Abstract
Biomass is known to efficiently adsorb pollutants from wastewater. In this paper, we demonstrated that a new antistatic oil-cleaning material can be prepared and assembled by using two surfactants, alkyl polyglucosides (APG) and dimethyl octadecyl hydroxy ethyl ammonium nitrate (SN), to modify calcined mussel shell powder (CMSP) through a two-step hydrotherm-assisted adsorption. The pore size and structure of CMSP was measured by BET and a contact angle meter was used to characterize the surface wetting ability. XRD, FTIR, XPS, SEM, TEM, and HRTEM were employed to determine the surface structure of CMSP modified by surfactants APG and SN (MMO). In order to further characterize properties of the surface morphology and crystal structure, the HRTEM was employed to show that the MMO surface had a single crystal structure: calcite, with a crystal plane spacing of 0.2467 nm. The surface of MMO appeared to be fluffy and disperse. The antistatic and degreasing ability of as-prepared samples (MMO) was evaluated by a ZC-36 high resistance meter and BD-457 whiteness meter. The results showed that when the calcination temperature of CMSP reached 1000 °C, and the addition amount of APG and SN was 0.8 g and 0.16 g, it had an optimum antistatic effect with a surface resistivity (Rs) of 1.35 × 108 Ω, and a detergency rate to oil of 17.35%. This study aims to embrace a green solution to reduce environmental pressure and make use of waste, which is of great significance to environmental protection.
Highlights
Up to the present, natural bio-based materials derived from the low-cost, nontoxic, and renewable resources have attracted great interest to many material scientists [1,2,3,4]
We have demonstrated that calcined mussel shell powder (CMSP) decorated with surfactants via a hydrothermalIn summary, we have demonstrated that CMSP decorated with surfactants via a hydrothermalassisted adsorption could significantly improve both its oil-cleaning and antistatic properties
Surface morphology of the as-prepared sample is highly dispersive, compared with CMSP and MMG, The surface morphology of the as-prepared sample is highly dispersive, compared with CMSP and and it can be seen from scanning electron microscopy (SEM) images that the surface morphology of the shell powder has undergone
Summary
Natural bio-based materials derived from the low-cost, nontoxic, and renewable resources have attracted great interest to many material scientists [1,2,3,4]. Have fabricated a versatile bio-based material (CH-PAA-T) via simple thermal cross-linking chitosan and polyacrylic acid for efficient water purification by removing insoluble oil, soluble toxic dyes, and heavy metal ions from water, simultaneously. The flow of oil in the pipelines and tanks can generate electrostatic charge due to relative movements, such as flow, filtration, jetting, shock, and sedimentation [8]. All of this static electricity can cause serious accidents in oil tanks or in pipelines, leading to shocking damage and economic losses. Antistatic oil-cleaning materials will become one of the research directions for ensuring the safety of petrochemical enterprises. Zheng et al [13] synthesized an antistatic PP (polypropylene) sheet sample, which is made of Tween and Span surfactants mixed with PP, and the best sample has a resistivity of 1010 Ω/sq
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