Cobalt-gadolinium modified biochar as an adsorbent for antibiotics in single and binary systems

Hu, Bin; Tang, Yuhong; Wang, Xinting; Wu, Lieshan; Nong, Jiajing; Yang, Xiaona; Guo, Jianqiang

doi:10.1016/j.microc.2021.106235

Cited by 28 publications

(10 citation statements)

References 94 publications

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“…Physical properties include the specific surface area (SSA), particle size distribution, the bulk density, pore size and pore volume distribution [55]. These parameters are directly linked to the biochar production conditions such as reactor temperature and residence time, addition of oxygen containing media in the process (air, pure oxygen, CO2 and steam) and/or post production processing to modify the product [38]. In the work of Xiong et al, five different biochars from various feedstocks were applied on the adsorption of epoxiconazole (EPC) fungicide.…”

Section: Physical Proprietiesmentioning

confidence: 99%

See 1 more Smart Citation

A comprehensive review of biochar in removal of organic pollutants from wastewater: Characterization, toxicity, activation/functionalization and influencing treatment factors

Zeghioud

Fryda

Djelal

et al. 2022

Journal of Water Process Engineering

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Section: Physical Proprietiesmentioning

confidence: 99%

“…Scanning electron microscope (SEM) and transmission electron microscope (TEM) are valuable tools to evaluate the development of surface structure, porosity and pores distribution of biochar before and after modification [38].…”

Section: Surface Structure and Morphologymentioning

confidence: 99%

A comprehensive review of biochar in removal of organic pollutants from wastewater: Characterization, toxicity, activation/functionalization and influencing treatment factors

Zeghioud

Fryda

Djelal

et al. 2022

Journal of Water Process Engineering

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“…For example, a method was developed to enhance removal of Congo red by three pyrolalized biochar from agro-waste (Acacia auriculiformis) at 500 °C and modified with CaCl 2 , AlCl 3 and FeCl 3 as metal salts [25]. Sorption of ciprofloxacin (CIP) and tetracycline (TC) in single-and binary-solute systems was studied by a sponge-like structure of cobalt and gadolinium modified biochar (MBC) and the reported maximum capacities were established as 44.44 and 119.05 mg/g for CIP and TC, respectively [26]. Oxidation with 5% of HNO 3 /H 2 SO 4 mixture was performed to enhance the long-term oxidative aging of the produced corncob biochar material to improve the adsorptive removal of some nanoplastics as polystyrenes (PSNPs) [27].…”

Section: Introductionmentioning

confidence: 99%

Functional surface homogenization of nanobiochar with cation exchanger for improved removal performance of methylene blue and lead pollutants

Mahmoud

Ursueguía

Mahmoud

et al. 2023

Biomass Conv. Bioref.

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Biochar materials are good examples of sustainable adsorbents with appreciable recent interests and applications in water treatment. The disadvantage of using unmodified pristine biochars in water treatment is mainly related to the inhomogeneous distribution of various surface functional groups. Therefore, the current study is designed to functionalize and homogenize the surface of a selected nanobiochar with a cation exchanger using hydrothermal and solvothermal microwave irradiation. The adsorption behavior of immobilized Amberlite cation exchanger onto Cynara scolymus nanobiochar (ACE@CSNB) was compared versus the pristine Cynara scolymus nanobiochar (CSNB). ACE@CSNB was categorized as a typical mesoporous material (mean pore size = 2.238 nm) and the FT-IR spectra confirmed surface modification via two characteristic peaks at 1140–1250 cm−1 and 1030–1070 cm−1 for R-SO3− with S = O. The TPD–MS analysis of CSNB and ACE@CSNB referred to the presence of carboxyl, lactonic, and acid anhydride groups as well as phenolic moieties. The adsorption behavior of methylene blue dye and lead ions by ACE@CSNB was found much higher than those concluded by CSNB providing maximum adsorptive capacity values owing to the played clear role by Amberlite cation exchanger. Moreover, ACE@CSNB was efficiently regenerated and confirmed MB and Pb(II) removal with 92.26% and 1000 µmol g−1, respectively Finally, the removal efficiency values from three water matrices by ACE@CSNB biochar were characterized as 91.74–98.19% and 96.27–99.14% for Pb(II) and MB, respectively to refer to the validity and applicability of the investigated ACE@CSNB biochar for treatment of these two pollutants from real water samples with excellent efficiency. Graphical Abstract

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“…The impact of loading the BC with nanoparticles on performance of the obtained nanosorbents is revealed in terms of surface area, % removal (%R) and adsorption capacity ( q e , mg/g). Table 1 also shows the approaches followed for optimization of process variables, where most of the reported approaches were univariate-based [ 41 , 42 , 43 , 44 , 45 , 46 , 47 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Application of Cobalt Oxide (Co3O4)-Impregnated Olive Stones Biochar for the Removal of Rifampicin and Tigecycline: Multivariate Controlled Performance

El-Shafie

Ahsan

Radhwani³

et al. 2022

Nanomaterials

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Cobalt oxide (Co3O4) nanoparticles supported on olive stone biochar (OSBC) was used as an efficient sorbent for rifampicin (RIFM) and tigecycline (TIGC) from wastewater. Thermal stabilities, morphologies, textures, and surface functionalities of two adsorbents; OSBC and Co-OSBC were compared. BET analysis indicated that Co-OSBC possesses a larger surface area (39.85 m2/g) and higher pore-volume compared to the pristine OSBC. FT-IR analysis showed the presence of critical functional groups on the surface of both adsorbents. SEM and EDX analyses showed the presence of both meso- and macropores and confirmed the presence of Co3O4 nanoparticles on the adsorbent surface. Batch adsorption studies were controlled using a two-level full-factorial design (2k-FFD). Adsorption efficiency of Co-OSBC was evaluated in terms of the % removal (%R) and the sorption capacity (qe, mg/g) as a function of four variables: pH, adsorbent dose (AD), drug concentration, and contact time (CT). A %R of 95.18% and 75.48% could be achieved for RIFM and TIGC, respectively. Equilibrium studies revealed that Langmuir model perfectly fit the adsorption of RIFM compared to Freundlich model for TIGC. Maximum adsorption capacity (qmax) for RIFM and TIGC was 61.10 and 25.94 mg/g, respectively. Adsorption kinetics of both drugs could be best represented using the pseudo-second order (PSO) model.

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Cobalt-gadolinium modified biochar as an adsorbent for antibiotics in single and binary systems

Cited by 28 publications

References 94 publications

A comprehensive review of biochar in removal of organic pollutants from wastewater: Characterization, toxicity, activation/functionalization and influencing treatment factors

A comprehensive review of biochar in removal of organic pollutants from wastewater: Characterization, toxicity, activation/functionalization and influencing treatment factors

Functional surface homogenization of nanobiochar with cation exchanger for improved removal performance of methylene blue and lead pollutants

Synthesis and Application of Cobalt Oxide (Co3O4)-Impregnated Olive Stones Biochar for the Removal of Rifampicin and Tigecycline: Multivariate Controlled Performance

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