overall cost obtained under the orthogonal experiment are: c(H 2 O 2 ) = 20 mM, pH = 2, ribbons's dosage = 0.7 g, c(MB) = 20 mg L À1 , and T = 338 K. Overall, 1K101 amorphous ribbon can be utilized to treat MB solution, and its degradation effect is better than adsorption effect, which can provide new ideas for the reuse of waste amorphous ribbon and the treatment of azo dye wastewater.

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Section: Introductionmentioning

confidence: 99%

“…In recent years, metallic glasses (MGs), as a promising catalyst material with ultrahigh degradation efficiency to organic contaminants, have attracted more and more attention, due to their unique disordering atomic structures, high chemical stability, and low reaction activation energy [10][11][12][13][14][15][16][17][18]. It has been reported that, compared with ZVI and their crystallized counterparts, MG ribbons showed much better degradation performances and durability [10][11][12][13]. Jia et al [14] reported that the generation rate of HO• by using Fenton-like catalyst of Fe-Si-B MG ribbons was one order of magnitude higher over that of the Fe-based catalysts (such as Fe 2+ , α-Fe, iron oxides), thus significantly enhancing the dye degradation rate.…”

Section: Introductionmentioning

confidence: 99%

Degradation performance and mechanism toward methyl orange via nanoporous copper powders fabricated by dealloying of ZrCuNiAl metallic glassy precursors

Gu¹,

Wang²,

Hui³

et al. 2022

Nanotechnology

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The catalyst of nanoporous Cu (NP-Cu) powders, with the chemical composition of Cu79.63Ni6.85O13.53 (at.%), was successfully fabricated by dealloying of Zr-Cu-Ni-Al metallic glassy precursors. The as-prepared NP-Cu powders, co-existing with Cu2O phase on Cu ligament surface, had a three-dimensional (3D) network porous structure. The NP-Cu powders/H2O2 system showed superior catalytic degradation efficiency toward azo dyes in both acidic (pH 2) and neutral (pH 7) environments. Moreover, the cyclic tests indicated that this powder catalyst also exhibited good durability. A novel degradation mechanism of NP-Cu powders/H2O2 was proposed: the high degradation performance in acidic environment was mainly derived from heterogeneous reaction involved with a specific pathway related to Cu3+ to produce HO•, while in neutral environment it was primarily resulted from homogeneous reaction with the generation of HO• from the classical Cu-based Fenton-like process. This work indicates that the NP-Cu powders have great potential applications as catalysts for wastewater treatments.

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Rapid organism degradation function of Fe-based alloys in high concentration wastewater

Cited by 40 publications

References 24 publications

Effect of Short Heat Treatment of Amorphous Metal Alloy on Decolorization Dye Mendola Blue

Effect of Short Heat Treatment of Amorphous Metal Alloy on Decolorization Dye Mendola Blue

Adsorption and Degradation of Methylene Blue Aqueous Solution by Fe‐based Amorphous Alloy

Degradation performance and mechanism toward methyl orange via nanoporous copper powders fabricated by dealloying of ZrCuNiAl metallic glassy precursors

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