利用简单超声波方法制备的介孔 TiO2-ZrO2@g-C3N4 去除废水中铜离子的功效

IF 6.7 3区 材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY Journal of Science: Advanced Materials and Devices Pub Date : 2024-08-03 DOI:10.1016/j.jsamd.2024.100772
B.A. El-Badry , O. Aldaghri , K.H. Ibnaouf , Alaa M. Younis , Abuzar Albadri , Abdullah H. Alluhayb , Mohamed Ali Ben Aissa , A. Modwi
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引用次数: 0

摘要

本研究介绍了用超声波生产的由氮化碳纳米片、锆和钛氧化物组成的三元复合材料,用于消除铜离子。X 射线衍射技术验证了单斜 ZrO2、锐钛型 TiO2 和 g-C3N4 相的形成,其结晶尺寸分别为 6、11 和 13 nm。通过 TEM、EDX 和 FTIR 分析,分别验证了金属氧化物纳米颗粒与石墨纳米片的分散性、Zr、Ti、O、C 和 N 的元素组成以及特征官能团,证实了纳米复合材料 TiO2-ZrO2@g-C3N4 (TZCN) 的成功形成和组成。该复合材料具有良好的孔隙率,其表面积、孔体积和孔直径值分别为 47.42 m2/g、0.056 cm3 g-1 和 20.3 Å,因此可用于吸附应用。研究了纳米复合材料从水溶液中去除铜离子的吸附能力,以及 pH 值和起始 Cu2+ 浓度的影响。结果表明,吸附过程与 pH 值和起始浓度有关,最大吸附容量为 447.8 mg/g。Cu2+ 的吸附是一个单层化学吸附过程,Langmuir 吸附模型可以很好地描述这一过程,并遵循假-秒序动力学。此外,还提出了 TZCN 纳米复合材料颗粒表面吸附 Cu2+ 离子的合理机制。
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Efficacy of mesoporous TiO2–ZrO2@g-C3N4 produced using a simple ultrasonic approach for copper ion removal from wastewater

The present study describes ultrasonically produced ternary composite material composed of carbon nitride nanosheets, zirconium, and titanium oxides for elimination of copper ions. The formation of monoclinic ZrO2, anatase TiO2, and g-C3N4 phases with respective crystallite sizes 6, 11, 13 nm were verified by the X-ray diffraction technique. The dispersion of the metal oxides nanoparticles with the graphitic nanosheets, the elemental composition of Zr, Ti, O, C and N, and the characteristic functional groups were verified respectively by TEM, EDX, and FTIR analysis that confirmed the successful formation and composition of the nanocomposite TiO2–ZrO2@g-C3N4 (TZCN). The good porosity of the composite that show a surface area, pore volume, and pore diameter values of 47.42 m2/g, 0.056 cm3 g−1, and 20.3 Å that nominate it for adsorption application. The adsorption capabilities of the nanocomposite were studied for copper ion removal from an aqueous solution, as well as the impacts of pH and starting Cu2+ concentration. The results show that the adsorption process is pH and starting concentration-dependent, with a maximum adsorption capacity of 447.8 mg/g. The Cu2+ adsorption is a monolayer chemisorption process that is well described by the Langmuir adsorption model and follows pseudo-second-order kinetics. Moreover, a plausible mechanism for Cu2+ ion adsorption on the surface of TZCN nanocomposite particles is proposed.

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来源期刊
Journal of Science: Advanced Materials and Devices
Journal of Science: Advanced Materials and Devices Materials Science-Electronic, Optical and Magnetic Materials
CiteScore
11.90
自引率
2.50%
发文量
88
审稿时长
47 days
期刊介绍: In 1985, the Journal of Science was founded as a platform for publishing national and international research papers across various disciplines, including natural sciences, technology, social sciences, and humanities. Over the years, the journal has experienced remarkable growth in terms of quality, size, and scope. Today, it encompasses a diverse range of publications dedicated to academic research. Considering the rapid expansion of materials science, we are pleased to introduce the Journal of Science: Advanced Materials and Devices. This new addition to our journal series offers researchers an exciting opportunity to publish their work on all aspects of materials science and technology within the esteemed Journal of Science. With this development, we aim to revolutionize the way research in materials science is expressed and organized, further strengthening our commitment to promoting outstanding research across various scientific and technological fields.
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