Tempe Waste Water Degradation Using TiO2-N/Bentonite alginate Granule Photocatalyst with Ultraviolet Light Irradiation

International Conference on Chemistry and Material Science 2017

化学;材料科学

Nisaa, Aldila Khoirun^1 ; Wardhani, Sri^1 ; Purwonugroho, Danar^1 ; Darjito^1

Chemistry Department, University of Brawijaya, Malang, Indonesia^1

关键词: Ammonia concentrations;    Aquatic environments;    Decomposition process;    Photocatalyst activity;    Photocatalyst characterizations;    TiO2-N/bentonite-alginate;    Ultraviolet light irradiation;    Water degradation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/299/1/012030/pdf
DOI  :  10.1088/1757-899X/299/1/012030

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Tempe waste water stew has high ammonia concentration which causes odor due to polluting by anaerobic decay. Free ammonia in the waste has exceeded the limit, thus endangering the aquatic environment. This research aims to determine the activity of photocatalyst granule TiO2-N/bentonite-alginate as decomposers of compounds in the photodegradation process. Photodegradation is the decomposition process of compounds by semiconductors with light. Results expected includes the photocatalyst activity of TiO2-N/bentonite-alginate granule produced by ultraviolet rays is known based on the effect of dopant N concentration on the catalyst and the effect of photocatalytic ratio toward tempe waste water. Methods proposed in this research are activation of bentonite using H2SO40.8 M, TiO2-N synthesize by sonication method with urea as the source of N, then TiO2-N impregnation into bentonite. Photocatalyst in granule form synthesized with alginate was then dripped with syringe pump into 3% (w/v) CaCl2. The photocatalyst characterization will be performed using XRD. The optimum tempe waste water degradation at the concentration of TiO2-N 0.4 (g/g) bentonite is 53.66%. The ratio of photocatalyst and tempe waste water, optimum at 150 mg of photocatalyst with 25 mL of waste equal to 53.66%.