Biomass activated carbon derived from golden needle mushroom root for the methylene blue and methyl orange adsorption from wastewater

IF 5.6 1区农林科学 Q1 AGRICULTURAL ENGINEERING

Industrial Crops and Products Pub Date : 2024-11-21 DOI:10.1016/j.indcrop.2024.120051

Xianmiao Pan, Na Zhao, Hu Shi, He Wang, Fangtao Ruan, Hongjie Wang, Quan Feng

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Abstract

Removing textile dye by activated carbon adsorption from wastewater has become a focus issue owing to its easy operation, rapid adsorption ability, and relatively high removal efficiency. Biomass-based activated carbon is an excellent candidate due to its renewability and easy accessibility, but the biomass resources like peel and stem are usually with relatively long growth cycle and the removal efficiency within a wide pH range is relatively low. Thus, a biomass carbon source with a short growth cycle and activated carbon with high removal efficiency within a wide pH value needs to be explored. In this study, golden needle mushroom root-based activated carbon (GNMACs) activated by H₃PO₄ was successfully prepared, characterized, and applied in methylene blue (MB) and methyl orange (MO) removal. The carbonization temperature (400 °C ∼ 600 °C), the GNMACs dosage (5 mg ∼ 25 mg), and the dye solution pH (4 ∼ 12) were controlled. The results indicated the optimal adsorption performance can be achieved with the carbonization temperature of 550 °C and the adsorbent dosage of 20 mg. The GNMACs carbonized at 550 ℃ possessed a porous structure with the mesopore volume of 1.095 cm³/g, the specific surface area of 802.987 m²/g, and the average pore diameter of 5.87 nm. Within a wide pH range from 4 to 12, GNMACs removed MB with an efficiency above 98.57 % and MO with an efficiency above 98.77 %. Additionally, the adsorption process of MB and MO onto GNMACs followed the pseudo-second-order kinetic model and the Redlich-Peterson isothermal adsorption model, with adsorption capacities of 816.04 mg/g and 286.99 mg/g, respectively. The adsorption was facilitated by hydrogen bonding, electrostatic attraction, π-π interaction, and pore filling. The results indicated the GNMACs can be used as an adsorbent to remove MB and MO from the wastewater.

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利用金针菇根提取的生物质活性炭吸附废水中的亚甲基蓝和甲基橙

利用活性炭吸附去除废水中的纺织染料因其操作简便、吸附速度快、去除效率相对较高而成为一个焦点问题。生物质基活性炭因其可再生性和易获取性而成为极佳的候选材料，但果皮和茎秆等生物质资源通常生长周期相对较长，在较宽的 pH 值范围内去除效率相对较低。因此，需要探索一种生长周期短、在较宽 pH 值范围内去除效率高的生物质碳源和活性炭。本研究成功制备了经 H3PO4 活化的金针菇根基活性炭（GNMACs），对其进行了表征，并将其应用于亚甲蓝（MB）和甲基橙（MO）的去除。对碳化温度（400 °C ～ 600 °C）、GNMACs 用量（5 mg ～ 25 mg）和染料溶液 pH 值（4 ～ 12）进行了控制。结果表明，碳化温度为 550 ℃、吸附剂用量为 20 mg 时，吸附性能最佳。在 550 ℃ 下碳化的 GNMACs 具有多孔结构，中孔体积为 1.095 cm3/g，比表面积为 802.987 m2/g，平均孔径为 5.87 nm。在 4 至 12 的宽 pH 值范围内，GNMACs 清除 MB 的效率超过 98.57%，清除 MO 的效率超过 98.77%。此外，MB 和 MO 在 GNMACs 上的吸附过程遵循伪二阶动力学模型和 Redlich-Peterson 等温吸附模型，吸附容量分别为 816.04 mg/g 和 286.99 mg/g。氢键、静电吸引、π-π 作用和孔隙填充促进了吸附。结果表明，GNMACs 可用作一种吸附剂来去除废水中的 MB 和 MO。

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来源期刊

Industrial Crops and Products 农林科学-农业工程

CiteScore

9.50

自引率

8.50%

发文量

1518

审稿时长

43 days

期刊介绍： Industrial Crops and Products is an International Journal publishing academic and industrial research on industrial (defined as non-food/non-feed) crops and products. Papers concern both crop-oriented and bio-based materials from crops-oriented research, and should be of interest to an international audience, hypothesis driven, and where comparisons are made statistics performed.