Removal of metal ions from electrochemical decontamination solution using organic acids

Naznin, Marufa; Choi, Jiyeon; Shin, Won Sik; Choi, Jaeyoung

doi:10.1080/01496395.2017.1375955

Cited by 14 publications

(8 citation statements)

References 17 publications

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“…The chamber pressure was maintained at 16 mTorr. The remaining nickel oxide was removed with 1% oxalic acid (7 h, 20 °C), , and the samples were rinsed with DI water and dried with N 2 gas.…”

Section: Experimental Sectionmentioning

confidence: 99%

Room Temperature Fabrication of Macroporous Lignin Membranes for the Scalable Production of Black Silicon

et al. 2022

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Rising global demand for biodegradable materials and green sources of energy has brought attention to lignin. Herein, we report a method for manufacturing standalone lignin membranes without additives for the first time to date. We demonstrate a scalable method for macroporous (∼100 to 200 nm pores) lignin membrane production using four different organosolv lignin materials under a humid environment (>50% relative humidity) at ambient temperatures (∼20 °C). A range of different thicknesses is reported with densely porous films observed to form if the membrane thickness is below 100 nm. The fabricated membranes were readily used as a template for Ni 2+ incorporation to produce a nickel oxide membrane after UV/ozone treatment. The resultant mask was etched via an inductively coupled plasma reactive ion etch process, forming a silicon membrane and as a result yielding black silicon (BSi) with a pore depth of >1 μm after 3 min with reflectance <3% in the visible light region. We anticipate that our lignin membrane methodology can be readily applied to various processes ranging from catalysis to sensing and adapted to large-scale manufacturing.

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Section: Experimental Sectionmentioning

confidence: 99%

Room Temperature Fabrication of Macroporous Lignin Membranes for the Scalable Production of Black Silicon

et al. 2022

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“…Substrates were etched using an ICP power of 1200 W, RIE power of 20 W, etch time of 1 to 4 min, CHF 3 (80 sccm), and SF 6 (15 sccm) gases at 20 mTorr. Following pattern transfer, the remaining iron oxide and nickel oxide hard masks were removed via oxalic acid treatment. , …”

Section: Experimental Sectionmentioning

confidence: 99%

“…Following pattern transfer, the remaining iron oxide and nickel oxide hard masks were removed via oxalic acid treatment. 53,64 Characterization. Atomic force microscopy (AFM) (Park systems, XE7) was operated in non-contact mode under ambient conditions using a silicon microcantilever probe tip (force constant of 42 N m −1 ).…”

Section: ■ Conclusionmentioning

confidence: 99%

Large-Area Fabrication of Vertical Silicon Nanotube Arrays via Toroidal Micelle Self-Assembly

et al. 2021

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We present a highly scalable, room-temperature strategy for fabricating vertical silicon nanotube arrays derived from a toroidal micelle pattern via a water vapor-induced block copolymer (BCP) self-assembly mechanism. A polystyrene-b-poly(ethylene oxide) (PS-b-PEO) BCP system can be self-assembled into toroidal micelle structures (diameter: 400−600 nm) on a PS-OH-modified substrate in a facile manner contrasting with other complex processes described in the literature. It was found that a minimum PS-b-PEO thickness of ∼86 nm is required for the toroidal self-assembly. Furthermore, a water vapor annealing treatment at room conditions (∼25 °C, 60 min) is shown to vastly enhance the ordering of micellar structures. A liquid-phase infiltration process was used to generate arrays of iron and nickel oxide nanorings. These oxide structures were used as templates for pattern transfer into the underlying silicon substrate via plasma etching, resulting in large-area 3D silicon nanotube arrays. The overall simplicity of this technique, as well as the wide potential versatility of the resulting metal structures, proves that such room-temperature synthesis routes are a viable pathway for complex nanostructure fabrication, with potential applicability in fields such as optics or catalysis.

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“…En este sentido este proceso ofrece la posibilidad de recuperar el ácido clorhídrico y los iones metálicos a temperatura ambiente. Este potencial de recuperación hace que esta técnica sea de interés de investigación y permita generar una nueva opción para el procesamiento y disminución de residuos del decapado (Burckhard et al, 1995;Gylien & Salkauskas, 1998;Naznin et al, 2017a;Tripathi, 2020).…”

Section: Tratamiento De Los Vertimientos De Los Baños De Decapadounclassified

Reclamation of acid pickling waste: A facile route for preparation of single-phase Fe3O4 nanoparticle

Zhang

Lü

Tang

et al. 2015

Journal of Magnetism and Magnetic Materials

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Removal of metal ions from electrochemical decontamination solution using organic acids

Cited by 14 publications

References 17 publications

Room Temperature Fabrication of Macroporous Lignin Membranes for the Scalable Production of Black Silicon

Room Temperature Fabrication of Macroporous Lignin Membranes for the Scalable Production of Black Silicon

Large-Area Fabrication of Vertical Silicon Nanotube Arrays via Toroidal Micelle Self-Assembly

Reclamation of acid pickling waste: A facile route for preparation of single-phase Fe3O4 nanoparticle

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