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Ludox hs 30 colloidal silica

Manufactured by Merck Group
Sourced in China

Ludox HS-30 is a colloidal silica solution produced by Merck Group. It is a clear, low-viscosity liquid composed of silica nanoparticles suspended in water. The product has a silica content of approximately 30% by weight.

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3 protocols using ludox hs 30 colloidal silica

1

Preparation of Cellulose-Based Zeolite Composites

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Ludox HS-30 colloidal silica (30 wt% suspension in H2O) was purchased from Sigma-Aldrich (Shanghai, China). Sodium hydroxide (NaOH), aluminium hydroxide (Al(OH)3), calcium chloride (CaCl2), and ethanol were obtained from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China). The porcine plasma was obtained from Yuhang District Slaughter House (Hangzhou, China). Combat Gauze (Z-Medica, USA) was purchased from commercial source. Degreased cotton (material: 100% cotton; quality: high absorbent and soft; absorbency rate: 3–5 s; making standard: USP international standard; whiteness: 80%), which was purchased from Jiaozuo Union Medical Materials Co., Ltd. It is already known that the natural cotton is soaked in alkaline solution, boiled, bleached, washed, and dried to prepare this material. The degreased cotton has considered OH groups. T-shirts made of cotton were purchased from Xiamen Xinhong Extension Trade Co., Ltd. The T-shirt must be consisted of 100% cotton cellulose and be pretreated with alkaline boiling. For any state of cotton, non-cellulose compounds that deposit on the surface of the cotton fiber, such as lignin, wax, and pectin, should be removed to give access to the interaction between zeolite precursor and cellulose in the cotton fibers.
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2

Synthesis and Characterization of Supported Catalysts

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Al2O3 (NanoDur, 30–40
m2/g) was purchased from Alfa Aesar; Zeolites β (CP811C-300)
and ZSM-5 (CBV28014) were obtained from Zeolyst International; ZSM-22
and ZSM-35 were ordered from ACS Material. K2PtCl4 (99.9%) was purchased from Strem Chemicals, Inc. Acetone (99.5%)
was purchased from Millipore Corporation. Phosphoric acid (H3PO4, 85%) was purchased from VWR. Polyethylenimine (PEI, Mw = 25000 by LS, Mn =10000 by GPC), NaBH4 (99%), pentane (anhydrous, 99%),
dodecyldimethylchlorosilane (95%), 1-hexadecanol (99%), trimethylaluminum
(TMA, 97%), tetraethylammonium hydroxide solution (TEAOH, 40 wt %
in H2O), aluminum-tri-sec-butoxide (97%), and LUDOX HS-30
colloidal silica (30 wt % suspension in H2O) were purchased
from Sigma-Aldrich. Deionized water obtained from an EMD Millipore
Milli-DI Water Purification System was used in all experiments.
Ethylene (5% in N2, UHP), isobutene (5% in N2, UHP), hydrogen (5% in N2, UHP), deuterium (5% in N2, UHP), nitrogen (UHP), hydrogen (UHP), argon (UHP), helium
(UHP), CO (5% in helium, UHP), oxygen (10% in argon, UHP), air (ultra
zero) and N2 (research plus) were provided by Airgas company.
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3

Fabrication of Inorganic Adsorbents

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Ludox HS-30 colloidal silica (30 wt% suspension in H2O) was purchased from Sigma-Aldrich (Shanghai, China). Sodium hydroxide (NaOH), aluminium hydroxide (Al(OH)3), copper chloride (CuCl2), cadmium chloride (CdCl2), lead nitrate (Pb(NO3)2) and silver nitrate (AgNO3) were obtained from Sinopharm Chemical Reagent Co., Ltd (Shanghai, China). Two complexing agents: ethylenediaminetetraacetic acid (EDTA) and Diethyldithiocarbamic acid sodium salt (DDTC), were purchased from Aladdin (Shanghai, China). The Cotton, which is consisted of 100% cotton cellulose and was pretreated with alkaline boiling, was bought from Xiamen Xinhong Extension Trade Co., Ltd. E. coli (CMCC(B)44102), together with R2A medium, were obtained from Shanghai Zhiqiao Biological Engineering Co., Ltd. Commercial zeolite faujausite (CAS: 12173-28-3, (Na2O)43(SiO2)106(Al2O3)43) and chabazite (CAS: 12251-32-0, (Na2O)4(SiO2)16(Al2O3)4) was purchased from Meryer (Shanghai) Chemical Technology Co., Ltd.
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