A novel red mud@sucrose based carbon composite: Preparation, characterization and its adsorption performance toward methylene blue in aqueous solution

Kazak, Ömer; Eker, Yasin Ramazan; Akın, İlker; Bingöl, Haluk; Tor, Ali

doi:10.1016/j.jece.2017.05.018

Cited by 49 publications

(12 citation statements)

References 61 publications

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“…The result of FTIR analysis further confirmed the successful synthesis of LaFeO 3 -RM, as indicated in the above SEM analysis. It can be seen that, compared with bulk LaFeO 3 , there were abundant oxygen-containing functional groups of -OH and Si-O on LaFeO 3 -RM, which could promote the adsorption of positively charged substances, such as MB molecules, in the aqueous solution process [ 51 ].…”

Section: Resultsmentioning

confidence: 99%

Activation of bisulfite by LaFeO ₃ loaded on red mud for degradation of organic dye

Meng

Pang

et al. 2022

R. Soc. open sci.

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In this study, red mud (RM) was used as a support for LaFeO 3 to prepare LaFeO 3 -RM via the ultrasonic-assisted sol–gel method for the removal of methylene blue (MB) assisted with bisulfite (BS) in the aqueous solution. Characterization by scanning electron microscopy and the Brunauer–Emmett–Teller method indicated that LaFeO 3 -RM exhibited a large surface area and porous structure with a higher pore volume (i.e. 10 times) compared with the bulk LaFeO 3 . The XRD, XPS and FTIR results revealed that the support of porous RM not only dispersed LaFeO 3 particles but also increased Fe oxidation capability, oxygen-containing functional groups and chemically adsorbed oxygen (from 44.3% to 90.3%) of LaFeO 3 -RM, which improved the catalytic performance in structure and chemical composition. MB was removed through the synergistic effect of adsorption and catalysis, with MB molecules first absorbed on the surface and then degraded. The removal efficiency was 88.19% in the LaFeO 3 -RM/BS system under neutral conditions but only 27.09% in the LaFeO 3 /BS system. The pseudo-first-order kinetic constant of LaFeO 3 -RM was six times higher than that of LaFeO 3 . Fe(III) in LaFeO 3 -RM played a key role in the activation of BS to produce SO 4 ⋅ − by the redox cycle of Fe(III)/Fe(II). Dissolved oxygen was an essential factor for the generation of SO 4 ⋅ − . This work provides both a new approach for using porous industrial waste to improve the catalytic performance of LaFeO 3 and guidance for resource utilization of RM in wastewater treatment.

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Section: Resultsmentioning

confidence: 99%

Activation of bisulfite by LaFeO ₃ loaded on red mud for degradation of organic dye

Meng

Pang

et al. 2022

R. Soc. open sci.

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“…As per literature survey, MB is a synthetic basic dye . In aqueous solution the cationic part of MB is attracted towards the catalyst surface by electrostatic force which facilitates charge transfer mechanism . During this course, the MB has to compete with the H + ions present in ample amount in the acidic medium.…”

Section: Resultsmentioning

confidence: 99%

Visible LED‐Assisted Effective Charge Separation in Ruthenium‐Doped ZnS System for Efficient Photodegradation of Organic Dye

et al. 2019

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Harvesting solar light efficiently and effective photo‐induced charge separated photocatalysts becoming an immense demand for environment salvation. Herein, the one‐step solvothermal method has been employed to synthesize Zn1–xRuxS nanoparticles (NPs). A systematic study for the photocatalytic degradation of Methylene blue (MB) for the first time in Ru doped ZnS system has been carried out with visible light (LED) irradiation. Density functional theory has been employed to study the structural, electronic properties and charge transfer mechanism throughout the Ru doped ZnS system. Theoretical results and UV‐Vis spectra suggest a reduction of bandgap as a function of Ru concentration. Bader charge analysis for both the structures as well as photoluminescence quenching has shown Ru acts as a charge center in the charge transfer process. The optimum photodegradation efficiency is achieved in case of 1% Ru doped ZnS NPs. Thus Ru doping in ZnS NPs has a significant role in showing effective photocatalytic behaviour.

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“…If the interaction between iron oxide and organic compounds containing -OH groups was carried out at the pH of the medium below the pHZPC of magnetite, the interactions that occur between magnetite and these organic compounds were through hydrogen bonds, electrostatic interactions and ligand exchange. If the interaction was carried out at pH > pHZPC of magnetite, the interaction that occurs was hydrogen bonding and ligand exchange, while electrostatic interactions were not possible under these conditions (Zhou et al, 2015;Kazak et al, 2017;Rasoulzadeh et al, 2019). In this study, HA was modified with magnetite at pH 10.…”

Section: Characterization Of Ha-fe3o4mentioning

confidence: 92%

Modified Humic Acid from Peat Soils with Magnetite (Ha-Fe3O4) by Using Sonochemical Technology for Gold Recovery

Rahmayanti

Santosa

Sutarno

2020

JBAT

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Sonochemical technology is a technology that involves ultrasonic waves in chemical reactions. In this study, humic acid isolated from peat soil has been successfully modified with magnetite (HA-Fe3O4) using sonochemical technology. Characterization of the physical and chemical properties of HA-Fe3O4 was carried out using FTIR, XRD, SEM and VSM. HA-Fe3O4 was used for recovery of gold from simulated gold waste (HAuCl4). FTIR characterization showed that the interaction between HA and Fe3O4 was through hydrogen bonds. The crystal size of HA-Fe3O4 using the Debye-Scherrer equation based on the XRD diffractogram was 12.4 nm. The saturation magnetization value of HA-Fe3O4 obtained was 52.80 emu/g. Adsorption studies at various pH showed that HA-Fe3O4 has been successful in recovering of gold from simulated gold waste. The % recovery of gold was 99%. Gold recovery occurs through the adsorption process followed by reduction of Au (III) to Au(0).

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A novel red mud@sucrose based carbon composite: Preparation, characterization and its adsorption performance toward methylene blue in aqueous solution

Cited by 49 publications

References 61 publications

Activation of bisulfite by LaFeO ₃ loaded on red mud for degradation of organic dye

Activation of bisulfite by LaFeO ₃ loaded on red mud for degradation of organic dye

Visible LED‐Assisted Effective Charge Separation in Ruthenium‐Doped ZnS System for Efficient Photodegradation of Organic Dye

Modified Humic Acid from Peat Soils with Magnetite (Ha-Fe3O4) by Using Sonochemical Technology for Gold Recovery

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A novel red mud@sucrose based carbon composite: Preparation, characterization and its adsorption performance toward methylene blue in aqueous solution

Cited by 49 publications

References 61 publications

Activation of bisulfite by LaFeO 3 loaded on red mud for degradation of organic dye

Activation of bisulfite by LaFeO 3 loaded on red mud for degradation of organic dye

Visible LED‐Assisted Effective Charge Separation in Ruthenium‐Doped ZnS System for Efficient Photodegradation of Organic Dye

Modified Humic Acid from Peat Soils with Magnetite (Ha-Fe3O4) by Using Sonochemical Technology for Gold Recovery

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Product

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Activation of bisulfite by LaFeO ₃ loaded on red mud for degradation of organic dye

Activation of bisulfite by LaFeO ₃ loaded on red mud for degradation of organic dye