Behavior of ZnO-doped TiO2/rGO nanocomposite for water treatment enhancement

被引：61

作者：

Bao, Huynh Van ^{[1
,2
,3
]}

Dat, Nguyen Minh ^{[1
,3
]}

Giang, Nguyen Thi Huong ^{[1
,3
]}

Thinh, Doan Ba ^{[1
,2
,3
]}

Tai, Le Tan ^{[1
,2
,3
]}

Trinh, Dinh Ngoc ^{[1
,2
,3
]}

Hai, Nguyen Duy ^{[1
,2
,3
]}

Khoa, Nguyen Anh Dang ^{[3
,4
]}

Huong, Le Minh ^{[1
,2
,3
]}

Nam, Hoang Minh ^{[2
,3
]}

Phong, Mai Thanh ^{[2
,3
]}

Hieu, Nguyen Huu ^{[1
,2
,3
]}

机构：

[1] Ho Chi Minh City Univ Technol HCMUT, Key Lab Chem Engn & Petr Proc CEPP, VNU HCM, 268 Ly Thuong Kiet St,Dist 10, Ho Chi Minh City, Vietnam

[2] Ho Chi Minh City Univ Technol HCMUT, Fac Chem Engn, 268 Ly Thuong Kiet St,Dist 10, Ho Chi Minh City, Vietnam

[3] Vietnam Natl Univ Ho Chi Minh City, Linh Trung Ward, Ho Chi Minh City, Vietnam

[4] Univ Sci, 227 Nguyen Van Cu,Dist 5, Ho Chi Minh City, Vietnam

来源：

SURFACES AND INTERFACES | 2021年 / 23卷

关键词：

Adsorption; Photodegradation; ZnO-TiO2/rGO nanocomposite; Methylene blue; REDUCED GRAPHENE OXIDE; METHYLENE-BLUE DYE; PHOTOCATALYTIC DEGRADATION; ADSORPTION; PERFORMANCE; FABRICATION;

D O I：

10.1016/j.surfin.2021.100950

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Zinc oxide - doped titanium dioxide/reduced graphene oxide (ZnO-TiO2/rGO) nanocomposite was fabricated by the two-step hydrothermal method and used for adsorption and photodegradation of methylene blue in aqueous solution under UV irradiation. The characteristics of the catalyst material were confirmed by Fourier transform infrared spectroscopy, X-ray diffraction, Raman spectroscopy, scanning electron microscope, transmission electron microscopy, energy-dispersive X-ray spectroscopy, Brunauer-Emmett-Teller specific surface area, thermal gravimetric analysis, and UV-vis spectroscopy. The results showed that the presence and uniform distribution of TiO2 and ZnO nanoparticles on the rGO surface with an average diameter of 20 - 30 nm and high specific surface area (182.52 m(2)/g). The photodegradation was investigated via the pH media. The equilibrium adsorption at pH of 9 achieved the highest adsorption efficiency after 60 min (43.68 %) and 60 min photodegradation (99.84 %). According to the results, the photodegradation using ZnO-TiO2/rGO nanocomposite was stated to be a promising pathway for removing the organic dye from water.

引用

页数：9