研究双壳贝类贝壳的成分和特性,将其作为光催化应用的有前途的生物不同材料(实际应用实例)

IF 3.8 3区 化学 Q2 CHEMISTRY, PHYSICAL
Catalysts Pub Date : 2023-12-24 DOI:10.3390/catal14010016
Aleksey V. Zaitsev, Ivan A. Astapov
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引用次数: 0

摘要

本文研究了沿海排放物中的双壳类软体动物(Crenomytilus grayanus、Callista brevisiphonata 和 Mizuhopecten yessoensis)贝壳的成分和特性,以探讨将其用于光催化水处理系统的可能性。研究考虑了蛤壳作为光催化剂前体的粉末材料以及光催化涂层载体的应用。研究表明,构成贝壳材料的主要相是碳酸钙,有两种晶体结构--方解石和文石。在所有研究的蛤壳中,无机杂质的含量都不超过 1%。主要成分是碳酸钙成分中的元素,这证实了所研究材料的高度生物差异性。根据蛤壳结构的生理和环境特征,可以观察到蛤壳成分中有机成分的不同含量。研究了碎蛤壳的粒度特征(平均直径、比表面积和分布模式)。结果表明,具有最低孔隙率(2.91%)的 Mizuhopecten yessoensis 贝壳的抗弯强度最大值为 5 兆帕,抗压强度最大值为 2 兆帕。研究了在不同温度和光照度下,完整贝壳和破碎贝壳对四种有机染料的吸附和光吸收过程。以 Mizuhopecten Yessoensis 碎贝和二氧化钛为基础,获得了功能材料(CaxTiyOz),并对其形态和光催化性能进行了研究。举例说明了如何实际利用蛤壳作为光催化涂层的载体。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Study of the Composition and Properties of Bivalve Mollusk Shells as Promising Bio-Indifferent Materials for Photocatalytic Applications (Example of Practical Use)
This paper studies the composition and properties of shells of bivalve mollusks (Crenomytilus grayanus, Callista brevisiphonata, and Mizuhopecten yessoensis) from coastal discharges with a view to the possibility of their use in photocatalytic water treatment systems. The clam shells are considered in terms of application in the form of a powder material as a precursor for creating photocatalysts, and also as a carrier of photocatalytic coatings. It was shown that the main phase composing the shell material was calcium carbonate in two crystallographic modifications—calcite and aragonite. The presence of inorganic impurities in all studied clam shells did not exceed one mass percent. The main share was made up of elements included in the composition of calcium carbonate, which confirmed the high bio-indifference of the materials under study. Depending on the physiological and environmental features of the structure of clam shells, different contents of the organic component in their composition were observed. The granulometric characteristics of crushed clam shells (average diameter, specific surface area, and distribution modality) were studied. It was shown that the maximum values of bending strength of 5 MPa and compressive strength of 2 MPa are characterized by Mizuhopecten yessoensis shells with the lowest porosity of 2.91%. The features of sorption and photosorption processes of both whole and crushed shells in relation to four organic dyes at different temperatures and degrees of illumination were studied. Based on crushed shells of Mizuhopecten Yessoensis and titanium dioxide, functional materials (CaxTiyOz) were obtained, and their morphology and photocatalytic properties were studied. An example of the practical use of clam shells as a carrier of a photocatalytic coating is given.
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来源期刊
Catalysts
Catalysts CHEMISTRY, PHYSICAL-
CiteScore
6.80
自引率
7.70%
发文量
1330
审稿时长
3 months
期刊介绍: Catalysts (ISSN 2073-4344) is an international open access journal of catalysts and catalyzed reactions. Catalysts publishes reviews, regular research papers (articles) and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.
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