Synergistic effect of TiO2 size on activated carbon composites for ruthenium N-3 dye adsorption and photocatalytic degradation in wastewater treatment

Zain, Nuraina Mohamad; Lim, Chee Ming; Usman, Anwar; Keasberry, Natasha Ann; Thotagamuge, Roshan; Mahadi, Abdul Hanif

doi:10.1016/j.enmm.2021.100567

Cited by 3 publications

(2 citation statements)

References 44 publications

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“…The same trend is also observed when the air purifier system was reused to control the same concentration of benzene gas pollutant. Similarly, Zain et al [13] reported that AC/TiO2 composites revealed an enhanced removal of Ruthenium N3 dye by coupling both the adsorption and photocatalysis, due to a synergistic influence. The air purifier life span is potentially important to select an air purifier that efficiently removes various pollutants from the air.…”

Section: Application Of Ac/tio2 Air Purifier Filter For Benzene Gas C...mentioning

confidence: 90%

Air pollution remediation using synergetic coupling of AC/TiO₂ filter for benzene gas removal: regeneration and reuse of spent activated carbon after the treatment process

Mohamed

2022

J. Phys.: Conf. Ser.

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Recently, climate change and air pollution are of the most important problems confronting the world. Hence, the present work is designed to provide an air purifier that can be re-utilized many times with high efficiency for several volatile pollutants. The air purifier fabricated from AC/TiO2 was used to investigate the performance of this filter towards the removal of volatile organic compounds (VOCs) from the air. The filter was composed of a mixture of fiber layers (TiO2, SiO2 and AC). The results indicated that the synergistic coupling of adsorption/oxidation technique is effective for removal of the air pollutants as well as for regeneration of the activated carbon to be extensional reused. The performance test of air purifier confirmed its high removal efficiency (98%). It was found that nearly up to 94% and 86% recovery of the filter activity could be achieved after the second and third cycles of treatment, respectively. From these results, AC/TiO2 filter still has the capability to remove and control extra gas pollutants indicating the synergistic coupling effect of TiO2 with the activated carbon. This filter concerns in developing an economic and feasible air purifier system to remove air contaminants for several times.

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Section: Application Of Ac/tio2 Air Purifier Filter For Benzene Gas C...mentioning

confidence: 90%

Air pollution remediation using synergetic coupling of AC/TiO₂ filter for benzene gas removal: regeneration and reuse of spent activated carbon after the treatment process

Mohamed

2022

J. Phys.: Conf. Ser.

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“…These effluents consist of various organic compounds and toxic substances. When not adequately treated, they can not only degrade the environment but also degrade the health of humans and animals [2][3][4][5]. Dyes, which are widely used to impart colour onto products, are among the many effluents that are discharged from textile factories, which account for more than 50% of the world's dyestuff market [6].…”

Section: Introductionmentioning

confidence: 99%

The Use of Gigantochloa Bamboo-Derived Biochar for the Removal of Methylene Blue from Aqueous Solution

Suhaimi

Kooh

Lim

et al. 2022

Adsorption Science & Technology

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In this study, locally grown bamboo (Gigantochloa spp.) was used as feedstock for pyrolysis production of biochar under various pyrolysis temperatures (400–800°C). The resultant biochars were tested for their performance in adsorptive removal of the methylene blue (MB) dye. The scope of the adsorption experiment includes the effects of adsorbent dosage, solution pH, initial adsorbate concentration, and contact time. The adsorption data confirmed that pyrolysis temperature has a significant effect on adsorptive performance, whereas biochar pyrolysed at 500°C (BC500) has the highest adsorptive performance with the maximum adsorption capacity (derived from the Langmuir model) being 86.6 mg g-1. Basic characterisations (SEM, EDX, XRD, FTIR, and BET) were carried out for BC500 where FTIR and SEM confirmed the adsorption of MB onto the biochar, while the BET data showed the reduction of the BET surface area, total pore volume, and pore diameter after the adsorption process.

