Effective adsorptive removal of tetracycline from aqueous solution by Zn-BTC@SBC derived from sludge:Experimental study and density functional theory (DFT) calculations

Deng, Zhikang; Zhu, Jinyao; Li, Ping; Du, Zhenggang; Qi, Xuebin; Chen, Xi; Mu, Ruimin; Zeng, Chenyu; Ma, Yongfei; Zhang, Zulin

doi:10.1016/j.molliq.2023.122283

Cited by 18 publications

(2 citation statements)

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“…With this understanding, the surface functionality would promote the π−π conjugation between SCB-750 and SMX, as well as the H bonding between oxygen-containing functional groups of SMX and − OH of SCB-750. 99,100 Notably, the SMX removal was highly influenced by synthesis, characterization, and water chemistry operational parameters insights of SCB-750. The possible removal mechanism routes followed by SCB-750 for SMX removal can be observed in Figure 12b.…”

Section: Reusability and Regenerationmentioning

confidence: 99%

“…In contrast, the amino, carboxyl functional groups, and N-heteroaromatic rings in SMX were evident in blue-positive regions, functioning as π-electron-receptors. With this understanding, the surface functionality would promote the π–π conjugation between SCB-750 and SMX, as well as the H bonding between oxygen-containing functional groups of SMX and – OH of SCB-750. , …”

Section: Smx Removal By Scb-750mentioning

confidence: 99%

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Unveiling Biochar Quality Index: A Factor Analysis Mediated Ranking Approach to Select Best Ranked Biochar for Adsorptive Removal of Sulfamethoxazole

Chauhan,

Taksal,

Chowdhury

et al. 2024

Ind. Eng. Chem. Res.

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In recent times, biochars have been synthesized for multiple applications, yet the global biochar industry lacks a standardized quantitative framework for assessing quality, particularly for the abatement of emerging contaminants from aqueous environments via adsorption. The present study establishes a first of its kind effort to construct a Biochar Quality Index (BCQI) using five distinct agroforestry waste biomasses with its application focused on the adsorptive removal of a model sulfonamide antibiotic, i.e., sulfamethoxazole (SMX). Physicochemical attributes of biochars synthesized at 550 °C, 650 °C, and 750 °C were quantified using selected parameters. Through correlation analysis, parameter selection was executed, followed by weight derived through factor analysis (FA). The BCQI scores were then arithmetically aggregated for biochar ranking and categorization. The FA results indicate that sugarcane bagasse biochar prepared at 750 °C (SCB-750) ranks highest, scoring 84.39, while rice husk biochar prepared at 550 °C ranks lowest with a BCQI score of 18.34. The BCQI calculations were further verified via batch adsorption experiments for SMX removal. The maximum SMX removal and adsorption capacity obtained by SCB-750 were 71.77% and 35.09 mg g −1 , respectively, at 10 mg L −1 initial SMX concentration and 0.8 g L −1 dose. Additionally, the kinetics and isotherm studies along with the effect of water chemistry operational parameters and reusability experiments were investigated. On the basis of the results, an SMX removal mechanism was proposed.

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Section: Reusability and Regenerationmentioning

confidence: 99%

Section: Smx Removal By Scb-750mentioning

confidence: 99%