Synthesis of palm kernel shell biochar-TiO2 composite for the photocatalytic degradation of organic pollutants

IF 3.4 4区环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES

International Journal of Environmental Science and Technology Pub Date : 2025-07-20 DOI:10.1007/s13762-025-06641-9

D. Ariyanti, Y. A. O. Abdelrazig, A. M. Eriza, A. R. Nurwidiyanto, V. C. Srivastava

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引用次数: 0

Abstract

The study aims at synthesizing and characterizing biochar-TiO₂ composite to remove organic pollutants represented by methylene blue from water. Biochar with high surface area and adsorption capacity was synthesized with the pyrolysis of palm kernel shells at high temperature and inert conditions, while a hydrothermal process was used in preparing the biochar-TiO₂ composite. Various analytical techniques were utilized to investigate the structural and surface characteristics of this composite, confirming both element integration and effectiveness for dye removal. The study also explored the efficiency of adsorption as well as photodegradation concerning methylene blue dye using these composites. Findings indicated that biochar derived from higher pyrolysis temperatures outperformed those obtained at lower temperatures by 65%. Additionally, an increase in catalyst loading resulted in a 53% enhancement in photocatalytic degradation performance when utilizing the biochar-TiO₂ composites with respect to dye treatment. These outcomes propose that biochar-TiO₂ composites represent promising sustainable materials within leading categories for water purification applications.

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棕榈仁壳生物炭- tio2复合材料光催化降解有机污染物的研究

本研究旨在合成并表征生物炭- tio2复合材料去除水中以亚甲基蓝为代表的有机污染物。以棕榈仁壳为原料，在高温惰性条件下热解制备了具有高表面积和高吸附量的生物炭，并采用水热法制备了生物炭- tio2复合材料。利用各种分析技术来研究这种复合材料的结构和表面特征，证实了元素的整合和去除染料的有效性。研究了该复合材料对亚甲基蓝染料的吸附和光降解效率。研究结果表明，高温热解得到的生物炭比低温热解得到的生物炭性能好65%。此外，与染料处理相比，当使用生物炭- tio2复合材料时，催化剂负载的增加导致光催化降解性能提高53%。这些结果表明，生物炭- tio2复合材料在水净化应用的主要类别中是有前途的可持续材料。

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来源期刊

International Journal of Environmental Science and Technology 环境科学-环境科学

CiteScore

5.60

自引率

6.50%

发文量

806

审稿时长

10.8 months

期刊介绍： International Journal of Environmental Science and Technology (IJEST) is an international scholarly refereed research journal which aims to promote the theory and practice of environmental science and technology, innovation, engineering and management. A broad outline of the journal''s scope includes: peer reviewed original research articles, case and technical reports, reviews and analyses papers, short communications and notes to the editor, in interdisciplinary information on the practice and status of research in environmental science and technology, both natural and man made. The main aspects of research areas include, but are not exclusive to; environmental chemistry and biology, environments pollution control and abatement technology, transport and fate of pollutants in the environment, concentrations and dispersion of wastes in air, water, and soil, point and non-point sources pollution, heavy metals and organic compounds in the environment, atmospheric pollutants and trace gases, solid and hazardous waste management; soil biodegradation and bioremediation of contaminated sites; environmental impact assessment, industrial ecology, ecological and human risk assessment; improved energy management and auditing efficiency and environmental standards and criteria.