Sunlight highly photoactive TiO 2 @poly- p -phenylene composite microspheres for malachite green degradation

Bai, Weibin; Yao, Rijin; Tian, Xiaobo; Guan, Meiqin; Lai, Ningshan; Chen, Qinhui; Xu, Yanlian; Lin, Juqiang

doi:10.1016/j.jtice.2018.03.018

Cited by 8 publications

(1 citation statement)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Chen et al prepared TiO 2 -coated magnetic poly(methyl methacrylate) microspheres for photocatalytic degradation of p-phenylenediamine with good repeatability of photocatalytic performance [ 16 ]. Bai et al prepared the poly-p-phenylene/TiO 2 composite microsphere via sol–gel method, which exhibited good degradation efficiency of malachite green (98.2%), and retained their activity about 85.6% after five uses [ 17 ]. Baig et al prepared Polypyrrole-TiO 2 composite for photocatalytic degradation of methyl orange completely within 60 min [ 18 ].…”

Section: Introductionmentioning

confidence: 99%

Novel TiO2 Nanoparticles/Polysulfone Composite Hollow Microspheres for Photocatalytic Degradation

et al. 2021

View full text Add to dashboard Cite

Nanosized titanium oxide (TiO2) material is a promising photocatalyst for the degradation of organic pollutants, whereas the difficulty of its recycling hinders its practical application. Herein, we reported the preparation of a novel titanium oxide/polysulfone (TiNPs/PSF) composite hollow microspheres by the combination of Pickering emulsification and the solvent evaporation technique and their application for the photodegradation of methyl blue (MB). P25 TiO2 nanoparticles dispersed on the surface of PSF microspheres. The porosity, density and photoactivity of the TiNPs/PSF composite microsphere are influenced by the TiO2 loading amount. The composite microsphere showed good methyl blue (MB) removal ability. Compared with TiO2 P25, and PSF, a much higher MB adsorption speed was observed for TiNPs/PSF microspheres benefited from their porous structure and the electrostatic attractions between the MB+ and the negatively charged PSF materials, and showed good degradation efficiency. For TiNPs/PSF composite microsphere with density close to 1, a 100% MB removal (10 mg L−1) within 120 min at a catalyst loading of 2.5 g L−1 can be obtained under both stirring and static condition, due to well dispersing of TiO2 particles on the microsphere surface and its stable suspending in water. For the non-suspended TiNPs/PSF composite microsphere with density bigger than 1, the 100% MB removal can be only obtained under stirring condition. The removal efficiency of MB for the composite microspheres retained 96.5%, even after 20 cycles. Moreover, this composite microsphere also showed high MB removal ability at acidic condition. The high catalysis efficiency, excellent reusability and good stability make this kind of TiNPs/PSF composite microsphere a promising photocatalyst for the water organic pollution treatment.

show abstract

Section: Introductionmentioning

confidence: 99%

Novel TiO2 Nanoparticles/Polysulfone Composite Hollow Microspheres for Photocatalytic Degradation

et al. 2021

View full text Add to dashboard Cite

show abstract

Harnessing Protein Waste into Reduced Graphitic Carbon Oxide‐Copper‐Collagen Nanocomposite for Visible Light Photocatalytic Degradation of Nano Plastics

Subbiah,

Palanisamy

2024

Advanced Sustainable Systems

View full text Add to dashboard Cite

Nano and micro plastics are harmful to the aqueous environment and the current treatment systems are either ineffective or expensive, which restricts their widespread use. In this research, reduced graphitic carbon oxide (rGO)‐Cu nanoparticles crosslinked with collagen support (rGO‐Cu/Coll) are employed as an efficient photocatalyst for the degradation of polystyrene (PS) nano plastics in water. It is shown that rGO‐Cu/Coll nanocomposite can degrade PS nano plastics when subjected to simulated visible light and direct sunlight. In the photocatalytic degradation of PS nano plastics, the reactive radical species (•OH and O2•−) produced on the surfaces of rGO‐Cu/Coll nanocomposite materials play major roles in de‐polymerization. The investigation of the FESEM, Raman, and UV–vis spectra of the irradiated and non‐irradiated samples reveal observable changes, including the distorted morphology and formation of a new band, with longer exposure times and greater degradation. Additionally, evidence for the photodegradation of PS chains is demonstrated by the observed increase in the intensities of the carboxylate, carbonyl, and hydroxyl absorption regions of the ATR‐FTIR spectra. The study provides a simple approach to the battle against plastic pollution in aquatic ecosystems using green photocatalysts under visible light including direct sunlight without consuming additional energy.

show abstract

Synthesis of potent chitosan beads a suitable alternative for textile dye reduction in sunlight

Khan

Shah

Mehmood

et al. 2018

J Mater Sci: Mater Electron

View full text Add to dashboard Cite

Sunlight highly photoactive TiO 2 @poly- p -phenylene composite microspheres for malachite green degradation

Cited by 8 publications

References 21 publications

Novel TiO2 Nanoparticles/Polysulfone Composite Hollow Microspheres for Photocatalytic Degradation

Novel TiO2 Nanoparticles/Polysulfone Composite Hollow Microspheres for Photocatalytic Degradation

Harnessing Protein Waste into Reduced Graphitic Carbon Oxide‐Copper‐Collagen Nanocomposite for Visible Light Photocatalytic Degradation of Nano Plastics

Synthesis of potent chitosan beads a suitable alternative for textile dye reduction in sunlight

Contact Info

Product

Resources

About