Ultrasound-assisted synthesis of FeTiO3/GO nanocomposite for photocatalytic degradation of phenol under visible light irradiation

被引：154

作者：

Moradi, Masoud ^{[1
]}

Vasseghian, Yasser ^{[2
,3
]}

Khataee, Alireza ^{[4
,5
]}

Harati, Motahareh ^{[6
]}

Arfaeinia, Hossein ^{[7
]}

机构：

[1] Kermanshah Univ Med Sci, Res Ctr Environm Determinants Hlth RCEDH, Hlth Inst, Kermanshah, Iran

[2] Duy Tan Univ, Inst Res & Dev, Da Nang 550000, Vietnam

[3] Duy Tan Univ, Fac Environm & Chem Engn, Da Nang 550000, Vietnam

[4] Univ Tabriz, Fac Chem, Dept Appl Chem, Res Lab Adv Water & Wastewater Treatment Proc, Tabriz 5166616471, Iran

[5] Peoples Friendship Univ Russia, RUDN Univ, 6 Miklukho Maklaya St, Moscow 117198, Russia

[6] Iran Univ Med Sci, Sch Publ Hlth, Dept Environm Hlth Engn, Tehran, Iran

[7] Bushehr Univ Med Sci, Sch Publ Hlth, Dept Environm Hlth Engn, Bushehr, Iran

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2021年 / 261卷

关键词：

FeTiO3/GO; Nanocomposite; Photocatalytic degradation; Phenol; GRAPHENE OXIDE NANOCOMPOSITE; HIGHLY EFFICIENT; SONOCHEMICAL SYNTHESIS; RHODAMINE-B; COMPOSITE; NANOPARTICLES; OXIDATION; REMOVAL; HETEROJUNCTION; PERFORMANCE;

D O I：

10.1016/j.seppur.2020.118274

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Phenolic compounds are dangerous pollutants in industrial effluents that have caused many human and environmental problems. These compounds are resistant to decomposition conventional biological systems. Photocatalytic treatment is amongst the most efficient technique for phenol removal from aqueous media. In this study, FeTiO3/GO nanocomposite was synthesized through the ultrasound-assisted method. Structural, morphological, and optical properties of the synthesized nanocomposite were characterized by TEM, XRD, EDS, XPS, BET, TGA, FTIR, and UV-visible techniques. Optimum conditions for phenol photocatalytic degradation were obtained in 3% of GO content, 0.75 g/L nanocomposite dosage, and pH = 8. The degradation efficiency decreased by increasing phenol concentrations and complete mineralization was observed after 240 min of irradiation in optimum conditions. The effect of scavengers indicated that superoxide and hydroxyl radicals had the main role in the photodegradation process. The hindrance effect of inorganic ions was obtained as HCO3 > Cl > SO42 > NO3. Our experimental results put forward the FeTiO3/GO nanocomposite as a highly stable catalyst that can successfully remove phenolic compounds from aqueous solutions. Only a 10.8% decrease was observed in phenol degradation efficiency after five cycles, showing high recyclability of the FeTiO3/GO nanocomposite.

引用

页数：12

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