Multifunctional magnetic bio-nanoporous carbon material based on zero-valent iron, Angelicae Dahuricae Radix slag and graphene oxide: An efficient adsorbent of pesticides

Du, Huiling; Lei, Yutian; Chen, Wenli; Li, Fengchao; Li, Huimin; Deng, Wei; Jiang, Guihua

doi:10.1016/j.arabjc.2021.103267

Cited by 11 publications

(3 citation statements)

References 45 publications

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“…Substantial researches have been demonstrated that Radix Angelica Dahurica has various therapeutic activities for headaches, asthma, hypertension, and colds 1 . The annual production of Radix Angelica Dahurica is estimated to be as high as 18,000 tons in China 2 . Recently, with the rapid development of TCM, a large number of waste residues of TCM, including Radix Angelica Dahurica residue (RAR) has remained.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, RAR contains various kinds of chemical components including alcohols, esters, alkaline, and small amount of ketone 3 . At present, RAR has been applied for the adsorption of methylene blue 3,4 and pesticides 2 . The novelty application of RAR is an efficient strategy to eliminate the environmental problem brought by TCM.…”

Section: Introductionmentioning

confidence: 99%

“…3 At present, RAR has been applied for the adsorption of methylene blue 3,4 and pesticides. 2 The novelty application of RAR is an efficient strategy to eliminate the environmental problem brought by TCM.…”

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confidence: 99%

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High efficiency removal of ibuprofen in water using activated carbon derived from Radix Angelica Dahurica residue

Zhang,

et al. 2023

Env Prog and Sustain Energy

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The exploitation and utilization of Traditional Chinese medicine have annually produced 30 million tons of waste residues including Radix Angelica Dahurica residue (RAR), which raised environmental concerns. Meantime, the non‐steroidal anti‐inflammatory drug of ibuprofen (IBP) is an emerging contaminant in the aquatic environment, annually producing up to 9000 tons in China. After extracting the active substance, RAR is prepared as activated carbon (AC) for the purification of IBP wastewater. Two kinds AC modified without (RAR‐AC) and with phosphoric acid (M‐RAR‐AC) were characterized by FT‐IR, TG, BET and SEM. The phosphoric acid activation contributed to the high BET surface area (564.9914 m2 g−1) and large total pore volume (0.4894 cm3 g−1). M‐RAR‐AC showed 7.7 folds (15 min) and 2.7 folds (30 min) higher extent of IBP removal compared to commercial activated carbon (C‐AC). The enhancement of IBP removal with M‐RAR‐AC was investigated further by varying initial pollutant concentration, absorbent dosage, temperature, pH and rotating speed. Especially, temperature nearly has no effect on IBP removal by M‐RAR‐AC. Isotherm and kinetic studies suggested IBP was adsorbed on the heterogeneous surface in multilayer form and chemisorption played the dominant role in IBP removal. IBP removal of 93.3 ± 0.1% and 64.2 ± 2.8% was achieved for first and fifth cycle, respectively. The IBP removal on M‐RAR‐AC may be accomplished by a variety of interactions such as electrostatic attraction, pore‐filling, hydrogen bonding, and π‐π interaction. These findings provide new insights into the utilization of RAR for preparing AC and highlight the potential applications for treating industrial wastewater.

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Section: Introductionmentioning

confidence: 99%