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Highly Efficient Nanostructured TiO₂@carbon Thin Film for Photocatalytic Degradation and Environmental Remediation: A Green Approach

Kuldeep,

2024

Thin Film Nanomaterials: Synthesis, Properties and Innovative Energy Applications

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The simple Chemical Bath Deposition (CBD) technique was used to create nanostructured TiO2@carbon thin films (TCTF) with improved photocatalytic properties. This research reports the modification of titanium dioxide using coconut husk fibre carbon. The first sol-gel method for the comparative low-temperature carbonization and acid digestion of coconut husk fibres has been suggested for the synthesis of carbon nanoparticles (CNPs) and their composite with TiO2. The microsphere-structured TiO2@carbon thin films were created by simply regulating the deposition process parameters. The morphology exhibits a strong correlation with the methyl orange (MO) photodegradation efficacy of TCTF as well. This discovery offers a suitable method for engineering the energetic and interfacial characteristics of TCTF to improve semiconductor photocatalytic performance. The anatase structure of the TCTF is visible in XRD. According to HR-TEM, TiO2@carbon nanocomposite (TCNCS) is prepared with a dimension of 10-15 nm. The Ti-O-Ti is strongly absorbed between 500 and 800 cm-1 in both TiO2 and the mixture, as shown by the FT-IR spectra. It can be seen from DRS spectra that the bandgap energy (Eg) of TCNCS decreases significantly (3.05 eV). TCTF is composed of microspheres of various sizes and a smooth surface, according to FE-SEM images. Only Ti, C, and O are visible in the EDS result, demonstrating the great purity of the TCNCS made using this technique. Methyl orange (MO) degradation under UV light exposure was used to assess the photocatalytic activity of the TCNCS. The rate constant for TCNCS is greater than TiO2, and the photocatalytic degradation is observed to be pseudo-firstorder.

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Synergistic effect of TiO2 size on activated carbon composites for ruthenium N-3 dye adsorption and photocatalytic degradation in wastewater treatment

Cited by 3 publications

References 44 publications

Air pollution remediation using synergetic coupling of AC/TiO₂ filter for benzene gas removal: regeneration and reuse of spent activated carbon after the treatment process

Air pollution remediation using synergetic coupling of AC/TiO₂ filter for benzene gas removal: regeneration and reuse of spent activated carbon after the treatment process

The Use of Gigantochloa Bamboo-Derived Biochar for the Removal of Methylene Blue from Aqueous Solution

Highly Efficient Nanostructured TiO₂@carbon Thin Film for Photocatalytic Degradation and Environmental Remediation: A Green Approach

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Synergistic effect of TiO2 size on activated carbon composites for ruthenium N-3 dye adsorption and photocatalytic degradation in wastewater treatment

Cited by 3 publications

References 44 publications

Air pollution remediation using synergetic coupling of AC/TiO2 filter for benzene gas removal: regeneration and reuse of spent activated carbon after the treatment process

Air pollution remediation using synergetic coupling of AC/TiO2 filter for benzene gas removal: regeneration and reuse of spent activated carbon after the treatment process

The Use of Gigantochloa Bamboo-Derived Biochar for the Removal of Methylene Blue from Aqueous Solution

Highly Efficient Nanostructured TiO2@carbon Thin Film for Photocatalytic Degradation and Environmental Remediation: A Green Approach

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Product

Resources

About

Air pollution remediation using synergetic coupling of AC/TiO₂ filter for benzene gas removal: regeneration and reuse of spent activated carbon after the treatment process

Air pollution remediation using synergetic coupling of AC/TiO₂ filter for benzene gas removal: regeneration and reuse of spent activated carbon after the treatment process

Highly Efficient Nanostructured TiO₂@carbon Thin Film for Photocatalytic Degradation and Environmental Remediation: A Green Approach