Preparation of biomass-based@CuNiOS composite catalysts for the reduction of organic dye

doi:10.16085/j.issn.1000-6613.2025-0434

Abstract

Abstract:

Biomass-based@CuNiOS composite catalysts with easy recyclability, efficient water separability, and biodegradability were prepared via a hydrothermal synthesis method. The catalytic performance and reusability of the catalyst were evaluated using methylene blue (MB) and rhodamine B (RhB) as model pollutants. The results showed that the NZ@CuNiOS, NP@CuNiOS, and NB@CuNiOS completely reduced MB within 8min, 16min, and 12min, respectively, and RhB within 26min, 34min, and 32min. In contrast, delignification significantly enhanced the catalytic efficiency. DZ@CuNiOS, DP@CuNiOS, and DB@CuNiOS required only 4min, 8min, and 6min for the complete reduction of MB and 18min, 26min, and 24min for RhB reduction, demonstrating excellent catalytic activity. Moreover, the biomass-based@CuNiOS composite catalysts retained over 84% reduction efficiency after multiple cycles, indicating excellent reusability. The catalysts, featuring environmental friendliness, rapid recovery, high catalytic efficiency and biodegradability, offer a promising strategy for sustainable pollution remediation.

Key words: composites, catalyst, support, waste water, waste treatment

摘要：

采用水热合成法制备了一种便于回收、易于与水分离且可生物降解的生物质基@CuNiOS复合催化剂，并以亚甲基蓝（MB）和罗丹明B（RhB）为模型污染物评估了其催化活性及重复使用性等性能。研究结果表明，以天然木/竹材为基底的NZ@CuNiOS、NP@CuNiOS和NB@CuNiOS分别于8min、16min和12min内完全还原MB，26min、34min和32min内完全还原RhB。相比之下，脱木素处理显著增强了催化剂的催化效率，DZ@CuNiOS、DP@CuNiOS和DB@CuNiOS仅需4min、8min和6min即可完全还原MB，在18min、26min和24min内完全还原RhB，展现出优异的催化活性。此外，生物质基@CuNiOS复合催化剂多次使用后仍保持84%以上的还原效率，展现出良好的重复使用性。该催化剂不仅绿色环保、可快速回收，而且性能优异以及具有可降解特性，为可持续污染治理提供了新思路。

关键词: 复合材料, 催化剂, 载体, 废水, 废物处理

CLC Number:

TQ426.82

BAO Xinde, LIU Biye, HUANG Renwei, HONG Yuhao, GUAN Xin, LIN Jinguo. Preparation of biomass-based@CuNiOS composite catalysts for the reduction of organic dye[J]. Chemical Industry and Engineering Progress, 2025, 44(S1): 185-196.

包新德, 刘必烨, 黄仁伟, 洪宇豪, 关鑫, 林金国. 生物质基@CuNiOS复合催化剂的制备及其在有机染料还原中的应用[J]. 化工进展, 2025, 44(S1): 185-196.

Figures/Tables 8

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