Enhanced photo catalytic degradation of methyl orange using p-n Co3O4-TiO2 hetero-junction as catalyst

被引：37

作者：

Saeed, Muhammad ^{[1
]}

Usman, Muhammad ^{[1
]}

Ibrahim, Muhammad ^{[2
]}

ul Haq, Atta ^{[1
]}

Khan, Iltaf ^{[3
]}

Ijaz, Hina ^{[1
]}

Akram, Fiza ^{[1
]}

机构：

[1] Govt Coll Univ Faisalabad, Dept Chem, Jhang Rd, Faisalabad, Pakistan

[2] Govt Coll Univ Faisalabad, Dept Environm Sci & Engn, Faisalabad, Pakistan

[3] Heilongjiang Univ, Key Lab Funct Inorgan Mat Chem, Harbin, Peoples R China

来源：

INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING | 2020年 / 18卷 / 5-6期

关键词：

Co3O4-TiO2; methyl orange; photo catalytic activity; photo degradation; p-n junction; PHOTOCATALYTIC DEGRADATION; CHARGE-SEPARATION; NANOROD ARRAYS; TOXIC DYES; AZO-DYE; NANOPARTICLES; REDUCTION; COMPOSITE; BLUE; PERFORMANCE;

D O I：

10.1515/ijcre-2020-0004

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Photo catalytic degradation of pollutants is one of the techniques used for treatment of dye contaminated wastewater. TiO2 has attracted much attention as photo catalyst for treatment of contaminated water. In this study, the photo catalytic performance of TiO2 has been enhanced by formation of p-n Co3O4-TiO2 hetero-junction. The p-n Co3O4-TiO2 hetero-junction was prepared by wet incipient impregnation method and characterized by various techniques. The photo catalytic activity of prepared composite was evaluated by photo degradation of methyl orange. The as prepared Co3O4-TiO2 composite was found as effective catalyst than Co3O4 and TiO2. The higher photo catalytic activity was attributed to p-n junction formed between Co3O4 and TiO2. The degradation data was analyzed according to Eley-Rideal mechanism in terms of 1st and 2nd order kinetics.

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页数：8

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