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3 protocols using methylene blue c16h18cln3s xh2o

1

Synthesis and Characterization of Neem-Based Nanomaterials

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Ceric-ammonium nitrate, zirconium oxychloride
octahydrate (ZrOCl2·8H2O, ≥99.5%),
methylene blue (C16H18ClN3S.XH2O), β-cyclodextrin, dopamine hydrochloride, and TMB
were purchased from Sigma-Aldrich. H2O2 (30
wt %), 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide
(MTT), and 2′,7′-dichlorofluorescin diacetate (DCFH-DA)
were purchased from Alfa-Asser. Fresh neem leaves were collected from
the University of North Bengal Campus. All the chemicals are used
in this work were analytical graded and used without further purification.
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2

Porous SiC Ceramics from PU Foam Waste

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The polyurethane (PU) foam template was obtained from electronic device packaging wastes. The SiC precursor was a commercial allylhydridopolycarbosilane (AHPCS, SMP-10 Starfire Systems Inc., East Glenville, NY, USA) with structural formula (SiH2CH2)0.9(Si(allyl)HCH2)0.1. A commercial SBS block copolymer (polystyrene-block-polybutadiene-block-polystyrene, 30 wt%, MW = 140, Sigma-Aldrich, St. Louis, MO, USA) was used as a porogen. Cyclohexane C6H12 (ACS 99+ %, Alfa Aesar Haverhill, MA, USA) was used as a solvent.
For the photodegradation experiments, methylene blue (C16H18ClN3S · xH2O, 97+ %, Sigma-Aldrich) was used as a model organic dye.
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3

Synthesis and Characterization of Copper-based Nanomaterials

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All reagents were purchased from commercial sources and used without further purification: Trithiocyanuric acid [C3H3N3S3] (Sigma-Aldrich, St. Louis, MO, USA, 95.0%), Copper(II) perchlorate hexahydrate [Cu(ClO4)2·6H2O] (Sigma-Aldrich, St. Louis, MO, USA, 98.0%), N,N-Dimethylformamide [(CH3)2-N-CHO] (Fisher Scientific, Waltham, MA, USA, 99.9%), Isopropyl alcohol [C3H8O] (Sigma Aldrich, St. Louis, MO, USA, ≥99.5%), Titanium(IV) isopropoxide [Ti(OC3H7)4] (Sigma Aldrich, St. Louis, MO, USA, 98%), Acetic acid [CH3COOH] (Fluka, 99,8%), Hydrogen chloride [HCl] (Fisher Scientific, Waltham, MA, USA, 37%), Cetyl-trimethyl ammonium chloride [C19H42NCl] (Sigma Aldrich, St. Louis, MO, USA, 25%), Hydrogen peroxide [H2O2] (Sigma Aldrich, St. Louis, MO, USA, 35%), Silver nitrate [AgNO3] (Sigma Aldrich, St. Louis, MO, USA, >99.8%), Nitric acid [HNO3] (Sigma Aldrich, St. Louis, MO, USA, 69%), Zinc acetate dihydrate [Zn(CH3COO)2·2H2O] (ACS, St. Louis, MO, USA, ≥98%), Methylene blue [C16H18ClN3S·xH2O] (Sigma Aldrich, St. Louis, MO, USA, ≥95%). Computational calculations were achieved using the Vienna Ab initio Simulation Package (VASP) version 6.0 (VASP Software GmbH, Vienna, Austria) and Gaussian version 09 (Gaussian, Inc., Wallingford, CT, USA) software packages.
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