Photocatalytic paraquat degradation over TiO2 modified by hydrothermal technique in alkaline solution

被引：11

作者：

Nagaraju, Pallavi ^{[1
,2
]}

Khunphonoi, Rattabal ^{[3
,4
]}

Puttaiah, Shivaraju Harikaranahalli ^{[1
]}

Suwannaruang, Totsaporn ^{[2
,3
]}

Kaewbuddee, Chatkamol ^{[2
,3
]}

Wantala, Kitirote ^{[2
,3
,4
]}

机构：

[1] Jagadguru Sri Shivarathreeswara Univ, Fac Life Sci, Dept Water & Hlth, Mysuru, India

[2] Khon Kaen Univ, Fac Engn, Chem Kinet & Appl Catalysis Lab CKCL, Khon Kaen 40002, Thailand

[3] Khon Kaen Univ, Fac Engn, Khon Kaen 40002, Thailand

[4] Khon Kaen Univ, Fac Engn, Res Ctr Environm & Hazardous Subst Management EHS, Khon Kaen 40002, Thailand

来源：

JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES | 2017年 / 20卷 / 02期

关键词：

advanced oxidation process; herbicide; surface response methodology; aging temperature; aging time; TITANIUM-OXIDE NANOTUBES; LOW-TEMPERATURE; THIN-FILMS; ANATASE; NANOPARTICLES; OXIDATION; NANOCRYSTALS; PERFORMANCE; ALACHLOR;

D O I：

10.1515/jaots-2017-0004

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：

In the present research, titanium nanotubes were synthesized via the soft hydrothermal method. A study on the effect of the synthesizing parameters such as aging temperature and time of the hydrothermal process on the photocatalytic paraquat degradation was explored. Central Composite Design (CCD) was used to determine the influence of the preparation parameter on the optimal condition, main and interaction effects on crystalline size, percent paraquat removal by adsorption and photocatalytic degradation as responses. The XRD pattern of the synthesized nanomaterial reported the anatase phase of titania nanotubes. SEM image of the prepared nanomaterial clearly indicated the agglomerated with tubular structure. Band gap energy of the nanotubes was found lower than that of the pure anatase TiO2. Paraquat removal by adsorption is more effective than by photocatalytic degradation. The error of the model remains insignificant for all the three responses.

引用

页数：12

共 45 条

[11] Why gold nanoparticles are more precious than pretty gold: Noble metal surface plasmon resonance and its enhancement of the radiative and nonradiative properties of nanocrystals of different shapes [J].